Bay Area ICD User Group

Friday, June 12, 2009

WATCH: ICD saves life of Belgium soccer player.

I don’t know how much explaining is necessary here. This amazing video says it all.

In the clip, Anthony Van Loo, a 20-year old Belgium soccer player collapses during a match and is resuscitated by his Implantable Cardioverter Defibrillator (ICD). The device delivers a shock to restore his heart rhythm.


Watch the annotated version here.


Most of the press has been reporting the incident as a heart attack. This is not accurate. Instead, Van Loo must have suffered what is called an “arrhythmia”. Arrhythmias are disturbances in the normal heart rate and electrical rhythm, and are usually life-threatening. Two of the most dangerous types of arrhythmia are called Ventricular Tachycardia (VT) and Ventricular Fibrillation (VF). Such abnormally fast heart rhythms prevent the heart from pumping blood to the brain, resulting in loss of consciousness. If left untreated, these dangerous rhythms will deteriorate into a cardiac arrest. Read about the difference between cardiac arrest and heart attack.

According to this Time story (Saving Athletes from Cardiac Arrest, by Carolyn Sayre), “Sudden Cardiac Arrest [...] affects more than 400,000 people in the U.S. and is the leading cause of death in competitive athletes.

Van Loo is known to suffer from an unspecified heart condition that makes him susceptible to life-threatening arrhythmias. He’s been allowed to return to playing soccer after the implantation of an ICD.

I'm sure glad I have an ICD. Truly amazing stuff!

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How is cardiac arrest different than a heart attack?

A lot of people confuse the two.

Heart Attack: Think of it as a “plumbing” problem.
It is a circulatory problem in the heart that causes one or more of the arteries delivering blood to the heart muscle to get blocked. Without oxygen, the muscle becomes damaged and dies.

Sudden Cardiac Arrest: Think of it as an “electrical” problem.
A Sudden Cardiac Arrest is usually caused when the heart’s lower chambers suddenly develop a rapid, irregular rhythm causing the ventricles to quiver rather than contract. This prevents the heart from pumping blood effectively and the supply of blood to the brain is compromised.

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Friday, May 15, 2009

MP3 player headphones can cause potentially dangerous interactions with pacemakers and ICDs.

This topic has been widely reported in the press since late last year when Dr. William Maisel of Beth Israel Medical Center in Boston revealed the findings of his study. Even CNN covered it.

But I just came across this video and thought it would be good to post it here.

Dr. Maisel and his team of researchers found a detectable interference with the device by the headphones in 14 of the 60 patients studied (23%). They observed that 15 percent of the pacemaker patients and 30 percent of the defibrillator patients had a magnet response.

For pacemakers, this means that the device inappropriately paced the heart without regard to the patient's underlying heart rhythm. For implantable defibrillators, this means that the ICD's antitacnycardia therapy was temporarily suspended due to the presence of the magnet.

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Thursday, March 19, 2009

My journey from patient to consumer of health care.

I was only six years old when, on a chilly December morning, I watched my grandmother casually wander into the bathroom for a shower. That was the last time I saw her alive. She was 66.

Almost four decades have passed and the image of my father and step-grandfather violently breaking down the door and carrying out her naked body into the light has remained vivid in my memory. We never knew for sure what took her life.

As a kid, I learned to get used to my heart skipping a beat or speeding up for no apparent reason. I knew that if I would stop just for a moment and wait, the discomfort would go away. Palpitations were quite frequent and I assumed other kids had them too. As an adult, I often thought they were a sign of an unbalanced diet, or the result of too much caffeine and stress.

But then, at 37, I passed out after running up a flight of stairs to catch a commuter train. My heart had gone faster to keep up with my body’s demand for oxygen but had failed to slow down after I stopped running. It just continued to beat faster and faster. I fainted on the platform that day and missed my train.

This is where the scariest chapter of my life begins. After that syncope, and a year of misdiagnoses, I was finally told I suffered from a somewhat common type of genetic heart disease: Hypertrophic Cardiomyopathy.

HCM afflicts 1 in 500 people worldwide, and may cause the heart to develop a deadly arrhythmia, resulting in sudden death. The Hypertrophic Cardiomyopathy Association, HCMA, says on their Web site that nearly 50% of all cases on file are of patients who lived with improper diagnoses for many years.

