Gossweiler B, Meier-Abt P J, Wyss P A
Schweizerisches Toxikologisches Informationszentrum Zürich.
Ther Umsch. 1994 Sep;51(9):622-7.
Accidental ingestions of noxious substances are frequent events during childhood, especially in children one to three years of age. In contrast, severe symptoms and a serious outcome of these intoxications have been observed rather rarely; therefore, it is very important to avoid unnecessary and potentially harmful therapeutic measures. An extensive body of information has been collected nationally and internationally, allowing an accurate risk assessment in a constantly increasing number of cases. If there is need for treatment at all, the early application of activated charcoal (dose: 1 g/kg body weight) will efficiently inhibit absorption of noxious substances in most instances. Whereas the first dose of activated charcoal is administered to block absorption, repeated administration (0.5 g/kg body weight, every 2 to 4 hours) has been shown to shorten half-life and enhance the nonrenal clearance of chemically different substances even after absorption. Only few substances like heavy metals, lithium, or alcohols are not adsorbed by activated charcoal. Whole bowel irrigation may be a valuable alternative in cases where activated charcoal has been shown to be ineffective. Poisoning with ferrum formulations is an instructive example of this type of intoxication. Gastric lavage and pharmacologically induced emesis are no longer considered a routine treatment in poisoning but rather a special therapeutic option for very special situations. In all cases of severe poisoning, maintenance of vital functions, applying the principles of emergency medicine, has to have first priority.(ABSTRACT TRUNCATED AT 250 WORDS)
儿童意外摄入有害物质是常见事件,尤其是1至3岁的儿童。相比之下,这些中毒导致严重症状和严重后果的情况则较为罕见;因此,避免不必要且可能有害的治疗措施非常重要。国内外已收集了大量信息,使得在越来越多的病例中能够进行准确的风险评估。如果确实需要治疗,早期应用活性炭(剂量:1克/千克体重)在大多数情况下能有效抑制有害物质的吸收。首剂活性炭用于阻止吸收,而重复给药(0.5克/千克体重,每2至4小时一次)已表明即使在吸收后也能缩短半衰期并提高不同化学物质的非肾清除率。只有少数物质如重金属、锂或酒精不会被活性炭吸附。在活性炭已证明无效的情况下,全肠灌洗可能是一种有价值的替代方法。铁制剂中毒就是这类中毒的一个典型例子。洗胃和药物诱导催吐不再被视为中毒的常规治疗方法,而是非常特殊情况下的一种特殊治疗选择。在所有严重中毒病例中,按照急诊医学原则维持生命功能必须是首要任务。(摘要截选至250字)