Prescription pattern of antimicrobial agents by dental practitioners: a questionnaire based study

Background: The aim of this study was to know the pattern & rationality of antimicrobial prescription by dental practitioners.Methods: It was questionnaire based cross sectional study. A total of 175 questionnaires were distributed to dental practitioners working in a tertiary care Dental College & Hospital and private practitioners in Jaipur (Rajasthan). The questionnaire contained questions about years of practice, diagnosis for which antimicrobial were prescribed, dosage and duration of antimicrobial drugs for prophylaxis, acute and chronic conditions, patient compliance & adverse effects. Data was expressed as counts and percentages.Results: Out of 175 questionnaires distributed, 150 were included in the study. 78% dentists had practices less than 5 years duration. Most common indications for which antimicrobials were prescribed were abscess, cellulitis, irreversible pulpitis, and acute gingivitis. Most common antimicrobials used for prophylaxis were Amoxycillin and Metronidazole. For the treatment of acute and chronic conditions, Amoxycillin, Metronidazole, Ofloxacin and Ornidazole alone or in combination were used. Only 20% dentist advised culture & sensitivity tests. 74% patients completed the recommended course of antimicrobials. 56% patients reported adverse drug reactions (ADRs) with the most common being nausea and vomiting, but only 13% dentists reported them to proper authorities.Conclusions: In this study, Amoxycillin and Metronidazole were the most common drugs used for the management of oral diseases, but were prescribed without culture & sensitivity in most cases. 56% patients reported ADRs, but only 13% dentists reported them to proper authorities. Appropriate measures need to be taken to promote rational prescribing and ADR reporting

To evaluate the effects of dexmedetomidine on intraocular pressure and haemodynamic changes in response to laryngoscopy and tracheal intubation

Background: The most important prerequisites for neurosurgeries are brain relaxation, need of stable haemodynamics with less fluctuation in intracranial pressure and speedy recovery from anaesthesia. Endotracheal intubation is the major stressful stimuli that can elicit a marked pressor response. Various drugs have been used to attenuate these reflexes. Dexmedetomidine, a highly selective alpha 2-adrenoceptor agonist, have neuroprotective, cardioprotective, and sedative effects so it is potentially useful during neuroanaesthesia. This is a prospective randomised control trial carried out to see whether administration of Dexmedetomidine prior to intubation can attenuate the various haemodynamic responses, intraocular pressure (IOP) and the requirement of induction dose of propofol in control and study group. Materials and Methods: Fifty patients (ASA grade 1, 2) scheduled for intracranial tumour surgeries were divided into two groups (25 each). Group D received Dexmedetomidine 0.8 μg/kg i.v. over 10 mins and group C received 20 ml saline. Anaesthesia induced with Propofol, dose adjusted using bispectral index monitor. The groups were compared with IOP, Heart rate (HR), Mean arterial pressure (MAP), and dose of Propofol required for induction. Results: Groups were well matched for their demographic data and pre-operative. IOP in both the eyes decreases significantly after premedication and remained below baseline even after 10th min of intubation in group D while in Group C; it increased significantly after intubation and remained above baseline. The difference between groups was also statistically significant. HR and MAP decreased significantly in patients of group D compared to group C ( P< 0.05). Patients were more haemodynamicaly stable at all time points after premedication in group D ( P< 0.05). Propofol requirements for induction was lesser in group D (P < 0.05). Bradycardia and hypotension incidences were higher in group D. Conclusion: Dexmedetomidine premedication decreases the sympathoadrenal effect on IOP and haemodynamic parameters during laryngoscopy/intubation and decreases the requirement of propofol for induction of general anaesthesia