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    The Effects of Low Tidal Volume and Ventilation on the Lungs in the Postoperative Period during Cardio Pulmonary Bypass in the Heart Surgery
    (Çanakkale Onsekiz Mart Üniversitesi, 2014) Gür, Ali Kemal; Özcan, Sedat; Kurt, Tolga; Eker, Esra; Odabaşı, Dolunay; Destan, Buğra; Candan, Mehmet Akif; Ekin, Ahmet
    The occurrence of respiratory problems in patients after the open heart surgery still continues to be a problem, which disturbs the comfort of surgery in the postoperative period. In this study, we aimed to prevent the sequestration, which might occur in the lungs within the continuous ventilation of the lungs that are disconnected as a routine during the cardiopulmonary bypass (CPB) under the low tidal volume; also aimed to reduce the edema in the lung tissue during the postoperative period and present these results along with the literature. For this purpose, 40 coronary artery bypass surgery patients are examined as two groups (Group 1, Group 2), which are planned under elective conditions as consecutive.40 patients who underwent coronary artery bypass surgery were divided into two groups and examined. 20 patients (group 1; 13 males, 7 females; average age is 58±8), who were normally disconnected during CPB; and 20 other patients, who are ventilated with low tidal volume during CPB (group 2; 12 males, 8 females; average age is 60±5) are taken into the study. Attention paid to not to have differences in preoperative characteristics of the patients. Lung ventilator modes, arterial blood gas levels, extubation times, preoperative pulmonary function tests (PFT) ve the postoperative day 7th and 1st month PFT’s of both groups are compared. There are some significant differences between the patients of group 1 and group 2 as follows; the average partial oxygen (PO2) amount in arterial blood gases during the intensive care period with 40% oxygen after the surgery at the 2nd hour SMIV mode are 105±10 mmHg and 120 ± 20 mmHg respectively; SO2 values are 92±4 and 94±4 respectively; the average intubation times are 5,3 ±0,4 hours and 4,2 ±0,3 hours respectively; and oxygen saturations of service are 83% ± 5 and 90% ± 3 respectively for the 1st group and the 2nd group.When the ventilation of the lung with low tidal volume during the CPB is compared with the disconnection method applied normally; we conclude that the first method protects the lung functions better than the second one. It was seen in the light of our study; the pulmonary functions are better after the ventilation with low tidal volume, and respiratory complications are less likely to be detected.