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Cao C, Li F, Ding Q, Jin X, Tu W, Zhu H, Sun M, Zhu J, Yang D, Fan B. Potassium sodium hydrogen citrate intervention on gut microbiota and clinical features in uric acid stone patients. Appl Microbiol Biotechnol 2024; 108:51. [PMID: 38183479 PMCID: PMC10771603 DOI: 10.1007/s00253-023-12953-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 12/06/2023] [Accepted: 12/15/2023] [Indexed: 01/08/2024]
Abstract
The high recurrence rate of renal uric acid stone (UAS) poses a significant challenge for urologists, and potassium sodium hydrogen citrate (PSHC) has been proven to be an effective oral dissolution drug. However, no studies have investigated the impact of PSHC on gut microbiota and its metabolites during stone dissolution therapy. We prospectively recruited 37 UAS patients and 40 healthy subjects, of which 12 patients completed a 3-month pharmacological intervention. Fasting vein blood was extracted and mid-stream urine was retained for biochemical testing. Fecal samples were collected for 16S ribosomal RNA (rRNA) gene sequencing and short chain fatty acids (SCFAs) content determination. UAS patients exhibited comorbidities such as obesity, hypertension, gout, and dyslipidemia. The richness and diversity of the gut microbiota were significantly decreased in UAS patients, Bacteroides and Fusobacterium were dominant genera while Subdoligranulum and Bifidobacterium were poorly enriched. After PSHC intervention, there was a significant reduction in stone size accompanied by decreased serum uric acid and increased urinary pH levels. The abundance of pathogenic bacterium Fusobacterium was significantly downregulated following the intervention, whereas there was an upregulation observed in SCFA-producing bacteria Lachnoclostridium and Parasutterella, leading to a significant elevation in butyric acid content. Functions related to fatty acid synthesis and amino acid metabolism within the microbiota showed upregulation following PSHC intervention. The correlation analysis revealed a positive association between stone pathogenic bacteria abundance and clinical factors for stone formation, while a negative correlation with SCFAs contents. Our preliminary study revealed that alterations in gut microbiota and metabolites were the crucial physiological adaptation to PSHC intervention. Targeted regulation of microbiota and SCFA holds promise for enhancing drug therapy efficacy and preventing stone recurrence. KEY POINTS: • Bacteroides and Fusobacterium were identified as dominant genera for UAS patients • After PSHC intervention, Fusobacterium decreased and butyric acid content increased • The microbiota increased capacity for fatty acid synthesis after PSHC intervention.
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Affiliation(s)
- Cheng Cao
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China
| | - Feng Li
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China
| | - Qi Ding
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China
| | - Xiaohua Jin
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China
| | - Wenjian Tu
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China
| | - Hailiang Zhu
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China
| | - Mubin Sun
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China
| | - Jin Zhu
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Dongrong Yang
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Bo Fan
- Department of Urology, The Changshu Hospital Affiliated to Soochow University (Changshu No. 1 People's Hospital), Changshu, China.
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Demirtas F, Çakar N, Özçakar ZB, Akıncı A, Burgu B, Yalçınkaya F. Risk factors for recurrence in pediatric urinary stone disease. Pediatr Nephrol 2024; 39:2105-2113. [PMID: 38273078 PMCID: PMC11147915 DOI: 10.1007/s00467-024-06300-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/24/2023] [Accepted: 01/12/2024] [Indexed: 01/27/2024]
Abstract
BACKGROUND Children's urinary system stones may develop from environmental, metabolic, anatomical, and other causes. Our objective is to determine the recurrence and prognosis, demographic, clinical, and etiological characteristics of children with urolithiasis. METHODS Medical records of patients were evaluated retrospectively. Patients' demographic data and medical history, serum/urine biochemical and metabolic analysis, blood gas analysis, stone analysis, imaging findings, and medical/surgical treatments were recorded. RESULTS The study included 364 patients (male 187). Median age at diagnosis was 2.83 (IQR 0.83-8.08) years. The most common complaints were urinary tract infection (23%) and urine discoloration (12%). Sixty-two percent had a family history of stone disease. At least one metabolic disorder was found in 120 (88%) of 137 patients having all metabolic analyses: hypercalciuria was found in 45%, hypocitraturia in 39%, and hyperoxaluria in 37%. Anatomical abnormalities were detected in 18% of patients. Of 58 stones analyzed, 65.5% were calcium and 20.6% were cystine stones. Stone recurrence rate was 15% (55/364). Older age (> 5 years), family history of stone disease, stone size (≥ 5 mm), and urinary system anatomical abnormalities were significantly associated with stone recurrence (p = 0.027, p = 0.031, p < 0.001, and p < 0.001, respectively). In adjusted logistic regression analysis, stone size ≥ 5 mm (OR 4.85, 95% CI 2.53-9.3), presence of urinary system anatomical abnormalities (OR 2.89, 95% CI 1.44-5.78), and family history of stone disease (OR 2.41, 95% CI 1.19-4.86) had increased recurrence rate. CONCLUSIONS All children with urolithiasis should be evaluated for factors affecting stone recurrence. Children at higher risk of recurrence need to be followed carefully.
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Affiliation(s)
- Ferhan Demirtas
- Department of Pediatrics, Ankara University School of Medicine, Ankara, Turkey.
| | - Nilgün Çakar
- Division of Pediatric Nephrology, Department of Pediatrics, Ankara University School of Medicine, Ankara, Turkey
| | - Zeynep Birsin Özçakar
- Division of Pediatric Nephrology, Department of Pediatrics, Ankara University School of Medicine, Ankara, Turkey
| | - Aykut Akıncı
- Department of Pediatric Urology, Ankara University School of Medicine, Ankara, Turkey
| | - Berk Burgu
- Department of Pediatric Urology, Ankara University School of Medicine, Ankara, Turkey
| | - Fatoş Yalçınkaya
- Division of Pediatric Nephrology, Department of Pediatrics, Ankara University School of Medicine, Ankara, Turkey
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Steffens F, Grüne B, Rassweiler-Seyfried MC. [Urinary bladder tamponade-an urological emergency]. UROLOGIE (HEIDELBERG, GERMANY) 2024; 63:578-584. [PMID: 38639783 DOI: 10.1007/s00120-024-02340-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/21/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Urinary bladder tamponade is a urological emergency that is part of the clinical routine of every urologist and requires immediate and adequate diagnosis and therapy. OBJECTIVES Presentation of the clinical picture of urinary bladder tamponade including etiology, diagnostics, and therapy as well as formulation of recommendations for action for clinical routine. MATERIALS AND METHODS Structured presentation of the diagnosis and therapy of urinary bladder tamponade with practical recommendations for action based on a current literature search and a clinical case study. RESULTS Urinary bladder tamponade is a usually painful filling of the urinary bladder with blood clots as part of gross hematuria. The central pillars of diagnostics are anamnesis, targeted physical examination, and sonography. Therapy involves the rapid insertion of a flushing catheter with manual evacuation of the tamponade. A flushing catheter with at least 20 French should be used here. CONCLUSION Timely diagnosis and prompt treatment are crucial. This usually includes transurethral catheter insertion with manual evacuation. If the tamponade is unsuccessfully removed, further measures such as endoscopic evacuation or, as a last resort, sectio alta or radical cystectomy are available.
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Affiliation(s)
- Felix Steffens
- Klinik für Urologie und Urochirurgie, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland.
| | - Britta Grüne
- Klinik für Urologie und Urochirurgie, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland
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Muhammad Z, Zoha R. A chemical odyssey: Exploring renal stone diversity by age and sex in Punjab, Pakistan. J Biomed Res 2024; 38:1-3. [PMID: 38832547 DOI: 10.7555/jbr.38.20240039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024] Open
Affiliation(s)
- Zubair Muhammad
- Department of Pathology & Clinical Laboratories, Multan Institute of Kidney Diseases, Multan, Punjab 60000, Pakistan
| | - Rasool Zoha
- Department of Pathology & Clinical Laboratories, Multan Institute of Kidney Diseases, Multan, Punjab 60000, Pakistan
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Grases F, Tomàs Nadal F, Julià Florit F, Costa-Bauza A. Cystine Renal Calculi: New Aspects Related to Their Formation and Development. J Clin Med 2024; 13:2837. [PMID: 38792383 PMCID: PMC11122214 DOI: 10.3390/jcm13102837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Background: Crystallization experiments of renal-calculi-forming compounds (calcium oxalate, calcium phosphates, uric acid) are normally performed by monitoring these processes during periods of time similar to the residence of urine inside the kidney. Nevertheless, cystine requires high supersaturation for its crystallization, and most experiments last for longer periods. It must be considered that at high supersaturation, the inhibitors of crystalline development have poor effects. Methods: The induction time of crystallization (ti) of cystine in experimental conditions similar to those of the formation of cystine renal calculi and the effect of different cystine-binding thiol agents was determined through turbidimetric measurements. We also studied the macro- and microstructure of 30 cystine kidney stones through stereoscopic microscopy and scanning electron microscopy. Results: Under the studied conditions, the ti in absence of crystallization inhibitors was 15 min, and the presence of 9 mM of penicillamine, tiopronin, or N-acetylcysteine totally inhibited crystallization, as their effects relate to the formation of complexes with cystine, although N-acetylcysteine also delayed cystine crystalline development and modified cystine crystal morphology. Cystine stones have traditionally been classified as smooth and rough. The study of their structure shows that all of them begin their formation from a few crystals that generate a compact radial structure. Their subsequent growth, depending on the renal cavity where they are located, gives rise to the rough structure in the form of large blocks of cystine crystals or the smooth structure with small crystals. Conclusions: To prevent the development of cystine renal stones, the formation of small crystals must be avoided by reducing urinary cystine supersaturation, with N-acetylcysteine being the most effective among the studied cystine-binding thiol agents. Also, the removal of cystine crystals through increased water intake and physical activity can be a very important preventive measure.
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Affiliation(s)
| | | | | | - Antonia Costa-Bauza
- Laboratory of Renal Lithiasis Research, University Institute of Health Sciences Research (IUNICS-IdISBa), University of Balearic Islands, 07122 Palma de Mallorca, Spain; (F.G.); (F.T.N.); (F.J.F.)
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Zheng J, Zhang J, Cai J, Yao Y, Lu S, Wu Z, Cai Z, Tuerxun A, Batur J, Huang J, Kong J, Lin T. Development of a radiomics model to discriminate ammonium urate stones from uric acid stones in vivo : A remedy for the diagnostic pitfall of dual-energy computed tomography. Chin Med J (Engl) 2024; 137:1095-1104. [PMID: 37994499 PMCID: PMC11062676 DOI: 10.1097/cm9.0000000000002866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Dual-energy computed tomography (DECT) is purported to accurately distinguish uric acid stones from non-uric acid stones. However, whether DECT can accurately discriminate ammonium urate stones from uric acid stones remains unknown. Therefore, we aimed to explore whether they can be accurately identified by DECT and to develop a radiomics model to assist in distinguishing them. METHODS This research included two steps. For the first purpose to evaluate the accuracy of DECT in the diagnosis of uric acid stones, 178 urolithiasis patients who underwent preoperative DECT between September 2016 and December 2019 were enrolled. For model construction, 93, 40, and 109 eligible urolithiasis patients treated between February 2013 and October 2022 were assigned to the training, internal validation, and external validation sets, respectively. Radiomics features were extracted from non-contrast CT images, and the least absolute shrinkage and selection operator (LASSO) algorithm was used to develop a radiomics signature. Then, a radiomics model incorporating the radiomics signature and clinical predictors was constructed. The performance of the model (discrimination, calibration, and clinical usefulness) was evaluated. RESULTS When patients with ammonium urate stones were included in the analysis, the accuracy of DECT in the diagnosis of uric acid stones was significantly decreased. Sixty-two percent of ammonium urate stones were mistakenly diagnosed as uric acid stones by DECT. A radiomics model incorporating the radiomics signature, urine pH value, and urine white blood cell count was constructed. The model achieved good calibration and discrimination {area under the receiver operating characteristic curve (AUC; 95% confidence interval [CI]), 0.944 (0.899-0.989)}, which was internally and externally validated with AUCs of 0.895 (95% CI, 0.796-0.995) and 0.870 (95% CI, 0.769-0.972), respectively. Decision curve analysis revealed the clinical usefulness of the model. CONCLUSIONS DECT cannot accurately differentiate ammonium urate stones from uric acid stones. Our proposed radiomics model can serve as a complementary diagnostic tool for distinguishing them in vivo .
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Affiliation(s)
- Junjiong Zheng
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, Guangdong 510120, China
| | - Jie Zhang
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, Guangdong 510120, China
| | - Jinhua Cai
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, China
| | - Yuhui Yao
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, Guangdong 510120, China
| | - Sihong Lu
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, Guangdong 510120, China
| | - Zhuo Wu
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, China
| | - Zhaoxi Cai
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, China
| | - Aierken Tuerxun
- Department of Urology, The First People's Hospital of Kashgar Prefecture, Kashgar, Xinjiang 844000, China
| | - Jesur Batur
- Department of Urology, The First People's Hospital of Kashgar Prefecture, Kashgar, Xinjiang 844000, China
| | - Jian Huang
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, Guangdong 510120, China
| | - Jianqiu Kong
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, Guangdong 510120, China
| | - Tianxin Lin
- Department of Urology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong Provincial Clinical Research Center for Urological Diseases, Guangzhou, Guangdong 510120, China
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Assad A, Raizenne BL, El Yamani MEM, Saud A, Bechis SK, Sur RL, Nakada SY, Streeper NM, Sivalingam S, Pais VM, Chew BH, Bird VG, Andonian S, Penniston KL, Bhojani N. The impact of kidney stone disease on quality of life in high-risk stone formers. BJU Int 2024; 133:570-578. [PMID: 38332669 DOI: 10.1111/bju.16294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
OBJECTIVE To assess the impact of kidney stone disease (KSD) and its treatment on the health-related quality of life (HRQOL) of high-risk stone formers with hyperparathyroidism, renal tubular acidosis, malabsorptive disease, and medullary sponge kidney. PATIENTS AND METHODS The Wisconsin Stone Quality of Life questionnaire was used to evaluate HRQOL in 3301 patients with a history of KSD from 16 institutions in North America between 2014 and 2020. Baseline characteristics and medical history were collected from patients, while active KSD was confirmed through radiological imaging. The high-risk group was compared to the remaining patients (control group) using the Wilcoxon rank-sum test. RESULTS Of 1499 patients with active KSD included in the study, the high-risk group included 120 patients. The high-risk group had significantly lower HRQOL scores compared to the control group (P < 0.01). In the multivariable analyses, medullary sponge kidney disease and renal tubular acidosis were independent predictors of poorer HRQOL, while alkali therapy was an independent predictor of better HRQOL (all P < 0.01). CONCLUSIONS Among patients with active KSD, high-risk stone formers had impaired HRQOL with medullary sponge kidney disease and renal tubular acidosis being independent predictors of poorer HRQOL. Clinicians should seek to identify these patients earlier as they would benefit from prompt treatment and prevention.
