Catamenial pneumothorax: Not only VATS diagnosis

Rosatea Quercia, Angela De Palma, Francesco De Blasi, Graziana Carleo, Giulia De Iaco, Teodora Panza, Giuseppe Garofalo, Valentina Simone, Michele Costantino, M Costantino, Giuseppe Marulli
Frontiers in surgery · 2023 · vol. 10 , pp. 1156465 · doi:10.3389/fsurg.2023.1156465 · PMID:37082366 · PMC10110870 · W4362600589
article OA: gold CC0 ⤵ 11 in-corpus citations
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⚙ AI-generated summary by claude@2026-06, 2026-06-09 ⓘ

Video-assisted thoracic surgery (VATS) diagnosed diaphragmatic fenestrations and ectopic endometrial implants and enabled surgical treatment for catamenial pneumothorax, preventing recurrence in most patients when combined with medical therapy.

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Abstract

BACKGROUND: Catamenial pneumothorax (CP) is a rare type of spontaneous, recurring pneumothorax occurring in women, from the day before menstruation until 72 hours after its beginning. Conservative treatment is generally associated with recurrence of CP. Video-assisted thoracic surgery (VATS) approach allows not only to obtain diagnosis but also to guide definitive treatment of causing lesions, such as ectopic endometrial implants or diaphragmatic defects and fenestrations. We report our experience in VATS management of CP to focus on its role in CP. MATERIALS AND METHODS: In this retrospective observational study, we collected data from women referred to our center for CP, from January 2019 to April 2022. All patients underwent VATS approach, with muscle-sparing thoracotomy when diaphragmatic fenestrations were detected, to perform selective diaphragmatic plication and/or partial diaphragmatic resection. Results were analyzed in terms of pneumothorax recurrence after surgical treatment. All patients were referred to gynecologists for medical therapy. RESULTS: Eight women (median age 36 years, range: 21-45), all with right side CP, were included; three already had pelvic endometriosis and two had already undergone lung apicectomy at other institutions. VATS allowed us to detect diaphragmatic fenestrations in seven patients (87.5%) and apical bullae in five (62.5%). Apicectomy was performed in five cases (62.5%), selective diaphragmatic plication in two (25%), and partial diaphragmatic resection in five (62.5%). Chemical pleurodesis with talc was performed in all to minimize the risk of recurrence. Pathological diagnosis of endometriosis on the resected diaphragm was achieved in five patients (62.5%). No recurrence occurred, except for one woman who stopped medical treatment for endometriosis. CONCLUSIONS: In the management of patients with CP, VATS should be recommended not only to obtain an explorative diagnosis of ectopic endometrial implants or diaphragmatic fenestrations but also to allow the most appropriate surgical treatment and obtain pathological specimens for confirmation and definitive diagnosis of thoracic endometriosis. Medical therapy to achieve ovarian rest is mandatory in the postoperative period and should not be discontinued.

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endometriosisthoracic_endometriosis

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