التفاصيل البيبلوغرافية
| العنوان: |
Continuous Venous-Arterial Doppler Ultrasound During a Preload Challenge. |
| المؤلفون: |
Kenny JS; Health Sciences North Research Institute; Flosonics Medical; jon-emile@heart-lung.org., Gibbs SO; Flosonics Medical., Johnston D; Flosonics Medical., Hofer LM; Flosonics Medical., Rae E; Flosonics Medical., Clarke G; Flosonics Medical., Eibl JK; Health Sciences North Research Institute; Flosonics Medical; Northern Ontario School of Medicine., Nalla B; Health Sciences North Research Institute; Northern Ontario School of Medicine., Atoui R; Health Sciences North Research Institute; Northern Ontario School of Medicine. |
| المصدر: |
Journal of visualized experiments : JoVE [J Vis Exp] 2023 Jan 20 (191). Date of Electronic Publication: 2023 Jan 20. |
| نوع المنشور: |
Journal Article; Video-Audio Media |
| اللغة: |
English |
| بيانات الدورية: |
Publisher: MYJoVE Corporation Country of Publication: United States NLM ID: 101313252 Publication Model: Electronic Cited Medium: Internet ISSN: 1940-087X (Electronic) Linking ISSN: 1940087X NLM ISO Abbreviation: J Vis Exp Subsets: MEDLINE |
| أسماء مطبوعة: |
Original Publication: [Boston, Mass. : MYJoVE Corporation, 2006]- |
| مواضيع طبية MeSH: |
Heart*/diagnostic imaging , Heart*/physiology , Veins*, Cardiac Output/physiology ; Stroke Volume/physiology ; Ultrasonography, Doppler |
| مستخلص: |
A preload challenge (PC) is a clinical maneuver that, first, increases the cardiac filling (i.e., preload) and, second, calculates the change in cardiac output. Fundamentally, a PC is a bedside approach for testing the Frank-Starling-Sarnoff (i.e., "cardiac function") curve. Normally, this curve has a steep slope such that a small change in the cardiac preload generates a large change in the stroke volume (SV) or cardiac output. However, in various disease states, the slope of this relationship flattens such that increasing the volume into the heart leads to little rise in the SV. In this pathological scenario, additional cardiac preload (e.g., intravenous fluid) is unlikely to be physiologically effective and could lead to harm if organ congestion evolves. Therefore, inferring both the cardiac preload and output is clinically useful as it may guide intravenous (IV) fluid resuscitation. Accordingly, the goal of this protocol is to describe a method for contemporaneously tracking the surrogates of cardiac preload and output using a novel, wireless, wearable ultrasound during a well-validated preload challenge. |
| تواريخ الأحداث: |
Date Created: 20230206 Date Completed: 20230207 Latest Revision: 20230222 |
| رمز التحديث: |
20230222 |
| DOI: |
10.3791/64410 |
| PMID: |
36744770 |
| قاعدة البيانات: |
MEDLINE |
