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Making peace with pacemaker

March 19th, 2014


Making peace with pacemaker

Heart muscle weakness can be caused by many things. Most heart diseases, if left unattended, will eventually lead to heart muscle weakness. The result is the heart can not pump enough blood, causing heart failure in the end.

In the past, when treating heart muscle weakness, doctors would focus on strengthening the heart muscles using medications. There was an idea to use muscles from other parts to help, but it didn’t work in practice. At present, stem cell technique is used at the heart so that the cells grow into healthier heart muscles, but more studies are needed to confirm whether this is really good.

Recently, it was noticed that weak heart muscles not only work less but also not work in synchrony. This is because of the irregular electricity travelling within the heart muscle. When the heart beats (or contracts), blood is pumped to every organs in the body, but due to this condition, blood does not go far because the main heart chamber does not contract work in sync. It’s like two persons rowing a boat at a different pace and direction – not only does the boat go slowly, but the rowers are also more tired.

So an idea was proposed – if the heart could work in sync, it would work more effectively in pumping blood. In the past, we had permanent pacemaker for patients whose heart beat very slowly. It is an electronic device implanted under the skin and linked to the heart to make sure the electricity is in check and the heart does not beat too slow.

Today’s technologies and great doctors have resulted in an even better version of pacemaker which could be linked to various parts of the heart to adjust electricity, making the heart chambers work rhythmically and naturally in synchrony.

Heart failure and heart muscle weakness could lead to pulmonary edema, shock, or even a sudden stop of the heart. In that case, intervention in form of defibrillation, using direct electric current to reset the heart rhythm, is required to bring the person back to life as soon as possible. If left for too long, the chance is very slim. We are talking life-changing minutes or seconds here. Defibrillator and pacemaker are now put together in one device for patients with weak heart muscles.

A patient of mine was about 50 years old and he came to see me because he had  heart failure. He felt tired easily, although in the past he could exercise on a bicycle for an hour everyday. When he came to see me, he could barely walk 10 metres without pausing for breath. Sometimes, he couldn’t lie on his back and some nights he had to sleep sitting upright.  He had had symptoms for a few years.

I found no problem of narrowed coronary arteries at his heart, so I assumed that it could be some virus infection that he had in the past that caused heart muscle weakness. I prescribed some medicines, but he didn’t feel much better. He referred him to have the newer generation of pacemaker or so call CRTD device to help his heart work better. Soon after, his condition improved and he felt much stronger.

The good thing with this device is that it also records the heart’s activities when the person is not in the hospital. I found that his heart had ventricular fibrillation (cardiac arrhythmia) twice, and without the defibrillator, he might not have survived. Ventricular fibrillation could be fatal and almost hundred percent of a time it will not correct by itself. Once I told him about the two should have been deeply incidences, he was over the moon about his luck. He commented, “This device is really worth the money! It has saved my life twice!” Well, it’s only 300,000-400,000 baht, compared to your life. The longer you have it, the more value for money you get. Without this device, you probably wouldn’t have made it to the doctor.

Technologies today can save many lives, but it is only temporary. Nobody lives forever, and death is inevitable. The important thing is not to delay death, but to make sure your living moments are happy.

Prof Nithi Mahanonda is consultant cardiologist and interventionist, Perfect Heart Institute.



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ข้อคิดเห็นทั้งหมดนี้เป็นความคิดเห็นส่วนบุคคลของผู้อ่าน ไม่เกี่ยวข้องกับเจ้าของเว็บไซต์แต่อย่างใด โปรดแสดงความเห็นด้วยความสุภาพ ถ้าเป็นครั้งแรกที่คุณโพสต์แสดงความเห็น อาจจะมีการคัดกรองเนื้อหาได้ การแสดงความคิดเห็นควรอยู่ในประเด็น ห้ามโจมตีใส่ร้ายบุคคลอื่น หรือทำลิงค์ไปยังเว็บไซต์ที่มีเนื้อหาไม่เกี่ยวข้องกัน ผู้ดูแลเว็บไซต์สามารถแก้ไขหรือลบความคิดเห็นได้ทุกกรณี


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