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Retrospective Study
©The Author(s) 2026.
World J Gastrointest Surg. Jan 27, 2026; 18(1): 112988
Published online Jan 27, 2026. doi: 10.4240/wjgs.v18.i1.112988
Table 4 Comparison of pulmonary complications and respiratory parameters between epidural anesthesia and intravenous patient-controlled analgesia groups, n (%)
Indicator
Parameter EA group (n = 84)
IVPCA group (n = 84)
P value
Pulmonary complications
Overall incidence10 (11.9)20 (23.8)0.042
Atelectasis7 (8.3)15 (17.9)0.038
Pneumonia3 (3.6)8 (9.5)0.047
Respiratory parameters
Oxygen saturation97.2 ± 1.395.8 ± 1.70.014
PaO2/FiO2 ratio342 ± 44315 ± 520.009
Incentive spirometry volume on POD 2 (mL)1450 ± 3201210 ± 2900.007
Oxygen therapy
Duration of supplemental oxygen (hours)22 (18-36)36 (24-48)0.011


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