Cardiac Ablation in China: Which Rhythm Recordings Should I Send?

Start with the recordings that captured the rhythm

The single most useful item is a tracing taken while the patient was symptomatic. A normal resting ECG recorded on a good day tells the electrophysiologist very little about paroxysmal atrial fibrillation, a short run of supraventricular tachycardia or intermittent ventricular ectopy. The rhythm has to be caught on paper or in a digital file for anyone to characterise it.

Ablation targets selected abnormal heart rhythms by treating the tissue responsible for them, and the approach depends on which rhythm problem is present. That is why the recording matters more than the diagnosis label alone. Two patients both told they have 'AF' may need different mapping and different lesion sets depending on whether the pattern is paroxysmal or persistent, whether there is concurrent atrial flutter, and whether prior ablation has been performed.

Gather every tracing you already have, not only the most recent. Old recordings that show the rhythm before any drug treatment are often more informative than a current ECG taken while the patient is well controlled on medication. If a recording was made during an emergency visit or a hospital admission, include the discharge summary that explains what was seen and what was given.

• 12-lead ECG strips showing the abnormal rhythm, with the date and time visible
• Holter, event monitor or patch-monitor reports, including the full rhythm strips and the summary page
• Smartwatch, wearable or home-device tracings, exported as PDF or original files rather than screenshots
• Device interrogation reports if a pacemaker, ICD or implantable loop recorder is already in place
• Any electrophysiology study report or prior ablation report, including the target and approach used

Label each file so the rhythm can be matched to symptoms

A tracing without context is hard to interpret. Write a short note for each recording: what the patient felt at that moment, how long it lasted, what the pulse was if measured, and what medication had been taken that day. Palpitations, breathlessness, chest discomfort, dizziness and fainting are different symptoms, and the rhythm captured during each one may point in a different direction.

Medication timing is part of the record, not a separate detail. A rhythm that appears only when a rate-control or antiarrhythmic drug wears off looks different from one that breaks through treatment. Do not stop or change any medication to produce a 'cleaner' recording. If the treating team wants a recording without a particular drug, that decision belongs to the prescribing clinician, and it should be made with a plan for what to do if symptoms worsen.

If the recordings are in a language other than English, a short translated summary of the report headings helps, but keep the original files. Do not retype or edit the tracings themselves. A scanned or photographed ECG is acceptable if the calibration marks, lead labels and time axis are readable; a cropped phone photo of one lead is often not.

What a remote review can and cannot settle

A records-based review can answer useful preliminary questions: does the tracing show a rhythm that ablation is designed to treat, is there an obvious trigger or substrate, and what additional information would the electrophysiologist want before offering a procedure? It can also identify whether the file is complete enough to discuss at all, or whether the key recording is missing.

It cannot confirm suitability, choose the target, or predict the result. Those decisions depend on the in-person assessment, including how the patient responds to current treatment, the echocardiogram and other imaging, the presence of structural heart disease, and the patient's own priorities. A remote opinion is a planning step, not a substitute for the electrophysiologist's examination and consent discussion.

This distinction matters when a patient is deciding whether to travel. A remote review may indicate that ablation is worth discussing, but it does not establish that the hospital will accept the case, that a particular approach will be used, or that the procedure will go ahead on a given date. Those are decisions for the treating team after they have seen the patient and the full record.

Organise the gaps without ordering new tests yourself

Most patients arrive with some pieces missing. The useful move is to list what is absent and ask the receiving electrophysiologist which items they actually need, rather than booking tests in advance on your own initiative. A test ordered without the treating team's question in mind may be repeated or may not answer what they need to know.

Common gaps include an old ECG from before treatment started, the full Holter report rather than only the summary, an echocardiogram report with measurements, and a clear medication history with doses and dates. If a prior ablation was performed elsewhere, the procedure report and any subsequent rhythm recordings are important, because a repeat procedure is planned differently from a first one.

Ask the receiving team directly: which recordings do you need, in what format, and is there a specific rhythm or symptom you want documented? That question turns a vague records request into a short, answerable list. It also avoids sending a large archive that buries the one tracing that matters.

• Which rhythm or symptom do you most need documented?
• Do you need the original tracing files, or is a clear scan sufficient?
• Is there a minimum duration or number of episodes you want captured?
• Do you need the echocardiogram images as well as the report?
• If a prior ablation was done, do you need the procedure report and post-procedure recordings?

Questions the specialist must decide, not the patient

Several decisions belong entirely to the treating electrophysiologist and cannot be resolved by gathering more files. Whether ablation is appropriate at all, which rhythm is the primary target, whether a repeat procedure is needed, and what anticoagulation or antiarrhythmic plan surrounds the procedure are clinical judgements. The patient's role is to provide accurate records and to ask what the plan is and why.

It is reasonable to ask how the team will confirm the target during the procedure, what alternatives exist if the rhythm cannot be induced, and what follow-up is expected. It is not reasonable to expect a remote reviewer to commit to a specific number of procedures, a guaranteed outcome, or a fixed date for return to normal activity. Those depend on the individual case and on findings at the time.

If symptoms are severe, worsening, or include fainting, chest pain or breathlessness at rest, local urgent assessment takes priority over planning travel. Ablation is an elective procedure for most rhythms, and the safest sequence is to stabilise first and plan second.

A practical way to prepare the file

Build one folder with a short index page at the front. The index should list each recording, its date, the symptom it captured, and the medication taken at the time. Behind the index, place the tracings in date order, then the reports, then the medication list. Keep the original files alongside any translated summaries.

When you contact a China-based coordination service, start with a brief summary rather than the whole archive. An initial enquiry is free and is meant to check whether the records and the main question are clear enough to suggest a next step. It is not a diagnosis and does not commit you to a proxy consultation or any paid service. If the team suggests a records-based specialist opinion, that is an optional step, and the hospital still decides whether to accept the case.

The relevant procedure reference for this topic is catheter ablation, which explains the procedure itself and how it is planned. Read it alongside this guide, then prepare the recordings and the questions above before making contact.

Related treatment reference