Cardiology · Electrophysiology & Devices

Pacemaker Implantation

A small device that never lets your heart beat too slowly

Also known as: Permanent pacemaker implantation · PPI · PPM · pacemaker surgery · pacemaker operation · dual-chamber pacemaker · leadless pacemaker · conduction system pacing · cardiac pacing

Medically reviewed by Dr Kunal Ajay Patankar, DrNB (Cardiology) · August 2026

What it is

Your heart runs on its own electricity. A small patch of tissue at the top — the sinus node — generates a beat around sixty to a hundred times a minute, and a set of natural cables carries that signal down through a junction box (the AV node) to the pumping chambers below. Everything about how you feel at rest and on a staircase depends on that system firing reliably and speeding up when you need it. Age, scarring after a heart attack, some medicines and certain inherited conditions can wear it out. The generator itself may slow or pause; or the signal may set off correctly and be blocked on the way down. Either way the pumping chambers beat too seldom, too little blood reaches the brain, and you feel dizzy, exhausted, or you black out without warning.

A pacemaker is the standby generator for that system. The device sits under the skin below the collarbone, and one or two soft insulated leads run from it through a vein into the heart. Through those leads it watches every single beat. When your own rhythm is doing its job it does nothing at all — it simply listens. The moment the rate falls below the level we have set for you, or a beat fails to arrive, it delivers an impulse far too small to feel and the chamber contracts. That is the whole of it: not a replacement for your heart's electrics, but a guarantee that the lights never go out.

It is worth being equally clear about what it is not. A pacemaker sets a floor, not a ceiling — it stops your heart going too slow and does nothing about a heart going too fast, which is a different problem needing different treatment. It does not strengthen a weak pump, does not open a blocked artery, does not prevent a heart attack or a stroke, and does not cure atrial fibrillation. If your breathlessness is coming from a weak heart muscle rather than a slow rate, a pacemaker will not lift it. Where slowness genuinely is the limit, the change can be immediate and complete — and knowing which of those two situations you are in is the entire purpose of the tests below.

Who it's for

  • Complete (third-degree) or advanced heart block — the electrical signal failing to reach the pumping chambers
  • Sick sinus syndrome — the heart's own pacemaker firing too slowly, or pausing
  • Blackouts or near-faints traced to a slow rhythm or to long pauses on a monitor
  • Atrial fibrillation with a heart rate that stays persistently slow
  • Tachy-brady syndrome — a rhythm that swings between too fast and too slow, where treating the fast half would make the slow half dangerous
  • A heart rate that fails to rise with exertion (chronotropic incompetence), limiting what you can do
  • A rate-slowing medicine you genuinely need and cannot stop
  • Heart block that persists after a heart attack, after valve surgery, or after TAVR

Signs you might need it

  • Blackouts or fainting, often with little or no warning beforehand
  • Near-faints — sudden dizziness, a grey-out, or having to sit down quickly
  • Breathlessness or exhaustion on mild effort, walking a fraction of what you used to manage
  • A pulse that stays slow at rest and does not pick up when you climb stairs
  • Falls, confusion or memory lapses in an older person, often put down to ageing
  • Chest discomfort, or swelling of the ankles, when the rate is very slow
  • Unexplained tiredness that came on over months rather than days
  • Some people feel nothing at all — the block is found on an ECG done for something else entirely, and that is a common and legitimate route to a pacemaker

How we confirm you need it

  • ECG — the single most important test; it shows whether the rhythm is slow, where the block sits, and how urgent it is
  • Holter or extended monitoring, from twenty-four hours to two weeks — catches pauses and slow runs that a single ECG in clinic will miss
  • An implantable loop recorder — a matchstick-sized monitor under the skin that records for up to three years, for blackouts that are rare and still unexplained
  • Exercise testing — shows whether your heart rate rises appropriately with effort, which a resting ECG cannot tell us
  • Echocardiography — measures the pumping strength and looks for a structural cause; it also influences which kind of pacing suits you
  • Blood tests — potassium, thyroid and kidney function, since correctable abnormalities can imitate this exactly
  • A careful review of your medicines — beta blockers, ivabradine, digoxin and several rhythm drugs slow the heart, and stopping one is sometimes the whole answer
  • An electrophysiology study, occasionally, when your symptoms and your ECG do not agree with each other

How it happens, step by step

1

Preparation and anaesthesia

An antibiotic is given, and the skin below the collarbone is numbed thoroughly. You are awake but sedated and drowsy — what you feel is pressure and movement rather than pain. Most implants take about an hour, sometimes ninety minutes.

