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Shigemura T, Kamikawa K, Yamamoto Y, Murata Y. Sex-based differences in neck selectivity in total hip arthroplasty using a modular femoral neck system. Int J Artif Organs 2024; 47:290-298. [PMID: 38584296 DOI: 10.1177/03913988241243021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
BACKGROUND Dislocation is a major complication of total hip arthroplasty (THA). The modular femoral neck system provides practical advantages by allowing adjustment of neck version and length in the presence of intraoperative instability. Anatomical studies have identified morphological differences in the hip joint between men and women. Despite sex-based differences in hip morphology, it remains unclear whether such differences affect neck selectivity in THA using a modular neck system and whether this approach achieves anatomical reconstruction, thereby reducing complications such as dislocation. This study aimed to investigate gender differences in neck selectivity in THA with the modular neck system and assess the clinical impact of the modular neck system. METHODS A total of 163 THAs using a modular neck system were included in this study. Data on the type of modular neck and intraoperative range of motion (ROM) were retrieved from patient records. Pre- and post-operative leg length differences (LLD) were examined as part of the radiographic assessment. Dislocation was investigated as a postoperative complication. RESULTS Neck selectivity did not significantly differ between men and women. The comparison of pre- and post-operative LLD revealed a tendency for varus necks to improve LLD more than version-controlled necks. Furthermore, no significant correlation was found between intraoperative ROM and neck selectivity, or postoperative dislocation and neck selectivity. CONCLUSIONS This study on THA with a modular neck system provided valuable insights into sex-based differences in neck selectivity and highlighted the potential benefits of the modular neck system in addressing LLD and preventing postoperative dislocation.
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Shigemura T, Yamamoto Y, Murata Y. Closed reduction of dislocated hip prosthesis using a traction table. Int J Artif Organs 2024; 47:299-302. [PMID: 38515386 DOI: 10.1177/03913988241234221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
This article describes three cases in which a dislocated hip prosthesis was reduced by a new reduction technique - that we previously described - using traction table. The dissociation of a prosthesis is a rare but serious complication of closed reduction manoeuvre. The new reduction manoeuvre using a traction table may be a good option to avoid dissociation of the prosthesis during closed reduction for treatment of dislocation after total hip arthroplasty.
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Affiliation(s)
| | - Yohei Yamamoto
- Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
| | - Yasuaki Murata
- Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
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Kitamura T, Shigemura T, Yamamoto Y, Murata Y. Effective Management of Sacral Stress Fractures in Gastric Cancer: Iliosacral Screw Fixation Following a Type 3 Hemipelvectomy. Cureus 2024; 16:e56435. [PMID: 38638739 PMCID: PMC11024781 DOI: 10.7759/cureus.56435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2024] [Indexed: 04/20/2024] Open
Abstract
Metastatic pelvic tumors pose a significant challenge in oncologic orthopedics due to their complex management and the high potential for postoperative complications. This case study discusses a 75-year-old male with a sacral stress fracture following a type 3 internal hemipelvectomy for a metastatic lesion from gastric cancer in the left pubic bone. Initial conservative treatments failed to yield satisfactory improvement, leading to surgical intervention. Open reduction and internal fixation with an iliosacral screw, despite complications, significantly alleviated pain and improved mobility. This case underscores the difficulty in diagnosing sacral stress fractures versus metastatic lesions and highlights the effectiveness of iliosacral screw fixation in managing postoperative sacral stress fractures. It emphasizes the procedure's role in providing early pain relief and enhancing daily activity levels. Additionally, it points out the importance of addressing altered bone metabolism in the postoperative care of patients with metastatic pelvic tumors. This contributes to the literature by stressing the incidence of sacral stress fractures as a critical, though often overlooked, complication and demonstrating the benefits of iliosacral screw fixation in such scenarios for better recovery and quality of life.
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Affiliation(s)
- Takaki Kitamura
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, JPN
| | - Tomonori Shigemura
- Department of Orthopaedics, Teikyo University Chiba Medical Center, Ichihara, JPN
| | - Yohei Yamamoto
- Department of Orthopaedics, Teikyo University Chiba Medical Center, Ichihara, JPN
| | - Yasuaki Murata
- Department of Orthopaedics, Teikyo University Chiba Medical Center, Ichihara, JPN
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Shigemura T, Yamamoto Y, Maruyama J, Kitamura T, Nakane R, Kawaguchi H, Iida D, Murata Y. Efficacy and safety of pararectus approach for the treatment of acetabular fractures: A systematic review and meta-analysis. Orthop Traumatol Surg Res 2023; 109:103498. [PMID: 36460292 DOI: 10.1016/j.otsr.2022.103498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 08/31/2022] [Accepted: 10/04/2022] [Indexed: 12/02/2022]
Abstract
BACKGROUND The pararectus (PR) approach combines the advantages of the second window of the ilioinguinal approach and the medial view of the modified Stoppa approach. However, it is unclear whether the PR approach is more effective or safer than the other approaches, as few clinical studies have compared the PR approach with the other approaches. The aim of this study was to provide a systematic review and meta-analysis comparing the PR approach with the other approaches for the treatment of acetabular fractures and to answer the following question: Are the results of the PR approach superior to those of the other approaches in terms of reduction quality, operative time, operative blood loss, complications, and clinical outcomes for treatment of acetabular fractures? PATIENTS AND METHODS A systematic literature review was conducted using relevant original studies from various databases. Pooling of data was performed using RevMan software (version 5.3, Cochrane Collaboration, Oxford, UK). A p-value<0.05 was considered to be significant. We calculated the mean differences for continuous data and odds ratio for dichotomous data with 95% confidence intervals for each outcome. Statistical heterogeneity was assessed based on I2 using the standard χ2 test. RESULTS Five studies were included in this meta-analysis. The findings demonstrated that operative blood loss was significantly lower in the PR approach than in the other approaches (p=0.04). There was no significant difference in the rate of anatomical reduction, the operative time, the rate of complications, and the rate of excellent or good clinical score between the PR approach and the other approaches. DISCUSSION The PR approach provided lower operative blood loss, although there was no significant difference in reduction quality, operative time, complications, and excellent or good clinical score between the PR approach and the other approaches. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Tomonori Shigemura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan.
| | - Yohei Yamamoto
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan
| | - Juntaro Maruyama
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Takaki Kitamura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan
| | - Ryo Nakane
- Department of Orthopaedic Surgery, Kumagaya General Hospital, 4-5-1 Nakanishi, Kumagaya, Saitama 360-8567, Japan
| | - Hiroki Kawaguchi
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan
| | - Daisuke Iida
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan
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Murata Y, Shinojima T, Nakahira Y, Hamada M, Sasaki A, Asakura H. Recurrent urethral tumor with neuroendocrine differentiation in a female patient after radical cystectomy for bladder cancer. IJU Case Rep 2023; 6:199-202. [PMID: 37405032 PMCID: PMC10315247 DOI: 10.1002/iju5.12581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/18/2023] [Indexed: 07/06/2023] Open
Abstract
Introduction Urethral recurrence after radical cystectomy in female patients with bladder cancer is relatively uncommon. Recurrent bladder tumors with neuroendocrine differentiation are extremely rare. Case presentation A 71-year-old female patient who underwent radical cystectomy for bladder cancer presented with vaginal bleeding 19 months postoperatively. She was diagnosed with bladder cancer urethral recurrence. Urethral tumor en-bloc resection with the anterior vaginal wall was performed by combining abdominal and vaginal approaches. Pathological examination revealed a recurrent tumor of urothelial bladder cancer containing small-cell carcinoma components. Conclusion This case is the first report of a recurrent tumor with small-cell carcinoma in the female urethra after radical cystectomy for pure urothelial carcinoma.
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Affiliation(s)
- Yasuaki Murata
- Department of UrologySaitama Medical UniversityMoroyamaSaitamaJapan
| | | | - Yoko Nakahira
- Department of UrologySaitama Medical UniversityMoroyamaSaitamaJapan
| | - Mei Hamada
- Department of PathologySaitama Medical UniversityMoroyamaSaitamaJapan
| | - Atsushi Sasaki
- Department of PathologySaitama Medical UniversityMoroyamaSaitamaJapan
| | - Hirotaka Asakura
- Department of UrologySaitama Medical UniversityMoroyamaSaitamaJapan
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Kitamura T, Shigemura T, Yamamoto Y, Murata Y. Pathological Vertebral Fracture Arising From Methotrexate-Associated Lymphoproliferative Disorder in a Patient With Systemic Lupus Erythematosus. Cureus 2023; 15:e40079. [PMID: 37425534 PMCID: PMC10326866 DOI: 10.7759/cureus.40079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2023] [Indexed: 07/11/2023] Open
Abstract
The incidence of lymphoproliferative disorders associated with methotrexate is rising in patients with rheumatoid arthritis. These disorders typically exhibit spontaneous tumor regression upon discontinuation of methotrexate therapy. Spinal lesions associated with these diseases are extremely rare. We present a case of systemic lupus erythematosus in which the patient developed lumbar spine lymphoproliferative disorders secondary to methotrexate therapy, which failed to regress despite discontinuation of the drug, ultimately leading to pathological fracture necessitating posterior spinal fixation. A 60-year-old woman had been diagnosed with systemic lupus erythematosus at the age of 55 years and had been taking prednisolone, hydroxychloroquine, and methotrexate. Throughout the course of her treatment, she experienced recurrent tumefaction and lymph node swelling in various locations. These masses and lymphadenopathy were believed to be potential complications of methotrexate-associated lymphoproliferative disorders, leading to the discontinuation of methotrexate. One month prior to cessation of methotrexate therapy, the patient presented to an orthopedic clinic with lower back pain, and T2-weighted magnetic resonance imaging revealed low signal intensity in the Th10 and L2 vertebrae, initially misdiagnosed as lumbar spinal stenosis. The patient was eventually referred to our department under suspicion of malignant pathology. Computed tomography identified a vertical fracture of the L2 vertebra, which, in conjunction with the imaging results, led to the diagnosis of pathological fracture secondary to methotrexate-associated lymphoproliferative disorder. Following admission to our department, bone biopsy and percutaneous pedicle screw fixation were performed one week later. Pathological examination confirmed the diagnosis of methotrexate-associated lymphoproliferative disorder. Given the possibility of pathological fracture in patients on methotrexate therapy experiencing severe back pain, additional imaging studies should be considered.
