Feasibility of postural lung recruitment maneuver in children: a randomized, controlled study
Background Pulmonary atelectasis in anesthetized children is easily reverted by lung recruitment maneuvers. However, the high airways pressure reached during the maneuver could negatively affect hemodynamics. The aim of this study is to assess the effect and feasibility of a postural lung recruitmen...
Saved in:
| Published in: | The ultrasound journal Vol. 12; no. 1; p. 34 |
|---|---|
| Main Authors: | , , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Cham
Springer International Publishing
14-07-2020
Springer Nature B.V SpringerOpen |
| Subjects: | |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Background
Pulmonary atelectasis in anesthetized children is easily reverted by lung recruitment maneuvers. However, the high airways pressure reached during the maneuver could negatively affect hemodynamics. The aim of this study is to assess the effect and feasibility of a postural lung recruitment maneuver (P-RM); i.e., a new maneuver that opens up the atelectatic lung areas based on changing the child’s body position under constant ventilation with moderated driving pressure (12 cmH
2
O) and of positive end-expiratory pressure (PEEP, 10 cmH
2
O). Forty ASA I–II children, aged 6 months to 7 years, subjected to general anesthesia were studied. Patients were ventilated with volume control mode using standard settings with 5 cmH
2
O of PEEP. They were randomized into two groups: (1) control group (C group,
n
= 20)—ventilation was turned to pressure control ventilation using a fixed driving pressure of 12 cmH
2
O. PEEP was increased from 5 to 10 cmH
2
O during 3 min maintaining the supine position. (2) P-RM group (
n
= 20)—patients received the same increase in driving pressure and PEEP, but they were placed, respectively, in the left lateral position, in the right lateral position (90 s each), and back again into the supine position after 3 min. Then, ventilation returned to baseline settings in volume control mode. Lung ultrasound-derived aeration score and respiratory compliance were assessed before (T1) and after (T2) 10 cmH
2
O of PEEP was applied.
Results
At baseline ventilation (T1), both groups showed similar aeration score (P-RM group 9.9 ± 1.9 vs C group 10.4 ± 1.9;
p
= 0.463) and respiratory compliance (P-RM group 15 ± 6 vs C group 14 ± 6 mL/cmH
2
O; p = 0.517). At T2, the aeration score decreased in the P-RM group (1.5 ± 1.6 vs 9.9 ± 2.1;
p
< 0.001), but remained without changes in the C group (9.9 ± 2.1;
p
= 0.221). Compliance was higher in the P-RM group (18 ± 6 mL/cmH
2
O) when compared with the C group (14 ± 5 mL/cmH
2
O;
p
= 0.001).
Conclusion
Lung aeration and compliance improved only in the group in which a posture change strategy was applied. |
|---|---|
| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 2524-8987 2524-8987 |
| DOI: | 10.1186/s13089-020-00181-8 |