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Tsoumanis P, Kitsouli A, Stefanou C, Papathanakos G, Stefanou S, Tepelenis K, Zikidis H, Tsoumani A, Zafeiropoulos P, Kitsoulis P, Kanavaros P. Chronic Inflammatory Demyelinating Polyneuropathy and Evaluation of the Visual Evoked Potentials: A Review of the Literature. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2160. [PMID: 38138263 PMCID: PMC10744621 DOI: 10.3390/medicina59122160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/02/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare autoimmune disorder characterised by the progressive demyelination of peripheral nerves, resulting in motor and sensory deficits. While much research has focused on clinical and electrophysiological aspects of CIDP, there is an emerging interest in exploring its impact on the visual system through visual evoked potentials (VEPs). This comprehensive review synthesises existing literature on VEP findings in CIDP patients, shedding light on their potential diagnostic and prognostic value. The review thoroughly examines studies spanning the last two decades, exploring VEP abnormalities in CIDP patients. Notably, VEP studies have consistently revealed prolonged latencies and reduced amplitudes in CIDP patients compared to healthy controls. These alterations in VEP parameters suggest that the demyelinating process extends beyond the peripheral nervous system to affect the central nervous system, particularly the optic nerve and its connections. The correlation between VEP abnormalities and clinical manifestations of CIDP, such as visual impairment and sensory deficits, underscores the clinical relevance of VEP assessment in CIDP management. Furthermore, this review addresses the potential utility of VEPs in aiding CIDP diagnosis and monitoring disease progression. VEP abnormalities may serve as valuable biomarkers for disease activity, helping clinicians make timely therapeutic decisions. Moreover, this review discusses the limitations and challenges associated with VEP assessment in CIDP, including variability in recording techniques and the need for standardised protocols. In conclusion, this review highlights the evolving role of VEPs as a non-invasive tool in CIDP evaluation. The consistent VEP abnormalities observed in CIDP patients suggest the involvement of the central nervous system in this demyelinating disorder. As our understanding of CIDP and its pathophysiology continues to evolve, further research in this area may lead to improved diagnostic accuracy and monitoring strategies, ultimately enhancing the clinical management of CIDP patients.
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Affiliation(s)
- Periklis Tsoumanis
- Department of Ophthalmology, University Hospital of Ioannina, 45500 Ioannina, Greece;
| | - Aikaterini Kitsouli
- Anatomy-Histology-Embryology, University of Ioannina, 45500 Ioannina, Greece; (A.K.); (P.K.); (P.K.)
| | - Christos Stefanou
- Department of Surgery, General Hospital of Filiates, 46300 Filiates, Greece;
| | | | - Stefanos Stefanou
- Department of Endocrine Surgery, Henry Dunant Hospital Center, 11526 Athens, Greece;
| | - Kostas Tepelenis
- Department of Surgery, General Hospital of Ioannina G. Hatzikosta, 45500 Ioannina, Greece;
| | - Hercules Zikidis
- Department of Neurology, University Hospital of Ioannina, 45500 Ioannina, Greece;
| | | | | | - Panagiotis Kitsoulis
- Anatomy-Histology-Embryology, University of Ioannina, 45500 Ioannina, Greece; (A.K.); (P.K.); (P.K.)
| | - Panagiotis Kanavaros
- Anatomy-Histology-Embryology, University of Ioannina, 45500 Ioannina, Greece; (A.K.); (P.K.); (P.K.)
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Alonge P, Di Stefano V, Lupica A, Gangitano M, Torrente A, Pignolo A, Maggio B, Iacono S, Gentile F, Brighina F. Clinical and Neurophysiological Follow-Up of Chronic Inflammatory Demyelinating Polyneuropathy Patients Treated with Subcutaneous Immunoglobulins: A Real-Life Single Center Study. Brain Sci 2022; 13:brainsci13010010. [PMID: 36671992 PMCID: PMC9856456 DOI: 10.3390/brainsci13010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/17/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND chronic idiopathic demyelinating polyneuropathy (CIDP) is an acquired, immune-mediated neuropathy characterized by weakness, sensory symptoms and significant reduction or loss of deep tendon reflexes evolving over 2 months at least, associated with electrophysiological evidence of peripheral nerve demyelination. Recently, subcutaneous immunoglobulins (SCIg) have been introduced in clinical practice as a maintenance therapy for CIDP; nevertheless, electrophysiological and efficacy data are limited. METHODS to evaluate SCIg treatment efficacy, we retrospectively reviewed data from 15 CIDP patients referring to our clinic, receiving SCIg treatment and who performed electrophysiological studies (NCS) and clinical scores (MRC sumscore, INCAT disability score and ISS) before starting the treatment and at least one year after. RESULTS NCS showed no significant changes before and during treatment for all the nerves explored. Clinical scores did not significantly change between evaluations. Correlation analysis evidenced a positive correlation of cMAPs distal amplitude with MRC sumscore and a trend of negative correlation with the INCAT disability score. CONCLUSIONS SCIg maintenance therapy preserves nerve function in CIDP with a good efficacy and safety. Treatment effectiveness can be assessed with ENG, which represents a useful instrument in the follow-up and prognostic assessment of CIDP.
