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• W3049278326 abstract "Central MessageThoracoscopy is a safe, effective, and superior alternative to open surgical approach for complex mediastinal masses. Extensive preoperative evaluation and a precise surgical plan is always mandatory.See Commentaries on pages 386 and 387. Thoracoscopy is a safe, effective, and superior alternative to open surgical approach for complex mediastinal masses. Extensive preoperative evaluation and a precise surgical plan is always mandatory. See Commentaries on pages 386 and 387. Tracheobronchomalacia is the most common congenital anomaly of the upper airways in children.1Wallis C. Alexopoulou E. Antón-Pacheco J.L. Bhatt J.M. Bush A. Chang A.B. et al.ERS statement on tracheomalacia and bronchomalacia in children.Eur Respir J. 2019; 54: 1-19Google Scholar It is defined as a dynamic expiratory collapse of the posterior tracheal wall, which can be partial or total. Tracheomalacia is most often of congenital origin, explained by weakness of the cartilage ring or caused by extrinsic compression.1Wallis C. Alexopoulou E. Antón-Pacheco J.L. Bhatt J.M. Bush A. Chang A.B. et al.ERS statement on tracheomalacia and bronchomalacia in children.Eur Respir J. 2019; 54: 1-19Google Scholar We present a child with a delayed diagnosis of tracheobronchial compression by a mediastinal mass, which in terms of diagnosis and surgical strategy has been challenging and educational. A 5-year-old girl had a 2-year history of recurrent respiratory tract infections and reactive airway disease when she was referred with suspicion of foreign body aspiration. Clinical examination revealed no dyspnea but significant wheezing and a barking cough highly suggestive of tracheomalacia (Video 1). Flexible bronchoscopy showed a malacia of the distal part of the trachea with severe extension to the left bronchus, secondary to nonpulsating posterior compression (Video 2).Video 2Preoperative flexible tracheobronchoscopy. The video shows the compression of the distal part of the trachea and its extension to the left bronchus, which appears completely inflammatory beyond the compression. The caliber of the right bronchus remains normal. Video available at: https://www.jtcvs.org/article/S2666-2507(20)30397-7/fulltext.View Large Image Figure ViewerDownload (PPT) Thoracic computed tomography scan showed a prevertebral mediastinal mass in front of the thoracic vertebrae 3-6 measuring 4.5 × 3.5 × 2 cm (Figure 1, A-D). The upper airways were compressed and the esophagus appeared displaced to the right and only partially visualized. Magnetic resonance imaging of the chest revealed the liquid content of the mass (Figure 1, E and F). A barium-swallow confirmed that esophagus was displaced but did not show any narrowing of its lumen (Figure 2). These results suggested a congenital cystic mass: bronchogenic cyst or esophageal duplication.Figure 2Barium swallow examination for a mediastinal mass (5 year-old child). A, Barium examination shows a narrowing of the upper part of the esophagus (arrows) due to the compression by the mediastinal mass (esophageal duplication) from the left side. B, With active swallow, the esophageal lumen widens to its normal size (arrow), but it stays displaced to the right. C, Final images show the persistence of a clear compression of the esophagus from the left at the level of thoracic vertebrae 3-6 (arrows).View Large Image Figure ViewerDownload (PPT) Despite the impossibility of single-lung ventilation and the proximity of major vascular structures, a right thoracoscopic approach was decided. The azygos vein was sealed and cut and the esophagus dissected just above the cyst and looped. The cyst had inflammatory adhesions to the posterior wall of trachea and left bronchus (Video 3). To avoid tracheal or esophageal burns, blunt dissection was preferred. After cyst perforation