Affiliation:
1. Department of Thoracic Surgery Ina Central Hospital Nagano Japan
2. Division of General Thoracic Surgery, Department of Surgery Shinshu University School of Medicine Nagano Japan
Abstract
AbstractObjectivesThe influence of lung resection on cardiac function has been reported, and previous studies have mainly focused on right ventricular (RV) dysfunction. As few studies have analyzed changes in left ventricular hemodynamic variables caused by lung resection, we aimed to investigate the perioperative changes in left ventricular stroke volume (LVSV) caused by anatomical lung resection.MethodsWe enrolled 61 patients who underwent anatomical lung resection and perioperative LVSV monitoring. The Flo Trac system was used for dynamic monitoring. We investigated changes in LVSV after lung resection and the factors that affected these changes. The operative procedures that contributed to these changes were also investigated.ResultsLVSV decreased after anatomical lung resection in the majority of patients (n = 38, 62.2%). Operative procedures affecting this change were (a) taping the superior pulmonary vein (SPV; right: V1‐3) before dorsal part procedure (e.g., major fissure division of right upper lobectomy, A1 + 2c, and A4 + 5 division of left upper lobectomy); (b) division of the SPV (right: V1‐3, V4 + 5); (c) division of A6‐10 (in lower lobectomy); and (d) finish division of all vessels.ConclusionsLVSV decrease was caused by anatomical lung resection in the majority of patients owing to the intraoperative procedures described above.