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Affiliation(s)
- Anis Assad
- Division of Urology, Centre Hospitalier de l'Université de Montréal, Montréal, Quebec, Canada
| | - Brendan L Raizenne
- Division of Urology, Centre Hospitalier de l'Université de Montréal, Montréal, Quebec, Canada
| | | | - Almousa Saud
- Division of Urology, Centre Hospitalier de l'Université de Montréal, Montréal, Quebec, Canada
| | - Seth K Bechis
- Department of Urology, University of California San Diego, San Diego, CA, USA
| | - Roger L Sur
- Department of Urology, University of California San Diego, San Diego, CA, USA
| | - Stephen Y Nakada
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Necole M Streeper
- Department of Urology, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Sri Sivalingam
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Vernon M Pais
- Urology Section, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA
| | - Ben H Chew
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vincent G Bird
- Department of Urology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Sero Andonian
- Division of Urology, McGill University Health Center, Montreal, Quebec, Canada
| | - Kristina L Penniston
- Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Naeem Bhojani
- Division of Urology, Centre Hospitalier de l'Université de Montréal, Montréal, Quebec, Canada
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Zhong W, Zhu W, Zhao Z, Liao B, Mai H, Liu C, Wang K, Zhang X, Xu C, Zeng G. 7.5F Mini Flexible Ureteroscope in Retrograde Intrarenal Surgery: Initial Results from a Multicenter Randomized Clinical Trial. J Endourol 2024; 38:421-425. [PMID: 38299514 DOI: 10.1089/end.2023.0540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
Abstract
Objective: To report the initial results of an randomized clinical trail comparing the safety and efficacy between 7.5F and 9.2F flexible ureteroscope (FUS) in the management of renal calculi <2 cm. Materials and Methods: Eighty patients were enrolled and received retrograde intrarenal surgery (RIRS) with a different size FUS. The operation results and complications were compared. Results: Two cases in the 7.5F group and four cases in the 9.2F group failed to insert the 12/14F ureteral access sheath (UAS), respectively, and no significant difference (p = 0.396) was noted. However, 10/12F UAS was inserted in the 7.5F group, but not available in the 9.2F group, and thus, the 10/12F UAS inserting rate in the 7.5F group was higher than in the 9.2F group (100% vs 0%, p = 0.014), and the UAS insertion failure rate in 9.2F group was higher than in the 7.5F group (10% vs 0%, p = 0.040). The operation time in 7.5F group was shorter than the 9.2F group (35.60 ± 7.86 vs 41.05 ± 8.14, p = 0.003). Less irrigation was required in 7.5F group (813.93 ± 279.47 mL vs 1504.18 ± 385.31 mL, p = 0.000). The postoperative fever rate in 9.2F group was higher than 7.5F group (20% vs 5%, p = 0.043). There was no significant difference in sepsis (0% vs 2.5%, p = 0.314) between the two groups. No significant difference was noted in hospital stay (0.93 ± 0.49 days vs 1.14 ± 0.64 days, p = 0.099) between the two groups. The final stone-free rate (SFR) in 7.5F group was higher than 9.2F group (95% vs 80%, p = 0.043). Conclusion: The latest 7.5F mini FUS was a reliable instrument in RIRS to keep a good visualization with low requirement of irrigation, low postoperative infection complication, and also a high SFR when compared with the conventional 9.2F FUS. Clinical Trial Registration: NCT05231577.
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Affiliation(s)
- Wen Zhong
- Department of Urology and Key Laboratory of Guangdong Province, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wei Zhu
- Department of Urology and Key Laboratory of Guangdong Province, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhijian Zhao
- Department of Urology and Key Laboratory of Guangdong Province, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Banghua Liao
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Haixing Mai
- Department of Urology, The Third Medical Center of PLA General Hospital, Beijing, China
| | - Changwei Liu
- Department of Urology, The Second Affiliated Hospital of Zhengzhou University Medical School, Zhengzhou, China
| | - Kunjie Wang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Xu Zhang
- Department of Urology, The Third Medical Center of PLA General Hospital, Beijing, China
| | - Changbao Xu
- Department of Urology, The Second Affiliated Hospital of Zhengzhou University Medical School, Zhengzhou, China
| | - Guohua Zeng
- Department of Urology and Key Laboratory of Guangdong Province, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Singh N, Agarwal S, Sarpal R. Prospective Evaluation of Extracorporeal Shockwave Lithotripsy in Renal and Upper Ureteric Stone Treatment: Clinical Assessment and Results. Cureus 2024; 16:e61102. [PMID: 38800778 PMCID: PMC11128184 DOI: 10.7759/cureus.61102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2024] [Indexed: 05/29/2024] Open
Abstract
INTRODUCTION Extracorporeal shockwave lithotripsy (ESWL) is a widely accepted non-invasive treatment for renal and upper ureteric stones smaller than 2 cm due to its safety and efficacy. Despite advancements in minimally invasive techniques, extracorporeal shockwave lithotripsy remains an important modality. AIMS AND OBJECTIVE This prospective observational study aimed to evaluate the outcomes of ESWL in managing renal and upper ureteric stones measuring less than 2 cm in terms of stone clearance. MATERIAL AND METHODS In a study conducted at a university-affiliated tertiary care hospital, 119 patients with renal and upper ureteric stones underwent extracorporeal shockwave lithotripsy over a 12-month period. Data on patient demographics, stone characteristics, treatment procedures, and complications were collected. Follow-up assessments were performed at two-week intervals for up to two months post-treatment. RESULTS The mean age of patients was 39.78 years, with a mean stone size of 1.2 cm. Right kidney stones were more prevalent (61.3% [n=76]). Complications included fever (19.3% [n=23]), gross haematuria (24.3% [n=29]), and steinstrasse (21.8% [n=26]). The success rate of extracorporeal shockwave lithotripsy was 81.5% (n=97), with 18.5% (n=22) of patients requiring surgical intervention due to incomplete fragmentation or residual fragments >4 mm. Stone size and density played significant roles in treatment success. CONCLUSION Despite advancements in minimally invasive techniques, ESWL retains its significance as a noninvasive and effective treatment option for renal and upper ureteric stones smaller than 2 cm. Its success depends on various factors, including the stone site, size, and composition. ESWL offers advantages such as minimal morbidity, shorter hospital stays, and better patient compliance. Complications such as steinstrasse are manageable with conservative measures or ancillary procedures. While ESWL may be losing ground in some cases, its noninvasive nature and favourable outcomes make it a valuable option in the armamentarium for stone management.
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Affiliation(s)
- Nimisha Singh
- General Surgery, Himalayan Institute of Medical Sciences, Swami Rama Himalayan University, Dehradun, IND
- Plastic and Reconstructive Surgery, Jawaharlal Nehru Medical College (JNMC) Aligarh Muslim University (AMU), Aligarh, IND
| | - Shikhar Agarwal
- Urology, Himalayan Institute of Medical Sciences, Swami Rama Himalayan University, Dehradun, IND
| | - Rajeev Sarpal
- Urology, Himalayan Institute of Medical Sciences, Swami Rama Himalayan University, Dehradun, IND
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Liu HH, Lin Y, Lin G, Wang LJ, Wan YL. Ultrasonography of acute retroperitoneum. Ultrasonography 2024; 43:179-192. [PMID: 38589285 PMCID: PMC11079507 DOI: 10.14366/usg.23232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/06/2024] [Accepted: 02/14/2024] [Indexed: 04/10/2024] Open
Abstract
The retroperitoneum is an important space in the human body that is often implicated in a range Epub ahead of print of acute medical conditions, some of which can be life-threatening. Ultrasonography may serve as a pivotal first-line imaging technique when assessing patients with suspected retroperitoneal abnormalities. Effective ultrasonography of the retroperitoneum requires a comprehensive grasp of its anatomy, adjacent structures, and potential pathologies. Being well-acquainted with the imaging characteristics of acute conditions can meaningfully assist in an accurate diagnosis and guide subsequent management. This review article summarizes and illustrates the acute conditions involving the retroperitoneum through the lens of ultrasound imaging.
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Affiliation(s)
- Hung-Hsien Liu
- Department of Medical Imaging and Intervention, Tucheng Hospital, Tucheng District, New Taipei City, Taiwan
| | - Yenpo Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
| | - Gigin Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
- Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan City, Taiwan
| | - Li-Jen Wang
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
- Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan City, Taiwan
| | - Yung-Liang Wan
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
- Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan City, Taiwan
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Dong C, Zhou J, Su X, He Z, Song Q, Song C, Ke H, Wang C, Liao W, Yang S. Understanding formation processes of calcareous nephrolithiasis in renal interstitium and tubule lumen. J Cell Mol Med 2024; 28:e18235. [PMID: 38509735 PMCID: PMC10955165 DOI: 10.1111/jcmm.18235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 02/07/2024] [Accepted: 02/28/2024] [Indexed: 03/22/2024] Open
Abstract
Kidney stone, one of the oldest known diseases, has plagued humans for centuries, consistently imposing a heavy burden on patients and healthcare systems worldwide due to their high incidence and recurrence rates. Advancements in endoscopy, imaging, genetics, molecular biology and bioinformatics have led to a deeper and more comprehensive understanding of the mechanism behind nephrolithiasis. Kidney stone formation is a complex, multi-step and long-term process involving the transformation of stone-forming salts from free ions into asymptomatic or symptomatic stones influenced by physical, chemical and biological factors. Among the various types of kidney stones observed in clinical practice, calcareous nephrolithiasis is currently the most common and exhibits the most intricate formation mechanism. Extensive research suggests that calcareous nephrolithiasis primarily originates from interstitial subepithelial calcified plaques and/or calcified blockages in the openings of collecting ducts. These calcified plaques and blockages eventually come into contact with urine in the renal pelvis, serving as a nidus for crystal formation and subsequent stone growth. Both pathways of stone formation share similar mechanisms, such as the drive of abnormal urine composition, involvement of oxidative stress and inflammation, and an imbalance of stone inhibitors and promoters. However, they also possess unique characteristics. Hence, this review aims to provide detailed description and present recent discoveries regarding the formation processes of calcareous nephrolithiasis from two distinct birthplaces: renal interstitium and tubule lumen.
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Affiliation(s)
- Caitao Dong
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Jiawei Zhou
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Xiaozhe Su
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Ziqi He
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Qianlin Song
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Chao Song
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Hu Ke
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Chuan Wang
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Wenbiao Liao
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Sixing Yang
- Department of UrologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
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12
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Elbaset MA, Taha DE, Anas M, Elghareeb A, Abouelkheir RT, Ashour R, Sheir KZ, Osman Y. Ureteral wall thickness as a predictor for non-invasive treatment success for steinstrasse. Can we save time? World J Urol 2024; 42:151. [PMID: 38478098 PMCID: PMC10937774 DOI: 10.1007/s00345-024-04874-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 08/23/2023] [Indexed: 03/17/2024] Open
Abstract
PURPOSE We aimed to define factors affecting the non-invasive overall treatment success (medical expulsive therapy (MET) ± shock wave lithotripsy (SWL)) for uncomplicated ureteral steinstrasse (SS) clearance. METHODS We retrospectively evaluated consecutive patients who underwent SWL for renal stones between 2017 and 2021. Patients with uncomplicated SS were included. All patient's demographic and radiological data, e.g., age, gender, pre-SWL stenting, SS site, type, leading stone size in widest diameter (< 10 mm and ≥ 10 mm), ureteral wall thickness (UWT) in mm against the leading stone were collected. If SS was diagnosed, medical treatment was given for 4 weeks. In case of MET failure, either SWL for the leading stones + MET or direct URS was done. Non-invasive treatment success (SFR) was considered if complete clearance of SS occurred with no complications or the need for invasive intervention. RESULTS A total of 145 patients were included with mean age of 45.9 ± 12.4 years. SFR in case of MET only occurred in 27.9%. Complications happened in 26 patients (17.9%). Non-invasive treatment SFR was achieved in 78 patients (53.8%) totally where SS type I, leading stone size ≤ 10 mm type and decreased UWT around the leading stone increased treatment success. CONCLUSION Ureteral wall thickness is an important factor predicting SS management success. Besides the decreased UWT, non-invasive management should be offered for type I SS with leading stone ≤ 10 mm.
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Affiliation(s)
- M A Elbaset
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt.
- Urology Department, Horus University, New Damietta, Egypt.
| | - Diaa-Eldin Taha
- Urology Department, KafrELshiekh University, KafrELshiekh, Egypt
| | - Marwan Anas
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Ahmed Elghareeb
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Rasha T Abouelkheir
- Radiology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Rawdy Ashour
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - K Z Sheir
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
| | - Yasser Osman
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
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13
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Prod'homme S, Bouzerar R, Forzini T, Delabie A, Renard C. Detection of urinary tract stones on submillisievert abdominopelvic CT imaging with deep-learning image reconstruction algorithm (DLIR). Abdom Radiol (NY) 2024:10.1007/s00261-024-04223-w. [PMID: 38470506 DOI: 10.1007/s00261-024-04223-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 03/14/2024]
Abstract
PURPOSE Urolithiasis is a chronic condition that leads to repeated CT scans throughout the patient's life. The goal was to assess the diagnostic performance and image quality of submillisievert abdominopelvic computed tomography (CT) using deep learning-based image reconstruction (DLIR) in urolithiasis. METHODS 57 patients with suspected urolithiasis underwent both non-contrast low-dose (LD) and ULD abdominopelvic CT. Raw image data of ULD CT were reconstructed using hybrid iterative reconstruction (ASIR-V 70%) and high-strength-level DLIR (DLIR-H). The performance of ULD CT for the detection of urinary stones was assessed by two readers and compared with LD CT with ASIR-V 70% as a reference standard. Image quality was assessed subjectively and objectively. RESULTS 266 stones were detected in 38 patients. Mean effective dose was 0.59 mSv for ULD CT and 1.96 mSv for LD CT. For diagnostic performance, sensitivity and specificity were 89% and 94%, respectively, for ULDCT with DLIR-H. There was an almost perfect intra-observer concordance on ULD CT with DLIR-H versus LDCT with ASIR-V 70% (ICC = 0.90 and 0.90 for the two readers). Image noise was significantly lower and signal-to-noise ratio significantly higher with DLIR-H compared to ASIR-V 70%. Subjective image quality was also significantly better with ULDCT with DLIR-H. CONCLUSION ULD CT with Deep Learning Image Reconstruction maintains a good diagnostic performance in urolithiasis, with better image quality than hybrid iterative reconstruction and a significant radiation dose reduction.
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Affiliation(s)
- Sarah Prod'homme
- Department of Radiology, Amiens University Hospital, 1 Rond-Point du Professeur Christian Cabrol, 80054, Amiens Cedex 01, France
| | - Roger Bouzerar
- Biophysics and Image Processing Unit, Amiens University Hospital, Amiens, France
| | - Thomas Forzini
- Department of Urology and Transplantation, Amiens University Hospital, Amiens, France
| | - Aurélien Delabie
- Department of Radiology, Amiens University Hospital, 1 Rond-Point du Professeur Christian Cabrol, 80054, Amiens Cedex 01, France
| | - Cédric Renard
- Department of Radiology, Amiens University Hospital, 1 Rond-Point du Professeur Christian Cabrol, 80054, Amiens Cedex 01, France.
