Publications by authors named "Hark Rim"

Interest in kidney transplant studies in the elderly population is increasing as more research has been conducted on the immune system. With this review, we hope to encourage the need for research on kidney transplantation in the elderly.

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Article Synopsis
  • - Alport syndrome is a rare genetic disorder, affecting roughly 1 in 50,000 people, primarily characterized by microscopic hematuria, chronic kidney disease (CKD), and complications outside the kidneys.
  • - It is caused by mutations in specific genes (COL4A3, COL4A4, COL4A5), leading to disruptions in collagen IV formation, and can be inherited in various patterns, including X-linked and autosomal forms.
  • - Diagnosis is done through urinalysis, histology, and genetic testing, and while there’s no specific treatment, early detection can significantly improve outcomes, highlighting the critical role of genetic testing for better management of the condition.
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Background: Patients with end-stage renal disease (ESRD) who are on hemodialysis (HD) have reduced vascular compliance and are likely to develop heart failure (HF). In this study, we estimated the prevalence of HF pre- and post-HD in ESRD using the current guidelines.

Methods: We prospectively investigated HF in ESRD patients on HD using echocardiography pre- and post-HD.

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Background: Autonomic dysfunction as a long-term complication may occur in end-stage kidney disease (ESKD) patients and can be diagnosed using heart rate variability (HRV) analyzed from electrocardiogram (ECG) recordings. There is limited data about HRV using real-time ECG to predict hemodialysis (HD) efficiency in patients with ESKD who are routinely doing HD in the real world.

Methods: A total of 50 patients (62.

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Currently, various immunosuppressive drugs are used in organ transplantation. In particular, antithymoglobulin is a widely used drug in kidney transplantation in Korea, accounting for 20% of all induction therapy. According to existing studies, antithymoglobulin induction therapy has several advantages and disadvantages compared with other immunotherapies depending on the kidney transplant situation (dead donor, living donor, low-risk recipient, and high-risk recipient) or antithymoglobulin dose.

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It is crucial to understand the impact of DPP-4 inhibitors on the immune system, particularly T cell differentiation, maturation, and proliferation, in patients with type 2 diabetes and CKD. This prospective observational study aimed to investigate the distribution of immune cells (particularly regulatory T cells), following the administration of gemigliptin, a DPP-4 inhibitor, in patients with type 2 diabetes mellitus and chronic kidney disease. We enrolled 28 patients with type 2 diabetes, aged 20 to 69, who had been taking a daily dose of 50mg gemigliptin for <3 months and had chronic kidney disease stages 3, 4, or 5, including that undergoing dialysis.

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The development of immunosuppressants has enabled remarkable progress in kidney transplantation (KT). However, current immunosuppressants cannot induce immune tolerance, and their nonspecific immunosuppressive effects result in many adverse effects. Regulatory T cells (Tregs) play crucial roles in controlling all specific immune responses.

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Article Synopsis
  • Many patients with end-stage renal disease (ESRD) on hemodialysis (HD) are at risk for heart failure, and this study focused on identifying factors linked to acute decompensated heart failure (ADHF) in these patients.
  • The study involved reviewing medical records of ESRD patients on HD, comparing those admitted for ADHF with those who were not, analyzing various health metrics in both groups.
  • Results indicated that a higher tricuspid regurgitation (TR) jet velocity was a strong predictor of ADHF, while measures like left ventricular ejection fraction (LVEF) were not significant indicators in this context.
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Background: We evaluated the efficacy and safety of eculizumab in comparison with plasmapheresis and intravenous immunoglobulin therapy in renal transplant recipients diagnosed with antibody-mediated rejection (AMR).

Methods: This was a multicenter, open-label, prospective, randomized analysis. The patients were randomized by therapy type (eg, eculizumab infusions or standard of care [SOC]: plasmapheresis/intravenous immunoglobulin).

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Objectives: Previous studies have shown that kidney transplant recipients with a high body mass index (BMI) have inferior graft and patient outcomes compared to patients with a lower BMI. We hypothesized that there would be secular improvements in outcomes among high BMI recipients. We used data from the United Network for Organ Sharing (UNOS) to determine whether obesity affects patient and graft outcomes following kidney transplantation in the modern immunosuppressive era.

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Purpose: Renal dysfunction is a common complication and one of the factors that affects the outcomes of liver transplantation (LT). The aim of this study was to review the clinical course of recipients of LT who needed peritransplant dialysis at our center.

Methods: We compared the clinical demographics, morbidity, and mortality between patients who required and those who did not require peritransplant dialysis among 26 recipients of LT from May 2015 to February 2018 at our center.

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Background: The purpose of this study was to assess the role of hypophosphatemia in major clinical outcomes of patients treated with low- or high-intensity continuous renal replacement therapy (CRRT).

