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Chinese Archives of General Surgery(Electronic Edition) ›› 2022, Vol. 16 ›› Issue (01): 37-41. doi: 10.3877/cma.j.issn.1674-0793.2022.01.007

• Original Article • Previous Articles     Next Articles

Analysis of factors affecting prolonged mechanical ventilation after liver transplantation

Liangwen Cui1, Enqiang Guo2, Liujin Hou2, Fan Huang2, Xiaochun Peng1, Hongchuan Zhao2, Min Shao1, Nian Liu1,()   

  1. 1. Department of Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
    2. Organ Transplant Center, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
  • Received:2021-11-15 Online:2022-02-01 Published:2022-03-02
  • Contact: Nian Liu

Abstract:

Objective

To investigate the clinical features, prognosis of patients with prolonged mechanical ventilation (PMV) after liver transplantation and the related factors affecting the occurrence of PMV.

Methods

The data of 105 adult patients with liver transplantation from April 2016 to April 2021 treated in the First Affiliated Hospital of Anhui Medical University were retrospectively analyzed. They were divided into PMV group (39 cases) and non-PMV group (66 cases) based on whether the postoperative mechanical ventilation time exceeded 24 hours. The general data, clinical characteristics and prognosis of the two groups were compared. Univariate analysis and logistic regression model were used to screen the factors affecting PMV after liver transplantation. Survival analysis was performed using Kaplan-Meier curves.

Results

Previous history of upper abdominal surgery (OR=0.284, 95% CI: 0.084-0.963, P=0.043) and preoperative Child-Pugh score (OR=1.439, 95% CI: 1.026-2.017, P=0.035) were independent risk factors for PMV after liver transplantation. The 180-day survival rate was 74.36% in PMV group and 84.85% in non-PMV group, with no significant difference (Log-rank χ2=0.061, P=0.804).

Conclusions

Preoperative upper abdominal surgery and preoperative Child-Pugh score are independent influencing factors of PMV after liver transplantation. PMV results in higher resistance bacterial infections rate without affecting the 6-month survival rate of patients after liver transplantation. Fully handling the preoperative complications and reducing the factors leading to PMV can shorten the time of mechanical ventilation as much as possible, which is beneficial to the patients.

Key words: Liver transplantation, Mechanical ventilation time, Prolonged, Factors, Prognosis

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