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Affiliation(s)
- Takaki Kitamura
- Orthopaedics, Chiba University, Graduate School of Medicine, Chiba, JPN
| | | | - Yohei Yamamoto
- Orthopaedics, Teikyo University Chiba Medical Center, Ichihara, JPN
| | - Yasuaki Murata
- Orthopaedics, Teikyo University Chiba Medical Center, Ichihara, JPN
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Ndubuisi IA, Amadi CO, Nwagu TN, Murata Y, Ogbonna JC. Non-conventional yeast strains: Unexploited resources for effective commercialization of second generation bioethanol. Biotechnol Adv 2023; 63:108100. [PMID: 36669745 DOI: 10.1016/j.biotechadv.2023.108100] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 01/13/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
The conventional yeast (Saccharomyces cerevisiae) is the most studied yeast and has been used in many important industrial productions, especially in bioethanol production from first generation feedstock (sugar and starchy biomass). However, for reduced cost and to avoid competition with food, second generation bioethanol, which is produced from lignocellulosic feedstock, is now being investigated. Production of second generation bioethanol involves pre-treatment and hydrolysis of lignocellulosic biomass to sugar monomers containing, amongst others, d-glucose and D-xylose. Intrinsically, S. cerevisiae strains lack the ability to ferment pentose sugars and genetic engineering of S. cerevisiae to inculcate the ability to ferment pentose sugars is ongoing to develop recombinant strains with the required stability and robustness for commercial second generation bioethanol production. Furthermore, pre-treatment of these lignocellulosic wastes leads to the release of inhibitory compounds which adversely affect the growth and fermentation by S. cerevisae. S. cerevisiae also lacks the ability to grow at high temperatures which favour Simultaneous Saccharification and Fermentation of substrates to bioethanol. There is, therefore, a need for robust yeast species which can co-ferment hexose and pentose sugars and can tolerate high temperatures and the inhibitory substances produced during pre-treatment and hydrolysis of lignocellulosic materials. Non-conventional yeast strains are potential solutions to these problems due to their abilities to ferment both hexose and pentose sugars, and tolerate high temperature and stress conditions encountered during ethanol production from lignocellulosic hydrolysate. This review highlights the limitations of the conventional yeast species and the potentials of non-conventional yeast strains in commercialization of second generation bioethanol.
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Affiliation(s)
| | - Chioma O Amadi
- Department of Microbiology, University of Nigeria Nsukka, Nigeria
| | - Tochukwu N Nwagu
- Department of Microbiology, University of Nigeria Nsukka, Nigeria
| | - Y Murata
- Biological Resources and Post-Harvest Division, Japan International Research Center for Agricultural Sciences, 1-1 Ohwashi, Tsukuba, Ibaraki 305-8686, Japan
| | - James C Ogbonna
- Department of Microbiology, University of Nigeria Nsukka, Nigeria.
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Yamamoto Y, Murata Y, Tanaka N, Shigemura T, Maruyama J, Nakane R, Wada Y. Mobile application for home exercise adherence in patients with knee osteoarthritis: A pilot study. Medicine (Baltimore) 2022; 101:e31181. [PMID: 36281120 PMCID: PMC9592287 DOI: 10.1097/md.0000000000031181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The adherence to home exercise is generally low despite its well-known effect on knee osteoarthritis. Therefore, we developed a home exercise application, LongLifeSupport, to provide patients with daily basic exercise videos and an automatic recording calendar. We hypothesized that this application would encourage patients to exercise and help maintain their motivation; this pilot study aimed to determine their exercise adherence rates. Using outcome measures, we also aimed to determine the effect of home exercise using this application and the factors for its continuation. METHODS Twenty patients with knee osteoarthritis were included. The participants exercised for 12 weeks. Using pre- and post-tests, we examined their satisfaction with continuation (only in the post-test), Japanese knee osteoarthritis measure score, short physical performance battery score, bilateral knee extension muscle strength, and short test battery for locomotive syndrome. Furthermore, we investigated correlations between adherence rates and pretest scores of Japanese knee osteoarthritis measure and short test battery and between pretest scores and variations in Japanese knee osteoarthritis measure and short test battery. RESULTS The mean adherence rate was 82.4%. The participants showed ease of continuation (100%) and significant improvements in the degree of knee pain, pain, and stiffness, and daily life conditions using the Japanese knee osteoarthritis measure score, total score, walk seconds, and chair stand seconds of the short physical performance battery, as well as the extension muscle strength of the right- and pain-side knee. No significant correlations were identified between the adherence rate and the pretest or variation. CONCLUSION The adherence rate to the application was over 80%. Participants with knee osteoarthritis showed almost full satisfaction, reduced pain, and improved physical ability. Therefore, the use of this application provided a safe exercise program and maintained the exercise motivation of participants. Thus, it may be useful for unsupervised home exercise.
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Affiliation(s)
- Yohei Yamamoto
- Department of Orthopedic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
- *Correspondence: Yohei Yamamoto, Department of Orthopedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan (e-mail: )
| | - Yasuaki Murata
- Department of Orthopedic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
| | - Naofumi Tanaka
- Department of Rehabilitation, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
| | - Tomonori Shigemura
- Department of Orthopedic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
| | - Juntaro Maruyama
- Department of Orthopedic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
| | - Ryo Nakane
- Department of Orthopedic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
| | - Yuichi Wada
- Department of Orthopedic Surgery, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
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Matsumoto M, Murata Y, Hirose N, Iso T, Shigeta Y, Umano T, Hirose A. P21-23 Derivation of a target value of 1,3-butadiene, a possible contaminant, in drinking water. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shigemura T, Murata S, Murata Y. Prophylactic placement of external iliac artery balloon catheter in a patient with intrapelvic prosthesis migration after hemiarthroplasty: A case report. J Clin Orthop Trauma 2022; 28:101846. [PMID: 35378775 PMCID: PMC8976146 DOI: 10.1016/j.jcot.2022.101846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 03/18/2022] [Accepted: 03/23/2022] [Indexed: 11/21/2022] Open
Abstract
Intrapelvic prosthesis migration is a rare but serious complication of bipolar hemiarthroplasty in femoral neck fractures. The external iliac artery is one of the most frequently damaged arteries during the removal of a migrated implant from the pelvic region. This report describes a case in which prophylactic placement of an external iliac artery balloon catheter was performed to reduce blood loss in the event of vascular injury during implant removal surgery in the pelvic region.
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Affiliation(s)
- Tomonori Shigemura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
- Corresponding author.
| | - Satoru Murata
- Department of Interventional Radiology, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
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Shigemura T, Murata Y, Yamamoto Y, Shiratani Y, Hamano H, Wada Y. Comparison between ilioinguinal approach and modified Stoppa approach for the treatment of acetabular fractures: An updated systematic review and meta-analysis. Orthop Traumatol Surg Res 2022; 108:103204. [PMID: 35066214 DOI: 10.1016/j.otsr.2022.103204] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 05/15/2021] [Accepted: 07/13/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND The modified Stoppa (MS) approach is an alternative to the ilioinguinal (IL) approach and three meta-analyses comparing these two approaches for the treatment of acetabular fractures were published previously. The aim of this study was to provide an updated systematic review and meta-analysis comparing the MS approach with the IL approach for the treatment of acetabular fractures and to answer the following question: are the results of the MS approach superior to those of the IL approach in terms of reduction quality, operative time, operative blood loss, complications, and clinical outcomes for treatment of acetabular fractures? PATIENTS AND METHODS An updated systematic literature review was conducted using relevant original studies from various databases (PubMed, Web of Science and the Cochrane Library). Pooling of data was performed using RevMan software (version 5.3, Cochrane Collaboration, Oxford, UK). A p-value of<0.05 was considered to be significant. We calculated the mean differences (MDs) for continuous data and odds ratio (OR) for dichotomous data with 95% confidence intervals (CIs) for each outcome. Statistical heterogeneity was assessed based on I2 using the standard Chi2 test. When I2>50%, significant heterogeneity was assumed and a random-effects model was applied for the meta-analysis. A fixed-effects model was applied in the absence of significant heterogeneity. RESULTS Six studies were included in this meta-analysis. The findings demonstrated that the rate of anatomical reduction was significantly higher in the MS approach than in the IL approach (I2=0%, OR=1.75, 95% CI: 1.13-2.69, p=0.01), the operative time was significantly shorter in the MS approach than in the IL approach (I2=88%, MD=-63.60, 95% CI: -93.01 - (-34.20), p<0.0001) and operative blood loss was significantly lower in the MS approach than in the IL approach (I2=75%, MD=-350.51, 95% CI: -523.45 - (-177.58), p<0.0001). There was no significant difference in the rate of nerve injury (I2=0%, OR=0.47, 95% CI: 0.16-1.39, p=0.17), the rate of vascular injury (I2=0%, OR=0.51, 95% CI: 0.17-1.49, p=0.22), the rate of infection (I2=0%, OR=0.53, 95% CI: 0.25-1.12, p=0.10), the rate of heterotopic ossification (I2=45%, OR=0.63, 95% CI: 0.22-1.85, p=0.40), and the rate of excellent or good clinical score (I2=21%, OR=1.15, 95% CI: 0.56-2.38, p=0.70) between the two approaches. DISCUSSION The MS approach provided better reduction quality, shorter operative time, lower operative blood loss, although there were no significant differences in the rate of complications, and excellent or good clinical score between the two approaches. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Tomonori Shigemura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, 299-0111 Chiba, Japan.
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, 299-0111 Chiba, Japan
| | - Yohei Yamamoto
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, 299-0111 Chiba, Japan
| | - Yuki Shiratani
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, 299-0111 Chiba, Japan
| | - Hiroyuki Hamano
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, 299-0111 Chiba, Japan
| | - Yuichi Wada
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, 299-0111 Chiba, Japan
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Shigemura T, Murata Y, Yamamoto Y, Shiratani Y, Hamano H, Wada Y. Minimally invasive anterolateral approach versus lateral transmuscular approach for total hip arthroplasty: A systematic review and meta-analysis. Surgeon 2021; 20:e254-e261. [PMID: 34794904 DOI: 10.1016/j.surge.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 09/03/2021] [Accepted: 09/12/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Total hip arthroplasty (THA) using a minimally invasive (MI) approach is a commonly performed procedure, and several approaches are now being used clinically. The MI anterolateral (MIAL) approach is one of the MI approaches used in clinical practice. Whether the MIAL approach is superior to non-MI approaches remains controversial. To resolve this controversy, we performed a systematic review and a meta-analysis of results of THA procedures that used the MIAL approach. We assessed whether the MIAL approach was superior to the lateral transmuscular (LT) approach in terms of operative time, operative blood loss, radiological parameters, and clinical outcomes. METHODS We performed a methodical search for all literature published on PubMed, Web of Science, and the Cochrane Library, and pooled data using the RevMan software. A p value < 0.05 was considered statistically significant. We calculated the mean differences (MD) for continuous data with 95% confidence intervals (CI) for each outcome. RESULTS This meta-analysis included 6 studies. Pooled results indicated no statistically significant differences between the groups in terms of operative time (MD = 5.13, 95% CI -2.49 to 12.75, p = 0.19), cup abduction angle (MD = 1.64, 95% CI -1.32 to 4.60, p = 0.28), and cup anteversion angle (MD = 0.75, 95% CI -1.09 to 2.59, p = 0.43). Operative blood loss was significantly greater in those who underwent THA via the MIAL approach than those who underwent THA via the LT approach (MD = 68.01, 95% CI 14.69 to 121.33, p = 0.01). The postoperative Harris hip score (HHS) assessed at the time of final follow-up was significantly higher in those who underwent THA via the MIAL approach than those who underwent THA via the LT approach (MD = 1.41, 95% CI 0.50 to 2.33, p = 0.002). CONCLUSION We conclude that the MIAL approach is superior to the LT approach in terms of clinical outcomes. LEVEL OF EVIDENCE Level Ⅱ.
