Abstract:

Objective

To investigate the lung injury and its influencing factors in elderly patients after hip fracture.

Methods

Three hundred and eighty-one elderly patients with hip fracture received in Emergency Truma Surgery Department of Jining NO.1 People′s Hospital from March 2022 to March 2024 were selected.The patients were divided into lung injury group （n=41） and non-injury group （n=340）after operations according to their general data.Univariate analysis was used to compare the differences in general data between the two groups.Subsequently，Logistic regression analysis was conducted to identify the risk factors of lung injury after hip fracture in elderly patients.

Results

Among the 381 patients，the total incidence of pulmonary complications was 10.76%（41/381）.The types of lung injuries in 41 cases included pulmonary infection （19 cases），pleural effusion （7 cases），respiratory failure （6 cases），aspiration pneumonia （3 cases） and atelectasis （6 cases）.Body mass index（BMI）＞30 kg/m²，American Society of Anesthesiologists（ASA） grade ≥Ⅲ，operation time ≥2 h，bed time ≥2 d before surgery，mechanical ventilation and ICU admission were all influential factors for postoperative lung injury （OR=1.048，1.176，1.022，1.227，1.081，all P＜0.05）.

Conclusion

Obesity，higher ASA grade，prolonged preoperative bed rest time，need for mechanical ventilation and admission to the ICU are closely associated with the occurrence of postoperative lung injury in elderly patients with hip fractures，which should be paid attention in clinical practice to reduce the incidence of postoperative lung injury.

Key words: Hip fracture, Lung injury, Method of anesthesia, Investigation of current situation, Risk factors