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International Journal of Nephrology and Renovascular Disease

Shunta Hori, Tatsuki Miyamoto, Keiichi Sakamoto, Takuto Shimizu, Kazuki Ichikawa, Yosuke Morizawa, Daisuke Gotoh, Yasushi Nakai, Makito Miyake, Tatsuo Yoneda, Nobumichi Tanaka, Katsunori Yoshida, Kiyohide Fujimoto
Background: Transplant renal vein thrombosis (TRVT) is a severe vascular complication and is caused by various factors, including recipient factors, donor factors, immunosuppression regimens, and surgical techniques. Despite adequate interventions, including thrombolytic therapy or surgical thrombectomy, successful salvage of the allograft is often difficult. We observed a case of TRVT induced by compression of the renal vein immediately after intraoperative abdominal closure. Case presentation: A 41-year-old male underwent ABO-compatible living kidney transplantation...
2018: International Journal of Nephrology and Renovascular Disease
Farid Arman, Marina Barsoum, Umut Selamet, Hania Shakeri, Olivia Wassef, Mira Mikhail, Anjay Rastogi, Ramy M Hanna
Circulating antineutrophil cytoplasmic antibodies (ANCAs) are the central pathogenic mechanism for a group of systemic and renal syndromes called the ANCA-associated vasculitis (AAV). The nomenclature has changed from eponymous labeling to granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis, and microscopic polyangiitis. These syndromes predominantly affect the pulmonary and renal systems. We also review the molecular pathology behind ANCAs and associated antigens and infections...
2018: International Journal of Nephrology and Renovascular Disease
Jose Jayme G De Lima, Luis Henrique W Gowdak, Flavio J de Paula, Henrique Cotchi S Muela, Elias David-Neto, Luiz A Bortolotto
Background: Coronary artery disease (CAD) is prevalent in older patients on dialysis, but the prognostic relevance of coronary assessment in asymptomatic subjects remains undefined. We tested the usefulness of a protocol, based on clinical, invasive, and noninvasive coronary assessment, by answering these questions: Could selecting asymptomatic patients for coronary invasive assessment identify those at higher risk of events? Is CAD associated with a worse prognosis? Methods: A retrospective study including 276 asymptomatic patients at least 65 years old on the waiting list, prospectively evaluated for CAD and followed up until death or renal transplantation, were classified into two groups: 1) low-risk patients who did not undergo coronary angiography (n=63) and 2) patients who did undergo angiography (n=213)...
2018: International Journal of Nephrology and Renovascular Disease
Tamara da Silva Cunha, Ita Pfeferman Heilberg
Bartter syndrome is an inherited renal tubular disorder caused by a defective salt reabsorption in the thick ascending limb of loop of Henle, resulting in salt wasting, hypokalemia, and metabolic alkalosis. Mutations of several genes encoding the transporters and channels involved in salt reabsorption in the thick ascending limb cause different types of Bartter syndrome. A poor phenotype-genotype relationship due to the interaction with other cotransporters and different degrees of compensation through alternative pathways is currently reported...
2018: International Journal of Nephrology and Renovascular Disease
Bodil G Hornstrup, Pia H Gjoerup, Jost Wessels, Thomas G Lauridsen, Erling B Pedersen, Jesper N Bech
Background: Chronic kidney disease (CKD) is often associated with a blunted nocturnal BP decrease and OSA. However, it is not fully clear whether a relationship exists between reduction in renal function and obstructive sleep apnea (OSA) on the one hand and relative nocturnal BP decrease in CKD patients on the other. The aim of this study was to investigate the association between nocturnal BP decrease and renal function, the degree of OSA, vasoactive hormones, and renal sodium handling in CKD3-4 patients and healthy age-matched controls...
2018: International Journal of Nephrology and Renovascular Disease
Mikhail Brovko, Lidia Kozlovskaya, Andrey Pulin, Sergey Moiseev, Victoria Sholomova, Dmitry Shchekochikhin, Daria Gognieva, Ludmila Milovanova, Victor Fomin
Purpose: Experimental studies suggest that the nephrotic syndrome is associated with "vasopressin escape", characterized by low aquaporin-2 (AQP2) expression in the collecting duct despite high vasopressin secretion. We investigated this phenomenon in patients with the nephrotic syndrome. Patients and methods: We recruited 47 patients with proteinuric kidney disease who were distributed into the following four groups: 1) nephrotic syndrome with kidney dysfunction (n=10); 2) nephrotic syndrome with normal kidney function (n=16); 3) partial remission of nephrotic syndrome (n=10); and 4) minimal proteinuria (n=11)...
2018: International Journal of Nephrology and Renovascular Disease
Clifford E Kashtan
Alport syndrome is an inherited disorder of basement membrane collagen IV that frequently results in end-stage renal disease. Patients with Alport syndrome who undergo renal transplantation have generally excellent outcomes. Posttransplant antiglomerular basement membrane nephritis is a rare complication of renal transplantation for Alport syndrome. Because Alport syndrome is a genetic disorder, potential related donors must be carefully evaluated in order to minimize harm.
