Miller R H, Lehmkuhl L B, Bonagura J D, Beall M J
Department of Veterinary Clinical Sciences, The Ohio State University, College of Veterinary Medicine, Columbus 43210-1089, USA.
J Vet Intern Med. 1999 Mar-Apr;13(2):111-22. doi: 10.1892/0891-6640(1999)013<0111:raotcu>2.3.co;2.
The objective of this study was to evaluate retrospectively the clinical utility of ambulatory (Holter) electrocardiographic monitoring in syncopal dogs and to compare the Holter recording with the clinic electrocardiogram (ECG) in these animals. Fifty Holter reports and 44 medical records from 44 dogs were evaluated. A syncopcal episode occurred during monitoring in 24% of the recordings. No obvious relationship was found between the frequency of syncope occurring before Holter recording and the likelihood of a dog having an episode during recording. Holter recordings were helpful in establishing a diagnosis 42% of the time, but no relationship was detected between the frequency of episodes occurring before Holter recording and the likelihood of a diagnostically useful Holter. An arrhythmia was ruled out as the cause of syncope in 12% of the recordings and was implicated as the cause of syncope in 30% of recordings. Of these, 20% were ventricular tachyarrhythmias and 10% were bradyarrhythmias including pacemaker failure. Ambulatory electrocardiographic recordings led to a therapeutic change in 38% of cases. A comparison of the Holter recordings and clinic ECGs documented the expected increased sensitivity for Holter detection of arrhythmias. The average clinic ECG heart rate consistently exceeded the average Holter heart rate with a mean difference between the average heart rates recorded by the two techniques of 31 bpm (range -8-87 bpm).
本研究的目的是回顾性评估动态（Holter）心电图监测在晕厥犬中的临床应用价值，并比较这些动物的Holter记录与临床心电图（ECG）。评估了来自44只犬的50份Holter报告和44份病历。在24%的记录监测期间发生了晕厥事件。在Holter记录前发生晕厥的频率与犬在记录期间发生晕厥事件的可能性之间未发现明显关联。Holter记录在42%的时间里有助于确诊，但在Holter记录前发作的频率与Holter诊断有用性的可能性之间未检测到关联。在12%的记录中排除心律失常作为晕厥原因，在30%的记录中认为心律失常是晕厥原因。其中，20%是室性快速心律失常，10%是缓慢性心律失常，包括起搏器功能障碍。动态心电图记录在38%的病例中导致了治疗改变。Holter记录与临床ECG的比较证明了Holter检测心律失常预期的更高敏感性。临床ECG平均心率始终超过Holter平均心率，两种技术记录的平均心率之间的平均差异为31次/分钟（范围-8至87次/分钟）。
