Analysis of continuous ECGs in patients under treatment with continuous ambulatory peritoneal dialysis (CAPD)

• Published in: Journal of Japanese Society for Dialysis Therapy Vol. 19; no. 8; pp. 769 - 773
• Main Authors: Soejima, Michimasa, Yasuda, Kohei, Sato, Shigeki, Mizuguchi, Masato, Ohta, Makoto, Kameda, Chikako, Kawaguchi, Yoshindo, Miura, Yasuhiko, Miyahara, Tadashi
• Format: Journal Article
• Language: Japanese
• Published: The Japanese Society for Dialysis Therapy 1986
• Subjects: 24-hour electrocardiographic recording; CAPD; ventricular premature beat
• ISSN: 0911-5889; 1884-6211
• DOI: 10.4009/jsdt1985.19.769

Frequency of premature ventricular contractions (PVC), total hourly cardiac beats (TCB) and variations in heart beats (VHR) were studied in patients with chronic renal failure undergoing long-term CAPD by means of Holter ECG recording. Subjects consisted of 20 patients (15 males and 5 females, mean age 48 years). The average duration of CAPD in those patients was 16±13 months. Among them, 13 patients had hypertension, and 10 had left ventricular hypertrophy. Other cardiovascular complications included 3 cases of coronary insufficiency, and one each of complete right bundle branch block, old myocardial infarction, ventricular septal defect and hypertrophic cardiomyopathy. During the observation period no symptoms related to the cardiovascular system were noted. TCBs were the highest in the daytime and the lowest at midnight (5, 393±815beats/h and 4, 526±725beats/h, respectively). Althuogh this pattern resembled that of healthy persons, there was a tendency for the TCBs to be increased. VHR seemed normal except for a certain period in which the variation was small. Eleven patients demonstrated PVCs; however, none of them had critical, frequent, multifocal, ectopic beats or R-on-T phenomenon. Decreases in TCB and VHR were observed in some aged or diabetic patients. On the other hand, their day-and nighttime patterns were close to normal, and the frequency of PVC was not siginificantly high. Manipulations of daily dialysate exchange had minimal influence on the cardiovascular system in patients under CAPD. We have thus concluded that CAPD is useful, particularly in uremic patients with cardiovascular complications.