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1.
Yonsei Medical Journal ; : 976-980, 2015.
Article in English | WPRIM | ID: wpr-40866

ABSTRACT

PURPOSE: Copeptin has been considered as a useful marker for diagnosis and prediction of prognosis in heart diseases. However, copeptin has not been investigated sufficiently in hemodialysis patients. This study aimed to investigate the general features of copeptin in hemodialysis and to examine the usefulness of copeptin in hemodialysis patients with left ventricular dysfunction (LV dysfunction). MATERIALS AND METHODS: This study included 41 patients on regular hemodialysis. Routine laboratory data and peptides such as the N-terminal of the prohormone brain natriuretic peptide and copeptin were measured on the day of hemodialysis. Body fluid volume was estimated by bioimpedance spectroscopy, and the E/Ea ratio was estimated by echocardiography. RESULTS: Copeptin increased to 171.4 pg/mL before hemodialysis. The copeptin had a positive correlation with pre-dialysis body fluid volume (r=0.314; p=0.04). The copeptin level decreased along with body fluid volume and plasma osmolality during hemodialysis. The copeptin increased in the patients with LV dysfunction more than in those with normal LV function (218.7 pg/mL vs. 77.6 pg/mL; p=0.01). Receiver operating characteristic curve analysis showed that copeptin had a diagnostic value in the hemodialysis patients with LV dysfunction (area under curve 0.737; p=0.02) and that the cut-off value was 125.48 pg/mL (sensitivity 0.7, specificity 0.8, positive predictive value 0.9, negative predictive value 0.6). CONCLUSION: Copeptin increases in hemodialysis patients and is higher in patients with LV dysfunction. We believe that copeptin can be a useful marker for the diagnosis of LV dysfunction in hemodialysis patients.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Biomarkers/blood , Echocardiography , Glycopeptides/blood , Kidney Failure, Chronic/blood , Natriuretic Peptide, Brain/blood , Predictive Value of Tests , Prognosis , ROC Curve , Renal Dialysis/adverse effects , Sensitivity and Specificity , Ventricular Dysfunction, Left/blood
2.
The Journal of the Korean Society for Transplantation ; : 246-249, 2014.
Article in Korean | WPRIM | ID: wpr-111533

ABSTRACT

Kidney transplantation is the preferred treatment in end stage renal disease for autosomal dominant polycystic kidney disease (ADPKD) patients. Removal of the native kidney is not usually recommended for ADPKD patients during a transplantation procedure because the operation time may be prolonged or the risk of bleeding may be higher. Therefore, native kidney removal is indicated for patients with chronic pain by enlarged kidney, frequent complications from cysts, such as infection or bleeding, and renal tumor development. Here, we report a case of a patient whose native kidneys were removed during a kidney transplantation procedure, and multifocal adenomas were identified in the removed kidneys after the procedure.


Subject(s)
Humans , Adenoma , Chronic Pain , Hemorrhage , Kidney , Kidney Failure, Chronic , Kidney Transplantation , Polycystic Kidney Diseases , Polycystic Kidney, Autosomal Dominant
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