Living with heart failure can be a debilitating experience, marked by shortness of breath and exhaustion from even the simplest tasks.
However, Cardiac Resynchronization Therapy (CRT), a treatment option available at PromiseCare Medical Group in Hemet, California, offers a promising solution. This therapy utilizes a specialized pacemaker to restore the heart’s natural rhythm and improve its pumping efficiency.
CRT has been shown to increase energy levels, reduce shortness of breath, and lower the risk of hospitalization by synchronizing the contractions of the heart’s ventricles.
Patients who undergo CRT can expect to experience significant improvements in their overall quality of life, regaining the energy and vitality they need to engage in daily activities.
With CRT, individuals can take control of their heart health and rediscover their liveliness.
Overview
Heart failure disrupts the heart’s essential process of pumping life-giving blood throughout the body, leading to fatigue, shortness of breath, and a reduced quality of life.
Cardiac Resynchronization Therapy (CRT) is a treatment designed to help restore the heart’s natural rhythm. Using a biventricular pacemaker, CRT improves the timing of heart chamber contractions, allowing the heart to pump more efficiently.
For individuals living with heart failure, especially those with left bundle branch block (LBBB), CRT may be an effective treatment option. This therapy has been shown to improve heart function and quality of life in approximately 70% of those treated.
CRT involves implanting a small device under the collarbone, with leads in the right and left ventricles, to help synchronize the heart’s contractions. This treatment can reduce hospitalization rates and mortality, leading to improved symptoms and a better quality of life.
CRT is especially beneficial for individuals with moderate to severe heart failure symptoms who haven’t responded to medication therapies.
Types
Facing heart failure disrupts the heart’s rhythm, leaving one breathless and exhausted. Cardiac resynchronization therapy (CRT) helps restore a normal heartbeat, relieving debilitating symptoms.
Two primary CRT devices exist, CRT-P and CRT-D, each catering to different patient needs and heart conditions.
CRT-P and CRT-D have distinct differences. The main types are:
- CRT-P: A pacemaker providing pacing support for heart failure patients with abnormal heart rhythms, helping regulate the heartbeat and improve overall heart function.
- CRT-D: A device combining pacing with the capability to deliver shocks for life-threatening arrhythmias, offering protection against potentially fatal heart rhythms, such as ventricular tachycardia.
- Biventricular pacemaker: CRT-P and CRT-D utilize this system, including leads placed in the right and left ventricles and sometimes an implantable cardioverter-defibrillator (ICD) for rhythm management.
The choice between CRT-P and CRT-D depends on specific heart failure symptoms, risk of arrhythmias, and overall health status. Understanding these options allows patients to work with their healthcare provider to determine the best treatment for their needs.
Why it’s done
Cardiac resynchronization therapy (CRT) is typically considered for individuals struggling with heart failure despite medication. The condition is often characterized by a left ventricular ejection fraction (LVEF) of 35% or less and delayed electrical signals causing uncoordinated heart contractions; this is commonly seen in patients with left bundle branch block (LBBB).
CRT aims to improve heart function by synchronizing the electrical stimulation of the left and right ventricles. This enhances the heart’s pumping action, increasing blood flow and reducing symptoms such as shortness of breath and fatigue.
The ultimate goal of CRT is to reduce hospitalizations and mortality rates, thereby improving quality of life. Clinical studies have demonstrated the efficacy of CRT in achieving these objectives, making it a recommended treatment option for those who haven’t responded to other treatments.
Understanding the reasons behind CRT enables informed care decisions and can be a step towards improved health.
Who it’s for
Cardiac resynchronization therapy (CRT) is typically reserved for patients who’ve tried various treatments for heart failure without finding relief from their symptoms.
Patients experiencing advanced heart failure may be candidates for CRT. These individuals have likely tried medication and lifestyle changes, but their symptoms persist.
A left ventricular ejection fraction (LVEF) of 35% or less indicates the heart’s pumping function is considerably impaired. Irregular heart rhythms may also be present, making everyday tasks challenging.
