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01.08.2015 | original article | Ausgabe 15-16/2015 Open Access

Wiener klinische Wochenschrift 15-16/2015

High-frequency oscillatory ventilation combined with partial liquid ventilation in experimental lung injury: effects on lung cell apoptosis

Wiener klinische Wochenschrift > Ausgabe 15-16/2015
Huimin Zuo, Dr. Linxiang Zeng, Guanghua Guo, Huihong Zeng



To investigate the effects of high-frequency oscillatory ventilation (HFOV) and partial liquid ventilation (PLV) on apoptosis of lung tissue induced by steam inhalation injury in rabbit.


A prospective, randomized, controlled, multiple-group study.


An animal research laboratory centre in a university burns centre.


New Zealand rabbits (n = 32; 2.25 ± 0.25 kg) of either sex.


The animals were ventilated by HFOV with a mean airway pressure of 10 cm H2O, a frequency of 10 Hz, an amplitude of 20 cm H2O, an inspiratory:expiratory ratio of 1:1, and an FiO2 of 1.0. After the induction of acute lung injury (ALI) by steam inhalation, the animals were randomly divided into four groups: CMV, HFOV, CMV + PLV, HFOV + PLV group. Then they were ventilated for 4 h by CMV, HFOV, CMV + PLV and HFOV + PLV, respectively. After the experimental period, cell apoptosis and apoptosis indexes in the lung tissue were assessed with TUNEL FragELTM (Fragment End Labeling).


Lung tissue apoptosis indexes in HFOV group and HFOV + PLV group were lower than that of in CMV group and CMV + PLV group; between-group comparison had significant difference (P < 0.01). HFOV + PLV group showed lowest apoptosis indexes.


HFOV combined with PLV can suppress lung tissue apoptosis induced by steam inhalation.
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