Der Anaesthesist
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Randomized Controlled Trial Clinical Trial
[Influence of different preinjections on unfavourable side-effects of succinylcholine-induced block (author's transl)].
Pretreatment with a subparalytic dose of a nondepolarizing relaxant is used to prevent side-effects of the succinylcholine (Sch) dose needed for intubation. On the other hand small doses of Sch (self-taming) or lignocaine are recommended to avoid in part reversal of the Sch-induced block caused by nondepolarizing relaxant. 50 patients received different preinjections before Sch-induced relaxation: 2 mg alcuronium, n = 10; 1 mg pancuronium, n = 10; 0.1 mg/kg bw Sch, n = 10; 1 mg/kg bw lignocaine, n = 10; no pretreatment, n = 10. Injection of small doses of Sch or lignocaine prior to the Sch dose needed for intubation, offered no advantage in comparison to the conventional method of pretreatment with nondepolarizing relaxant, concerning intensity and duration of the relaxation, conditions for intubation and muscle fasciculations. After preinjection of Sch or lignocaine a similar rise of serum potassium was observed as without preinjection (0.4-0.5 mEq/l).
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With the Serafol bedside card the ABO identity can be checked before transfusion in a very quick and simple way. The new bedside card is made from polyester film with a special surface coating indifferent to sera, which absorbs the anti sera to well when it begins to dry, that it contains no intermediatory labile additives. ⋯ It is not necessary to dissolve the test sera in water. A drop of the patient's blood and the conserved blood respectively are mixed with the antisera and the result can be read within a minute.