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Fulltext The impact of high frequency oscillatory ventilation on mortality in paediatric acute respiratory distress syndrome

Wong JJ, Liu S, Dang H, Anantasit N, Phan PH, Phumeetham S, et al.

Crit Care, 2020 01 31;24(1):31.
PMID: 32005285 DOI: 10.1186/s13054-020-2741-x

BACKGROUND: High-frequency oscillatory ventilation (HFOV) use was associated with greater mortality in adult acute respiratory distress syndrome (ARDS). Nevertheless, HFOV is still frequently used as rescue therapy in paediatric acute respiratory distress syndrome (PARDS). In view of the limited evidence for HFOV in PARDS and evidence demonstrating harm in adult patients with ARDS, we hypothesized that HFOV use compared to other modes of mechanical ventilation is associated with increased mortality in PARDS.
METHODS: Patients with PARDS from 10 paediatric intensive care units across Asia from 2009 to 2015 were identified. Data on epidemiology and clinical outcomes were collected. Patients on HFOV were compared to patients on other modes of ventilation. The primary outcome was 28-day mortality and secondary outcomes were 28-day ventilator- (VFD) and intensive care unit- (IFD) free days. Genetic matching (GM) method was used to analyse the association between HFOV treatment with the primary outcome. Additionally, we performed a sensitivity analysis, including propensity score (PS) matching, inverse probability of treatment weighting (IPTW) and marginal structural modelling (MSM) to estimate the treatment effect.
RESULTS: A total of 328 patients were included. In the first 7 days of PARDS, 122/328 (37.2%) patients were supported with HFOV. There were significant differences in baseline oxygenation index (OI) between the HFOV and non-HFOV groups (18.8 [12.0, 30.2] vs. 7.7 [5.1, 13.1] respectively; p

Matched MeSH terms: High-Frequency Ventilation/methods; High-Frequency Ventilation/mortality; High-Frequency Ventilation/standards*
Fulltext High Frequency Oscillating Ventilation (HFOV) in Severe Acute Respiratory Distress Syndrome (ARDS): A Case Report.

Azrina, M.R., Basri, M.N., Abdul Hadi, M., Fahmi, M.L., Asmarawati, M.Y., Ariff, O.

International Medical Journal Malaysia, 2010;9(1):51-53.
MyJurnal

High frequency oscillating ventilation (HFOV) provides a rescue therapy for patients with refractory hypoxaemia in severe acute respiratory distress syndrome (ARDS). HFOV utilizes high mean airway pressures to maintain an open lung and low tidal volumes at a high frequency that allows for adequate ventilation while at the same time preventing alveolar overdistension. This seems to be an ideal lung protective ventilation strategies to prevent ventilator-induced lung injury (VILI)2. We reported a case of severe extrapulmonary ARDS secondary to acute lymphoblastic leukaemia responding to the use of HFOV.

Matched MeSH terms: High-Frequency Ventilation
Fulltext Early outcome of congenital diaphragmatic hernia in a Malaysian tertiary centre

Rohana J, Boo NY, Thambidorai CR

Singapore Med J, 2008 Feb;49(2):142-4.
PMID: 18301842

This prospective observational study was conducted to determine the outcome of newborns with congenital diaphragmatic hernia (CDH). They were managed with a protocol of gentle ventilation to avoid barotraumas, and inhaled nitric oxide (iNO) or intravenous magnesium sulphate for treatment of persistent pulmonary hypertension of newborns (PPHN).

Matched MeSH terms: High-Frequency Ventilation*
Fulltext Severe respiratory sequelae of H1N1: clinical features, management and outcome – a review

Ismail A. Hamid, Marzida Mansor, Siok, Gracie Yan Ong, Kumar, N.M.

International e-Journal of Science, Medicine & Education, 2010;4(2):-.
MyJurnal

Since the outbreak of the novel influenza H1N1 in April 2009 in Mexico, more then half a million cases have been recorded with more then 6000 deaths.In contrast to seasonal flu, this virus appears to have a predilection for the young, obese and pregnant.It’s most important and almost fatal complication is Acute Respiratory Distress Syndrome (ARDS). Intensive care units (ICU) around the world have scrambled to upgrade various treatment modalities including high frequency oscillation ventilation, inotropes, antivirals and antibiotics in an effort to reduce the mortality arising out of this complication. More importantly, this complication appears reversible if adequate and early therapy is instituted. In particular, rescue therapies that allow the lung to rest appear to have brought success in some clinical settings. This article describes the experiences of seven centers that have used various modalities as rescue therapy in patients having Acute Respiratory Distress Syndrome (ARDS). The experiences in 13 patients at the University of Michigan, 58 in Mexico, 168 in Canada, 180 patients at Leicester UK, 194 in Australia and New Zealand and case reports from Hong Kong and Singapore are described.

Matched MeSH terms: High-Frequency Ventilation
Fulltext Inhaled nitric oxide and intravenous magnesium sulphate for the treatment of persistent pulmonary hypertension of the newborn

Boo NY, Rohana J, Yong SC, Bilkis AZ, Yong-Junina F

Singapore Med J, 2010 Feb;51(2):144-50.
PMID: 20358154

The aim of this study was to compare the response and survival rates of term infants with persistent pulmonary hypertension of the newborn (PPHN) on high frequency oscillatory ventilation (HFOV) treated with either inhaled nitric oxide (iNO) or intravenous magnesium sulphate (MgSO4).

Matched MeSH terms: High-Frequency Ventilation
The role of expressed breastmilk and continuous positive airway pressure as predictors of survival in extremely low birthweight infants

Boo NY, Puah CH, Lye MS

J Trop Pediatr, 2000 Feb;46(1):15-20.
PMID: 10730035

A case-control study was carried out on 152 extremely low birthweight (ELBW, < 1000 g) infants born consecutively in a large Malaysian maternity hospital during a 21-month period to determine the significant predictors associated with survival at discharge. Forty-nine (32.2 per cent) of these infants survived and 103 (67.8 per cent) died. The survivors weighed significantly heavier (mean = 888 g, SD = 99) than infants who died (mean = 763 g, SD = 131; p < 0.0001). They were also of higher gestational age (mean = 28.7 weeks, SD = 2.2) than those who died (mean = 26.7 weeks, SD = 2.5; p < 0.0001). Logistic regression analysis showed that, after controlling for various confounders, only three factors were significantly associated with the survival of these infants. These were: (1) increasing birthweight of the infants (with every gram increase in birthweight, adjusted odds ratio of survival was: 1.009; 95 per cent CI 1.004, 1.015; p = 0.0006); (2) given nasal continuous positive airway pressure for treatment of respiratory distress syndrome (adjusted odds ratio of survival: 4.2; 95 per cent CI 1.2, 14.0; p = 0.02); and (3) given expressed breastmilk (adjusted odds ratio of survival: 57.5; 95 per cent CI: 7, 474; p = 0.0002). Maternal illness, intrapartum problems, ethnicity, gestational age, use of antenatal steroid, modes of delivery, Apgar scores, congenital anomalies, respiratory distress syndrome, persistent ductus arteriosus, septicemia, necrotising enterocolitis, chronic lung disease, oxygen therapy, intermittent positive pressure ventilation, surfactant therapy, and blood transfusion were not significant factors associated with increased survival.

Matched MeSH terms: High-Frequency Ventilation