Cardiac Output Decreased: Causes & Reasons

Possible Causes for Cardiac Output Decreased

Cardiac Tamponade

restricting cardiac filling and decreasing cardiac output. [bestpractice.bmj.com]

cardiac output. [emdocs.net]

cardiac output related to decreased preload and contractility. [medical-dictionary.thefreedictionary.com]

Hypovolemia

Broadly defined, hypovolemia represents inadequate circulating plasma volume leading to decreased cardiac preload and thus decreased cardiac output and blood pressure. [oxfordmedicine.com]

Inversely, a reduction in heart rate or stroke volume will lead to a decrease in cardiac output. [ems1.com]

Many classification schemes have been proposed to categorize hypovolemia based on relative levels of decreased plasma volume. [oxfordmedicine.com]

Hypotension

decrease the total cardiac output of the heart, functionally decreasing the ability to generate blood pressure. [ncbi.nlm.nih.gov]

Hypovolemia Hypovolemia caused by blood loss ( hemorrhage ) or orthostatic volume shifts, for example, reduces cardiac output by decreasing central venous pressure and ventricular [cvphysiology.com]

When this occurs, venous return to the left ventricle is diminished, leading to a decrease in cardiac output and arterial pressure and a state of obstructive shock. [cvphysiology.com]

Dilated Cardiomyopathy

If the blood isn't being pumped out into circulation very well, cardiac output decreases. [study.com]

This constant dilating of the walls of the heart weakens it more and more, causing the cardiac output to decrease more. [youtube.com]

Decreased cardiac output. There is less blood going to the body. 3. The heart walls dilate more to try to get more and more blood out to the body. [youtube.com]

Myocardial Infarction

This results in an abrupt decrease in forward cardiac output, leading to congestive heart failure and often to cardiogenic shock. [brown.edu]

Effects of Acute Myocardial Infarction Cardiopulmonary sytolic/diastolic dysfunction decreased cardiac output (↓ stroke volume) tachycardia arrhythmias dyspnea pulmonary congestion [cvpharmacology.com]

Cardiogenic shock Cardiogenic shock results when there is a marked reduction in forward cardiac output leading to hypotension, decreased organ perfusion, and at the same time [brown.edu]

Septicemia

In septic shock, cardiac output is increased and peripheral vascular resistance is decreased, whereas in other forms of shock, cardiac output is typically decreased and peripheral [merckmanuals.com]

While hypovolemia will result in decreased cardiac output (and blood pressure) with inadequate organ perfusion leading to organ dysfunction, overzealous fluid resuscitation [doi.org]

cardiac output, or b) ongoing signs of hypoperfusion despite achieving adequate intravascular volume and adequate mean arterial pressure (1C); avoiding use of intravenous [doi.org]

Restrictive Cardiomyopathy

cardiac output) that progress as systolic dysfunction increases. [aafp.org]

Diuretics are the mainstay of therapy for patients with volume overload, but excessive use can lead to decreased filling pressures with decreased cardiac output and signs/ [clinicaladvisor.com]

Symptoms related to low cardiac output include fatigue, weakness and, in extreme cases, cardiac cachexia can occur. [healio.com]

Acute Respiratory Distress Syndrome

During RM, it can increase the resistance of lung vessels and transiently decrease cardiac output and mean arterial pressure 67, 68. [nature.com]

A possible risk of this approach is a decrease in cardiac output and worsening of nonpulmonary-organ function. [doi.org]

It is likely that these related reductions resulted in improved venous return and cardiac output. [doi.org]

Heart Valve Disease

Cardiac output is decreased because a portion of the left ventricular output is being regurgitated into the left atrium. [emedicine.medscape.com]

In patients with severe stenosis, calcified leaflets, or low cardiac output no diastolic murmur may be audible. [textbookofcardiology.org]

[…] in cardiac preload, which leads to hypotension with weakness and lightheadedness.[21] During labor and delivery cardiac output increases more in part due to the associated [en.wikipedia.org]

Spinal Cord Injury

The aim of monitoring is to identify the decreased cardiac output that may result from sympathetic nerve blockade; excessive autonomic nerve responses (i.e., distended bladder [encyclopedia.com]

Streptococcal Toxic Shock Syndrome

cardiac output, low-to-normal systemic vascular resistance, and striking reduction in ventricular performance. [ncbi.nlm.nih.gov]

[…] patients with strep TSS that was unlike that for patients who had typical gram-negative septic shock; this profile was consistent with toxic cardiomyopathy (i.e., relatively low [ncbi.nlm.nih.gov]

