Research Article

Low-Dose Ketamine Infusion for Perioperative Pain Management in Patients Undergoing Laparoscopic Gastric Bypass: A Prospective Randomized Controlled Trial

Table 2

Medical comorbidity data between the two therapy groups.

Medical comorbidities between groups
CKTotal value
(N = 18)(N = 17)(N = 35)

A-fib0.29651
 N18 (100.0%)16 (94.1%)34 (97.1%)
 Y0 (0.0%)1 (5.9%)1 (2.9%)

Asthma0.58081
 N16 (88.9%)16 (94.1%)32 (91.4%)
 Y2 (11.1%)1 (5.9%)3 (8.6%)

CAD0.32411
 N17 (94.4%)17 (100.0%)34 (97.1%)
 Y1 (5.6%)0 (0.0%)1 (2.9%)

Chronic pain0.51191
 N17 (94.4%)15 (88.2%)32 (91.4%)
 Y1 (5.6%)2 (11.8%)3 (8.6%)

COPD0.29651
 N18 (100.0%)16 (94.1%)34 (97.1%)
 Y0 (0.0%)1 (5.9%)1 (2.9%)

CPAP0.58081
 N8 (44.4%)6 (35.3%)14 (40.0%)
 Y10 (55.6%)11 (64.7%)21 (60.0%)

Depression0.77381
 N13 (72.2%)13 (76.5%)26 (74.3%)
 Y5 (27.8%)4 (23.5%)9 (25.7%)

GERD0.60051
 N9 (50.0%)10 (58.8%)19 (54.3%)
 Y9 (50.0%)7 (41.2%)16 (45.7%)

HF0.29651
 N18 (100.0%)16 (94.1%)34 (97.1%)
 Y0 (0.0%)1 (5.9%)1 (2.9%)

HLD0.35761
 N10 (55.6%)12 (70.6%)22 (62.9%)
 Y8 (44.4%)5 (29.4%)13 (37.1%)

HTN0.22911
 N10 (55.6%)6 (35.3%)16 (45.7%)
 Y8 (44.4%)11 (64.7%)19 (54.3%)

Morbid obesity
 Y18 (100.0%)17 (100.0%)35 (100.0%)

OA0.02791
 N17 (94.4%)11 (64.7%)28 (80.0%)
 Y1 (5.6%)6 (35.3%)7 (20.0%)

OSA0.82591
 N7 (38.9%)6 (35.3%)13 (37.1%)
 Y11 (61.1%)11 (64.7%)22 (62.9%)

PONV0.96681
 N17 (94.4%)16 (94.1%)33 (94.3%)
 Y1 (5.6%)1 (5.9%)2 (5.7%)

T2DM0.05291
 N15 (83.3%)9 (52.9%)24 (68.6%)
 Y3 (16.7%)8 (47.1%)11 (31.4%)

1Chi-square test. A-fib = atrial fibrillation, CAD = coronary artery disease, COPD = chronic obstructive pulmonary disease, CPAP = continuous positive airway pressure device use, GERD = gastroesophageal reflux disease, HF = heart failure, HLD = hyperlipidemia, HTN = hypertension, OA = osteoarthritis, OSA = obstructive sleep apnea, PONV = postoperative nausea and vomiting, and T2DM = type 2 diabetes mellitus.