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PubMed · 7116050

Electro-convulsive therapy with minimum hazard.

D Gordon
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Abstract

The inter-electrode resistance during ECT is shown to be very variable, a finding which invalidates the measurement of shocks in joules. With square wave pulses of selected current value the threshold for convulsion may be below 100 milliamperes or above 2,000 milliamperes. It is advisable to measure the current value during millisecond pulses with relatively long intervals between.

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Electroconvulsive TherapyElectrodesElectrophysiologyHumansRiskJournal Article

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BibTeXRIS

D Gordon. 1982. Electro-convulsive therapy with minimum hazard.. https://doi.org/10.1192/bjp.141.1.12

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PubMed1995

[Experience with the Thymatron DG apparatus in determining the duration of electroconvulsions].

Electroconvulsive therapy was administered, using a Thymatron apparatus DG in a group of 29 female patients with a total number of 150 convulsions. The apparatus makes it possible to take an EEG reading and to evaluate it automatically. Moreover, the paroxysm were evaluated clinically and visually from EEG tracings. The authors proved a significant disagreement as regards evaluation of the length of electroconvulsions assessed by the three methods of evaluation (clinical, automatic EEG analyzer and visual EEG evaluation). They identified moreover in the group, using the automatic EEG analyzer, 11.7% abortive convulsions, by visual EEG evaluation 10.3%, while according to clinical evaluation the rate was as high as 59.2%. Conversely on clinical evaluation no convulsion appeared to be protracted, while according to EEG this was the case in 9.6% (automatic analyzer) and in 10.3% (visual evaluation). On qualitative discrimination of abortive and protracted convulsions and convulsions with a satisfactory duration the automatic and visual EEG evaluation did not differ significantly, and the function of the automatic analyzer seems satisfactory for this basic evaluation of electroconvulsions.

Electroconvulsive Therapy↗