Low suction on digital drainage devices promptly improves post-operative air leaks following lung resection operations: a retrospective study

Table 3 Clinical outcomes (anatomical resection)

Clinical Outcome	Low Pressure Group A	Intermediate Pressure Group B	High Pressure Group C	P value (difference between groups)			P value (Jonckheere-Terpstra test statistics)
Clinical Outcome	Low Pressure Group A	Intermediate Pressure Group B	High Pressure Group C	A vs B	A vs C	B vs C	P value (Jonckheere-Terpstra test statistics)
Duration of air leaks, d	0.90 ± 2.00	1.55 ± 2.13	1.94 ± 1.98	0.175	0.009	0.194	0.010
Duration of chest tube replacement, d	2.72 ± 2.03	3.10 ± 2.00	3.15 ± 1.96	0.580	0.250	0.580	0.141
Postoperative air leak, mL/min	26.20 ± 60.79	8.51 ± 12.15	42.94 ± 108.36	0.467	0.061	0.061	0.017
Postoperative 1st day air leak, mL/min	12.76 ± 35.75	6.81 ± 11.05	15.59 ± 20.63	0.160	0.019	0.082	0.008
Postoperative 2nd day air leak, mL/min	8.46 ± 24.77	5.22 ± 10.05	12.06 ± 35.31	0.830	0.790	0.830	0.389
Maximum air leaks, mL/min	28.28 ± 61.59	8.93 ± 12.55	51.18 ± 111.02	0.647	0.043	0.020	0.010
Fluid volume, mL	424.6 ± 413.5	459.3 ± 349.0	477.7 ± 354.8	0.940	0.940	0.940	0.288

Postoperative air leak: Postoperative air leak immediately after surgery. Maximum air leaks: the maximum amount of air leaks during drainage. Fluid volume: Fluid volume drained before chest tube removal

ISSN: 1749-8090