2

Reaching the vein

A small incision is made below the collarbone and the leads are passed into the vein running beneath it. Where the anatomy allows, the cephalic vein is used and entered directly, which avoids the small risk of a punctured lung and is gentler on the lead over the years.

3

Placing the leads

Under X-ray guidance, each soft insulated lead is guided through the vein into the heart: one to the right ventricle, and for a dual-chamber device a second to the right atrium. Where a lot of pacing is expected, the ventricular lead may instead be placed on the heart's own conduction system, so the beat travels down the natural wiring — this is discussed with you beforehand.

4

Testing every lead

Each lead is measured for how little energy it needs to pace, how clearly it reads your own beats, and its electrical resistance. This is the quiet, unglamorous part of the procedure, and it is what decides whether the device serves you well for a decade rather than needing attention in a year.

5

The pocket and connection

A small pocket is made under the skin below the collarbone, the leads are connected to the device, and it is settled in. On the day it is a little tender; within weeks the outline becomes something you stop noticing.

6

Closing and programming

The wound is closed with stitches that dissolve, and the device is programmed wirelessly to your particular rhythm problem before you leave the lab. A chest X-ray confirms the lead positions before you go home.

Inside a real procedure

Real, de-identified views from Dr Kunal Patankar's own cases — shared so you can see what this actually looks like.

The ventricular lead in position in the right ventricle — the chamber that does the pumpingDr Kunal Patankar — de-identified case
The atrial lead being shaped and settled into the right atrium, above the ventricular lead already in placeDr Kunal Patankar — de-identified case
The finished system — both leads running back to the pacemaker, which sits in a pocket under the skin below the collarboneDr Kunal Patankar — de-identified case

The benefits

  • Blackouts and near-faints from a slow rhythm usually stop altogether, and the change is often immediate
  • Stamina and breathlessness improve where slowness was genuinely the limit — stairs, walking, ordinary work
  • It works only on demand: while your own rhythm is adequate the device does nothing but watch
  • Implanted through a vein under local anaesthesia — no opening of the chest, and home the next day in most cases
  • Lets you keep taking a rate-slowing medicine you genuinely need, instead of choosing between the drug and the symptom
  • Removes the fall risk that comes with unheralded blackouts, which in an older person is often the most valuable part of it
  • Ten to fifteen years from a battery; the replacement reuses the same pocket and leaves healthy leads in place
  • Remote monitoring, where the device supports it, means much of the follow-up happens without a hospital visit

The risks

  • Bruising or a blood collection in the device pocket — more likely if you take blood thinners, which is why the plan for them is worked out in advance
  • Infection of the pocket or the lead: uncommon, but serious, because it usually means removing the entire system and re-implanting later
  • A punctured lung (pneumothorax) while entering the vein — uncommon, occasionally needing a small drain for a few days
  • A lead moving out of position in the first weeks and needing repositioning — this is the reason for the arm restrictions, and the restrictions genuinely work
  • Rarely, a lead irritating or puncturing the thin wall of the heart, which can let fluid collect around it
  • Narrowing or clotting of the vein the leads pass through, which matters mainly if further leads are ever needed
  • Pacing from the right ventricle year after year weakens the pump in a minority of people who pace most of the time — this is called pacing-induced cardiomyopathy. It is why we estimate how much pacing you are likely to need before choosing where the lead goes, and why we keep measuring the pumping strength afterwards.
  • A lifetime with a pacemaker means further procedures: leads and batteries do not last forever, and each replacement carries its own small risk
  • A small radiation dose from the X-ray guidance, as with any fluoroscopy-guided procedure

Alternatives we'll discuss

Treating the cause, and waiting

Not every slow heart needs a permanent device. A beta blocker or another rate-slowing drug, a high potassium level, an underactive thyroid, an infection, or the days immediately after a heart attack can all produce a slow rhythm that recovers once the cause is dealt with. Where you need cover in the meantime, a temporary pacing wire holds the rate up safely while we find out. Ruling this out first is what prevents an unnecessary implant and the lifetime of leads and battery changes that follows one.

Single-chamber or dual-chamber

Less an alternative than a real choice inside the decision. A single-chamber device paces one chamber through one lead; a dual-chamber device uses two, keeping the upper and lower chambers beating in the correct order, which most people feel as better stamina. The exception is permanent atrial fibrillation, where the upper chambers no longer beat in an organised way and a second lead has nothing useful to do. Fewer leads also means fewer things that can fail later, so this is decided on your rhythm rather than on the assumption that more is better.

