Gelding, Normal & AbnormalDonkey Castration Normal and OtherwiseEric Davis DVM MS DACVS DACVIM скачать в хорошем качестве

Gelding, Normal & AbnormalDonkey Castration Normal and OtherwiseEric Davis DVM MS DACVS DACVIM

Eric Davis DVM MS DACVS DACVIM Objectives Understand anatomy Normal Cryptorchid Ligation technique Complications Bleeding Infection and scirrhous chord Evisceration (Eventration) “Proud cut” Hydrocele It means nothing without anatomy! Anatomy Transverse Plane through inguinal region Abdominal cavity is continuous with the interior of scrotum Peritoneal lining is continuous with the vaginal tunic (the tunic) Definitions Castration Open Closed Cryptorchid “High flanker” “Ridgeling” “Dropping” Closed Castration Anatomy of the Normal Testis Cryptorchid Testis Incomplete Cryptorchid The Basic Castration Make Both Incisions Grasp testi, push into scrotum Stretch skin taught Identify median raphe Correct blade hold Make incision In single smooth motion large enough for drainage At bottom of scrotum Blocking Tiny? BLOCK THE Testis Larger? BLOCK THE Cord 10 mls each Incision and strip Secure Testis Small TestiS Bronchial forceps in meatiest portion Large TestiS Puncture proximally w/blade Place index finger in hole Ligature Transfixation Note On Ligatures Suture material makes a difference Do NOT use chromic or plain gut Vicryl recommended (better with Triclosan) Knots make a difference Surgeon’s knot insufficient Recommend Miller’s knot Always transfix Leave enough stump distal to ligature Not required …..BUT Stretch and examine How Are Donkeys Different? Larger testes per pound Store fat in scrotum Fascia and fat are more vascular Cryptorchidism is very rare Cryptorchids when they do occur tend to be incomplete (?) Incomplete Cryptorchid Incomplete Cryptorchid “Proud Cut” Diagnosis Observation Palpation Ultrasound Endocrinology Testosterone Estrone sulfate AMH Premature Healing and Seroma Swelling From Hemorrhage Scirrhous Chord Wierd Stuff Eventration: the WORST! Hydrocele Healing of tunic to form a pouch after castration Fills with peritoneal fluid Often mistaken for a testis or a hernia Not a health problem and best left alone Diagnosis by palpation or ultrasound Take Home Understand the procedure and anatomy Donkeys are different from horses Ligature decreases complications Beware the crytorchid donkey QUESTIONS?