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14
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Simon J, Kleinclauss F, Chabannes É, Bouiller K, Frontczak A. Urinary tract infection after flexible ureterorenoscopy for urolithiasis in patients with positive treated preoperative urinalysis. Urolithiasis 2024; 52:45. [PMID: 38466446 DOI: 10.1007/s00240-024-01546-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/10/2024] [Indexed: 03/13/2024]
Abstract
Prevalence of kidney stones is increasing worldwide, flexible ureterorenoscopy (f-URS) is the most common surgical treatment. Postoperative urinary tract infection (PUTI) is the primary complication. Some risk factors are classically associated with PUTI, especially preoperative positive urinalysis (POPU). We aimed to identify risk factors for PUTI after f-URS for urolithiasis in patients with treated POPU, and to identify the different pre and postoperative pathogens. Retrospective, single-center study of all f-URS for urolithiasis between January 2004 and December 2020. Procedures with treated POPU were categorized as PUTI or no PUTI (NPUTI). We examined demographics, preoperative, perioperative and postoperative characteristics in each group. Among 1934 procedures analyzed, 401 (20.7%) had POPU; these were categorized into NPUTI (n = 352, 87.8%) and PUTI (n = 49, 12.2%). By univariate analysis, only preoperative stenting duration (76.3 in NPUTI group vs 107.7 days in PUTI group, p = 0.001) was significantly associated with a higher risk of PUTI in univariate analysis. Germ distribution was similar in both groups. We compared pre- and postoperative microbiological data for interventions with PUTI, and found that only 8.7% of pathogens were identical between pre and postoperative urinalysis. Our study shows that the rate of PUTI is higher for patients with a POPU and that preoperative stent duration is the sole risk factor in patients with POPU. The low concordance rate (8.7%) between POPU and post-operative pathogens highlights the need for further research on obtaining sterile preoperative urinalysis, or performing intraoperative culture (urines, stent or stone), to treat PUTI early with an adapted antibiotic therapy.
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Affiliation(s)
- Jeanne Simon
- Department of Urology, Andrology and Renal Transplantation, University Hospital of Besançon, 25000, Besançon, France
- University of Franche-Comté, 25000, Besançon, France
| | - François Kleinclauss
- Department of Urology, Andrology and Renal Transplantation, University Hospital of Besançon, 25000, Besançon, France
- University of Franche-Comté, 25000, Besançon, France
- Nanomedicine Lab, Imagery and Therapeutics, EA 4662, Besançon, France
| | - Éric Chabannes
- Department of Urology, Andrology and Renal Transplantation, University Hospital of Besançon, 25000, Besançon, France
| | - Kevin Bouiller
- Department of Infectious Disease, University Hospital of Besançon, 25000, Besançon, France
- UMR-CNRS 6249 Chrono-Environnement, Université Bourgogne Franche-Comté, 25000, Besançon, France
| | - Alexandre Frontczak
- Department of Urology, Andrology and Renal Transplantation, University Hospital of Besançon, 25000, Besançon, France.
- University of Franche-Comté, 25000, Besançon, France.
- Nanomedicine Lab, Imagery and Therapeutics, EA 4662, Besançon, France.
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15
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Wang M, Zhang Y, Tong H, Liu B, Chen J, Ma Q, Zhang Y. Comparison of ureteral stone measurements for predicting the efficacy of a single session of extracorporeal shockwave lithotripsy: one-, two-, and three-dimensional computed tomography measurements. Urolithiasis 2024; 52:43. [PMID: 38441706 DOI: 10.1007/s00240-024-01538-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 01/28/2024] [Indexed: 03/07/2024]
Abstract
The objective of this study was to compare the value of one-, two- and three-dimensional computed tomography (CT) measurements for predicting the efficacy of a single session of extracorporeal shock wave lithotripsy (ESWL) in patients with a single ureteral stone. A total of 165 patients were included based on the inclusion and exclusion criteria. Different models were constructed using a combination of patients' clinical data and measurements obtained by manual sketching and automated extraction software. Multivariate logistic regression was used to develop the models. Receiver operating characteristic curves were used to assess the performance of the models. There was good interobserver agreement for all measurements in different dimensions (P < 0.001). We also found that hydronephrosis, the largest diameter, the largest area, volume, and mean CT value were significantly greater in the failure group than in the success group (P < 0.01). Furthermore, all sizes and CT measurement values were found to be independent predictors for predicting efficacy after one session of ESWL (P < 0.05). In addition, the multivariate logistic analysis showed that the area under the curve (AUC) for two-dimensional and three-dimensional measurements was superior to that of one-dimensional measurement (P < 0.01). However, when size alone was included as a measurable predictor, there was no significant difference in the AUC among the one-, two-, and three-dimensional measurements (P > 0.05). In summary, after adjusting for clinical data, two- and three-dimensional measurements combining ureteral stone size and CT values were found to be the best predictors of ESWL efficacy, and software-based three-dimensional measurements should be considered to avoid interobserver variability in clinical practice.
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Affiliation(s)
- Meng Wang
- Department of Ultrasound, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China.
| | - Yueyue Zhang
- Department of Radiology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Hua Tong
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Bin Liu
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Jueqi Chen
- Department of Urology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Qi Ma
- Department of Ultrasound, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Yingchun Zhang
- Department of Ultrasound, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
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Al-Khalasi USS, Al-Sarrai Al-Alalawi AKS, Al-Jufaili M, Al-Reesi A, Al-Zakwani I, Al-Asmi MSR, Al-Riyami FB, Vishwakarma R. Atomized Intranasal Ketorolac Versus Intravenous Ketorolac for the Treatment of Severe Renal Colic in the Emergency Department: A Double-Blind, Randomized Controlled Trial. Ann Emerg Med 2024; 83:217-224. [PMID: 37999652 DOI: 10.1016/j.annemergmed.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 11/25/2023]
Abstract
STUDY OBJECTIVE Atomized intranasal (IN) drug administration offers an alternative to the intravenous (IV) route. We aimed to evaluate the analgesic efficacy of IN versus IV ketorolac in emergency department patients with acute renal colic. METHODS We conducted a double-blind, randomized controlled trial on adult patients (aged 18 to 64 years) with severe renal colic and numerical rating scale pain ratings ≥7.0. They were randomly assigned (1:1) to receive single doses of either IN or IV ketorolac. Our main outcomes were differences in numerical rating scale reduction at 30 and 60 minutes. A 95% confidence interval (CI) was calculated for each mean difference, with a minimum clinically important difference set at 1.3 points. Secondary outcomes included treatment response, adverse events, rescue medications, and emergency department revisits. We analyzed using intention-to-treat. RESULTS A total of 86 and 85 patients with similar baseline characteristics were allocated to the IV and IN groups, respectively. Mean numerical rating scale scores were 8.52 and 8.65 at baseline, 3.85 and 4.67 at 30 minutes, and 2.80 and 3.04 at 90 minutes, respectively. The mean numerical rating scale reduction differences between the IV and IN groups were 0.69 (95% CI -0.08 to 1.48) at 30 minutes and 0.10 (95% CI -0.85 to 1.04) at 60 minutes. There were no differences in secondary outcomes. CONCLUSION Neither IN or IV ketorolac was superior to the other for the treatment of acute renal colic, and both provided clinically meaningful reductions in pain scores at 30 to 60 minutes.
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Affiliation(s)
| | | | - Mahmood Al-Jufaili
- Department of Emergency Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | - Abdullah Al-Reesi
- Department of Emergency Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | - Ibrahim Al-Zakwani
- Department of Pharmacology and Clinical Pharmacy, College of Medicine & Health Sciences, Sultan Qaboos University, Muscat, Oman
| | | | - Fatma Bader Al-Riyami
- Emergency Medicine Residency Training Program, Oman Medical Specialty Board, Muscat, Oman
| | - Ramesh Vishwakarma
- Norwich Clinical Trial Unit, Norwich Medical School, University of East Anglia, United Kingdom
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17
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Kingma RA, Doppen C, Bus MTJ, Altobelli E, de Jong IJ, Roemeling S. The significance of clinically insignificant residual fragments after percutaneous nephrolithotomy: an analysis into the relevance of complete stone clearance. World J Urol 2024; 42:78. [PMID: 38353780 PMCID: PMC10866741 DOI: 10.1007/s00345-024-04774-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 01/03/2024] [Indexed: 02/16/2024] Open
Abstract
PURPOSE After treatment for kidney stones, residual fragments with a diameter of ≤ 4 mm are traditionally referred to as 'clinically insignificant residual fragments'. We hypothesize that patients with these fragments are at an increased risk for stone-related morbidity, such as complaints, hydronephrosis, and stone regrowth, when compared to stone-free patients. This study aimed to investigate the relevance of complete stone clearance in surgical treatment of urolithiasis. METHODS We conducted a single-center retrospective cohort study. Patients who underwent percutaneous nephrolithotomy between 2015 and 2020 were included if a CT-scan was available within 6 months after the procedure, and the follow-up duration was at least 1 year. The stone-free status at the end of the first stone episode during the study period was categorized as fully stone-free, not stone-free with small residual fragments (≤ 4 mm) and not stone-free with large residual fragments (> 4 mm). Follow-up data were collected, including stone-related events and re-intervention rates. RESULTS A total of 103 subjects were included with a median follow-up of 21.4 months. Stone-related events occurred in 10 (29.4%) of the fully stone-free subjects, 20 (58.8%) of the subjects with small residual fragments and 25 (71.4%) of the subjects with large residual fragments. The stone-related event-free survival per subgroup resulted in a significantly different survival distribution in a log rank test (p = 0.008). CONCLUSION A complete stone-free status seems to be of fundamental importance for decreasing stone-related morbidity. Further developments and research should focus on optimizing the full clearance of stone material during PCNL.
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Affiliation(s)
- Riemer A Kingma
- Department of Urology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands.
| | - Carleen Doppen
- Department of Urology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Mieke T J Bus
- Department of Urology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Emanuela Altobelli
- Department of Urology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Igle Jan de Jong
- Department of Urology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
| | - Stijn Roemeling
- Department of Urology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700 RB, Groningen, The Netherlands
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Ali AI, Abdelfadel A, Rohiem MF, Hassan A. Semirigid ureteroscopy and tamsulosin therapy as dilatation methods before flexible ureteroscopy: evaluation and benefits. World J Urol 2024; 42:75. [PMID: 38329579 PMCID: PMC10853079 DOI: 10.1007/s00345-023-04696-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 10/30/2023] [Indexed: 02/09/2024] Open
Abstract
OBJECTIVE To evaluate the effect of semirigid ureteroscopy and tamsulosin therapy as dilatation methods before flexible ureteroscopy advancement to the renal collecting system. PATIENTS AND METHODS This prospective study included patients with renal stones less than 2 cm who underwent retrograde flexible ureteroscopy and laser lithotripsy. The patients were randomized into two groups: group A patients were given a placebo for 1 week before flexible ureteroscopy, and group B patients were administered 0.4 mg of tamsulosin once daily for 1 week before surgery and underwent active dilatation using semirigid ureteroscopy before flexible ureteroscopy. The ability of the flexible ureteroscope to reach the collecting system in both groups during the same operative session was assessed. Operative outcomes and complications were collected and analyzed in both groups. RESULTS A total of 170 patients were included in our study, with each group comprising 85 patients. In group B, the flexible ureteroscope successfully accessed the kidney in 61 patients, while in group A, the flexible ureteroscope was successful only in 28 cases (71.4% versus 32.9%). In group A, 33 (38.8%) patients had lower urinary tract symptoms compared to 17 (20.2%) patients in group B (P = 0.013). CONCLUSION Using tamsulosin therapy and semirigid ureteroscopy as dilatation methods before flexible ureteroscopy increased the success of primary flexible ureteroscopy advancement to renal collecting system.
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Affiliation(s)
- Ahmed Issam Ali
- Department of Urology, School of Medicine, Minia University, Minia, 61111, Egypt.
| | | | - Mahmoud F Rohiem
- Department of Urology, Port Said University, Port Said, 6459, Egypt
| | - Ali Hassan
- Department of Urology, School of Medicine, Minia University, Minia, 61111, Egypt
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19
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Tano ZE, Cumpanas AD, Gorgen ARH, Rojhani A, Altamirano-Villarroel J, Landman J. Surgical Artificial Intelligence: Endourology. Urol Clin North Am 2024; 51:77-89. [PMID: 37945104 DOI: 10.1016/j.ucl.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Endourology is ripe with information that includes patient factors, laboratory tests, outcomes, and visual data, which is becoming increasingly complex to assess. Artificial intelligence (AI) has the potential to explore and define these relationships; however, humans might not be involved in the input, analysis, or even determining the methods of analysis. Herein, the authors present the current state of AI in endourology and highlight the need for urologists to share their proposed AI solutions for reproducibility outside of their institutions and prepare themselves to properly critique this new technology.
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Affiliation(s)
- Zachary E Tano
- Department of Urology, University of California, Irvine, 3800 West Chapman Avenue, Suite 7200, Orange, CA 92868, USA.
| | - Andrei D Cumpanas
- Department of Urology, University of California, Irvine, 3800 West Chapman Avenue, Suite 7200, Orange, CA 92868, USA
| | - Antonio R H Gorgen
- Department of Urology, University of California, Irvine, 3800 West Chapman Avenue, Suite 7200, Orange, CA 92868, USA
| | - Allen Rojhani
- Department of Urology, University of California, Irvine, 3800 West Chapman Avenue, Suite 7200, Orange, CA 92868, USA
| | - Jaime Altamirano-Villarroel
- Department of Urology, University of California, Irvine, 3800 West Chapman Avenue, Suite 7200, Orange, CA 92868, USA
| | - Jaime Landman
- Department of Urology, University of California, Irvine, 3800 West Chapman Avenue, Suite 7200, Orange, CA 92868, USA
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20
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Cabo JJS, Miller NL. Nonopioid Pain Management Pathways for Stone Disease. J Endourol 2024; 38:108-120. [PMID: 38009214 DOI: 10.1089/end.2023.0266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2023] Open
Abstract
Introduction: New opioid dependency after urologic surgery is a serious adverse outcome that is well-described in the literature. Patients with stone disease often require multiple procedures because of recurrence of disease and hence are at greater risk for repeat opioid exposures. Despite this, opioid prescribing after urologic surgery remains highly variable and in an emergency setting, opioids are still used commonly in management of acute renal colic. Methods: Two literature searches were performed using PubMed. First, we searched available literature concerning opioid-sparing pathways in acute renal colic. Second, we searched available literature for opioid-sparing pathways in ureteroscopy and percutaneous nephrolithotomy (PCNL). Abstracts were reviewed for inclusion in our narrative review. Results: In the setting of acute renal colic, multiple randomized control trials have shown that nonsteroidal anti-inflammatory drugs (NSAIDs) attain greater reduction in pain scores, decreased need for rescue medications, and decreased vomiting events in comparison with opioids. NSAIDs also form a core component in management of postureteroscopy pain and have been demonstrated in randomized trials to have equivalent to improved pain control outcomes compared with opioids. Multiple opioid-free pathways have been described for postureteroscopy analgesia with need for rescue narcotics falling under 20% in most studies, including in patients with ureteral stents. Enhanced Recovery After Surgery protocols after percutaneous nephrolithotomy are less well described but have yielded a reduction in postoperative opioid requirements. Conclusions: In select patients, both acute renal colic and after kidney stone surgery, adequate pain management can usually be obtained with minimal or no opioid medication. NSAIDs form the core of most described opioid-sparing pathways for both ureteroscopy and PCNL, with the contribution of other components to postoperative pain outcomes limited because of lack of head-to-head comparisons. However, medications aimed specifically at targeting stent-related discomfort form a key component of most multimodal postsurgical pain management pathways. Further investigation is needed to develop pathways in patients unable to tolerate NSAIDs.
