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WHAT EXACTLY IS AN ARRHYTHMIA?

Dr. Sanjay Gupta

The word arrhythmia comes from two Greek words. So arrhythmia literally means absence or loss of rhythm. A cardiac arrhythmia therefore means loss of cardiac rhythm. It is important that the term dysrhythmia is never enough as a complete diagnosis.

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Torsade in a patient with left bundle branch block: is there a long QT? (And: Left Bundle Pacing).

Dr. Smith's ECG Blog

Because she has cardiomyopathy and ventricular dysrhythmias, the pacer included an Implanted Cardioverter-Defibrillator (ICD) Echo 6 days later after CRT: Normal estimated left ventricular ejection fraction. The septum is punctured with the active fixation screw of the lead - so essentially you bore the septum with the screw helix."

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A teenager involved in a motor vehicle collision with abnormal ECG

Dr. Smith's ECG Blog

See these publications for more information Overall, management for cardiac contusion is mostly supportive unless surgical complications develop, involving appropriate treatment of dysrhythmias and hemodynamic instability. Other Arrhythmias ( PACs, PVCs, AFib, Bradycardia and AV conduction disorders — potentially lethal VT/VFib ).

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Very fast regular tachycardia: 2 ECGs from the same patient. What is going on?

Dr. Smith's ECG Blog

Is it sinus or is it a supraventricular dysrhythmia? Of academic interest — are the arrhythmias that developed. The Arrhythmia Lesson to be Learned: I was not initially confident about my interpretation of the rhythm in today's 5 tracings.

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A man in his 70s with weakness and syncope

Dr. Smith's ECG Blog

There were no dysrhythmias on cardiac monitor during observation. This discussion comes from this previous post: Hyperthermia and ST Elevation Discussion Brugada Type 1 ECG changes are associated with sudden cardiac death (SCD) and the occurrence of ventricular dysrhythmias. He was found to be influenza positive. Is there fever again?

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What is the rhythm? And is there new left bundle branch block (LBBB)?

Dr. Smith's ECG Blog

Idioventricular rhythm is a common "reperfusion arrhythmia." The second explanation (AIVR), whether as a reperfusion dysrhythmia or not, seems most likely. Whether it is AIVR or LBBB, the rule of appropriate discordance applies, so there should be discordant ST elevation in leads V2 and V3, but there is not. But it is not conclusive.

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STEMI with Life-Threatening Hypokalemia and Incessant Torsades de Pointes

Dr. Smith's ECG Blog

Could the dysrhythmias have been prevented? IV administration of potassium is indicated when arrhythmias are present or hypokalemia is severe (potassium level of less than 2.5 malignant ventricular arrhythmias are present), rapid replacement of potassium is required. If cardiac arrest from hypokalemia is imminent (i.e.,

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