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Related Experiment Video

Updated: Nov 2, 2025

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

Cannabis Use Is Associated With Recurrence After Primary Spontaneous Pneumothorax.

Connor J Wakefield¹, Christopher W Seder¹, Andrew T Arndt¹

¹Department of Cardiovascular and Thoracic Surgery, Rush University Medical Center, Chicago, IL, United States.

Frontiers in Surgery

|June 11, 2021

Summary

Cannabis use is common in primary spontaneous pneumothorax (PSP) patients and is linked to a higher recurrence rate. This finding suggests a need for further investigation into cannabis

Keywords:

chest tube thoracostomy marijuana pneumothorax recurrence spontaneous pneumothorax video-assisted thoracic surgery

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Published on: February 12, 2017

Area of Science:

Pulmonology
Thoracic Surgery
Addiction Medicine

Background:

Primary spontaneous pneumothorax (PSP) is a common condition with a significant recurrence rate.
Understanding risk factors for PSP recurrence is crucial for patient management.

Purpose of the Study:

To investigate the association between cannabis use at the time of initial PSP and disease recurrence.
To determine if cannabis consumption influences the likelihood of PSP recurrence.

Main Methods:

Retrospective study of 67 patients with PSP between 2010-2018.
Comparison of cannabis users versus non-users using Fisher's exact test, Wilcoxon rank-sum test, and logistic regression.
Adjustment for tobacco use, BMI, and height in recurrence analysis.

Main Results:

42% of PSP patients reported cannabis use.
Cannabis users had higher rates of tobacco use and lower BMI.
Cannabis use was significantly associated with PSP recurrence (OR 1.85, p=0.014) after adjusting for covariates.

Conclusions:

A high prevalence of cannabis use exists among patients presenting with PSP.
Cannabis usage is an independent risk factor associated with PSP recurrence.
Cannabis use may predict the eventual need for operative intervention in PSP patients.