Heart Health

Fixing Heart Valve Leaks Without Open Heart Surgery

June 27, 2019

Fixing Heart Valve Leaks Without Open Heart Surgery

想象一下修复漏水阀门的微小紧固件。现在想象一下,小紧固件被放在你的心里。

A breakthrough innovation using such a device is making it possible for more people with something called mitral valve regurgitation to be treated with a minimally invasive procedure – rather than undergo open heart surgery to repair or replace the valve.

二尖瓣如何工作?

You probably know your heart pumps blood through its chambers and into the body. But did you know heart valves keep blood flowing in the right direction? That’s what the mitral valve does. It moves oxygen-rich blood from the left atrium into the left ventricle. The mitral valve’s two leaflets open and close quickly to allow blood to move forward while preventing it from escaping backward into the left atrium.

Why Does the Heart Valve Leak?

Sometimes the leaflets don’t close completely. This can occur when special chords which attach the leaflets to your heart muscle stretch or become ruptured. When that happens, the valve leaks and lets blood flow backward. This is calledmitral regurgitation. It can be mild to severe and symptoms include:

  • 热门杂音
  • Shortness of breath
  • 疲劳
  • Lightheadedness
  • Cough
  • 心悸
  • 肿胀的脚/脚踝
  • Excessive urination

Sometimes, the mitral valve is pulled apart and leaks from the center. Called secondary mitral regurgitation, this happens in people with atrial fibrillation, heart failure or other heart conditions.

How is the Leaky Heart Valve Fixed?

Treatment options for MR traditionally included medication for mild cases and open heart surgery for more severe MR. More recently, a minimally invasive procedure was developed which involves implanting a special device in the leaky portion of the mitral valve.

It works like this:

  1. A small puncture is made in the femoral artery in the groin
  2. 一根小线被引导到心脏并进入二尖瓣附近的腔室
  3. 特殊装置通过电线输送到阀门
  4. Using imaging technology, the precise location of leakage is determined
  5. The device, which resembles a clip or a staple, is attached to the valve
  6. Leakage is eliminated or minimized

程序的好处

该程序的好处包括较短的住院住宿和提高生活质量,并改善生存,无需接受开放的心脏手术。该装置是2013年FDA批准的FDA,因为初级二尖瓣患者,由于多余的组织,松散或破裂或增厚的传单,阀门的初级缺陷。2019年3月,FDA批准了这种治疗方法,用于患上过高的次级二尖瓣流动患者。这意味着比以往更多的人可以利用这项技术。

Contact a志健康科学家for more information.

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