Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1993-10-28
pubmed:abstractText
Morphine and tubocurarine may release histamine by direct mast cell degranulation which may result in systemic effects such as cutaneous flushing, local wheal and flare formation and hypotension. This randomised, double-blind study examined whether preoperative combined oral terfenadine (60 mg) and ranitidine (150 mg) attenuates the reduction in blood pressure and cutaneous flushing after the administration of tubocurarine and morphine in 60 patients undergoing elective gynaecological surgery. In addition, investigation was made of whether tubocurarine and morphine cause a significant decrease in gastric pH in comparison to the nonhistamine-releasing agents fentanyl and vecuronium. Patients were randomly assigned to one of three groups receiving either pre-operative terfenadine and ranitidine and intra-operative tubocurarine and morphine (group A); pre-operative placebo and intra-operative tubocurarine and morphine (group B); pre-operative placebo and intra-operative fentanyl and vecuronium (group C). Compared to group B, group A had less hypotension and tachycardia but no significant decrease in cutaneous flushing immediately following morphine and tubocurarine (p > 0.05). There were no significant differences in haemodynamic changes between the groups A and C. In those patients not pretreated with terfenadine and ranitidine (groups B and C), gastric pH decreased between 5 and 10 min following bolus administration of morphine and tubocurarine (group B), whereas patients receiving fentanyl and vecuronium (group C) had an increase in gastric pH. This suggests that histamine release following administration of morphine and tubocurarine is sufficient to increase gastric acidity.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0003-2409
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
758-62
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
The influence of the H1 and H2 receptor antagonists, terfenadine and ranitidine on the hypotensive and gastric pH effects of the histamine releasing drugs, morphine and tubocurarine.
pubmed:affiliation
Section of Anaesthesia, Wellington School of Medicine, New Zealand.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial, Research Support, Non-U.S. Gov't