Comparison of Dexamethasone Alone vs in Combination With Pericardium 6 (P6) Electrical Stimulation or Granisetron in the Prevention of Postoperative Nausea and Vomiting in Patients Undergoing Breast Cancer Surgery (P6 and PONV)
Mammary Cancer, PONV
About this trial
This is an interventional prevention trial for Mammary Cancer focused on measuring Mammary Cancer, PONV, electric stimulation therapy, antiemetics
Eligibility Criteria
Inclusion Criteria:
- women undergoing breast cancer resection under general anesthesia
- aged between 18 to 65
- American Society of Anesthesiologists grade I-II
Exclusion Criteria:
- using antiemetic drugs within 24 h before operation,
- nausea or vomiting within 24 h before operation;
- Alcoholic or drug abuse,
- abnormal liver and/or kidney function, diabetic or peripheral neuropathy patients, cardiovascular disease (excluding those with controlled hypertension).
- refuse to participate clinical trial
Sites / Locations
- Fudan University Shanghai Cancer Center
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Sham Comparator
Sham Comparator
Group Acu
Group Gra
Group Dxm
a surface electrode was applied in the induction room to the P6 acupoint on the dominant upper extremity, located ∼4 cm proximal to the distal wrist crease between the tendons of the flexor carpi radialis and the palmaris longus, and a negative surface electrode on the opposing dorsal aspect of the forearm. When the patient enters the operating room, an investigator connected the device to both electrodes with electrical wires, set initial electric stimulating current at 1 mA with the frequency at 2 Hz(square-wave pulses of 0.2 ms), gradually increased the current intensity until the patient felt pain or reached the discomfort threshold (ranging from 6 to 20 mA), and maintained the stimulation until end of operation. At the start of skin closure, saline (3 ml) was administered i.v.
Group Gra receive the same protocol but silicone covers were attached to both electrodesin to achieve an inert control. At the start of skin closure, granisetron (3 mg; Group Trp) was administered i.v.
Group Dxm receive the same protocol but silicone covers were attached to both electrodesin to achieve an inert control. At the start of skin closure, saline (3 ml) was administered i.v.