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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Kimura, Sasagu Toyoshima, Katsuaki Shimokaze, Tomoaki Hoshino, Rikuo |
| Abstract | Background Congenital diaphragmatic hernia is a deficiency of the fetal diaphragm resulting in herniation of the abdominal viscera into the thoracic cavity. The best method of respiratory management of congenital diaphragmatic hernia is unclear, but high frequency oscillatory ventilation is often used as the initial ventilator mode for severe congenital diaphragmatic hernia. When it becomes impossible to maintain the pre-ductal saturations, the timing of successful switching of the ventilation mode from high frequency oscillatory ventilation to conventional mechanical ventilation remains unclear. Herein, we reported two cases in which airway resistance measurements based on pulmonary function tests were used for making the decision to switch the ventilator mode from high frequency oscillatory ventilation to conventional mechanical ventilation in patients with left isolated congenital diaphragmatic hernia. Case presentation Two 0-day-old infants with congenital diaphragmatic hernia were admitted to our hospital. In both patients, high frequency oscillatory ventilation was started initially, and the levels of saturation gradually rose within a few hours after birth. After 24 h of high frequency oscillatory ventilation, the level of saturation decreased, and the dissociation of pre-ductal and post-ductal saturation re-occurred. The respiratory-system resistance was 515 and 403 cmH2O·kg/L/s, respectively. Because the respiratory-system resistance was elevated, we decided to change the ventilator mode from high frequency oscillatory ventilation to conventional mechanical ventilation. After switching to conventional mechanical ventilation, the patients’ heart rate and saturation increased immediately. Conclusions In patients with congenital diaphragmatic hernia, resistance levels of > 400 cmH2O·kg/L/s may indicate high airway resistance and suggest greater alveolar vibration attenuation. When respiratory-system resistance reaches over 400 cmH2O·kg/L/s, it may be an optimal time for switching from high frequency oscillatory ventilation to conventional mechanical ventilation. |
| Related Links | https://bmcpediatr.biomedcentral.com/counter/pdf/10.1186/s12887-020-02258-8.pdf |
| Ending Page | 6 |
| Page Count | 6 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14712431 |
| DOI | 10.1186/s12887-020-02258-8 |
| Journal | BMC Pediatrics |
| Issue Number | 1 |
| Volume Number | 20 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2020-08-03 |
| Access Restriction | Open |
| Subject Keyword | Pediatrics Internal Medicine Conventional mechanical ventilation Extra-corporeal membrane oxygenation High frequency oscillatory ventilation Oxygenation index Persistent pulmonary hypertension of the newborn |
| Content Type | Text |
| Resource Type | Case study |
| Subject | Pediatrics, Perinatology and Child Health |
| Journal Impact Factor | 2/2023 |
| 5-Year Journal Impact Factor | 2.4/2023 |
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