and suction of its mucous content, it was completely detached from the posterior wall of the upper airways and esophagus. No common wall was noted. The esophageal muscular wall was closed after we checked the mucosal integrity. Histopathologic analysis confirmed esophageal duplication. The patient was discharged home on day 5 after a completely uneventful postoperative period. At 3-month follow-up, the patients' respiratory symptoms resolved (Video 1). Written consent from the patient's parent was obtained for the use of patient's data for publication and teaching purposes. All data were anonymized to respect patient's privacy. The institutional ethics committee of the Department of Pediatric Surgery in Tirana approved this study. Tracheomalacia is a common respiratory problem in children who undergo operation for esophageal atresia. However, the dynamic nature of the obstruction makes it more difficult to detect in other diseases or in isolated tracheal malformation.1Wallis C. Alexopoulou E. Antón-Pacheco J.L. Bhatt J.M. Bush A. Chang A.B. et al.ERS statement on tracheomalacia and bronchomalacia in children.Eur Respir J. 2019; 54: 1-19Google Scholar It is not uncommon for these children to be followed for several years for atypical asthma, showing a partial response to inhaled therapy. In these patients, particular attention must be paid to a “barking cough,” which occurs due to the vibration of the floppy membranous posterior wall of the upper airways and should alert the practitioner. Vascular abnormalities are the second most common cause of tracheobronchomalacia. They classically lead to a pulsating external compression of the trachea.2Ranganath S.H. Lee E.Y. Restrepo R. Eisenberg R.L. Mediastinal masses in children.AJR Am J Roentgenol. 2012; 198: W197-W216Crossref PubMed Scopus (39) Google Scholar In our case, the computed tomography scan showed the precise location of the posterior mediastinal mass but failed to differentiate between the solid and fluid-filled mass. Magnetic resonance imaging provided reliable information of a fluid-filled mass, most likely of congenital origin.2Ranganath S.H. Lee E.Y. Restrepo R. Eisenberg R.L. Mediastinal masses in children.AJR Am J Roentgenol. 2012; 198: W197-W216Crossref PubMed Scopus (39) Google Scholar Bronchogenic cysts and esophageal duplications both result from a defective differentiation of the primitive foregut and may lead to symptomatic airway and esophageal compression. Their morphologic appearance and location are very similar, and they may rupture, bleed, become infected, or even undergo malignant transformation.3Azzie G. Beasley S. Diagnosis and treatment of foregut duplications.Semin Pediatr Surg. 2003; 12: 46-54Crossref PubMed Google Scholar Complete surgical excision is the treatment of choice. In our case, the location of the cyst in the upper and posterior part of the mediastinum made access challenging. The working space between the spine and the heart was minimal, and the encirclement by the major vessels represented a high risk of bleeding. Although the thoracoscopic approach has proven effective in mediastinal surgery, some situations remain complex.4Michel J.L. Revillon Y. Montupet P. Sauvat F. Sarnacki S. Sayegh N. et al.Thoracoscopic treatment of mediastinal cysts in children.J Pediatr Surg. 1998; 33: 1745-1748Abstract Full Text PDF PubMed Scopus (62) Google Scholar,5Rampersad R. Singh M. Parikh D. Foregut duplications in the superior mediastinum: beware of a common wall with the trachea-bronchial tree.Pediatr Surg Int. 2019; 3: 673-677Crossref Scopus (1) Google Scholar The present case demonstrates that even in such situations, complete excision is possible and safe also by a thoracoscopic approach with equipment, which is nowadays affordable and widely available also in the majority of the developing countries. Careful dissection, knowledge of the possibility