Research Article
Different Concentrations of Ropivacaine under Ultrasound Guidance on Quadratus Lumbar Muscle Nerve Block in Elderly Patients with Hip Replacement
Table 3
Effects of different concentrations of ropivacaine on patients’ heart rate and blood pressure before and after surgical intervention.
| Index | Time | Control group | Observation group | | |
| Heart rate (times/min) | Before anesthesia | | | 0.01 | 0.963 | | 3 min after anesthesia | | | 3.66 | 0.001 | | 10 min after anesthesia | | | 5.55 | 0.002 | | 30 min after anesthesia | | | 3.1 | 0.014 | | After surgery | | | 5.06 | 0.003 | Mean blood pressure (mmHg) | Before anesthesia | | | 0.11 | 0.974 | | 3 min after anesthesia | | | 1.29 | 0.846 | | 10 min after anesthesia | | | 5.26 | 0.001 | | 30 min after anesthesia | | | 3.76 | <0.01 | | After surgery | | | 5.21 | 0.003 |
|
|