Rui Haddad1*, Caterin Arévalo2 and David Nigri3
1Thoracic Surgeon, Department of Thoracic Surgery, Hospital Samaritano, Rio de Janeiro, Brazil
2Resident of General Surgery, Universidad del Sinú, Cartagena de Indias, Colombia
3Pneumologist, Department of Pulmonology and Bronchoscopy, Hospital Samaritano, Rio de Janeiro, Brazil
*Address for Correspondence: Rui Haddad MD, Department of Thoracic Surgery Rua Barão de Lucena 48-Room 3 Botafogo CEP: 22260-020 Rio-RJ-Brazil, Email: email@example.com
Dates: Submitted: 14 December 2017; Approved: 19 Desember 2017; Published: 20 December 2017
How to cite this article: Haddad R, Arévalo C, Nigri D. Catamenial pneumothorax: Presentation of an uncommon Pathology. Arch Case Rep. 2017; 1: 009-013.
Copyright: © 2017 Haddad R, et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: Catamenial pneumothorax; Endometriosis; Thoracic endometriosis syndrome; Pneumothorax
The first description of the recurrent catamenial pneumothorax is performed by Maurer et al. , some cases have been described in the world literature, which has allowed to improve their diagnosis, however, there is still no consensus on the best standard therapeutic attitude of the disease . Endometriosis has been characterized as one of the most important and predisposing factors in the development of this pathology. We describe the history of a woman with recurrent pneumothorax caused by pelvic endometriosis with thoracic implants and discuss the different mechanisms and current therapies for the management of the main complications of this pathology.
A 38-year-old, non-smoker, female, presented with clinical pictures of chest pain and dyspnea of 30 days of evolution, with a history of multiple episodes of right pneumothorax. Carrier of pelvic endometriosis in hormonal therapy and antecedent of bladder and left ureteral obstruction, improved with double J catheter placement. It was evaluated by our thoracic surgery department, who initially gave us expectant management of pneumothorax. Given pre- and postoperative recurrent respiratory symptoms, she was submitted to drainage and prosthesis placement by assisted video-assisted thoracoscopy, evidencing extensive pleural endometriosis with multiple diaphragmatic pores (Figure 1), in tendon centers, pleural micronodules, and scars at the apex. Due to the findings, apicoectomy of the right upper lobe, diaphragmatic plasty with polyethynylglycol mesh placement covering the diaphragm defects (Figure 2), pleural biopsy, pleural drainage with a pig-tail catheter, and pleurodesis with 2% iodopovidone were performed. The pathology report confirmed endometriosis throughout the specimen withdrawn. She tolerated the procedure well and continued with hormonal therapy. However, during the postoperative period it presents persistent air leakage through the drain. Due to the persistence of fistula, she is hospitalized for new examinations and conduct determination. Patient without respiratory symptoms or pain, normal pulmonary auscultation, with studies of normal radiological images and self-limitation of the fistula. She is discharged with a CT scan at 1 month, which is normal and without recurrence of symptoms.
Due to the persistence of pelvic symptoms, 5 months after thoracoscopic surgery, the patient underwent an ultra-low anterior rectal resection with mechanical anastomosis through a highly complex robotic surgery (Figure 3), after placement of a chest tube, which was removed on the third day without problems in the postoperative period. Therefore, it is demonstrated the importance of the interdisciplinary management of the patient by the whole group of general surgeons, thoracic, urologists, proctologists and gynecologists.
The appearance of endometriosis in women is in the reproductive age. The incidence of catamenial pneumothorax associated with it is low, 5-15% [3-5], however, in our case the initial age of occurrence of the disease, coincided with that reported (older than 40 years) in previous studies .
Also, the rate of complicated endometriosis in this type of pneumothorax varies from 25% to 60%, requiring inspection of the pelvic cavity by laparoscopy or laparotomy, in most cases .
Endometriosis that involves the chest cavity or lungs usually presents with catamenial symptoms of pneumothorax, hemothorax or hemoptysis. Karpel et al. , reviewed 84 cases of pulmonary endometriosis, revealing the dominance of right-sided pneumothorax in a minority of patients who had concurrent pelvic endometriosis. Also, in a low percentage of pelvic or diaphragmatic cases, diaphragmatic fenestrations isolated or associated with the endometrial focus have been observed and diagnosed .
The theory of Sampson et al. , proposed to explain the relationship between these two phenomena, is that the retrograde menstrual bleeding that appears with columnar cells wrapped by a stromal with decidual reaction, causes ectopic implants of endometriosis, compatible with the appearance of collections of pleural fluid in the Diaphragmatic right side for physiological reasons of effusion and movement of peritoneal fluids. In addition, the most frequent extrapelvic location of endometriosis is the respiratory system .
Generally, pulmonary symptoms and cyclic occurrence are sufficient for the diagnosis of pulmonary endometriosis, and biopsy is not usually mandatory. However, intrathoracic lesions have been described during surgery, in which the diaphragm has been identified and classified according to criteria of the American Society of Reproductive Medicine (Figure 4), which is important because its knowledge, together with the correlation of the histopathological findings, allow a more accurate diagnosis of the types of disease . In addition, patients with abdominal endometriosis and thoracic implants show predominantly posterior classic sentinel lesions, which cannot be easily seen by the umbilical port of laparoscopic surgery, thus reinforcing the recommendation for meticulous examination of the diaphragm at that level given the high Risk of secondary pneumothorax and recurrence . However, Muller and Nelems  performed a review, in which they determined that recurrent catamenial pneumothorax can occur without thoracic endometriosis, due to the passage of air from the genital tract to the peritoneum and thence to the chest, also involving some cases of congenital diaphragmatic defects. Regarding treatment, multiple therapies have been described to allow definitive control of the disease. These should be performed individually by assessing the patient’s age, desire for fertility, recurrence, and quality of life with symptoms . Therefore, if the patient wishes to preserve her fertility, hormone suppression therapy has been consolidated as the best option, in which the analogues of gonadotropin hormone through the rupture of ovarian steroidogenesis, induce the resolution of endometriosis (Pulmonary or pelvic)  and decreased recurrence. Therefore, we emphasize that the importance of multidisciplinary management among the gynecologist, urologist, proctologist and general and thoracic surgeon has also demonstrated the depreciation in the recurrence rates of Disease, showing better postoperative results . In summary, according to the literature found and our experience, the ideal management of thoracic endometriosis is apicectomy, placement of prosthetic material in the affected areas within the thorax and hormone therapy [12,14-17].
Although catamenial pneumothorax has been studied as an infrequent disease with multiple recurrences, each patient should be analyzed integrally and individually to correctly determine the aetiology of the pathology, using tools such as new classifications correlated to histological studies, which not only improve the Diagnosis, but, correct with the treatment of women with endometriosis. Currently, worldwide literature shows how the treatment of the combination of continuous hormonal therapy and a thorough review of the pleural, pulmonary and diaphragmatic alterations of endometriosis, provides a decrease in recurrence and improves prognosis of the disease.
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