Tocodynamometric study of uterine contractions during parturition in queens

Document Type : Short paper

Authors

1 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

2 Teaching Veterinary Clinical Complex, Department of Animal Reproduction, Gynaecology and Obstetrics, Mumbai Veterinary College, Maharashtra Animal and Fisheries Sciences University, Mumbai, Maharashtra-400012, India

3 Department of Animal Reproduction, Gynaecology and Obstetrics, Mumbai Veterinary College, Maharashtra Animal and Fisheries Sciences University, Mumbai, Maharashtra-400012, India

4 Department of Veterinary Physiology, Mumbai Veterinary College, Maharashtra Animal and Fisheries Sciences University, Mumbai, Maharashtra-400012, India

5 Teaching Veterinary Clinical Complex, Department of Surgery and Radiology, Mumbai Veterinary College, Maharashtra Animal and Fisheries Sciences University, Mumbai, Maharashtra-400012, India

Abstract

Background: Tocodynamometry is an approach in small animal obstetrics to diagnose initiation, progress, completion, and problems related to parturition in queens. Aims: 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. Methods: 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. Results: 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. Conclusion: 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.

Keywords

References

Chavan, AA (2021). Monitoring uterine contractile pattern during whelping by tocodynamometer with foetal doppler. MVSc Thesis, Maharashtra Animal and Fisheries Sciences University, Nagpur.
Chethana, H; Krishnaswamy, A and Sudha, G (2018). Comparative studies on uterine tocodynamometry in cases of primary complete uterine inertia and spontaneous whelping dogs. Int. J. Liv. Res., 8: 162-166.
Davidson, AP (2001). Uterine and foetal monitoring in the bitch. Vet. Clin. Small Anim. Pract., 31: 305-313.
Davidson, AP and Elits, B (2006). Advanced small animal reproductive techniques. J. Am. Anim. Hosp. Assoc., 42: 10-17.
Groppetti, D; Pecile, A; Del Carro, AP; Copley, K; Minero, M and Cremonesi, F (2010). Evaluation of newborn canine viability by means of umbilical vein lactate measurement, Apgar score and uterine tocodynamometry. Theriogenology. 74: 1187-1196.
Jayakumar, C (2015). Evaluation of neonatal viability following complicated delivery in dogs. Doctoral Dissertation, Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar. PP: 89-91.
Johnston, SD; Kustritz, MVR and Olson, PN (2001). Canine and feline theriogenology. 1st Edn., Philadelphia, W.B. Saunders. PP: 421-424.
Kustritz, MVR (2006). Clinical management of pregnancy in cats. Theriogenology. 66: 145-150.
Maul, H; Maner, WL; Saade, GR and Garfield, RE (2003). The physiology of uterine contractions. Clin. Perinatol., 30: 665-676.
Michel, E; Sporri, M and Ohlerth, S (2011). Prediction of parturition date in the bitch and queen. Reprod. in Dom. Anim., 46: 926-932.
Owmya, K; Anusha, DG and Vijaya, SR (2018). Evaluation of cardiotocography (Ctg) monitoring for intrapartum foetal surveillance and its correlation with Apgar score. IOSR J. Den. Med. Sci., 17: 42-50.
Purohit, GN and Gaur, M (2004). Dystocia and its management in the bitch and queen: a review. J. Can. Dev. Res., 4: 90-100.
Schmeltzer, LE (2012). Nursing the feline patient. 1st Edn., Wiley-Blackwell. PP: 21-23.
Smith, FO (2012). Guide to emergency interception during parturition in the dog and cat. Vet. Clin. Small Anim. Pract., 42: 489-499.
Tamminen, T (2020). Canine dystocia: oxytocin receptors, uterine inertia, and cardiotocography. Doctoral Thesis, University of Helsinki. Helsingin yliopisto. http://hdl. handle.net/10138/321945.
von Heimendahl, A and Cariou, M (2009). Normal parturition and management of dystocia in dogs and cats. In Practice. 31: 254-261.
Zambelli, D (2012). Management of pregnant and neonatal dogs, cats, and exotic pets. 1st Edn., Wiley-Blackwell. PP: 43-54.

Files

Share

How to cite

Statistics