Pleurotomy with subxyphoid pleural drain affords similar effects to pleural integrity in pulmonary function after off-pump coronary artery bypass graft

Table 1 Pre and intraoperative clinical and demographic parameters.

Variables	Group I (n = 38)	Group II (n = 33)	p Value
Age (years)	59.84 ± 8.44	60.18 ± 7.29	0.85
Male/female	30/08	27/6	0.76
BMI (kg/m²)	26.96 ± 3.34	27.58 ± 3.40	0.44
Pulmonary function
FVC (L)	3.55 ± 0.61	3.64 ± 0.64	0.27
% predicted	97.72 ± 13.42	99.44 ± 13.07	0.29
FEV₁ (L)	2.78 ± 0.44	2.86 ± 0.49	0.23
% predicted	100.6 ± 12.20	98.88 ± 11.25	0.26
PaO₂ (mmHg)	76.18 ± 5.75	77.36 ± 4.49	0.34
PaCO₂ (mmHg)	38.47 ± 3.47	39.15 ± 3.65	0.42
Shunt fraction (%)	0.04 ± 0.02	0.03 ± 0.02	0.09
Operative time (min)	304.7 ± 20.70	300.6 ± 19.75	0.39
Grafts per patient	2.47 ± 0.68	2.54 ± 0.66	0.65

Data are shown as mean ± standard deviation. (BMI = body mass index; FEV₁ = Forced expiratory volume in 1 second; FVC = forced vital capacity; PaCO₂ = partial pressure of arterial carbon dioxide; PaO₂ = partial pressure of arterial oxygen).

ISSN: 1749-8090