Speaking valves in tracheostomised ICU patients weaning off mechanical ventilation - do they facilitate lung recruitment?

Table 1 Participant ventilation needs

Patient number	Vent. needs^a	Weaned Y/N	PS	PEEP	FiO₂	Flow
1	HFTP	N	N/A	N/A	40 %	40 L
2	HFTP	Y	N/A	N/A	40 %	40 L
3	LFTP	N	N/A	N/A	30 %	5 L
4	HFTP	N	N/A	N/A	40 %	50 L
5	PSV	N	10	5	40 %	N/A
6	HFTP	N	N/A	N/A	40 %	50 L
7	HFTP	N	N/A	N/A	40 %	40 L
8	PSV	N	15	10	35 %	N/A
9	HFTP	N	N/A	N/A	50 %	50 L
10	PSV	N	13	10	40 %	N/A
11	HFTP	N	N/A	N/A	40 %	40 L
12	PSV	N	10	7.5	40 %	N/A
13	PSV	N	15	5	35 %	N/A
14	HFTP	N	N/A	N/A	30 %	30 L
15	HFTP	N	N/A	N/A	40 %	40 L
16	PSV	N	10	8	40 %	N/A
17	PSV	N	10	5	35 %	N/A
18	PSV	N	12	5	40 %	N/A
19	PSV	N	12	8	45 %	N/A
20	PSV	N	12	7.5	40 %	N/A

^arespiratory needs at point of recruitment. Considered not weaned if needed mechanical ventilation (Vent.) in the preceding 24 h
FiO ₂ fraction of inspired oxygen, Flow O₂ flow requirements at point of recruitment, HFTP high-flow tracheostomy piece (>30 L/min of O₂), LFTP low-flow tracheostomy piece (<30 L/min of O₂), PEEP positive end-expiratory pressure, PS pressure support, PSV pressure support ventilation

ISSN: 1364-8535