Perioperative pain is caused by a variety of harmful factors through multiple mechanisms, therefore, reasonable postoperative analgesia should be combined with drugs or measures of different mechanism , which is called multimodal analgesia. Multimodal analgesia could minimize side effects and achieve a better analgesic effect. Commonly used strategies of multimodal analgesia are oral analgesic drug, nerve block, patient controlled analgesia and so on. This study will observe the effect of multimodal analgesia on postoperative pain in patients with microvascular decompression and record side effects. Finally, it will provide technical support for the guidance of postoperative analgesia in patients of trigeminal neuralgia.
The investigators will collect 90 cases which will be divided into 3 groups. Patients in Group A will receive scalp nerve block and patient-controlled analgesia which contains sufentanil and ondansetron. In Group B, patient-controlled analgesia which contains sufentanil, ondansetron and ketamine will be applied. In Group C, patient-controlled analgesia which contains sufentanil and ondansetron will be applied.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
90
Ketamine will be applied in patient-controlled analgesia.
Scalp nerve block is performed for the blockade of the greater occipital, superficial cervical and lesser occipital nerves with 0.5% ropivacaine.
Ondansetron(13ug/kg/h) is applied in patient-controlled analgesia.
Sufentanil(0.02ug/kg/h) is applied in patient-controlled analgesia.
Xiangya Hospital of Central South University
Changsha, Hunan, China
visual analog scale score
Time frame: 6 hour after operation
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