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Chinese Journal of Critical Care Medicine(Electronic Edition) ›› 2023, Vol. 16 ›› Issue (06): 469-474. doi: 10.3877/cma.j.issn.1674-6880.2023.06.005

• Original Article • Previous Articles    

Curative effect of intrapulmonary percussion ventilation in patients with mechanical ventilation after upper abdominal surgery

Xiang Xue, Jiao Chen, Ling Jia, Jinghui Yang, Jianqin Cai, Kunlun Chen, Wei Zhao()   

  1. Department of Critical Care Medicine, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211100, China
  • Received:2023-05-06 Online:2023-12-31 Published:2024-02-05
  • Contact: Wei Zhao

Abstract:

Objective

To explore the therapeutic effect of intrapulmonary percussion ventilation (IPV) in patients with mechanical ventilation after upper abdominal surgery.

Methods

A total of 68 patients with mechanical ventilation after upper abdominal surgery admitted to the Department of Critical Care Medicine in the Sir Run Run Hospital, Nanjing Medical University from December 2021 to December 2022 were selected, who were divided into a observation group (34 cases) and a control group (34 cases) by a random number table method. Patients in the observation group were treated with IPV and patients in the control group were treated with conventional chest physiotherapy. The sputum volume, oxygenation index, arterial partial pressure of carbon dioxide (PaCO2) and airway peak pressure before treatment and at 1, 3 and 5 d after treatment were compared between the two groups, as well as the incidence of atelectasis and pneumonia, duration of mechanical ventilation, length of ICU stay and 28 d mortality. Then the systolic blood pressure, heart rate and respiratory rate were compared between the two groups before and after treatment.

Results

There were significant differences in the sputum volume, oxygenation index, PaCO2 and airway peak pressure before treatment and at 1, 3 and 5 d after treatment between the observation group and control group (F = 28.606, 30.316, 18.276, 21.143; P = 0.014, 0.008, 0.026, 0.018). Further pairwise comparisons found that the sputum volume and oxygenation index in the observation group were significantly higher than those in the control group at 1, 3 and 5 d after treatment, while the PaCO2 and airway peak pressure were significantly lower (all P < 0.05). The incidence of postoperative atelectasis [11.76% (4/34) vs. 23.53% (8/34), χ2 = 3.245, P = 0.011], incidence of pneumonia [8.82% (3/34) vs. 17.65% (6/34), χ2 = 2.632, P = 0.018], duration of mechanical ventilation [(36 ± 24) h vs. (73 ± 40) h, t = 3.726, P = 0.012] and length of ICU stay [(5.4 ± 2.6) d vs. (7.4 ± 3.1) d, t = 2.123, P = 0.034] in the observation group were significantly lower than those in the control group. However, there were no significant differences in the systolic blood pressure [(128 ± 13) mmHg vs. (125 ± 10) mmHg, t = 1.323, P = 0.287], heart rate [(88 ± 6) beats/min vs. (87 ± 13) beats/min, t = 3.154, P = 0.072], respiratory rate [(20 ± 6) breaths/min vs. (19 ± 5) breaths/min, t = 1.018, P = 0.351] and 28 d mortality [2.94% (1/34) vs. 5.88% (2/34), χ2 = 1.024, P = 0.175] between the observation group and control group after treatment.

Conclusion

IPV can promote sputum excretion, improve oxygenation and ventilation function, reduce the incidence of atelectasis and pneumonia, and shorten the duration of mechanical ventilation and ICU stay in mechanically ventilated patients after upper abdominal surgery, which is safe and tolerable.

Key words: Intrapulmonary percussion ventilation, Epigastric surgery, Mechanical ventilation, Postoperative pulmonary complications, Atelectasis

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