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Year : 2009  |  Volume : 5  |  Issue : 4  |  Page : 103-107

Minimal access mediastinal surgery: One or two lung ventilation?

1 Department of Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
2 Department of Anaesthesiology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Ali Aminian
Department of Surgery, Imam Khomeini Hospital Complex, End of Keshavarz Boulevard, Tehran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-9941.59308

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Background : Minimal access mediastinal surgery (MAMS) is usually performed under general anaesthesia with double lumen tubes (DLT). The aim of this study is to evaluate two lung ventilation through single lumen tubes (SLT) during thoracoscopic sympathectomy for hyperhidrosis and thoracoscopic thymectomy for myasthenia gravis. Methods : In this prospective non-randomized study, MAMS was performed in 58 patients with hyperhidrosis and 42 patients with myasthenia gravis, from January 2002 to December 2008. Patients were intubated with a DLT or SLT, 50 patients in each group. In the DLT group, endobronchial tubes were placed using the traditional blind approach and one lung ventilation was confirmed clinically. In the SLT group, the hemithorax was insufflated with CO2 in conjunction with two-lung anaesthesia. All the patients were evaluated for haemodynamic stability, oxygen saturation of haemoglobin (Spo2), end-tidal Pco2 (ETPco2), times required for intubation and surgery, satisfaction of surgeon with regard to exposure and postoperative complications. Results : In the SLT group, all the patients had stable haemodynamic and ventilation parameters. In the DLT group, haemodynamic instability occurred in two, decrease in Spo2 in four and increase in ETPco2 in three patients. One patient in the DLT group developed vocal cord granuloma two months later. Time required for surgery and the surgeon's opinion with regard to exposure were similar for both groups. Conclusion : Thoracoscopic surgery when used in cases where a well-collapsed lung may not be essential, since surgery is not performed on the lung itself, does not require DLT. SLT is safe in MAMS. It provides good surgical exposure and decreases the cost, time and undesirable complications of DLT.


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