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Affiliation(s)
- Jackson J S Cabo
- Department of Urology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Nicole L Miller
- Department of Urology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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21
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Morena T, Vismara Fugini A, Veccia A, Riva M, Peroni A. Outcomes of primary ureteroscopic lithotripsy: The role of maximum ureteral wall thickness at the site of stone impaction. Urologia 2024; 91:117-124. [PMID: 37491955 DOI: 10.1177/03915603231189618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
OBJECTIVES To verify if the maximum thickness of the ureteral wall at the stone site (m-UWT) can affect the outcomes of primary retrograde ureteroscopic lithotripsy (P-URSL) within a single-center dataset. MATERIAL AND METHODS We retrospectively reviewed data on 354 consecutive URSL performed from January 2020 to May 2022 at "Fondazione Poliambulanza" in Brescia (Italy). We included patients older than 18 years who underwent URSL for a single ureteral stone with a maximum diameter ranging from 5 to 10 mm. Patients with anatomical abnormalities, a positive preoperative urinary culture, or without a NCCT performed during the acute event were excluded. Patients were treated in an emergency setting (P-URSL within 48 h from the diagnosis of acute ureteral colic) or in a delayed one (D-URSL after a period of maximum 90 days of ureteral double-j stenting). For the resulting 139 patients we recorded demographic, clinical and stone-related features and perioperative data. We processed these data by univariate and multivariate analysis, and with a logistic regression analysis. RESULTS Of the 139 included procedures, 63 were P-URSL and 76 D-URSL. At the univariate analysis we found that stone diameter (OR 0.845, p = 0.017), stone volume (OR 0.023, p = 0.001), stone density (OR 0.998, p = 0.000) and m-UWT (OR 0.499, p = 0.013) are predictors of P-URSL. Stone density (OR 0.998, p = 0.002) is an independent predictor of P-URSL at the multivariate analysis. At a logistic regression analysis, a distal ureteric position (OR 0.189, p = 0.014), stone diameter (OR 1.289, p = 0.006), and m-UWT (OR 2.297, p = 0.02) were found to be statistically significant predictors of incomplete stone clearance in patients undergoing P-URSL. m-UWT is the only predictor of short-term postoperative adverse events in patients undergoing P-URSL (OR 3.386, p < 0.001). From a descriptive analysis, it emerged that an increased m-UWT (>2 mm) significantly correlates to an endoscopic finding of ureteritis' signs and to an increase in operative time, hospital stay and post-procedural stenting time. A m-UWT greater than 2 mm also correlates with a lower stone free rate (SFR) and with a significant increase in both short and long-term postoperative complications. CONCLUSIONS Our study confirmed a connection between m-UWT and poor endoscopic findings, as well as a direct correlation with the main morphometric parameters of the stone and finally with the outcomes of P-URSL itself. Further studies are necessary to validate our results, so that m-UWT might be routinely considered a useful tool in the decision-making process for P-URSL.
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Affiliation(s)
- Tonino Morena
- Urology Unit, Fondazione Poliambulanza Hospital, Brescia, Italy
| | | | | | - Marianna Riva
- Urology Unit, Fondazione Poliambulanza Hospital, Brescia, Italy
- Urology Unit, ASST Spedali Civili Hospital, University of Brescia, Brescia, Italy
| | - Angelo Peroni
- Urology Unit, Fondazione Poliambulanza Hospital, Brescia, Italy
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22
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Abbas SK, Al-Omary TSS, Fawzi HA. Ultrasound accuracy in evaluating renal calculi in Maysan province. J Med Life 2024; 17:226-232. [PMID: 38813369 PMCID: PMC11131636 DOI: 10.25122/jml-2023-0477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 01/19/2024] [Indexed: 05/31/2024] Open
Abstract
Renal calculi are a common clinical presentation. While ultrasound (US) is a widely used imaging modality for kidney stone diagnosis due to its accessibility and lower cost, its accuracy compared to computerized tomography (CT), the gold standard, remains understudied. This cross-sectional study evaluated the diagnostic accuracy of ultrasound for detecting and characterizing kidney stones compared to computed tomography (CT). Fifty-six patients with suspected kidney stones based on flank pain underwent abdominal ultrasound to assess stone presence, size, location, and the severity of any hydronephrosis (kidney swelling). These findings were then confirmed with a subsequent non-contrast CT scan. There was a fair agreement between US and CT (Kappa = 0.368) for detecting the stone location. The US could not detect 7 (12.5%) stones, being less sensitive in the middle and upper calyx compared to CT. There was a fair agreement between the US and CT (Kappa = 0.394) for detecting the severity of hydronephrosis. The US was less sensitive to moderate and severe hydronephrosis compared to CT. The abdominal ultrasound demonstrated excellent reliability for stone size measurement (intraclass correlation = 0.924), with CT measurements only slightly larger on average (mean difference 0.9 mm). Although abdominal ultrasound provides reliable stone size assessment, its capacity to accurately localize stones and assess hydronephrosis severity is limited.
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Affiliation(s)
- Saud Kadhim Abbas
- Department of Surgery, College of Medicine, University of Misan, Misan, Iraq
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23
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Kanbay M, Copur S, Bakir CN, Hatipoglu A, Sinha S, Haarhaus M. Management of de novo nephrolithiasis after kidney transplantation: a comprehensive review from the European Renal Association CKD-MBD working group. Clin Kidney J 2024; 17:sfae023. [PMID: 38410685 PMCID: PMC10896178 DOI: 10.1093/ckj/sfae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Indexed: 02/28/2024] Open
Abstract
The lifetime incidence of kidney stones is 6%-12% in the general population. Nephrolithiasis is a known cause of acute and chronic kidney injury, mediated via obstructive uropathy or crystal-induced nephropathy, and several modifiable and non-modifiable genetic and lifestyle causes have been described. Evidence for epidemiology and management of nephrolithiasis after kidney transplantation is limited by a low number of publications, small study sizes and short observational periods. Denervation of the kidney and ureter graft greatly reduces symptomatology of kidney stones in transplant recipients, which may contribute to a considerable underdiagnosis. Thus, reported prevalence rates of 1%-2% after kidney transplantation and the lack of adverse effects on allograft function and survival should be interpreted with caution. In this narrative review we summarize current state-of-the-art knowledge regarding epidemiology, clinical presentation, diagnosis, prevention and therapy of nephrolithiasis after kidney transplantation, including management of asymptomatic stone disease in kidney donors. Our aim is to strengthen clinical nephrologists who treat kidney transplant recipients in informed decision-making regarding management of kidney stones. Available evidence, supporting both surgical and medical treatment and prevention of kidney stones, is presented and critically discussed. The specific anatomy of the transplanted kidney and urinary tract requires deviation from established interventional approaches for nephrolithiasis in native kidneys. Also, pharmacological and lifestyle changes may need adaptation to the specific situation of kidney transplant recipients. Finally, we point out current knowledge gaps and the need for additional evidence from future studies.
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Affiliation(s)
- Mehmet Kanbay
- Department of Medicine, Nephrology, Koc University School of Medicine, Istanbul, Turkey
| | - Sidar Copur
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Cicek N Bakir
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Alper Hatipoglu
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Smeeta Sinha
- Department of Renal Medicine, Salford Royal NHS Institute, Northern Care Alliance NHS Foundation Trust, Salford, UK
| | - Mathias Haarhaus
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
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24
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Soderberg L, Ergun O, Ding M, Parker R, Borofsky M, Pais V, Dahm P. Percutaneous nephrolithotomy vs retrograde intrarenal surgery for renal stones: a Cochrane Review. BJU Int 2024; 133:132-140. [PMID: 37942649 DOI: 10.1111/bju.16220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
OBJECTIVES To assess the effects of percutaneous nephrolithotomy (PCNL) vs retrograde intrarenal surgery (RIRS) for the treatment of renal stones in adults. METHODS We performed a comprehensive search of the Cochrane Library, MEDLINE, Embase, three other databases, trials registries, other sources of the grey literature, and conference proceedings up to 23 March 2023. We applied no restrictions on publication language or status. Screening, data extraction, risk-of-bias assessment, and certainty of evidence (CoE) rating using the Grading of Recommendations Assessment, Development and Evaluations (GRADE) approach were done in duplicate by two independent reviewers. This co-publication focuses on the primary outcomes of this review only. RESULTS We included 42 trials that met the inclusion criteria. Stone-free rate (SFR): PCNL may improve SFRs (risk ratio [RR] 1.13, 95% confidence interval [CI] 1.08-1.18; I2 = 71%; 39 studies, 4088 participants; low CoE). Major complications: PCNL probably has little to no effect on major complications (RR 0.86, 95% CI 0.59-1.25; I2 = 15%; 34 studies, 3649; participants; moderate CoE) compared to RIRS. Need for secondary interventions: PCNL may reduce the need for secondary interventions (RR 0.31, 95% CI 0.17-0.55; I2 = 61%; 21 studies, 2005 participants; low CoE) compared to RIRS. CONCLUSION Despite shortcomings in most studies that lowered our certainty in the estimates of effect to mostly very low or low, we found that PCNL may improve SFRs and reduce the need for secondary interventions while not impacting major complications. Ureteric stricture rates may be similar compared to RIRS. We expect the findings of this review to be helpful for shared decision-making about management choices for individuals with renal stones.
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Affiliation(s)
- Leah Soderberg
- Department of Hospital Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Onuralp Ergun
- Urology Section, Minneapolis VA Health Care System, Minneapolis, MN, USA
- Department of Urology, University of Minnesota, Minneapolis, MN, USA
| | - Maylynn Ding
- School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Robin Parker
- W.K. Kellogg Health Sciences Library, Dalhousie University, Halifax, NS, Canada
| | - Michael Borofsky
- Department of Urology, University of Minnesota, Minneapolis, MN, USA
| | - Vernon Pais
- Department of Surgery, Dartmouth Medical School, Lebanon, NH, USA
| | - Philipp Dahm
- Urology Section, Minneapolis VA Health Care System, Minneapolis, MN, USA
- Department of Urology, University of Minnesota, Minneapolis, MN, USA
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25
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Sánchez-Pozos K, Ramírez-Jurado AA, Medina-Escobedo M, Garrido-Dzib ÁG, González-Rocha LA, Gutiérrez-Solis AL, Avila-Nava A, Lugo R. Computed tomographic characterization of urinary stones in patients with urolithiasis from Southeast Mexico. Heliyon 2024; 10:e23547. [PMID: 38169908 PMCID: PMC10758874 DOI: 10.1016/j.heliyon.2023.e23547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024] Open
Abstract
Urolithiasis (UL) is a severe public health concern in southeastern Mexico. Computed tomography (CT) is the first-line diagnostic method for patients with suspected UL. The present study aimed to characterize stones in the entire urinary system using CT and to contribute to personalized treatment in patients with UL. Patients >18 years of age with suspected UL were enrolled. Characteristics of UL included stone size, location (kidney, ureters, and bladder), composition of the stone in Hounsfield units (HU), presence of staghorn stone(s), and obstructive uropathy. Patients were stratified according to sex and age to determine whether stone size and HU were dependent on hormonal factors in females and on prostatic hyperplasia in males. The Mann-Whitney U test was used to compare median values. Frequencies are expressed as percentages and were analyzed using the Mantel-Haenszel chi-squared test. A total of 1150 patients were included in this study, of whom 744 (64.7 %) had UL in only 1 anatomical location in the urinary system, and 406 (35.3 %) had stones in ≥2 anatomical locations. Localization and stone size differed between males and females (p < 0.05). Additionally, males exhibited differences in HU (p = 0.024) and frequency of obstructive uropathy (p = 0.10) when stratified according to age (≤50 and > 50 years). In addition, females exhibited statistical differences in HU (p = 0.010) and kidney stone size (p = 0.047) dependent on age (≤47 and > 47 years). In conclusion, findings suggest that HU and stone size differ in different anatomical structures of the urinary system. In addition, differences in stone size and composition may be associated with age and sex.
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Affiliation(s)
- Katy Sánchez-Pozos
- Research Division, Hospital Juarez de Mexico, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Delegación Gustavo A. Madero, 07760. Ciudad de Mexico, Mexico
| | - Abraham Adolfo Ramírez-Jurado
- Department of Radiology, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Martha Medina-Escobedo
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Ángel Gabriel Garrido-Dzib
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Lizeth Araceli González-Rocha
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Ana Ligia Gutiérrez-Solis
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Azalia Avila-Nava
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Roberto Lugo
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
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26
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Zeinelabden KM, El-Shazly M, Elsheerif E, Kandeel H, Aziz M. The optimal Holmium laser settings for disintegration of cystine and calcium oxalate monohydrate stones: In vitro study. Arab J Urol 2024; 22:138-144. [PMID: 38818259 PMCID: PMC11136462 DOI: 10.1080/20905998.2024.2304521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/06/2024] [Indexed: 06/01/2024] Open
Abstract
Objective Disintegrating cystine and calcium oxalate monohydrate stones present a formidable challenge owing to their hardness and distinct composition. This study aimed to establish optimal laser settings for these hard stones lithotripsy. Patients and Methods Cystine and calcium oxalate monohydrate stones were extracted from two patients. Two experiments were conducted in vitro by utilizing a 272 μm laser fiber with variable settings to disintegrate the cystine and calcium oxalate monohydrate stones. In the first experiment, energy was adjustable while frequency was constant, whereas the second experiment involved constant energy with adjustable frequency on each type of stone and each experiment was repeated three times to ensure robustness and reliability. Results Our findings indicated that for cystine stones, use of higher total power with high energy and low frequency proved to be effective. Conversely, for calcium oxalate monohydrate stones, settings involving higher total power with low energy and high frequency demonstrated superior efficacy and safety. Conclusion Holmium (Ho: YAG) laser settings with higher total power, high energy, and low frequency effectively disintegrate cystine stones despite increased heat, which was measured by a thermometer with a thermocouple. For calcium oxalate monohydrate stones, higher total power, high frequency, and low energy settings are recommended and safe.
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Affiliation(s)
- Khaled M. Zeinelabden
- Urology department, faculty of medicine, Kafrelsheikh University, Kafr Al Sheikh, Egypt
| | - Mohamed El-Shazly
- Urology department, faculty of medicine, Menoufia University, Shibin el Kom, Egypt
| | - Eid Elsheerif
- Urology department, faculty of medicine, Menoufia University, Shibin el Kom, Egypt
| | - Hossam Kandeel
- Urology department, faculty of medicine, Menoufia University, Shibin el Kom, Egypt
| | - Mohammed Aziz
- Urology department, faculty of medicine, Menoufia University, Shibin el Kom, Egypt
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27
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Alharbi AS, Gameraddin M, Gareeballah A, Shrwani ZJ, Sindi MA, Alsaedi HI, Qurashi AA, Aloufi KM, Alshamrani AFA, Alzain AF. Assessment of Hounsfield Units and Factors Associated with Fragmentation of Renal Stones by Extracorporeal Shock Wave Lithotripsy: A Computerized Tomography Study. Tomography 2024; 10:90-100. [PMID: 38250954 PMCID: PMC10821390 DOI: 10.3390/tomography10010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/06/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
The success rate of extracorporeal shock wave lithotripsy (ESWL) is influenced by various factors, including stone density, and is determined through computed tomography scans in terms of Hounsfield units (HU). MATERIALS AND METHODS This retrospective single-center study was conducted in the King Fahad Hospital. Sixty-seven adult patients with renal and ureteric stones were selected randomly and enrolled in the study. Their ages ranged from 20 to 69 years. The patients were examined with non-contrast enhancement (NCCT) to assess the HU of their stones and were consequently treated with ESWL. RESULTS Of the 67 patients, 37.3% had stones that were completely fragmented, while 62.7% had stones that were partially fragmented. The HU, location of the stone, multiplicity of the stone, and patient age were found to be significant factors contributing to stone fragility (p-values < 0.05). The HU data were found to have a positive significant linear correlation with serum calcium (r = 0.28, p-value = 0.036), while serum acid had a negative correlation (r = -0.55, p-value < 0.001). Thus, the probability of calcium-containing stone formation increases with increased HU. In contrast, uric acid stone formation likely develops with decreasing HU with serum uric acid. Renal stones in patients with diabetes mellitus and hypertension were not completely fragmented compared to those without clinical history. CONCLUSIONS Mean HU, location of the stone, laterality, stone status, and the number of ESWL sessions are the most significant factors affecting stone fragility. CT attenuation values can predict the composition of stones from serum calcium and uric acid examinations. Hypertension and diabetes mellitus are risk factors for renal stone fragmentation.
