Management of Hydrallantois by Transcervical Allantocentesis Along with Medical Termination of Pregnancy: A Report of 7 Clinical Cases

The present investigation was carried out to assess the efficacy of novel transcervical allantocentesis to drain allantoic fluid along with medical termination of pregnancy to treat hydrallantois affected cows.A total of seven crossbred cows were treated by this method.All the cows had clinical signs like severe bilaterally distended abdomen, respiratory distress, expiratory grunt and difficulty in walking during admission due to excessive allantoic fluid accumulation.The transcervical allantocentesis was performed using Rusch catheter (18") by fixing the catheter at internal os of cervix after passing through the allantoic membrane.Simultaneously the induction of parturition was done using inj.Cloprostenol (500 µg, i/m) and inj.Dexamethasone (24 mg, i/m).The average allantoic fluid drained from all the 7 animals was 91.72±6.48litres with an average drainage rate of 3.17±0.15litres per hour.The time taken for the drainage of the allantoic fluid was 28.94±2.58hours.The time interval between the medical termination and delivery of the fetus was 50.50±10.91hours.Out of 7 cows, in 6 cows the fetus was removed manually and in one cow cesarean section was performed.All the cows were treated for retained placenta after removal of the fetus.From the study it was concluded that transcervical allantocentesis could be used along with medical termination of pregnancy to treat hydrallantois to save the dam.