Low Cardiac Output: Causes & Reasons

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Possible Causes for Low Cardiac Output

Cardiac Tamponade

Fluid in the pericardial sac can impair cardiac filling, leading to low cardiac output and sometimes shock and death. [merckmanuals.com]

This condition causes decrease in the stretch and contraction in myocardium, stroke volume, cardiac output, leading towards a decrease in systolic blood pressure. [drnajeeblectures.com]

Low systolic blood pressure was the only clinical predictor of such a favorable response, and low cardiac output as measured in the catheterization laboratory was also predictive [circ.ahajournals.org]

Restrictive Cardiomyopathy

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

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

It may also produce signs referable to poor perfusion (low cardiac output). [merckvetmanual.com]

Dilated Cardiomyopathy

Left ventricular dysfunction causes exertional dyspnea and fatigue due to elevated left ventricular diastolic pressure and low cardiac output. [merckmanuals.com]

Hypotension

and hypovolemic (low cardiac output due to low intravascular volume). [accessmedicine.mhmedical.com]

[…] decrease should be detected and treated such as haemorrhaging or low cardiac output, etc. [escardio.org]

Noninvasive imaging or hemodynamic indices of low cardiac output or systemic vascular resistance are not diagnostic but may help to classify hypotension. [ncbi.nlm.nih.gov]

Hypovolemia

We have left ventricular dysfunction with cardiogenic shock hence why we get low cardiac output. Why then do we get an increased afterload in cardiogenic shock? [forums.studentdoctor.net]

Some Miscellaneous Tidbits About Shock The abnormally low cardiac output that we term "shock" can result from several causes. [unm.edu]

With progression of the dialysis session, the preload of the heart declines and eventually may become too low to maintain a sufficient cardiac output with the development [physoc.onlinelibrary.wiley.com]

Septicemia

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

Children with severe sepsis can present with low cardiac output and high systemic vascular resistance, high cardiac output and low systemic vascular resistance, or low cardiac [ncbi.nlm.nih.gov]

cardiac output septic shock associated with elevated systemic vascular resistance (2C); and use of hydrocortisone only in children with suspected or proven “absolute”‘ adrenal [doi.org]

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]

Myocardial Infarction

For example, in low cardiac output states such as systolic heart failure, the low output is unable to meet the oxygen demands of the body causing ischemia due to inadequate [clevelandclinicmeded.com]

Other cardiac valvular pathologies and low cardiac output states associated with a decreased mean aortic pressure, which is the prime component of coronary perfusion pressure [web.archive.org]

Patients with cardiac insufficiency often have pulmonary edema that impairs gas exchange as well as increasing the work of breathing, both of which add to the feeling of shortness [clevelandclinicmeded.com]

Heart Valve Disease

Algorithm for management of low-output, low-gradient aortic stenosis. [ncbi.nlm.nih.gov]

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

Patients with severe AS and low cardiac output often present with only modest transvalvular pressure gradients (ie, In patients with low gradient stenosis and what appears [ahajournals.org]

Acute Respiratory Distress Syndrome

Indications of ECMO for cardiac support Typical cardiac indications include refractory low cardiac output (cardiac index less 2 L⁄min⁄m 2 ) and hypotension (systolic blood [doi.org]

cardiac output with high systemic vascular resistance or high cardiac output with low vascular resistance (low-output heart failure vs. high-output heart failure). [en.wikipedia.org]

PEEP increases oxygenation but at the expense of venous return, cardiac output, and perfusion of the kidneys and liver. [patient.info]

Primary Pulmonary Arterial Hypertension

Echocardiography findings of right heart systolic dysfunction (eg, tricuspid annular plane systolic excursion) and certain right heart catheterization results (eg, low cardiac [merckmanuals.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]

cardiac output and pre-renal azotaemia. [revespcardiol.org]

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

Although CHF is commonly associated with low cardiac output (CO), it may also occur in high CO states. [ncbi.nlm.nih.gov]

