Barnett L, Martin M W S, Todd J, Smith S, Cobb M
School of Veterinary Medicine and Science, Sutton Bonington Campus, University of Nottingham, College Road, Leicestershire, UK.
J Small Anim Pract. 2011 Jan;52(1):26-31. doi: 10.1111/j.1748-5827.2010.01013.x.
To retrospectively assess the long-term outcome for dogs that were presented with collapse, syncope or exercise intolerance for which an underlying cause is not identified.
The clinical records of animals presenting to two practices were assessed. Dogs which presented for collapse, syncope or exercise intolerance at least 6 months previously and did not receive a definitive diagnosis despite investigation were included. Follow-up of these cases was carried out by conducting telephone interviews with the owners.
One hundred and fifty-three cases were successfully followed up. Clinical signs had resolved in 64 cases (42%), 35 dogs (23%) were continuing to exhibit clinical signs, although 22 of these had improved without medical intervention. In 17 cases (11%), a diagnosis had subsequently been made or treatment was being administered and 37 dogs (24%) had died. Of the deaths, 18 (12%) were considered to be related to the original presentation. The overall prevalence of death and deterioration related to the problems investigated was 16·2% of cases. Death in boxers was significantly more common than in other breeds (36%).
Death and deterioration are uncommon outcomes for dogs other than boxers presenting with collapse, syncope and exercise intolerance for which a definitive diagnosis cannot be made.
回顾性评估因出现虚脱、晕厥或运动不耐受但未查明潜在病因的犬的长期预后情况。
对两家医疗机构接收的动物临床记录进行评估。纳入至少6个月前因虚脱、晕厥或运动不耐受前来就诊且尽管经过检查仍未得到明确诊断的犬。通过与犬主进行电话访谈对这些病例进行随访。
成功随访了153例病例。64例（42%）的临床症状已消失，35只犬（23%）仍有临床症状，不过其中22只未经药物治疗症状已有所改善。17例（11%）随后得到了诊断或正在接受治疗，37只犬（24%）已经死亡。在死亡病例中，18例（12%）被认为与最初的症状表现有关。与所调查问题相关的死亡和病情恶化的总体发生率为病例总数的16.2%。拳师犬的死亡率显著高于其他品种（36%）。
对于出现虚脱、晕厥和运动不耐受且无法明确诊断的犬，除拳师犬外，死亡和病情恶化的情况并不常见。
