Effect of compound coeruleum methylenum preparation on postoperative analgesia after thoracoscopic surgery

Abstract

Objective To observe the analgesic effect of compound coeruleum methylene blue preparation after thoracoscopic surgery, and to provide a new idea for the choice of analgesic drugs for thoracoscopic patients. Methods The clinical data of 116 patients who underwent selective thoracoscopic surgery in the Department of Cardiothoracic Surgery of Jieyang People′s Hospital from January 2016 to May 2018 were analyzed. This study was a prospective study. Research subjects were divided into control group (n=57) and observation group (n=59) by random digital table. In the two groups, no analgesic measures were used in advance, of which the patients in the control group were given the routine injection of piperidine hydrochloride by intramuscular injection after operation. While patients in the observation group were given intercostal nerve block across the upper and lower ribs after operation, and the dosage of compound methylene blue was 1 ml in each rib. on the basis with pethidine hydrochloride. The visual analog score and Ramsay sedation score were compared between the two groups of patients at 4 h, 12 h 24 h and 48 h after operation and compared the use of pethidine hydrochloride, adverse drug reactions, ambulation time and hospitalization time. The counting data was expressed in terms of frequency and percentage (%). The measurement data were represented by (±s). The comparison of different time points within the group was performed by single-factor analysis of variance, and the comparison between the two groups was performed by independent sample t test. Results Compared with the control group’s patients[in resting state, 12 h: (3.85±1.97) points; 24 h: (2.74±1.91) points; 48 h: (2.11±1.70)points; in activity state, 12 h: (5.02±1.64) points; 24 h: (4.89±1.36)points; 48 h: (3.83±1.51) points], the VAS scores of the patients in the observation group in resting state [12 h: (2.68±1.24) points; 24 h: (1.35±1.16) points; 48 h: (0.74±0.63) points] and activity state[12 h: (3.81±1.53) points; 24 h: (3.25±1.71) points; 48 h: (2.42±1.33)points] were significantly lower at 12 h, 24 h and 48h after operation. Compared with the control group′s patients 12 h [(2.58±0.41) points] and 24 h [(2.29±0.34) points], the Ramsay scores were significantly higher at 12 h[(2.93±0.35)points] and 24 h [(2.79±0.30)points] after operation (P 0.05). Conclusions Compound coeruleum methylenum′s analgesic effect after thoracoscopic surgery is accurate and maintains long time, and the side effects are less and the operation is convenient. It is worthy of clinical application. Key words: Thoracoscopes; Analgesia; Pain, postoperative; Compound methylene blue preparation