Perioperative Ventricular Arrhythmias in Patients Undergoing Partial Left Ventriculectomy
| Autor: | Akira T. Kawaguchi, Shinichiro Shimura, Hahhy Donias, Randas J.V. Batista, Teruhisa Tanabe, Shirosaku Koide, Toshimi Ujiie |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Adult
Male Pulmonary and Respiratory Medicine medicine.medical_specialty Cardiac output Adolescent Heart Ventricles Doppler echocardiography Amiodarone Ventricular tachycardia Severity of Illness Index Risk Factors Internal medicine Severity of illness medicine Humans cardiovascular diseases Child Aged Partial left ventriculectomy medicine.diagnostic_test business.industry Incidence Incidence (epidemiology) Perioperative Middle Aged medicine.disease Echocardiography Doppler Treatment Outcome Anesthesia Electrocardiography Ambulatory Tachycardia Ventricular cardiovascular system Cardiology Female Surgery Cardiology and Cardiovascular Medicine business Brazil medicine.drug |
| Zdroj: | Journal of Cardiac Surgery. 16:97-103 |
| ISSN: | 1540-8191 0886-0440 |
| DOI: | 10.1111/j.1540-8191.2001.tb00493.x |
| Popis: | Background: Although incidence of ventricular arrhythmias after partial left ventriculectomy (PLV) has been reported, there are no studies comparing incidence before and after PLV. Although operative scars may give rise to arrhythmias, improved energetic efficiency after PLV may decrease their incidence. Methods: Pre- and postoperative ventricular arrhythmias were monitored by Holter ECG and analyzed in 17 patients undergoing PLV in Curitiba, Brazil. Results: Although total 24-hour heart beat (THB) increased significantly (p = 0.018), ventricular premature contractions (VPCs) decreased markedly (p = 0.036), excluding one patient dying in low cardiac output (LOS) who had terminal arrhythmias increased multifold. In the remaining 16 patients, VPC pairs were also reduced significantly on the average (p = 0.038). In contrast, ventricular tachycardia (VT; more than three consecutive VPCs) disappeared in five patients, decreased in two patients, and newly occurred in four patients, with five patients showing no change; one of them developed a prolonged VT, successfully reversed by external cardioversion. Conclusions: Despite notable significant increase in THB immediately after PLV, PVC and PVC pairs were significantly decreased in contrast to VT, which disappeared in some patients and newly occurred in other patients, remaining constant on the average. Sustained VT occurring in a patient with all other arrhythmias suppressed may suggest a unique electrophysiological substrate, may justify prophylactic use of amiodarone or an implantable cardioverter-defibrillator, and may underscore the importance of further and extended studies. |
| Databáze: | OpenAIRE |
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