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Affiliation(s)
- Tomonori Shigemura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan.
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Yohei Yamamoto
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Yuki Shiratani
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Hiroyuki Hamano
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Yuichi Wada
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
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Matsumoto M, Murata Y, Hirose N, Shigeta Y, Iso T, Hirose A. Hazard assessment of disinfection by-products, bromo chloroacetic acid and bromo dichloroacetic acid, in drinking water. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00766-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Baba Y, Kikuchi E, Shigeta K, Ogihara K, Matsushima M, Nishimoto Y, Murata Y, Asakura H, Oyama M, Mizuno R, Oya M. Effects of transurethral resection under general anesthesia on tumor recurrence in non-muscle invasive bladder cancer. Int J Clin Oncol 2021; 26:2094-2103. [PMID: 34357470 DOI: 10.1007/s10147-021-02000-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 07/04/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND The effects of the type of anesthesia (spinal (SA) vs. general (GA)) used for transurethral resection of bladder tumor (TURBT) on non-muscle invasive bladder cancer (NMIBC) recurrence and progression are controversial and our aim is to investigate their associations. METHODS We identified 300 NMIBC patients who underwent initial TURBT with SA or GA. Cox's regression analysis was performed to examine the effects of anesthesia on tumor recurrence. RESULTS Among 300 patients, 153 (51.0%) received GA and 147 (49.0%) SA. The 5-year recurrence-free survival (RFS) rate was 59.9% in the GA group, which was significantly lower than that in the SA group (74.4%, p = 0.029). GA (HR 1.57, p = 0.048), male sex (HR 2.72, p = 0.012), and tumor multiplicity (HR 1.96, p = 0.006) were independently associated with tumor recurrence. In a subgroup of 137 patients with high-risk NMIBC, the 5-year RFS rate was 50.3% in the GA group, which was significantly lower than that in the SA group (77.6%, p = 0.020), and GA remained an independent indicator of tumor recurrence (HR 2.35, p = 0.016). However, no significant differences were observed in the RFS rates of low- to intermediate-risk NMIBC patients between the GA and SA groups. CONCLUSIONS The RFS rate was lower in NMIBC patients who received GA during TURBT than in those who received SA. Volatile anesthesia may increase tumor recurrence, particularly in high-risk NMIBC patients, which may be due to the inhibition of the immune response system during surgery.
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Affiliation(s)
- Yuto Baba
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan
| | - Eiji Kikuchi
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan. .,Department of Urology, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki, Kanagawa, 216-8511, Japan.
| | - Keisuke Shigeta
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan
| | - Koichiro Ogihara
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan
| | - Masashi Matsushima
- Department of Urology, Ogikubo Hospital, 3-1-24 Imagawa, Suginami, Tokyo, 167-0035, Japan
| | - Yui Nishimoto
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan
| | - Yasuaki Murata
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan
| | - Hirotaka Asakura
- Department of Urology, Saitama Medical University Hospital, 38 Morohongo Moroyama-machi, Iruma-gun, Saitama, 350-0495, Japan
| | - Masafumi Oyama
- Department of Uro-Oncology, Saitama Medical University International Medical Center, 1397-1 Yamane, Hidaka-shi, Saitama, 350-1298, Japan
| | - Ryuichi Mizuno
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, 35 Shinanomachi, , Shinjuku, Tokyo, 160-8582, Japan
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Tahjib-Ul-Arif M, Sohag AAM, Mostofa MG, Polash MAS, Mahamud AGMSU, Afrin S, Hossain MA, Hossain MA, Murata Y, Tran LSP. Comparative effects of ascobin and glutathione on copper homeostasis and oxidative stress metabolism in mitigation of copper toxicity in rice. Plant Biol (Stuttg) 2021; 23 Suppl 1:162-169. [PMID: 33236382 DOI: 10.1111/plb.13222] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/18/2020] [Indexed: 05/25/2023]
Abstract
Copper (Cu) pollution of agricultural land is a major threat to crop production. Exogenous chemical treatment is an easily accessible and rapid approach to remediate metal toxicity, including Cu toxicity in plants. We compared the effects of ascobin (ASC; ascorbic acid:citric acid at 2:1) and glutathione (GSH) in mitigation of Cu toxicity in rice. Plants subjected to Cu stress displayed growth inhibition and biomass reduction, which were connected to reduced levels of chlorophylls, RWC, total phenolic compounds, carotenoids and Mg2+ . Increased accumulation of ROS and malondialdehyde indicated oxidative stress in Cu-stressed plants. However, application of ASC or GSH minimized the inhibitory effects of Cu stress on rice plants by restricting Cu2+ uptake and improving mineral balance, chlorophyll content and RWC. Both ASC and GSH pretreatments reduced levels of ROS and malondialdehyde and improved activities of antioxidant enzymes, suggesting their roles in alleviating oxidative damage. A comparison on the effects of ASC and GSH under Cu stress revealed that ASC was more effective in restricting Cu2+ accumulation (69.5% by ASC and 57.1% by GSH), Ca2+ and Mg2+ homeostasis, protection of photosynthetic pigments and activation of antioxidant defence mechanisms [catalase (110.4%), ascorbate peroxidase (76.5%) and guaiacol peroxidase (39.0%) by ASC, and catalase (58.9%) and ascorbate peroxidase (59.9%) by GSH] in rice than GSH, eventually resulting in better protection of ASC-pretreated plants against Cu stress. In conclusion, although ASC and GSH differed in induction of stress protective mechanisms, both were effective in improving rice performance in response to Cu phytotoxicity.
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Affiliation(s)
- M Tahjib-Ul-Arif
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama, 700-8530, Japan
| | - A A M Sohag
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - M G Mostofa
- Department of Biochemistry and Molecular Biology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - M A S Polash
- Department of Crop Botany, Khulna Agricultural University, Khulna, 9202, Bangladesh
| | - A G M S U Mahamud
- School of Food Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - S Afrin
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama, 700-8530, Japan
| | - M A Hossain
- Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - M A Hossain
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Y Murata
- Graduate School of Environmental and Life Science, Okayama University, Kita-ku, Okayama, 700-8530, Japan
| | - L-S P Tran
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam
- Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
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16
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Shugai A, Nagel U, Murata Y, Li Y, Mamone S, Krachmalnicoff A, Alom S, Whitby RJ, Levitt MH, Rõõm T. Infrared spectroscopy of an endohedral water in fullerene. J Chem Phys 2021; 154:124311. [PMID: 33810704 DOI: 10.1063/5.0047350] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
An infrared absorption spectroscopy study of the endohedral water molecule in a solid mixture of H2O@C60 and C60 was carried out at liquid helium temperature. From the evolution of the spectra during the ortho-para conversion process, the spectral lines were identified as para-H2O and ortho-H2O transitions. Eight vibrational transitions with rotational side peaks were observed in the mid-infrared: ω1, ω2, ω3, 2ω1, 2ω2, ω1 + ω3, ω2 + ω3, and 2ω2 + ω3. The vibrational frequencies ω2 and 2ω2 are lower by 1.6% and the rest by 2.4%, as compared to those of free H2O. A model consisting of a rovibrational Hamiltonian with the dipole and quadrupole moments of H2O interacting with the crystal field was used to fit the infrared absorption spectra. The electric quadrupole interaction with the crystal field lifts the degeneracy of the rotational levels. The finite amplitudes of the pure v1 and v2 vibrational transitions are consistent with the interaction of the water molecule dipole moment with a lattice-induced electric field. The permanent dipole moment of encapsulated H2O is found to be 0.50 ± 0.05 D as determined from the far-infrared rotational line intensities. The translational mode of the quantized center-of-mass motion of H2O in the molecular cage of C60 was observed at 110 cm-1 (13.6 meV).
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Affiliation(s)
- A Shugai
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - U Nagel
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
| | - Y Murata
- Institute for Chemical Research, Kyoto University, Kyoto 611-0011, Japan
| | - Yongjun Li
- Department of Chemistry, Columbia University, New York, New York 10027, USA
| | - S Mamone
- School of Chemistry, Southampton University, Southampton SO17 1BJ, United Kingdom
| | - A Krachmalnicoff
- School of Chemistry, Southampton University, Southampton SO17 1BJ, United Kingdom
| | - S Alom
- School of Chemistry, Southampton University, Southampton SO17 1BJ, United Kingdom
| | - R J Whitby
- School of Chemistry, Southampton University, Southampton SO17 1BJ, United Kingdom
| | - M H Levitt
- School of Chemistry, Southampton University, Southampton SO17 1BJ, United Kingdom
| | - T Rõõm
- National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia
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Sato T, Eguchi Y, Enomoto K, Murata Y. Treating difficult-to-diagnose tight filum terminale: our experience with four patients. BMJ Case Rep 2021; 14:e239184. [PMID: 33547129 PMCID: PMC7871268 DOI: 10.1136/bcr-2020-239184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2021] [Indexed: 02/06/2023] Open
Abstract
Tight filum terminale (TFT) is a general term for pathological conditions that result in abnormal tension on the spinal cord, pulling the conus medullaris caudally. Because symptoms can vary, we aim to review the usefulness of Komagata's criteria in our experience with four patients who had TFT that was missed in prior workups. We performed a retrospective review of the medical records of four patients who underwent resection of the filum terminale for TFT. A total of four patients underwent surgery. The patients' chief complaints were lower back pain, lower limb pain and numbness. All patients met the Komagata diagnostic criteria for TFT and also had neurological abnormalities of the upper limbs, such as numbness and pathological reflexes. We resected the filum terminale in all patients, and achieved resolution of their preoperative symptoms. Komagata's diagnostic criteria are seemingly useful for the diagnosis of TFT.
