Anesthesia, essays and researches
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Various adjuvants have been introduced to decrease the dose of volatile agents and their side effects. Dexmedetomidine a potent alpha-2 adrenoreceptor agonist is one such agent. Our objective is to assess the effect of preanesthetic dexmedetomidine on isoflurane consumption and its effect on intraoperative hemodynamic stability and recovery profile. ⋯ Preanesthetic bolus dose of dexmedetomidine is a useful adjuvant to reduce isoflurane consumption.
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Catheter-related bladder discomfort (CRBD) is the most distressing symptom in patients due to intraoperative urinary catheterization. Amikacin significantly inhibits detrusor contraction evoked by prejunctional stimulation. ⋯ Amikacin can significantly reduce the incidence and severity of CRBD in the first few hours after surgery.
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Cooling of local anesthetic potentiates its action and increases its duration. Magnesium sulfate (MgSo4) added to local anesthetic prolongs the duration of anesthesia and postoperative analgesia with minimal side effects. ⋯ The use of cold 0.5% bupivacaine or the addition of Mg to normal temperature 0.5% bupivacaine prolongs the sensory and motor block duration without increasing side effects and enhances the quality of intra- and post-operative analgesia with better patient satisfaction in sonar-guided femoral and sciatic nerve block for arthroscopic ACL reconstruction surgery.
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To study the efficacy and safety of intrathecal neostigmine at dose of 50 μg and 150 μg as an adjuvant to bupivacaine for postoperative analgesia under spinal anesthesia. ⋯ The administration of intrathecal neostigmine in dose of 50 μg as an adjuvant to bupivacaine produces hemodynamically stable analgesia with minimal side effects.
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Fiberoptic intubation is a technique commonly used for difficult airways. Conscious sedation is desirable to make this procedure tolerable, and it is essential that patients are cooperative, relaxed, and comfortable especially when difficult airway anatomy or pathology is encountered. ⋯ We conclude that compared with midazolam, propofol provides better sedation for fiberoptic endotracheal intubation and better patient comfort and satisfaction.