Open AccessPreoperative Assessment of Pulmonary Function Tests and Outcomes After Cardiac Surgery
Author(s) -
Masahiro Fujii,
Dai Nishina,
Ryuzo Bessho
Publication year - 2020
Publication title -
the heart surgery forum/the heart surgery forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.255
H-Index - 38
eISSN - 1522-6662
pISSN - 1098-3511
DOI - 10.1532/hsf.2791
Subject(s) - medicine , mechanical ventilation , pulmonary function testing , cardiac surgery , vital capacity , retrospective cohort study , ventilation (architecture) , surgery , anesthesia , cardiology , lung , lung function , mechanical engineering , diffusing capacity , engineering
Background: To investigate the association between preoperative pulmonary function evaluations and surgical outcomes of patients with chronic lung disease following cardiac surgery.
Methods: This retrospective observational study evaluated 148 patients using preoperative pulmonary function tests before undergoing cardiac surgery. Patients were divided into 4 groups (normal, obstructive, restrictive, and combined disorder), based on the result of the pulmonary function tests. Additionally, we evaluated the percent predicted forced expiratory volume in 1 second. Finally, we investigated the mechanical ventilation duration, length of postoperative hospital stay, and the 30-day mortality rate between the groups in each study.
Results: The mechanical ventilation duration and length of postoperative hospital stay in the combined group was significantly longer than that in the other groups (P < .0001, P < .0001, respectively). Patients in the restrictive group had a significantly longer postoperative ventilation or hospitalization than those in the normal group (P = .0479, P = .0164, respectively). However, there were no significant differences in the 30-day mortality rates between the groups. There also was a significant negative correlation between the percent predicted forced expiratory volume in 1 second and mechanical ventilation (R2 = 0.052, P = .0054) and postoperative hospitalization (R2 = 0.042, P = .0122).
Conclusion: Risk stratification by preoperative pulmonary function tests may be used to accurately identify the postoperative outcomes in chronic lung disease patients following cardiac surgery.