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Affiliation(s)
- Takashi Sato
- Department of Orthopaedic Surgery, Chiba University, Chiba, Japan
| | - Yawara Eguchi
- Department of Orthopaedic Surgery, Center for Orthopaedic science medical innovation graduated school of medicine, Chiba University, Chiba, Chiba, Japan
| | - Keigo Enomoto
- Department of Orthopaedic Surgery, Chiba University, Chiba, Japan
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo Daigaku Chiba Sogo Iryo Center, Ichihara, Chiba, Japan
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18
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Shigemura T, Baba Y, Murata Y, Yamamoto Y, Shiratani Y, Hamano H, Wada Y. Is a portable accelerometer-based navigation system useful in total hip arthroplasty?: A systematic review and meta-analysis. Orthop Traumatol Surg Res 2021; 107:102742. [PMID: 33358026 DOI: 10.1016/j.otsr.2020.08.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/31/2020] [Accepted: 08/19/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Precise implant alignment is a crucial prognostic factor for successful outcomes following total hip arthroplasty (THA). A portable accelerometer-based navigation (PN) device may achieve the same accuracy as that achieved by the computer-assisted navigation surgery technique, with the convenience of a conventional technique. Although the usefulness of PN in THA (PN-THA) has been reported, whether it is more accurate than performing THA with a conventional technique (CON-THA) remains controversial. The difference in surgical time between PN-THA and CON-THA is also unclear. Therefore, we conducted a systematic review and meta-analysis of studies comparing results of PN-THA with those of CON-THA. We focused on the following question: is PN-THA superior to CON-THA in terms of radiological parameters and surgical time? PATIENTS AND METHODS A literature search was conducted in PubMed, Web of Science, and Cochrane Library, to identify studies that met the following inclusion criteria: randomised controlled trials (RCT) or non-RCT, studies involving patients who underwent PN-THA and patients who underwent CON-THA, studies including data on radiological parameters and surgical outcomes. Author names, publication year, country, study design, surgical approach, demographic characteristics of the participants (diagnosis, gender, age, and body mass index), and surgical outcomes (the radiological parameters and the surgical time) were extracted. We calculated the mean differences (MDs) for continuous data with 95% confidence intervals (CIs) for each outcome. p<0.05 was considered significant. RESULTS Three studies were included in this meta-analysis. The meta-analysis showed that absolute deviation of the postoperative measured angles from the target position for the cup anteversion was significantly smaller in PN-THA than in CON-THA (MD=-1.70, 95% CI=-2.91 to -0.50, [p=0.005]). There was no significant difference in the absolute deviation of the postoperative measured angles from the target position for cup abduction between the groups (MD=-1.82, 95% CI=-4.32-0.67, [p=0.15]). The surgical time was significantly longer in PN-THA than in CON-THA (MD=8.58, 95% CI=4.05-13.10, [p=0.0002]). DISCUSSION This systematic review and meta-analysis of studies comparing the results of PN-THA with those of CON-THA showed that the PN-THA is advantageous for precise cup implantation compared to CON-THA, although PN-THA has a longer surgical time compared to CON-THA. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Tomonori Shigemura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan.
| | - Yoshihiko Baba
- Department of English, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Yohei Yamamoto
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Yuki Shiratani
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Hiroyuki Hamano
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
| | - Yuichi Wada
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara, Chiba, 299-0111, Japan
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19
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Maseki H, Kinoshita T, Matsui A, Iwata Y, Harada H, Sasahara M, Ichimura Y, Murata Y, Urakami S, Seki S, Oishi T, Isobe Y. The effect of Scalp-Cooling System on the prevention of alopecia after chemotherapy. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)30666-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Shigemura T, Miura M, Murata Y, Yamamoto Y, Maruyama J, Wada Y. A new closed reduction technique using a traction table to treat a traumatic posterior dislocation of the hip joint. Orthop Traumatol Surg Res 2020; 106:881-884. [PMID: 32386842 DOI: 10.1016/j.otsr.2020.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/24/2020] [Accepted: 03/31/2020] [Indexed: 02/03/2023]
Abstract
Traumatic hip dislocations should be reduced gently and promptly to prevent complications such as osteonecrosis of the femoral head, heterotopic ossification, incomplete recovery of sciatic nerve injury, and fractures of the femoral neck. Many closed reduction manoeuvres have been reported; however, these manoeuvres require forceful and sustained traction, which places an enormous physical burden on surgeons. The aim of the present technical note is to describe a new reduction manoeuvre that uses a traction table to decrease the physical burden experienced by surgeons.
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Affiliation(s)
- Tomonori Shigemura
- Department of orthopaedic surgery, Teikyo university Chiba medical center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan.
| | - Masataka Miura
- Department of orthopaedic surgery, Teikyo university Chiba medical center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Yasuaki Murata
- Department of orthopaedic surgery, Teikyo university Chiba medical center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Yohei Yamamoto
- Department of orthopaedic surgery, Teikyo university Chiba medical center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Juntaro Maruyama
- Department of orthopaedic surgery, Teikyo university Chiba medical center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Yuichi Wada
- Department of orthopaedic surgery, Teikyo university Chiba medical center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
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21
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Tozuka T, Seike M, Murata Y, Sugano T, Nakamichi S, Minegishi Y, Noro R, Hirose T, Kubota K, Gemma A. P2.14-41 Risk Factors for Brain Metastasis in Patients with EGFR Mutant Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Kosibaty Z, Murata Y, Minami Y, Noguchi M. P2.14-22 Loss of Ect2 Expression Impairs Cell-Matrix Adhesion and FAK/Src Signaling in Lung Adenocarcinoma Cells. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shigemura T, Murata Y, Yamamoto Y, Mizuki N, Toki Y, Wada Y. No definite advantage of a portable accelerometer-based navigation system over conventional technique in total knee arthroplasty: A systematic review and meta-analysis. Orthop Traumatol Surg Res 2019; 105:619-626. [PMID: 31040097 DOI: 10.1016/j.otsr.2019.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND Precise implant alignment is a crucial prognostic factor in total knee arthroplasty (TKA). Portable navigation systems (PN-TKA) were reported to be better than the conventional technique (CON-TKA). We hypothesized that PN-TKA offered greater radiologic precision than CON-TKA in mechanically aligning components. We investigated whether (1) it improved global mechanical alignment, and (2) optimized component placement with respect to the tibial and femoral mechanical axes. PATIENTS AND METHODS A systematic literature review compared PN-TKA versus CON-TKA. PubMed, Web of Science and Cochrane Library search retrieved ten studies. Their data were pooled using RevMan 5.3. Odds ratios (OR) for dichotomous data were calculated with 95% confidence intervals (CIs) for each outcome. Statistical heterogeneity was assessed as I2 using a standard χ2 test. I2>50% denoted significant heterogeneity requiring a random effects model; otherwise, a fixed effects model was applied. RESULTS There were significantly fewer outliers for mechanical axis (I2=24%, OR=0.62, 95% CI=0.42-0.91, p=0.02) and coronal femoral component angle (I2=58%, OR=0.31, 95% CI=0.13-0.73, p=0.007) using PN-TKA; however, no significant difference was observed for coronal tibial component angle outliers (I2=0%, OR=0.66, 95% CI=0.38-1.15, p=0.14). DISCUSSION Although PN-TKA appeared to improve global alignment, it had no effect on coronal tibial alignment, which is a key factor in predicting the long-term success of component fixation. There thus appeared to be no definite advantage of PN-TKA over CON-TKA. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Tomonori Shigemura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan.
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Yohei Yamamoto
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Norichika Mizuki
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Yasunori Toki
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
| | - Yuichi Wada
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesaki, 299-0111 Ichihara, Chiba, Japan
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Ohtsuru T, Yamamoto T, Murata Y, Morita Y, Munakata Y, Kato Y, Okazaki K. Incidence of osteonecrosis and insufficiency fracture of the hip and knee joints based on MRI in 300 renal transplant patients. Hip Int 2019; 29:316-321. [PMID: 30547689 DOI: 10.1177/1120700018808693] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION The purpose of this study was to investigate the incidence of necrosis and insufficiency fracture of the hip and knee using magnetic resonance imaging (MRI) in renal transplant patients. METHODS We examined 300 consecutive renal transplant patients using MRI of the hips and knees (T1-weighted coronal MRI) preoperatively and at 3 and 6 months postoperatively. Oblique axial-plane T1-weighted MRI and short-tau inversion-recovery T2-weighted MRI were performed parallel to the femoral neck when distinguishing the osteonecrosis of the femoral head (ONFH) from subchondral insufficiency fracture (SIF) of the femoral head was difficult. RESULTS ONFH was observed in 3 hips (3 cases, 1.0%). Osteonecrosis of the knee was observed in 2 knees (1 case, 0.3%). SIF of the femoral head was observed in 5 hips (3 cases, 1.0%). Bilateral simultaneous onset of SIF of the femoral head was observed in 2 cases (0.7%). Insufficiency fracture of the knee was observed in 2 knees (1 case, 0.3%). CONCLUSIONS When it was difficult to distinguish ONFH from SIF of the femoral head, oblique axial-plane T1-weighted MRI and the short-tau inversion-recovery T2-weighted MRI parallel to the femoral neck were useful to establish the correct diagnosis.
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Affiliation(s)
- Tadahiko Ohtsuru
- 1 Department of Orthopaedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Takuaki Yamamoto
- 2 Department of Orthopaedic Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Yasuaki Murata
- 3 Department of Orthopaedic Surgery, Teikyo University, Chiba, Japan
| | - Yuji Morita
- 1 Department of Orthopaedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yutaro Munakata
- 1 Department of Orthopaedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | | | - Ken Okazaki
- 1 Department of Orthopaedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
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25
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Shigemura T, Yamamoto Y, Murata Y, Sato T, Tsuchiya R, Mizuki N, Toki Y, Wada Y. Total hip arthroplasty after failed transtrochanteric rotational osteotomy for osteonecrosis of the femoral head: A systematic review and meta-analysis. Orthop Traumatol Surg Res 2018; 104:1163-1170. [PMID: 30293751 DOI: 10.1016/j.otsr.2018.06.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 05/16/2018] [Accepted: 06/08/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Several studies have reported regarding total hip arthroplasty (THA) for osteonecrosis of the femoral head after failed transtrochanteric rotational osteotomy (TRO). However, to our knowledge, no formal systematic review and meta-analysis have been published yet summarizing the clinical results of a THA after failed TRO. Therefore, we conducted a systematic review and meta-analysis of the THA outcomes after failed TRO. We focussed on the issue whether a previous TRO affects the results of subsequent THA, including operative time, operative blood loss, radiological parameters, postoperative complications, and clinical outcomes. METHODS Literatures published up to January 2018 were searched in the PubMed, Web of Science, and Cochrane Library, and the pooling of data was performed using a RevMan software (version 5.3, Cochrane Collaboration, Oxford, UK). A p-value<0.05 was considered statistically significant. We calculated the mean differences (MD) for continuous data and the odds ratio (OR) for dichotomous data with 95% confidence intervals (CI) for each outcome. Statistical heterogeneity was assessed based on I2 using the standard Chi2. When I2>50%, significant heterogeneity was assumed, and a random-effects model was applied for the meta-analysis. A fixed-effects model was applied in the absence of significant heterogeneity. RESULTS Five studies were included in this meta-analysis. The results showed that operative time was significantly longer in the THA after the TRO than that for the THA without previous osteotomy (I2=92%; MD=31.62; 95% CI: 5.95 to 57.28; p=0.02). Operative blood loss was significantly greater in the THA after the TRO than that in the THA without previous osteotomy (I2=71%; MD=123.30; 95% CI: 22.21 to 224.39; p=0.02). The rate of stem malalignment was significantly higher in the THA after the TRO than that in the THA without previous osteotomy (I2=0%; OR=5.23, 95% CI: 1.95 to 14.06; p=0.001). There was no significant difference in the dislocation rate (I2=0%; OR=2.12; 95% CI: 0.64 to 6.99; p=0.22), and the postoperative Harris hip score at the final follow-up (I2=75%, MD=-0.46, 95% CI: -3.92 to 3.01, p=0.80) between the groups. CONCLUSION The results demonstrate that, performing the THA after the TRO is technically more demanding than the THA without previous osteotomy. TRO does not affect the clinical results of future THA, and is a sufficient therapeutic alternative in younger patients. LEVEL OF EVIDENCE III, systematic and meta-analysis of case control studies.
