[Effects of pulmonary veins ligation style for the patients' stress and cardiac on lung cancer.].

Background: It is needed to explore the effects of operation on stress statue, myocardial damage and arrhythmia to lung cancer. This study would compare the effects of two ligation styles of pulmonary vein on lung cancer patients' stress and cardiac postoperative.

Methods: 54 cases were divided into two groups randomly: the pulmonary vein trunk-ligation group (trunk group, 27 cases) and the pulmonary vein branch-ligation group (branch group, 27 cases). The blood concentrations of hydrocortisone (HC), blood glucose (BG) and cardial troponin-I (cTnI) were determined at different time point. The surgical data, the quantum of pain and ECG also recorded.

Results: (1) There were no significance difference of the operation time, blood loss during operation and drainage volume in first day after operation between two groups. (2) There're no differences of the quantum of pain between two groups. (3) The HC of the two groups' ascend obviously on the end of operation and descend during postoperative. (4) The BG of the two groups' rise on the 1st day obviously, maintain high level on the 2nd day, descend on the 3rd day but still higher than that of preoperation. (5) The BG and HC show a direct positive correlation postoperative. (6) The cTnIs of the trunk group ascend immediately after operation, but there's no statistically significance between two groups. (7) The arrhythmia incidence is higher in the trunk group, but the arrhythmia incidences classified by the date after operation of the two groups' show no distinction.

Conclusions: (1) The effects of two pulmonary vein ligation styles on postoperative stress show no significance differences. (2) The style of pulmonary vein trunk-ligation has a more obvious tendency to do harm to heart than that of branch-ligation. (3) The style of pulmonary vein branch-ligation may reduce the arrhythmia incidence after operation.