Primary Pulmonary Arterial Hypertension

cardiac output backs blood into pulmonary circuit e.g., left heart failure or mitral valvular disease Lung disease/hypoxia Decreased oxygen delivery leads to hypoxemic pulmonary [medbullets.com]

Warfarin may be considered in children with IPAH, patients with low cardiac output, those with a long-term indwelling catheter and those with hypercoagulable states. [link.springer.com]

[…] in mean pulmonary arterial pressure (PAP) ≥10 mm Hg to ≤40 mm Hg with unchanged or increased cardiac output. 2 Modifications of this definition have been suggested for children [phaonlineuniv.org]

Low-Cardiac-Output Syndrome

Keywords: low cardiac output syndrome, knowledge, practic Low cardiac output syndrome (LCOS) refers to a decrease in cardiac output that is due to transient myocardial dysfunction [medcraveonline.com]

title = "Pathophysiology of post-operative low cardiac output syndrome", abstract = "Low cardiac output syndrome frequently complicates the post-operative care of infants [scholars.northwestern.edu]

Abstract: Low cardiac output syndrome frequently complicates the post-operative care of infants and children following cardiac surgery. [eurekaselect.com]

Anaphylaxis

Catamenial or cyclical anaphylaxis is a complex clinical syndrome with poorly reported incidence and prevalence in the literature review. The underlying mechanism is still a myth although a few proposed hypotheses are stated. Early recognition of these symptoms will bring optimal treatment and prevent unnecessary[…] [ncbi.nlm.nih.gov]

Cardio-Spondylo-Carpo-Facial Syndrome

The autonomic nervous system is fine and the low blood pressure is a symptom of low cardiac output - see Low blood pressure and postural hypotension. [drmyhill.co.uk]

High-Output Heart Failure

CHF occurs when the flow of blood from the heart ( cardiac output ) decreases, or fluid backs-up behind the failing ventricle, or both. [health.howstuffworks.com]

Surgical closure of the fistula promptly decreased her cardiac output and improved the heart failure. [ncbi.nlm.nih.gov]

The total peripheral resistance decreases when the arterioles dilate. It causes an increase in the venous return and the cardiac output. [youtube.com]

Postrenal Azotemia

output, decreased plasma albumin osmotic pressure. primary renal azotemia results from loss of renal functional parenchyma. [medical-dictionary.thefreedictionary.com]

Ischemia. 04:43 So if there’s decreased cardiac output, doesn’t that mean decreased perfusion? Doesn’t that mean ischemia? [lecturio.com]

[…] retention from a variety of causes. prerenal azotemia is due to extrarenal causes that reduce renal blood flow and glomerular filtration, e.g. dehydration, shock, reduced cardiac [medical-dictionary.thefreedictionary.com]

Basilar Artery Thrombosis with Occlusion of a Precerebral Artery

'cardiac monitoring abnormal', 'cardiac murmur', 'cardiac murmur functional', 'cardiac output decreased', 'cardiac output increased', 'cardiac stress test abnormal', 'cardiac [definedterm.com]

[…] cardial output as demonstrated by cardiac events monitoring) have been previously excluded. 2. [seesound.com]

[…] enzymes increased', 'cardiac function test abnormal', 'cardiac imaging procedure abnormal', 'cardiac index abnormal', 'cardiac index decreased', 'cardiac index increased' [definedterm.com]

Cholera

A 67-year old woman was brought by ambulance to the hospital because of syncope and collapse. Forty-eight hours prior to the admission she ate some crabs with her husband. The morning of admission she awakened with massive, watery diarrhea followed by vomiting and shock. She was admitted to the intensive care[…] [ncbi.nlm.nih.gov]

Prerenal Azotemia

Pathogenesis Etiology Cardiac failure Heart: congestive heart failure ( → decreased cardiac output → decreased renal perfusion). [vetstream.com]

output, decreased plasma albumin osmotic pressure. primary renal azotemia results from loss of renal functional parenchyma. [medical-dictionary.thefreedictionary.com]

Pathogenesis Etiology Cardiac failure Heart: congestive heart failure ( → decreased cardiac output). Dehydration ( → hypovolemia → decreased renal perfusion). [vetstream.com]

Rheumatic Aortic Valve Obstruction

output decreases. [medical-dictionary.thefreedictionary.com]

decreased cardiac output decreased aortic and therefore coronary perfusion pressure further ischaemia dysrhythmias VF Once in VF these patients are very difficult to resuscitate [aic.cuhk.edu.hk]

Therefore, blood flow to the brain is decreased, causing fainting. Fainting can also occur when cardiac output is decreased by an irregular heart beat ( arrhythmia ). [medicinenet.com]

