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2. Pacemaker failure - Wikipedia

   en.wikipedia.org/wiki/Pacemaker_failure

   A pacemaker uses electrical impulses delivered by electrodes in order to contract the heart muscles. [1] Failure of a pacemaker is defined by the requirement of repeat surgical pacemaker-related procedures after the initial implantation. Most implanted pacemakers are dual chambered and have two leads, causing the implantation time to take ...

3. Pacemaker syndrome - Wikipedia

   en.wikipedia.org/wiki/Pacemaker_syndrome

   Symptoms commonly documented in patients history, classified according to cause: [2] [5] [6] [8] [9] Neurological - Dizziness, near syncope, and confusion. Heart failure - Dyspnea, orthopnea, paroxysmal nocturnal dyspnea, and edema. Hypotension - Seizure, mental status change, diaphoresis, and signs of orthostatic hypotension and shock.

4. Lev's disease - Wikipedia

   en.wikipedia.org/wiki/Lev's_disease

   Signs of Lev's disease may include syncope, shortness of breath, dizziness, heart failure, and sudden cardiac death. Signs may begin to appear as an adult. [2] On the other hand, symptoms of Lev's disease may include bradycardia, defects in the cardiac conduction of the His-Purkinje system, widening of the QRS complex, and temporal potentially ...

5. 8 Common Cardiovascular Diseases for Men & How to ... - AOL

   www.aol.com/8-common-cardiovascular-diseases-men...

   Many people with early coronary artery disease don’t have any symptoms. If your heart doesn’t get enough oxygen, you might develop chest pain (angina). ... Heart failure. Heart failure occurs ...

6. Twiddler's syndrome - Wikipedia

   en.wikipedia.org/wiki/Twiddler's_syndrome

   Twiddler's syndrome is a malfunction of a pacemaker due to manipulation of the device and the consequent dislodging of the leads from their intended location. As the leads move, they stop pacing the heart and can cause strange symptoms such as phrenic nerve stimulation resulting in abdominal pulsing or brachial plexus stimulation resulting in rhythmic arm twitching. [1]

7. Heart block - Wikipedia

   en.wikipedia.org/wiki/Heart_block

   SA blocks rarely give severe symptoms, because even if an individual had complete block at this level of the conduction system (which is uncommon), the secondary pacemaker of the heart would be at the AV node, which would fire at 40 to 60 beats a minute, which is enough to retain consciousness in the resting state. However SA block is capable ...