Multicenter clinical evaluation of a multi-dose formulation of propofol in the dog

Effects of Cisatracurium in Sevoflurane and Propofol Requirements in Dog-Undergoing-Mastectomy Surgery

The purpose of the present study was to test whether the addition of cisatracurium in combination with propofol and sevoflurane would result in a change in doses of used anesthetic drugs. Ten dogs (Group A) undergoing elective unilateral mastectomy surgery were included in the study. To induce and maintain anesthesia, subjects received propofol and sevoflurane at varying doses; analgesia was performed with remifentanil. After three months, the same subjects (Group B) underwent contralateral mastectomy and received the same anesthetic protocol with the addition of cisatracurium at a dosage of 0.2 mg/kg−1. The following parameters were monitored during anesthesia: heart rate, systolic blood pressure, end-tidal CO2, oxygen saturation, halogenate requirement, and rectal temperature at baseline (T0), induction (T1), 5 (T5), 10 (T10), 15 (T15), 20 (T20), 25 (T25), 30 (T30), and 35 (T35) time points. In Group A, halogenate requirement was reduced at all the time points other than T1 (p < 0.001); in Group B, the percentage of halogenate requirement was already reduced at T1 and remained constant during the experimental period, showing no significant intragroup differences. The dose requirements of sevoflurane and propofol varied significantly between the two groups, with significantly lower dosages in the Group B (the cisatracurium-treated group). Moreover, patients treated with cisatracurium showed a stable anesthetic plan. The nondepolarizing-muscle-relaxant cisatracurium besylate could be considered a useful adjunct to anesthetic protocols.

Effects of propofol with midazolam verus lidocaine during gastroscopy in elderly patients

AIM: To compare the effects of propofol with midazolam versus lidocaine during endoscopy in elderly patients.

METHODS: Ninety-seven ASA-Ⅱ class patients were used as an experimental group. They were treated with propofol with midazolam for painless gastroscopy between July 2008 and July 2013 at our hospital. Eighty-two ASA-Ⅱ level patients who used traditional lidocaine gel pulp in painless gastroscopy were used as a control group. Age, weight, baseline blood pressure between two groups had no significant differences (P > 0.05 for all). Professional medical personnel recorded the changes in blood pressure, heart rate, oxygen saturation and adverse reactions in the examination process.

RESULTS: After the painless gastroscopy procedure, blood pressure and heart rate in the experimental group were significantly lower than those in the control group (blood pressure: 90.2 mmHg ± 2.5 mmHg vs 131.2 mmHg ± 3.4 mmHg; heart rate: 70.2 ± 1.5 vs 85.0 ± 6.4, P < 0.05). During the examination process, blood pressure and heart rate dropped initially and then rose to a stable level in the experimental group, while in the control group, blood pressure and heart rate initially increased and then decreased to a stable level. The differences were statistically significant (P < 0.05) within the two groups. Oxygen saturation between groups and within groups showed no significant differences (P > 0.05). Compared with the control group, adverse reactions in the experimental group were significantly reduced (χ² = 12.991, 142.482, 55.838, 179.000, P < 0.05). Times to wake up from anesthesia and drug elimination were relatively short in the experimental group (1.51 s ± 0.17 s, 8.21 s ± 2.32 s).

CONCLUSION: Propofol combined with midazolam in painless gastroscopy can effectively reduce the risk of cardiovascular diseases in patients and is associated with shorter times to wake up and drug elimination.