My first cardiologist suspected mitral valve prolapse (MVP), and my second one never told me I was at risk of sudden death. Per the latter’s advice, I resumed my life as before, unaware of the serious risks. I had to suffer two additional syncopes before I decided that I needed to take matters into my own hands, educate myself about my condition, and seek the care of an HCM specialist. And in my quest, I turned to the Internet for help.

According to iCrossing, a global digital marketing company based in Arizona, 59% of adults use online resources to obtain health information, versus 55% who rely on their doctors. Their study “How America Searches: Health & Wellness” (January 2008) indicates that the Internet has for the first time, ranked ahead of doctors as the number one source of health- and wellness-related information.

But most importantly, the study revealed that social media are increasingly relevant to health and wellness, with 34% of health searchers using Wikipedia, online forums and message boards to delve into health-related topics.

It’s a radical finding: patients aren’t learning from their doctors or even from Web sites as much any more. Patients are learning from each other.

In my experience, as soon as I realized my doctors weren’t giving me the answers I sought, I joined the HCMA online community and got plenty of answers from a network of patients like me. It was the beginning of my transformation from patient to consumer of health care.

After changing doctors and receiving an implanted cardioverter defibrillator (ICD), I joined two other patients and created a local support group. The Bay Area ICD User Group's mission is to educate patients on ICDs and ICD therapy, address concerns and questions, facilitate improved communication with our doctors, and to serve as a network for sharing experiences.

Today, I no longer think of myself as a lonely patient. I have become an empowered medical consumer who finds comfort, validation, and knowledge in the experiences of others like me. I have also learned to embrace my heart disease. It has given me the opportunity to better myself and to meet many wonderful people along the way.

I now realize that my grandmother’s sudden death was likely due to an undiagnosed cardiomyopathy—perhaps HCM. All we knew back then was that Grandma Lourdes had an “unusually large heart.” But as a kid, I always knew that.


Above, from right, grandma Lourdes, me (age 6), mom, and a friend.

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Saturday, March 14, 2009

Sprint Fidelis Leads Linked to 13 Deaths

Medtronic has acknowledged that 13 people may have died in connection with the Sprint Fidelis lead.

Sprint Fidelis Defibrillator leads were approved by the FDA in 2004 and manufactured for a little over 3 years, from September of that year to October 2007. In early 2007, it was reported that the leads might have been fracturing at a higher rate than Medtronic's other leads. This eventually lead to a recall.

The New York Times reports that about 150,000 in this country still have the Sprint Fidelis lead. This number includes members of our local ICD group.

A fractured lead can cause a patient's death if it precludes the ICD from detecting a dangerous arrhythmia, thus preventing it from delivering a lifesaving shock. It can also cause the ICD to fire for no reason, delivering an unnecessary shock.

Full NY Times article here.

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Wednesday, January 14, 2009

New study on longevity finds that Medtronic ICDs are superior.

From time to time the question of who makes the best ICD comes around (even if I’m the one bringing it up). But since there are few comparative studies among ICDs of different manufacturers, the answer is not an easy one.

Luckily, a study published by Europace late last year (Longevity of implantable cardioverter-defibrillators: implications for clinical practice and health care systems) helps shed some light on the topic of longevity.

A team of doctors in Bologna, Italy, looked into the longevity of Medtronic, Guidant and St. Jude Medical devices implanted from 1/1/2000 to 12/31/2002, a 3 year period.

They found that, under comparable conditions, Medtronic ICDs outlasted Guidant and St. Jude Medical devices, with replacement rates being, respectively, 42%, 95.3%, and 97.2%.

At the end of the follow-up period (12/31/07), 56 of 57 (97.2%) St. Jude Medical, 41 of 43 (95.3%) Guidant, and 10 of 24 (42%) Medtronic devices had been replaced. Among these 124 patients, 17 still had the device in service: 11 single-chamber ICDs (8 MDT, 2 GDT, 1 SJM), 2 dual-chamber ICDs (MDT), and 4 CRT-D (MDT).

