Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.
Anim Reprod Sci. 2011 Jul;126(3-4):168-72. doi: 10.1016/j.anireprosci.2011.05.005. Epub 2011 May 24.
The aim of this study was to investigate uterine torsion in buffaloes, examine factors influencing the outcome of the disease, and to characterize the related alterations in blood constituents. A total of 126 buffaloes with uterine torsion were examined for stage of gestation, duration, degree, site and direction of torsion, as well as the location of the pregnant horn. Methods of correction were documented along with dam and calf survival. Blood samples were obtained from 20 buffaloes with uterine torsion and 10 healthy buffaloes for hematological and biochemical comparisons. Results showed that uterine torsion in buffaloes occurred in multi- (81.7%) and primiparous (18.3%), during late pregnancy (58.4%) and at full term (41.6%), clockwise (96%) and counter- clockwise (4%), at post- (98.4%) and precervical (1.6%), and was of high (52.3%), moderate (31%) and mild (16.7%) degrees. Torsion was predominantly (P=0.01) on same direction of the pregnant horn. Fetal and maternal mortalities occurred in 78.6% and 23.8% of the cases, respectively. The stage of pregnancy, and degree and duration of uterine torsion were major risk factors for fetal mortality (P=0.0001), while the stage of pregnancy and fetal viability were important risk factors for maternal mortality (P<0.05). There were significant (P<0.05) increases in monocytes, albumin, aspartate aminotransferase, creatine phosphokinase, blood urea nitrogen, and phosphorus and decreases in mean corpuscular hemoglobin concentration and globulin in the affected buffaloes. Time of occurrence and duration of torsion affected some of these parameters. Uterine torsion appears to be a serious problem in buffaloes that has certain peculiarities including time of occurrence, site and direction of torsion, and the high mortality rates. Uterine torsion adversely affects liver and kidney functions. Multiparous might be at greater risk of uterine torsion. The stage of pregnancy, as well as degree and duration of uterine torsion are risk factors for fetal and maternal mortalities.
本研究旨在探讨水牛子宫扭转，检查影响疾病结局的因素，并描述与血液成分变化相关的特征。对 126 头发生子宫扭转的水牛进行了妊娠阶段、扭转持续时间、扭转程度、部位和方向以及妊娠角位置的检查。记录了纠正方法，同时记录了母畜和犊牛的存活情况。从 20 头发生子宫扭转的水牛和 10 头健康水牛中采集血液样本，进行血液学和生化学比较。结果表明，水牛子宫扭转发生在多胎（81.7%）和初产（18.3%）、妊娠晚期（58.4%）和足月（41.6%）、顺时针（96%）和逆时针（4%）、后位（98.4%）和前位（1.6%）、高度（52.3%）、中度（31%）和轻度（16.7%）扭转。扭转主要发生在妊娠角的同一方向（P=0.01）。胎儿和母体死亡率分别为 78.6%和 23.8%。妊娠阶段、子宫扭转程度和持续时间是胎儿死亡率的主要危险因素（P=0.0001），而妊娠阶段和胎儿存活能力是母体死亡率的重要危险因素（P<0.05）。受影响的水牛单核细胞、白蛋白、天冬氨酸氨基转移酶、肌酸磷酸激酶、血尿素氮和磷显著升高（P<0.05），平均红细胞血红蛋白浓度和球蛋白降低。扭转发生时间和持续时间影响了其中一些参数。子宫扭转似乎是水牛的一个严重问题，具有某些特点，包括发生时间、扭转部位和方向，以及高死亡率。子宫扭转对肝脏和肾脏功能有不良影响。多胎可能面临更大的子宫扭转风险。妊娠阶段以及子宫扭转的程度和持续时间是胎儿和母体死亡率的危险因素。
