In this study, 113 patients were enrolled according to the inclusion criteria, 38 patients were excluded according to the exclusion criteria (including 21 patients with preoperative vital organ dysfunction, 4 patients with a severe mental disorder, and 13 patients with sinus bradycardia), and 12 patients were excluded during the study (including 4 patients requiring conversion to open surgery, 2 patients in each group; 2 patients whose operation time was > 4 hours, 1 patient in each group; 4 patients who were sent to ICU after surgery, 2 patients in each group; 2 patients with incomplete follow-up data, 1 patient in each group), finally, 32 patients in the group L and 31 patients in group C were analyzed (Fig. 1).
There were no statistically significant differences between the two groups in gender, age, BMI, ASA classification, duration of anesthesia, operation time, intraoperative fluid infusion, intraoperative blood loss, and urine output (P > 0.05, Table 1).
Table 1
Comparison of general information of the two groups of patients (cases or ‾x±s)
Groups
|
Cases
|
Gender
(M/F)
|
Age (years)
|
BMI (kg/m)
|
ASA
(Ⅱ/Ⅲ)
|
Duration of anesthesia (h)
|
Operation time (h)
|
Intraoperative fluid infusion (mL)
|
Intraoperative blood loss (mL)
|
Urine output (mL)
|
Group C
|
31
|
|
608 ± 8.3
|
24.0 ± 2.5
|
18/14
|
4.2 ± 0.3
|
3.5 ± 0.4
|
2046.9
± 464.2
|
120.6
± 89.3
|
503.4
± 264.1
|
Group L
|
32
|
22/10
|
68 ± 8.1
|
24.9 ± 3.0
|
17/14
|
4.1 ± 0.5
|
3.3 ± 0.5
|
2140.0
± 386.5
|
122.6
± 63.0
|
521.0
± 359.8
|
t/Z value
|
|
0.776
|
-0.484
|
0.177
|
0.013
|
-1.551
|
-0.430
|
0.855
|
0.100
|
0.220
|
P value
|
|
0.439
|
0.976
|
0.934
|
0.910
|
0.126
|
0.830
|
0.396
|
0.921
|
0.827
|
Note: ASA: American Society of Anesthesiologists classification BMI: Body Mass Index |
Compared with group C, the amount of propofol and remifentanil used during surgery in group L was significantly reduced (P < 0.05, Table 2).
Table 2
Comparison of intraoperative propofol and remifentanil consumption between two groups of patients (‾x±s)
Groups
|
Cases
|
Propofol consumption (mg)
|
Sufentanil consumption (µg)
|
Group C
|
31
|
1601.2 ± 241.2
|
3146.0 ± 356.0
|
Group L
|
32
|
1376.8 ± 247.1
|
2695.2 ± 380.4
|
t value
|
|
3.647
|
4.864
|
P value
|
|
0.001
|
0.000
|
Note: Compared with the group C, P < 0.05 |
Compared with the preoperative data, the sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbance, daytime dysfunction scores, and total PSQI scores were significantly increased at 1 d, 2 d, and 3 d after surgery in the two groups (P < 0.05). There were no significant differences between the data obtained 1 d after surgery and that obtained 2 d after surgery in the sleep quality, sleep duration, sleep efficiency, and daytime dysfunction scores of patients in the group L (P > 0.05), while the sleep quality, sleep duration, sleep efficiency, daytime dysfunction scores, and total PSQI score of patients in the group, C was significantly increased 2 d after surgery compared with the data obtained 1 d after surgery (P < 0.05). 3 days after surgery, the sleep latency, sleep efficiency, sleep disturbance scores, and total PSQI scores of patients in the two groups were significantly reduced (P < 0.05). There were no significant differences between the data obtained 2 d after surgery and that obtained 3 d after surgery in the sleep quality, sleep duration, sleep efficiency, and sleep disturbance scores of patients in the two groups (P > 0.05). Compared with group C, the sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbance, daytime dysfunction scores, and PSQI score of patients in the group, L was significantly reduced 1 d, 2 d, and 3 d after surgery (P < 0.05, Table 3).
