Condition · 1 treatment path
Long QT Syndrome
Long QT syndrome is a disorder of the heart's electrical system in which the heart takes longer than normal to recharge between beats, raising the risk of dangerous rhythm disturbances. It can be inherited or caused by medicines.
Send your imaging + plan. Board-reviewed opinion in 5–10 working days.
- Treatment paths
- 1Treatment paths
- Specialties
- 1Specialties
- Typical severity
- SevereTypical severity
About long qt syndrome
What to know
Many people have no symptoms. Others have fainting, seizures or palpitations, often triggered by exercise, emotion or sudden noise, and in some cases sudden cardiac arrest. Diagnosis is by ECG measurement of the QT interval, exercise or ambulatory monitoring, genetic testing and screening of relatives. Risk varies by genetic type and past symptoms.
Treatment includes avoiding medicines that prolong the QT interval, correcting low potassium or magnesium, and beta-blockers, which are first-line. Some people need a procedure called left cardiac sympathetic denervation. An implantable cardioverter defibrillator (ICD) is used for those who have survived cardiac arrest or remain at high risk despite medicines. Treatment abroad may be considered for ICD implantation or specialist inherited-rhythm care.
Pre-flight workup
Tests to have already done
- ECG tracings showing the corrected QT interval (QTc), including old ECGs and those taken during or after any fainting episode.
- Genetic test results identifying the subtype (such as LQT1, LQT2 or LQT3), which influence triggers and treatment.
- Holter monitor and exercise test results, and records of any documented dangerous rhythm.
- A detailed family history of sudden death, drowning, unexplained accidents or seizures.
- Your complete medicine list, since many drugs lengthen the QT interval, and blood potassium, magnesium and calcium results.
Second opinion
When to get a second look
- You have fainted despite taking a beta-blocker and have not had your treatment reviewed by a heart rhythm specialist.
- A defibrillator has been advised and you want to check that your risk level justifies one.
- The diagnosis was made on a single borderline QT measurement without genetic testing or repeated ECGs.
- Your QT prolongation might be drug-induced and you are unsure which medicines to avoid.
Talking to your doctor
Questions to ask
- What is my QTc, and which subtype of long QT do I have?
- What are my particular triggers, such as exercise, swimming, emotional shock or alarm clocks?
- Which beta-blocker do you recommend, and what happens if I miss a dose?
- Do I need a defibrillator or other treatment such as sympathetic denervation?
- Which common medicines must I avoid?
- Should my relatives be tested?
Outlook
Realistic prognosis
With treatment, most people with long QT syndrome live a full life. Beta-blockers greatly reduce the risk of dangerous rhythms, particularly in LQT1 and LQT2. Risk depends on the subtype, QTc length, past fainting or cardiac arrest, and sex and age. Higher-risk people may need a defibrillator or sympathetic denervation. Lifelong medicine adherence and avoidance of QT-prolonging drugs are essential.
01 · Specialties
Specialties that treat Long
Diagnostic workup
Before you pick a hospital, get the workup right
Picking the right treatment is downstream of a complete diagnosis. Skip steps here and the destination surgeon usually re-orders them anyway — at higher cost and another week on the ground.
- Confirm the diagnosis on imaging or labs
For long qt syndrome, plan on the workup your home doctor would order anyway — typically a recent specialist consult plus the imaging / labs the destination team will need to quote accurately. Anything older than 90 days usually gets re-done.
- See a cardiac surgery specialist locally first
An in-person clinical exam at home — even a single consult — costs little and dramatically improves the destination plan. Bring back: written impression, recommended procedure, surgical-risk class, and any contra-indications.
- Send us the file for a free second opinion
Two surgeons in our medical panel review the workup independently. They tell you whether they'd operate, watch, or refer — even if that means recommending against travel.
- Pick a path with timeline + cost in writing
Once a treatment is the right call, we line up 2–3 hospital options with itemized quotes, surgeon profiles, and a travel timeline. You hold the file — switch hospitals or step away at any point.
03 · Treatment paths
Treatment options
Where to be treated
Long QT Syndrome treatment by destination
04 · FAQ
Common questions about long qt syndrome
Can I exercise or play sport?
This depends on the subtype and treatment. LQT1 is often triggered by exercise, especially swimming, so advice is individual. Many people can still take part in some activity under specialist guidance.
Is Long QT syndrome inherited?
Many types are inherited, with a 50 per cent chance a child of an affected parent carries the variant. Family members should be screened with an ECG and often genetic testing.
Which medicines should I avoid?
Many common drugs, including some antibiotics, antifungals, anti-sickness and psychiatric medicines, can lengthen the QT. Check any new medicine with your doctor or pharmacist and never stop yours without advice.
