Inserting a pacemaker doesn't require open-heart surgery and most people can be released immediately after the insertion. The doctor applies a local anesthetic and numbing medication on the part of the chest where they will make an incision. The incision is small and creates a "pocket" under the skin for the pacemaker, which the surgeon implants. Then, he tests the lead,s and inserts them into a vein. The doctor uses an x-ray machine to see where to place the leads, which he then connects to the pacemaker before programming the device. The procedure generally takes anywhere from one to five hours. After insertion, some patients may notice a slight bump under the skin.

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