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Jhamb S, Sidhu TS, Whiting S. Hyperammonaemic encephalopathy: a remarkably rare complication after bariatric surgery. J Surg Case Rep 2023; 2023:rjad227. [PMID: 37153826 PMCID: PMC10154174 DOI: 10.1093/jscr/rjad227] [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: 03/08/2023] [Accepted: 04/06/2023] [Indexed: 05/10/2023] Open
Abstract
Hyperammonaemia is a metabolic disorder with elevated blood ammonia levels. Here we describe a case of hyperammonaemia associated encephalopathy as an incredibly rare, potentially fatal and treatable complication associated with bariatric surgery. This case highlights the importance of longer-term follow-up after bariatric surgery.
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Affiliation(s)
- Shaurya Jhamb
- Correspondence address. Department of Surgery, Townsville University Hospital, Townsville, Australia. Tel: 0400514326; E-mail:
| | - Tejminder S Sidhu
- Department of Surgery, Townsville University Hospital, Townsville, Australia
| | - Scott Whiting
- Department of Surgery, Townsville University Hospital, Townsville, Australia
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2
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Hyperammonemia in lung transplant patients and its management: a review. Indian J Thorac Cardiovasc Surg 2022; 38:335-346. [DOI: 10.1007/s12055-021-01319-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 12/13/2021] [Accepted: 12/16/2021] [Indexed: 11/27/2022] Open
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Zhang TT, Wang Y, Zhang XW, Yang KY, Miao XQ, Zhao GH. MiR-200c-3p Regulates DUSP1/MAPK Pathway in the Nonalcoholic Fatty Liver After Laparoscopic Sleeve Gastrectomy. Front Endocrinol (Lausanne) 2022; 13:792439. [PMID: 35299961 PMCID: PMC8920964 DOI: 10.3389/fendo.2022.792439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/21/2022] [Indexed: 12/12/2022] Open
Abstract
AIM Non-alcoholic fatty liver disease (NAFLD) is a health burden worldwide, which is closely related to obesity. The effect of sleeve gastrectomy (SG) on NAFLD is efficient, and the underlying mechanism remains unknown. Our study sought to investigate the mechanism of dual-specificity protein phosphatase 1 (DUSP1) expression regulation following the SG procedure in NAFLD patients and C57BL/6J mice via miR-200c-3p. METHODS The serum was extracted from NAFLD patients who underwent laparoscopic sleeve gastrectomy (LSG) and volunteers. Next, the correlation between miR-200c-3p and DUSP1 was identified in vitro. NAFLD mice were modelled by high-fat diets (HFD). The hepatic tissue expression levels of miR-200c-3p, DUSP1, phospho-extracellular regulated protein kinases1/2 (p-ERK1/2), phospho -p38 mitogen-activated protein kinases (p-p38), and phospho-c-Jun N-terminal kinases (p-JNK) induced by SG procedure were evaluated. RESULTS The SG procedure contributed to significant weight loss, reduced lipids in NAFLD patients and mice. The increased expression level of miR-200c-3p and reduced expression of DUSP1 were observed in NAFLD patients and mice (p<0.05). The reduced expression levels of miR-200c-3p and increased expression of DUSP1 were observed in patients and mice with NAFLD who underwent SG procedure. DUSP1 is a potential target of miR-200c-3p. CONCLUSIONS A novel mechanism was identified in which miR-200c-3p regulates the MAPK-dependent signals that are linked to the promotion of hepatosteatosis via DUSP1 after sleeve gastrectomy. The findings suggested that miR-200c-3p should be further explored as a potential target for the treatments of NAFLD.
