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  • Title: Pulmonary vein thrombosis after lobectomy with vein stump closure by ligation.
    Author: Miyoshi R, Nishikawa S, Tamari S, Noguchi M, Hijiya K, Chihara K.
    Journal: Asian Cardiovasc Thorac Ann; 2018 Sep; 26(7):546-551. PubMed ID: 30217129.
    Abstract:
    Objectives Thrombosis in the pulmonary vein stump after a left upper lobectomy is a rare but potentially life-threatening complication, and the pulmonary vein stump length plays an important role here. We assessed the frequency and risk factors for thrombosis in patients undergoing lobectomy with division of the superior pulmonary vein using ligation. Methods We retrospectively reviewed 425 patients with primary lung cancer who underwent lobectomy or bilobectomy in our institution from 2008 to 2016, with contrast-enhanced chest computed tomography within a year after lobectomy. The superior pulmonary vein was divided by thread ligation, while the inferior pulmonary vein was divided using a linear stapler. The pulmonary vein stump length was measured using contrast-enhanced chest computed tomography. Results Four (0.9%) of the 425 patients experienced thrombosis in the pulmonary vein stump within 6 months after lobectomy. All 4 patients had undergone a left upper lobectomy, and 4.1% of this subset developed thrombus. One patient with a thrombus in the pulmonary vein stump experienced renal and cerebral infarction after a left upper lobectomy. The left superior pulmonary vein stump was significantly longer than the other pulmonary vein stumps. Conclusions Thrombosis in the pulmonary vein stump occurred in 4.1% of patients undergoing a left upper lobectomy with pulmonary vein stump closure by thread ligation, which is a relatively low frequency. Superior pulmonary vein stump closure using thread ligation might help prevent pulmonary vein stump thrombus after a left upper lobectomy.
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