At the time the study was done, St. Jude Medical and Guidant used Wilson Greatbatch batteries, while Medtronic devices had their own proprietary batteries.

Device longevity is a big deal to us, patients, since it translates into fewer replacements and a lower risk of complications. Longevity also has a significant impact on the cost per service life of an ICD. In other words, the up-front cost of a device is of limited value when estimating its long-term cost-effectiveness.

From a total of 153 patients:
  • 80 received a single chamber ICD (1 lead)
  • 59 received a dual-chamber ICD (2 leads)
  • 14 received CRT-D devices (3 leads)
The bottom line? Medtronic ICDs last longer.

But I do have to wonder if the newer Boston Scientific devices COGNIS and TELIGEN with proprietary battery technology would have given the Medtronic devices a run for their money.

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Thursday, January 8, 2009

HCM patients with Blue Cross Blue Shield coverage in danger of loss of access to HCM center in Boston.

This news does not directly affect us in California, but it's a big deal to our HCM friends who are treated at the Hypertrophic Cardiomyopathy (HCM) clinic at Tufts Medical Center in Boston, MA.

The HCM Center at Tufts Medical Center is the first such treatment and research facility in the Northeast. It provides patients and their families with comprehensive, multidisciplinary treatment for this genetic heart disease that affects 1 in 500 people. Sudden cardiac death (SDC) due to HCM is a tragic complication of this disease and ICDs are an effective treatment to prevent SCD in select patients. The risk of sudden cardiac death ranges between 1-5% per year.

On January 31, 2009 Tufts Medical Center's contract with Blue Cross Blue Shield of Massachusetts (BCBSMA) will expire (read the news coverage here).

This means that those patients with procedures already planned will have a grace period of between 30 and 90 days to complete care. However, after that, their plan will no longer cover Tufts as a network provider. Patients with HMO coverage will not be permitted to go to Tufts and those with PPOs and other plans will be viewed as out of network.

Whether you personally have BCBSMA or use the services of Tufts should not matter. We all must speak out about this issue. Write to BCBSMA to urge them to negotiate in good faith and for the benefit of their patients. Your community, your family, your HCMA friends need your support now.

Watch this important message from Lisa Salberg, president of the Hypertophic Cardiomyopathy Association (HCMA).



Act now! The HCMA is asking everyone to write to grievances@bcbsma.com. You may use this sample letter:


To: Blue Cross Blue Shield of Massachusetts

I am a supporter of Tufts Medical Center and I value the hospital and its physicians as high-quality, efficient providers of excellent medical care. I was surprised and dismayed to learn that Blue Cross Blue Shield of Massachusetts is not paying reasonable rates for the services of these important health care providers at Tufts Medical Center and Floating Hospital for Children.

I believe this is unfair. I hope Blue Cross realizes that it must provide Tufts and its physicians, fair and reasonable reimbursements so that they can continue to offer expert care, as they have for over 200 years.

I strongly urge Blue Cross Blue Shield of Massachusetts to offer Tufts Medical and its physicians a reasonable rate increase and to resolve this issue as soon as possible.

Sincerely,
NAME HERE

Please take a moment to urge BCBSMA to negotiate in good faith and for the benefit of their patients. Tufts Medical Center and Floating Children's Hospital are a top rated, high quality system with a proven track record of cost effective health care, and one of only 17 programs nationally with a specialized HCM program.

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Wednesday, December 31, 2008

Time for fresh beginnings

Another year is heading for the history books. It was quite a year too, even with all the great things that happened (yes we can!) honestly, I am ready to see it go. And I am ready to shake off the remnants of last year that are holding me back and start fresh with a new year and a new outlook.

I took a trip to the Mendocino coast. I have never seen an ugly day here. It doesn't matter if it is sunny and warm, or foggy and overcast, this area sings to my soul. I spent three days either sitting in a hot tub or by the fire, looking at the ocean or listening to it at night. No phones, no cell phone service and no TV. Just time to think.

I have mentioned before in other posts how our group has grown over this past year. It is amazing and wonderful. I have made some friends that I know I will never want to lose track of. I have learned some things that frankly sort of scare me. But mostly I think I have learned one thing, my heart disease is not going to hold me back. It may slow me down a little. It is not going to make my life any easier, but it isn't really making it harder... just different.

