The relationship between spinal anesthesia and hearing loss is not well understood, but is thought to be due to leakages of cerebrospinal fluid, which may or may not induce postural puncture headache. Previous studies have reported no risk of hearing loss in patients under 40 or the obstetric population. We present a case of a young woman who experienced severe sudden unilateral hearing loss af...

Melatonin has been suggested as a new natural pain killer in inflammatory pain and during surgical procedures. We designed this randomized double-blind controlled study to evaluate the analgesic efficacy and also optimal preemptive dose of melatonin in patients undergoing cesarean section under spinal anesthesia.One hundred twenty patients scheduled for cesarean section under spinal anesthesia ...

Objective(s): Propofol (2, 6-diisopropylphenol) is an intravenous anesthetic that is commonly used for the general anesthesia. It is well known that the spinal cord is one of the working targets of general anesthesia including propofol. However, there is a lack of investigation of the effects of propofol on spinal dorsal horn which is important for the sensory transmission of nociceptive signal...

Post spinal puncture headache (PSPH) is a well known complication of spinal anesthesia. It occurs after spinal anesthesia induction due to dural and arachnoid puncture and has a significant effect on the patient’s postoperative well being. This manuscript is based on an observational study that runs on Babol University of Medical Sciences and review of literatures about current concepts about t...

PHYSIOLOGY OF SPINAL ANESTHESIA, 2nd Ed. By Nicholas M. Greene. Baltimore, Md., Williams and Wilkins Co., 1969. 243 pp. $9.75. The first edition of The Physiology of Spinal Anesthesia appeared in 1958. Its avowed purpose was to review and evaluate the literature "dealing with the physiological response to spinal anesthesia." While interest in spinal anesthesia has steadily waned during the inte...

Reportedly, during spinal anesthesia, the shivering threshold is reduced approximately 1 degree C but the vasoconstriction threshold remains normal. Such divergence between the shivering and vasoconstriction thresholds is an unusual pattern of thermoregulatory impairment and suggests that the mechanisms of impairment during regional anesthesia may be especially complex. Accordingly, we sought t...

SPINAL anesthesia has enjoyed a long history of success and recently celebrated a centennial anniversary. Anesthesiologists master spinal anesthesia early during training with achievement of competence (. 90% technical success rate) after only 40–70 supervised attempts. The ease and long history of spinal anesthesia may give the impression that it is a simple technique with little sophisticatio...

The recent widespread popularity of spinal anesthesia can be traced to two events. One is the appreciation that, when used for operations below the level of the umbilicus, anesthetically induced physiologic trespass is less with spinal than with general anesthesia. The other is the recognition that modest hypotension with peripheral vasodilation, that may be seen with spinal anesthesia or intra...