2018: International Journal of Nephrology and Renovascular Disease
Yu Kataoka, Sinny Delacroix, Samuel Sidharta, Jordan Andrews, Stephen J Nicholls, Costas P Tsioufis, Vasilios Papademetriou, Stephen G Worthley
Aim: Radiofrequency ablation of peri-arterial renal autonomic nerves has been studied as a potential therapeutic option for resistant hypertension. While recent clinical trials have reported its efficacy, there is paucity of data addressing the effects of the procedure on renal arteries, such as changes in vessel and lumen areas. Herein, the effect of atheroma burden on renal arteries after renal denervation was assessed using computed tomography (CT) imaging. Materials and methods: Serial renal artery CT imaging was conducted in 38 patients from the EnligHTN™ I study, a prospective, multicenter study evaluating the efficacy of the EnligHTN multi-electrode radiofrequency ablation catheter in resistant hypertensive subjects...
2018: International Journal of Nephrology and Renovascular Disease
Joshua Dill, Billie Bixby, Huthayfa Ateeli, Benjamin Sarsah, Khushboo Goel, Ryan Buckley, Ilya Finkelshteyn, Bijin Thajudeen, Pradeep V Kadambi, Christian Bime
Background: Patients with acute respiratory distress syndrome (ARDS) who develop acute kidney injury have increased mortality and frequently require renal replacement therapy (RRT). The optimal timing for initiation of RRT after onset of ARDS to improve survival is not known. Methods: We retrospectively reviewed clinical data on patients admitted to our health system over a 2-year period. Individual charts were carefully reviewed to ascertain that patients met the Berlin criteria for ARDS and to categorize RRT utilization...
2018: International Journal of Nephrology and Renovascular Disease
Xueping Wu, Lei Liu, Yaling Guo, Lijuan Yang
Objective: To compare the positive rate of anti-PLA2R antibodies in patients with primary membranous nephropathy (PMN), secondary membranous nephropathy (SMN), and non-membrane nephropathy (non-MN); evaluate serum anti-PLA2R antibodies in the diagnosis of PMN; quantify the serum anti-PLA2R antibody levels during the treatment of PMN patients; and evaluate the clinical value of monitoring changes in serum anti-PLA2R antibody quantification levels. Methods: The kidney tissue was collected by kidney biopsy...
2018: International Journal of Nephrology and Renovascular Disease
Shunji Suzuki, Norio Hanafusa, Kenji Kubota, Ken Tsuchiya, Kosaku Nitta
Background: Fluid overload in chronic kidney disease (CKD) is generally controlled by diuretics, with potentially harmful effects on renal function. The efficacy of tolvaptan, a vasopressin V2-receptor antagonist and aquaretic, has not been evaluated for fluid control in CKD with reduced renal function. Methods: Each patient from a group of 24 CKD patients on tolvaptan 15 mg/d plus conventional diuretics (T group) was matched by age and sex with a patient from a group of 24 CKD patients on conventional nonaquaretic diuretics alone not associated to tolvaptan other than tolvaptan (C group)...
2018: International Journal of Nephrology and Renovascular Disease
Gioacchino Li Cavoli, Giuseppe Mulè, Mario Giuseppe Vallone, Flavia Caputo
Takayasu arteritis (TA) is a chronic vasculitis disease of unknown etiology. Clinically significant renal disease is relatively common, and renovascular hypertension is the major renal problem. The assessment of TA activity is usually challenging because vascular inflammation may progress to fixed vascular injury without findings of active disease. Until now, the best therapeutic options have not been identified. This review highlights the current perspectives of renal involvement in TA.
2018: International Journal of Nephrology and Renovascular Disease
Laís Gabriela Yokota, Beatriz Mota Sampaio, Erica Pires Rocha, André Luís Balbi, Iara Ranona Sousa Prado, Daniela Ponce
Acute kidney injury (AKI) is characterized by a sudden renal dysfunction with consequent increase of nitrogenous products, hydroelectrolytic and acid-base disorders. Its prevalence is high in hospitalized populations (4.9%-7.2%), especially in intensive care units (ICUs). Despite all the technical and therapeutic advances that have occurred in the last few decades, the overall mortality of AKI patients remains high, reaching 80% in ICU patients. Several conditions predispose a patient to progress with AKI, including age, sepsis, surgeries, and comorbidities, such as systemic arterial hypertension, diabetes mellitus, heart disease, neoplasia, and chronic renal disease...
