Comparison of bilevel positive airway pressure and average volume-assured pressure support mode in terms of patient compliance and treatment success in hypercapnic patients. A cross-sectional study

Canpolat G., Ozgultekin A., Boran Ö. F.

Annali Italiani di Chirurgia, vol.8, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 8
  • Publication Date: 2019
  • Journal Name: Annali Italiani di Chirurgia
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Average Volume Assured Pressure Support, Bilevel Continuous Positive Airway Pressure, Intensive Care Units, Noninvasive Ventilation, Patients Compliance
  • Istanbul Medipol University Affiliated: Yes


AIM: It is necessary for an effective NIV application to provide proper modality selection, sufficient minute ventilation (MV), also the amount of leakage on the circuit must be minimized and patient-ventilator adaptation must be achieved. METHODS: 30 patients with acute respiratory failure as a result of either internal or postoperative reasons were included in the study. Patient comfort was analyzed with a scale ranging from 0 to 2. Firstly the patient was used for two hours in BIPAP modality, after then the AVAPS modality (Period Av) was applied by setting the required rates the same mask. During BIPAP and AVAPS, arterial blood gases analysis, comfort scale and hemodynamic parameters were recorded in the 30th minute, 1st hour and 2nd hour. RESULTS: According to the assessment of arterial blood gases, the pH changes of both periods were statistically significant compared to their baseline values (p=0.001). Treatment compliance of the patients was significantly better at AVAPS modality at all times (p = 0.015, p = 0.008, p = 0.008, respectively). CONCLUSIONS: According to the results obtained from this study, the AVAPS modality has positive effects on pH and gas variation and patient comfort; therefore, it can be confidently used in clinical practice.