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Affiliation(s)
- Abdallah Saud Alharbi
- Medical Imaging Department, King Fahad Hospital, Al-Madinah 42210, Saudi Arabia (Z.J.S.)
| | - Moawia Gameraddin
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Al-Madinah 41477, Saudi Arabia; (A.G.)
- Department of Diagnostic Radiology, Faculty of Radiological Sciences and Medical Imaging, Alzaiem Alazhari University, Khartoum 13311, Sudan
| | - Awadia Gareeballah
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Al-Madinah 41477, Saudi Arabia; (A.G.)
- Department of Diagnostic Radiology, Faculty of Radiological Sciences and Medical Imaging, Alzaiem Alazhari University, Khartoum 13311, Sudan
| | - Zahra Jibril Shrwani
- Medical Imaging Department, King Fahad Hospital, Al-Madinah 42210, Saudi Arabia (Z.J.S.)
| | - Moa’ath Abdullah Sindi
- Medical Imaging Department, King Fahad Hospital, Al-Madinah 42210, Saudi Arabia (Z.J.S.)
| | | | - Abdulaziz A. Qurashi
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Al-Madinah 41477, Saudi Arabia; (A.G.)
| | - Khalid M. Aloufi
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Al-Madinah 41477, Saudi Arabia; (A.G.)
| | - Abdullah Fahad A. Alshamrani
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Al-Madinah 41477, Saudi Arabia; (A.G.)
| | - Amel F. Alzain
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Al-Madinah 41477, Saudi Arabia; (A.G.)
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28
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Alam R, Winoker JS, Alam A, Wu C, Di Carlo HN, Gearhart JP, Matlaga BR. Clinical patterns and implications of prescription opioid use in a pediatric population for the management of urolithiasis in the emergency room. Urolithiasis 2024; 52:25. [PMID: 38197964 DOI: 10.1007/s00240-024-01529-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/03/2024] [Indexed: 01/11/2024]
Abstract
Extrapolations from the adult population have suggested that opioids should be avoided in the management of pediatric urolithiasis, but the literature is sparse with regards to actual practice patterns and the downstream implications. We sought to investigate the rate of oral opioid administration for children presenting to the emergency room (ER) with urolithiasis and to identify associations between opioid administration and return visits and persistent opioid use. The TriNetX Research and Diamond Networks were used for retrospective exploratory and validation analyses, respectively. Patients <18 years presenting to the emergency room with urolithiasis were stratified by the receipt of oral opioids. Propensity score matching was performed in a 1:1 fashion. Incident cases of opioid administration and risk ratios (RRs) for a return ER visit within 14 days and the presence of an opioid prescription at 6 to 12 months were calculated. Of the 4672 patients in the exploratory cohort, 11.9% were prescribed oral opioids. Matching yielded a total of 1084 patients. Opioids at the index visit were associated with an increased risk of return visits (RR 1.51, 95% CI 1.04-2.20, P = 0.03) and persistent opioid use (RR 4.00, 95% CI 2.20-7.26, P < 0.001). The validation cohort included 6524 patients, of whom 5.7% were prescribed oral opioids. Matching yielded a total of 722 patients and demonstrated that opioids were associated with an increased risk of return visits (RR 1.50, 95% CI 1.04-2.16, P = 0.03) but not persistent opioid use (RR 1.70, 95% CI 0.79-3.67, P = 0.17). We find that the opioid administration rate for pediatric urolithiasis appears reassuringly low and that opioids are associated with a greater risk of return visits and persistent use.
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Affiliation(s)
- Ridwan Alam
- Department of Urology, The James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Marburg 134, Baltimore, MD, 21287, USA.
| | - Jared S Winoker
- The Smith Institute for Urology at Lenox Hill, Zucker School of Medicine at Hofstra/Northwell, New York, NY, USA
| | - Ayman Alam
- Department of Urology, Oakland University William Beaumont School of Medicine, Royal Oak, MI, USA
| | - Charlotte Wu
- Department of Urology, The James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Marburg 134, Baltimore, MD, 21287, USA
| | - Heather N Di Carlo
- Department of Urology, The James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Marburg 134, Baltimore, MD, 21287, USA
| | - John P Gearhart
- Department of Urology, The James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Marburg 134, Baltimore, MD, 21287, USA
| | - Brian R Matlaga
- Department of Urology, The James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, 600 N. Wolfe St., Marburg 134, Baltimore, MD, 21287, USA
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29
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González-Enguita C, Garcia-Giménez R, Garcia-Guinea J, Correcher V. Spectral characterization of renal calculi collected from population in downtown Madrid (Spain). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 304:123395. [PMID: 37716040 DOI: 10.1016/j.saa.2023.123395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/18/2023] [Accepted: 09/09/2023] [Indexed: 09/18/2023]
Abstract
This paper reports on a comprehensive approach to characterize a set of kidney stones through various analytical techniques including ESEM-EDS, XRD, Raman, and CL spectroscopy, linked to an assessment of the patient's lifestyle and dietary habits. The use of these techniques can provide valuable insights into the underlying causes of stone formation and guide strategies for prevention and treatment. ESEM-EDS and XRD are commonly used techniques for kidney stone characterization due to their complementary nature, enabling the identification of a wide range of renal calculi. However, these techniques may not be sensitive enough to determine the detailed composition of the samples. In such cases, Raman and CL techniques can be used to provide more precise information about the chemical and structural composition of the stones. Raman spectroscopy, for example, can identify molecular phases observed under an optical microscope characterizing chemical compositions through vibrational modes associated with specific bonds. The CL spectral emission within the 250-850 nm range can also yield valuable information about the mineral phases, including the identification of structural crystallinity, hydrated molecules, Ca-OH bonds, and oxygen defects. By correlating spectral analyses with patient habits, this study identifies potential exogenous factors contributing to stone formation, including excess protein consumption, urinary bacterial infections, and oxalate-rich diets. This comprehensive approach provides a more complete understanding of the composition of kidney stones helping to personalized prevention and treatment strategies.
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Affiliation(s)
- C González-Enguita
- Hospital Univ. Fundación Jiménez Díaz, Av. Reyes Católicos 2, 28040 Madrid, Spain
| | - R Garcia-Giménez
- Dpto. Geología y Geoquímica. Fac. Ciencias, Univ. Autónoma, 28049 Madrid, Spain
| | - J Garcia-Guinea
- Museo Nacional de Ciencias Naturales (CSIC), c/José Gutierrez Abascal 2, Madrid 28006, Spain
| | - V Correcher
- CIEMAT, Av. Complutense 40, Madrid 28040, Spain.
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30
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Song H, Liang L, Liu H, Liu Y, Hu W, Zhang G, Xiao B, Fu M, Li J. Mirabegron for medical expulsive therapy of ureteral stones: a systematic review and meta-analysis. Front Med (Lausanne) 2024; 10:1280487. [PMID: 38249979 PMCID: PMC10797003 DOI: 10.3389/fmed.2023.1280487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/18/2023] [Indexed: 01/23/2024] Open
Abstract
Objective To systematically review and quantitively evaluate the efficacy and safety of mirabegron as a medical expulsive therapy for ureteral stones. Methods We performed an extensive search of the EMBASE and PubMed databases for studies examining the use of mirabegron as a medical expulsive therapy for ureteral stones. The primary outcome measure assessed was the stone expulsion rate (SER), while the secondary outcomes evaluated were the stone expulsion interval (SEI) and the occurrence of pain episodes during follow-up. Risk ratios (RRs) and mean differences (MDs) with their respective 95% CIs were calculated. Results We included a total of seven studies involving 728 participants. Our analysis revealed a significant increase in the stone expulsion rate (SER) with mirabegron (RR = 1.40; 95% CI = 1.17-1.67; p < 0.001) and a reduction in the frequency of pain episodes (MD = -0.80; 95% CI = -0.39 to -0.21; p = 0.008) compared to the control group. No significant difference was found in SEI between the two groups (MD = -3.04; 95% CI = -6.33 to 0.25; p = 0.07). Subgroup analysis revealed that the increased SER was significant for distal ureteral stones, but not for proximal and middle ureter stones. Compared to tamsulosin or silodosin, mirabegron showed no significant difference in SER, SEI, or pain episode frequency. The adverse effects of mirabegron were relatively rare and mild. Conclusion Mirabegron appears to be a promising candidate for the MET of distal ureteral stones rather than proximal and middle ureteral stones, as it significantly increases SER and reduces pain episode frequency. Further well-designed randomised controlled trials are needed to validate and affirm these findings. Systematic Review Registration PROSPERO (CRD42022341603).
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Affiliation(s)
| | | | | | | | | | | | | | - Meng Fu
- Department of Urology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Jianxing Li
- Department of Urology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
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Rungrasameviriya P, Santilinon A, Atichartsintop P, Hadpech S, Thongboonkerd V. Tight junction and kidney stone disease. Tissue Barriers 2024; 12:2210051. [PMID: 37162265 PMCID: PMC10832927 DOI: 10.1080/21688370.2023.2210051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 04/30/2023] [Indexed: 05/11/2023] Open
Abstract
Defects of tight junction (TJ) are involved in many diseases related to epithelial cell functions, including kidney stone disease (KSD), which is a common disease affecting humans for over a thousand years. This review provides brief overviews of KSD and TJ, and summarizes the knowledge on crystal-induced defects of TJ in renal tubular epithelial cells (RTECs) in KSD. Calcium oxalate (CaOx) crystals, particularly COM, disrupt TJ via p38 MAPK and ROS/Akt/p38 MAPK signaling pathways, filamentous actin (F-actin) reorganization and α-tubulin relocalization. Stabilizing p38 MAPK signaling, reactive oxygen species (ROS) production, F-actin and α-tubulin by using SB239063, N-acetyl-L-cysteine (NAC), phalloidin and docetaxel, respectively, successfully prevent the COM-induced TJ disruption and malfunction. Additionally, genetic disorders of renal TJ, including mutations and single nucleotide polymorphisms (SNPs) of CLDN2, CLDN10b, CLDN14, CLDN16 and CLDN19, also affect KSD. Finally, the role of TJ as a potential target for KSD therapeutics and prevention is also discussed.
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Affiliation(s)
- Papart Rungrasameviriya
- Nawamethee Project, Doctor of Medicine Program, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Aticha Santilinon
- Nawamethee Project, Doctor of Medicine Program, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Palita Atichartsintop
- Nawamethee Project, Doctor of Medicine Program, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sudarat Hadpech
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Tang H, Wu D, Liu Z, Liu X, Yuan H, Jin X, Gao S, Chen G. Polyvinylpyrrolidone hydrogel coating for ureteral stent: Safety and performance evaluation. Biomed Mater Eng 2024; 35:205-217. [PMID: 38277278 DOI: 10.3233/bme-230179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
BACKGROUND Ureteral stents are commonly used in urology. However, complications such as encrustation and infection on the surface of the stent, and injury to the ureteral mucosa can occur after implantation, causing discomfort for patients. OBJECTIVE We intend to confirm the biosafety of polyvinylpyrrolidone (PVP) hydrophilic coating and its lubrication properties for surface modification of ureteral stents to reduce friction and improve patient comfort. METHODS Based on our previous studies, we have developed a PVP hydrophilic coating for surface modification of ureteral stents. We firstly investigated the cytotoxicity, intradermal irritation, delayed type hypersensitivity, and acute systemic reactions of stent coating extracts. We further characterized the break strength, retention strength, and dynamic friction of the stent. RESULTS The cell survival rate of all experimental groups was greater than 70%. No hypersensitivity reaction, systemic toxicity reaction, or obvious intradermal reaction were observed. The above results indicate that the test results of the modified stent meet the requirements of ISO 10993-5: 2009 (Cytotoxicity); ISO 10993-10:2021 (Sensitization and Irritation); ISO 10993-11:2017 (Acute Systemic Toxicity). After soaking in artificial urine for an extended period, there was no obvious change in its super-slip performance. CONCLUSION Our results confirm the safety and lubrication characteristics of PVP hydrophilic coating for ureteral stent surface modification. The performance of this coating has the potential to reduce complications after stent implantation, thereby improving patient comfort, reducing medical burden, and has a good clinical application prospect.
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Affiliation(s)
- Haibin Tang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dimeng Wu
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, China
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Zheng Liu
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, China
| | - Xi Liu
- College of Biomass Science and Engineering, Sichuan University, Chengdu, China
| | - Heng Yuan
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaosong Jin
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shuai Gao
- Chengdu Daxan Innovative Medical Tech. Co., Ltd., Chengdu, China
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Gang Chen
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Kashi AH, Simforoosh N, Nouralizadeh A, Ghasemi SM, Nayebzade A, Bonakdar Hashemi M, Valipour R, Basiri A, Tabibi A, Zargar H, Dadpour M, Rouientan H, Narouie B. The experience of a tertiary referral center with laparoscopic pyelolithotomy for large renal stones during 18 years. Sci Rep 2023; 13:23102. [PMID: 38155230 PMCID: PMC10754888 DOI: 10.1038/s41598-023-50331-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/19/2023] [Indexed: 12/30/2023] Open
Abstract
This study aimed to evaluate the outcomes of laparoscopic pyelolithotomy, including its efficacy and feasibility in treatment of large renal stones. All patients who underwent laparoscopic pyelolithotomy operations in a referral center were enrolled from 2003 to 2020. The final analysis included 436 patients. The total stone free rate was 88.3% and the stone-free rate for staghorn/multiple stones versus other types of stones was 81% vs. 91% (P = 0.002). Likewise, the total operation duration was 158 ± 50 and the operation duration for staghorn/multiple stones versus other types of stones was 171 ± 51 min vs. 153 ± 49 min (P < 0.001). The operation duration (169 ± 51 vs. 155 ± 58 vs. 155 ± 42 min) and hospitalization (4.5 ± 2.3 vs. 4.0 ± 2.2 vs. 3.6 ± 1.8) decreased with increasing the surgeons' experience over time. The outcomes of laparoscopic pyelolithotomy for children versus adults versus geriatric patients and in patients with normal versus abnormal kidney anatomy did not reveal statistically significant differences. Laparoscopic pyelolithotomy could be employed as an alternative surgical approach for patients with large kidney stones of any age or with kidney abnormalities provided that appropriate expertise is available to carry out the procedure.
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Affiliation(s)
- Amir Hossein Kashi
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Nasser Simforoosh
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Akbar Nouralizadeh
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Seyed Mohammad Ghasemi
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Amirhossein Nayebzade
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Milad Bonakdar Hashemi
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Reza Valipour
- Department of Urology, Tehran Medical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Abbas Basiri
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Ali Tabibi
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Homayoun Zargar
- Department of Urology, Western Health, Melbourne, Australia
- Department of Urology, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
| | - Mehdi Dadpour
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Hamidreza Rouientan
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Behzad Narouie
- Urology and Nephrology Research Center (UNRC), Department of Urology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran.
