Pecchia Fabiana, Di Giorgio Stefania, Sfacteria Alessandra, Monti Salvatore, Vullo Cecilia, Catone Giuseppe, Marino Gabriele
Polivet, Via Salaria 1317, 00138 Roma, Italy.
Veterinary Teaching Hospital, Department of Veterinary Sciences, University of Messina, Viale Giovanni Palatucci, 98168 Messina, Italy.
Animals (Basel). 2023 Oct 25;13(21):3309. doi: 10.3390/ani13213309.
Prenatal diagnosis comprises a set of investigations, both instrumental and laboratory-based, which aim to monitor the health of the foetus during pregnancy, from the early stages of embryonic development to the moments preceding delivery. A growing interest is emerging for the preterm ultrasound morphological screening of embryos and foetuses, aimed at assessing the integrity and viability of the conceptus, as well as the early diagnosis of anomalies which can cause complications. This study is a retrospective study of the ultrasonographic findings of twins in the authors' clinical activity from 2016 to 2022. Only seven cases of monochorionic twins were recorded, out of the whole number of evaluations performed on 3120 foetuses, with a prevalence of 0.6% and 0.2% in feline and canine foetuses. All the twins had their own amniotic sac and umbilical cord but presented a single placenta and a single allantoic sac. Unfortunately, the three feline cases were not more recognizable at term. In the four canine cases, three were of opposite sex and then necessarily dizygotic. Twins may have an impact on the success of a pregnancy due to the risk of dystocia, as observed in some of the reported cases. Prenatal ultrasound allows early recognition of twins in dogs and cats.
产前诊断包括一系列基于仪器和实验室的检查，旨在监测孕期胎儿的健康状况，从胚胎发育早期到分娩前的各个阶段。对胚胎和胎儿进行早产超声形态学筛查的兴趣日益浓厚，其目的是评估孕体的完整性和活力，以及早期诊断可能导致并发症的异常情况。本研究是对作者在2016年至2022年临床活动中双胞胎超声检查结果的回顾性研究。在对3120例胎儿进行的全部评估中，仅记录到7例单绒毛膜双胞胎病例，在猫和犬胎儿中的患病率分别为0.6%和0.2%。所有双胞胎都有各自的羊膜囊和脐带，但有一个单一的胎盘和一个单一的尿囊。遗憾的是，3例猫科病例在足月时无法进一步识别。在4例犬科病例中，3例为异性，因此必然是双合子。如在一些报告病例中所观察到的，由于难产风险，双胞胎可能会对妊娠成功产生影响。产前超声可早期识别犬猫中的双胞胎。