Chronic Right-Sided Congestive Heart Failure

CHF occurs when the flow of blood from the heart ( cardiac output ) decreases, or fluid backs-up behind the failing ventricle, or both. [health.howstuffworks.com]

This compresses the LV cavity and decreases LV filling leading to decreased cardiac output & subsequently decreased systemic blood pressure. [nuemblog.com]

In rare cases, high-output HF may occur as a result of conditions with an increased (rather than decreased) cardiac output, which overwhelms the heart. [amboss.com]

Acute Renal Failure with Oliguria

Decreased cardiac output: Acute heart diseases such as myocardial ischemia, pulmonary embolism or decreased cardiac output due to mechanical ventilation. [urology-textbook.com]

This biomarker is reflected directly in urine output. Normal GFR depends on cardiac output. [americannursetoday.com]

Decreased cardiac output C. Decreased central venous pressure D. Tachycardia E. Edema F. [empowern.com]

Extrapulmonary Alveolar Hypoventilation

[…] with higher ventilation Cardiac output and shunt Decrease in cardiac output --> Decrease mixed venous O2 concent --> Greater reduction in PaO2 if shunt fraction is constant [ld99.com]

cardiac output – Hemoglobin-related disorders * Anemia * Left-shifted ODC (alkalosis, hypothermia, decreased BPG, HbF, COHb, MetHb) # Chromaffin cell – Adrenal medulla * [usmle287.wordpress.com]

decreased cardiac output→angina, CHF, papillary muscle dysfunction, dysrhythmias, MI • Renal: decreased urinary or GFR • Skin: mottled, ischemic • Liver: elevated SGOT, [clinicalgate.com]

Chronic Pulmonary Edema

Furosemide decreases GFR, activates the renin-angiotensin-aldosterone system, decreases cardiac output, and increases afterload early after administration. 8 Bottom Line: [emdocs.net]

Nitroglycerin is a vasodilator that reduces preload and, at higher doses, can cause decreased afterload, improving cardiac output. [cathlabdigest.com]

There is also a significant increase in left ventricular afterload, which causes a decreased cardiac output. [en.wikipedia.org]

Cardiogenic Shock

As a result of decreased contractility, the patient develops elevated left and right ventricular (RV) filling pressures and a low cardiac output. [www1.cgmh.org.tw]

cardiac output Decreased cardiac output worsens hypoperfusion and acidemia This process spirals creating a vicious cycle: Signs + Symptoms: Shortness of breath Dyspnea on [rebelem.com]

The result is myocardial hypoxia, further decreased cardiac output, and a triggering of compensatory mechanisms to prevent decompensation and death. [nurseslabs.com]

Adams-Stokes Syndrome

It is characterized by an abrupt decrease in cardiac output and loss of consciousness due to a transient arrhythmia; for example, bradycardia due to complete heart block. [dbpedia.org]

Explore these free sample topics: -- The first section of this topic is shown below -- Basics Description Sudden transient loss of consciousness due to decreased cardiac output [unboundmedicine.com]

Description Stokes-Adams syndrome is an abrupt, transient loss of consciousness due to a sudden but pronounced decrease in the cardiac output, which is caused by a paroxysmal [litfl.com]

Cor Pulmonale

Dysrhythmias Effects Decreased cardiac output → decreased blood pressure → activation of baroreceptors → reflex increased sympathetic activity/decreased vagal activity → increased [vetstream.com]

The RV may not be able to generate adequate force to overcome this pressure, leading to low RV cardiac output, which ultimately leads to a decreased left ventricle (LV) cardiac [unboundmedicine.com]

Increased RV pressures in conjunction with a low cardiac output may cause coronary ischemia, further impairing cardiac output and potentially causing complete cardiovascular [unboundmedicine.com]

Thyrotoxic Heart Disease

Decreased exercise capacity Despite the high cardiac output, hyperthyroid patients have a greatly reduced exercise tolerance. [houstonendocrine.com]

output Increased myocardial oxygen demand Decreased systemic vascular resistances Systolic hypertension Peripheral oedema Congestive cardiac failure (This seems paradoxical [ecgmojo.com]

[…] systemic vascular resistance and increased resting heart rate, left ventricular contractility, blood volume, and cardiac output. [ncbi.nlm.nih.gov]

Mitral Papillary Muscle Rupture

This causes the stroke volume to decrease and the cardiac output to decrease 1,2. This volume overload eventually causes a drop in forward cardiac output 1,2. [radiopaedia.org]

This results in an abrupt decrease in forward cardiac output, leading to congestive heart failure and often to cardiogenic shock. [brown.edu]

cardiac output. [openanesthesia.org]