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Affiliation(s)
- Tomonori Shigemura
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesak, Ichiharai, Chiba 299-0111, Japan.
| | - Yohei Yamamoto
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesak, Ichiharai, Chiba 299-0111, Japan
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesak, Ichiharai, Chiba 299-0111, Japan
| | - Takashi Sato
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesak, Ichiharai, Chiba 299-0111, Japan
| | - Ryuto Tsuchiya
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesak, Ichiharai, Chiba 299-0111, Japan
| | - Norichika Mizuki
- Department of Orthopaedic Surgery, Chiba Rosai Hospital, 2-16 Tatsumidai-higashi, Ichihara, Chiba 290-0003, Japan
| | - Yasunori Toki
- Department of Orthopaedic Surgery, Kimitsu Chuo Hospital, 1010 Sakurai, Kisarazu, Chiba 292-0822, Japan
| | - Yuichi Wada
- Department of Orthopaedic Surgery, Teikyo University Chiba Medical Center, 3426-3 Anesak, Ichiharai, Chiba 299-0111, Japan
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Usui M, Hayasaki A, Fujii T, Iizawa Y, Kato H, Tanemura A, Murata Y, Azumi Y, Kuriyama N, Kishiwada M, Mizuno S, Sakurai H, Isaji S. Early Enteral Feeding of Daikenchuto Stimulates Early Bowel Movement With Increased Portal Venous Blood Flow After Living Donor Liver Transplantation. Transplant Proc 2018; 50:2690-2694. [PMID: 30401378 DOI: 10.1016/j.transproceed.2018.03.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 03/06/2018] [Indexed: 10/17/2022]
Abstract
Daikenchuto (DKT), a Japanese Kampo medicine, had been reported to increase small intestinal blood flow after liver resection. The aim of this study was to evaluate the effects of early enteral feeding of DKT on portal venous flow and early bowel movement after living donor liver transplantation (LDLT) in an attempt to clarify whether these effects on bowel motility can prevent bacterial and/or fungal translocation. MATERIALS AND METHODS Our prospective study included the consecutive 16 LDLT recipients at Mie University Hospital between June 2006 and September 2009. Sixteen patients were divided into the 2 groups according to enteral feeding starting postoperative day (POD) 1: 8 patients in DKT (15 g/d) administration (DKT group, for 1 week) and 8 patients in tepid water administration (non-DKT group, for 1 week). Portal venous flow, portal venous pressure, presence of fungal infection (serum level of β-D-glucan and fungal polymerase chain reaction assay), time to first food intake, and time to first defecation were serially examined. RESULTS Portal venous flow (mean [SD] velocity) was significantly increased in DKT group compared with non-DKT group: 47.5 (12.9) vs 31.8 (15.4) (P = .04) on POD 1, 46.8 (11.5) vs 28.8 (12.5) (P = .03) on POD 3, and 42.3 (17.2) vs 25.2 (9.0) (P = .05) on POD 5. However, mean (SD) portal venous pressures did not significantly change between the 2 groups. Between the 2 groups (DKT vs non-DKT), the day of first oral intake was not significantly different: 6.9 (2.5) vs 11.3 (8.7) (P = .061), but the mean (SD) day of first defecation was significantly shorter in the DKT group: 3.9 (1.1) vs 5.5 (2.6) (P = .02). Although fungal polymerase chain reaction assay was not significantly different between the 2 groups (4 vs 4 positive cases), the mean (SD) serum levels of β-D-glucan were significantly lower in the DKT group than in the non-DKT group: 9.0 (7.4) vs 18.4 (15.9) pg/mL (P = .04). CONCLUSION Early enteral feeding of DKT after LDLT increased portal vein blood flow without increasing portal vein pressure and stimulated early bowel movement, which in turn might prevent fungal translocation.
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Affiliation(s)
- M Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan.
| | - A Hayasaki
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - T Fujii
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Iizawa
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - H Kato
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - A Tanemura
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Murata
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Azumi
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - N Kuriyama
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - M Kishiwada
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - S Mizuno
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - H Sakurai
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - S Isaji
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
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Kato H, Usui M, Nakatsuka A, Hayasaki A, Ito T, Iizawa Y, Murata Y, Tanemura A, Kuriyama N, Azumi Y, Kishiwada M, Mizuno S, Sakurai H, Isaji S. Isolated Biliary Fistula After Donor Right Hepatectomy and Its Novel Interventional Treatment: Isolated Liver-Punctured Drainage. Transplant Proc 2018; 50:2885-2888. [PMID: 30401417 DOI: 10.1016/j.transproceed.2018.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 03/06/2018] [Indexed: 11/27/2022]
Abstract
Isolated biliary leakage is difficult to manage, and afflicted patients often develop refractory fistula. The present case was a 43-year-old male donor whose wife developed acute fulminant liver failure. Computed tomography (CT) volumetry showed that the estimated remnant liver volume was only 394 mL (31%) if his right lobe would be harvested. Since remnant liver volume was marginal, our proposed cut line for the right hepatectomy was set in order to preserve branches of the middle hepatic vein draining segments 4b+8 and 5. Right hepatectomy was performed, but on postoperative day 14, the donor developed fever and right back pain, and enhanced CT showed a 6 cm intra-abdominal abscess at the site of cutting, and we diagnosed it as an isolated biliary fistula since the isolated segment 5/8 was receiving arterial blood supply and exhibiting regrowth. A transabdominal abscess drainage was performed, after which the patient lost 30 to 50 mL of bile juice per day in drainage until 2 months after the drainage procedure. Ethanol injection, acetic acid injection, and transarterial or portal embolization for the isolated liver were proposed, but these all were impossible to carry out because there were no accessible routes. Thus, re-abscess drainage with a 7-French drainage catheter was performed through the isolated liver on postoperative day 53, and the isolated functional liver was punctured to induce liver atrophy. After this drainage, the isolated liver started to shrink and bile output had been stopped. In conclusion, our punctured-liver drainage could be effective for the treatment of isolated biliary fistula, allowing physicians to avoid an invasive additional liver resection or other invasive percutaneous approach using chemical reagents.
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Affiliation(s)
- H Kato
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan.
| | - M Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - A Nakatsuka
- Department of Radiology, Mie University School of Medicine, Mie, Japan
| | - A Hayasaki
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - T Ito
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Iizawa
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Murata
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - A Tanemura
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - N Kuriyama
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Azumi
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - M Kishiwada
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - S Mizuno
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - H Sakurai
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - S Isaji
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
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Fujii T, Kuriyama N, Hayasaki A, Iizawa Y, Tanemura A, Kato H, Murata Y, Azumi Y, Kishiwada M, Mizuno S, Usui M, Sakurai H, Isaji S. Recombinant Human Soluble Thrombomodulin Attenuates Hepatic Ischemia and/or Reperfusion Injury by Inhibiting Leukocyte Accumulation in Mice With Normal and Fatty Liver. Transplant Proc 2018; 50:2807-2814. [DOI: 10.1016/j.transproceed.2018.03.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 03/06/2018] [Indexed: 12/12/2022]
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Kuriyama N, Tanemura A, Hayasaki A, Fujii T, Iizawa Y, Kato H, Murata Y, Azumi Y, Kishiwada M, Mizuno S, Usui M, Sakurai H, Isaji S. Feasibility and Outcomes of Direct Dual Portal Vein Anastomosis in Living Donor Liver Transplantation Using the Right Liver Graft With Anatomic Portal Vein Variations. Transplant Proc 2018; 50:2640-2644. [DOI: 10.1016/j.transproceed.2018.03.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 03/02/2018] [Indexed: 12/14/2022]
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Tanemura A, Mizuno S, Hayasaki A, Fujii T, Iizawa Y, Kato H, Murata Y, Kuriyama N, Azumi Y, Kishiwada M, Usui M, Sakurai H, Isaji S. Biliary Complications During and After Donor Hepatectomy in Living Donor Liver Transplantation Focusing on Characteristics of Biliary Leakage and Treatment for Intraoperative Bile Duct Injury. Transplant Proc 2018; 50:2705-2710. [DOI: 10.1016/j.transproceed.2018.03.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 03/06/2018] [Indexed: 01/17/2023]
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Nakashima R, Song H, Enomoto T, Murata Y, McClaid MR, Casto BC, Weghorst CM. Genetic alterations in the transforming growth factor receptor complex in sporadic endometrial carcinoma. Gene Expr 2018; 8:341-52. [PMID: 10947082 PMCID: PMC6157378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Cellular responses to the transforming growth factor beta (TGFbeta) ligand, including inhibition of cell proliferation, are mediated by a heteromeric receptor complex composed of TGFbeta types I and II receptors (TbetaR-I and TbetaR-II). Loss of responsiveness to TGFbeta, attributed to inactivation of the TbetaR complex, has been implicated in the development of tumors in a number of human epithelial and lymphoid tissues. To gain a better understanding of TGFbeta signal transduction pathways in endometrial carcinogenesis, we have investigated the role of the TbetaR complex by evaluating the TbetaR-I and TbetaR-II genes for mutations throughout the entire coding region in human sporadic endometrial tumors. Using reverse transcription-PCR, "Cold" single-strand conformation polymorphism analysis, and direct DNA sequencing, it was found that 1 of 39 (2.6%) and 7 of 42 samples (17%) contained code-altering changes in the kinase domain of TbetaR-I and TbetaR-II, respectively. In 7betaR-I, a 3-bp deletion was found resulting in replacement of Arg and Glu at codon 237 and 238 by Lys. With TbetaR-II, mutations were found in the kinase, the extracellular, and the C-terminal domains. No frameshift mutations were detected; however, a silent population polymorphism (AAC-->AAT at codon 389) in TbetaR-II was found in 19 of 42 (44%) tumor samples. These results suggest that alteration in TbetaR-II, but not TbetaR-I, has an important role in the development of endometrial carcinoma.