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Affiliation(s)
- Tao-tao Zhang
- General Surgery, Dalian Municipal Central Hospital, Dalian, China
- General Surgery, Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Yong Wang
- General Surgery, Fourth Affiliated Hospital of China Medical University, Shenyang, China
- *Correspondence: Yong Wang, ; Xiang-wen Zhang,
| | - Xiang-wen Zhang
- General Surgery, Dalian Municipal Central Hospital, Dalian, China
- *Correspondence: Yong Wang, ; Xiang-wen Zhang,
| | - Ke-yu Yang
- General Surgery, Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiu-qin Miao
- General Surgery, Dalian Municipal Central Hospital, Dalian, China
| | - Guo-hua Zhao
- General Surgery, Dalian Municipal Central Hospital, Dalian, China
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Rosenberg C, Rhodes M. Hyperammonemia in the setting of Roux-en-Y gastric bypass presenting with osmotic demyelination syndrome. J Community Hosp Intern Med Perspect 2021; 11:708-712. [PMID: 34567470 PMCID: PMC8462895 DOI: 10.1080/20009666.2021.1952522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Hyperammonemia can lead to serious outcomes including brain herniation, coma and death. It is often attributed to liver disease, specifically in association with alcohol use. However, in the absence of liver pathology, it can be difficult to diagnose the etiology. We present a case of a patient with a history of remote alcohol use disorder in remission and Roux-en-Y gastric bypass (RYGB) 20 years prior who was admitted for altered mental status, found to have hyperammonemia with normal liver function tests and a normal liver biopsy. An extensive workup was unremarkable until several weeks into her admission, where she was found to have osmotic demyelination syndrome on head MRI, which was obtained after she developed persistent myoclonus and opsoclonus. Her osmotic demyelination was speculated to be secondary to hyperammonemia, which itself was correlated to her history of RYGB. There have been multiple case reports on the association of late onset hyperammonemic encephalopathy after RYGB; however, no significant correlation has yet to be made between osmotic demyelination syndrome and hyperammonemia.
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Affiliation(s)
- Carly Rosenberg
- Department of Medicine, Hennepin Healthcare, Minneapolis, MN, USA
| | - Michael Rhodes
- Department of Medicine, Hennepin Healthcare, Minneapolis, MN, USA
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Lazebnik LB, Golovanova EV, Alekseenko SA, Bueverov AO, Plotnikova EY, Dolgushina AI, Ilchenko LY, Ermolova TV, Tarasova LV, Lee ED, Tsyganova YV, Akhmedov VA, Ageeva EA, Losev VM, Kupriyanova IN, Serikova SN, Korochanskaya NV, Vologzhanina LG, Zimmerman YS, Sas EI, Zhuravel SV, Okovitiy SV, Osipenko MF, Radchenko VG, Soldatova GS, Sitkin SI, Seliverstov PV, Shavkuta GV, Butova EN, Kozhevnikova SA. Russian Consensus “Hyperammonemia in Adults” (Version 2021). EXPERIMENTAL AND CLINICAL GASTROENTEROLOGY 2021:97-118. [DOI: 10.31146/1682-8658-ecg-187-3-97-118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Justification Given the large number of reports on the peculiarities of liver lesions during the Sars-Cov-2 infection [1], a team of experts who participated in the 23rd Congress of the Scientific Society of Gastroenterologists of Russia and 15 National Congress of Therapists of November 19, 2020 decided to make additions to the Russian Consensus of “Hyperammonemia in Adults” published early 2020 [2, 3].
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Affiliation(s)
- L. B. Lazebnik
- “Moscow State University of Medicine and Density n. a. A. I. Evdokimov”
| | - E. V. Golovanova
- “Moscow State University of Medicine and Density n. a. A. I. Evdokimov”
| | | | - A. O. Bueverov
- I. M. Sechenov first Moscow state medical university (Sechenov university); Moscow regional research and clinical Institute of M. F. Vladimirsky
| | - E. Yu. Plotnikova
- Federal State Budgetary Institution of Higher Education Kemerovo state medical University of the Ministry of health of Russia
| | - A. I. Dolgushina
- “South-Ural State Medical University” of the Ministry of Health of Russia
| | - L. Yu. Ilchenko
- Pirogov Russian National Research Medical University (RNRMU)
| | - T. V. Ermolova
