[The use of a "transgastric oblique" transesophageal echocardiographic view to visualize the right ventricular inflow-outflow tract. Clinical applications].
This paper describes the transesophageal echocardiographic "oblique transgastric" view to assess the right ventricular inflow-outflow tract. With this approach it is possible to view the right atrium, tricuspid valve, right ventricular inflow and outflow tracts, and the main pulmonary artery. In 2 clinical cases we evaluated the clinical feasibility of this approach in the diagnostic phase; in 31 patients who underwent cardiac transplantation we examined the advantages of this noninvasive hemodynamic monitoring. An advantage of transgastric view compared with esophageal standard views at 30-60 degrees, is the feasibility to obtain the velocity-time integral of the outflow tract systolic flow to calculate cardiac output by the pulsed Doppler sample volume orientation, which in this view is parallel to pulmonary arterial flow; moreover, it is possible to evaluate pulmonary artery pressures from pulmonary and tricuspid regurgitation.
Catena
Emanuele
E
U.O. di Anestesia e Unità di Cure Intensive Cardiotoraciche, Dipartimento Cardio-Toraco-Vascolare A. De Gasperis, Azienda Ospedaliera Niguarda Ca' Granda, Milano. emanuele.catena@tin.it
Milazzo
Filippo
F
Guzzon
Davide
D
Montorsi
Emanuela
E
Paino
Roberto
R
Villa
Elena
E
D000368:Aged; D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000209:etiology; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D001011:Aorta / Q000000981:diagnostic imaging; D002302:Cardiac Output; D003131:Combined Modality Therapy; D018619:Echocardiography, Doppler, Pulsed; D017548:Echocardiography, Transesophageal / Q000379:methods*; D004630:Emergencies; D004697:Endocarditis, Bacterial / Q000150:complications / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000601:surgery; D005240:Feasibility Studies; D005260:Female; D005402:Fistula / Q000000981:diagnostic imaging / Q000209:etiology; D006325:Heart Atria / Q000000981:diagnostic imaging*; D006331:Heart Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D016027:Heart Transplantation; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D013203:Staphylococcal Infections / Q000150:complications / Q000000981:diagnostic imaging / Q000188:drug therapy / Q000601:surgery; D013212:Staphylococcus epidermidis; D014261:Tricuspid Valve / Q000000981:diagnostic imaging*
D000900:Anti-Bacterial Agents