Association of amniotic uric acid, glucose, lactate and creatinine concentrations and lactate/creatinine ratio with newborn survival in small-sized dogs – preliminary results

Bolis, Barbara and Scarpa, Paola and Rota, Alessandro and Vitiello, Tiziana and Veronesi, Maria Cristina (2018) Association of amniotic uric acid, glucose, lactate and creatinine concentrations and lactate/creatinine ratio with newborn survival in small-sized dogs – preliminary results. Acta Veterinaria Hungarica, 66 (1). pp. 125-136. ISSN 0236-6290

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Abstract

In order to define the normal composition of canine amniotic fluid and to detect differences between surviving and non-surviving newborn puppies, the present study determined the uric acid, glucose, lactate and creatinine concentrations and the lactate to creatinine ratio in amniotic fluids collected during elective Caesarean section from small-sized purebred bitches. The possible relationship between newborn survival and the studied parameters, as well as the effects of maternal parity, fetal gender and Apgar score were assessed. The study enrolled 27 small-sized purebred bitches submitted to elective Caesarean section at term. After opening the fetal membranes, amniotic fluid samples were collected aseptically from the amniotic sac of each fetus. The data obtained from 74 amniotic fluid samples collected from 27 bitches showed that amniotic glucose concentration was lower (P < 0.05) in non-surviving than in surviving puppies. Within the normal, surviving puppies, amniotic glucose concentration was higher (P < 0.05) in male than in female newborns, and the lactate/creatinine ratio was significantly higher in multiparous than in primiparous bitches (P < 0.05). These preliminary results demonstrate the relevance of amniotic glucose, but not of uric acid, lactate, creatinine and the lactate to creatinine ratio for detecting puppies at risk of death immediately after birth.

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