Kidney Research and Clinical Practice.2017;36(1):107-107. doi:10.23876/j.krcp.2017.36.1.107
Kidney Research and Clinical Practice
1983 to Present ISSN: 2211-9132
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Kidney Research and Clinical Practice.2017;36(1):105-106. doi:10.23876/j.krcp.2017.36.1.105
Kidney Research and Clinical Practice.2017;36(1):100-104. doi:10.23876/j.krcp.2017.36.1.100
The syndrome of inappropriate antidiuretic hormone secretion (SIADH) is a potential cause of hyponatremia of the central nervous system (CNS). Although SIADH has been reported to be associated with many other central nervous disorders, its association with neuromyelitis optica (NMO) or NMO spectrum disorders are rare. NMO is a demyelinating disorder characterized by optic neuritis and transverse myelitis. Aquaporin-4 (AQP4), which is the target antigen for a NMO autoantibody, is the predominant CNS water channel. However, some NMO patients show seronegative AQP4 antibody results. The spectrum of NMO has been changed, and new findings about the disease have been reported. Here, we report a case of seronegative NMO spectrum disorder associated with SIADH.
Central Nervous System ; Demyelinating Diseases ; Humans ; Hyponatremia ; Inappropriate ADH Syndrome ; Myelitis, Transverse ; Neuromyelitis Optica* ; Optic Neuritis ; Water
Central Nervous System ; Demyelinating Diseases ; Humans ; Hyponatremia ; Inappropriate ADH Syndrome ; Myelitis, Transverse ; Neuromyelitis Optica* ; Optic Neuritis ; Water
HELLP syndrome in a pregnant patient with Gitelman syndrome.
Kidney Research and Clinical Practice.2017;36(1):95-99. doi:10.23876/j.krcp.2017.36.1.95
Gitelman syndrome is characterized by hypokalemia, metabolic alkalosis, hypocalciuria, and hypomagnesemia. The clinical course of Gitelman syndrome in pregnant women remains unclear, but it is thought to be benign. We report here the first Korean case of atypical eclampsia in a 31-year-old who was diagnosed with Gitelman syndrome incidentally during an antenatal screening test. The patient did well during pregnancy despite significant hypokalemia. At 33 weeks’ gestation, the patient exhibited eclampsia, hemolysis, elevated liver enzymes, low platelets (HELLP) syndrome, and renal insufficiency without significant hypertension or proteinuria. We explain this unusual clinical course through a review of the relevant literature.
Adult ; Alkalosis ; Eclampsia ; Female ; Gitelman Syndrome* ; HELLP Syndrome* ; Hemolysis ; Humans ; Hypertension ; Hypokalemia ; Liver ; Pregnancy ; Pregnant Women ; Prenatal Diagnosis ; Proteinuria ; Renal Insufficiency
Adult ; Alkalosis ; Eclampsia ; Female ; Gitelman Syndrome* ; HELLP Syndrome* ; Hemolysis ; Humans ; Hypertension ; Hypokalemia ; Liver ; Pregnancy ; Pregnant Women ; Prenatal Diagnosis ; Proteinuria ; Renal Insufficiency
Neuro-tracing approach to study kidney innervation: a technical note.
Kidney Research and Clinical Practice.2017;36(1):86-94. doi:10.23876/j.krcp.2017.36.1.86
Neuro-tracing approach is a great option to study innervation of the visceral organs including the kidneys. Important factors contributing to the success of this technique include the choice of a neuro-tracer, and delivery methods to result in successful labeling of peripheral sensory and motor ganglia. The neuro-tracer is usually applied directly to the kidney accessed via a surgical opening of the abdominal wall under deep anesthesia. A series of local microinjections of the dye are performed followed by a wound closure, and recovery period from the surgery. An extra care should be taken to prevent neuro-tracer spillage and accidental labeling of the surrounding organs during injections of the dye. Retrograde neuro-tracers like Fast Blue do not cross synapses, therefore, only neuronal bodies located within dorsal root ganglion neurons and major peripheral ganglia will be labeled by this approach. Retrogradely labeled peripheral neurons could be freshly isolated and dissociated for electrophysiological recordings and biochemical analyses (gene and protein expression), whereas the whole fixed ganglia could be sectioned to undergo immunohisto- and immunocytochemical targeted staining.
