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Biomedical subjects

M Helliwell

Publications and source records attributed to M Helliwell.

48 records · Page 3Linked to original sources

Hemoperfusion in "late" paracetamol poisoning.

Seven patients who presented to hospital later than 10 h following an overdose of paracetamol were treated by charcoal hemoperfusion. In all cases there was a rapid fall in the plasma paracetamol concentrations, although the total amounts of drug removed varied from 364.5 to 6699 mg. One patient developed fulminant hepatic failure and died; the remainder recovered, sustaining only mild hepatic damage (maximum AST less than 1000 IU/L). Charcoal hemoperfusion may be effective in mitigating the severity of liver injury in those patients who are not eligible to receive specific antidotal therapy.

Acetaminophen↗

Successful management of serious disopyramide poisoning.

A case of deliberate disopyramide overdosage is described. Circulatory collapse was treated by means of a large dose of isoprenaline, and charcoal haemoperfusion was used in an attempt to enhance the elimination of disopyramide. The suitability of this treatment regime is discussed in the light of findings from animal studies and the implications for the management of the disopyramide-poisoned patient are considered.

Adult↗

Severe barbiturate and paracetamol overdose: the simultaneous removal of both poisons by haemoperfusion.

Charcoal haemoperfusion was successful in the treatment of severe butobarbitone poisoning complicated by resistant hypotension. At the same time the rapid removal of paracetamol may have lessened the severity of the subsequent hepatic injury. The mechanism and management of shock associated with barbiturate poisoning, and the possible application of haemoperfusion in paracetamol poisoning are discussed.

Acetaminophen↗

Value of emergency toxicological investigations in differential diagnosis of coma.

Out of 208 cases of coma of unknown aetiology referred to the poisons unit of this hospital during 1978 for emergency toxicological investigations, 108 were found to be due to self-poisoning medical conditions, mainly neurological, accounted for coma in 90 patients; the cause was not ascertained in the remaining 10 cases. More than one preparation had been ingested by 58 (54%) of the poisoned patients, although barbiturates were the drugs most commonly encountered in the severe cases. Toxicological investigations should be considered in the differential diagnosis of coma when history, physical examination, and emergency biochemical measurements yield little diagnostic information.

Acute Disease↗