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Vol. 43. Núm. 2.
Páginas 124-125 (Marzo 2019)
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Vol. 43. Núm. 2.
Páginas 124-125 (Marzo 2019)
Images in Intensive Medicine
DOI: 10.1016/j.medin.2018.09.016
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Agitated saline echo testing: Two useful indications in critical care patients
Ecocardiograma con solución salina agitada: dos indicaciones útiles en pacientes críticos
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P. Blancoa,
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ohtusabes@gmail.com

Corresponding author.
, G. Bellob
a Intensive Care Unit, Clínica Cruz Azul, Argentina
b Intensive Care Unit, “Hospital Central de las FF.AA. (DNSFFAA)”, Montevideo, Uruguay
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Agitated saline (bubble) transthoracic contrast echocardiography is a technique classically performed in diagnosing intracardiac and intrapulmonary shunts. However, there are other useful indications in critically ill patients. Typical preparation of the bubbles is shown in Video 1. One indication is in pericardiocentesis, proving the needle is in the pericardium and not in a cardiac chamber, after injecting the solution through the needle and observing the bubbles in the pericardial fluid (arrowheads, Fig. 1a, without bubbles in the pericardial fluid and b, with bubbles. Video 2; RA: right atrium; RV: right ventricle; LA: left atrium; LV: left ventricle). The second indication is for checking the adequate position of the central venous catheters when the rapid filling of the RA is observed (RA, Fig. 2a, before; and b, after injecting agitated saline through the catheter, arrowheads, and Video 3), and especially in left central venous catheters that descend through the left mediastinal border (Fig. 3a, arrows), allowing detecting that the catheter is in a persistent left superior vena cava emptying in the coronary sinus (CS), observing the filling of the CS (arrowheads) before the RA after injecting agitated saline through the catheter (Fig. 3b, before, and c; after injecting the agitated saline; Video 4), and thus ruling out an aberrant insertion (e.g. left internal mammary vein) and avoiding the unnecessary removal of the catheter and even the need of more sophisticated imaging techniques.

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Funding

This work has not been supported by any grants.

Conflicts of interest

Authors have no conflicts of interest related to this submission.

Appendix A
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This work has not been presented at any conferences.

Copyright © 2018. Elsevier España, S.L.U. y SEMICYUC
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