Table 1.
Characteristics of the included studies: type of study, sample, sample size and intervention performed
| Author | Type of study | Sample | Sample size | Intervention |
|---|---|---|---|---|
| Gregson et al.(5) | Clinical trial | 105 sedated children | Did not mention | MH was performed with or without TVC. The data were measured at three time points: (1) before the intervention, with the patient receiving mechanical ventilation; (2) while receiving MH and (3) while receiving MH associated with TVC during expiration |
| Viana et al.(17) | Randomized clinical trial | 28 preterm neonates | 28 individuals | In all patients, two respiratory physical therapy interventions were performed, and MH with and without the PEEP regulating valve was compared. The variables were measured 5 minutes before tracheal aspiration and at 1 and 30 minutes after aspiration |
| Soudararajan et al.(18) | Clinical trial | 18 pediatric patients during the postoperative period of cardiac surgery | Convenience sample | MH followed by TVC was applied to all patients. Two physical therapists were needed; one performed MH, and the other performed TVC. The variables were measured before and 30 minutes after MH |
| Novais de Oliveira et al.(19) | Randomized crossover clinical trial | 22 physical therapists | Based on previous studies | Two groups (experienced and inexperienced physical therapists) simulated MH in two neonatal test lungs (neonatal and pediatric) in two clinical situations each (one healthy lung and one with decreased compliance). The MRs were from 3 different manufacturers |
| de Oliveira et al.(20) | Cross-sectional randomized clinical trial | 22 physical therapists | Did not mention | The performance of 3 MRs from different manufacturers was evaluated with two test lungs (neonatal and pediatric) and with different oxygen flow rates. Two situations were simulated: healthy (normal respiratory mechanics) and restrictive (decreased lung compliance). The lungs were connected to a 100% oxygen source with oxygen flow rates of 0, 5, 10 and 15 L/minute. All of the physical therapists performed 10 manual hyperinflations with each of the 3 resuscitators for both the neonatal and pediatric lungs |
| Koop et al.(21) | Clinical trial | 9 preterm newborns | Did not mention | In all patients, interventional neonatal physical therapy procedures were performed that included pulmonary auscultation, TVC, vibration and thoracoabdominal support. Subsequently, MH was applied, and the OTT was aspirated. Data were collected before the maneuver and at 1, 5 and 10 minutes after the intervention |
MH - manual hyperinflation; TVC - thoracic vibrocompression; PEEP - positive end-expiratory pressure; MR - manual resuscitator; OTT - orotracheal tube.