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Huang CB, Tan K, Wu ZY, Yang L. Application of machine learning model to predict lacunar cerebral infarction in elderly patients with femoral neck fracture before surgery. BMC Geriatr 2022; 22:912. [PMID: 36443675 PMCID: PMC9703654 DOI: 10.1186/s12877-022-03631-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 11/17/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Femoral neck fracture and lacunar cerebral infarction (LCI) are the most common diseases in the elderly. When LCI patients undergo a series of traumas such as surgery, their postoperative recovery results are often poor. Moreover, few studies have explored the relationship between LCI and femoral neck fracture in the elderly. Therefore, this study will develop a ML (machine learning)-based model to predict LCI before surgery in elderly patients with a femoral neck fracture. METHODS Professional medical staff retrospectively collected the data of 161 patients with unilateral femoral neck fracture who underwent surgery in the Second Affiliated Hospital of Wenzhou Medical University database from January 1, 2015, to January 1, 2020. Patients were divided into two groups based on LCI (diagnosis based on cranial CT image): the LCI group and the non-LCI group. Preoperative clinical characteristics and preoperative laboratory data were collected for all patients. Features were selected by univariate and multivariate logistic regression analysis, with age, white blood cell (WBC), prealbumin, aspartate aminotransferase (AST), total protein, globulin, serum creatinine (Scr), blood urea nitrogen (Bun)/Scr, lactate dehydrogenase (LDH), serum sodium and fibrinogen as the features of the ML model. Five machine learning algorithms, Logistic regression (LR), Gradient Boosting Machine (GBM), Extreme Gradient Boosting (XGBoost), Random Forest (RF), and Decision tree (DT), were used in combination with preoperative clinical characteristics and laboratory data to establish a predictive model of LCI in patients with a femoral neck fracture. Furthermore, indices like the area under the receiver operating characteristic (AUROC), sensitivity, specificity, and accuracy were calculated to test the models' performance. RESULTS The AUROC of 5 ML models ranged from 0.76 to 0.95. It turned out that the RF model demonstrated the highest performance in predicting LCI for femoral neck fracture patients before surgery, whose AUROC was 0.95, sensitivity 1.00, specificity 0.81, and accuracy 0.90 in validation sets. Furthermore, the top 4 high-ranking variables in the RF model were prealbumin, fibrinogen, globulin and Scr, in descending order of importance. CONCLUSION In this study, 5 ML models were developed and validated for patients with femoral neck fracture to predict preoperative LCI. RF model provides an excellent predictive value with an AUROC of 0.95. Clinicians can better conduct multidisciplinary perioperative management for patients with femoral neck fractures through this model and accelerate the postoperative recovery of patients.
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Affiliation(s)
- Cheng-bin Huang
- grid.417384.d0000 0004 1764 2632Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University, Wenzhou, 325000 China ,grid.268099.c0000 0001 0348 3990Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000 China
| | - Kai Tan
- grid.417384.d0000 0004 1764 2632Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University, Wenzhou, 325000 China ,grid.268099.c0000 0001 0348 3990Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000 China
| | - Zong-yi Wu
- grid.417384.d0000 0004 1764 2632Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University, Wenzhou, 325000 China
| | - Lei Yang
- grid.417384.d0000 0004 1764 2632Department of Orthopaedic Surgery, The Second Affiliated Hospital and Yuying Childrens Hospital of Wenzhou Medical University, Wenzhou, 325000 China ,grid.268099.c0000 0001 0348 3990Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, 325000 China
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Wang K, Gu Y, Ni J, Zhang H, Xie J, Xu T, Geng J, Mao W, Peng B. Combination of Total Psoas Index and Albumin-Globulin Score for the Prognosis Prediction of Bladder Cancer Patients After Radical Cystectomy: A Population-Based Study. Front Oncol 2021; 11:724536. [PMID: 34616677 PMCID: PMC8488353 DOI: 10.3389/fonc.2021.724536] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 08/25/2021] [Indexed: 12/04/2022] Open
Abstract