2018: International Journal of Nephrology and Renovascular Disease
Ashraf O Oweis, Sameeha A Alshelleh, Ammar K Daoud, Mahmoud M Smadi, Karem H Alzoubi
Background: Acute kidney injury (AKI) caused by contrast exposure is a common problem, which may cause a significant increase in patients in-hospital stay and therefore the cost of treatment. This study was conducted to evaluate the role of inflammation, inflammatory markers in predicting contrast induced nephropathy (CIN). This is a prospective study that was carried out in a major tertiary referral hospital in Jordan. Methods: Clinical data, blood and urine samples were collected from all patients admitted to the cardiology unit...
2018: International Journal of Nephrology and Renovascular Disease
Matthew J Kaptein, John S Kaptein, Zayar Oo, Elaine M Kaptein
Background: Ultrasound (US) assessment of intravascular volume may improve volume management of dialysis patients. We investigated the relationship of intravascular volume evaluated by inferior vena cava (IVC) US to net volume changes with intermittent hemodialysis (HD) in critically ill patients. Methods: A retrospective cohort of 113 intensive care unit patients in 244 encounters had clinical assessment of intravascular volume followed by US of respiratory/ventilatory variation of IVC diameter, and had HD within 24 h...
2018: International Journal of Nephrology and Renovascular Disease
Stephen Olawale Oguntola, Muzamil Olamide Hassan, Raquel Duarte, Therese Dix-Peek, Caroline Dickens, Gbenga Olorunfemi, Ahmed Vachiat, Graham Paget, Pravin Manga, Saraladevi Naicker
Background: Despite remarkable improvement in renal function attributable to kidney transplantation, the burden of cardiovascular disease (CVD) among kidney transplant recipients (KTRs) remains high in the post-transplant period. Aggressive use of statins in KTRs may make lipoprotein ratios correlate better with atherosclerotic vascular disease (AsVD) when compared with traditional lipid profile parameters. We therefore evaluated the clinical and echocardiographic correlates of AsVD among non-diabetic, stable, black KTRs in South Africa...
2018: International Journal of Nephrology and Renovascular Disease
William L Salzer
Peritoneal dialysis is an effective treatment modality for patients with end-stage renal disease. The relative use of peritoneal dialysis versus hemodialysis varies widely by country. Data from a 2004 survey reports the percentage of patients with end-stage renal disease treated with peritoneal dialysis to be 5%-10% in economically developed regions like the US and Western Europe to as much as 75% in Mexico. This disparity is probably related to the availability and access to hemodialysis, or in some cases patient preference for peritoneal over hemodialysis...
2018: International Journal of Nephrology and Renovascular Disease
Innocent Ijezie Chukwuonye, Okechukwu Samuel Ogah, Ernest Ndukaife Anyabolu, Kenneth Arinze Ohagwu, Ogbonna Collins Nwabuko, Uwa Onwuchekwa, Miracle Erinma Chukwuonye, Emmanuel Chukwuebuka Obi, Efosa Oviasu
Background: The aim of this study was to identify and discuss published population-based studies carried out in Nigeria that have information on the prevalence of chronic kidney disease (CKD) and have also used the Kidney Disease Outcomes Quality Initiative (KDOQI) practice guidelines in defining CKD, with emphasis on the performance of three estimating equations for glomerular filtration rate (GFR) - Modification of Diet in Renal Disease (MDRD), Cock-croft-Gault, and CKD epidemiology collaboration (CKD-EPI) creatinine equation...
2018: International Journal of Nephrology and Renovascular Disease
Larry A Weinrauch, Brian Claggett, Jiankang Liu, Peter V Finn, Matthew R Weir, Daniel E Weiner, John A D'Elia
Background: Tobacco use remains an international health problem with between 10% and 40% of adults currently using tobacco. Given the rising number of patients either awaiting or having received a kidney transplant and the absence of smoking cessation as the criterion for transplantation in guidelines, we explored the association between smoking status and clinical outcomes in kidney transplant recipients. Patients and methods: In this post hoc analysis of the Folic Acid for Vascular Outcome Reduction in Transplant trial, the associations between smoking status, defined as never having smoked, formerly or currently smoking, and both all-cause mortality and graft survival were assessed using Cox proportional hazards models...
2018: International Journal of Nephrology and Renovascular Disease
Joana Gameiro, José Agapito Fonseca, Joana Monteiro Dias, Maria João Melo, Sofia Jorge, José Velosa, José António Lopes
Introduction: Acute kidney injury (AKI) is common in hospitalized patients with cirrhosis and is associated with poor prognosis. A risk prediction score combining values easily measured at admission could be valuable to stratify patients for prevention, monitoring and early intervention, ultimately improving patient care and outcomes. The aim of this study was to develop a risk score for AKI in a cohort of cirrhotic patients. Patients and methods: We cross-examined the data from a retrospective analysis of 186 patients with cirrhosis admitted to the Gastroenterology and Hepatology Service of Centro Hospitalar Lisboa Norte from January 2003 to December 2005...
2018: International Journal of Nephrology and Renovascular Disease
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