Clinical efficacy of pulse-oriented oscillation sputum evacuation apparatus combined with airway clearance techniques in preventing pulmonary infection following heart valve replacement surgery(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2026年第3期
- Page:
- 359-363
- Research Field:
- 医学生物物理
- Publishing date:
Info
- Title:
- Clinical efficacy of pulse-oriented oscillation sputum evacuation apparatus combined with airway clearance techniques in preventing pulmonary infection following heart valve replacement surgery
- Author(s):
- ZENG Liqiu; PAN Meizi; ZHANG Xiaoping
- Department of Cardiac Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou 362000, China
- Keywords:
- Keywords: pulmonary infection pulse-oriented oscillation sputum evacuation airway clearance technique heart valve replacement surgery dyspnea
- PACS:
- R454；R563.1
- DOI:
- DOI:10.3969/j.issn.1005-202X.2026.03.013
- Abstract:
- Abstract: Objective To explore the physical principles and clinical efficacy of pulse-oriented oscillation sputum evacuation apparatus combined with airway clearance techniques (ACT) for the prevention of pulmonary infection after heart valve replacement surgery. Methods A total of 120 patients undergoing heart valve replacement at Quanzhou First Hospital Affiliated to Fujian Medical University from July 2023 to June 2024 were enrolled and allocated into observation and control groups (60 cases each) according to the order of surgery. The control group received ACT alone, while the observation group was treated with pulse-oriented oscillation evacuation apparatus in combination with ACT. Treatment was administered for 7-10 days. The 30-day postoperative pulmonary infection rate, sputum clearance efficacy, daily sputum volume, and duration of pulmonary infection were compared between the two groups. Changes in the modified Medical Research Council (mMRC) scores, white blood cell counts, and C-reactive protein levels before and after treatment were recorded, and patient tolerance and comfort were evaluated. Results The observation group had a lower pulmonary infection rate and a higher total effective rate than the control group (3.33% vs 13.33%, P<0.05 91.67% vs 78.33%, P<0.05). The daily sputum volume on the 1st, 3rd, and 7th days were higher and the duration of pulmonary infection was shorter in the observation group than in the control group (P<0.05). Both groups showed reductions in mMRC scores, white blood cell counts, and C-reactive protein levels, with the observation group exhibiting lower values than the control group (P<0.05). Furthermore, patient tolerance and comfort were superior in the observation group (P<0.05). Conclusion Pulse-oriented directional oscillation sputum evacuation apparatus combined with ACT can reduce the incidence of pulmonary infection after heart valve replacement surgery, shorten pulmonary infection duration, alleviate infectious symptoms, improve sputum clearance efficacy and respiratory function, and is well tolerated by most patients.
Last Update: 2026-03-30