Clinical study on coupling interval of ventricular premature contraction in patients with organic heart disease
| Autor: | Yukihiro Fujimoto, Hiroto Mashiba, Yuji Hirokane, Hiroshi Kotake, Masaharu Fukuki |
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| Rok vydání: | 1991 |
| Předmět: |
Male
Cardiac Complexes Premature medicine.medical_specialty Heart Diseases Physiology medicine.medical_treatment Coronary Disease Mexiletine Antiarrhythmic agent Efficacy Internal medicine medicine Humans Chemotherapy medicine.diagnostic_test Organic heart disease business.industry Middle Aged Myocardial Contraction Anesthesia Hypertension Ambulatory Electrocardiography Ambulatory Cardiology Female Cardiology and Cardiovascular Medicine Disopyramide business Electrocardiography medicine.drug |
| Zdroj: | Japanese Circulation Journal. 55:1174-1180 |
| ISSN: | 1347-4839 0047-1828 |
| Popis: | The characteristics of the coupling interval (CI) of ventricular premature contraction (VPC) were studied in 100 patients with frequent VPCs using 24 h ambulatory ECG recording. All R-R intervals were registered on computer to determine the mean value of CIs (Mean CI) and the standard deviation of CIs (SD-CI). We compared the Mean CI and the SD-CI between idiopathic VPCs and VPCs with organic heart disease (OHD). In addition, we evaluated the efficacy of disopyramide (DP) and mexiletine (MX) and we examined the relationship between the efficacy of these drugs and the characteristics of CI. The Mean CI of VPCs with OHD was longer than that of idiopathic VPCs (530 vs. 494 msec, p less than 0.05). The SD-CI of VPCs with OHD was larger than that of idiopathic VPCs (54.1 vs. 39.3 msec, p less than 0.01). In all treated cases, the drug efficacy was not different between DP (11/18, 61%) and MX (9/19, 47%). However when we isolated cases of OHD, we found a tendency that DP (9/12, 75%) was more effective than MX (7/16, 44%). In cases where DP was administered, the Mean CI of VPCs was not different between effective and ineffective cases, while in cases where MX was administered, the Mean CI of ineffective cases had a tendency to be longer than that of effective cases (552 vs. 506 msec, p less than 0.1).(ABSTRACT TRUNCATED AT 250 WORDS) |
| Databáze: | OpenAIRE |
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