CRT, also known as biventricular pacing, can help regulate the heartbeat and improve overall quality of life.
Ideal candidates for CRT have the following characteristics:
- Severe heart failure symptoms: Shortness of breath, fatigue, and swelling persist despite medication and lifestyle changes.
- Prolonged QRS duration: A QRS duration of 150 ms or longer indicates considerable ventricular dyssynchrony.
- Left bundle branch block (LBBB): The heart’s electrical impulses are delayed, leading to inefficient pumping and increased symptoms.
Patients with these characteristics should discuss the potential benefits of CRT with their healthcare provider.
Risks
Facing the possibility of CRT surgery can be intimidating, and it’s natural to wonder about the potential risks involved. Being aware of the risks will help prepare mentally and emotionally.
As with any surgery, there are risks associated with CRT implantation, including potential infection at the surgery site, which affects approximately 1-3% of patients. There’s also a possibility of bleeding during or after the procedure, which may require further intervention.
Device-related complications, such as wire displacement or lead malfunction, can occur, and in some cases, additional procedures may be necessary to correct these issues. Although rare, adverse reactions to anesthesia can pose significant risks during implantation.
Additionally, there’s a small risk of pneumothorax (collapsed lung) during lead placement, which occurs in about 1-2% of procedures. Finally, some patients may experience worsening heart rhythm issues post-implantation.
Weighing these risks against the benefits of CRT in managing heart failure is essential, and discussing any concerns with a doctor can help make an informed treatment decision.
How you prepare
Preparing for cardiac resynchronization therapy (CRT) surgery can be an emotional and busy time. Working closely with your healthcare team to prepare your body and mind for the procedure is crucial. Your team will guide you through a series of steps.
Three key steps are involved in preparation:
- Sharing your medical history: Inform your healthcare providers about all medications, allergies, and recent infections to minimize risks during the procedure.
- Undergoing diagnostic tests: A thorough evaluation, including diagnostic tests, will confirm the presence of a left bundle branch block and assess your heart function.
- Discussing anesthesia and medications: Share your anesthesia history and any concerns about medications, as these may impact the approach taken during the procedure.
What you can expect
As preparation for cardiac resynchronization therapy (CRT) surgery is completed, the next step is undergoing a minor surgical procedure to implant the CRT device. The procedure typically requires IV sedation and local anesthesia, ensuring comfort throughout the process.
After the procedure, a hospital stay of several hours or overnight is necessary to monitor recovery and verify that the device functions correctly. This short hospital stay is crucial for the therapy’s safety and success.
During recovery, it’s essential to avoid heavy lifting and upper body movements for about four to six weeks, allowing the body time to heal.
As recovery progresses, improvements in heart function can be expected, including a reduction in symptoms such as shortness of breath.
Regular follow-up appointments, usually scheduled every six months, will become a routine part of care, enabling checks on the device’s functionality and battery status. These appointments help ensure the CRT device regulates the heart’s electrical signals effectively, improving life quality.
Results
Cardiac resynchronization therapy (CRT) can help restore the rhythm of life, leading to life-changing results. Notable improvements in heart failure symptoms can be expected due to undergoing CRT.
Clinical studies consistently show that CRT reduces hospitalization rates and enhances heart efficiency, allowing for better blood flow and oxygenation. Reduced hospitalization rates are a significant benefit of CRT, as it has been shown to decrease hospitalization rates in patients with heart failure.
Additional benefits of CRT include:
- Improved left ventricular ejection fraction (LVEF): CRT can enhance heart efficiency, improving LVEF and overall heart function.
- Increased exercise capacity: CRT can improve exercise capacity by restoring a more normal heart rhythm, allowing for greater ease in engaging in activities.
As these benefits are experienced, managing heart failure and reducing mortality rates become more achievable.
CRT is recognized as an essential component of heart failure management, providing patients with the best possible care.