Abdominal Wall ; Anesthesia ; Ganglia ; Ganglia, Spinal ; Kidney* ; Microinjections ; Neurons ; Synapses ; Wounds and Injuries
Abdominal Wall ; Anesthesia ; Ganglia ; Ganglia, Spinal ; Kidney* ; Microinjections ; Neurons ; Synapses ; Wounds and Injuries
Clinical experience with ultrasound guided angioplasty for vascular access.
Kidney Research and Clinical Practice.2017;36(1):79-85. doi:10.23876/j.krcp.2017.36.1.79
BACKGROUND: The use of ultrasound guided percutaneous transluminal angioplasty (UG-PTA), which use ultrasound as an imaging modality, is an evolving strategy. But, in Korea, this method is rarely used. We report our experiences with UG-PTA with respect to technical success rates and complication rates compared to conventional PTA (C-PTA), performed between 2010 and 2015 at Samsung Changwon Hospital, Korea. METHODS: In our series, 53 cases of UG-PTA and 90 cases of C-PTA were reviewed, respectively. Cases of central vein stenosis, cephalic arch stenosis, arterial stenosis and thrombosis were excluded. However, cases of juxta-anastomotic stenosis and outflow vein stenosis were included. RESULTS: Technical success was achieved in 96.2% (51 of 53) of cases in the UG-PTA group and in 93.3% (84 of 90) of cases in the C-PTA group, respectively (P = 0.710). Technical failure was experienced in a total 8 cases (UG-PTA group: 2/53, 3.8%; C-PTA group: 6/90, 6.7%). No differences were observed in complications. CONCLUSION: Duplex ultrasound-guided angioplasty for dialysis access in the outpatient setting is feasible, safe, and effective for peripheral venous stenotic lesions. It offers many advantages over conventional angiographic procedures, and, in the future, it has great potential to play a significant role in the management of these challenging patients.
Angioplasty* ; Constriction, Pathologic ; Dialysis ; Gyeongsangnam-do ; Humans ; Korea ; Methods ; Outpatients ; Thrombosis ; Ultrasonography* ; Veins
Angioplasty* ; Constriction, Pathologic ; Dialysis ; Gyeongsangnam-do ; Humans ; Korea ; Methods ; Outpatients ; Thrombosis ; Ultrasonography* ; Veins
Kidney Research and Clinical Practice.2017;36(1):68-78. doi:10.23876/j.krcp.2017.36.1.68
BACKGROUND: We investigated the long-term effect of AST-120, which has been proposed as a therapeutic option against renal disease progression, in patients with advanced chronic kidney disease (CKD). METHODS: We performed post-hoc analysis with a per-protocol group of the K-STAR study (Kremezin study against renal disease progression in Korea) that randomized participants into an AST-120 and a control arm. Patients in the AST-120 arm were given 6 g of AST-120 in three divided doses, and those in both arms received standard conventional treatment. RESULTS: The two arms did not differ significantly in the occurrence of composite primary outcomes (log-rank P = 0.41). For AST-120 patients with higher compliance, there were fewer composite primary outcomes: intermediate tertile hazard ratio (HR) 0.62, 95% confidence interval (CI) 0.38 to 1.01, P = 0.05; highest tertile HR 0.436, 95% CI 0.25 to 0.76, P = 0.003. The estimated glomerular filtration rate level was more stable in the AST-120 arm, especially in diabetic patients. At one year, the AST-120-induced decrease in the serum indoxyl sulfate concentration inversely correlated with the occurrence of composite primary outcomes: second tertile HR 1.59, 95% CI 0.82 to 3.07, P = 0.17; third tertile HR 2.11, 95% CI 1.07 to 4.17, P = 0.031. Furthermore, AST-120 showed a protective effect against the major cardiovascular adverse events (HR 0.51, 95% CI 0.26 to 0.99, P = 0.046). CONCLUSION: Long-term use of AST-120 has potential for renal protection, especially in diabetic patients, as well as cardiovascular benefits. Reduction of the serum indoxyl sulfate level may be used to identify patients who would benefit from AST-120 administration.
