[Surgery of hepatic hydatic cyst. Per-operative complications. Possibility of anaphylactic etiology (author's transl)].

Among fifty cases hepatic hydatid cysts, we have observed four serious complications during operation. These complications appeared at the time of the puncture of the cysts with a severe shock in three cases. Anaphylactic etiology can be suspected but not proved without specific tests. Because the severity of these accidents (one death), anesthesiologist must be aware of the possibility of such complications: it is important to recognize anaphylactic reactions during surgical procedure to institute immediately a treatment to restore both circulatory competency and cardiac out put. Vasopressors with both alpha and beta properties are most useful under the conditions of massive peripheral vasodilatation and bronchospasm which occur in anaphylaxis.