- North- Western state medical University named after I. I. Mechnikov, Ministry of health of the Russian Federation
| | - L. V. Tarasova
- BI of HE “The Surgut State University”; “The Chuvashian State University”
| | - E. D. Lee
- Multifocal Medicine Center of The Central Bank of Russian Federation
| | | | - V. A. Akhmedov
- “Omsk State Medical University” of the Ministry of Health
| | | | | | - I. N. Kupriyanova
- “Ural state medical University” of the Ministry of health of the Russian Federation
| | - S. N. Serikova
- State Budgetary Institution of Health Care “Region Clinic Hospital Nr 2” Health Ministry of Krasnodar Region
| | - N. V. Korochanskaya
- State Budgetary Institution of Health Care “Region Clinic Hospital Nr 2” Health Ministry of Krasnodar Region
| | - L. G. Vologzhanina
- “Perm State Medical University named E. A. Wagner” of the Ministry of Health of Russia
| | - Ya. S. Zimmerman
- “Perm State Medical University named E. A. Wagner” of the Ministry of Health of Russia
| | - E. I. Sas
- Military Medical Academy named after S. M. Kirov
| | - S. V. Zhuravel
- “Moscow State University of Medicine and Density n. a. A. I. Evdokimov”; Scientific Research Institute of Emergency Medicine of N. V. Sklifosovskiy of Healthcare Department of Moscow
| | - S. V. Okovitiy
- Saint Petersburg State Chemical Pharmaceutical University (SPCPA)
| | - M. F. Osipenko
- Public budgetary educational institution of higher education “Novosibirsk State Medical University” of the Ministry of Healthcare of the Russia
| | | | | | - S. I. Sitkin
- North- Western state medical University named after I. I. Mechnikov, Ministry of health of the Russian Federation; Federal Medical and Biological Agency “State Research Institute of Highly Pure Biopreparations”
| | - P. V. Seliverstov
- North- Western state medical University named after I. I. Mechnikov, Ministry of health of the Russian Federation
| | - G. V. Shavkuta
- Rostov State Medical University of the Ministry of Health of Russia
| | - E. N. Butova
- Rostov State Medical University of the Ministry of Health of Russia
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Stergachis AB, Mogensen KM, Khoury CC, Lin AP, Peake RW, Baker JJ, Barkoudah E, Sahai I, Sweetser DA, Berry GT, Krier JB. A retrospective study of adult patients with noncirrhotic hyperammonemia. J Inherit Metab Dis 2020; 43:1165-1172. [PMID: 32713002 DOI: 10.1002/jimd.12292] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/03/2020] [Accepted: 07/22/2020] [Indexed: 12/13/2022]
Abstract
Adult-onset noncirrhotic hyperammonemia (NCH) is poorly understood and has a high morbidity and mortality. To elucidate the etiology and management of NCH, we performed a retrospective analysis of 23 adults (median age 51) with NCH treated between 2014 and 2020 at two academic medical centers. Hyperammonemia was diagnosed in all cases during the evaluation of altered mental status, with 22% presenting with seizures. Peak ammonia levels were >200 μmol/L in 70% of cases. Defects in ammonia metabolism were assessed using urea cycle biochemical testing, germline genetic testing, and testing for urease-producing infectious agents. Ammonia metabolism defects in these cases appear attributable to four major sources: (a) infection with urease-producing organism (n = 5); (b) previously undiagnosed inborn errors of metabolism (IEMs) (n = 4); (c) clinical exposures causing acquired urea cycle dysfunction (n = 6); and (d) unexplained acquired urea cycle dysfunction (uaUCD) (n = 8), as evidenced by biochemical signatures of urea cycle dysfunction without a genetic or clinical exposure. Severe protein malnutrition appeared to be a reversible risk factor for uaUCD. Overall, 13% of our cohort died prior to resolution of hyperammonemia, 26% died after hyperammonemia resolution, 57% survived after having reversible neurological changes, and 4% survived with irreversible neurological changes. Renal replacement therapy for ammonia clearance was often utilized for patients with an ammonia level above 250 μmol/L and patients were frequently empirically treated with antibiotics targeting urea-splitting organisms. Our study demonstrates that acquired urea cycle dysfunction, IEMs and urease-producing infections are major sources of adult-onset NCH and highlights successful management strategies for adult-onset NCH.
