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Pericardial tamponade - EMCrit Project
https://emcrit.org/ibcc/tamponade/
Highly sensitive, but may be absent in low-pressure tamponade. ... Examine the arterial line tracing over several respiratory cycles. This is the most accurate way to measure the pulsus. Decreasing the sweep speed on the monitor allows for observing the blood pressure during several respiratory cycles.
19: Cardiac tamponade | Thoracic Key
https://thoracickey.com/19-cardiac-tamponade/
Figure 19.3 RA pressure tracing in a patient with tamponade. Note the increased RA pressures, preserved respiratory variation, and blunted Y descent. Figure 19.4 Simultaneous right atrial and pericardial pressure tracings in a patient with tamponade before and after the removal of 400 mL of pericardial fluid.. Figure 19.5 Aortic pressure tracing in a patient with …
Cardiac Tamponade - StatPearls - NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK431090/
Cardiac tamponade is a medical or traumatic emergency that happens when enough fluid accumulates in the pericardial sac compressing the heart and leading to a decrease in cardiac output and shock. ... The JVP tracing may reveal an absent 'y' descent due to the elevated intrapericardial pressure that prevents the filling of the ventricles ...
Cardiac tamponade | Deranged Physiology
https://derangedphysiology.com/main/required-reading/cardiac-arrest-and-resuscitation/Chapter%20221/cardiac-tamponade
The pericardium is a fibrous sack which is described as "inextensible", that is to say at any given moment there is little stretch. Ergo, small volumes quickly will give rise to a rapid increase in pericardial pressure, giving rise to tamponade physiology. This produces decreased cardiac output because the stroke volume is limited by the presence of incompressible …
Cardiac tamponade - UpToDate
https://www.uptodate.com/contents/cardiac-tamponade#!
When larger amounts of fluid accumulate (pericardial effusion) or when the pericardium becomes scarred and inelastic, one of three pericardial compressive syndromes may occur: Cardiac tamponade – Cardiac tamponade, which may be acute or subacute, is characterized by the accumulation of pericardial fluid under pressure.
Cardiac Tamponade Triad: The Signs and How to Treat It
https://nursingcecentral.com/cardiac-tamponade-triad-the-signs-and-how-to-treat-it/
Summary. Cardiac tamponade is a life-threatening condition caused by fluid building up around the heart. The cardiac tamponade triad presents with hypotension, a narrow pulse pressure, JVD, muffled heart sounds and potentially pulsus paradoxus. The condition is confirmed with an echo. The best treatments for a confirmed tamponade are IV fluids ...
Tamponade: Hemodynamic and Echocardiographic …
https://pubmed.ncbi.nlm.nih.gov/29137910/
The hemodynamic features of tamponade are revealed by considering the effects of pericardial constraint. Pulsus paradoxus and loss of the normal "y" descent of a jugular venous pressure waveform may be appreciated on clinical examination. When a pulmonary artery catheter is placed, equalization of diastolic pressures across all chambers is ...
Pericardial tamponade | Critical Care Medicine - McGill ...
https://www.mcgill.ca/criticalcare/teaching/files/pericardial-tamponade
Pericardial tamponade. Definition = a condition in which the pressure in the pericardial space is increased, resulting in hemodynamic abnormalities that reflect compression of the chambers of the heart. Hemodynamic abnormalities due to compression of the heart constitute a spectrum. Compromise of the circulation represents an advanced degree.
Equalization of Intracardiac Pressures in Cardiac …
https://journals.lww.com/anesthesia-analgesia/Fulltext/2016/04000/Equalization_of_Intracardiac_Pressures_in_Cardiac.5.aspx
Despite the lack of electrocardiograph tracing, the timing of these 2 events is confirmed in the moving image from Supplemental Digital Content 2, Supplemental Video 2, ... General anesthesia and mechanical ventilation may hamper the assessment of cardiac tamponade, because pressure ventilation reverses the respiratory effect of intracardiac ...
Pericardial Disease: Tamponade and Constriction
https://www.asecho.org/wp-content/uploads/2016/02/Shah_pericardial_SOTA_2016_final1.pdf
Tamponade: take home points • Cardiac tamponade is a clinical diagnosis: integrate echo with pulsus paradoxus and other clinical findings to determine need for pericardiocentesis • Pericardial pressure takes over everything in tamponade: diastolic pressure equalization; !JVP, doesn’t change with respiration (-Kussmaul sign); no Y descent
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