176 ENTOZOA FOUND IN MAN. 



trocar, may give rise to serious, or sometimes mortal, 

 complications, owing to the escape of the hydatid 

 fluid into the cavity. 



M. Boinet has pointed out certain precautions, 

 by the adoption of which the escape of the hydatid 

 hquid into the abdominal cavity may be prevented. 

 When the canula is withdrawn from the cyst 

 through the opening in the abdominal parietes the 

 fingers of the left hand should be very carefully 

 apphed at the spot where the trocar has been in- 

 serted, so as to press the abdominal parietes against 

 the cyst, and to keep it so closely in apposition with 

 the tumour that, when the canula is withdrawn from 

 the cyst, no interspace is left between it and the 

 abdominal parietes. These precautions having been 

 properly taken, the canula is to be withdrawn, and 

 the pressure is to be kept up during a few minutes 

 after its withdrawal, so that the small opening made 

 by the introduction of the trocar into the cyst may 

 be completely obliterated, and the escape of fluid 

 into the peritoneum be prevented ; the cyst is .then 

 to be lightly compressed by means of graduated 

 compresses and of a bandage passed round the body. 

 The patient should be directed to remain in the 

 recumbent posture during thirty-six or forty-eight 

 hours after the operation.^ 



When it is necessary for the puncture to pass 

 through a large serous cavity, it has been recom- 

 mended by M. Jobert to leave the canula fixed in 

 the opening for twenty-four hours. In this manner 



^ " Traitement des tumeurs hydatiques du foie par les ponc- 

 tions capillaires et par les ponctions suiviea d'injections iodees," 

 by M. Boinet. Paris, 1859. 