Compared with the preoperative data, the incidence of sleep disturbance at 1 d, 2 d, and 3 d after surgery in group C was significantly increased, and the incidence of sleep disturbance at 1 d after surgery in group L was significantly increased (P < 0.05). Compared with the data obtained at 1 d after surgery, the sleep of patients in group L returned to the preoperative level at 2 d and 3 d after surgery (P < 0.05). Compared with group C, the incidence of sleep disturbance was significantly decreased at 1 d, 2 d, and 3 d after surgery in group L (P < 0.05, Table 4).
Table 3
Comparison of scores of different items of PSQI scale and total PSQI score between two groups of patients at different time points [Min, M (IQR)]
Items
|
Groups
|
Cases
|
Before surgery
|
1 d after surgery
|
2 d after surgery
|
3 d after surgery
|
Sleep quality score
|
Group C
|
31
|
1(0–1)
|
2(1–3)ad
|
2(1–2)ad
|
2(1–2)ad
|
Group L
|
32
|
1(0–1)
|
1(1–1)a
|
1(1–1)a
|
1(1–1)a
|
Sleep latency score
|
Group C
|
25
|
0(0–1)
|
2(1–3)ad
|
2(2–3)ad
|
1(0–1)abc
|
Group L
|
25
|
0(0–1)
|
1(1–1)a
|
1(1-1.75)a
|
1(0.25-1)ab
|
Sleep duration score
|
Group C
|
25
|
0(0–1)
|
2(1–3)ad
|
1(1–2)ad
|
1(1–2)a
|
Group L
|
25
|
1(1–2)
|
1(1–1)
|
1(1–1)
|
1(1–1)
|
Sleep efficiency score
|
Group C
|
31
|
1(1–1)
|
2(1–3)ad
|
1(1–2)ad
|
1(1–2)ad
|
Group L
|
32
|
1(1–1)
|
1(1–1)a
|
1(1–1)a
|
1(0–1)abc
|
Sleep disturbance score
|
Group C
|
31
|
0(0–1)
|
2(1–3)ad
|
1(0–3)ab
|
1(0–2)abd
|
Group L
|
32
|
0(0–1)
|
1(1–1)a
|
1(0–1)a
|
0(0–1)ab
|
Sleep medication score
|
Group C
|
31
|
0(0–0)
|
0(0–0)
|
0(0–0)
|
0(0–0)
|
Group L
|
32
|
0(0–0)
|
0(0–0)
|
0(0–0)
|
0(0–0)
|
Daytime dysfunction score
|
Group C
|
31
|
0(0–0)
|
2(1–3)ad
|
1(1–2)abd
|
1(1–2)abd
|
Group L
|
32
|
0(0–0)
|
1(1–1)a
|
1(1–1)a
|
1(0–1)abc
|
Total PSQI score
|
Group C
|
31
|
3(2–6)
|
10(6–16)ad
|
6(6–10)abd
|
6(6–12)abd
|
Group L
|
32
|
3(2–4)
|
6(5–7)a
|
4(4–6)ab
|
4(4–5)ab
|
Note: PSQI: Pittsburgh Sleep Quality Index; compared with preoperative data, aP < 0.05; compared with the data obtained 1 day after surgery, bP < 0.05; compared with the data obtained 2 days after surgery, cP < 0.05; compared with group C, dP < 0.05. |
Table 4
Comparison of the incidence of postoperative sleep disturbance between the two groups [cases (%)]
Groups
|
Cases
|
Before surgery
|
1 d after surgery
|
2 d after surgery
|
3 d after surgery
|
Group C
|
31
|
4(12.90)
|
16(48.39)
|
12(38.71)
|
12(38.71)
|
Group L
|
32
|
4(12.50)
|
7(22.58)
|
4(15.63)
|
4(15.63)
|
X2 value
|
|
0.002
|
6.007
|
5.709
|
5.709
|
P value
|
|
0.962
|
0.014
|
0.017
|
0.017
|
Note: Compared with group C, P < 0.05 |
Compared with group C, the first time to get out of bed, the first time to exhaust, the first time to defecate, and the first time to eat were significantly shortened in group L (P < 0.05, Table 5).
