Project description:Thoracoscopic right medial-basal (S7) segmentectomy is technically challenging due to its small size, depth, and anatomical complexity, especially through a uniportal thoracoscopic approach because of the limited angulation of the surgical instruments or staplers used. Herein, we report a successful case of right S7 segmentectomy through a uniportal approach with sufficient surgical margin. Key aspects are to mobilize the lung by dissecting the pulmonary ligament, dividing a fissure, and exposing the pulmonary vein branches to the periphery, which allowed us to perform smooth and safe stapling through the single skin incision.
Project description:Posterior basal (S10) segmentectomy is one of the most challenging (and uncommon) types of pulmonary segmentectomy. Here, we present two key tips for facilitating a uniportal operation. The first is a full understanding of the relative locations of the pulmonary vessels and bronchi (as revealed by preoperative three-dimensional computed tomography/broncho-angiography), and the other is the use of "suction-guided stapling" to dissect and divide the peripheral pulmonary vessels and bronchi. We describe the successful postoperative course of a patient who was so treated.
Project description:PurposeTo investigate the accuracy of a segment-counting method in predicting lung function and volume after stapler-based thoracoscopic segmentectomy in comparison with lobectomy.MethodsBetween 2014 and 2018, patients who underwent these procedures were retrospectively reviewed. Thoracic computed tomography and spirometry data before and 1 year after the surgery were assessed. We evaluated the differences between the predicted values using a segment-counting method and the actual postoperative values for lung function and volume in each group. Sub-analyses were also performed to assess the impact of the number of staples and resected segments in predicting patient outcomes.ResultsWe included 116 patients (segmentectomy, 69; lobectomy, 47). Actual postoperative lung function and volume values matched the predicted values in the stapler-based segmentectomy group, and significantly exceeded the predictions in the lobectomy group (P <0.01). Sub-analyses revealed lower postoperative lung function values than predicted existed after single segmentectomy, with an odds ratio of 3.29 (95% confidence interval: 1.02-10.70, P = 0.04) in a multivariable analysis. The degree of predicted error regarding lung function was negligible.ConclusionsThe segment-counting method was useful in predicting lung function after stapler-based thoracoscopic segmentectomy. Segmentectomy rarely yielded lower-than-predicted lung function and volume values.
Project description:A 63-year-old woman was referred to our hospital due to an abnormal shadow in the right middle lung field on chest X-ray. Chest computed tomography revealed a 2.0 cm nodule in the right lateral segment of the middle lobe. The nodule was confirmed to be lung adenocarcinoma by transbronchial lung biopsy. Because the tumor was located near the incomplete interlobar fissures, resection might traditionally be performed by right upper and middle lobectomy. However, we chose a minimally invasive intervention and performed anterior, lateral, and medial segmentectomy under video-assisted thoracic surgery. This technique resulted in complete tumor resection with minimal adverse effects.
Project description:ObjectivesThe trans-fissure ground-glass opacity (GGO) is a special category of lesions, with a diameter always exceeding 2 cm. It is located on a fused fissure, 'seizing' 2 neighbouring lobes simultaneously. The segmentectomy for the trans-fissure GGO is never reported.MethodsBetween August 2016 and December 2022, patients operated with a trans-fissure GGO were included. The patients' backgrounds and surgical data were summarized. All procedures were performed with the help of preoperative three-dimensional computed tomography bronchography and angiography.ResultsA total of 84 patients were included. The selection criteria included a consolidation tumour ratio <50% and a lesion size >2 and ≤3 cm. Thirty-six patients were operated with lobectomy + wedge (the traditional method group) and 48 patients were operated with anatomical segmentectomy + function-preserving sublobectomy (the new method group). The median operative time was 87 min in the traditional group and 98 min in the new method group, and the median blood loss was 60 ml in the traditional group and 70 ml in the new method group. The median duration of hospital stays was 4 days in the traditional group and 2 days in the new method group. In the traditional method group, there was 1 case of postoperative air leakage and 5 cases of haemoptysis. In the new method group, 2 cases of postoperative air leakage were identified. The median size of the tumour in the resected segment was 2.6 cm in the traditional group and 2.5 cm in the new method group. The median margin was 2.5 cm in the traditional group and 3.3 cm in the new method group.ConclusionsThe trans-fissure GGO could be safely resected en bloc by segmentectomy with a well-designed surgical procedure and appropriate preoperative planning.