| Transient atrioventricular block after release of aortic cross-clamp. | |
| | |
MedLine Citation:
|
PMID: 7802300 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
To determine the incidence of atrioventricular (A-V) block, 86 patients, aged 58.9 +/- 10.4 yr, undergoing elective coronary artery bypass grafting (CABG) during aortic cross-clamping (ACC) and cold potassium cardioplegia were investigated. The incidence and duration of complete A-V block after release of the aortic cross-clamp was monitored. Twenty-four percent of the patients developed complete A-V block that required temporary pacing for a mean time of 66 +/- 39 min. The volume of cardioplegia used was not significantly different between the patients who developed A-V block and the patients who had no block. The serum potassium level at the time of release of the aortic cross-clamp was within the normal range in both groups. Six factors were correlated with the development of A-V block: old age, preparation by a combination of beta-adrenergic blockers and calcium channel blockers, preoperative bradycardia, the number of vessels grafted, as well as the duration of ACC. Also, the serum potassium level at the time of release of the aortic cross-clamp was significantly higher in the patients who developed A-V block. The high incidence of A-V block in elderly patients undergoing multiple coronary vessel grafting during a prolonged ACC time suggests that suboptimal myocardial preservation may be the main predisposing factor. |
| | |
Authors:
|
A S Baraka; S K Taha; V K Yazbeck; P A Rizkallah; J P Zughbi; M J Aouad; C S Rouhana; A M Nader |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Anesthesia and analgesia Volume: 80 ISSN: 0003-2999 ISO Abbreviation: Anesth. Analg. Publication Date: 1995 Jan |
Date Detail:
|
Created Date: 1995-01-24 Completed Date: 1995-01-24 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 1310650 Medline TA: Anesth Analg Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 54-7 Citation Subset: AIM; IM |
Affiliation:
|
Department of Anesthesiology, American University of Beirut, Lebanon. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aged Aorta Causality Constriction Coronary Artery Bypass* Drug Therapy, Combination Heart Block / epidemiology, etiology* Heart Rate Humans Incidence Middle Aged Nifedipine / administration & dosage, therapeutic use Potassium / blood Propranolol / administration & dosage, therapeutic use |
| Chemical | |
Reg. No./Substance:
|
21829-25-4/Nifedipine; 525-66-6/Propranolol; 7440-09-7/Potassium |
| Comments/Corrections | |
Comment In:
|
Anesth Analg. 1995 Nov;81(5):1118
[PMID:
7486071
]
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Effects of adenosine infusion on systolic and diastolic left ventricular function after coronary art...
Next Document: Intravenous midazolam suppresses noxiously evoked activity of spinal wide dynamic range neurons in c...