Tachycardia

Tachycardia is a rate that is faster than normal. In adults, a fast heart rate is usually over 100 beats per minute. At standard settings, this means there will be 3 or fewer large grid squares between beats.

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In the ECGquest archives, this ECG has been tagged with: - Abdominal pain Chest pain 12-Lead Coved ST elevation Peaked T waves Tachycardia Wide QRS Sinus tachycardia Hyperkalemia Dr Smith's ECG Blog CC BY-NC
Do you recognize this ECG yet? 31724

This ECG is from a man in his 30s who presented with chest pain and RUQ abdominal pain, on a background of type 1 diabetes. His BSL was high.

This ECG shows sinus tachycardia with a wide QRS, R in aVR, coved ST elevation and peaked T waves. The cause was hyperkalemia.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea 12-Lead Irregular Narrow QRS Tachycardia Tall QRS Widespread ST depression Atrial fibrillation ECG Interpretation CC-BY-NC-SA
ECG Blog #166 (ST-T – AFib – LVH – SVT) 30680

This ECG is from a woman in her 60s who presented in acute heart failure with dyspnoea and intermittent chest discomfort.

This ECG shows atrial fibrillation, LVH and diffuse ST-T changes.

In the ECGquest archives, this ECG has been tagged with: - Dyspnoea Fever 12-Lead Regular Tachycardia Widespread ST elevation Sinus tachycardia Myocardial Bridging Dr Smith's ECG Blog CC BY-NC
Tachycardia, fever to 105, and ischemic ST Elevation — a Bridge too Far 30434

This ECG is from a man in his 50s who presented with a high fever and dysonpea.

This ECG shows sinus tachycardia with widespread ST elevation. He was treated for sepsis but serial ECGs and troponins were abnormal. Angiogram showed a myocardial bridge in the mid LAD.

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Tachycardia Wide QRS Change in rhythm Wide complex tachycardia Bifascicular block LAFB RBBB Positive Sgarbossa criteria Dr Smith's ECG Blog CC BY-NC
What is this rhythm? And what else does it show? 30008

This ECG is from a man in his 60s who presented with abdominal pain dyspnoea and altered level of consciousness, in shock.

This ECG shows wide complex tachycardia with concordant ST elevation in V4-6, due to LAD occlusion. The rhythm was likely sinus tachycardia with RBBB and then LAFB mid way through the trace.

In the ECGquest archives, this ECG has been tagged with: - 12-Lead Tachycardia SVT Wide complex tachycardia LBBB Dr Smith's ECG Blog CC BY-NC
Ventricular Tachycardia? Or SVT with Aberrancy? 29404
In the ECGquest archives, this ECG has been tagged with: - Syncope 12-Lead Fragmented QRS Left Axis Deviation Regular Tachycardia ECG Guru CC-BY-NC-SA
Instructors’ Collection ECG : Syncope and tachycardia 29273

This ECG is from a man in his 50s who presented with syncope on a background of diabetes, opiate abuse and possible prior cardiac disease.

This ECG shows a supraventricular tachycardia with evidence of P waves, left axis deviation and slightly wider QRS (106 msec) likely due to LAFB, tall QRS concerning for LVH and fragmentation in V2-4 suggesting prior MI.

In the ECGquest archives, this ECG has been tagged with: - Palpitations 12-Lead Absent P waves Extreme tachycardia Narrow QRS Normal Axis Regular ST elevation in aVR Tachycardia Widespread ST depression SVT ECG of the Week CC-BY-NC-SA
ECG of the Week – 7th January 2019 – Interpretation 29126

This ECG is from a woman in her 20s who presented with palpitations for an hour.

This ECG shows a regular narrow complex tachycardia (SVT) with secondary ST segment changes due to the extreme rate (205 bpm).

In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea 12-Lead Regular Tachycardia Wide QRS Wide complex tachycardia Toxicology / Overdose Dr Smith's ECG Blog CC BY-NC
Wide-complex tachycardia: VT, aberrant, or “other?” 28842

This ECG is from an older woman who presented with dyspnoea, diaphoresis and chest pressure. She had a background of paroxysmal AF for which she was on flecainide.

This ECG shows a regular wide complex tachycardia with possible flutter waves. There was no response to adenosine. The patient was electrically cardioverted. The cause was thought to be flecainide toxicity.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea 12-Lead Wandering baseline Excessive discordant ST depression. Excessive discordant ST elevation Pacemaker spikes Regular Tachycardia Wide QRS Ventricular pacemaker Multi-vessel disease Dr Smith's ECG Blog CC BY-NC
Can you see through this wide complex rhythm? 28777

This ECG is from a man in his 70s who presented with intermittent dyspnoea and chest pain over the past 2 weeks. He had a history of a pacemaker, heart failure, aortic stenosis, diabetes, hypertension, stroke, ischemic heart disease, chronic kidney disease and peripheral vascular disease. This was his initial ECG.

This ECG shows a wide complex tachycardia with ventricular pacing. The excessively discordant ST changes in V4-6 and aVR suggested diffuse subendocardial ischemia. He was found to have severe three vessel disease and a proximal left circumflex stenosis was stented.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea 12-Lead Absent P waves Anterior ST depression Extreme tachycardia Inferior ST elevation Narrow QRS Normal Axis Reciprocal ST depression Regular Tachycardia Atrial flutter Multi-vessel disease Dr Smith's ECG Blog CC BY-NC
Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide. 28056

This ECG is from a man in his 60s who presented with intermittent shortness of breath and chest pressure over the past few days. This was his initial ECG.

This ECG shows a regular narrow complex tachycardia around 200 bpm, without P waves, with marked ST elevation in inferior leads and ST depression in anterior leads and aVL. The cause was thought to be atrial flutter from newly started flecainide. He also underwent angiography and had stents inserted to the left circumflex and right coronary arteries.

In the ECGquest archives, this ECG has been tagged with: - Chest pain Dyspnoea 12-Lead Anterior ST depression Inferior ST elevation Narrow QRS Normal Axis Normal P waves Reciprocal ST depression Regular Tachycardia Sinus tachycardia Multi-vessel disease Dr Smith's ECG Blog CC BY-NC
Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide. Repeat 1 min later. 28734

This ECG is from a man in his 60s who presented with intermittent shortness of breath and chest pressure over the past few days. This was his repeat ECG after the rhythm changed.

This ECG shows a sinus tachycardia with ST elevation in inferior leads and ST depression in anterior leads and aVL. He underwent angiography and had stents inserted to the left circumflex and right coronary arteries.

In the ECGquest archives, this ECG has been tagged with: - Palpitations 12-Lead Inferior ST depression Narrow QRS Normal Axis Regular Tachycardia SVT ECG of the Week CC-BY-NC-SA
ECG of the Week – 8th October 2018 – Interpretation 27569

This ECG is from a woman in her 50s who presented with palpitations for the last few hours. She had no known medical conditions and no regular medications.

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