Anaesthetic induction and recovery characteristics of a diazepam-ketamine combination compared with propofol in dogs

Induction of anaesthesia occasionally has been associated with undesirable behaviour in dogs. High quality of induction of anaesthesia with propofol has been well described while in contrast variable induction and recovery quality has been associated with diazepam-ketamine. In this study, anaesthetic induction and recovery characteristics of diazepam-ketamine combination with propofol alone were compared in dogs undergoing elective orchidectomy. Thirty-six healthy adult male dogs were used. After habitus scoring (simple descriptive scale [SDS]), the dogs were sedated with morphine and acepromazine. Forty minutes later a premedication score (SDS) was allocated and general anaesthesia was induced using a combination of diazepam-ketamine (Group D/K) or propofol (Group P) and maintained with isoflurane. Scores for the quality of induction, intubation and degree of myoclonus were allocated (SDS). Orchidectomy was performed after which recovery from anaesthesia was scored (SDS) and times to extubation and standing were recorded. Data were analysed using descriptive statistics and Kappa Reliability and Kendall Tau B tests. Both groups were associated with acceptable quality of induction and recovery from anaesthesia. Group P, however, was associated with a poorer quality of induction (p = 0.014), prolonged induction period (p = 0.0018) and more pronounced myoclonus (p = 0.003), but had better quality of recovery (p = 0.000002) and shorter recovery times (p = 0.035) compared with Group D/K. Diazepam-ketamine and propofol are associated with acceptable induction and recovery from anaesthesia. Propofol had inferior anaesthetic induction characteristics, but superior and quicker recovery from anaesthesia compared with diazepam-ketamine.

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Comparative study of hemodynamic effects, quality of extubation and emergence - agitation response of the patients with dexmedetomidine versus lignocaine during and following the endotracheal extubation

MedPulse International Journal of Anesthesology ◽

10.26611/10151939 ◽

2021 ◽

Vol 19 (3) ◽

pp. 91-95

Author(s):

Manasi Panat ◽

Keyword(s):

Comparative Study ◽

Stress Responses ◽

Tracheal Extubation ◽

Emergence Agitation ◽

Quality Of Recovery ◽

Group 12 ◽

The Difference ◽

Group D ◽

Endotracheal Extubation

Background: Endotracheal extubation is the translaryngeal removal of a tube from the trachea via the nose or mouth. It is associated with hemodynamic changes because of reflex sympathetic discharge caused by epipharyngeal and laryngopharyngeal stimulation. Various drugs and techniques have been tried to attenuate the airway and stress responses during tracheal extubation. In present study, we have compared the effects of dexmedetomidine and intravenous lignocaine on the hemodynamic and recovery profiles during endotracheal extubation. Material and Methods: Present study was prospective randomised comparative study, conducted in patients from age group of 18-45 years, ASA grade I/II, scheduled for elective abdominal surgeries. The patients were categorised into two different groups using the sealed envelope method as Group D and group L. Results: In present study, patients were divided in following 2 groups with 50 patients in each group as group D (Dexmedetomidine) and group L (Lignocaine). Age, gender, mean BMI were comparable in both groups and difference was not significant statistically. The difference between mean heart rate, systolic BP, diastolic BP and mean arterial BP during extubation, after extubation at 1, 3, 5, 10, 15, 20, 25, 30 minutes in dexmedetomidine group and lignocaine group was statistically significant. In Dexmedetomidine group, 12% of the patients had no cough during extubation, 72% of the patients had smooth extubation with minimal cough while in Lignocaine group, 22% of the patients had smooth extubation with minimal cough, 74 % of the patients had moderate cough during extubation. Statistical analysis of the Emergence agitation score shows better results in group D. Conclusion: Administration of Dexmedetomidine before tracheal extubation was more effective in maintaining the hemodynamic stability, facilitated smooth tracheal extubation and had a better quality of recovery as compared to Lignocaine.

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Efficacy and Safety of Remimazolam Besylate Versus Propofol during Hysteroscopy: Single‐centre Randomized Controlled Trial

10.21203/rs.3.rs-209379/v1 ◽

2021 ◽

Author(s):

Xiaoqiang Zhang ◽

Shuang Li ◽

Jing Liu

Keyword(s):

Adverse Events ◽

Controlled Trial ◽

Body Movement ◽

Incidence Rates ◽

Injection Pain ◽

Efficacy And Safety ◽

Quality Of Recovery ◽

Recovery Times ◽

New Type

Abstract Background: Remimazolam besylate is a new type of benzodiazepine that has the characteristics of quick effects, short maintenance and recovery times, and no accumulation. Compound opioids can have a sedative effect in some endoscopic examinations. This trial was conducted to confirm the efficacy and safety of remimazolam besylate versus propofol during hysteroscopy.Methods: Patients undergoing hysteroscopy were randomly assigned to either the remimazolam (Group R, n=41) or the propofol group (Group P, n=41). Group R was administered an induction dosage of 0.2 mg/kg/min and a maintenance dosage of 1 mg/kg/h. Group P was started at 1.5-2.0 mg/kg propofol for up to 60-100 s and then maintained at 3.0-6.0 mg/kg/h. In both groups, remifentanil was infused using a target-controlled infusion system with a target concentration of 1.5 ng/ml and titrated during the procedure. The incidence rates of body movement and various adverse events in both groups were compared.Results: Eighty-two patients were included in this study. The incidence of adverse events in Group R (8.5%) was significantly lower than that in Group P (36.6%) (P < 0.05). Injection pain, postoperative dizziness and low SpO2 were the most common adverse events (P < 0.05). Compared with Group P patients, Group R patients recovered faster, had a shorter residence time in the PACU, and exhibited a higher quality of recovery (P < 0.05).Conclusion: Remimazolam besylate can provide safe and effective sedation for hysteroscopy. The depth of sedation is sufficient and effective, and the quality of recovery is high. Moreover, adverse events such as haemodynamic fluctuation, excessive sedation depth, low SpO2 and injection pain caused by propofol are largely avoided.Trial registrationThis study was approved by the Clinical Research Ethics Committee of Mengcheng County No.1 People's Hospital (2020MYL20003) and registered at http:// www.chictr.org.cn (15/09/2020, ChiCTR-2000038252). The study protocol is performed in the relevant guidelines.

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