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The complete ECG platform

Learn to read ECGs with a specialist's depth.

Study, practice and look up the ECG in one place: a clinical reference, a tracing bank and bedside tools, built by a cardiac electrophysiologist.

See plansExplore Pro →
Launching soon. The tools are already free.
12-lead ECG printed on a study desk, with calipers, a pen and a book
Built by a specialistDr. Matheus Scheffer · electrophysiologist
Author of three booksReference works on the ECG
Evidence-basedUp-to-date, referenced content
@aprendaecg communityA leading ECG teaching brand in Brazil
Features

Everything you need to master the ECG.

One platform, three areas: Learn, Look up and Keep up. Built for students and for the physician making the call on shift.

Complete reference

More than 200 articles covering every ECG topic, like a big textbook with teaching tools in every chapter.

Study Mode

A guided track through ECG topics, with questions, flashcards, mind maps and audio summaries.

ECG Bank

Thousands of tracings, with filters to find exactly the finding you're after. Practice on real ECGs.

Interactive clinical cases

From tracing to management, step by step, with the reasoning explained at every stage.

Quick reference and tools

ECG criteria in seconds, plus calculators, flowcharts, algorithms and interactive simulators.

ECG AI

Ask questions in a chat while you study, built into the whole platform.

Pro plan
A look inside

Designed around how you actually use the ECG.

Navigation by intent: learning and looking things up live in separate places. Calm for studying, dense and fast for the shift.

  • Learning and look-up, kept apartStudy modes on one side; reference and quick look-up on the other.
  • Your progress, always visiblePoints, levels and badges that show how far you've come.
  • Works on shiftLight on your phone, with quick reference one tap away.
Aprenda ECGPROSearch a finding, rhythm or diagnosis…⌘K0 ptsMSHomeLEARNStudy modeQuestionsFlashcardsECG practiceClinical casesLOOK UPReferenceQuick referenceClinical managementECG bankToolsKEEP UPUpdatesPoint of viewTools›Electrical axis explorerElectrical axis explorerDrag the vector around the hexaxial circle and watch the QRS change in each limb lead.aVRaVLIIIIIIaVF−109°−90° to ±180°Extreme axis deviationMost positive: aVR (−150°) · most equiphasic: aVL,perpendicular to the axis.+60°0°−60°+120°−150°InegativeIInegativeIIInegativeaVRmost positive · positiveaVLmost equiphasic · positiveaVFnegative
Dr. Matheus Kiszka Scheffer
Instituto Dante PazzaneseTele-electrocardiography
Who's behind it

Matheus Kiszka Scheffer

Cardiologist · Clinical arrhythmia specialist · Instituto Dante Pazzanese (São Paulo, Brazil)

Aprenda ECG is led by Dr. Matheus Kiszka Scheffer, a Brazilian cardiologist and arrhythmia specialist who works in Tele-electrocardiography at the Instituto Dante Pazzanese de Cardiologia in São Paulo and has experience training residents, students and physicians.

His career spans clinical practice, teaching and research. He sees the ECG as a decisive tool in patient care, and also as a field where many concepts are still taught in a fragmented, rote or outdated way.

He has written three books on the subject, including the well-regarded Eletrocardiograma de A a Z. At Aprenda ECG, his mission is to turn that knowledge into a clearer, more practical, evidence-based way to study.

Training and experience

  • Physician, Tele-electrocardiography Department, Instituto Dante Pazzanese (IDPC)
  • Clinical electrophysiology fellowship — IDPC
  • Cardiology residency — IDPC
  • Board certification in cardiology — Brazilian Society of Cardiology (SBC)
  • Internal medicine residency — Santa Casa de Curitiba / PUC-PR
  • MD — Universidade Estadual de Ponta Grossa (UEPG)

Author and editor of

  • Eletrocardiograma de A a Z
  • Eletrocardiograma na Síndrome Coronária Aguda
  • Manual Prático de Eletrocardiograma
Launching soon

Aprenda ECG Pro is almost here

We're putting the finishing touches on the platform. Plans and pricing will be announced soon.

7-day free trialTwo plans: Free and ProNo commitment
See the plansSee all features →
Free for you

Start today, at no cost.

Aprenda ECG's tools and blog are open to everyone: use them while you study or at the bedside.

Corrected QT

Calculate the QTc with Bazett, Fridericia and three other formulas, side by side.

Open the tool

Electrical axis explorer

Move the vector around the hexaxial circle and watch the QRS change in each lead.

Open the tool

Brugada algorithm

Tell VT from SVT with aberrancy in wide-QRS tachycardia, step by step.

Open the tool
See all tools →Read the blog
Questions

Frequently asked questions

Who is Aprenda ECG for?
Medical students, residents and physicians who want to read ECGs with confidence. The content meets you at your level, from your first tracing to specialist-level reasoning, so you don't need to be a cardiologist to start.
When does Aprenda ECG Pro launch?
We're finishing the platform. Plans and pricing will be posted on this site soon.
What's included in the platform?
A complete clinical reference, a bank with thousands of ECGs, quick reference for the shift, tools like QTc and electrical axis, and real practice: questions, flashcards, clinical cases and mind maps. All in one place.
Does it work on shift and on my phone?
Yes. Quick reference and the tools are designed to be opened with the patient in front of you, and the platform runs smoothly on mobile. Nothing to install: it works right in your browser.
What plans will there be?
Two. Free lets you explore the platform for 7 days. Pro unlocks everything, including Study Mode, the ECG Bank and ECG AI.
What can I use in the meantime?
The tools are already open and free: QTc, electrical axis, Brugada, Vereckei, Sgarbossa, CHA₂DS₂-VA and more. The blog is open too.

Be among the first to study with Aprenda ECG Pro.

Until the platform opens, start with the free tools or take a look at the plans.

See plansTry the tools