Methods: We performed a retrospective analysis of data collected from 492 patients. We divided patients into two CRRT groups based on treatment intensity (greater than or equal to or less than 40 mL/kg/hour of effluent generation) and measured serum phosphate level daily during CRRT.

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Background: Several registries and centers have reported the results of renal biopsies from different parts of the world. As there are few data regarding the epidemiology of glomerulonephritis (GN) in South Korea, we conducted this study on renal biopsy findings during the last 20 years from a single center.

Methods: Data for 818 patients who underwent renal biopsy at our center between 1992 and 2011 were collected retrospectively.

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Background: Pityriasis lichenoides (PL)-like skin lesions rarely appear as a specific manifestation of mycosis fungoides (MF).

Objective: We investigated the clinicopathological features, immunophenotypes, and treatments of PL-like MF.

Methods: This study included 15 patients with PL-like lesions selected from a population of 316 patients diagnosed with MF at one institution.

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Incidence of AKI in hospitalized patients with cancer is increasing, but there have been few studies on AKI in patients with cancer. We conducted a retrospective cohort study in a South Korean tertiary care hospital. A total of 2211 consecutive patients (without cancer 61.

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Background/aims: Aldosterone antagonists have been proven to be efficient in the management of hypertension and the reduction of proteinuria; however, they are not widely used because of the risk of hyperkalemia. We assessed the predictors of hyperkalemia risk following hypertension control using aldosterone blockade in the presence or absence of chronic kidney disease (CKD).

Methods: A total of 6,575 patients with hypertension treated between January 1, 2000, and November 30, 2012, were evaluated for the safety of an aldosterone-blocking agent (spironolactone) added to preexisting blood pressure-lowering regimens.

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Context: Pheochromocytoma is a catecholamine-producing tumor characterized by hypertension, headache, tachycardia, excessive diaphoresis and angina. The thunderclap headache is so named because the pain strikes suddenly and severely. Although the symptoms of bladder pheochromocytoma are rather evident, the diagnosis of this rare neuroendocrine tumor can be missed.

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We examined the relationships between Geriatric Nutritional Risk Index (GNRI), total lymphocyte count (TLC), and mortality in hemodialysis (HD) patients. We examined GNRI and TLC in 120 maintenance HD patients and followed these patients for 120 months. Predictors of all-cause death were examined using life table analysis and the Cox proportional hazards model.

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CONTEXT Tacrolimus is a potent immunosuppressive drug often administered to transplant recipient patients and exhibits a variety of adverse cardiovascular effects. CASE REPORT We report a case of a 53-year-old Asian female who developed various arrhythmic phenomena including atrial premature complexes and supraventricular tachycardia after administration of tacrolimus. CONCLUSION Tacrolimus-associated arrhythmia after kidney transplantation may be life-threatening, and so patients undergoing this procedure should be carefully monitored.

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Hiccups are a spasmodic contraction of the diaphragm and usually transient phenomenon that affects nearly everyone. When hiccups develop, the patients are administrated antispastic agent, such as baclofen. Baclofen is widely used for the treatment of this spastic movement disorders.

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Background: The objective of this study was to examine the correlation between arterial blood gas (ABG) and peripheral venous blood gas (VBG) samples for all commonly used parameters in patients admitted to a medical intensive care unit (ICU).

Methods: A single-center, prospective trial was carried out in a medical ICU in order to determine the level of correlation of ABG and peripheral VBG measurements. A maximum of five paired ABG-VBG samples were obtained per patient to prevent a single patient from dominating the data set.

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A 71-year-old man was admitted to our hospital for two weeks due to edema in both legs. A bone marrow aspiration test confirmed a diagnosis of multiple myeloma. The result of the patient's renal biopsy showed fibrillary glomerulonephritis (FGN).

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In most continuous renal replacement therapy (CRRT) studies, end-stage renal disease (ESRD) patients were excluded and the outcomes of patients with ESRD treated with chronic hemodialysis (HD) were unknown. The purposes of this study were to (1) evaluate short-term patient survival and (2) compare the survival of conventional HD patients needing CRRT with the survival of non-ESRD patients in acute kidney injury (AKI) requiring CRRT. We evaluated adults (>18 years) requiring CRRT who were treated in the intensive care unit (ICU) at Kosin University Gospel Hospital from January 1, 2009 to December 31, 2010.

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Our objective was to examine the association between the Geriatric Nutritional Risk Index (GNRI) and mortality in Korean hemodialysis (HD) patients. We examined the GNRI of 120 maintenance HD patients and followed these patients for 120 months. Predictors for all-cause death were examined using life table analysis and the Cox proportional hazards model.

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