Conscious dog preparation for production of controlled afterload to the right ventricle.

Technique for the Performance of Repeatable Renal Clearances in the Conscious Male Dog

“…Nevertheless, no rationale for the selection of the female dog was immediately apparent [2][3][4][5][6][7][8][9][10][11], However, Sm ith [12] in his textbook Principals o f Renal Physiology stated that the reasons female dogs are used are (1) they are 'fairly resistant to bladder infection' and (2) 'rigid sterile technique' is unnecessary. However, the use of female dogs has serious disadvantages; dogs have to be restrained and trained [1,3,4,8,[11][12][13]; in addition, an episiotomy must be performed [9,10]. Due to the nature of our experiment, valuable time was lost and the condition of the dogs deteriorated before renal clearances could be instituted.…”

“…The ends of the catheters were passed through a subcutaneous tunnel and exteriorized through a mid-scapular stab wound. Three-way stopcocks were connected to the ends of the catheter and these were maintained in side pockets of specially designed jackets [1], The method for maintaining the catheter and for housing and protecting the catheters from the dog was described [1], Technique for urethral catheter placement. A 7 Fr.…”

Comparison of Ejection Fraction and Segmental Circumferential Fiber Shortening Velocity in the Anesthetized and Conscious Canine

“…All catheter ends were externalized and housed in a specially designed dog jacket.3) Maintenance of the catheters required flushing with heparin (40units/ml of saline) twice a week. 3) Cineangiography was performed in the anesthetized animal. Control aortic pressure and standard lead II EKG were first recorded.…”