1.

Record Nr.

UNINA9910697484103321

Titolo

Gas chromatographic/mass spectrometric differentiation of atenolol, metoprolol, propranolol, and an interfering metabolite product of metoprolol [[electronic resource] ] : final report / / Mike K. Angier ... [and others]

Pubbl/distr/stampa

Washington, DC : , : Office of Aerospace Medicine, U.S. Dept. of Transportation, Federal Aviation Administration

Springfield, Va. : , : National Technical Information Service [distributor], , [2004]

Descrizione fisica

i, 6 pages : digital, PDF file

Altri autori (Persone)

AngierMike K

Soggetti

Air pilots - Mortality - United States

Aircraft accidents - Mortality - United States

Air pilots - Drug use - United States

Forensic toxicology - United States

Adrenergic beta blockers - Analysis

Adrenergic beta-Antagonists - isolation & purification

Atenolol - isolation & purification

Gas Chromatography-Mass Spectrometry

Metoprolol - isolation & purification

Propranolol - isolation & purification

Sensitivity and Specificity

Technical Report

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Title from title screen (viewed on Nov. 20, 2008).

"October 2004."

"DOT/FAA/AM-04/15."

Nota di bibliografia

Includes bibliographical references.

Sommario/riassunto

Pilots who are considered hypertensive are closely monitored by the Federal Aviation Administration (FAA) to ensure that their hypertension is properly controlled. During the investigation of fatal civil aviation



accidents, postmortem samples obtained from pilots are submitted to the FAA's Civil Aerospace Medical Institute (CAMI) for toxicological evaluation. During such evaluation, submitted samples are analyzed for prescription and nonprescription drugs, and it is common to find beta-blocker antihypertensives such as atenolol, metoprolol, and propranolol in the submitted biological samples. During a 10-year period of 1993-2002, postmortem samples from 3290 civil aviation accident pilot fatalities (cases) were received by CAMI. Toxicological evaluation of these cases revealed that 50 of the 3290 fatalities had the commonly prescribed beta-blockers, atenolol, metoprolol, and propranolol. Out of the 50 fatalities, atenolol, metoprolol, and propranolol were found to be present in 24, 19, and 7 fatalities, respectively, but the initial analysis indicated the presence of atenolol and metoprolol in 4 of these pilot fatalities. Since (i) the combined use of both drugs was not consistent with the history of the drug use by those pilots, (ii) it is uncommon to simultaneously prescribe 2 beta-blockers, and (iii) these commonly used antihypertensives have considerable amount of chemical and structural similarity (6), further examination was undertaken for those fatality cases wherein atenolol and metoprolol were initially detected. Such examination entailed selectively and simultaneously analyzing the 3 commonly used beta-blockers in the submitted biological samples and rectifying any possible analytical interference with the antihypertensives.