- Department of Urology, Zahedan University of Medical Sciences, Zahedan, Iran.
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Haghpanah A, Kamran H, Irani D, Kohansal E, Rahmanian M, Defidio L, Dehghani A, Jahanabadi Z, Askarpour MR. Has the COVID-19 pandemic affected ureteral stone management in pregnant women? A retrospective single-center study. Urologia 2023:3915603231216154. [PMID: 38142409 DOI: 10.1177/03915603231216154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
INTRODUCTION This study aimed to evaluate the effect of coronavirus disease (COVID-19) on the patients' referral in the pregnant population and also investigate each treatment approach's advantages and disadvantages for acute renal colic in pregnancy. METHODS In this retrospective study, we included all pregnant women with ureteral stones referred to a referral center between January 2019 and March 2021. RESULTS Among 53 pregnant women, 18 (33.9%) were on conservative therapy, which passed the stone without any complications. Double J stent or nephrostomy tube insertion was done for 24 patients (45.2%). Seventeen of these patients (70.8%) presented post-surgical complications, including hematuria (29.2%), pyelonephritis (20.8%), and lower urinary tract symptoms (20.8%). Transurethral lithotripsy (TUL) was done in 11 patients (20.7%). Only one of these patients developed hematuria following TUL. Thus, in our population study, double J stent or nephrostomy insertion was associated with a higher chance of postoperative complications than TUL (p-value = 0.001). Thirty-six patients were referred within 13 months before the entry of COVID-19, while 17 were referred during a similar approximate duration after the COVID-19 entry into the country. Only the initial presentation had a significant difference between these two periods (p-value = 0.034). CONCLUSIONS When conservative treatment fails, we recommend TUL as the second-line treatment over temporary procedures, such as double J stent or nephrostomy insertion. Of note, in a group of patients with an emergent clinical setting, including active infection, deteriorating renal function, signs of preterm labor, solitary kidney, etc., double J or nephrostomy tube insertion remains the preferred management method for its fast resolution of obstruction and infection. Besides, a decrease in visits with an increase in complicated cases after COVID-19 was observed, maybe due to a delay in referring.
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Affiliation(s)
- Abdolreza Haghpanah
- Endourology Ward, Department of Urology, Shiraz University of Medical Sciences, Shiraz, Iran
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hooman Kamran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Dariush Irani
- Endourology Ward, Department of Urology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Erfan Kohansal
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Rahmanian
- Medical School, MPH Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Anahita Dehghani
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Jahanabadi
- Department of Urology, Shiraz University of Medical Sciences, Shiraz, Iran
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Lumbreras J, Madariaga L, Rodrigo MD. Pediatric renal lithiasis in Spain: research, diagnostic and therapeutic challenges, and perspectives. Front Pediatr 2023; 11:1294319. [PMID: 38143536 PMCID: PMC10746353 DOI: 10.3389/fped.2023.1294319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/20/2023] [Indexed: 12/26/2023] Open
Abstract
Incidence and prevalence of urolithiasis is apparently increasing worldwide, also among children and adolescents. Nevertheless, robust data have only been obtained in a few countries. In Spain, a voluntary Registry for Pediatric Renal Lithiasis has been active since 2015. Irregular participation limits its applicability, as well as its limitation to patients with a stone available for morphocompositional study, to obtain data about incidence and prevalence. On the other hand, findings about typology of stones and clinical and analytical characteristics of these subjects have been communicated in several meetings. Other valuable efforts in this field are the elaboration of guidelines for the collection and processing of urine samples for the study of urolithiasis in pediatric patients with the consensus of the Spanish Society for Pediatric Nephrology (AENP) as well as the Spanish Society for Laboratory Medicine (SEQC), the collaborative network RenalTube for the diagnosis of primary tubulopathies and the registry of patients with Primary Hyperoxaluria (OxalSpain). In many hospitals from the public healthcare system, pediatric nephrologists are the specialists in charge of the management of children with kidney stones, but there is no formal regulation on this competence. Other specialists, such as urologists, pediatric surgeons or pediatric urologists, in many cases do not offer a complete insight into the etiopathogenic mechanisms and the consequent medical treatment. Access to medication according to standards of treatment is warranted, provided a correct diagnosis is achieved, but criteria for the reimbursement of certain therapies, such as RNAi drugs for primary hyperoxaluria, are arguable.
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Affiliation(s)
- Javier Lumbreras
- Pediatric Nephrology Unit, Department of Pediatrics, Son Espases University Hospital, Balearic Islands Health Research Institute (IdISBa), Palma de Mallorca, Spain
| | - Leire Madariaga
- Pediatric Nephrology Department, Cruces University Hospital, IIS Biocruces Bizkaia, University of the Basque Country, CIBERER/CIBERDEM/EndoERN, Barakaldo, Spain
| | - María Dolores Rodrigo
- Pediatric Nephrology Unit, Department of Pediatrics, Son Espases University Hospital, Balearic Islands Health Research Institute (IdISBa), Palma de Mallorca, Spain
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Kandasamy M, Chan M, Xiang H, Chan L, Ridley L. Comparison of diagnostic accuracy of ultra low-dose computed tomography and X-ray of the kidneys, ureters and bladder for urolithiasis in the follow-up setting. J Med Imaging Radiat Oncol 2023. [PMID: 37997533 DOI: 10.1111/1754-9485.13605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023]
Abstract
INTRODUCTION Urolithiasis is frequently followed up with a low-dose computed tomography of the kidneys ureters and bladder (LD-CTKUB) with doses typically less than 3 millisieverts. Although X-ray is a lower dose (0.5-1.1 mSv) alternative for follow up, it has lower diagnostic accuracy and is limited to radiopaque calculi. This study aims to compare the diagnostic accuracy of sub-millisievert ultra-low dose CT (ULD-CTKUB) against X-ray KUB for the follow up of urolithiasis when both are compared against the standard of care of a low-dose CT KUB (LD-CTKUB). METHODS This prospective study included patients with a known diagnosis of urolithiasis on prior CTKUB presenting for follow up. Each patient underwent a repeat reference LD-CTKUB, ULD-CTKUB and X-ray KUB. All imaging studies were interpreted by three readers. The radiation dose and quantitative noise was calculated for each CT. Both CT and X-ray were assessed for the presence, number and size of all calculi ≥2 mm. RESULTS A total of 58 patients were included in this study. LD-CTKUB identified 197 calculi. ULD-CTKUB in our study had a mean effective dose of 0.5 mSv compared to X-ray KUB where doses range in the literature from 0.5 to 1.1 mSv. Per-patient pooled analysis for intrarenal calculi when comparing ULD-CTKUB versus X-ray KUB against a reference LD-CTKUB found a sensitivity of 90% versus 67% (P < 0.01) and specificity of 93% versus 98% (P = 0.18) respectively. For ureteric calculi, the sensitivity was 67% versus 33% (P < 0.01) and specificity 94% versus 94% (P = 1.00) respectively. Per-stone pooled analysis detection rate was 79% for ULD-CTKUB versus 48% for X-ray (P < 0.01) when each was compared to the reference LD-CTKUB. Interobserver agreement was high for intrarenal calculi and moderate for ureteric calculi. CONCLUSION Sub-millisievert ULD-CTKUB had lower doses and higher sensitivity than X-ray in patients requiring follow up of known urolithiasis.
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Affiliation(s)
- Mayooran Kandasamy
- Department of Radiology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Michael Chan
- Department of Radiology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- University of Sydney, Sydney, New South Wales, Australia
| | - Hao Xiang
- Department of Radiology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- University of New South Wales, Sydney, New South Wales, Australia
| | - Lewis Chan
- Department of Urology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Lloyd Ridley
- Department of Radiology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- University of Sydney, Sydney, New South Wales, Australia
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Owen K, Joe W, Ivander A, Palgunadi IN, Adhyatma KP. Role of Noncontrast Computed Tomography Parameters in Predicting the Outcome of Extracorporeal Shock Wave Lithotripsy for Upper Urinary Stones Cases: A Meta-analysis. Acad Radiol 2023:S1076-6332(23)00556-1. [PMID: 37985292 DOI: 10.1016/j.acra.2023.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 11/22/2023]
Abstract
RATIONALE Extracorporeal shock wave lithotripsy (ESWL) is widely considered the primary approach for managing urinary tract stones. This study aimed to assess the predictive factors associated with non-contrast computed tomography (NCCT)-based parameters of upper urinary stones in relation to the outcomes of ESWL. MATERIALS AND METHODS A systematic search was conducted in PubMed, ScienceDirect, Web of Science, and Cochrane Library to identify all relevant studies published up to June 3, 2023. Several NCCT-based parameters to predict ESWL outcomes, comprised of mean stone density (MSD), skin-to-stone distance (SSD), and stone size, were extracted and analyzed using Review Manager software. RESULTS Out of 979 publications screened, a total of 39 publications, involving 7869 patients, were enrolled in the analysis. The pooled estimate demonstrated significant differences between MSD, and stone size between successful and failure of stone fragmentation groups, in which lower values of these parameters are associated with successful ESWL outcomes. CONCLUSION The results from the current study suggested that lower NCCT parameters, notably MSD, SSD, and stone size, are significantly associated with successful ESWL outcome. However, additional large-scale prospective studies are required to utilize these parameters effectively, and the optimal cutoff value should be determined.
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Affiliation(s)
- Kevin Owen
- Bangli General Hospital, Bangli, Indonesia (K.O.).
| | - Wilbert Joe
- Regional Public Hospital dr.M. Thomsen Nias, Gunungsitoli, Indonesia (W.J.)
| | - Alvin Ivander
- Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia (A.I.)
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Soderberg L, Ergun O, Ding M, Parker R, Borofsky MS, Pais V, Dahm P. Percutaneous nephrolithotomy versus retrograde intrarenal surgery for treatment of renal stones in adults. Cochrane Database Syst Rev 2023; 11:CD013445. [PMID: 37955353 PMCID: PMC10642177 DOI: 10.1002/14651858.cd013445.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
BACKGROUND Kidney stones (also called renal stones) can be a source of pain, obstruction, and infection. Depending on size, location, composition, and other patient factors, the treatment of kidney stones can involve observation, shock wave lithotripsy, retrograde intrarenal surgery (RIRS; i.e. ureteroscopic approaches), percutaneous nephrolithotomy (PCNL), or a combination of these approaches. OBJECTIVES To assess the effects of percutaneous nephrolithotomy (PCNL) versus retrograde intrarenal surgery (RIRS) for the treatment of renal stones in adults. SEARCH METHODS We performed a comprehensive search of the Cochrane Library, MEDLINE, Embase, Scopus, and two trials registries up to 23 March 2023. We applied no restrictions on publication language or status. SELECTION CRITERIA We included randomized controlled trials that evaluated PCNL (grouped by access size in French gauge [Fr] into three groups: ≥ 24 Fr [standard PCNL], 15-23 Fr [mini-PCNL and minimally invasive PCNL], and < 15 Fr [ultra-mini-, mini-micro-, super-mini-, and micro-PCNL]) versus RIRS. DATA COLLECTION AND ANALYSIS Two review authors independently selected studies and extracted data from the included studies. Our primary outcomes were stone-free rate, major complications, and need for secondary interventions. Our main secondary outcomes were unplanned medical visits to emergency/urgent care or outpatient clinic, length of hospital stay, ureteral stricture or injury, and quality of life. We performed statistical analyses using a random-effects model. We rated the certainty of evidence using GRADE criteria. We adopted a minimally contextualized approach with predefined thresholds for minimal clinically important differences (MCIDs). MAIN RESULTS We included 42 trials assessing the effects of PCNL versus RIRS in 4571 randomized participants. Twenty-two studies were published as full-text articles, and 20 were published as abstract proceedings. The average size of stones ranged from 10.1 mm to 39.1 mm. Most studies did not report sources of funding or conflicts of interest. The main results for the most important outcomes are summarized below. Stone-free rate PCNL compared with RIRS may improve stone-free rates (risk ratio [RR] 1.13, 95% confidence interval [CI] 1.08 to 1.18; I2 = 71%; 39 studies, 4088 participants; low-certainty evidence). Based on 770 participants per 1000 being stone-free with RIRS, this corresponds to 100 more (62 more to 139 more) stone-free participants per 1000 with PCNL (an absolute difference of 10%, where the predefined MCID was 5%). Major complications PCNL compared with RIRS probably has little or no effect on major complications (RR 0.86, 95% CI 0.59 to 1.25; I2 = 15%; 34 studies, 3649 participants; moderate-certainty evidence). Based on 31 complications in the RIRS group, this corresponds to six fewer (13 fewer to six more) major complications per 1000 with PCNL (an absolute difference of 0.6%, where the predefined MCID was 2%). Need for secondary interventions PCNL compared with RIRS may reduce the need for secondary interventions (RR 0.31, 95% CI 0.17 to 0.55; I2 = 61%; 21 studies, 2005 participants; low-certainty evidence). Based on 222 secondary interventions in the RIRS group, this corresponds to 153 fewer (185 fewer to 100 fewer) secondary interventions per 1000 with PCNL (an absolute difference of 15.3%, where the predefined MCID was 5%). Unplanned medical visits No studies reported unplanned medical visits. Length of hospital stay PCNL compared with RIRS may extend length of hospital stay (mean difference 1.04 days more, 95% CI 0.27 more to 1.81 more; I2 = 100%; 26 studies, 2804 participants; low-certainty evidence). This effect size is greater than the predefined MCID of one day. Ureteral stricture or injury PCNL compared with RIRS may have little or no effect on the occurrence of ureteral strictures (RR 0.93, 95% CI 0.39 to 2.21; I2 = 0%; 13 studies, 1574 participants; low-certainty evidence). Based on 14 ureteral strictures in the RIRS group, this corresponds to one fewer (nine fewer to 17 more) ureteral strictures per 1000 with PCNL (an absolute difference of 0.1%, where the predefined MCID was 2%). Quality of life No studies reported quality of life. AUTHORS' CONCLUSIONS Based on a large body of evidence from 42 trials, we found that PCNL compared with RIRS may improve stone-free rates and may reduce the need for secondary interventions, but probably has little or no effect on major complications. PCNL compared with RIRS may have little or no effect on ureteral stricture rates and may increase length of hospital stay. We found no evidence on unplanned medical visits or participant quality of life. Because of the considerable shortcomings of the included trials, the evidence for most outcomes was of low certainty. Access size for PCNL was less than 24 Fr in most studies that provided this information. We expect the findings of this review to be helpful for shared decision-making about management choices for individuals with renal stones.