Background Sarcopenia as the loss of skeletal muscle mass is related with poor postoperative survival. This work purposed to evaluate the prognostic prediction of the total psoas index (TPI), albumin–globulin score (AGS), and the combination of TPI and AGS (CTA) in bladder cancer (BCa) patients after radical cystectomy. Methods BCa patients that received radical cystectomy between 2012 and 2020 were retrieved from our medical center. The calculation of TPI was based on the plain computed tomography images. The predictive effects of TPI, AGS, and CTA grade on survival of BCa patients were analyzed and compared with the albumin–globulin ratio (AGR) through the receiver operating characteristic (ROC) curves. A nomogram was further established based on the Cox regression results from CTA grade and clinicopathological characteristics, which are verified by the decision curve analysis (DCA). Results A total of 112 eligible patients diagnosed as BCa were included in this study for retrospective analysis. The patients with lower TPI or higher AGS grade (1/2) contained poorer overall survival (OS) and disease-free survival (DFS). Divided by CTA grade, there were 35 (31.25%) patients in grade 1 associated with the best postoperative prognosis, which was accompanied with increased TPI and decreased AGS. The CTA grade could better predict postoperative outcomes compared with TPI, AGR, and AGS for the highest area under the curve (AUC; 0.674 of OS and 0.681 of DFS). The 3- and 5-year OS and DFS nomograms were conducted based on CTA grade and clinical variables, with a higher predictive performance than the TNM stage. Conclusion This study revealed that the novel index CTA functioned as an effective prognostic predictor for postoperative OS and DFS of BCa patients after radical cystectomy. Preoperative assessment of CTA would contribute to optimizing clinical therapies.
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Affiliation(s)
- Keyi Wang
- Department of Urology, Shanghai Shidong Hospital of Yangpu District, Shanghai, China.,Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yongzhe Gu
- Department of Neurology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jinliang Ni
- Department of Urology, Tenth People's Hospital, Anhui Medical University, Shanghai, China
| | - Houliang Zhang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jinbo Xie
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Tianyuan Xu
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiang Geng
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Weipu Mao
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Bo Peng
- Department of Urology, Shanghai Shidong Hospital of Yangpu District, Shanghai, China.,Department of Urology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China.,Department of Urology, Tenth People's Hospital, Anhui Medical University, Shanghai, China
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Infusion Parameters and Demographics of Patients With Chronic Inflammatory Demyelinating Polyneuropathy During Subcutaneous Immunoglobulin Self-Administration Training. JOURNAL OF INFUSION NURSING 2021. [DOI: 10.1097/nan.0000000000000441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Goyal NA, Karam C, Sheikh KA, Dimachkie MM. Subcutaneous immunoglobulin treatment for chronic inflammatory demyelinating polyneuropathy. Muscle Nerve 2021; 64:243-254. [PMID: 34260074 PMCID: PMC8457117 DOI: 10.1002/mus.27356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 06/11/2021] [Accepted: 06/15/2021] [Indexed: 12/15/2022]
Abstract
Immunoglobulin G (IgG) therapy is an established long‐term treatment in chronic inflammatory demyelinating polyneuropathy (CIDP) that is commonly administered intravenously (IVIg). The subcutaneous immunoglobulin (SCIg) administration route is a safe and effective alternative option, approved by the United States Food and Drug Administration (FDA) in 2018, for maintenance treatment of adults with CIDP. Physicians and patients alike need to be aware of all their treatment options in order to make informed decisions and plan long‐term treatment strategies. In this review, we collate the evidence for SCIg in CIDP from all published studies and discuss their implications and translation to clinical practice. We also provide guidance on the practicalities of how and when to transition patients from IVIg to SCIg and ongoing patient support. Evidence suggests that IVIg and SCIg have comparable long‐term efficacy in CIDP. However, SCIg can provide additional benefits for some patients, including no requirement for venous access or premedication, and reduced frequency of systemic adverse events. Local‐site reactions are more common with SCIg than IVIg, but these are mostly well‐tolerated and abate with subsequent infusions. Data suggest that many patients prefer SCIg following transition from IVIg. SCIg preference may be a result of the independence and flexibility associated with self‐infusion, whereas IVIg preference may be a result of familiarity and reliance on a healthcare professional for infusions. In practice, individualizing maintenance dosing based on disease behavior and determining the minimally effective IgG dose for individuals are key considerations irrespective of the administration route chosen.
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Affiliation(s)
- Namita A Goyal
- Department of Neurology, MDA ALS and Neuromuscular Center, University of California, Irvine, California, USA
| | - Chafic Karam
- Department of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kazim A Sheikh
- Department of Neurology, McGovern Medical School at The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Mazen M Dimachkie
- Department of Neurology, University of Kansas Medical Center, Kansas City, Kansas, USA
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