Ultrasound-Guided Zygomaticotemporal Nerve Block for Refractory Temporal Headaches: A Case Series.

Landmark-guided zygomaticotemporal nerve blocks are a well-described modality to manage headaches in the temporal region. We report 3 cases in which ultrasound-guided zygomaticotemporal nerve blocks were performed for severe unilateral temporal headaches that failed to respond to standard treatment in the outpatient pain clinic. All the patients reported substantial and durable pain relief with no complications.

Randomized Open-Labelled Comparative Evaluation of the Efficacy of Nitroglycerine, Esmolol and Dexmedetomidine in Producing Controlled Hypotension in Spine Surgeries.

Aim: This study was designed to evaluate the efficacy of nitroglycerine (NTG), esmolol, and dexmedetomidine (DEX) as hypotensive agents in decreasing intraoperative blood loss by producing controlled hypotension in posterior spine surgeries.

Materials And Methods: Sixty patients aged 18-60 years, the American Society of Anesthesiologists physical status Classes I and II of either gender, were randomly assigned into three groups to receive either: NTG (0.01%) at the rate of 3-10 μg.