Relationship between Catamenial Pneumothorax or Non-catamenial Pneumothorax and Endometriosis

Togas Tulandi, Tulandi T, Sirois C, Christian Sirois, Sabban H, Hussein Sabban, Cohen A, Aviad Cohen, Ally Murji, Murji A, Singh SS, Sukhbir S. Singh, Innie Chen, Liane Belland, Belland L
Journal of Minimally Invasive Gynecology · 2017 · vol. 25(3) , pp. 480–483 · doi:10.1016/j.jmig.2017.10.012 · PMID:29038042 · W2763343063
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This study found thoracic endometriosis in over half of women with catamenial pneumothorax, contrasting with its absence in non-catamenial cases, and noted a predominance of right apical pneumothorax in the catamenial group.

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Abstract

Study objectiveTo evaluate the clinical characteristics of women presenting with catamenial pneumothorax and compare them with those with noncatamenial pneumothorax.DesignA case-control study (Canadian Task Force II-2).SettingA multicenter study.PatientsForty-two women with pneumothorax: 21 women had catamenial pneumothorax (study group), and 21 were age-matched women with noncatamenial pneumothorax (control group).InterventionsAll patients underwent video-assisted thoracoscopy and pleural biopsy. We also evaluated the presence and stage of pelvic endometriosis in 16 women with catamenial pneumothorax who had undergone laparoscopic surgery.Measurements and main resultsThe number of known episodes of catamenial pneumothorax before treatment was between 2 and 8 episodes. Symptoms were mainly chest pain and shortness of breath; 1 patient had hemoptysis. The prevalence of right-sided pneumothorax was 95.2% in the study group and 57.1% in the control group (p = .004). Besides 2 cases with complete collapse of the right lung, most of the cases in the study group had apical pneumothorax. Pelvic endometriosis was found in 15 of 16 women (93.7%), mainly stage 3 or 4, and thoracic endometriosis in 12 of 20 women (60%). None of the patients in the control group had thoracic endometriosis.ConclusionThoracic endometriosis is found in over half of women with catamenial pneumothorax but absent in those with noncatamenial pneumothorax. Right apical pneumothorax is predominant in women with catamenial pneumothorax. Endometriosis plays an important role in the mechanism of catamenial pneumothorax.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Pneumothorax Adult Canada Case-Control Studies Endometriosis Endometriosis Female Humans Laparoscopy Laparoscopy Middle Aged Pelvis Pneumothorax Pneumothorax Retrospective Studies Thoracic Surgery, Video-Assisted Thoracic Surgery, Video-Assisted Thorax

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