Comparison of displacement of polyvinyl chloride and silicone left-sided double-lumen tubes during lateral positioning / 대한마취과학회지

BACKGROUND: Compared to an equivalent sized polyvinyl chloride (PVC) double-lumen tube (DLT), a silicone DLT has a shorter endobronchial segment. The aim of this study was to compare the incidence of clinically significant displacement of left-sided PVC and silicone DLTs after a positional change to a lateral position from a supine position and determine its effect on the need for DLT repositioning for successful lung separation in patients undergoing thoracic surgery. METHODS: One hundred eight adult patients requiring one-lung ventilation were randomly divided into group P (PVC DLT, n = 54) and group S (Silicone DLT, n = 54). The position of the DLT was observed before and after lateral positioning to assess the effect of the position change. The incidence of clinically significant displacement (>10 mm) of DLT was compared between the groups. RESULTS: DLTs were clinically significantly displaced in group P (17/48, 35.4%) and group S (18/52, 34.6%) after lateral positioning (p = 0.933). A proximal displacement (31.3% [group P] and 25.0% [group S]) was more common than distal displacement (4.2% [group P] and 9.6% [group S]), with no significant intergroup difference (p = 0.494). After lateral positioning, critical malposition of DLT with bronchial herniation to the right main bronchus was 8.3% (group P) and 7.9% (group S, p = 0.906). CONCLUSION: Left-sided PVC and silicone DLTs produced comparable incidences of clinically significant displacement and, consequently, required similar rates of repositioning for successful lung separation after lateral positioning.

Late Recurrence of Ovarian Cancer Mimicking a Primary Lung Malignancy after Curative Resection

The majority of patients with an advanced-stage ovarian cancer relapse within approximately 18 months after completion of the first-line therapy. Recurrent ovarian cancer commonly presents as peritoneal seeding, while other distant sites are anywhere including the pleura, liver, lung, central nervous system, spleen, skin, bone, and breast. As pulmonary metastases usually occur through hematogenous or lymphangitic routes, the pattern of the metastases of ovarian cancer is multiple and scattered diffusely. The solitary pulmonary metastasis of ovarian cancer is an extremely rare condition, thus it can be misdiagnosed as a primary lung cancer, unless physician has a clinical suspicion. Herein, we introduce a case of solitary pulmonary metastasis of ovarian cancer which occurred 9 years after the curative surgery and chemotherapy.

A comparison of different surgical approaches for the treatment of thoracic middle/lower segment esophageal cancer / 中华胸心血管外科杂志

Objective Surgical approech differs between China and western countries in the treatment of middle/lower aegment thoracic esophageal cancer. This study was designed to compare the effects of different surgical modalities on traumatic reaction, heal-ing process and lymph node dissection.Methods Fifty-nine petients,diagnosed with middle/lower segment of thoracic esophageal cancer, were enlisted and had undergone curative RO esophagectomy.The patients were categorized based on different approaches as the following three groups:group of Ivor-Lewis operation,group of McKeown operation and group of esophagectomy through left tran-sthoracic approach.Clinical data was summarized and malyzed.Results (1)No surgical death was reported in this study.(2)There were no statistical difference among the three groups in tenms of postoperative hospital stay,diration of systemic inflammatory re-sponse syndrome and total body fluid loes (P=0.287,0.641,0.355).(3) The number of total lymph nodes harvested from the above three groups was 22.5(11-39),26(14-56).and 17(7-44)(P=0.005),respectively.The number of abdominal lymph nodes harvested from the above three groups was 10(5-26),12(4-32),and 8(3-19)(P=0.021),respectively.No statistical difference was found to the number of thoracic lymph nodes among three groups.(4)Lymph node metastasis occurred most frequently in the station of pericardial lymph nodes,followed by middle thoracic paraesophageal nodes along the left gastric ar-tery.The range of metastasized lymph nodes dissected through left transthoracic approach was much limited compated with right tran-sthoracic approach.Conchuslon The was no difference between left and right transthoracic approach in terms of surgical trauma and overall rehabilitation.The number of lymph nodes harvested from right transthoracic approach surpassed that from the left approach, which might be due to the extent of abdoominal lymphadenectomy.Considering wide range of lymph node metastasis,We recommedn a more extended lymph node dissection for middle/lower segment of thoracic esophageal cancer for the purpose of better local control control and survival benefit.

Update of researches on acute lung injury in thoracic surgical procedures / 医学研究生学报

With the development of the thoracic surgery, clinicians are paying more and more attention to acute lung injury (ALI) following thoracic surgical procedures. Many factors may cause ALI during the operation. This review updates recent researches on the pathogenesis and treatment strategies of the ALI in thoracic surgical procedures.

Management of the recalcitrant bronchopleural fistula using the transsternal transpericardial approach / 中华胸心血管外科杂志

Objective To review the experience of closure of recalcitrant bronchopleural fistula using the transsternal transpericardial approach. Methods 3 patients with recalcitrant bronchopleural fistula underwent transsternal transpericardial closure of a bronchopleural fistula and drainage by open thoracostomy. Results All patients were survived and there was no recurrence of bronchopleural fistula. Conclusion Transsternal transpericardial approach seems to be a safe and effective method in cases of bronchopleural fistula complicated with empyema. It has the added advantage of less recurrent fistula formation.