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. 2019 Mar 1;17(1):4.
doi: 10.1186/s12947-019-0154-2.

The feasibility study of transnasopharyngeal esophagus echocardiography in the ultrasonic diagnosis

Xiaofeng Wang  1 , Fang Nie  2 , Na Ye  2 , Xuehui Liu  2 , Shaoqing Yang  2
Affiliations

The feasibility study of transnasopharyngeal esophagus echocardiography in the ultrasonic diagnosis

Xiaofeng Wang et al. Cardiovasc Ultrasound. .

Abstract

Background: Professor Xinfang Wang first introduced the clinical application of trans nose pharynx esophagus echocardiography (TNPEE) in 2014. Subsequently, we developed the technology. In the present study we assess the feasibility of TNPEE in the ultrasonic diagnosis.

Methods: Select patients suitable for TNPEE examination. After obtaining written consent of patients or their families, oral dacronin hydrochloride gel local anesthesia was given 10-15 min before examination. The nostrils were disinfected and then smeared with tetracaine hydrochloride gel, which acted as local anesthesia and lubrication. The probe was inserted gently through the nostrils and entered the esophagus through the nasal cavity and pharynx. TNPEE is similar to transoral esophagus echocardiography (TOEE) after the probe reaches the esophagus.

Results: TNPEE was performed in 103 patients. Forty-five patients (43.7%) underwent the examination successfully, 46 patients (44.7%) failed because of objective reasons, 12 patients midway refused to accept the examination and cancelled the examination, accounting for 11.6%, 11 patients (12.1%) suffered from epistaxis. Of all the patients with epistaxis, 9 had taken anticoagulant drugs, accounting for 82% of the patients with epistaxis. The vital signs of all patients were stable and no serious complications occurred.

Conclusion: Compared with TOEE, TNPEE can cause less nausea and vomiting reaction, and patients take longer time to undergo examination, which is conducive to more detailed examination. However, TNPEE has a high requirement for the probe, and its success rate is relatively low. It is easy to cause nasal bleeding in patients, so its wide clinical application is limited.

Keywords: Trans nose pharynx esophagus echocardiography (TNPEE); Trans oral and esophageal echocardiography (TOEE).

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Conflict of interest statement

Ethics approval and consent to participate

This study was approved by the Committee of the Ethics Committee of the Second Hospital of Lanzhou University.

Consent for publication

Not applicable

Competing interests

The authors declare that they have no competing interests.

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Figures

Fig. 1
Fig. 1
Philip S8-3 t probe
Fig. 2
Fig. 2
Transnasal echocardiography
See this image and copyright information in PMC

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