I have plans for this year that include getting back into scuba diving, losing the holiday weight I put on and who knows, maybe even climbing up the stairs without worrying about passing out. But mostly, I want to go six months without seeing a doctor. No offense to my wonderful medical teams, but I just saw way too much of them last year.

I am also hoping to see this group grow. We have three bloggers now from our group and we have made some great connections with local clinics that should see more people at the meetings. Kaiser is working with us to get us a place to meet in the south bay and we are continuing to secure east bay sites.

Our plans are simple, continue to meet on the second Saturday of each month at rotating location around the bay. We will also build on the relationships we have made with Bay Area heart centers and other support and education groups.

While we are a local focused group, we will also always have our extended online family at the icdsupportgroup.com. That group has members from all over the world and is growing rapidly everyday.

If you have been thinking about joining us for a meeting, this up coming year is the time to do it. Hope to see you soon and Happy New Year to the wired and the un-wired alike.
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Monday, December 15, 2008

So, what is your group going to be?

Over the past year, we have been asked this quite a bit. It always sort of throws me. We didn’t really start this group with a grand plan. We were really just a few people going through the same thing that wanted to get together and talk.

That first meeting was just supposed to be for lunch, but three hours later, we finally parted ways. We had so much to talk about and it just felt good to talk to people going through the same thing. I think we knew then that we were on to something. Back then we couldn’t find any groups for ICD patients. So, after finding each other in an online forum, we decided to start our own.

Since then we have found many great people, some other groups and have gotten lots of support from clinics and hospitals in the area. But still the question keeps coming up, what are we going to be? We discussed it at a few of our meeting with no real decision. But this weekend, at our December meeting, we finally came to agreement.

It was funny how it happened, I asked the question and we began discussing ideas, then suddenly we ended up in several small conversations all talking about what was coming up, what we were going through and what the device companies are developing. Sitting back listening to snippets here and there was amazing. Just then, another member spoke up and pointed out that this is what we want to be… simply a place that anyone can come and talk about anything related to having an ICD.

It sounds so simple, but it just isn’t out there. Other groups have hosted events and have guest speakers to give presentations and doctors will continue to want to talk to us but no one out there is just letting us talk to each other. Every conference and “support” meeting we have found outside of our own spent a good deal of time talking to us about what we are going through. At our meetings, we do quick introductions, get things started with a topic or two and by then, it is a chat session, sometimes to the whole group, sometimes to each other in small groups. But it never fails that we end up spending two or three hours just talking.

As a group, we will also continue to answer email questions or talk on the phone, learn everything we can about this technology and when asked we will visit anyone in the hospital who wants us there. The one thing we have that all the doctors and experts don’t have is real first hand knowledge of what it feels like to live with these devises and we are happy to share it… or just listen while a new member talks.

That is where our group stands out. We are just going to be a place people can come to talk.
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Sunday, December 7, 2008

Stanford — Patient ICD Day Report

Sorry I’ve been slow to post this. But here it is. Jennifer McNulty was kind enough to let us post her very detailed notes and fabulous report on last month’s Stanford Patient ICD Day. Thank you so much Jennifer! We really appreciate it.
–Hugo

(PS: Jennifer notes that this report has been reviewed by Drs. Sears, Hsia, Vagelos, and Linda Ottoboni of Stanford.)

Patient ICD Day offers strategies for coping with psychological burdens of heart disease

For the first time in history, patients are living with heart disease, presenting both a privilege and a burden, particularly for about 95,000 patients who are living with an Implantable Cardioverter Defibrillator (ICD).

That was the picture painted Friday, during a Stanford Patient ICD Day that drew about 125 people to the Sheraton Hotel in Palo Alto, where they heard from medical experts, an ICD patient, and from Dr. Samuel Sears, the leading expert on the psychological aspects of living with an ICD.

The first speaker of the day, Sears discussed the "special knowledge" ICD patients gain through hardship.

"You have some unique stressors. There’s universal understanding that heart problems can be scary," said Sears, a nationally recognized expert in the psychological needs of ICD patients. "Those fear factors can play into your thoughts. It requires some psychological fitness training."

