Laryngoscopy and intubation have been associated with increased sympathetic responses such as hypertension, tachycardia, arrhythmias, and myocardial infarction. This response is usually transient and variable but might be life threatening in cardiovascular and cerebrovascular compromised patients. So controlling this response is utmost goal of anaesthesia. We evaluated the effectiveness of dexemedetomidine/clonidine to attenuate pressor response.Evaluation of efficacy of addition of Dexemedetomidine/ clonidine to fentanyl in attenuation of pressor response of laryngoscopy and intubation.96 patients were enrolled and randomly divided in three groups having 32 patients each. Group NS received 10 ml normal saline, Group CL received 2mcg/kg Inj. Clonidine and Group DE received 1mcg/kg Inj. Dexemedetomidine infusion over 10 min before laryngoscopy. Heart rate, systolic blood pressure, diastolic blood pressure and mean arterial pressure were studied immediately after premedication, 10 min after study drug infusion and then at 1, 2,3,4,5 and 10 min intervals. : There was significant fall in mean HR and mean MAP after 10 min of study drug infusion. Clonidine and dexemedetomidine groups had significantly less rise in heart rate and mean arterial pressure after intubation and then at 1,2,3,4,5 and 10 min time intervals compared to placebo group. No significant side effects were observed.: Use of dexemedetomidine 10 min before laryngoscopy was associated with significantly less rise in pressor response compared to placebo group. Dexemedetomidine better attenuates the pressor response compared to clonidine but the difference was statistically insignificant.
Introduction: Tracheoesophageal fistula (TEF) is one of the common congenital anomalies presented at birth. Management of TEF is a challenging task as outcome of these cases not only depends on surgeon and anaesthesiologist's skills but also depends on various factors associated with new born. This prospective study evaluates the association of various factors on survival of TEF patients. Materials and Methods: 16 newborn patients in a calendar year were enrolled in this prospective study and impact of various factors like age, weight, parity of mother, associated congenital anomalies and family history, mode of delivery, place of delivery, associated hydramnios and type of TEF were evaluated on the survival of neonates born with TEF. Results: Male, female ratio was equal. Patient with birth weight >2.5 kg had higher survival rate (100%) compared to patient <2.5kg weight (23.08%). No other factors significantly influence the survival rate of neonates with TEF. Conclusion: Birth weight remains the single most important predictor of mortality among TEF patients, as suggested with Waterston risk classification.
Introduction: To avoid adverse effects of general anaesthesia, regional anaesthesia (RA) techniques are increasingly being practiced in children for different surgeries. These RA techniques are often combined with moderate degree of sedation to remain child calm and immobile. With limited literature available, we planned a prospective study to evaluate the effectiveness of dexemedetomidine as an intraoperative sedative agent with RA considering its short term sedation and least respiratory depression property. Materials and Methods: Fifty children of 1-8 year of age, ASA grade 1&2 undergoing below umbilical surgery under RA (caudal epidural anaesthesia) were selected and studied. After giving Inj. Ketamine (1mg/kg) intravenously, RA was performed with Inj. Bupivacaine. Then inj. Dexemedetomidine (1mcg/kg) IV was administered as bolus over 10 min followed by continuous infusion (0.4 mcg/kg/hr) till completion of surgery. Perioperative sedation score, vital parameters, peripheral oxygen saturation, respiratory rate and surgeon's satisfaction were observed. The Study was considered complete till stay of patient in PACU for 2hrs. Recovery time and any complications were noted. Results: The quality of sedation and surgeon's satisfaction were good in all children except three children who needed extra dose of sedative. The only adverse effects reported were bradycardia and hypotension in 3 patients which were well managed by reducing the infusion rate.
Conclusion:Dexemedetomidine offers an adequate level of sedation in most of the children without haemodynamic or respiratory side effects when used intraoperatively with RA.
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