Clinical context
Working up long qt syndrome properly
A condition like long qt syndrome is rarely well-served by jumping straight to treatment shopping. The sequence below is what a cardiac surgery specialist would expect to see completed — and the absence of any step is the right cue to delay travel decisions.
Diagnostic workup, in sequence
- First-line clinical assessment
History, physical exam, and risk-factor review by a senior generalist or cardiac surgery specialist. Symptoms list, family history, prior workup notes, and current medication list should travel with the patient.
- Standard imaging + labs
Baseline blood work, condition-specific imaging (ultrasound / X-ray / MRI / CT — depending on indication), and ECG / pulmonary function as relevant. Bring digital copies of any prior imaging — saves repeat scans and the cost that goes with them.
- Specialist diagnostic workup
Procedure-specific tests — biopsy, cardiac catheterisation, endoscopy, or genetic / molecular profiling depending on the suspected diagnosis. Done at the centre that will treat, ideally, so results integrate cleanly into the treatment plan.
- Multidisciplinary review (where indicated)
Cancer, complex cardiac, transplant, and rare-disease cases should be reviewed by a multidisciplinary panel — surgical, medical, imaging, and pathology — before any treatment commits. Single-discipline plans for complex disease are a quality red flag.
When to escalate urgently
- Acute worsening of established symptoms — sudden chest pain, shortness of breath at rest, neurological deficit, severe bleeding, persistent high fever.
- Loss of consciousness, severe persistent vomiting, or any focal neurological event.
- Symptoms in the early hours of onset that fit a time-sensitive treatment window (stroke, MI, sepsis) — every hour costs outcome.
- If you are travelling internationally for treatment and develop these symptoms in transit, divert to the nearest emergency department; do not wait to reach the planned destination.
Before you book international travel
- Confirm your specific diagnosis is fully worked up before you commit to a treatment plan abroad. Travelling for the workup is fine; travelling for treatment without the workup done is not.
- Get your case reviewed remotely by the destination centre's team before you book flights — credible international patient programs review imaging + reports before they confirm the surgical plan.
- Bring a digital + physical copy of your full medical record: imaging on USB drive in DICOM format, labs in PDF, current medication list with dosages, allergies, and any prior surgical reports.
- Plan for the post-op rehabilitation phase before you fly — the surgery itself is rarely the bottleneck.
- Confirm that follow-up imaging and any necessary in-person reviews can be done at home — a treatment plan that requires repeat international trips is more burdensome (and more expensive) than the headline procedure.
Methodology and editorial standards
This long qt syndrome overview is written by the editorial team from published Cardiac Surgery sources and lists 1 treatment options offered by hospitals on our network. The page shows its last-updated date. Clinical descriptions are editorial — your treating clinician confirms what's right for your specific case.
- Hospital data. Hospital details are compiled from public sources and hospital websites. Accreditation (JCI, NABH and others) is shown where we hold a record of it. Always ask the hospital for its current certificate.
- Doctor credentials. Qualifications, specialty and bio come from the doctor's hospital profile. Licence is checked against the national medical-council register only where the profile shows a "Licence verified" badge with a date.
- Prices. Price ranges are indicative, compiled from hospital price lists and packages and shown with the date last updated. The hospital's written quote is what you pay against.
- Clinical text. Written by the Medcasts editorial team from published clinical sources. Unless a named reviewer is shown on the page, it has not been reviewed by a doctor.
- Independence. Hospitals cannot pay to change their position on our pages.
Long QT Syndrome
Continue evaluating long qt syndrome care
Condition overview is one entry. These hubs route the same care decision via specialty, surgeon, treatment, and destination — including the doctors actively treating long qt syndrome.
- Surgeons Doctors treating Long QT Syndrome Volume-ranked specialists across all relevant specialties.
- Specialty Cardiac Surgery hub Programs, surgeons, hospitals across cardiac surgery.
- Procedure ICD (Implantable Cardioverter Defibrillator) First-line treatment with success rates, recovery, hospital pricing.
- Browse All 79 conditions Map condition → specialty → first-line treatment.
- Browse 9 destination countries Cost-of-care profiles, hospital programs, visa playbooks.
- Compare Hospital comparison Side-by-side accreditations, ratings, beds, and pricing.
- Compare Doctor comparison Surgeons compared on volume, fees, languages, video-consult availability.
- Tool Match-me triage Three questions, get a specialty + destination + 3-hospital shortlist.
- Tool Cost calculator Hospital-reported pricing across procedures × destinations.
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Next step · Long QT Syndrome
Free second opinion on your Long case.
Share imaging and the current plan. Multidisciplinary board returns a written opinion within 5–10 working days — no obligation to travel.