Experiencing shock distinguishes ICD patients from other patients, and it is "universally stressful," acknowledged Sears.

Sears expressed deep respect and admiration for ICD patients. "I have a tremendous window on your life," said Sears, a professor of health psychology at East Carolina University in Greenville, North Carolina. "You’re the first generation to have to live with heart disease."

The television show Survivor is popular, he said, because viewers get a front-row seat to watch people cope with adversity. "But the real survivors are in this room," he said. "You’ve overcome threats and challenges. You’re the ones who’ve earned the show’s motto—‘outwit, outplay, outlast.’"

Sears and other speakers emphasized the life-saving nature of ICDs, which numerous studies confirm are the most successful treatment for patients suffering arrhythmias. Yet life with an ICD presents unique challenges that require adjustments, said Sears, who discussed his work helping patients make the shift "from victimhood to survivorship."

The ICD is a "magnificent invention that saves lives better than anything else we have, and one of the challenges is to believe in the device," he said. "It’s a modern-day challenge. You’re the first generation trying to do it."

"Coping requires a menu of strategies—there’s no formula," said Sears, noting that the "more strategies means more success."

ICD patients who adopt stress-management strategies enjoy clear benefits, including lower anxiety, said Sears, whose most recent research results were published in the July 2007 issue of PACE.

"My purpose today is to increase your confidence in your ICD," said Sears, who challenged patients to "add one new strategy" that will help them achieve a high quality of life.

Sears described his role as a patient advocate by saying he helps people "encounter the threats of heart disease" and sort through what they need to change, what they need to accept, and "to try not to mix up the piles."

Heart disease "takes some things away from you," including your innocence about the health care system, said Sears. Living with an ICD forces patients to make changes and ties them to a regimen of medications, doctor appointments, dietary awareness, and specific strategies designed to manage arrhythmias.

Those suffering from what Sears described as a "victim" mindset tend to focus on what they’ve lost. "They emphasize how difficult it is, their desire to go back to life the way it was before their illness," said Sears, adding that they also feel walled off from others who they’re certain can’t understand what they’re going through.

By contrast, patients who make the shift to survival emphasize a positive, future-oriented outlook, said Sears. "They say, ‘I don’t want to lose any more,’" said Sears. "They engage others in their quest."

Yet Sears acknowledged that "nobody can be a survivor every minute of every day."

"I’m okay with negative emotions. They’re part of the process," he said, as long as patients remain on a positive trajectory.

Grieving one’s losses is part of moving toward acceptance and cultivating a positive attitude about life, said Sears, who encouraged patients to identify the precious—and often fleeting—moments that make them grateful to be alive.

"What are the moments you’re glad to be here? What are those moments for you, and who in your life is there with you? Recognizing the value of those moments—that’s the special knowledge," said Sears.

Identifying one’s "lifelines" is another step toward survival, according to Sears. Lifelines may include a patient’s health care team, family members, and a support group.

Referring to another television show, Who Wants to Be a Millionaire?, Sears emphasized the importance of multiple lifelines. "Most of you have one perfect lifeline—a spouse, partner, loved one, parent, or adult child, but to be on the show, you have to have five lifelines," said Sears. Patients need three or more people with whom to share their emotions, he said.

"I know three people is a lot," said Sears, quipping that he couldn’t find three people to help him move a couch recently. But the challenge is to be "more deliberate about providing and receiving support."

Similarly, Sears urged patients to figure out what they love to do and "build it into your life. Quality of life is an achievement, not an entitlement."

Activities of pleasure, mastery, and responsibility can be rewarding, distracting, and replenishing—although they are not necessarily how we spend our time.

"Coping with heart disease can lead you to be disengaged," said Sears, who urged patients to reengage with people and activities that matter to them. "Disengaging stacks the deck against you for quality of life," he said, noting that often people aren’t sure what they like to do.

"No amount of medical care can tell you that, but knowledge is power," said Sears. "Know your condition and know your device. Many patients tell us they feel privileged to be around this device, but it’s also intimidating. The more you learn, the more confident you become."

Sears urged ICD patients to get to know their health care team, the manufacturer of their device and its capabilities, and to seek emotional comfort from other patients, support groups, and web sites.