Arm ; Compliance ; Disease Progression* ; Glomerular Filtration Rate ; Humans ; Indican ; Korea* ; Renal Insufficiency, Chronic
Arm ; Compliance ; Disease Progression* ; Glomerular Filtration Rate ; Humans ; Indican ; Korea* ; Renal Insufficiency, Chronic
Kidney Research and Clinical Practice.2017;36(1):58-67. doi:10.23876/j.krcp.2017.36.1.58
BACKGROUND: Previous studies have shown that a higher resistive index (RI) on renal duplex ultrasonography was related with renal progression and acute kidney injury, especially in patients with chronic kidney disease (CKD) using an angiotensin converting enzyme inhibitor (ACEI) or angiotensin receptor antagonist (ARB). We evaluated whether a RI value is a predictive factor for renal progression regardless of ACEI or ARB medication in patients with moderate renal dysfunction. METHODS: We retrospectively analyzed 119 patients with moderate renal dysfunction that had been evaluated with renal duplex ultrasonography from February 2011 to April 2015. Moderate renal dysfunction was defined as a stage 3 to 4 CKD. Renal progression was defined as a doubling of the baseline serum creatinine (sCr), a decrease of baseline glomerular filtration rate by > 50%, or initiation of renal replacement therapy. RESULTS: The mean age was 64.7 ± 11.0 years and sCr level was 2.1 ± 1.2 mg/dL. The RI ≥ 0.79 group showed a higher incidence of renal progression (P = 0.004, log-rank test) compared with the RI < 0.79 group, irrespective of ACEI or ARB usage. In the Cox proportional hazard model, RI ≥ 0.79 was an independent prognostic factor after adjusting for age, sex, diabetes mellitus, sCr, proteinuria, and use of ACEI or ARB (hazard ratio, 4.88; 95% confidence interval, 1.06–22.53; P = 0.043). CONCLUSION: RI ≥ 0.79 on the renal duplex ultrasonography can be a helpful predictor for renal progression in patients with moderate renal dysfunction, regardless of their ACEI or ARB usage.
Acute Kidney Injury ; Angiotensin Receptor Antagonists ; Angiotensin-Converting Enzyme Inhibitors ; Angiotensins* ; Creatinine ; Diabetes Mellitus ; Glomerular Filtration Rate ; Humans ; Incidence ; Peptidyl-Dipeptidase A* ; Proportional Hazards Models ; Proteinuria ; Renal Insufficiency, Chronic ; Renal Replacement Therapy ; Retrospective Studies ; Ultrasonography ; Ultrasonography, Doppler, Duplex
Acute Kidney Injury ; Angiotensin Receptor Antagonists ; Angiotensin-Converting Enzyme Inhibitors ; Angiotensins* ; Creatinine ; Diabetes Mellitus ; Glomerular Filtration Rate ; Humans ; Incidence ; Peptidyl-Dipeptidase A* ; Proportional Hazards Models ; Proteinuria ; Renal Insufficiency, Chronic ; Renal Replacement Therapy ; Retrospective Studies ; Ultrasonography ; Ultrasonography, Doppler, Duplex
Kidney Research and Clinical Practice.2017;36(1):48-57. doi:10.23876/j.krcp.2017.36.1.48
BACKGROUND: Hepatic steatosis measured with controlled attenuation parameter (CAP) using transient elastography predicts metabolic syndrome in the general population. We investigated whether CAP predicted metabolic syndrome in chronic kidney disease patients. METHODS: CAP was measured with transient elastography in 465 predialysis chronic kidney disease patients (mean age, 57.5 years). RESULTS: The median CAP value was 239 (202–274) dB/m. In 195 (41.9%) patients with metabolic syndrome, diabetes mellitus was more prevalent (105 [53.8%] vs. 71 [26.3%], P < 0.001), with significantly increased urine albumin-to-creatinine ratio (184 [38–706] vs. 56 [16–408] mg/g Cr, P = 0.003), high sensitivity C-reactive protein levels (5.4 [1.4–28.2] vs. 1.7 [0.6–9.9] mg/L, P < 0.001), and CAP (248 [210–302] vs. 226 [196–259] dB/m, P < 0.001). In multiple linear regression analysis, CAP was independently related to body mass index (β = 0.742, P < 0.001), triglyceride levels (β = 2.034, P < 0.001), estimated glomerular filtration rate (β = 0.316, P = 0.001), serum albumin (β = 1.386, P < 0.001), alanine aminotransferase (β = 0.064, P = 0.029), and total bilirubin (β = −0.881, P = 0.009). In multiple logistic regression analysis, increased CAP was independently associated with increased metabolic syndrome risk (per 10 dB/m increase; odds ratio, 1.093; 95% confidence interval, 1.009–1.183; P = 0.029) even after adjusting for multiple confounding factors. CONCLUSION: Increased CAP measured with transient elastography significantly correlated with and could predict increased metabolic syndrome risk in chronic kidney disease patients.