Low cardiac output states after cardiac ischemia. Masse, L, Antonacci, B. “Low cardiac output syndrome: identification and management”. [clinicaladvisor.com]

Keywords Heart failure; Low cardiac output; High cardiac output; Arteriovenous fistula Introduction Heart failure usually occurs in the setting of a low cardiac output ; however [omicsonline.org]

Low-Cardiac-Output Syndrome

OBJECTIVES: To evaluate an empirically derived Low Cardiac Output Syndrome Score as a clinical assessment tool for the presence and severity of Low Cardiac Output Syndrome [ncbi.nlm.nih.gov]

RESULTS: The overall prevalence of low cardiac output syndrome was 7%. [ncbi.nlm.nih.gov]

OBJECTIVE: Limited evidence exists on use of corticosteroids in low cardiac output syndrome following cardiac surgery. [ncbi.nlm.nih.gov]

Chronic Right-Sided Congestive Heart Failure

cardiac output. [healio.com]

LVF, intra-cardiac shunt, cardiomyopathies CLINICAL FEATURES low cardiac output hypotension hepatic enlargement raised JVP (often difficult to assess in MV patients, large [lifeinthefastlane.com]

cardiac output syndrome Low output heart failure Malignant hypertensive heart disease Malignant hypertensive heart disease with congestive heart failure Nail changes associated [icdlist.com]

Anaphylaxis

Anaphylaxis is a rapidly progressing, life-threatening allergic reaction. The symptoms of anaphylaxis usually occur within minutes of exposure to an allergen. Symptoms usually vary in severity. Sometimes they only cause mild itching or swelling, but in some people they can be severe and life threatening. The symptoms of[…] [symptoma.com]

Cardiogenic Shock

Amrinone compared to dobutamine for low cardiac output syndrome Amrinone compared with dobutamine for low cardiac output syndrome Patient or population: adults with low cardiac [doi.org]

Abstract Cardiogenic shock is a clinical syndrome characterized by low cardiac output and sustained tissue hypoperfusion resulting in end-organ dysfunction and death. [ncbi.nlm.nih.gov]

One of the life-threatening complications of STEMI is cardiogenic shock during which hypotension is present from low cardiac output. [healio.com]

Spinal Cord Injury

Paraplegia (1991) 29, 573–581; doi:10.1038/sc.1991.85 R L Waters 1, R H Adkins 2 and J S Yakura 3 1 Clinical Professor of Orthopedic Surgery, University of Southern California, 7601 E, Imperial Highway, Downey, California 90242, USA 2 Project Co-Director, Regional Spinal Cord Injury Care System of Southern California, 7601[…] [web.archive.org]

Myxedema

Cardiovascular Cardiac contractility is impaired, leading to reduced stroke volume, low cardiac output, bradycardia and sometimes hypotension. [6] Reduced stroke volume in [emedicine.com]

Renal Kidney function may be compromised with reduced glomerular filtration rate because of low cardiac output and peripheral vasoconstriction or because of rhabdomyolysis [emedicine.com]

Tricuspid Stenosis

Abstract The diastolic rumbling murmur of mitral stenosis (MS) may be attenuated in the presence of low cardiac output, right ventricular enlargement, Lutembacher's syndrome [ncbi.nlm.nih.gov]

Reported cases typically include clinical manifestations of both systemic venous stasis and low cardiac output. [ncbi.nlm.nih.gov]

cardiac output), and right upper quadrant abdominal discomfort (due to an enlarged liver). [merckmanuals.com]

Chronic Constrictive Pericarditis

Six patients (35%) developed early postoperative complications; low cardiac output is the most common. [minervamedica.it]

The cause of death was low cardiac output syndrome in three patients, septic shock in one, and hemorrhage in the remaining patient. [revespcardiol.org]

 Atrial fibrillation and tricuspid regurgitation  In end-stage constrictive pericarditis, the effects of a chronically low cardiac output are prominent, including severe [slideshare.net]

