Anesthesia, essays and researches
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Perioperative fluid management in elderly poses considerable challenge to the anesthesiologist. The conventional crystalloid loading may not be a preferred regime in this subgroup of patients since an exaggerated hemodynamic response is expected due to blunted sympathetic response and compromised cardiorespiratory system. ⋯ Ephedrine 30 mg i.m. given as pretreatment before SAB in elderly patients was more effective for the prevention of post-SAB hypotension.
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The aim of the study was to compare the effect of mannitol (M) and hypertonic saline (HTS) on brain relaxation and electrolyte balance. ⋯ We concluded that HTS provided better brain relaxation than mannitol during elective supratentorial brain tumor surgery, without affecting ICU and hospital stay.
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An estimated 0.75-2% of pregnant women undergo nonobstetric surgery during pregnancy. Surgery is indicated during pregnancy only if it is absolutely essential for wellbeing of mother and fetus. A 25-year-old primigravida with 22 weeks gestation diagnosed with extra hepatic portal venous obstruction, hypersplenism, and refractory pancytopenia was posted for open splenectomy. ⋯ Patient was extubated with an uneventful postoperative course. A fetal ultrasound showed no variation from preprocedure baseline. Optimal anesthetic management requires an understanding into normal alterations in maternal physiology during pregnancy and potential fetal effects from anesthesia and surgery.
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Ketamine was introduced commercially in 1970 with the manufacturer's description as a "rapidly acting, nonbarbiturate general anesthetic" and a suggestion that it would be useful for short procedures. With the help of its old unique pharmacological properties and newly found beneficial clinical properties, ketamine has survived the strong winds of time, and it currently has a wide variety of clinical applications. ⋯ The present article attempts to review the current useful applications of ketamine in anesthesia, pain and critical care. It is based on scientific evidence gathered from textbooks, journals, and electronic databases.
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Vascular pain is a frequent and hypotension is most important complications of propofol administration. ⋯ Rapid propofol injection induced less vascular pain compared with slow injection, but 10 mg ephedrine was not more effective.