Effect of end-expiratory carbon dioxide monitoring on painless colonoscopy procedures in obstructive sleep apnea patients

Table 2 Comparison of baseline vital signs at different time points between the two groups

	Control group (n = 78)	Study group (n = 80)	T	P
Heart rate (beats/min)
T0	74.97 ± 3.247	74.54 ± 2.695	0.919	0.360
T1	71.60 ± 2.493	71.35 ± 2.886	0.588	0.557
T2	71.31 ± 4.638	72.45 ± 3.318	− 1.777	0.078
T3	69.94 ± 2.982	69.49 ± 3.561	0.859	0.392
T4	68.87 ± 0.827	68.71 ± 2.678	0.508	0.613
Respiratory rate (breaths/min)
T0	18.79 ± 0.779	-	-	-
T1	7.99 ± 0.764	-	-	-
T2	14.92 ± 1.510	-	-	-
T3	16.83 ± 1.390	-	-	-
T4	16.10 ± 1.447	-	-	-
Oxygen saturation (SpO₂)
T0	99.50 ± 0.503	99.54 ± 0.502	− 0.469	0.640
T1	98.64 ± 0.738	98.51 ± 0.503	1.276	0.204
T2	98.44 ± 1.100	98.09 ± 1.443	10,710	0.089
T3	97.88 ± 1.441	97.45 ± 1.668	1.751	0.082
T4	99.15 ± 0.722	99.20 ± 0.833	− 0.372	0.710
Blood pressure (mmHg)
Diastolic blood pressure (DBP)
T0	77.17 ± 1.436	76.91 ± 0.830	1.358	0.177
T1	67.62 ± 1.605	67.29 ± 4.467	0.617	0.539
T2	64.94 ± 3.906	64.69 ± 3.609	0.415	0.678
T3	65.44 ± 0.499	65.63 ± 1.060	− 1.440	0.153
T4	71.95 ± 2.512	71.81 ± 3.307	0.292	0.771
Systolic blood pressure (mmHg)
T0	116.92 ± 1.394	116.45 ± 1.757	1.878	0.062
T1	101.95 ± 1.385	101.66 ± 2.244	0.967	0.335
T2	128.05 ± 3.137	128.41 ± 2.385	− 0.813	0.417
T3	127.58 ± 2.344	128.40 ± 3.495	− 1.742	0.084
T4	119.33 ± 2.733	119.06 ± 1.426	0.778	0.438

Note: 5 min before anesthesia (T0), at the beginning of the operation (T1), 10 min after the beginning of the operation (T2), 20 min after the beginning of the operation (T3), and at the end of the operation (T4)

ISSN: 2047-0525