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Chapter 2740 I can only ask her again

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    This results in that when electrical signals pass through the scar area, they can only rely on these cardiomyocytes to support the electrical signal channel.  Just like a ship passing through a waterway with little water, its speed will inevitably become very slow.  It is called conduction block in the electrical conduction of the heart.  Conduction block causes electrical signal confusion and causes cardiac arrhythmia.

    Is it possible to accurately describe the ectopic pacing point that wants to ablate scar tissue and call it an ectopic pacing area?  Yes, there is.

    Medical research has found that the electrical signal channel in scar tissue is as narrow as a strait. In medicine, it is called the isthmus. The isthmus goes around in the scar tissue and is like a maze. The medical word is called the reentry loop. It doesn't matter, the electrical signal will always be there.  There is an exit for those who run out.

    Doctors can wait and find the right exit to fuse it.  Because scars generally cause atrial tachycardia and ventricular tachycardia, this is the exit point. On the one hand, the electrical signal can return to excite the scar, and on the other hand, it can be discharged to the ventricle and atrium, causing cardiac arrhythmia, atrial tachycardia and ventricular tachycardia.

    Theoretically, if the doctor follows the method mentioned above, he should be able to successfully cure the arrhythmia caused by the scar.  Why do doctors think scars are more troublesome?

    The problem is that the reentry loop and exit of scar tissue-related ventricular tachycardia are variable, and this exit changes.  If you eliminate it, it will become another exit next time.  It is conceivable that Dr. Che mistakenly said that finding an ectopic pacing point is a fallacy that cannot be achieved.

    When scar tissue is ablated, the surgical recurrence rate is very scary. Nearly half of the patients will relapse after one year.  As Xie said, the risks during the operation are very high.  When you can't find the focus of the disease, you stimulate the disease and take over in seconds. Your doctor is at a loss and doesn't know how to save the disease, and the patient has no choice but to die.  The intraoperative mortality rate of such an operation is as high as one to three percent, and one to three people die in a hundred people. It is terrifying.

    In order to avoid this high risk, doctors may take another approach.

    "You can consider icd implantation." Director Gao said.

    ICD is a therapeutic device that integrates cardiac pacing and electrical cardioversion. Like a pacemaker, the electrodes are placed in the heart, and the small machine is buried in the patient's body.  Once a malignant arrhythmia occurs in a patient, the machine automatically detects that electrical cardioversion is performed and the heart rate is too low, and pacing is performed directly.  This sounds like a very good thing.  At this time Zhang Si

    "Wouldn't electric defibrillation have no effect on him?" Dr. Che remembered what seemed to be written in the medical record.

    Besides, ICD implantation also requires intraoperative stimulation to search for lesions and discharge electrodes, which can at most reduce the postoperative recurrence rate.  The most fundamental problem is that icd implantation does not cure it.  Student Wei wants to be a surgeon, but if he goes to work with this thing in his body, he will definitely be discriminated against.

    If the doctor has the ability to ablate and cure him, why bother with something that is not a cure?  Zhida Zhixiao&#24378&#29306&#32&#32&#35835&#29306

    By now, the discussion has turned into a dead end.  Dr. Che found that he could only ask the young Dr. Xie again.

    People blame the person who has had great luck and succeeded, regardless of whether you are young or not and lucky or not.

    Doctor Che asked: "Please tell me your specific approach and basis."

    Here Xie Wanying needs to explain the source of her idea: "I used to think that I knew the heart very well through dissection. Until today, I found during the operation that the compensatory thickening of the myocardium is not completely orderly. Scars are difficult to deal with precisely because they are disordered."

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