Conduction system pacing

Instead of pacing the right ventricle directly, the lead is placed onto the heart's own conduction system — the natural wiring — so the impulse travels down the route it was meant to take and both sides contract together. We offer this, and it is the option we consider seriously when a lot of pacing is expected or the pump is already not strong, because it is designed to avoid the pacing-induced weakening described above. What it has not yet been shown to do is help you live longer than conventional pacing; the trials testing that are still running. It is also a newer technique, so we have fewer decades of data on how those leads behave twenty years on. We will tell you where you sit between those two facts.

Leadless pacemaker

A self-contained capsule about the size of a large vitamin tablet, delivered through a vein in the leg and fixed directly inside the heart. There is no pocket under the skin and no lead running through a vein, so the two commonest long-term problems with a conventional system simply do not arise, and nothing shows on the chest. We implant these. The trade-offs are real: most leadless devices pace one chamber only, though dual-chamber systems now exist; the delivery system is larger at the leg vein; and a capsule fixed inside the heart is harder to remove years later than a lead is. It suits some people very well and is not the right default for everyone.

CRT (biventricular) pacing

If the heart is not only slow but also weak and contracting out of sync — a broad QRS on the ECG with a low ejection fraction — a resynchronisation device paces both sides to re-time the beat, and treats the heart failure rather than only the rhythm. Whether you need this is decided on your ECG and echo, not by preference, and it is a different conversation from a straightforward pacemaker.

Choosing not to have one

This is a legitimate decision and not a failure to be talked out of. Where another illness is more likely to determine how long and how well you live, an implant can add a procedure without adding good time. We will say so plainly if that is what we think. What we will also say plainly is when we think the risk of an unheralded blackout is high enough that declining is genuinely dangerous — and then the decision is still yours.

Preparing for it

  • Blood tests and a clear plan for any blood thinner — we tell you exactly which to stop, which to continue, and when
  • An antibiotic is given just before the incision; any skin infection or wound near the site is treated first
  • Nothing to eat from midnight as instructed; take your morning medicines only if we have told you to
  • Tell us your dominant hand, your work and the sports you play — it helps decide which side the device goes
  • Say if a bra strap, a seatbelt or a rifle butt crosses one shoulder; the placement can be adjusted before, not after
  • Bring records of any previous pacing, line or device procedure, and a full list of your medicines
  • Plan a night in hospital, and arrange for someone to bring you home
  • Ask us now about anything you are worried about — MRI scans, flying, your job, lifting a grandchild. It is easier to plan around these before the implant than to be surprised by them afterwards.

Recovery

  • Home the next day in most cases, after a chest X-ray and a full device check
  • Keep the arm on that side below shoulder level for about four to six weeks — no reaching overhead, no heavy lifting, no throwing. This is what keeps the leads where we put them.
  • Use the arm normally below shoulder height. A shoulder held completely still for weeks stiffens, and a frozen shoulder is harder to undo than the restriction was to follow.
  • Keep the wound dry until it heals; call us for redness, swelling, discharge, fever or increasing pain
  • A check at about six weeks, then every six to twelve months. Where your device supports remote monitoring, much of that happens from your home; otherwise it is a short clinic visit.
  • Carry your device identification card everywhere, and show it before any scan, surgery or airport screening
  • Driving usually resumes after about a week for an ordinary licence — we give you a date rather than a vague 'soon'

Results & durability

  • For blackouts caused by a slow rhythm, a pacemaker is close to definitive — they usually stop and stay stopped
  • Stamina improves where a slow rate was genuinely the limit; where breathlessness had another cause, it will not, and we tell you which we expect beforehand
  • Batteries commonly last ten to fifteen years, longer if the device rarely needs to pace; the generator is then replaced through the same pocket in a shorter procedure
  • Leads are the part that eventually wears out, and most last well beyond a decade; a lead that fails is usually managed by adding a new one rather than removing the old
  • We track the proportion of beats your device actually paces. A high pacing burden is what prompts us to re-check the pumping strength, and occasionally to change the pacing approach.
  • Where the device supports remote monitoring, a lead or battery problem is usually flagged before you have noticed anything at all

Cost & insurance

What affects the cost

  • The device itself is by far the largest component, and the type drives it: single-chamber, dual-chamber, rate-responsive, MRI-conditional and leadless models differ substantially in price
  • Conduction system pacing needs a particular lead and delivery sheath, which adds to the device cost
  • Hospital room category and length of stay add to it, as does the monitoring and imaging workup that established the indication
  • Many private insurance policies cover implantable devices, though some apply implant sub-limits or waiting periods; government schemes vary in what they include
  • Budget for the long tail as well as the implant — follow-up checks, remote monitoring where used, and an eventual battery change
  • We check what your specific policy covers before anything is scheduled; for a figure that matches your case, please ask us rather than rely on prices published online

Common questions

Am I awake during the implant? Does it hurt?+

You are awake but sedated. The area is numbed thoroughly, so what you feel is pressure and tugging rather than pain, and the sedation blurs most of it. It usually takes about an hour. General anaesthesia is not normally needed, which is part of why you can go home the next day.