One of the most common side effects for ICD patients is second-guessing their decision to have the device implanted, said Sears. "It’s a leap of faith," he said. But studies comparing the outcomes of ICD patients and those whose arrhythmias are treated with medication are definitive: "Devices save lives better than medication," said Sears. "That knowledge builds confidence."

Quality of life is at least as good for patients with ICDs as for those whose conditions are managed only with medication, said Sears, who urged patients to seek the information and stress-management strategies that will give them the confidence to live their lives to the fullest.

ICD patients face ever-present reminders of their own mortality, from the device itself and the potential of being shocked to the actual experience of being shocked. Such reminders can produce fury and resentment, as they did for one patient Sears described. That patient eventually made peace with his situation and came to experience such reminders as "love reminders" that help reinforce his will to live.

Stress-management strategies include deep breathing, various relaxation techniques, imagery, and focusing on life’s special moments. "And they really are just moments," he said. "It’s those moments that matter, that make taking your medicine and going to doctor appointments worth it."

Linda Ottoboni, the arrhythmia nursing clinical coordinator at Stanford University, echoed Sears’s remarks when she introduced the session called "Surviving Therapy and Confronting One’s Mortality." While health care providers view each successful shock as cause for celebration, the experience of being shocked makes patients feel acutely vulnerable. "It’s the elephant that sits in the room," she said.

A patient’s perspective

The patient’s perspective was presented by Hugo Campos, 42, who described his own journey "from being a healthy person to dealing with cardiomyopathy and having an ICD," which included depression, anxiety, and terror.

Campos has hypertrophic cardiomyopathy (HCM). He received an ICD last November and describes his approach to "living with adversity" as proactive. "I’m crazy about learning as much as I can," he said. But it hasn’t always been that way.

Following fainting episodes at age 11 and age 37, and years of frequent heart palpitations, Campos was misdiagnosed twice—first with vasovagal syncopy and then with mitral valve prolapse. When he was ultimately diagnosed with hypertrophic cardiomyopathy, his doctor reassured him that it was "not the dangerous form." But a third fainting episode, at age 40, scared him. Campos turned to the Internet, where he learned about the Hypertrophic Cardiomyopathy Center at Stanford University.

"That’s when I learned that I had three of five risk factors for sudden cardiac arrest," recalled Campos, whose doctors recommended an ICD. "I had three days to research the three manufacturers of ICDs. I wanted to be a stakeholder."

Following the implant, Campos was devastated. "I went home to depression and anxiety, which I was completely unprepared for," he said. Waking up in tears at night, Campos recalled touching his chest, feeling the ICD, and asking himself what he'd allowed to be done. "It was awful," he recalled.

By communicating with other ICD patients, Campos realized that his feelings were common—"the universal reaction to the implant." Yet only three pages of the 130-page book published by ICD manufacturer Medtronic were devoted to the patient’s emotional adjustment, and that was limited to descriptions of the ICD as a "guardian angel."

"It would have helped to know it was okay to be frightened—about the device and the reason we have it," said Campos. "We all feel this way."

For Campos, an active member of the Bay Area ICD User Group, seeking information and support has helped him come to terms with the ICD. "It’s what works for me. It is how I cope," he said. "I just need a lot of information and knowledge to put me at ease."

Patting his chest, Campos said, "I’m taking this to the grave. It’s a matter of survival and commitment. Every time I feel it, it reminds me how serious I have to be about this. All I want is to be able to live a good life as well as I can, despite adversity."

The Bay Area ICD User Group meets every month on the second Saturday of the month. Campos’s presentation is available online.

During the discussion of mortality, Sears mentioned an article in the October 2008 edition of the Journal of the American Medical Association. The study, which explored whether it "help or hurt" to discuss death with patients, concluded there’s no evidence of harm—and some indication that patients experience more confidence, improved quality of life, and less invasive treatments if mortality is discussed, he said.

The statistics regarding sudden cardiac arrest (SCA) make a compelling case for ICDs, according to Sears: Without an ICD, only 5 percent of patients survive SCA; nearly 450,000 patients die each year. "Part of adjusting to heart disease is to not really think much about this part of the story," said Sears, who showed clips from a television program that aired this fall, highlighting the choices of two heart patients: One had an ICD implanted after suffering cardiac arrest, and the other chose to forego the procedure. He died the day after the interview was filmed.