Mesenteric Infarction

The common clinical finding in this entity is a low cardiac output state or even circulatory collapse. [ncbi.nlm.nih.gov]

cardiac output state with diffuse mesenteric vasoconstriction Mesenteric venous thrombosis Risk Factors Atrial fibrillation/flutter Recent acute MI Ventricular aneurysm Cardiomyopathies [learningradiology.com]

Intestinal infarction complicating low cardiac output states. Surg Gynecol Obstet 1977;144:371–375. 8. Granger DN, Hollwart ME, Parks DA. [kjim.org]

Rheumatic Aortic Valve Obstruction

In presence of normal cardiac output gradient of � 50 mm Hg indicative of severe AS Cardiac catheter Assessment Clinical features of severe disease syncope angina low pulse [aic.cuhk.edu.hk]

In low cardiac output states (e.g. severe left ventricular systolic dysfunction), transaortic velocities and gradients may be relatively low despite the presence of severe [wikiecho.org]

AVA and also a low mean gradient, this may either indicate true severe aortic stenosis or pseudo-severe aortic stenosis due to low cardiac output 6. [radiopaedia.org]

Acute Atrial Infarction

cardiac output syndrome is reported. [ncbi.nlm.nih.gov]

Sinus tachycardia Persistent sinus tachycardia is usually ominous, often reflecting left ventricular failure and low cardiac output. [merckmanuals.com]

Reduced secretion of atrial natriuretic peptide (10), as well as low cardiac output syndrome, has been reported when a right ventricular infarction is coincident with an atrial [ncbi.nlm.nih.gov]

Right-Sided Heart Failure

Low-output failure Cardiac output is low, but demand for blood flow is normal. The heart is unable to meet this demand and fails. [health.howstuffworks.com]

Ventricular interdependence may result in impaired LV filling, a decrease in LV stroke volume, and low cardiac output. [ekjm.org]

Acute Massive Pulmonary Embolism

/100 ml.), and low cardiac output. [ncbi.nlm.nih.gov]

Volume expansion versus norepinephrine in treatment of a low cardiac output complicating an acute increase in right ventricular afterload in dogs. [thoracic.org]

cardiac output) patent foramen ovale Echocardiographic findings may also help to distinguish the chronicity of events in patients with massive pulmonary embolus, which may [thoracic.org]

Cholera

We describe a patient who presented with cholera-like diarrhea seven days after eating shellfish at a seafood buffet on the Gulf Coast. The patient's stool culture grew only Vibrio fluvialis on TCBS agar, and his diarrhea and profound acidosis completely resolved within 24 hours of initiating antibiotics. To our[…] [ncbi.nlm.nih.gov]

Mitral Papillary Muscle Rupture

Significant postoperative predictors of mortality included low cardiac output (LCO, p=0.05), renal failure with hemodialysis (p=0.005) and implementation of extracorporal [thieme-connect.com]

cardiac output. [openanesthesia.org]

He was started on a low-dose milrinone infusion due to RV dysfunction and low cardiac output, and the cardiothoracic surgery department was consulted for emergent surgery. [revportcardiol.org]

Cardiac Beriberi

The other was in fulminating heart failure with clinical evidence of a low cardiac output but no peripheral oedema. The latter type of beriberi (shoshin) is rare. [ncbi.nlm.nih.gov]

[…] is low. [ncbi.nlm.nih.gov]

One had the classical features of a high cardiac output with raised jugular venous pressure and gross oedema. [ncbi.nlm.nih.gov]

Discrete Fibromuscular Subaortic Stenosis

Low cardiac output, pulmonary edema, and ventricular arrhythmias may occur late and are associated with increased mortality. [mhmedical.com]

[…] stenosis in the presence of a very low cardiac output. [elearning.sumdu.edu.ua]

Clinical features: Neonates with critical valvar aortic stenosis (AS) present with low cardiac output and shock, requiring emergency treatment. [mhmedical.com]