Will a pacemaker cure my heart problem?+

No, and it is worth hearing this plainly. A pacemaker treats one thing: a heart that beats too slowly. It does not strengthen a weak pump, does not unblock an artery, does not prevent a heart attack or a stroke, and does not cure atrial fibrillation. If breathlessness is coming from a weak heart rather than a slow one, a pacemaker will not fix it. Your medicines and the rest of your heart care continue exactly as before.

Will I feel it pacing?+

Almost never. The impulses are far too small to feel. What people usually notice is the absence of something — the blackouts stop, the dizziness goes, stairs become possible again. Between beats it makes no sensation at all. A few people feel occasional hiccup-like twitching if a lead sits near the diaphragm, and that is corrected by reprogramming.

Can I use a mobile phone, an induction stove, or walk through airport security?+

Yes to all three, with small precautions. Use the phone at the ear opposite the device and keep it out of a breast pocket over it. Stand an arm's length from an induction hob rather than leaning across it. Microwaves, televisions, computers and household appliances are entirely safe. At the airport, show your device card, walk through steadily without lingering, and ask for a hand search rather than a hand-held wand held over the device. Arc welding, industrial magnets and high-power electrical equipment are the genuine ones to avoid.

Can I still have an MRI scan?+

Usually yes. Most devices and leads implanted today are MRI-conditional, meaning a scan can be done safely under defined conditions — the device reprogrammed beforehand and monitored during the scan. Tell every radiology department that you have a pacemaker and bring your card; never assume they already know. If you have older leads, we will tell you plainly what is and is not possible.

How long does the battery last, and what happens then?+

Commonly ten to fifteen years, and longer if your own rhythm does most of the work and the device rarely paces. It never simply runs out without warning — routine checks track the level and predict it months to years ahead. When the time comes, the generator is replaced through the same pocket in a shorter, simpler procedure, and healthy leads are left exactly where they are.

When can I drive, lift things, exercise and go back to work?+

Driving on an ordinary licence usually resumes after about a week, and we give you a date; commercial and heavy-vehicle licensing has its own rules that we will go through with you. Lifting and overhead work wait four to six weeks, until the leads have anchored. After that, walking, swimming, gym work and ordinary sport are actively encouraged. Contact sports and heavy overhead work on the device side are what we discuss case by case.

Will it show, and which side can I sleep on?+

In a slim person a small outline is visible below the collarbone; in most people it is noticeable only if you look for it. The scar fades to a thin line. Once healing is complete you can sleep on either side — you will not damage it, and most people find their own comfortable position within a few weeks. If it sits somewhere that rubs against a bra strap or a seatbelt, tell us before the implant, because the placement can be adjusted.

Am I too old for a pacemaker?+

Age by itself is rarely the deciding factor here, and this is where a pacemaker differs from most heart procedures. It is a short implant under local anaesthesia that stops blackouts and falls — and in an older person, a fall is often the thing that changes life most. Pacemakers are routinely implanted in people in their eighties and nineties. What we weigh is not your age but whether the slow rhythm is genuinely what is limiting you.

Can medicine fix a slow heart instead?+

There is no tablet that reliably speeds up a slow heart over the long term. Medicines can lift the rate briefly in an emergency, and stopping a rate-slowing drug sometimes solves the problem entirely — which is exactly why we review your prescriptions before recommending a device. But where the heart's own wiring has failed, a pacemaker is the only treatment that works, and no medicine substitutes for it.

Will I be dependent on it? What if it fails?+

Some people are pacemaker-dependent, meaning their own rhythm is too slow to manage without it, and many are not — the device simply covers the gaps. Outright failure is very rare, and devices are built to fail safe: batteries deplete slowly and predictably rather than stopping, and checks catch a lead problem long before you feel anything. If you are dependent, we tell you so, and your follow-up is arranged accordingly.

Single-chamber, dual-chamber or leadless — how is that decided?+

By your rhythm, not by preference. If the atria are in permanent atrial fibrillation there is nothing useful for an atrial lead to do, so a single-chamber device is the right answer. If the atria still beat normally, a dual-chamber device keeps the top and bottom chambers working in the correct order, which most people feel. A leadless device suits someone in whom a pocket or a vein is the problem — poor veins, high infection risk, or a need to keep the chest wall clear. We explain which of these applies to you and why.

Wondering if Pacemaker Implantation is right for you?

Every heart is different. Bring your reports and questions — we'll map your options together.