[Complications of local anesthesia and their management].
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A 58-year-old man underwent surgery for an inguinal hernia. Surgery was performed under epidural anaesthesia. The patient afterwards developed increasing low back pain. Magnetic resonance imaging showed an epidural abscess, which was drained by laminectomy. The patient recovered without neurological sequelae.
Eight cases of vesico-sphincteric disorders (dysuria and chronic retention of urine) observed after spinal anaesthesia are reported. These symptomatic disorders were caused by a peridural haematoma in 3 cases and by lack of bladder contraction due to an "exhausted detrusor muscle" in 5 cases. The mechanism of the disorders (predominant vesical hypoactivity with sensory disorders) is discussed. The usefulness of urodynamic investigation in determining the physiopathological mechanism(s) and that of electrophysiological exploration in the search for a neurogenic disease is emphasized, as is the need for a preventing treatment (intermittent catheterization) in case of forced bladder detected by systematic recording of postoperative micturitions.
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Although bacterial meningitis is a rare sequela of spinal anaesthesia, occasional case reports continue to appear in anaesthesiological literature. The article presents nine cases of iatrogenic meningitis reported to the treatment injury claims authority. Eight of these patients had undergone spinal anaesthesia, and one myelography. Alpha-haemolytic streptococci were isolated in cerebrospinal fluid culture in seven cases, the remaining two cases being culture-negative. Although alpha-haemolytic streptococci are normal commensals of the upper respiratory tract and mouth and rarely cause spontaneous meningitis, they have been implicated in several reported cases of iatrogenic meningitis. The risk of such infection raises the issue of the widespread habit of omitting face masks when performing dural puncture. As these bacteria are not known to cause infection in general surgery, the necessity of using face masks in the operating theatre has been questioned. However, the use of face masks has been shown to reduce the risk of bacterial contamination from the upper airway; and as available documentation on iatrogenic meningitis suggests oral commensals to be responsible, the use of face masks should be mandatory whenever any kind of lumbar puncture is performed.
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In a prospective, randomised double blind study we recorded the rate of complications in dental anesthesia in more than 1500 patients using 4 commonly known anesthetic solutions. 228 of our patients (18.3%) noted headaches postoperatively. Furtheron we found syncopes, failures of anesthesia and nausea. Double vision was noticed once intraoperatively (Articain) and postoperatively (Lidocain). We found a high standard of security in dental local anaesthesia.
A rare complication of general anesthesia, malignant hyperthermia is nonetheless very topical because it causes the death of young, healthy subjects who most often undergo surgery with no vital risk. Screening, an essential means of achieving riskless anesthesia, is based on testing on fresh biopsy specimens of muscle. The current state of knowledge, especially the progress made in genetics, will be commented.
IMPLICATIONS: We report a case of mutism secondary to total IV anesthesia with propofol, as an unusual complication that we have not found in the literature.