Background A history of severe nausea and vomiting during pregnancy (SNVP) is a risk factor for postoperative nausea and vomiting (PONV). This study aimed to explore potentially effective treatment strategies and potential genetic factors underlying SNVP risk-related PONV. Methods A total of 140 female patients undergoing breast cancer surgery were assigned to either the study group (70 with SNVP) or the control group (70 with mild to moderate nausea and vomiting during pregnancy (MNVP)). Patients in each group were randomly assigned to two different treatment subgroups and received either ondansetron plus dexamethasone (OD) or OD?+?TEAS (ODT) (transcutaneous electrical acupoint stimulation, TEAS). Blood samples were collected from patients before induction (D0) and 24?h (D1) after surgery for growth differentiation factor 15 (GDF-15) evaluation. The primary outcome was the incidence of PONV within 36?h. The secondary outcome was the serum GDF-15 level. Results The incidence of PONV in the SNVP group was significantly higher than that in the MNVP group within 24?h (P?0.005). In the SNVP group, ODT-treated patients had less PONV than those in the OD-treated group during the 6–12?h (P?=?0.033) and 12–24?h (P?=?0.008) intervals, while within 6?h, there were fewer vomiting cases in the ODT-treated group (SNVP-ODT vs. SNVP-OD, 7/33 vs. 19/35, P?=?0.005). The preoperative GDF-15 serum levels in patients with SNVP were significantly higher (P?=?0.004). Moreover, higher preoperative GDF-15 serum levels correlated with a higher incidence of PONV (P?=?0.043). Conclusions TEAS showed significant effect on PONV treatment in patients with SNVP. A higher serum GDF-15 level was associated with a history of SNVP, as well as a higher risk of PONV.
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