The Effect of Different Levels of Positive End-Expiratory Pressure on the Occurrence of lung Atelectasis after Coronary Artery Bypass Grafting in West Bank: A Retrospective Study رسالة ماجستير

Abstract

Background: Respiratory complication is one of the most common post CABG, this study focused on the effect of PEEP on lung atelectasis post CABG Objectives: The primary objectives were to assess the association between PEEP levels and post-CABG atelectasis, to investigate demographic risk factors for atelectasis, and to determine the timing pattern of atelectasis development. Method: Data from 268 CABG patients were analyzed retrospectively, taking into account three different levels of PEEP, 5 cm H2O, 8 cm H2O and 10 cm H2O, demographics and postoperative outcomes through a self-developed data collection tool, it was done in a tertiary care hospital in Nablus - Westbank. Statistical analysis and appropriate statistical measures were used to address the research questions. Results: Higher PEEP levels, especially at 10 cm H2O were associated with decreased pulmonary atelectasis. Smoking emerged as an important factor influencing atelectasis, Interventions such as spirometry and early thoracic drainage showed positive effects in reducing the occurrence of atelectasis. Furthermore, higher PEEP levels were associated with shorter hospital stay after CABG. Conclusion: The study has highlighted the potential benefit of optimizing PEEP levels to prevent atelectasis after CABG and the benefit of using a PEEP of 10 cmH2O in post CABG patient without history of respiratory complications, which contributes to decreasing LOS