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Affiliation(s)
- Andrew B Stergachis
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Kris M Mogensen
- Department of Nutrition, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Charbel C Khoury
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Alexander P Lin
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Roy Wa Peake
- Department of Laboratory Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Joshua J Baker
- Division of Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ebrahim Barkoudah
- Hospital Medicine Unit, Division of General Internal Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Inderneel Sahai
- Division of Medical Genetics and Metabolism, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - David A Sweetser
- Division of Medical Genetics and Metabolism, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gerard T Berry
- Division of Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Joel B Krier
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Lloyd MR, Fenves AZ. Letter to the Editor Responding to "Recurrent Hyperammonemia During Enteral Tube Feeding for Severe Protein Malnutrition After Bariatric Surgery.". Obes Surg 2019; 30:1138-1139. [PMID: 31872337 DOI: 10.1007/s11695-019-04364-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Maxwell R Lloyd
- University of Massachusetts Medical School, Worcester, MA, 01655, USA.
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Nonfatal Hyperammonemic Encephalopathy as a Late Complication of Roux-en-Y Gastric Bypass. Case Rep Gastrointest Med 2019; 2019:9031087. [PMID: 31355019 PMCID: PMC6632496 DOI: 10.1155/2019/9031087] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 06/11/2019] [Indexed: 11/17/2022] Open
Abstract
Roux-en-Y gastric bypass (RYGB) is the most common weight loss procedure performed in the US. Gastric bypass–related hyperammonemia (GaBHA) is a potentially fatal entity, characterized by encephalopathy associated with hyperammonemia and various nutritional deficiencies, which can present at variable time intervals after RYGB. Twenty-five cases of hyperammonemic encephalopathy after bariatric surgery have been previously reported in the literature. We describe the case of a 48-year-old Hispanic woman with no prior history of liver disease, presenting with nonfatal hyperammonemic encephalopathy as a late postoperative complication 20 years after undergoing a RYGB. Hyperammonemic encephalopathy in the absence of known hepatic dysfunction presents a diagnostic dilemma. An early diagnosis and intervention are crucial to decrease morbidity and mortality.
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Abstract
Hyperammonemic encephalopathy is an under-recognized and potentially fatal complication of Roux-en-Y gastric bypass surgery. We present a case of a 42-year-old woman with no known history of liver disease who experienced worsening encephalopathy 1 year after bariatric surgery. She presented with elevated ammonia and severe encephalopathy requiring intubation. A complete workup led to the diagnosis of a urea cycle disorder. The patient was managed with lactulose, ammonia scavenging agents, and nutritional supplementation with a favorable outcome. We report this case to increase awareness of this condition and urge providers to maintain a high clinical suspicion in the appropriate setting.
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Kuin C, den Ouden F, Brandts H, Deden L, Hazebroek E, van Borren M, de Boer H. Treatment of Severe Protein Malnutrition After Bariatric Surgery. Obes Surg 2019; 29:3095-3102. [PMID: 31264177 DOI: 10.1007/s11695-019-04035-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Severe protein malnutrition, with a serum albumin < 25 g/L, is one of the complications that may develop after bariatric surgery. It is associated with increased morbidity and mortality and requires timely diagnosis and appropriate treatment to prevent rapid clinical deterioration. However, evidence-based recommendations for a specific treatment approach are currently not available. The present study describes the efficacy of a newly developed treatment regimen for post-bariatric patients presenting with severe hypoalbuminemia. METHODS A single-centre, retrospective analysis of eleven post-bariatric patients presenting with severe hypoalbuminemia, treated with continuous 24 h nasal-jejunal tube feeding of a medium chain triglyceride (MCT) formulation in combination with pancreatic enzyme supplementation every 3 h. RESULTS Duration of tube feeding ranged from 25 to 156 days (median 64 days) and pancreatic enzyme was supplemented for 22-195 days (median 75 days). An increase in serum albumin levels of 5 g/L and 10 g/L was achieved after a median period of 20 (range 6-26 days) and 36 days (range 21-57 days), respectively. Albumin levels were > 35 g/L after a median period of 58 days (range 44-171 days). CONCLUSION In this case series, a continuous 24-h nasal-jejunal MCT tube feed combined with frequent pancreatic enzyme supplementation was effective in all patients presenting with severe post-bariatric hypoalbuminemia and was not associated with adverse effects.
