经鼻经食管超声心动图在左心房血栓检测中的应用。
Transnasal transesophageal echocardiography in the detection of left atrial thrombus.
机构信息
Department of Medicine, Cardiovascular Division, Osaka Ekisaikai Hospital, 2-1-10 Honden, Nishi-ku, Osaka 550-0022, Japan.
出版信息
J Cardiol. 2009 Dec;54(3):425-31. doi: 10.1016/j.jjcc.2009.07.002. Epub 2009 Nov 3.
BACKGROUND
The widespread use of transesophageal echocardiography (TEE) is limited by disadvantages, including patient intolerance and increased medical costs. We aimed to investigate the feasibility and safety of transnasal TEE in the detection of possible embolic sources in patients with atrial fibrillation (AF) and/or stroke, using an ultrathin TEE probe.
METHODS
Sixty-two patients with AF and/or stroke underwent transnasal TEE without conscious sedation. The presence or the absence of the following parameters was evaluated: left atrial (LA) thrombus; LA spontaneous echocardiographic contrast; intraatrial shunts; and aortic plaque.
RESULTS
The insertion of a TEE probe was successful in 52 (84%) patients. TEE found LA thrombus in 10 (19%) patients and other embolic sources in 4 (8%) patients. Two (4%) patients had mild epistaxis.
CONCLUSIONS
This study demonstrated that the use of transnasal TEE was feasible and safe in the detection of LA thrombus in patients with AF and/or stroke.
背景
经食管超声心动图（TEE）的广泛应用受到一些缺点的限制，包括患者不耐受和医疗费用增加。我们旨在使用超微型 TEE 探头研究经鼻 TEE 在检测房颤（AF）和/或中风患者可能的栓塞源中的可行性和安全性。
方法
62 例 AF 和/或中风患者在无镇静的情况下接受经鼻 TEE。评估以下参数的存在或缺失：左心房（LA）血栓；LA 自发性超声对比；心房间分流；和主动脉斑块。
结果
TEE 探头的插入在 52 例（84%）患者中成功。TEE 发现 10 例（19%）患者存在 LA 血栓和 4 例（8%）患者存在其他栓塞源。2 例（4%）患者有轻度鼻出血。
结论
本研究表明，经鼻 TEE 在检测 AF 和/或中风患者的 LA 血栓方面是可行和安全的。
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