Pacemakers are small electrically charged medical devices implanted by a surgeon in the chest or abdomen or under the skin to help managing irregular heartbeats and heart rhythms called arrhythmias which occurs either when the heart beats too fast or too slow.
Sinus node is our natural pacemaker that is located in the upper right chamber of the heart sending electrical impulses to make our heart beat.A pacemaker takes the role of sinus node artificially when sinus node is not working properly and sends Electrical impulses to stimulate our heart to contract and produce heartbeats.Pacemakers work mostly when are needed as per the heart condition demands and Some send out impulses all the time which is known as fixed rate.

Heart Specialist

Pacemakers do not give an electrical shock to our hearts and are completely safe.They have two parts,one pulse generator which contains the battery and electronics controlling our heart and the other has one or more leads which are small wires running from the pulse generator to our heart.Pacemakers are needed to regulate and control heart rhythms and heart beats and treat tachycardia when the heart beats too fast or bradycardia when the heart beats too slow.Biventricular pacemakers are ones that make both sides of the heart beat in sync and are required in severe heart failure cases.

Pacemakers are used to control problems pertaining to heart failures,heart surgeries and heart attacks.They are also used to record and track heartbeats and all pacemakers are not permanently fixed, some are used during surgeries and medication overdose which slows down our heart.
Pacemakers are implanted by surgeons and the operation takes 1-2 hours and they are mostly placed under the collarbone. They weigh as less as 20-50grams and are smaller than a matchbox.Pacemakers have one lead single chamber pacemaker,two leads called dual chamber pacemaker and biventricular pacemakers.several tests are done before placing a pacemaker.ECG or echocardiogram which uses sound waves is used by doctors to measure the size and thickness of heart muscles, they place sensors on the skin which measures the electrical signals. A wearable device tracking our heart rhythm for many hours is Holter monitoring and stress tests are done to track heart rate while exercising.
Like other surgeries there are some complications associated with surgical installation of pacemakers. With regular follow ups with the doctor we can minimize life threateningrisks. Modern pacemakers are not as sensitive as the old ones to electrical devices, but care should be taken to avoid causing interference with pacemaker.Mobile phones,MP3 players should not be placed in shirt pockets, exposure to metal detectors and standing near microwaves or high- voltage transformers may affect the functioning of pacemakers.

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