Alanine Transaminase ; Bilirubin ; Body Mass Index ; C-Reactive Protein ; Diabetes Mellitus ; Elasticity Imaging Techniques ; Fatty Liver* ; Glomerular Filtration Rate ; Humans ; Linear Models ; Logistic Models ; Odds Ratio ; Renal Insufficiency, Chronic* ; Serum Albumin ; Triglycerides
Alanine Transaminase ; Bilirubin ; Body Mass Index ; C-Reactive Protein ; Diabetes Mellitus ; Elasticity Imaging Techniques ; Fatty Liver* ; Glomerular Filtration Rate ; Humans ; Linear Models ; Logistic Models ; Odds Ratio ; Renal Insufficiency, Chronic* ; Serum Albumin ; Triglycerides
Kidney Research and Clinical Practice.2017;36(1):39-47. doi:10.23876/j.krcp.2017.36.1.39
BACKGROUND: Many epidemiologic studies have reported on the controversial concept of the obesity paradox. The presence of acute kidney injury (AKI) can accelerate energy-consuming processes, particularly in patients requiring continuous renal replacement therapy (CRRT). Thus, we aimed to investigate whether obesity can provide a survival benefit in this highly catabolic condition. METHODS: We conducted an observational study in 212 patients who had undergone CRRT owing to various causes of AKI between 2010 and 2014. The study end point was defined as death that occurred within 30 days after the initiation of CRRT. RESULTS: Patients were categorized into three groups according to tertiles of body mass index (BMI). During ≥30 days after the initiation of CRRT, 39 patients (57.4%) in the highest tertile died, as compared with 58 patients (78.4%) in the lowest tertile (P = 0.02). In a multivariable analysis adjusted for cofounding factors, the highest tertile of BMI was significantly associated with a decreased risk of death (hazard ratio [HR], 0.57; 95% confidence interval [CI], 0.37–0.87; P = 0.01). This significant association remained unaltered for 60-day (HR, 0.64; 95% CI, 0.43–0.94; P = 0.03) and 90-day mortality (HR, 0.66; 95% CI, 0.44–0.97; P = 0.03). CONCLUSION: This study showed that a higher BMI confer a survival benefit over a lower BMI in AKI patients undergoing CRRT.
Acute Kidney Injury* ; Body Mass Index* ; Epidemiologic Studies ; Humans ; Mortality* ; Obesity ; Observational Study ; Renal Replacement Therapy*
Acute Kidney Injury* ; Body Mass Index* ; Epidemiologic Studies ; Humans ; Mortality* ; Obesity ; Observational Study ; Renal Replacement Therapy*
Country
Republic of Korea
Publisher
Korean Society of Nephrology
ElectronicLinks
http://www.krcp-ksn.com/Editor-in-chief
Gheun-Ho Kim
Abbreviation
Kidney Res Clin Pract
Vernacular Journal Title
ISSN
2211-9132
EISSN
2211-9140
Year Approved
2007
Current Indexing Status
Currently Indexed
Start Year
1983
Description
Kidney Research and Clinical Practice (formerly The Korean Journal of Nephrology), the official journal of the Korean Society of Nephrology, is an international, peer-reviewed journal published in English. To provide a venue for dissemination of knowledge and discussion of topics related to basic renal science and clinical practice, the journal considers articles on all aspects of clinical nephrology and hypertension, as well as related molecular genetics, anatomy, pathology, physiology, pharmacology, and immunology. In particular, the journal focuses on translational renal research that helps bridge laboratory discovery with the diagnosis and treatment of human kidney disease. Authors are encouraged to submit reports on topics in basic science with possible clinical applicability and papers on the pathophysiological basis of disease processes of the kidney. Apart from high-quality original research, the journal publishes invited reviews on up-to-date topics and case reports of special interest. There is one volume and 4 issues per year beginning in March.
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