A pacemaker or implantable defibrillator (ICD) becomes part of your daily life almost immediately after implantation — most people return to nearly all of their normal activities within weeks, with a handful of practical adjustments around driving, certain equipment, and device checks. This page covers what day-to-day life is actually like; for what the device is and how it's implanted, see Procedures & Devices.
The First Few Weeks After Implantation
Expect some soreness and swelling around the device pocket (usually just below the collarbone) for one to two weeks. Your care team will give you specific restrictions during this early healing period — typically avoiding raising the arm on that side above shoulder height and avoiding heavy lifting for about 4-6 weeks, since the leads need time to become securely anchored in place. Most people are back to light daily activities within days, with fuller activity clearance given at a follow-up visit once the pocket has healed.
Driving
- After a pacemaker, most people can resume driving within about a week, once cleared by their care team
- After an ICD, driving restrictions are typically longer — often one to several months, and the specific timeline depends heavily on why the device was placed (whether it was for prevention before any dangerous rhythm occurred, or after one already happened) and your state's specific regulations
- If your ICD delivers a shock, most guidelines recommend not driving for a period afterward (commonly around 1-6 months depending on the circumstances) — ask your care team what applies to your specific situation, since this varies by cause and location
Living With Electronics & Everyday Equipment
Modern pacemakers and ICDs are well-shielded, and most everyday electronics are safe with reasonable precautions:
- Cell phones — safe; a common general precaution is to avoid carrying a phone directly in a shirt pocket over the device for extended periods, though normal use (holding it to your ear) is not a concern
- Airport security — metal detectors and body scanners are safe for the device, though they may detect it; carry your device ID card and inform security staff before screening
- Microwave ovens — safe, contrary to old, outdated concerns
- Induction cooktops — generally recommended to keep a modest distance during use; ask your device team for specific guidance if you have one
- Power tools and strong magnets — large magnets and industrial equipment with strong electromagnetic fields can interact with some devices; ask your device team about any specific equipment used at your job
- MRI scans — many modern devices are labeled "MRI-conditional" and can be scanned safely under a specific protocol, but this must always be confirmed with your device team and the imaging center in advance — never assumed, and always carry your device ID card to appointments
What an ICD Shock Feels Like
An ICD shock is often described as a sudden, hard jolt or kick to the chest — brief but startling. A single shock that corrects a dangerous rhythm and leaves you feeling okay afterward is the device doing exactly what it's designed to do. Call your care team after any shock, even if you feel fine afterward, so they can review what happened. Multiple shocks in a short period, or a shock followed by ongoing symptoms, is different — see the emergency guidance below.
Remote Monitoring & Device Checks
Most modern devices transmit data remotely (via a bedside monitor or an app) to your care team on a regular schedule, checking battery life, lead function, and any recorded heart rhythm events — often catching a problem before you'd notice any symptoms. In-person device checks are still typically scheduled periodically (commonly every 6-12 months) even with remote monitoring in place. Keep your remote monitor plugged in and near where you sleep, and let your team know promptly if you move or your home setup changes.
Battery Life & Generator Replacement
Device batteries typically last 6-15 years depending on the specific device and how much it's used (an ICD delivering frequent therapies uses more battery than one that rarely activates). Your team monitors battery status at every check and will schedule a generator replacement procedure — a simpler procedure than the original implant, since the leads already in place usually don't need to be replaced — well before the battery actually runs low.
Exercise & Physical Activity
Most people can return to a full range of normal physical activity, including exercise, once fully healed. Contact sports or activities with a high risk of direct blows to the device area are usually discussed individually with your care team. Cardiac rehab is often recommended after device implantation, particularly if it was placed for heart failure (see Cardiac Rehab: What to Expect).
When to Call Your Doctor vs. Go to the ER
- A single ICD shock, once you feel stable afterward
- Redness, warmth, drainage, or increasing pain at the device site
- A remote monitoring alert you don't understand
- Multiple ICD shocks in a short period
- A shock followed by chest pain, fainting, or ongoing shortness of breath
- Signs of infection at the device site with fever
Common Questions
Can I ever have an MRI again?
In most cases yes, with a device labeled MRI-conditional and the right protocol — confirm with your device team well before any scan is scheduled, and always carry your device ID card.
Will people be able to see it?
A small, usually barely noticeable bump beneath the skin near the collarbone; clothing typically covers it completely.
How long will this device last?
Most batteries last 6-15 years; your team tracks this closely and plans a replacement well ahead of time.
Can I still hug people or sleep on that side?
Yes, once you've healed from the implant — normal daily contact and sleeping positions are not a concern for a well-healed device.