Assessment of Autonomic Disturbance by 24-hour Heart Rate Variability in Patients with Liver Cirrhosis.
- Author:
Chul Woo KIM
;
Jae Goo KWON
;
Min Su CHAE
;
Hye Sook AHN
;
Young Jung CHO
;
Chang Won LEE
;
Duk Whan JANG
;
Moo Yong RHEE
;
Hak San KIM
;
Hong Soon LEE
;
Soo Woong YOO
- Publication Type:Original Article
- Keywords:
Heart rate variabillity;
Autonomic disturbance;
Liver cirrhosis
- MeSH:
Autonomic Nervous System;
Blood Pressure;
Cardiac Output;
Circadian Rhythm;
Diabetes Mellitus;
Diagnosis;
Heart Rate*;
Heart*;
Humans;
Liver Cirrhosis*;
Liver*;
Myocardial Infarction;
Reflex;
Respiration;
Vascular Resistance
- From:Korean Journal of Medicine
1997;53(3):371-379
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: Heart rate variability(HRV) is helpful to diagnosis autonomic disturbance and sympathetic-parasympathetic imbalance in patients with myocardial infarction and diabetes mellitus. Patients with liver cirrhosis demonstrate reduced blood pressure despite increased heart rate and increased cardiac output, indicating a fall in peripheral vascular resistance. Autonomic disturbance may contribute to this phenomenon. The aim of the present study is to evaluate the degree of autonomic disturbance and the circadian rhythm of autonomic nervous system by estimating HRV with 24 hour-Holter recorder, METHODS: 24 hour-HRV with Del Mar Avionics 563 Holter recorder and cardiovascular reflex tests were carried out on 32 patients with liver cirrhosis and 20 control subjects. We evaluated the presence of autonomic disturbance, and assessed quantitatively the autonomic disturbance. RESULTS: 1) Among cardiovascular reflex tests, Valsalva test, standing test and deep breathing test were showed a significantly decreased response in liver cirrhosis compared with control groups. 2) The standard deviation of 24hours average R-R intervals were showed a significantly decrease in liver cirrhosis than control groups(P<0.0001). The HRV of low frequency(LF. P<.D.001), high frequency(HF, P<0.0001) and total power spectral density (P<0.0001) in liver cirrhosis were statistically lower than control. 3) The LF/HF ratio of patients with liver cirrhosis was showed higher than control at night CONCLUSION: Non-invasive assessment of 24 hour-HRV has a few advantages in the diagnosis and degree of autonomic disturbance, evaluation of diurnal variation of autonomic tone.