of the common wall between the mediastinal cysts and the tracheobronchial tree, and closure of the esophageal wall are only a few of the important points for successful completion of such procedures. The authors acknowledge robotic surgery to be superior to simple thoracoscopy for mediastinal masses, however, with the downside of greater costs and the lack of wide availability. Uneventful thoracoscopic surgery results with a fast recovery, minimal scarring, and the excellent outcome for the patient. eyJraWQiOiI4ZjUxYWNhY2IzYjhiNjNlNzFlYmIzYWFmYTU5NmZmYyIsImFsZyI6IlJTMjU2In0.eyJzdWIiOiIzNmVkMzY2ZTA1YTI0NWJiNzI3YWQ0ZGRmMmJjYzgxMCIsImtpZCI6IjhmNTFhY2FjYjNiOGI2M2U3MWViYjNhYWZhNTk2ZmZjIiwiZXhwIjoxNjMyOTcwODI4fQ.P7KZWvz83mf0YIupN9H0GqXlOXTj_4oqpo84sxzjbbIU4cTEmYn9ZWl7Sv4kPx0IKI9RJ_YNACIyhtsOhM04APDHt5q5sF1IuzB5FSpz05dC91pdaT9EB2AzQIYnzRWkoRXKlwRMXQGzzrfEs8EfJEYv4cj2JvY36TK3618EnC5h7oGNqZgGf0fVdwrPBL4g2grj4zzioVehxduD438LmJtUTIKiogeiRZSNOI2g5cNIR0MASVeinahAh8OJfWNQpOQZM2Js0Gkst47PjzYalhu-3kt3ukvJvEJD6Tr_pZYmK8dz5iBKKo0q0eesa-rVwCikPN8TdZSaaXCS3yvkoQ Download .mp4 (6.05 MB) Help with .mp4 files Video 1Barking cough. Preoperatively, the cough sounds like a typical vibrating noise. After the removal of the cyst, the cough returned to a normal sound. Video available at: https://www.jtcvs.org/article/S2666-2507(20)30397-7/fulltext.eyJraWQiOiI4ZjUxYWNhY2IzYjhiNjNlNzFlYmIzYWFmYTU5NmZmYyIsImFsZyI6IlJTMjU2In0.eyJzdWIiOiI5NzVmZjYwNTZiOTA1ZjIxN2VmMjYzYmZkMzc2ODkzMSIsImtpZCI6IjhmNTFhY2FjYjNiOGI2M2U3MWViYjNhYWZhNTk2ZmZjIiwiZXhwIjoxNjMyOTcwODI4fQ.OZR-2dQJ-cKQ5A2pSKtnKym1TsAsjlOT9qO2iNYYnhmCCYLxopndALrp6zcnILKFPnlYB-4porndOBFSEro-XjvJCma8ZgoFFfYgD-u9Zhvzb5C_2AGr4l2mHVlS2kBX4QXS-lERMra3G2VroWp-Fr_xtGDN3qP3qywuRw__lw6NE_VauN_ytTh1CaCKFP1LdXpIS5WyFu4sS3njgKk4sNUbpD1PB8y7kZZoFaOGnIleG--XNNMM1CpQUi_7-slrq4d4LRTyCa1iJAoeI5irbCwJoZ78gGnDL0cB3wf_sHclagUOOpw9b4gEzFmjFR6IScvfrQ1MyHlxsa0QomL4fQ Download .mp4 (11.13 MB) Help with .mp4 files Video 2Preoperative flexible tracheobronchoscopy. The video shows the compression of the distal part of the trachea and its extension to the left bronchus, which appears completely inflammatory beyond the compression. The caliber of the right bronchus remains normal. Video available at: https://www.jtcvs.org/article/S2666-2507(20)30397-7/fulltext.eyJraWQiOiI4ZjUxYWNhY2IzYjhiNjNlNzFlYmIzYWFmYTU5NmZmYyIsImFsZyI6IlJTMjU2In0.eyJzdWIiOiJkODQwZmExZWE3MWQyY2JiOWE3NDg1ZDMxNjZlNmEyNyIsImtpZCI6IjhmNTFhY2FjYjNiOGI2M2U3MWViYjNhYWZhNTk2ZmZjIiwiZXhwIjoxNjMyOTcwODI4fQ.m-Ya63k9b6R9sS5xzkNoLCBWo1jwLYz8Yx9PUz46wK6SEc6qQCPrxUPsgROcYF6ZI3_fELVa8m49OsjIi8pOcSpFzkghcqDOkVy3xkwq4qzJ6jUyK8gXa9rW3XiYW8f2v0z50NOtgHx9wpPg2S0XmZTmNTn6GyPk6gCVOwfUzFOGHARLJVMYAaf7NjQ_DUg5YTLadpJ-QqzxNDlfAC04Ky7HvLYKtnKl3XyBnIlVO8Qe0IC3w9PAkLz6lH35aXSyJxFBBwjLam8xvELlPAxCHccGlTPh5Hl9Oc2MGq_5FpiP1PuGmbfvXf82XkrzKquvs6rHik0ZpNPodCIGC1VB1g Download .mp4 (96.01 MB) Help with .mp4 files Video 3Thoracoscopic surgical procedure. Right-side approach. Four trocars of 5 mm; 5 mm; 30° camera. After the exposition of the posterior mediastinum, the steps of the surgical procedure were as follows: division of the azygos vein, mobilization of the esophagus, dissection of the tracheoesophageal space to reach the left side of the mediastinum, dissection of the cyst and mobilization from the trachea first and then the left bronchus, which was attracted from the left to the right side, excision of the cyst from the esophageal wall, and closure of the esophageal wall. Video available at: https://www.jtcvs.org/article/S2666-2507(20)30397-7/fulltext." @default.
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• W3049278326 date "2020-12-01" @default.
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• W3049278326 title "Thoracoscopic resection of esophageal duplication causing tracheobronchomalacia in a 5-year-old patient" @default.
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