Several ICD patients in the audience described their own experiences, including one man who has survived melanoma, lymphoma, two heart attacks and now has an ICD. Commiserating, Sears spoke directly to the man: "The truth is this is just flat hard. You’ve had things taken away. Very generally, when we lose things, there’s depression, the grief of loss, whereas anxiety is the fear of loss." Encouraging the man to engage his mind as actively as possible, Sears urged him to shift gears, use different strategies, surround himself with "good people," and be tolerant of all of his emotions.

Responding to an audience question about the appropriateness of ICDs for older patients, Sears said emphatically, "Age is not a reason not to get one." A forthcoming journal article presents compelling data on the benefits of ICDs for patients between in their 70s, 80s, and 90s, he said. An 86-year-old woman in the audience, diagnosed with cardiomyopathy 20 years ago, said she had a defibrillator implanted at age 83. "I’m still dancing," she said.

Minimizing therapy

In other presentations, Henry Hsia, an associate professor of cardiovascular medicine at Stanford University, discussed implant techniques and ICD therapy. Heart failure is on the rise and the relative risk of rhythm-related death is greater among ambulatory patients who are "relatively healthy" and living with cardiac dysfunction compared to those with severe heart-failure symptoms. Patients with ICDs represent a "relatively tiny" portion of the population that would benefit from prophylactic ICD protection, he said.

Hsia reiterated the life-saving role played by ICDs and emphasized their value compared to patients whose conditions are treated only with medication. He noted their relative cost-effectiveness, as well.

In a second talk, about minimizing ICD therapy, Hsia described the configuration of the devices and their role in the treatment of patients suffering from heart arrhythmias. Patients describe the experience of being shocked differently, from "discomfort" to "a kick in the chest," he said.

Minimizing therapy requires a three-pronged approach: Device-related strategies include monitoring leads and programming the ICD to deliver appropriate pacing and shocks, if necessary; arrhythmia-related strategies are designed to minimize the recurrence of heart rhythms that inappropriately trigger the ICD; and patient-related strategies focus on treating the underlying condition, whether the primary issue is a structural problem or an electrolyte problem.

Optimizing ICD programming can be daunting, noted Hsia. "We utilize probably only 30 percent of the available features," he said.

Optimizing medication to treat the underlying disease is important. "Amiodarone and beta blockers are the best combination to avoid shocks, but they might increase the energy required," he noted.

Surgical ablation can be a "tricky" but highly effective treatment, but it is very complex, said Hsia. "It’s a big surgery with significant risk," he said, noting that the technique was developed before the advent of defibrillators and not many surgeons perform the procedure. Catheter ablation is an alternative strategy, he said.

Optimizing cardiac function

Optimizing cardiac function was the topic of a talk by Randy Vagelos, a professor of medicine and medical director of the cardiac care unit at Stanford. About 5 million people in this country have congestive heart failure (CHF), an affliction that affects men and women in equal numbers, he said. About 550,000 new cases are reported each year; 10 out of every 1,000 patients are younger than 65 years old. CHF represents the single largest expense for Medicare, noted Vagelos. Only 4,000 patients receive a heart transplant each year.

Soaring rates of heart failure are attributable to a "perfect storm" of conditions: People are living longer, more sedentary, more overweight, and suffer from high rates of high blood pressure, diabetes, and left ventricular hypertrophy (LVH), said Vagelos.

LVH, a thickening of the wall of the left ventricle, predicts the onset of heart failure later in life, he said. Because LVH is correlated with high blood pressure, controlling blood pressure at a young age is key. "One heart attack increases the likelihood of heart failure subsequently," he noted.

Yet many patients don’t have symptoms, said Vagelos, noting a study that found that up to 70 percent of patients' conditions went undetected.

One study of the causes of hospital readmission for CHF patients found that nearly 50 percent of readmissions were attributed to dietary noncompliance (24 percent) or prescription noncompliance (24 percent), said Vagelos. "This is a real target for health care systems," he said. Other causes included failure to seek care (19 percent) and inappropriate medication (16 percent).

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