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Affiliation(s)
- Leah Soderberg
- Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Onuralp Ergun
- Urology Section, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Maylynn Ding
- School of Medicine, McMaster University, Hamilton, Canada
| | - Robin Parker
- W.K. Kellogg Health Sciences Library, Dalhousie University, Halifax, Canada
| | - Michael S Borofsky
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Vernon Pais
- Department of Surgery, Dartmouth Medical School, Lebanon, NH, USA
| | - Philipp Dahm
- Urology Section, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, USA
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Angerri O, Gracia S, Rousaud F, Kanashiro A, Emiliani E. Entering into 2.0 cystinuric management with a medical digital tool to monitor urine pH: a prospective, randomized study. Actas Urol Esp 2023; 47:560-565. [PMID: 37086842 DOI: 10.1016/j.acuroe.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 04/24/2023]
Abstract
BACKGROUND AND OBJECTIVES Individuals with cystinuria can experiment recurrent lithiasis events due to the relative insolubility of cystine at physiological urine pH, resulting in renal function decline. The Lit-Control® pH Meter is a medical device that accurately allows urine pH self-monitoring. The main objective of this study was to compare the usability of the Lit-Control® pH Meter with the reactive strips for self-monitoring of urinary pH at home by patients with cystinuria, and their overall satisfaction with each tool. PATIENTS AND METHODS We included 28 patients (9 females and 19 males, age 19-76 years), who were randomly assigned to monitor their urine pH with reactive strips (n = 17) or the Lit-Control® pH-meter (n = 11). RESULTS After six months of use, the satisfaction with the two methods was similarly high, but the patients rated (0-10 scale) the pH meter better in terms of ease of learning (mean ± SD, 8.11 ± 0.60 vs. 7.06 ± 1.18; P = 0.038), ease to prepare (8.22 ± 0.67 vs. 7.25 ± 1.18; P = 0.034), and ease of use (8.22 ± 0.67 vs. 7.25 ± 1.39; P = 0.062). Overall, patients did not reach the alkalinization goals (pH between 7.0 and 8.0). CONCLUSIONS The Lit-Control® pH Meter demonstrated to be an easy-to-use device that can facilitate urinary pH control by cystinuric patients. A prospective study is warranted to assess the correlation between urine pH monitoring, a treat to target approach, and the recurrence of cystine stones.
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Affiliation(s)
- O Angerri
- Department of Urology, Fundació Puigvert, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - S Gracia
- Department of Laboratory and Biochemistry, Fundació Puigvert, Universitat Autònoma de Barcelona, Spain
| | - F Rousaud
- Department of Urology, Fundació Puigvert, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - A Kanashiro
- Department of Urology, Fundació Puigvert, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - E Emiliani
- Department of Urology, Fundació Puigvert, Universitat Autònoma de Barcelona, Barcelona, Spain
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Emiliani E, Sanz-Gómez I, Somani B, Tailly T, Castellani D, Traxer O, Yuen-Chun Teoh J, Chew B, Ong Lay Keat W, Chai CA, Bin-Hamri S, Shrestha A, Soehabali B, Angerri O, Gauhar V. Does gender influence retrograde intrarenal surgery (RIRS) outcomes? Data from the Flexible Ureteroscopy Outcomes Registry (FLEXOR). Actas Urol Esp 2023; 47:581-587. [PMID: 37369300 DOI: 10.1016/j.acuroe.2023.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 06/29/2023]
Abstract
INTRODUCTION AND OBJECTIVES As well established flexible ureteroscopy (RIRS). There is still no evidence if gender can have any influence on the outcomes and complication when performing. This study aims to evaluate the role that gender has in performing flexible ureteroscopy from a large series of patients. METHODS This study retrospectively analyzed patients who underwent RIRS for renal stones from January 2018 to August 2021 within the multicentric FLEXOR registry. Demographics, stone characteristics, perioperative findings, results and complications were analyzed and compared between gender groups. RESULTS A total of 6669 patients were included, 66.1% were male and 33.9% were female. Stone characteristics was comparable between groups. Female patients had significant higher fever and positive urine culture rates (12% vs. 8% and 37% vs. 34%). Also, females had a slight longer hospital stay (3.8 vs. 3.5 days; P < 0.001) and more residual fragments after the procedure (23.03% vs. 20.97 (P = 0.032). Overall complications were slightly significantly higher in women (15.74% vs. 14% (P = 0.042)) mainly at the expense of fever rates (6.9% vs. 5.7%) whereas the risk of sepsis was similar in both groups. A multivariate analysis showed that larger stone size, multiple and lower pole stones seem to have a negative impact in the incidence of residual stones and complications. CONCLUSION Our real life global study reflects that female gender may have a correlation with a slightly increased residual fragment rate and overall low grade complications. However, women can safely be treated with RIRS with no increased the rate of sepsis with appropriate care.
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Affiliation(s)
- E Emiliani
- Servicio de Urología, Fundación Puigvert, Universidad Autónoma de Barcelona, Barcelona, Spain.
| | - I Sanz-Gómez
- Servicio de Urología, Fundación Puigvert, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - B Somani
- Servicio de Urología, Hospital Universitario de Southampton, NHS Trust, Southampton, United Kingdom
| | - T Tailly
- Servicio de Urología, Hospital Universitario de Gante, Gante, Belgium
| | - D Castellani
- Servicio de Urología, Azienda Ospedaliero-Universitaria delle Marche, Universidad Politécnica Marche, Ancona, Italy
| | - O Traxer
- Servicio de Urología, Universidad de La Sorbona, Hospital Tenon (AP-HP), París, France
| | - J Yuen-Chun Teoh
- Servicio de Cirugía, Clínica de Urología S.H. Ho, Facultad de Medicina, Universidad China de Hong Kong, Hong Kong, China
| | - B Chew
- Departamento de Urología, Universidad de British Columbia, Vancouver, Canada
| | - W Ong Lay Keat
- Servicio de Urología, Hospital General de Penang, Georgetown, Malaysia
| | - C A Chai
- Departamento de Urología, Universidad de Malaya, Kuala Lumpur, Malaysia
| | - Saeed Bin-Hamri
- Servicio de Urología, King Abdulaziz National Guard Medical City, Riad, Saudi Arabia
| | - A Shrestha
- Servicio de Urología, Hospital Bir, Academia Nacional de Ciencias Médicas, Katmandú, Nepal
| | - B Soehabali
- Departamento de Urología, Facultad de Medicina, Universidad de Mulawarman, Hospital Abdul Wahab Sjahranie, Samarinda, Indonesia
| | - O Angerri
- Servicio de Urología, Fundación Puigvert, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - V Gauhar
- Servicio de Urología, Hospital General Ng Teng Fong, Singapur, Singapore
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Jorg T, Halfmann MC, Rölz N, Mager R, Pinto Dos Santos D, Düber C, Mildenberger P, Müller L. Structured reporting in radiology enables epidemiological analysis through data mining: urolithiasis as a use case. Abdom Radiol (NY) 2023; 48:3520-3529. [PMID: 37466646 PMCID: PMC10556151 DOI: 10.1007/s00261-023-04006-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/20/2023]
Abstract
PURPOSE To investigate the epidemiology and distribution of disease characteristics of urolithiasis by data mining structured radiology reports. METHODS The content of structured radiology reports of 2028 urolithiasis CTs was extracted from the department's structured reporting (SR) platform. The investigated cohort represented the full spectrum of a tertiary care center, including mostly symptomatic outpatients as well as inpatients. The prevalences of urolithiasis in general and of nephro- and ureterolithasis were calculated. The distributions of age, sex, calculus size, density and location, and the number of ureteral and renal calculi were calculated. For ureterolithiasis, the impact of calculus characteristics on the degree of possible obstructive uropathy was calculated. RESULTS The prevalence of urolithiasis in the investigated cohort was 72%. Of those patients, 25% had nephrolithiasis, 40% ureterolithiasis, and 35% combined nephro- and ureterolithiasis. The sex distribution was 2.3:1 (M:F). The median patient age was 50 years (IQR 36-62). The median number of calculi per patient was 1. The median size of calculi was 4 mm, and the median density was 734 HU. Of the patients who suffered from ureterolithiasis, 81% showed obstructive uropathy, with 2nd-degree uropathy being the most common. Calculus characteristics showed no impact on the degree of obstructive uropathy. CONCLUSION SR-based data mining is a simple method by which to obtain epidemiologic data and distributions of disease characteristics, for the investigated cohort of urolithiasis patients. The added information can be useful for multiple purposes, such as clinical quality assurance, radiation protection, and scientific or economic investigations. To benefit from these, the consistent use of SR is mandatory. However, in clinical routine SR usage can be elaborate and requires radiologists to adapt.
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Affiliation(s)
- Tobias Jorg
- Department of Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckst. 1, 55131, Mainz, Germany.
| | - Moritz C Halfmann
- Department of Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckst. 1, 55131, Mainz, Germany
| | - Niklas Rölz
- Department of Urology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - René Mager
- Department of Urology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Daniel Pinto Dos Santos
- Department of Radiology, University Hospital of Cologne, Cologne, Germany
- Department of Radiology, University Hospital of Frankfurt, Frankfurt, Germany
| | - Christoph Düber
- Department of Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckst. 1, 55131, Mainz, Germany
| | - Peter Mildenberger
- Department of Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckst. 1, 55131, Mainz, Germany
| | - Lukas Müller
- Department of Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckst. 1, 55131, Mainz, Germany
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Sharma S, Sabale V, Satav V, Mulay A. To Evaluate the Impact of Ho:YAG Laser Lithotripsy for Ureteroscopic Removal of Proximal and Distal Ureter Calculi. Cureus 2023; 15:e47498. [PMID: 38022108 PMCID: PMC10663642 DOI: 10.7759/cureus.47498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Background Urinary calculus illness is a prevalent clinical issue encountered by the medical community, particularly urologists, in contemporary society. Laser technologies have been widely accepted as standard modalities for lithotripsy applications. Using the Ho:YAG laser has expanded the range of applications for ureteroscopic stone management (URS), enabling the treatment of bigger stones in all regions of the upper urinary tract. It is noteworthy that ureteroscopy (URS) demonstrates superior rates of stone clearance for distal stones, regardless of their size, with a success rate of 94.5% compared to 74% for other treatment modalities. Significant variation exists in the reported results and problems associated with Ho:YAG laser lithotripsy across different trials, as documented in the literature. The procedure's outcome might vary based on factors such as the size of the stone, the length of impaction, the presence of ureteral damage and granulation, the kind and size of endoscopes used, and the specific energy settings employed by various operators. The present study aimed to evaluate the impact of Ho:YAG laser lithotripsy for ureteroscopic removal of proximal and distal ureter calculi. Methods This prospective observational study was carried out in the Department of Urology at DY Patil Medical College and Hospital, Pune, from March 2021 to March 2023. Patients diagnosed with a case of ureteric stone who opted for URSL during the study period were included. A total of 50 patients who underwent URSL in the urology department were included in this study. These were then grouped into those with proximal ureteral stones and distal ureteral stones. (25 each) Results The study observed that patients diagnosed with proximal ureteral stones had bigger calculi, with a mean stone size of 15mm, in comparison to patients with distal ureteral stones, with a mean stone size of 10mm (P=0.010). The stone burden was significantly higher for proximal ureteral stone patients than those with distal ureteric stones (P=0.010). The average duration of the operating procedure for upper ureter stones was 70 minutes, but for lower stones, the mean operative time was 45 minutes (P<0.001). No statistical significance was seen in the median age of patients between the two groups (P=0.89). The maximum number of cases in the upper stone group were in the age group of 16-30 years, and in the lower stone group was in the age group of 31-45 years. The prevalence of DJ stents at the time of presentation was higher among patients diagnosed with proximal ureteric stones than those with distal ureteric stones, with rates of 28% and 20%, respectively (P=0.508). Full fragmentation was successfully accomplished in all patients within the distal calculus group, accounting for 100% of the cases. At the same time, for proximal ureteric stones, a single laser lithotripsy session resulted in 92% (23 patients) achieving a stone-free status after two weeks. Conclusion The study observed that stone size, burden, and procedure duration were statistically significant among other criteria. Mean age, stone HU, prior DJ stent, and stone-free rate were statistically insignificant. The procedure indicated that Ho:YAG laser lithotripsy has efficacy in treating both proximal and distal ureteral stones, with minimal intraoperative and postoperative complications. None of the complications were due to laser energy.
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Affiliation(s)
- Supran Sharma
- Urology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
| | - Vilas Sabale
- Urology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
| | - Vikram Satav
- Urology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
| | - Abhirudra Mulay
- Urology, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Pune, IND
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Millet-Herrera JL, Méndez-Molina R, Milke-Garcia AM, Cruz-May TN, Mendez-Dominguez N, Flores-Tapia JP. Calcium Carbonate Urolithiasis in a Pediatric Patient: A Case Report. Cureus 2023; 15:e47873. [PMID: 38021740 PMCID: PMC10681330 DOI: 10.7759/cureus.47873] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2023] [Indexed: 12/01/2023] Open
Abstract
Urinary stones composed of calcium carbonate are extremely rare, accounting for 0.01%-1.4% of urolithiasis (UL) cases. Urolithiasis is an infrequent condition in the pediatric population worldwide and in Mexico; nevertheless, the incidence in the Yucatán Peninsula is higher than that reported in other areas of Mexico and the world. Urolithiasis is the second most common urinary disease among pediatrics in the Yucatán Peninsula, which makes it an endemic region for this disease. We describe the case of a five-year-old male from the southeast region of Mexico who presented with signs and symptoms of urinary tract infection (UTI) and was diagnosed with bilateral staghorn stones of calcium carbonate, successfully treated by mini endoscopic combined intra-renal surgery, and dietary adjustments to prevent recurrence.
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Affiliation(s)
| | | | | | - Teresa N Cruz-May
- Applied Physics, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Merida, MEX
| | - Nina Mendez-Dominguez
- Research, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Merida, MEX
| | - Juan P Flores-Tapia
- Nephrology, Urology and Renal Transplant, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Merida, MEX
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Sahlén K, Lönnemark O, Lönnemark M, Wernroth L, Magnusson A. Does the kidney actually swell during an acute urinary tract obstruction? Acta Radiol 2023; 64:2820-2827. [PMID: 37606531 DOI: 10.1177/02841851231190618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
BACKGROUND The appearance of renal swelling during an acute obstruction of the urinary tract could be caused by hydronephrosis or an increase of the parenchymal volume. To the best of our knowledge no studies have been performed regarding renal parenchymal volume change during an acute urinary tract obstruction. PURPOSE To investigate the change in renal parenchymal volume during an acute urinary tract obstruction and to correlate any such volume change to the degree of secondary signs of obstruction. MATERIAL AND METHODS In total, 20 patients with obstructive ureterolithiasis were retrospectively and randomly included. Two observers measured the parenchymal volume of the obstructed and the contralateral kidney in CT examinations before, during, and after obstruction. Hydronephrosis, hydroureter, perirenal stranding, and thickening of the renal fascia were graded and correlated to volume change. RESULTS A decreased volume was noted after obstruction in the obstructed kidneys (-24%) (P < 0.0001) and in the contralateral kidneys (-5%) (P = 0.0110) with a positive correlation of change in volume (P = 0.011). The volume of the obstructed kidneys was larger than the contralateral kidneys during obstruction (P < 0.0001) but not after obstruction (P = 0.559). No significant difference in volume was found before compared to after obstruction. Secondary signs of obstruction did not correlate to volume change. CONCLUSION The parenchymal volume increases in the obstructed kidneys as well as in the contralateral kidneys during obstruction. The increase in volume was larger in the obstructed kidneys compared to the contralateral kidneys. After obstruction the kidneys regained their original volume. Secondary signs did not correlate to volume change.
