Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review.

Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review. Research Abstract Details 

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Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review. Abstract Text:

Jeanette M Tetrault,Kristina Crothers,Brent A Moore,Reena Mehra,John Concato,David A Fiellin,

BACKGROUND: The relationship between marijuana smoking and pulmonary function or respiratory complications is poorly understood; therefore, we conducted a systematic review of the impact of marijuana smoking on pulmonary function and respiratory complications. METHODS: Studies that evaluated the effect of marijuana smoking on pulmonary function and respiratory complications were selected from the MEDLINE, PsychINFO, and EMBASE databases according to predefined criteria from January 1, 1966, to October 28, 2005. Two independent reviewers extracted data and evaluated study quality based on established criteria. Study results were critically appraised for clinical applicability and research methods. RESULTS: Thirty-four publications met selection criteria. Reports were classified as challenge studies if they examined the association between short-term marijuana use and airway response; other reports were classified as studies of long-term marijuana smoking and pulmonary function or respiratory complications. Eleven of 12 challenge studies found an association between short-term marijuana administration and bronchodilation (eg, increases of 0.15-0.25 L in forced expiratory volume in 1 second). No consistent association was found between long-term marijuana smoking and airflow obstruction measures. All 14 studies that assessed long-term marijuana smoking and respiratory complications noted an association with increased respiratory symptoms, including cough, phlegm, and wheeze (eg, odds ratio, 2.00; 95% confidence interval, 1.32-3.01, for the association between marijuana smoking and cough). Studies were variable in their overall quality (eg, controlling for confounders, including tobacco smoking). CONCLUSIONS: Short-term exposure to marijuana is associated with bronchodilation. Physiologic data were inconclusive regarding an association between long-term marijuana smoking and airflow obstruction measures. Long-term marijuana smoking is associated with increased respiratory symptoms suggestive of obstructive lung disease.

Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review. Publishing Authors By Initials

JM Tetrault,K Crothers,BA Moore,R Mehra,J Concato,DA Fiellin,

For similar respiratory tract diseases research abstracts see: respiratory tract diseases research

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Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review. Journal Published:

PUBLICATION TYPE: Review

Journal: Archives of internal medicine

VOLUME: 167

Page Numbers: 221-8

Journal Abbreviation: Arch. Intern. Med.

ISSN: 0003-9926

DAY: 12

MONTH: Feb

YEAR: 2007

Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review. Information

Number of References: 42

LANGUAGE: eng

NlmUniqueID: 372440

Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review. Keywords Mesh Terms:

KEYWORDS: Respiratory Tract Diseases

MESH TERMS: etiology

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Grant and Affiliation Information for Effects of marijuana smoking on pulmonary function and respiratory complications: a systematic review.

AFFILIATION: Clinical Epidemiology Research Center, Department of Veterans Affairs Connecticut Healthcare System, West Haven Veterans Affairs Medical Center, 950 Campbell Avenue, West Haven, CT 06516, USA. jeanette.tetrault@yale.edu

Country: United States

AGENCY: United States NIDA

GRANT: R21 DA 019246-02

ACRONYM: DA

MEDLINETA: Arch Intern Med

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