Continuous Femoral Nerve Block versus Intravenous Patient Controlled Analgesia for Knee Mobility and Long-Term Pain in Patients Receiving Total Knee Replacement: A Randomized Controlled Trial
Table 2
Preoperative comorbidity of enrolled participants.
Preoperative comorbidity△
CFNB group
PCIA group
value
(%)
(%)
Cardiovascular system
Hypertension
41/140 (34.2)
29/140 (24.2)
0.098
Coronary artery disease
7/140 (5.8)
7/140 (5.8)
1.000
Arrhythmia
Atrial fibrillation
1/140 (0.8)
1/140 (0.8)
1.000*
Ventricular premature
0/140 (0)
3/140 (2.5)
0.247*
Sinus bradycardia
0/140 (0)
2/140 (1.7)
0.498*
Respiratory system
Asthma
2/140 (1.7)
0/140 (0)
0.498*
COPD
4/140 (3.3)
8/140 (5.7)
0.238
Respiratory failure
1/140 (0.8)
1/140 (0.8)
1.000*
Urological system
Renal syndrome
0/140 (0)
1/140 (0.8)
0.500*
Renal failure
0/140 (0)
1/140 (0.8)
0.500*
Endocrine system and autoimmune disease
Diabetes
18/140 (15)
9/140 (7.5)
0.068
Rheumatoid arthritis
0/140 (0)
3/140 (2.1)
0.247*
Thromboembolic events
Cerebral embolism
2/140 (1.7)
0/140 (0)
0.498*
Myocardial infraction
0/140 (0)
0/140 (0)
Venous thrombosis
0/140 (0)
2/140 (1.7)
0.498*
Peripheral artery embolism
0/140 (0)
0/140 (0)
Categorical variables as number of events (), Chi square test was used; events less than 5 were compared with Fisher’s exact test, .