Advanced Heart Failure is a serious condition with high morbidity and mortality rates. Advanced medication therapies may not be adequate and in some cases, heart transplantation may be the only option. However, not enough cadaver hearts are available for transplant, and this is a global problem. To overcome the situation and help effectively treat people with advanced heart failure, various Mechanical Circulatory Support devices have been developed over time. In this article, we will learn more about them.
Heart Failure (HF) is a fairly common condition around the world, and shows a high morbidity and mortality rate. In the US alone, 5.8 million people are affected according to the Centre for Disease Control. Similar numbers as a percentage of the population can be expected in India as well, given the prevalence of coronary heart disease, rheumatic heart disease, obesity, diabetes and hypertension in India. When the patient is suffering from Refractory End-stage Heart failure, simply called advanced heart failure, heart transplantation from a cadaver was the gold standard in the past. However, there is a perennial shortage of cadaver hearts for transplantation either in India, or anywhere abroad. That is why, Mechanical Circulatory Support (MCS) devices have evolved over time to help treat people with Advanced Heart Failure, better.
Advanced Heart Failure (AHF) is not a single event or condition. According to cardiologists, there is a wide spectrum of conditions and profiles of people suffering from Advanced Heart Failure. On one end, there are people with chronic, stable Heart Failure who can manage some of their daily activities, while on the other end, there are people in acute cardiogenic shock. Mortality rates of these people also varies depending on the profile. So, in the absence of emergency heart transplantation, an MCS device helps reduce mortality rates and prolong life.
The American College of Cardiology (ACC) and American Heart Association (AHA) have categorized HF into 4 stages, each requiring a different strategy for Outpatient Management.
Stage-D HF persons can suffer from a life-threatening condition called Cardiogenic Shock. In this, the heart is suddenly unable to pump enough blood to the rest of the body. This is generally caused by a heart-attack, however, not all heart-attack victims may experience cardiogenic shock. The condition is marked by hemodynamic parameters. This includes systolic blood-pressure of less than 80-90 mmHg, mean arterial-pressure that is 30 mmHg lower than the baseline value, cardiac index of less than 1.8L/min/m2 without support or less than 2.2 L/min/m2 with support, and higher left or right ventricle filling pressures with clinical symptoms of hypoperfusion.
Mortality rate for people in cardiogenic shock varies from 30% to 50%. In such a scenario, Mechanical Circulatory Support (MCS) devices are inevitable for effective treatment.
Depending on how long the device is required for the person, MCS devices are classified as temporary MCS for short-term use, and durable MCS for long-term use. Again, depending on the pumping mechanism, the pumps are classified as centrifugal pumps, axial flow pumps and volume displacement pumps.
Temporary MCS are again of two types: percutaneous, where they are implanted under the skin, and extracorporeal, where they remain outside the body. There are various percutaneous and extracorporeal temporary MCS that are widely used today. They help in stabilizing the heart, achieving myocardial recovery (partial to total recovery of heart function) and recovery of functionality in the brain, liver and kidneys.
Percutaneous temporary MCS devices are of different types, based on:
These devices are surgically implanted using central cannulation (cannulas are hollow, stainless tubes) or via the femoral or axillary artery.
There is a wide range of temporary MCS Devices used in India and worldwide. Each one of them can be the subject of an entire blog, so we are only listing those devices here.
So how will the doctors decide which is the best device to be used for that particular person?
All these go a long way in achieving positive outcomes.
If you or a loved one is facing advanced heart failure and want to explore options like mechanical circulatory support, trust the expert cardiology team at Kauvery Hospital. With branches in Chennai, Hosur, Salem, Tirunelveli, and Trichy, Kauvery Hospital offers advanced heart care and personalised treatment plans to improve your heart health and quality of life.
Mechanical Circulatory Support (MCS) refers to devices that help the heart pump blood when it becomes too weak to function on its own. They are used in patients with advanced heart failure to stabilize circulation, improve organ function, and extend life.
MCS is recommended for patients with severe or end-stage heart failure who no longer respond to medications. It’s often used as a bridge to heart transplantation or as a long-term therapy when transplant is not possible.
MCS devices can be temporary (used during emergencies like cardiogenic shock) or durable (used for long-term support). Common devices include IABP, Impella, Tandem Heart, and LVAD systems.
By restoring blood flow and reducing strain on the heart, MCS devices improve organ function, reduce mortality, and enhance recovery chances until transplantation or permanent recovery.
Some patients use MCS devices temporarily until a transplant, while others rely on them long-term (destination therapy). The approach depends on the patient’s heart condition and overall health.
Kauvery Hospital is globally known for its multidisciplinary services at all its Centers of Excellence, and for its comprehensive, Avant-Grade technology, especially in diagnostics and remedial care in heart diseases, transplantation, vascular and neurosciences medicine. Located in the heart of Trichy (Tennur, Royal Road and Alexandria Road (Cantonment), Chennai (Alwarpet, Vadapalani & Radial Road), Hosur, Salem, Tirunelveli and Bengaluru, the hospital also renders adult and paediatric trauma care.
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