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Affiliation(s)
- Klara Sahlén
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- *Shared first authorship
| | - Olle Lönnemark
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- *Shared first authorship
| | - Maria Lönnemark
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
| | - Lisa Wernroth
- Department of Medical Sciences, Molecular Epidemiology, Uppsala University, Uppsala, Sweden
| | - Anders Magnusson
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
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Peyrottes A, Chicaud M, Fourniol C, Doizi S, Timsit MO, Méjean A, Yonneau L, Lebret T, Audenet F, Traxer O, Panthier F. Clinical Reproducibility of the Stone Volume Measurement: A "Kidney Stone Calculator" Study. J Clin Med 2023; 12:6274. [PMID: 37834918 PMCID: PMC10573675 DOI: 10.3390/jcm12196274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND An accurate estimation of the stone burden is the key factor for predicting retrograde intra-renal surgical outcomes. Volumetric calculations better stratify stone burden than linear measurements. We developed a free software to assess the stone volume and estimate the lithotrity duration according to 3D-segmented stone volumes, namely the Kidney Stone Calculator (KSC). The present study aimed to validate the KSC's reproducibility in clinical cases evaluating its inter-observer and intra-observer correlations. METHODS Fifty patients that harbored renal stones were retrospectively selected from a prospective cohort. For each patient, three urologists with different experience levels in stone management made five measurements of the stone volume on non-contrast-enhanced computed tomography (NCCT) images using the KSC. RESULTS the overall inter-observer correlation (Kendall's concordance coefficient) was 0.99 (p < 0.0001). All three paired analyses of the inter-observer reproducibility were superior to 0.8. The intra-observer variation coefficients varied from 4% to 6%, and Kendall's intra-observer concordance coefficient was found to be superior to 0.98 (p < 0.0001) for each participant. Subgroup analyses showed that the segmentation of complex stones seems to be less reproductible. CONCLUSIONS The Kidney Stone Calculator is a reliable tool for the stone burden estimation. Its extension for calculating the lithotrity duration is of major interest and could help the practitioner in surgical planning.
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Affiliation(s)
- Arthur Peyrottes
- GRC n°20, Groupe de Recherche Clinique Sur La Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France; (A.P.); (M.C.); (S.D.); (O.T.)
- Service D’Urologie, Hôpital Européen Georges Pompidou, AP-HP.Centre, Université Paris-Cité, 20 rue Leblanc, 75015 Paris, France; (C.F.); (M.-O.T.); (A.M.); (F.A.)
| | - Marie Chicaud
- GRC n°20, Groupe de Recherche Clinique Sur La Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France; (A.P.); (M.C.); (S.D.); (O.T.)
- Service D’Urologie, Hôpital Tenon, AP-HP, Sorbonne Université, 4 rue de la Chine, 75020 Paris, France
- PIMM Laboratory, UMR 8006 CNRS-Arts Et Métiers ParisTech, 151 bd de l’Hôpital, 75013 Paris, France
- Service d’Urologie, CHU de Limoges, 2 Avenue Martin Luther King, 87000 Limoges, France
| | - Cyril Fourniol
- Service D’Urologie, Hôpital Européen Georges Pompidou, AP-HP.Centre, Université Paris-Cité, 20 rue Leblanc, 75015 Paris, France; (C.F.); (M.-O.T.); (A.M.); (F.A.)
| | - Steeve Doizi
- GRC n°20, Groupe de Recherche Clinique Sur La Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France; (A.P.); (M.C.); (S.D.); (O.T.)
- Service D’Urologie, Hôpital Tenon, AP-HP, Sorbonne Université, 4 rue de la Chine, 75020 Paris, France
- PIMM Laboratory, UMR 8006 CNRS-Arts Et Métiers ParisTech, 151 bd de l’Hôpital, 75013 Paris, France
| | - Marc-Olivier Timsit
- Service D’Urologie, Hôpital Européen Georges Pompidou, AP-HP.Centre, Université Paris-Cité, 20 rue Leblanc, 75015 Paris, France; (C.F.); (M.-O.T.); (A.M.); (F.A.)
| | - Arnaud Méjean
- Service D’Urologie, Hôpital Européen Georges Pompidou, AP-HP.Centre, Université Paris-Cité, 20 rue Leblanc, 75015 Paris, France; (C.F.); (M.-O.T.); (A.M.); (F.A.)
| | - Laurent Yonneau
- Service d’Urologie, Hôpital Foch-Université Paris Saclay-UVSQ, 40 rue Worth, 92150 Suresnes, France; (L.Y.); (T.L.)
| | - Thierry Lebret
- Service d’Urologie, Hôpital Foch-Université Paris Saclay-UVSQ, 40 rue Worth, 92150 Suresnes, France; (L.Y.); (T.L.)
| | - François Audenet
- Service D’Urologie, Hôpital Européen Georges Pompidou, AP-HP.Centre, Université Paris-Cité, 20 rue Leblanc, 75015 Paris, France; (C.F.); (M.-O.T.); (A.M.); (F.A.)
| | - Olivier Traxer
- GRC n°20, Groupe de Recherche Clinique Sur La Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France; (A.P.); (M.C.); (S.D.); (O.T.)
- Service D’Urologie, Hôpital Tenon, AP-HP, Sorbonne Université, 4 rue de la Chine, 75020 Paris, France
- PIMM Laboratory, UMR 8006 CNRS-Arts Et Métiers ParisTech, 151 bd de l’Hôpital, 75013 Paris, France
| | - Frederic Panthier
- GRC n°20, Groupe de Recherche Clinique Sur La Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France; (A.P.); (M.C.); (S.D.); (O.T.)
- Service D’Urologie, Hôpital Européen Georges Pompidou, AP-HP.Centre, Université Paris-Cité, 20 rue Leblanc, 75015 Paris, France; (C.F.); (M.-O.T.); (A.M.); (F.A.)
- Service D’Urologie, Hôpital Tenon, AP-HP, Sorbonne Université, 4 rue de la Chine, 75020 Paris, France
- PIMM Laboratory, UMR 8006 CNRS-Arts Et Métiers ParisTech, 151 bd de l’Hôpital, 75013 Paris, France
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Shee K, Chan C, Yang H, Sui W, Bowman M, Hamouche F, Charondo LB, Ho S, Chi T, Stoller ML. Voided volume may not impact stone outcomes: Review of a large institutional nephrolithiasis cohort. BJUI COMPASS 2023; 4:556-561. [PMID: 37636214 PMCID: PMC10447213 DOI: 10.1002/bco2.216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/06/2022] [Accepted: 12/19/2022] [Indexed: 08/29/2023] Open
Abstract
Background Urologic guidelines universally recommend increasing fluid intake for kidney stone prevention. Increased voided volume is thought to help reduce stone recurrence and severity, but supporting evidence is limited. Patients and Methods Nephrolithiasis outcomes and 24-h urine data for patients from the Registry for Stones of the Kidney and Ureter (ReSKU), a registry of nephrolithiasis patients collected between 2015 and 2020, were retrospectively analysed. Outcome was stone events, either an office visit where a patient reports symptomatic passage of stones or surgery for stone removal. Results We identified 450 stone patients with 24-h urine and kidney stone outcome data. There was no significant difference in 24-h voided volume between patients with one stone event and patients with two or more stone events. On multivariable logistic regression, after controlling for age, gender, BMI, and 24-h sodium and creatinine per kilogram, no significant associations were found between voided volume and stone events. There was a statistically significant negative correlation noted between voided volume and stone events in calcium oxalate dihydrate stone formers (Spearman R = -0.42, p = 0.04), but not others. Conclusions Twenty-four-hour voided volume was not associated with stone events in a large institutional cohort, and subset analysis reveals that some stone formers may benefit more from increased voided volume than others; identifying such patients represents a novel precision medicine opportunity.
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Affiliation(s)
- Kevin Shee
- Department of UrologyUCSFSan FranciscoCaliforniaUSA
| | - Carter Chan
- Department of UrologyUCSFSan FranciscoCaliforniaUSA
| | - Heiko Yang
- Department of UrologyUCSFSan FranciscoCaliforniaUSA
| | - Wilson Sui
- Department of UrologyUCSFSan FranciscoCaliforniaUSA
| | - Max Bowman
- Department of UrologyUCSFSan FranciscoCaliforniaUSA
| | | | | | - Sunita Ho
- Department of UrologyUCSFSan FranciscoCaliforniaUSA
| | - Thomas Chi
- Department of UrologyUCSFSan FranciscoCaliforniaUSA
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Peng Y, Wang L, Jin J, Jiang Y, Xu Q, Yang L, Liu J. Flexible ureteroscopy under local anesthesia for stone management: initial exploration and two-year experience. Postgrad Med 2023; 135:755-762. [PMID: 37773585 DOI: 10.1080/00325481.2023.2265991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 09/28/2023] [Indexed: 10/01/2023]
Abstract
BACKGROUND Flexible ureteroscopy (f-URS) is a minimally invasive surgical technique used for treating urinary tract stones. While general anesthesia (GA) is the standard method used, it comes with risks. Local anesthesia (LA) is a safer and more cost-effective alternative to GA, and its use in f-URS could potentially reduce patients' risks and increase accessibility to treatment. This study aims to investigate the feasibility, safety, and efficacy of using LA for f-URS in treating stones, as an initial experience in the diagnosis related group (DRG) era of China. METHODS Patients who met the inclusion and exclusion criteria and were continuously included in the study Between 2021 and 2023. We analyzed the stone free status, postoperative complication rate, hospitalization costs, and presented key points of the procedure performed under LA that we had summarized over the past two years. RESULTS A study of 614 patients undergoing f-URS under LA for urinary stones in our hospital showed 83.4% stone-free rate with a mean operative time of 44.12 ± 16.63 minutes; 18 patients experienced fever postoperatively, and 12 had ureteral injuries. No severe complication was reported. The cost of LA was found to be only 1.7% of the DRG payment, which is around $40. The highest VAS scores were observed during the sheath insertion, with STAI scores decreasing during and after surgery. CONCLUSIONS The study revealed that f-URS administered under LA was a well-tolerated, efficient, safe, and economical procedure. In the DRG era, this new anesthetic option for f-URS provides urologists with a more cost-effective alternative.
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Affiliation(s)
- Yueqiang Peng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Linfeng Wang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiajia Jin
- Psychological department, Chongqing University Cancer Hospital, Chongqing, China
| | - Yu Jiang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qiao Xu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Yang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiayu Liu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Zhang J, Li K, Chen H, Hu X, Guo Z, Chen S, Zheng F, Cheng W, Mu Q, Lan Y, Chen P. Retrospective analysis of urinary tract stone composition in a Chinese ethnic minority colony based on Fourier transform infrared spectroscopy. Sci Rep 2023; 13:13453. [PMID: 37596395 PMCID: PMC10439141 DOI: 10.1038/s41598-023-40603-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023] Open
Abstract
To analyze the relationship between the composition of urinary stones and various influencing factors in the Enshi region. We used FT-IR to examine the composition of 1092 stone samples. Combined with the relevant clinical materials, the data were analyzed using both one-dimensional statistical methods and multivariate statistical methods. The study included 1092 stone samples, classified as follows: 457 (41.8%) with a single component, 453 (41.5%) with two components, 149 (13.6%) with three components, and 33 (3.0%) with four components. Stones were categorized into five types: Calcium Oxalate (CaOx) (76.4%), carbapatite (CaP) (9.3%), Struvite (ST) (8.3%), Uric Acid (UA) (4.9%), and Others (1.0%). Age, gender, urinary tract infection (UTI), family history of urinary stones (FH), hyperuricemia (HUA) and stone location were significantly associated with stone type. Logistic regression revealed that females and UTI were relative risk factors for predicting CaP and ST, while FH and HUA were relative risk factors for predicting UA. Our study indicates that the overall composition of urinary tract stones in the Enshi region is consistent with that of the entire China. Additionally, the predisposing factors for stone formation vary in terms of gender, age, FH, UTI, hyperuricemia HUA, and stone location.
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Affiliation(s)
- Junfeng Zhang
- Department of Urology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Kailing Li
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Hongbo Chen
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Xiaohui Hu
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Zicheng Guo
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Su Chen
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Fu Zheng
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Wusong Cheng
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Qian Mu
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China
| | - Yong Lan
- Department of Urology, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No. 158 Wuyang Avenue, Enshi City, 445000, Hubei, China.
| | - Peng Chen
- Department of Urology, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, China.
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49
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Goldfarb DS, Modersitzki F, Asplin JR, Nazzal L. Effect of a high-citrate beverage on urine chemistry in patients with calcium kidney stones. Urolithiasis 2023; 51:96. [PMID: 37479949 DOI: 10.1007/s00240-023-01468-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/05/2023] [Indexed: 07/23/2023]
Abstract
A well-accepted strategy to prevent kidney stones is to increase urine volume by increasing oral intake of fluids, especially water, to lower supersaturation of the relevant, relatively insoluble salts, and thereby lower the risk of precipitation. Randomized controlled trials have shown that this strategy works. It is inexpensive, safe, and intuitively attractive to patients. However, although any beverage can increase urine volume, and citrus juices can increase urine citrate content and pH, no beverage other than water has been clearly shown by randomized controlled trial to prevent kidney stones. We designed an innovative, palatable, low-calorie, high alkali citrate beverage to prevent kidney stones, called Moonstone. One packet of Moonstone powder, mixed in 500 ml of water, contains 24.5 meq of alkali citrate. We administered one packet twice a day to ten calcium stone formers. Moonstone resulted in an increase in mean 24-h urine citrate and urine pH, and a decrease in supersaturation of calcium oxalate in calcium stone formers compared to an equal volume of water. These changes, comparable to those seen in a prior study of a similar amount of (potassium-magnesium) citrate, will likely be associated with a clinically meaningful reduction in kidney stone burden in patients with calcium stones. The effect to increase urine pH would also be expected to benefit patients with uric acid and cystine stones, groups that we hope to study in a subsequent study. The study preparation was well tolerated and was selected as a preferred preventative strategy by about half the participants. Moonstone is an alternative, over-the-counter therapy for kidney stone prevention.
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Affiliation(s)
- David S Goldfarb
- Nephrology Division, NYU Langone Health and NYU Grossman School of Medicine, Nephrology Section/111G, 423 E. 23 St., New York, NY, 10010, USA.
| | - Frank Modersitzki
- Nephrology Division, NYU Langone Health and NYU Grossman School of Medicine, Nephrology Section/111G, 423 E. 23 St., New York, NY, 10010, USA
| | | | - Lama Nazzal
- Nephrology Division, NYU Langone Health and NYU Grossman School of Medicine, Nephrology Section/111G, 423 E. 23 St., New York, NY, 10010, USA
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50
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Adenipekun A, Gaballa N, Darrad M. Ureteric Calculus in a Left Complete Duplex System Masquerading as an Impacted Stone: A Case Report and Literature Review. Cureus 2023; 15:e41489. [PMID: 37551254 PMCID: PMC10404340 DOI: 10.7759/cureus.41489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2023] [Indexed: 08/09/2023] Open
Abstract
Ureteric calculi are common urological problems. However, the management of stone disease varies considerably with patient choice and anatomy. There are few reports about ureteral calculi in patients with unilateral complete duplex kidneys managed by ureteroscopy. We hope to increase the awareness of urologists when investigating patients with similar symptoms. We present the case of a 28-year-old man with recurring left flank pain. Non-contrast computed tomography (CT) scans of the kidney showed an impacted left vesicoureteric junction stone measuring 6 mm. Intra-operatively, a stone in the left duplex system was discovered. He was managed with ureteroscopy, laser fragmentation, and the insertion of ureteric stents. The case demonstrates the complexity of managing ureteric stones in a complete duplex kidney. We highlighted the diagnostic limitations of non-contrast scans in identifying duplex systems. It is important to consider contrast CT scans in patients with unusually persistent symptoms to outline the anatomy of the kidney and collecting systems.
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Affiliation(s)
- Ayokunle Adenipekun
- Urology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, GBR
| | - Nader Gaballa
- Urology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, GBR
| | - Maitrey Darrad
- Urology, University Hospitals Birmingham NHS Foundation Trust, Birmimgham, GBR
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