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Affiliation(s)
- R Nakashima
- Division of Environmental Health Sciences, School of Public Health, College of Medicine and Public Health and the Comprehensive Cancer Center, The Ohio State University, Columbus 43210-1240, USA
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Shigemura T, Yamamoto Y, Murata Y, Sato T, Tsuchiya R, Wada Y. Total hip arthroplasty after a previous pelvic osteotomy: A systematic review and meta-analysis. Orthop Traumatol Surg Res 2018; 104:455-463. [PMID: 29581068 DOI: 10.1016/j.otsr.2018.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 03/13/2018] [Accepted: 03/14/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND There are several reports regarding total hip arthroplasty (THA) after a previous pelvic osteotomy (PO). However, to our knowledge, until now there has been no formal systematic review and meta-analysis published to summarize the clinical results of THA after a previous PO. Therefore, we conducted a systematic review and meta-analysis of results of THA after a previous PO. We focus on these questions as follows: does a previous PO affect the results of subsequent THA, such as clinical outcomes, operative time, operative blood loss, and radiological parameters. METHODS Using PubMed, Web of Science, and Cochrane Library, we searched for relevant original papers. The pooling of data was performed using RevMan software (version 5.3, Cochrane Collaboration, Oxford, UK). A p-value<0.05 was judged as significant. Standardized mean differences (SMD) were calculated for continuous data with a 95% confidence interval (CI) was reported. Statistical heterogeneity was assessed based on I2 using standard χ2 test. When I2>50%, significant heterogeneity was assumed and a random-effects model was applied for the meta-analysis. A fixed-effects model was applied in the absence of significant heterogeneity. RESULTS Eleven studies were included in this meta-analysis. The pooled results indicated that there was no significant difference in postoperative Merle D'Aubigne-Postel score (I2=0%, SMD=-0.15, 95% CI: -0.36 to 0.06, p=0.17), postoperative Harris hip score (I2=60%, SMD=-0.23, 95% CI: -0.50 to 0.05, p=0.10), operative time (I2=86%, SMD=0.37, 95% CI: -0.09 to 0.82, p=0.11), operative blood loss (I2=82%, SMD=0.23, 95% CI: -0.17 to 0.63, p=0.25), and cup abduction angle (I2=43%, SMD=-0.08, 95% CI: -0.25 to 0.09, p=0.38) between THA with and without a previous PO. However, cup anteversion angle of THA with a previous PO was significantly smaller than that of without a previous PO (I2=77%, SMD=-0.63, 95% CI: -1.13 to -0.13, p=0.01). CONCLUSION Systematic review and meta-analysis of results of THA after a previous PO was performed. A previous PO did not affect the results of subsequent THA, except for cup anteversion. Because of the low quality evidence currently available, high-quality randomized controlled trials are required. LEVEL OF EVIDENCE Level III, meta-analysis of case-control studies.
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Affiliation(s)
- T Shigemura
- Department of orthopaedic surgery, Teikyo university, Chiba Medical Center, 3426-3 Anesaki, 2990111 Ichihara, Chiba, Japan.
| | - Y Yamamoto
- Department of orthopaedic surgery, Teikyo university, Chiba Medical Center, 3426-3 Anesaki, 2990111 Ichihara, Chiba, Japan
| | - Y Murata
- Department of orthopaedic surgery, Teikyo university, Chiba Medical Center, 3426-3 Anesaki, 2990111 Ichihara, Chiba, Japan
| | - T Sato
- Department of orthopaedic surgery, Teikyo university, Chiba Medical Center, 3426-3 Anesaki, 2990111 Ichihara, Chiba, Japan
| | - R Tsuchiya
- Department of orthopaedic surgery, Teikyo university, Chiba Medical Center, 3426-3 Anesaki, 2990111 Ichihara, Chiba, Japan
| | - Y Wada
- Department of orthopaedic surgery, Teikyo university, Chiba Medical Center, 3426-3 Anesaki, 2990111 Ichihara, Chiba, Japan
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Minagawa I, Murata Y, Terada K, Shibata M, Park EY, Sasada H, Kohsaka T. Evidence for the role of INSL3 on sperm production in boars by passive immunisation. Andrologia 2018; 50:e13010. [DOI: 10.1111/and.13010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/09/2018] [Indexed: 01/15/2023] Open
Affiliation(s)
- I. Minagawa
- Department of Applied Life Science; Faculty of Agriculture; Shizuoka University; Shizuoka Japan
| | - Y. Murata
- Department of Agriculture; Graduate School of Integrated Science and Technology; Shizuoka University; Shizuoka Japan
| | - K. Terada
- Shizuoka Swine and Poultry Experimental Station; Kikugawa Japan
| | - M. Shibata
- Shizuoka Swine and Poultry Experimental Station; Kikugawa Japan
| | - E. Y. Park
- Research Institute of Green Science and Technology; Shizuoka University; Shizuoka Japan
- Department of Bioscience; Graduate School of Science and Technology; Shizuoka University; Shizuoka Japan
| | - H. Sasada
- School of Veterinary Science; Kitasato University; Towada Japan
| | - T. Kohsaka
- Department of Applied Life Science; Faculty of Agriculture; Shizuoka University; Shizuoka Japan
- Department of Agriculture; Graduate School of Integrated Science and Technology; Shizuoka University; Shizuoka Japan
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Kato H, Usui M, Muraki Y, Okuda M, Nakatani K, Hayasaki A, Ito T, Iizawa Y, Murata Y, Tanemura A, Kuriyama N, Azumi Y, Kishiwada M, Mizuno S, Sakurai H, Isaji S. Intravenous Administration of Tacrolimus Stabilizes Control of Blood Concentration Regardless of CYP3A5 Polymorphism in Living Donor Liver Transplantation: Comparison of Intravenous Infusion and Oral Administration in Early Postoperative Period. Transplant Proc 2018; 50:2684-2689. [PMID: 30401377 DOI: 10.1016/j.transproceed.2018.03.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 03/06/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND We compared achievement rate of sufficient tacrolimus blood concentration in the early postoperative period and incidence of acute cellular rejection within 1 month after living donor liver transplantation (LDLT) between tacrolimus intravenous (IV) and oral administration groups. METHODS From October 2005 to November 2016, 61 LDLT patients administered tacrolimus, who could be genotyped for CYP3A5*3 and *1, were chosen from the electronic record database. The patients were then divided into the 2 groups (an IV group [n = 38] and an oral group [n = 23]). We defined patients with 1*1 or *1*3 as expressors and those with *3*3 as nonexpressors. Sufficient trough level tacrolimus blood concentration on postoperative day (POD) 3 was defined as 10-20 ng/mL. RESULTS Comparable concentrations were seen between the 2 groups, with mean blood concentration 13.7 ± 8.5 ng/mL in the oral group and 15.2 ± 4.3 ng/mL in the IV group. Achievement rate of sufficient tacrolimus concentration on POD 3 was significantly higher in the IV group than in oral group: 97% (37 of 38) vs 65% (15 of 23), respectively (P = .001). When we focused on achievement rate in the oral group according to CYP3A5 polymorphism, the frequency of expressors (17%) was significantly lower than that of nonexpressors (82%) (P = .016). However, in the IV group this negative influence was totally eliminated, resulting in high achievement rates regardless of CYP3A5 polymorphism. In terms of incidence of acute cellular rejection, there was no significant difference between the 2 groups (IV 32% vs oral 17%, P = .250). CONCLUSION IV administration of tacrolimus allowed us to obtain more stable control of blood concentration regardless of CYP3A5 genotype.
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Affiliation(s)
- H Kato
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan.
| | - M Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Muraki
- Department of Clinical Pharmacoepidemiology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - M Okuda
- Department of Pharmacology, Mie University Hospital, Mie, Japan
| | - K Nakatani
- Clinical Laboratory Medicine, Mie University Hospital, Mie, Japan
| | - A Hayasaki
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - T Ito
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Iizawa
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Murata
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - A Tanemura
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - N Kuriyama
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Y Azumi
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - M Kishiwada
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - S Mizuno
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - H Sakurai
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - S Isaji
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Mie, Japan
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Ohtsuru T, Morita Y, Murata Y, Munakata Y, Itoh M, Kato Y, Okazaki K. Custom-made, antibiotic-loaded, acrylic cement spacers using a dental silicone template for treatment of infected hip prostheses. Eur J Orthop Surg Traumatol 2018; 28:615-620. [PMID: 29332203 DOI: 10.1007/s00590-017-2117-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 12/18/2017] [Indexed: 12/27/2022]
Abstract
PURPOSE Antibiotic-loaded acrylic cement (ALAC) spacers are useful for treatment of infected prostheses in the course of a two-stage revision. Spacers are handmade or are made using a commercial template, with reportedly good treatment outcomes. This study aimed to confirm the usefulness of custom-made ALAC spacers shaped like bipolar hip prostheses using a dental silicone template for treatment of infected hip prostheses, and described their manufacture. METHODS This study evaluated 10 patients who underwent two-stage revision for treatment of infected hip prostheses. Custom-made ALAC spacers were used in all patients. Templates were made with dental silicone. We investigated the following in treatment of the infected hip prostheses: bacterial pathogens; antibiotic-cement mixtures; waiting time to revision; dislocation, breakage, and migration of custom-made ALAC spacers; current hip status; progress during follow-up; presence or absence of recurrence; and walking ability. RESULTS Dislocation, breakage, and migration were not observed in custom-made ALAC spacers. All patients recovered after two-stage revision without additional surgery and showed no recurrence during the follow-up period. CONCLUSION Custom-made ALAC spacers shaped like bipolar hip prostheses using a template made of dental silicone may be useful for treatment of infected hip prostheses.
