Surgical Treatment of an Abdominal Abscess Caused by a Migrating Iron Wire From the Ventral Colon,a Case Report

A 13-year-old mare presented for evaluation of recurrent colic episodes. The horse was diagnosed with a mass within the spleen at the ultrasound examination of the abdomen; the levels of Serum Amyloid A and the fibrinogen were high and so a presumptive diagnosis of an abscess involving the spleen was made base on clinical, ultrasonographic and laboratory findings and it was decided to perform n exploratory laparotomy for a definitive diagnosis and possible treatment. Upon abdominal exploration a mass involving the spleen, the lateral wall of the ventral colon adherent to the left abdominal wall was diagnosed and with an intraoperative ultrasound examination a linear hyperechoic foreign body was diagnosed within the mass. It was removed through an enterotomy of the left ventral colon that allowed the digital exploration of the mass without spilling of pus within the peritoneal cavity. The horse was discharged and the long term follow-up revealed no complications and no more signs of abdominal pain.     

Hargreaves does not evaluate nociception following a surgical laparotomy in Xenopus leavis frogs

The present study was performed to determine the effectiveness of the Hargreaves test for the evaluation of nociception in frogs, more precisely to determine if cutaneous thresholds to a radiant heat stimulus would increase with analgesics following an abdominal laparotomy performed under general anaesthesia. Non breeding female Xenopus leavis frogs (3 groups (non-anaesthetized, anaesthetized with tricaine methanesulfonate (MS222), with or without an abdominal laparotomy) were used to evaluate the effectiveness of the Hargreaves test. Cutaneous thresholds were evaluated at baseline and following anaesthetic recovery (over 8 h) at six different body locations. Increased reaction times were observed in the gular area only at 1 h post-recovery following a MS222 bath immersion in frogs with (p < 0.02) and without the abdominal laparotomy (p < 0.002). In conclusion, the Hargreaves test does not provide an adequate test to evaluate nociception induced by an abdominal laparotomy and consequently cannot be used to evaluate analgesics in X. leavis frogs.     

妊娠绵羊宫内胎儿血管插管手术的研究

宫内胎儿插管术是一种难度大、无菌条件要求严格、手术操作精细的外科手术。本研究共进行了８头妊娠绵羊中８例胎儿插管手术，其中脐动脉插管两例，胫前动脉插管６例。结果表明：胫前动脉插管较脐动脉插管容易，且子宫切口小，胎儿暴露少，羊水损耗少，插管固定可靠。本文对导管的制作，绵羊的麻醉和剖腹术，胎儿血管插管及术后观察，术后胎儿成活率等均作了一一论述。     

重复手术法收集超数排卵后的家兔卵母细胞

采用促卵泡素(FSH)和FSH混合25%聚乙烯吡咯烷酮(PVP)两种方法进行超数排卵,以正常排卵母兔作对照,经过3次重复剖腹手术(每次间隔至少50天以上)收集家兔卵母细胞,旨在探索大量获取家兔成熟卵母细胞简单有效的方法。结果超数排卵的两组获取总卵母细胞数和可用卵数比对照组均高出3倍以上(P=0.001),两种超数排卵效果无显著差异(P>0.1)。3次连续手术均成活的家兔中,对照组和FSH组3次取卵效果无显著差异(P>0.05),FSH混合25%PVP组首次手术与第三次手术卵母细胞数出现显著差异(P<0.01)。本方法可有效获取大量家兔卵母细胞,并提高实验动物利用率。