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Agitated Blood-Saline Rather Than Agitated Air-Saline for Echocardiographic Shunt Studies.
J Am Soc Echocardiogr
August 2020
Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota. Electronic address:
"Neurologist's contribution to the diagnosis of sine materia respiratory insufficiency: case report".
BMC Pulm Med
August 2012
Pulmonology Unit, Department of Cardiology, Thoracic and Vascular Surgery and Critical Care Medicine, Azienda Ospedaliera ASMN, Istituto di Ricovero e Cura a Carattere Scientifico, Reggio Emilia, Italy, Viale Risorgimento 80, 42123, Reggio Emilia, Italy.
Background: Right-to-left shunt (RLS) may be the cause of marked hypoxemia, a respiratory insufficiency which is usually difficult to diagnose by respiratory physicians as it develops in the absence of an intrinsic lung disease.
Case Presentation: We report a case of RLS in a patient with a hepatopulmonary syndrome caused by chronic autoimmune cholangitis. RLS was suspected clinically by physical examination and by standard CT imaging and MIP reconstruction of the pulmonary vascular bed.
The usefulness of contrast during exercise echocardiography for the assessment of systolic pulmonary pressure.
Cardiovasc Ultrasound
October 2008
Cardiology Department, Hospital Garcia de Orta, Av, Torrado da Silva, Pragal 2801-951 Almada, Portugal.
Background: The systolic pulmonary artery pressure (PAPs) can be accurately estimated, non-invasively, using continuous-wave Doppler (CWD) ultrasound measurement of the peak velocity of a tricuspid regurgitant (TR) jet. However, it is often difficult to obtain adequate tricuspid regurgitation signals for measurement of PAPs, what could lead to its underestimation. Therefore, utilization of air-blood-saline contrast has been implemented for the improvement of Doppler signal in several clinical contexts.
View Article and Find Full Text PDFSuperiority of 10% air-10% blood-saline mixture for measuring the velocity of tricuspid regurgitation in patients with severe emphysema.
J Am Soc Echocardiogr
August 2003
Divisions of Cardiology, Cedars-Sinai Medical Center Los Angeles, California 90048, USA.
Background: Severe emphysema frequently is associated with elevated pulmonary artery systolic pressure. However, it is often difficult to obtain adequate tricuspid regurgitation (TR) signals for measurement of pulmonary artery systolic pressure in patients with severe emphysema.
Purpose: This study was conducted to evaluate the usefulness of air-blood-saline mixture in measuring TR velocity in severe emphysema.
The usefulness of a 10% air-10% blood-80% saline mixture for contrast echocardiography: Doppler measurement of pulmonary artery systolic pressure.
J Am Coll Cardiol
January 2002
Division of Cardiology, Cedars-Sinai Medical Center, Los Angeles, California 90048, USA.
Objectives: We assessed an air-blood-saline mixture for Doppler measurement of pulmonary artery systolic pressure (PASP) and the mechanism of enhancement of the Doppler signal by this mixture.
Background: Underestimation of PASP by Doppler echocardiography occurs with inadequate continuous wave (CW) signals of tricuspid regurgitation (TR).
Methods: We assessed in vitro the diameter and concentration of microbubbles of agitated air-saline mixture, air-blood-saline mixture and 10% air-10% plasma-80% saline mixture immediately, 5, 10 and 20 s after agitation.
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