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Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
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Heart Failure V: Medical Management01:30

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Medical Management of Acute Decompensated Heart Failure (ADHF)The primary goals of therapy for patients hospitalized with acute decompensated heart failure (ADHF) include:Relieving symptomsOptimizing volume statusSupporting oxygenation and ventilationMaintaining cardiac output (CO) and end-organ perfusionIdentifying and addressing the cause of ADHFPreventing complicationsProviding patient education on factors precipitating HF exacerbationPlanning for dischargeOngoing monitoring and assessment...
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Heart Failure VI: Adjunct Therapies01:22

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Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
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Cardiac Output I:Effect of Heart Rate on Cardiac Output01:19

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Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart...
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Cardiac Output and Stroke Volume01:11

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Cardiac output (CO) is an integral aspect of human physiology, reflecting the heart's efficiency and responsiveness to the body's needs. It represents the volume of blood that the left or right ventricle ejects into the aorta or pulmonary trunk each minute. The CO is calculated by multiplying the heart rate (HR)—the number of heartbeats per minute—by the stroke volume (SV)—the amount of blood pumped out with each heartbeat.
In an average resting adult male, the typical cardiac...
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Cardiomyopathy V: Interprofessional Care01:29

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Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
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Updated: Mar 27, 2026

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Increased Resource Utilization Post 2018 Heart Allocation Policy Change.

Toyokazu Endo1, Jaimin Trivedi1, Vasta Vemuri2

  • 1Department of Cardiovascular and Thoracic Surgery, University of Louisville School of Medicine, Louisville, KY, USA.

Clinical Transplantation
|March 25, 2026
PubMed
Summary
This summary is machine-generated.

The 2018 heart transplant policy change increased costs and resource use. Patients now use more support devices, stay longer in hospitals, and incur higher charges, despite similar survival rates.

Keywords:
costheart transplantmechanical circulatory supportoutcomesresource

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Area of Science:

  • Cardiovascular Medicine
  • Health Economics
  • Transplantation Science

Background:

  • The 2018 United Network of Organ Sharing (UNOS) policy change significantly altered heart transplant candidate management.
  • Previous analyses have not fully quantified the economic impact of this policy shift using national data.

Purpose of the Study:

  • To evaluate the impact of the 2018 UNOS heart allocation policy change on resource utilization and costs in adult heart transplant recipients.
  • To compare inpatient charges and length of stay before and after the policy implementation.

Main Methods:

  • Utilized the Healthcare Cost and Utilization Project (HCUP) National Inpatient Sampling database (2015-2022).
  • Identified adult heart transplant recipients and analyzed resource utilization across two policy periods (pre- and post-2018).

Main Results:

  • The post-policy period showed increased use of temporary mechanical circulatory support devices.
  • Mean length of stay and discharges to non-acute facilities were higher in the new policy era.
  • Median total inpatient charges significantly increased ($685,263 vs. $959,756; p < 0.001), as did total hospital costs.

Conclusions:

  • The 2018 UNOS policy change is associated with increased resource utilization and higher healthcare costs for heart transplantation.
  • Findings underscore the need for further examination of healthcare utilization and patient outcomes in the current era of heart transplantation.