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Affiliation(s)
- Tadahiko Ohtsuru
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan.
| | - Yuji Morita
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Teikyo University, Chiba, Japan
| | - Yutaro Munakata
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
| | - Masafumi Itoh
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
| | - Yoshiharu Kato
- Kita Shinagawa 3rd Hospital, Shinagawa Ward, Tokyo, Japan
| | - Ken Okazaki
- Department of Orthopaedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
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Kosibaty Z, Murata Y, Minami Y, Sakashita S, Noguchi M. P2.02-073 Cytoplasmic Mislocalization of ECT2 Protein Is Associated with Poor Prognosis in Lung Adenocarcinoma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Miyajima M, Fujiwara K, Toshitaka Y, Yoko S, Sasai-Sakuma T, Kano M, Maehara T, Watanabe Y, Watanabe S, Murata Y, Sasano T, Eisuke M. Seizure prediction in localization-related epilepsy by heart rate variability monitoring. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abe H, Jitsuki S, Nakajima W, Murata Y, Higo N, Masuyama H, Mochizuki N, Komori T, Okuda T, Takahashi T. CRMP2 binding compound, T-817-maleic-acid, accelerates motor function recovery from brain damage. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Daley P, Louie T, Lutz JE, Khanna S, Stoutenburgh U, Jin M, Adedoyin A, Chesnel L, Guris D, Larson KB, Murata Y. Surotomycin versus vancomycin in adults with Clostridium difficile infection: primary clinical outcomes from the second pivotal, randomized, double-blind, Phase 3 trial. J Antimicrob Chemother 2017; 72:3462-3470. [DOI: 10.1093/jac/dkx299] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 07/26/2017] [Indexed: 11/13/2022] Open
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Ohtsuru T, Yamamoto T, Murata Y, Morita Y, Munakata Y, Kato Y. Bilateral subchondral insufficiency fractures of the femoral head in patients with living renal transplantation: A report of two cases. J Orthop Sci 2017; 22:972-975. [PMID: 27210732 DOI: 10.1016/j.jos.2016.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 03/04/2016] [Accepted: 03/28/2016] [Indexed: 11/19/2022]
Affiliation(s)
- Tadahiko Ohtsuru
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo 162-8666, Japan.
| | - Takuaki Yamamoto
- Department of Orthopedic Surgery, Faculty of Medicine, Fukuoka University, 745-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
| | - Yasuaki Murata
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo 162-8666, Japan
| | - Yuji Morita
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo 162-8666, Japan
| | - Yutaro Munakata
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo 162-8666, Japan
| | - Yoshiharu Kato
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo 162-8666, Japan
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Fujimoto K, Inage K, Orita S, Yamashita M, Abe K, Yamagata M, Sainoh T, Akazawa T, Kinoshita T, Nemoto T, Hirayama J, Murata Y, Kotani T, Aoki Y, Eguchi Y, Sakuma T, Aihara T, Ishikawa T, Suseki K, Hanaoka E, Yamauchi K, Kubota G, Suzuki M, Sato J, Shiga Y, Kanamoto H, Inoue M, Kinoshita H, Koda M, Furuya T, Takahashi K, Ohtori S. The nature of osteoporotic low back pain without acute vertebral fracture: A prospective multicenter study on the analgesic effect of monthly minodronic acid hydrate. J Orthop Sci 2017; 22:613-617. [PMID: 28284540 DOI: 10.1016/j.jos.2017.01.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 12/27/2016] [Accepted: 01/02/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Patients with osteoporosis but no evidence of fracture can sometimes report low back pain. However, few studies have evaluated the nature of osteoporotic low back pain in a clinical situation. Therefore, the aim of this study was to examine the nature of osteoporotic low back pain without fracture, and the analgesic effect of minodronic acid hydrate on such pain. METHODS The current study examined 136 patients with osteoporotic low back pain and no lower extremity symptoms. The following factors were evaluated before and after minodronic acid hydrate administration: the nature of osteoporotic low back pain was evaluated using the painDETECT questionnaire, numeric rating scale (NRS) score for low back pain at rest and in motion, bone mineral density (BMD) of the lumbar spine, and the serum concentration of tartrate-resistant acid phosphatase 5b (TRACP-5b) as a bone metabolism marker. RESULTS A total of 113 patients were enrolled. The painDETECT questionnaire revealed the percentage of patients with nociceptive pain and neuropathic or mixed pain was approximately 85% and 15%, respectively. the average NRS scores for low back pain at rest decreased significantly 2 months after treatment (p = 0.01), while those in motion decreased significantly 1 month after treatment (p = 0.04). The average lumbar spine BMD tended to increase after treatment, but not significantly. On the other hand, the changes in the average serum concentration of TRACP-5b did significantly decrease 1 month after treatment. There was a significant positive correlation between the rate of NRS score improvement for low back pain at rest, and the rate of improvement in serum concentration of TRACP-5b (p < 0.05). CONCLUSIONS Osteoporotic low back pain consisted of 85% nociceptive pain and 15% neuropathic or mixed pain. The pain is strongly related to pain at rest rather than that in motion.
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Affiliation(s)
- Kazuki Fujimoto
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan.
| | - Kazuhide Inage
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Masaomi Yamashita
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Koki Abe
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Masatsune Yamagata
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Takeshi Sainoh
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Tsutomu Akazawa
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Tomoaki Kinoshita
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Tetsuharu Nemoto
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Jiro Hirayama
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Yasuaki Murata
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Toshiaki Kotani
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Yasuchika Aoki
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Yawara Eguchi
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Takeshi Sakuma
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Takahito Aihara
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Tetsuhiro Ishikawa
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Kaoru Suseki
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Eiji Hanaoka
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Kazuyo Yamauchi
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Gou Kubota
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Miyako Suzuki
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Jun Sato
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Yasuhiro Shiga
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Hirohito Kanamoto
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Masahiro Inoue
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Hideyuki Kinoshita
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Masao Koda
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Takeo Furuya
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Kazuhisa Takahashi
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
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Saeki H, Kabashima K, Tokura Y, Murata Y, Shiraishi A, Tamamura R, Randazzo B, Imanaka K. Efficacy and safety of ustekinumab in Japanese patients with severe atopic dermatitis: a randomized, double-blind, placebo-controlled, phase II study. Br J Dermatol 2017; 177:419-427. [DOI: 10.1111/bjd.15493] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2017] [Indexed: 01/05/2023]
Affiliation(s)
- H. Saeki
- Department of Dermatology; Nippon Medical School; Tokyo Japan
| | - K. Kabashima
- Department of Dermatology; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - Y. Tokura
- Department of Dermatology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - Y. Murata
- Janssen Pharmaceutical K.K.; Tokyo Japan
| | | | | | - B. Randazzo
- Immunology; Janssen Research & Development, LLC; Spring House PA U.S.A
| | - K. Imanaka
- Janssen Pharmaceutical K.K.; Tokyo Japan
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Murata Y, Aoe K, Mimura-Kimura Y, Murakami T, Oishi K, Matsumoto T, Ueoka H, Matsunaga K, Yano M, Mimura Y. Association of immunoglobulin G4 and free light chain with idiopathic pleural effusion. Clin Exp Immunol 2017; 190:133-142. [PMID: 28617941 DOI: 10.1111/cei.12999] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/13/2017] [Indexed: 12/24/2022] Open
Abstract
The cause of pleural effusion remains uncertain in approximately 15% of patients despite exhaustive evaluation. As recently described immunoglobulin (Ig)G4-related disease is a fibroinflammatory disorder that can affect various organs, including the lungs, we investigate whether idiopathic pleural effusion includes IgG4-associated etiology. Between 2000 and 2012, we collected 830 pleural fluid samples and reviewed 35 patients with pleural effusions undiagnosed after pleural biopsy at Yamaguchi-Ube Medical Center. Importantly, IgG4 immunostaining revealed infiltration of IgG4-positive plasma cells in the pleura of 12 patients (34%, IgG4+ group). The median effusion IgG4 level was 41 mg/dl in the IgG4+ group and 27 mg/dl in the IgG4- group (P < 0·01). The light and heavy chains of effusion IgG4 antibodies of patients in the IgG4+ group were heterogeneous by two-dimensional electrophoresis, indicating the absence of clonality of the IgG4 antibodies. Interestingly, the κ light chains were more heterogeneous than the λ light chains. The measurement of the κ and λ free light chain (FLC) levels in the pleural fluids showed significantly different κ FLC levels (median: 28·0 versus 9·1 mg/dl, P < 0·01) and κ/λ ratios (median: 2·0 versus 1·2, P < 0·001) between the IgG4+ and IgG4- groups. Furthermore, the κ/λ ratios were correlated with the IgG4+ /IgG+ plasma cell ratios in the pleura of the IgG4+ group. Taken together, these results demonstrate the involvement of IgG4 in certain idiopathic pleural effusions and provide insights into the diagnosis, pathogenesis and therapeutic opportunities of IgG4-associated pleural effusion.
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Affiliation(s)
- Y Murata
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan.,The Department of Respiratory Medicine, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan.,Division of Cardiology, The Department of Medicine and Clinical Science, Ube, Japan
| | - K Aoe
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan
| | - Y Mimura-Kimura
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan
| | - T Murakami
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan
| | - K Oishi
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan.,The Department of Respiratory Medicine, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan.,Division of Cardiology, The Department of Medicine and Clinical Science, Ube, Japan
| | - T Matsumoto
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan
| | - H Ueoka
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan
| | - K Matsunaga
- The Department of Respiratory Medicine and Infectious Disease, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - M Yano
- Division of Cardiology, The Department of Medicine and Clinical Science, Ube, Japan
| | - Y Mimura
- The Department of Clinical Research, National Hospital Organization Yamaguchi-Ube Medical Center, Ube, Japan
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Wada K, Tamaki R, Yui M, Numaguchi D, Murata Y. C1 lateral mass screw insertion caudally from C2 nerve root - An alternate method for insertion of C1 screws: A technical note and preliminary clinical results. J Orthop Sci 2017; 22:213-217. [PMID: 27847133 DOI: 10.1016/j.jos.2016.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/07/2016] [Accepted: 10/17/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND C1 lateral mass screw was widely used for fixation of the upper cervical spine. However, massive bleeding from the C1-2 venous plexus is sometimes encountered. In this study, we proposed an alternate method for C1 lateral mass screw insertion, which involves insertion of the screws caudally from the C2 nerve root to reduce bleeding from C1-2 venous plexus. METHODS Seven patients with atlantoaxial lesions were included in this study. The mean age at surgery was 65.9 (34-82) years. The mean follow-up period was 23.1 (12-38) months. All patients underwent atlantoaxial fusion with C1 lateral mass screws, which were inserted caudally from the C2 nerve root. All screws were inserted using O-arm based navigation system. Operative time, blood loss, C2 nerve root injury and perioperative complications were investigated. The accuracy of C1 screws and bone union were evaluated using postoperative computed tomography. RESULTS A total of 13 C1 lateral mass screws were inserted using this method. The mean operative time was 224 (144-305) min. The mean blood loss was 209 (100-357) g. One perioperative complication was observed, which was recurrent laryngeal nerve palsy. There were no vertebral artery or spinal cord injuries. No case of massive bleeding from the C1-2 venous plexus was observed. One patient complained of postoperative occipital neuralgia, which disappeared in 2 weeks. No malposition of C1 lateral mass screws was observed on postoperative computed tomography. Bone union was observed in all patients. CONCLUSION The C1 lateral mass screw insertion caudally from the C2 nerve root may become an alternate method for insertion of C1 screws.
