Open AccessEffect of Equal Ratio Ventilation on Respiratory Mechanics and Oxygenation During Volume-Controlled Ventilation in Pediatric Patients
Author(s) -
Ha Yeon Kim,
Sung Yeon Ham,
Eun Jung Kim,
Hei Jin Yoon,
Seung Yeon Choi,
BonNyeo Koo
Publication year - 2021
Publication title -
yonsei medical journal/yonsei medical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.702
H-Index - 63
eISSN - 1976-2437
pISSN - 0513-5796
DOI - 10.3349/ymj.2021.62.6.503
Subject(s) - medicine , pulmonary compliance , mean airway pressure , ventilation (architecture) , anesthesia , plateau pressure , respiratory physiology , oxygenation , peak inspiratory pressure , airway , tidal volume , mechanical ventilation , compliance (psychology) , respiratory system , mechanical engineering , social psychology , psychology , engineering
Children have few small alveoli, which reduce lung compliance; in contrast, their cartilaginous rib cage makes their chest wall highly compliant. This combination promotes lung collapse. Prolonged inspiratory to expiratory (I:E) ratio ventilation is used to optimize gas exchange and respiratory mechanics in surgery. However, the optimal ratio is unclear in children. We hypothesized that, compared to a 1:2 I:E ratio, a 1:1 I:E ratio would improve dynamic compliance and oxygenation, and affect the peak airway pressure in pediatric patients undergoing surgery.