Table 5
Comparison of postoperative rapid recovery index between two groups (‾x±s)
|
Groups
|
Cases
|
First time of out bed (d)
|
First exhaust time
(d)
|
First defecation time
(d)
|
First eating time
(d)
|
Group C
|
31
|
0.91 ± 0.16
|
1.91 ± 0.17
|
2.62 ± 0.31
|
3.30 ± 0.33
|
Group L
|
32
|
0.81 ± 0.17
|
1.80 ± 0.16
|
2.44 ± 0.32
|
3.13 ± 0.34
|
t value
|
|
-2.388
|
-2.502
|
2.192
|
2.041
|
P value
|
|
0.200
|
0.015
|
0.032
|
0.046
|
Note: Compared with group C, P < 0.05 |
Compared with group C, the VAS scores in group L at rest and on movement 2 h after surgery were significantly reduced (P < 0.05). There were no significant differences in the VAS scores between the two groups of patients at rest and on movement at 4 h, 6 h, 12 h, 24 h, and 72 h after surgery (P > 0.05, Tables 6, 7).
Table 6
Comparison of the VAS scores at rest between the two groups of patients at different time points [Min, M (IQR)]
State
|
Groups
|
Cases
|
T1
|
T2
|
T3
|
T4
|
T5
|
T6
|
T7
|
At rest
|
Group C
Group L
|
31
|
1(0–3)a
3(2–4)a
|
2(1–3)
3(2–4)
|
2(1–3)
3(2–3)
|
2(1–3)
2(1.75-3)
|
3(1-3.5)
2(1–3)
|
2(1–3)
2(1–3)
|
2(1–2)
2(1–3)
|
Z value
|
|
|
-2.594
|
-1.922
|
-0.996
|
-0.148
|
-0.434
|
-0.368
|
-1.332
|
P value
|
|
|
0.009
|
0.055
|
0.319
|
0.883
|
0.664
|
0.713
|
0.183
|
Table 7
Comparison of the VAS scores on movement between the two groups of patients at different time points [Min, M (IQR)]
State
|
Groups
|
Cases
|
T1
|
T2
|
T3
|
T4
|
T5
|
T6
|
T7
|
On movement
|
Group C
Group L
|
32
|
3(1.5–5.5)a
4.5(3.75–6.25)a
|
4(2-5.5)
4(3–6)
|
4(2–5)
4(3.75-6)
|
4(3–6)
4(3–6)
|
5(3–6)
4(3–6)
|
4(3.5-6)
4(3–6)
|
4(3-4.5)
4(3–6)
|
Z value
|
|
|
-2.406
|
-1.102
|
-1.378
|
-0.578
|
-1.117
|
-0.385
|
-1.291
|
P value
|
|
|
0.016
|
0.271
|
0.168
|
0.564
|
0.264
|
0.700
|
0.197
|
Note: T1: 2h after surgery, T2: 4h after surgery, T3: 8h after surgery, T4: 12h after surgery, T5: 24h after surgery, T6: 48h after surgery, T7: 72h after surgery; compared with group C, aP < 0.05. |
In group C, remedial analgesia was carried out for 3 cases 1 day after surgery, 4 cases 2 days after surgery, and 2 cases 3 days after surgery. In group L, remedial analgesia was carried out for 2 patients on the 1st day after surgery, 6 patients on the 2nd day after surgery, and 2 patients on the 3rd day after surgery. In group C, 8 patients had PONV, 1 had intestinal obstruction, 1 had a lung infection, and 1 had arrhythmia; in group L, 3 patients had PONV, 1 had a lung infection, and 1 had arrhythmia. There were no statistically significant differences between the two groups in the incidences of PONV, ileus, intestinal obstruction, and respiratory and circulatory system complications. No patients in group L had side effects of lidocaine.