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Table 1 Comparison between transoral esophageal echocardiography (TOEE) and transnasopharyngeal esophageal echocardiography (TNPEE)

From: The feasibility study of transnasopharyngeal esophagus echocardiography in the ultrasonic diagnosis

General information TOEE TNPEE
Number of patients 105 people 103 people
Age range 7~78 years 44~58 years
Male/ female 41/64 50/53
Complications Mucosal bleeding (33% incidence); Recurrent pharyngitis (13% incidence); Other (5% incidence) Mucosal bleeding(67% incidence); Recurrent pharyngitis (2% incidence); Other (1% incidence)
success rate 99% 49%
Positive rate 87% 89%