Acta anaesthesiologica Scandinavica
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Acta Anaesthesiol Scand · Aug 2003
Influence of the cortical electrical activity level during general anaesthesia on the severity of immediate postoperative pain in the morbidly obese.
The objective of anaesthesia is to provide hypnosis, analgesia and adequate conditions during surgery. It is difficult to establish the appropriate dose of general anaesthetic drugs in the morbidly obese patient. Moreover, there are conflicting data concerning adequate anaesthesia levels and the severity of postoperative pain. The aim of this study was to investigate the relationship between the spectral edge frequency (SEF) during general anaesthesia and the severity of immediate postoperative pain following gastric banding surgery in morbidly obese patients. ⋯ Keeping the SEF range between 8 and 12 Hz during anaesthesia for laparoscopic gastric banding for morbid obesity, both the immediate post operative pain intensity and morphine requirement, are significantly reduced.
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Acta Anaesthesiol Scand · Aug 2003
Anesthesia-related mortality and morbidity over a 5-year period in 2,363,038 patients in Japan.
Statistical data of mortality and morbidity related to anesthesia have not been reported in Japan since World War II. The need to comprehensively examine the events of cardiac arrest as well as mortality prompted the first national study in Japan. ⋯ The rates in Japan of cardiac arrest and death during anesthesia and surgery due to all etiologies as well as those totally attributable to anesthesia are comparable to those of other developed countries.
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Acta Anaesthesiol Scand · Aug 2003
Case ReportsCardiac arrest after interscalene brachial plexus block with ropivacaine and lidocaine.
Serious adverse reactions to ropivacaine and lidocaine are rare. In this report, we describe a case of sudden cardiac arrest after an interscalene brachial plexus block with a mixture of 150 mg of ropivacaine and 360 mg of lidocaine in a previously healthy, 34-year-old, 97-kg man. ⋯ He eventually made a good recovery. We conclude that although ropivacaine and lidocaine are often considered relatively safe local anesthetics, serious cardiovascular complications can occur after the use of these drugs.
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Acta Anaesthesiol Scand · Aug 2003
Randomized Controlled Trial Clinical TrialAbsence of explicit and implicit memory in unconscious patients using a TCI of propofol.
Episodes of implicit memory have been described during propofol anaesthesia. It remains unclear whether implicit memory is caused by short periods of awareness or occurs in an unconscious subject. ⋯ In our group of young ASA I/II patients, in the absence of any noxious stimulus, no implicit or explicit memory was found when the calculated concentration of propofol using a Diprifusor was maintained at the level associated with LOC.