Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1983-3-17
pubmed:abstractText
Forty-eight chronically (greater than 3 months) beta-receptor-blocked patients with ischaemic heart disease and/or hypertension were studied on 49 occasions after random distribution to a 4-day, gradual preoperative withdrawal (n = 26) or a continuation (n = 23) of beta-receptor blockers. The patients were scheduled for either a cholecystectomy (n = 28) or a carotid thrombendarterectomy (n = 21) under neurolept anaesthesia. Three patients were excluded from the randomized part of the study due to complications (tachycardia, hypertension, severe angina) after therapy withdrawal. In subgroups, central haemodynamics (beta-receptor blockers withdrawn n = 6, continued n = 8) and creatinine-kinase B (beta-receptor blockers withdrawn n = 9, continued n = 11) were studied. Withdrawal of beta-receptor blockers was associated with high heart rates, supraventricular tachyarrhythmias and a hyperkinetic circulation during pain stimuli. Significantly more postoperative ECG changes (P less than 0.02) indicative of myocardial ischaemia were found than in beta-receptor blocked patients. These patients had low heart rates but also pronounced increases in pulmonary capillary wedge pressures, which in single patients could be associated with myocardial damage. These results imply that beta-receptor blockers should be continued before surgery and that a concomitant vasodilatatory therapy is likely to avoid the drawbacks of an increased cardiac afterload.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0001-5172
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
576-88
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
beta-Receptor blockade and neurolept anaesthesia. Withdrawal vs continuation of long-term therapy in gall-bladder and carotid artery surgery.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial, Case Reports, Research Support, Non-U.S. Gov't