tailieunhanh - Ebook Advances in equine laparoscopy: Part 2

Part 1 book "Advances in equine laparoscopy" includes content: Bilateral ovariectomy in the mare, ovariectomy for the removal of large pathologic ovaries in mares, imbrication of the mesometrium to restore normal, horizontal orientation of the uterus in the mare, nephrectomy, repair of the ruptured equine bladder, equine thoracoscopy, general anesthesia in the recumbent horse, and other contents. | 17 Claude A. Ragle Bilateral Ovariectomy in the Mare Key Points Dykstra 1919 . Laparotomy is the described surgi- cal approach for ovariectomy in these early record- Laparoscopic ovariectomy offers excellent ings. Enough controversy was generated by the viewing complete hemostasis tension-free technique related to dangerous consequences tissue handling and small incisions. and effects on horse breeding that in 1717 France Ovariectomy is useful for treating behavioral passed a law to restrict the practice to special problems in mares directly attributable to the cases Fleming 1881 MacQueen 1895 . Charlier estrous cycle and to prevent reproduction. of France introduced the technique of mare castra- Prior attainment of fundamental and technique- tion via the vaginal approach in 1850 MacQueen specific laparoscopic skills is required before 1895 Hobday 1900 . This approach rapidly gained performing the operation. favor and is described in widely available surgery Careful preoperative preparations and client texts at least since 1903 Williams 1903 . communication are important for successful From these times to the present ovariectomy outcomes. has been implemented on a very minor scale com- Approximately 80 of mares treated for pared to castration of the male horse. In spite of estrous behavior problems will improve while the stark differences in the frequency of applica- about 30 will continue displaying some signs tion between the equine genders the major goals of estrous associated behavior. of the operations are similar permanent behavior modification and elimination of reproduction. Two obvious differences between the genders Introduction behavior and anatomy account for the disparity in the operations. Intact mares are not as difficult Ovariectomy of the mare has a long history that is or dangerous to house and handle as intact stal- traceable to at least the seventeenth century Mac- lions and the external location of testicles permit Queen 1895 Hobday 1900 .