According to this meta-analysis, PP increases the risk of pressure ulcers RR 1.29, 95%CI: 1.16 - 1.44, p < 0.00001; seven studies, n = 1279, endotracheal tube obstruction RR 1.58, 95%CI 1.24 - 2.1, p = 0.0002; seven studies n = 1351, and accidental chest tube removal RR 3.14, 95%CI 1.02 - 9.69, p = 0.05; eight studies, n = 886, of which only two studies reported events.
Según este meta-análisis, el DP aumenta el riesgo de úlceras por presión RR 1.29, IC95%: 1.16 - 1.44, p < 0.00001; 7 ensayos, n = 1279, obstrucción del tubo endotraqueal RR 1.58, IC95% 1.24 - 2.1, p = 0.0002; 7 ensayos n = 1351, y salida accidental de tubos torácicos RR 3.14, IC95% 1.02 - 9.69, p = 0.05; 8 ensayos, n = 886, de los que sólo 2 ensayos informaron eventos.