Lathesh K B, Dagli N R, Gulavane S U, Gaikwad S M, Bharucha S V, Rohi R R
MVSc Student in Animal Reproduction Gynaecology and Reproduction, Department of Animal Reproduction, Gynaecology and Obstetrics, Mumbai Veterinary College, Maharashtra Animal and Fisheries Sciences University, Mumbai, Maharashtra-400012, India.
Teaching Veterinary Clinical Complex, Department of Animal Reproduction, Gynaecology and Obstetrics, Mumbai Veterinary College, Maharashtra Animal and Fisheries Sciences University, Mumbai, Maharashtra-400012, India.
Iran J Vet Res. 2023;24(2):151-156. doi: 10.22099/IJVR.2023.44079.6477.
Abstract.
Tocodynamometry is an approach in small animal obstetrics to diagnose initiation, progress, completion, and problems related to parturition in queens.
The present study was conducted to monitor uterine contractions using tocodynamometry at full term pregnancy and during queening and to correlate uterine contractile pattern with progression of queening.
Once the signs of impending parturition were noted, the pressure transducer of tocodynamometer was placed on the lateral abdomen to monitor queening. The recordings were plotted as graph of time against pressure in mmHg. Uterine contractile patterns were assessed in order to study their relation to the progression of queening.
The initial uterine contractions had a baseline and peak pressures of 7-20 and 15-36.5 mmHg with mean time interval and frequency of 5.53 min and 1.91 peaks per 10 min, respectively, with mean change of amplitude of 15.35 mmHg. The progressive baseline and peak pressures of 15-32.5 and 24-62.3 mmHg increased to 20-55 and 30-89.2, respectively, with an increase in mean frequency from 3.88 to 5.25 peaks per 10 min and increase in mean change of amplitude from 25.21 to 33.87 mmHg, followed by decrease in mean time interval from 2.82 to 1.91 min in expulsive uterine contractions.
Monitoring uterine contractions using tocodynamometer helps in understanding progression of queening and problems that may rise during parturition. It was observed that during queening, baseline and peak pressures of uterine contractions remain the same, irrespective of presentation of kittens at birth.
摘要。
宫缩力测定法是小动物产科中用于诊断母猫分娩开始、进展、完成情况及相关问题的一种方法。
本研究旨在通过宫缩力测定法监测足月妊娠和分娩期间的子宫收缩情况，并将子宫收缩模式与分娩进展相关联。
一旦注意到即将分娩的迹象，将宫缩力测定仪的压力传感器置于侧腹部以监测分娩情况。记录以时间（分钟）对压力（毫米汞柱）的图表形式绘制。评估子宫收缩模式以研究其与分娩进展的关系。
最初的子宫收缩基线压力和峰值压力分别为7 - 20毫米汞柱和15 - 36.5毫米汞柱，平均时间间隔和频率分别为5.53分钟和每10分钟1.91个峰值，平均振幅变化为15.35毫米汞柱。逐渐增加的基线压力和峰值压力分别从15 - 32.5毫米汞柱和24 - 62.3毫米汞柱增至20 - 55毫米汞柱和30 - 89.2毫米汞柱，平均频率从每10分钟3.88个峰值增加到5.25个峰值，平均振幅变化从25.21毫米汞柱增加到33.87毫米汞柱，随后在子宫排出性收缩中平均时间间隔从2.82分钟降至1.91分钟。
使用宫缩力测定仪监测子宫收缩有助于了解分娩进展及分娩期间可能出现的问题。观察发现，在分娩期间，无论出生时小猫的胎位如何，子宫收缩的基线压力和峰值压力保持不变。
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