Linked Life Data

8887580

Source:http://linkedlifedata.com/resource/pubmed/id/8887580

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4 Pt 1
pubmed:dateCreated
1996-12-6
pubmed:abstractText
Stimulation of the airways of asthmatic individuals causes severe bronchoconstriction, which is in part neurally mediated via the vagus nerve. Local anesthetics are commonly administered to prevent this reflex-induced bronchoconstriction. Therefore, in a double-blind, placebo-controlled prospective study, we tested the effectiveness of oral mexiletine and intravenous lidocaine at blocking histamine-induced reflex bronchoconstriction. Fifteen subjects with mild asthma were selected (for whom the provocative concentration of histamine aerosol causing a 20% decrease in FEV1 (PC20) was less than 18 mg/ml). Subsequently, the subjects were pretreated with oral mexiletine, intravenous lidocaine, or placebo, and the histamine challenges were repeated. The baseline PC20 for histamine was 8.8 +/- 1.8 mg/ml. Mexiletine and lidocaine at therapeutic serum concentrations blocked reflex bronchoconstriction. Oral mexiletine increased the PC20 to 21.1 +/- 5.0 mg/ml (serum concentration: 0.7 +/- 0.05 microg/ml). Likewise, intravenous lidocaine increased the PC20 to 24.5 +/- 4.9 mg/ml (serum concentration: 2.6 +/- 0.15 microg/ml). Oral mexiletine and intravenous lidocaine block reflex-induced bronchoconstriction. Furthermore, mexiletine may have additional airway benefits when selected for the treatment of dysrhythmias or chronic pain in patients with coexisting lung diseases.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1073-449X
pubmed:author
pubmed:issnType
Print
pubmed:volume
154
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
885-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Intravenous lidocaine and oral mexiletine block reflex bronchoconstriction in asthmatic subjects.
pubmed:affiliation
Department of Anesthesiology and Environmental Health Services, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, U.S. Gov't, P.H.S., Randomized Controlled Trial