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Affiliation(s)
- Carlijn Kuin
- Division of Human Nutrition, Wageningen University Research, Wageningen, The Netherlands
| | - Floor den Ouden
- Division of Human Nutrition, Wageningen University Research, Wageningen, The Netherlands
| | - Hans Brandts
- Department of Clinical Nutrition, Rijnstate Hospital, Arnhem, The Netherlands
| | - Laura Deden
- Department of Surgery, Rijnstate Hospital, Arnhem, The Netherlands
- Vitalys Clinic, Velp, The Netherlands
| | - Eric Hazebroek
- Department of Surgery, Rijnstate Hospital, Arnhem, The Netherlands
- Vitalys Clinic, Velp, The Netherlands
| | - Marcel van Borren
- Department of Clinical Chemistry, Rijnstate Hospital, Arnhem, The Netherlands
| | - Hans de Boer
- Department of Internal Medicine, Rijnstate Hospital, Wagnerlaan 55, 6800, TA, Arnhem, The Netherlands.
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Seethapathy H, Fenves AZ. Pathophysiology and Management of Hyperammonemia in Organ Transplant Patients. Am J Kidney Dis 2019; 74:390-398. [PMID: 31040091 DOI: 10.1053/j.ajkd.2019.03.419] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 03/04/2019] [Indexed: 01/28/2023]
Abstract
Neurologic complications are common after solid-organ transplantation, occurring in one-third of patients. Immunosuppression-related neurotoxicity (involving calcineurin inhibitors and corticosteroids), opportunistic central nervous system infections, seizures, and delirium are some of the causes of neurologic symptoms following solid-organ transplantation. An uncommon often missed complication posttransplantation involves buildup of ammonia levels that can lead to rapid clinical deterioration even when treated. Ammonia levels are not routinely checked due to the myriad of other explanations for encephalopathy in a transplant recipient. A treatment of choice for severe hyperammonemia involves renal replacement therapy (RRT), but there are no guidelines on the mode or parameters of RRT for reducing ammonia levels. Hyperammonemia in a transplant recipient poses specific challenges beyond the actual condition because the treatment (RRT) involves significant hemodynamic fluctuations that may affect the graft. In this review, we describe a patient with posttransplantation hyperammonemia and discuss the pathways of ammonia metabolism, potential factors underlying the development of hyperammonemia posttransplantation, and choice of appropriate therapeutic options in these patients.
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Affiliation(s)
- Harish Seethapathy
- Division of Nephrology, Department of Internal Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA.
| | - Andrew Z Fenves
- Division of Nephrology, Department of Internal Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
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Wu YH, Chen IC, Lin JY, Dai ZK. Hyperammonemic encephalopathy in a pediatric patient with Salmonella enteritis and after Roux-en-Y surgery. Kaohsiung J Med Sci 2019; 35:187-188. [PMID: 30887715 PMCID: PMC7165969 DOI: 10.1002/kjm2.12032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 11/22/2018] [Indexed: 11/30/2022] Open
Affiliation(s)
- Yen-Hsien Wu
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - I-Chen Chen
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jao-Yu Lin
- Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Zen-Kong Dai
- Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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13
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Fatal Hyperammonemic Encephalopathy in a Pediatric Patient After Roux-en-Y Gastric Bypass. Obes Surg 2018; 28:2530-2532. [PMID: 29796921 DOI: 10.1007/s11695-018-3305-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Zafar A, Khatri IA. An overview of complications affecting the Central Nervous System following bariatric surgery. ACTA ACUST UNITED AC 2018; 23:4-12. [PMID: 29455214 PMCID: PMC6751905 DOI: 10.17712/nsj.2018.1.20170316] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Bariatric surgery has been considered as an effective treatment for morbid obesity. Apart from procedures related complications, a broad spectrum of neurological disorders affecting any part of neuraxis has been reported following BS. Central nervous system complications, although less common than peripheral nervous system complications, carry significant morbidity and potential mortality. Encephalopathy, behavioral and psychiatric disorders, myelopathy and optic neuropathy are the most frequently reported CNS complications. Early detection and prompt management may improve or completely reverse these neurological complications. It is essential that the treating physicians must be aware of their clinical manifestations and management, so early diagnosis and treatment can prevent patients from suffering significant neurological deficits and even death. This review discusses the clinical manifestations of these complications in detail which will help concerned physician in earlier recognition and hence prevent the delay in specific treatment.
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Affiliation(s)
- Azra Zafar
- Department of Neurology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia. E-mail:
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