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Affiliation(s)
- Keiji Wada
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan.
| | - Ryo Tamaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Mitsuru Yui
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Daisuke Numaguchi
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yasuaki Murata
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
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Ohtsuru T, Morita Y, Murata Y, Shimamoto S, Munakata Y, Kato Y. Blood metal ion concentrations in metal-on-metal total hip arthroplasty. Eur J Orthop Surg Traumatol 2017; 27:527-532. [PMID: 28217831 DOI: 10.1007/s00590-017-1931-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 02/07/2017] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The hip placement with a metal-on-metal (MOM) bearing has been used for both surface replacement and total hip arthroplasty (THA). Use of MOM bearing for hip replacement reduces the wear compared to conventional bearings. METHODS We prospectively assessed 30 patients who underwent unilateral MOM THA. A control group of 30 patients who underwent metal-on-polyethylene THA using the implants as the other group, except for bearing, were accessed. Blood samples were collected preoperatively and at 3- , 6- , 9- , 12- , 15- , 18- , and 24-month intervals. Changes in mean blood metal ion concentration were compared between the MOM and metal-on-polyethylene groups. RESULTS A statistically significant positive correlation was observed between blood cobalt and chromium concentrations in all of the patients. The mean blood ion concentrations of the MOM were significantly higher than those of the metal-on-polyethylene. A statistically significant negative correlation was found between maximum blood cobalt concentration and cup version angle. The maximum blood chromium concentrations in the patients who had larger cup version angles were more likely to decrease. CONCLUSIONS We considered that cup version angle is one of the factors that have the greatest effect on blood metal ion concentration, and the target cup version angle that did not induce an increase in blood metal ion concentrations was approximately 20°.
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Affiliation(s)
- Tadahiko Ohtsuru
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan.
| | - Yuji Morita
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
| | - Yasuaki Murata
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
| | - Shuji Shimamoto
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
| | - Yutaro Munakata
- Department of Orthopedic Surgery, Tokyo Women's Medical University, 8-1 Kawada-Cho, Shinjuku Ward, Tokyo, 162-8666, Japan
| | - Yoshiharu Kato
- Kita Shinagawa 3rd Hospital, 3-3-7 Kita-shinagawa, Shinagawa Ward, Tokyo, 140-0001, Japan
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Gomes UP, Ercolani D, Zannier V, Battiato S, Ubyivovk E, Mikhailovskii V, Murata Y, Heun S, Beltram F, Sorba L. Heterogeneous nucleation of catalyst-free InAs nanowires on silicon. Nanotechnology 2017; 28:065603. [PMID: 28071603 DOI: 10.1088/1361-6528/aa5252] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report on the heterogeneous nucleation of catalyst-free InAs nanowires on Si(111) substrates by chemical beam epitaxy. We show that nanowire nucleation is enhanced by sputtering the silicon substrate with energetic particles. We argue that particle bombardment introduces lattice defects on the silicon surface that serve as preferential nucleation sites. The formation of these nucleation sites can be controlled by the sputtering parameters, allowing the control of nanowire density in a wide range. Nanowire nucleation is accompanied by unwanted parasitic islands, but careful choice of annealing and growth temperature allows us to strongly reduce the relative density of these islands and to realize samples with high nanowire yield.
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Affiliation(s)
- U P Gomes
- NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, I-56127 Pisa, Italy
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Mizuno S, Das BC, Iizawa Y, Kato H, Murata Y, Tanemura A, Kuriyama N, Azumi Y, Kishiwada M, Usui M, Sakurai H, Isaji S. Pretransplant Serum Hyaluronic Acid Can Be a Biomarker as a Prognostic Predictor in Adult-to-Adult Living Donor Liver Transplantation. Transplant Proc 2017; 49:102-108. [PMID: 28104115 DOI: 10.1016/j.transproceed.2016.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The goal of this study was to evaluate whether pretransplant serum hyaluronic acid (HA) levels can predict outcomes after adult-to-adult living donor liver transplantation (LDLT). METHODS In study I, 21 patients who underwent LDLT (March 2002-February 2004) were divided into 2 groups: the H-I group (HA ≥500 ng/mL; n = 12) and the L-I group (HA <500 ng/mL; n = 9). The influence of pretransplantation HA levels on short-term surgical outcome was investigated. In study II, 77 LDLT patients (May 2004-December 2014) were also divided into 2 groups: the H-II group (HA ≥500 ng/mL; n = 40) and the L-II group (HA <500 ng/mL; n = 37). We compared long-term survival and investigated prognostic factors. RESULTS In study I, HA levels significantly decreased after LDLT, and those in the H-I group were significantly higher compared with the L-I group at 1, 3, 5, and 7 days after LDLT. There were significant differences in postoperative peak total bilirubin levels (H-I vs L-I, 17.2 vs 6.2 mg/dL; P = .013), peak ascitic fluid volume (1327 vs 697 mL/d; P = .005), and the hepatocyte growth factor levels at 3 days after LDLT (1879 vs 1092 pg/mL; P = .03). In study II, the 1- and 5-year survival rates were significantly lower in the H-II group than in the L-II group (H-II vs L-II, 65.0% and 48.5% vs 86.5% and 80.8%; P = .004). In multivariate analysis, significant prognostic factors were preoperative HA ≥500 ng/mL (P = .004) and graft to recipient body weight ratio <0.8 (P = .042). CONCLUSIONS Preoperative HA level can be a prognostic risk factor. Patients with high HA levels are vulnerable and should be carefully managed after LDLT.
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Affiliation(s)
- S Mizuno
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan.
| | - B C Das
- Hepatobiliary Pancreatic Surgery, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Y Iizawa
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Kato
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Murata
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - A Tanemura
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - N Kuriyama
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Azumi
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Kishiwada
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Usui
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Sakurai
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - S Isaji
- Hepatobiliary-Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, Tsu, Japan
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Usui M, Sugimoto K, Kato H, Murata Y, Tanemura A, Kuriyama N, Azumi Y, Kishiwada M, Mizuno S, Sakurai H, Takei Y, Isaji S. Discontinuation of Hepatitis B Immunoglobulin by Long-term Hepatitis B Vaccine Inoculation in Preventing Hepatitis B Recurrence After Liver Transplantation. Transplant Proc 2017; 48:1179-83. [PMID: 27320582 DOI: 10.1016/j.transproceed.2015.12.110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 12/30/2015] [Indexed: 12/13/2022]
Abstract
INTRODUCTION For the patients undergoing liver transplantation for hepatitis B virus (HBV)-related diseases, hepatitis B immunoglobulin (HBIG) should be administered to prevent reinfection. Because HBIG is highly expensive and a blood product, an alternative strategy using HBV vaccination has been made in an attempt to discontinue use of HBIG. The aim of this study was to evaluate the impact of long-term HBV vaccination for discontinuation of HBIG, paying attention to the status of active immunization using T-cell proliferation assay. PATIENTS AND METHODS Among the 144 recipients who underwent liver transplantation in our hospital, 16 had HBV-related liver diseases; the 14 patients who had received vaccination were subjects in our study. To evaluate the status of active immunization, T-cell proliferation was examined by counting the number of T cells after adding HBV vaccine to the culture supernatant of T cells, and tumor necrosis factor α and interferon γ were measured in the culture supernatant. RESULTS The ratio of male/female was 13/1 (median age: 55 years; range: 37 years to 67 years). The median follow-up time was 102 months (range: approximately 14 months to 148 months). All 14 patients were free of HBV recurrence. HBIG-free status could be achieved in 9 patients (64.3%) during the treatment period for more than 50 months after beginning of HBV vaccination, of whom 5 (35.7%) became HBV vaccine-free. T-cell proliferation was confirmed by fact that the stimulation index ranged from 2.34 to 5.2 in the patients who were HBIG-free. CONCLUSION Long-term HBV vaccination after LT is a useful and effective treatment in preventing HBV recurrence, allowing the discontinuation of HBIG treatment.
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Affiliation(s)
- M Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan.
| | - K Sugimoto
- Hepatogastroenterology, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - H Kato
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - Y Murata
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - A Tanemura
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - N Kuriyama
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - Y Azumi
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - M Kishiwada
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - S Mizuno
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - H Sakurai
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - Y Takei
- Hepatogastroenterology, Mie Graduate School of Medicine, Tsu, Mie, Japan
| | - S Isaji
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie Graduate School of Medicine, Tsu, Mie, Japan
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Tanemura A, Mizuno S, Kato H, Murata Y, Kuriyama N, Azumi Y, Kishiwada M, Usui M, Sakurai H, Isaji S. D-MELD, the Product of Donor Age and Preoperative MELD, Predicts Surgical Outcomes After Living Donor Liver Transplantation, Especially in the Recipients With HCV-positive and Smaller Grafts. Transplant Proc 2017; 48:1025-31. [PMID: 27320548 DOI: 10.1016/j.transproceed.2015.12.090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 12/30/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Appropriate donor-recipient match has not been explored well in living-donor liver transplantation (LDLT) unlike deceased-donor liver transplantation. In this study, we evaluate the donor-recipient match using D-MELD (donor age × recipient Modified for End-stage Liver Disease [MELD] score) as a predictor of surgical outcomes in LDLT, paying attention to graft size and hepatitis C virus (HCV) status. PATIENT AND METHODS The 120 consecutive recipients who received adult-to-adult LDLT from March 2002 to December 2014 were divided into the two groups according to D-MELD score: D-MELD <1000 (low-D-MELD: n = 101) and D-MELD ≥1000 (high-D-MELD: n = 19). RESULTS The 90-day mortality rate was significantly higher in the high-DM group than in low-DM group: 36.8% versus 14.9% (P = .046). In the HCV-positive recipients, the 90-day mortality rate was significantly higher in high-DM group (n = 6) than in low-DM group (n = 37): 66.7% versus 13.5% (P = .012), and the 3-year survival rate was significantly lower in high-DM group than in the low-DM group: 33.3% versus 56.8% (P = .01). In the recipients with left graft, the 90-day mortality rate was significantly higher in the high-DM group (n = 8) than in the low-DM group (n = 41): 50% versus 14.6% (P = .044), and total bilirubin level on postoperative day 14 was significantly higher in the high-DM group than in the low-DM group: 17.4 mg/dL versus 9.2 mg/dL (P = .018). CONCLUSIONS It was clarified that D-MELD could predict early and long-term surgical outcomes in the recipients who were HCV-positive and who had smaller grafts.
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Affiliation(s)
- A Tanemura
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - S Mizuno
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan.
| | - H Kato
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - Y Murata
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - N Kuriyama
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - Y Azumi
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - M Kishiwada
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - M Usui
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - H Sakurai
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
| | - S Isaji
- Department of Hepatobiliary Pancreatic and Transplant Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan
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Nagayama A, Matsui A, Tachibana A, Suzuki N, Hirata M, Oishi Y, Hamaguchi Y, Murata Y, Okamoto Y. Evaluation of neoadjuvant weekly nanoparticle albumin-bound paclitaxel for HER2-negative breast cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw365.75] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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