62 THE ROARING OPERATION 



the larynx in general. Cautiously exerting tension with 

 the forceps upon the incised border of the ventricular 

 mucosa, dissect it away from the loose underlying areolar 

 connective tissue either with the Moeller razor-shaped 

 scalpel or with a scalpel handle. (When the operation for 

 roaring was introduced by the author, this technic was used 

 and recommended, but later researches have convinced both 

 author and collaborator that the technic now recommended 

 is far superior from every point of view. ) 



However the mucosa is removed, the operator should take 

 care that the removal is complete, since any remnant incau- 

 tiously left behind in the ventricle may prevent the desired 

 adhesion of the arytenoid to the thyroid cartilage, or a small 

 patch of mucosa being left deep in the ventricle may per- 

 mit adhesion of other parts, imprisoning the mucous islet 

 and ending in a mucous cyst. 



When the mucosa has been removed from one or both 

 ventricles, all blood coagula should be wiped away, and any 

 shreds of tissue removed. 



If the patient has been cast, anaesthetized and turned 

 upon his back, turn him upon his side, remove the confin- 

 ing apparatus, and, while he is recovering from the anaes- 

 thesia, keep the laryngeal incision open and the larynx free 

 from blood. The hemorrhage is greatest when the aflimal 

 has been cast and placed under general anaesthesia, less if 

 cast and the operation performed under local anaesthesia, 

 and by far least of all when it is performed upon the stand- 

 ing animal with the aid of local anaesthesia with adrenalin. 



As soon as the operation has been completed upon the 

 standing animal, the head may be released and the patient 

 returned to the stall. It may be allowed to eat or drink at 

 convenience. The same is true of the patient cast for the 

 operation, and only local anaesthesia applied. Patients 

 cast and chloroformed should be prevented from eating or 

 drinking for some hours and should be fed sparingly for 

 three or four days. 



