1/9. cauda equina syndrome after spinal anaesthesia with hyperbaric 5% lignocaine: a review of six cases of cauda equina syndrome reported to the Swedish Pharmaceutical insurance 1993-1997.Six cases of cauda equina syndrome with varying severity were reported to the Swedish Pharmaceutical insurance during the period 1993-1997. All were associated with spinal anaesthesia using hyperbaric 5% lignocaine. Five cases had single-shot spinal anaesthesia and one had a repeat spinal anaesthetic due to inadequate block. The dose of hyperbaric 5% lignocaine administered ranged from 60 to 120 mg. Three of the cases were most likely caused by direct neurotoxicity of hyperbaric 5% lignocaine. In the other 3 cases, direct neurotoxicity was also probable, but unfortunately radiological investigations were not done to definitely exclude a compressive aetiology. All cases sustained permanent neurological deficits. We recommend that hyperbaric lignocaine should be administered in concentrations not greater than 2% and at a total dose preferably not exceeding 60 mg.- - - - - - - - - - ranking = 1keywords = anaesthesia (Clic here for more details about this article) |
2/9. Neurological deficit following spinal anaesthesia: MRI and CT evidence of spinal cord gas embolism.A 62-year-old diabetic woman developed permanent neurological deficits in the legs following spinal anaesthesia. MRI showed oedema in the spinal cord and a small intramedullary focus of signal void at the T10 level, with negative density at CT. Intramedullary gas bubbles have not been reported previously among the possible neurological complications of spinal anaesthesia; a combined ischaemic/embolic mechanism is hypothesised.- - - - - - - - - - ranking = 1keywords = anaesthesia (Clic here for more details about this article) |
3/9. diagnosis of acromegaly in orofacial pain: two case reports.acromegaly is an uncommon condition, with an annual incidence in the UK of three per million. The gradual onset of the clinical features mean that often friends and relatives are unaware of the underlying pathology. In view of the morbidity, and indeed mortality, arising from undiagnosed cases, general dental practitioners and other healthcare workers should routinely take note of systemic as well as intra-oral changes occurring in their patients when seen on review. The association of paraesthesia, anaesthesia and pain with acromegaly is well documented. However, there appear to be few reports linking acromegaly with orofacial pain or dysaesthesia. This paper describes two such cases.- - - - - - - - - - ranking = 0.16666666666667keywords = anaesthesia (Clic here for more details about this article) |
4/9. Accidental total spinal block: a complication of an epidural test dose.A case is presented of a 36-yr-old parturient who developed a total spinal block after an epidural test dose. After placement of an epidural catheter and confirming negative aspiration for blood or CSF, 3 ml lidocaine 1.5% (45 mg), with 1:200,000 epinephrine (15 micrograms) was injected via the catheter over 30 sec. Within two minutes the patient developed hypotension and extensive sensory and motor block including respiratory paralysis and aphonia. She remained fully conscious and alert and spontaneous respiration recommenced in five minutes. A live healthy infant was delivered by emergency Caesarean section shortly afterwards under general anaesthesia and the mother recovered completely without any untoward sequelae.- - - - - - - - - - ranking = 0.16666666666667keywords = anaesthesia (Clic here for more details about this article) |
5/9. urinary retention, erectile dysfunction and penile anaesthesia after circumcision: a mixed dissociative (conversion) disorder.We report on the long-term followup of a mixed dissociative (conversion) disorder after circumcision in childhood.- - - - - - - - - - ranking = 0.66666666666667keywords = anaesthesia (Clic here for more details about this article) |
6/9. Spinal subdural bleeding after attempted epidural and subsequent spinal anaesthesia in a patient on thromboprophylaxis with low molecular weight heparin.Despite the extensive use of low molecular weight heparins (LMWH) for thromboprophylaxis, only two serious complications have thus far been reported where spinal haematomas were incurred after epidural and spinal blocks in patients on such treatment. In our patient, who was on thromboprophylaxis with the LMWH drug enoxaparin, catheter epidural anaesthesia was abandoned due to a bloody tap and superseded by spinal anaesthesia. More than 40 hours later she had developed a paraparesis and complete sensory loss in the lower extremities. The MRT image showed haematomas epi- and subdurally, as well as subarachnoidally, but no epidural bleeding was seen at laminectomy.- - - - - - - - - - ranking = 1keywords = anaesthesia (Clic here for more details about this article) |
7/9. Mental nerve dysfunction: a symptom of diverse mandibular disease.Paraesthesia and anaesthesia of the mental nerve may result from a variety of pathological conditions, and in persistent cases of orofacial sensory disturbance thorough clinical assessment, including CT scanning, is vital to exclude underlying systemic or neoplastic disease. This paper presents three patients with right mental nerve dysfunction, and reviews the aetiology of mental nerve paraesthesia and anaesthesia.- - - - - - - - - - ranking = 0.33333333333333keywords = anaesthesia (Clic here for more details about this article) |
8/9. Response to atracurium and mivacurium in a patient with charcot-marie-tooth disease.PURPOSE: We studied the neuromuscular effects of both atracurium and mivacurium in a patient with charcot-marie-tooth disease (CMTD) during nitrous oxide-oxygen-alfentanil-propofol anaesthesia. neuromuscular blockade was monitored electromyographically. Train-of-four stimulation (2 Hz @ 20 sec intervals) was delivered to the ulnar nerve throughout the period of observation. CLINICAL FEATURES: A 17-yr-old man with the diagnosis of CMTD was presented twice for two different orthopaedic surgical procedures. The CMTD had been diagnosed since childhood. Neurological examination revealed distal wasting of the upper and lower limbs, generalised absence of reflexes and decreased sensation in a stocking distribution. In both anaesthetics, induction was carried out with alfentanil and propofol, and anaesthesia was maintained with nitrous oxide in oxygen, alfentanil and propofol infusion. The patient demonstrated a normal response to both atracurium and mivacurium. Onset time and the maximum block attained after atracurium and mivacurium were 240 and 210 sec, and 97% and 99% inhibition of T1 (the first twitch of TOF stimulation), respectively. Recovery of T1 to 10% of the control value occurred 30 and 11.5 min after the administration of atracurium and mivacurium, respectively. The patient made uneventful recoveries after both anaesthetics. CONCLUSION: There was no evidence of prolonged response to atracurium and mivacurium in our patient with CMTD.- - - - - - - - - - ranking = 0.33333333333333keywords = anaesthesia (Clic here for more details about this article) |
9/9. Differentiation of conversive sensory loss and malingering by P300 in a modified oddball task.We applied the methodology of evoked potentials (EP) to reveal the functional level of abnormality in a patient with circumscribed complete anaesthesia due to conversion disorder. EP components related to sensory and perceptual processing of both innocuous electrical and noxious laser stimuli were normal. However, a P300 component indicating cognitive processing failed to appear when using a modified oddball task with rare stimuli applied to the anaesthetic right hand. P300 was present with this paradigm stimulating the healthy left hand, as well as in a 'malingerer' - a healthy subject who was instructed to feign the same deficit. These results suggest cognitive deficits underlying sensory loss as conversion symptom which can be differentiated from malingering by use of P300.- - - - - - - - - - ranking = 0.16666666666667keywords = anaesthesia (Clic here for more details about this article) |