All About Cardiovascular System and Disorders

APRIL 17, 2024

Ventricular tachycardia is a potentially life threatening cardiac arrhythmia. On the ECG, ventricular tachycardia can be defined as three or more ventricular ectopic beats occurring in a sequence at a rate more than 100 per minute. Another rare form of ventricular tachycardia is bidirectional ventricular tachycardia.

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Circulation

NOVEMBER 11, 2024

Electrocardiogram (ECG) and telemetry revealed junctional bradycardia with heart rate in 30s and sinus pauses (5-7 seconds). He was admitted for further workup of bradycardia. His home medications included metoprolol succinate 25mg daily which was held given bradycardia. Initial laboratory analysis was unremarkable.

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Bradycardia Coronary Artery Disease Kidney Disease Outpatient 40

HeartRhythm

MARCH 31, 2025

MODULAR ATP, a multicenter, international trial, assesses a subcutaneous ICD (S-ICD) in wireless communication to a leadless pacemaker (LP) capable of pace-terminating ventricular arrhythmias (VAs). The LP may also function as a standalone pacemaker. This analysis reports 12-month outcomes.

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Bradycardia Pacemaker Tachycardia Arrhythmia 40

HeartRhythm

MARCH 31, 2025

An 82 old woman received an Aveir dual-chamber leadless pacemaker for sinus bradycardia. One month later, she presented with PMT due to a novel mechanism.

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ECG Guru

JULY 30, 2024

The ECG shows an example of a patient with bradycardia/tachycardia syndrome (also called sick sinus syndrome). After a further pause of just under 2000 ms, 2 sinus node beats follow, which merge into a sinus tachycardia or atrial tachycardia (heart rate approx. Initially, a sinus rhythm with a heart rate of approx.

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Dr. Smith's ECG Blog

OCTOBER 18, 2023

During the night, while on telemetry, the patient became bradycardic, with periods of isorhythmic AV dissociation (nodal escape rhythm alternating with sinus bradycardia), and there were sporadic PVCs. The above ECGs show the initiation and continuation of a polymorphic ventricular tachycardia.

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Dr. Smith's ECG Blog

DECEMBER 16, 2018

Wide-complex tachycardia: VT or aberrant, or "other?" A wide-complex tachycardia in an older patient must immediately suggest ventricular tachycardia. Sinus tachycardia with aberrancy was unlikely as the rate was consistently 150 bpm, without spontaneous variation. second ), in which the tachycardia is sustained.

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ECG Guru

AUGUST 28, 2023

Initially, there is an accelerated atrial rhythm/atrial tachycardia. Pre-automatic pause is a pause after a tachycardia and before an automatic rhythm, like sinus rhythm or, in this case, junctional escape rhythm. This EKG shows the classic features of sick sinus syndrome. Paper speed is 12.5

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Dr. Smith's ECG Blog

FEBRUARY 6, 2024

The ECG shows sinus tachycardia with RBBB and LAFB, without clear additional superimposed signs of ischemia. The Initial ECG in Today's Case: As per Dr. Meyers — the initial ECG in today's case shows sinus tachycardia with bifascicular block ( = RBBB/LAHB ). Sinus Tachycardia ( common in any trauma patient. ).

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Dr. Smith's ECG Blog

DECEMBER 23, 2019

Initial ECG in the ED: Presenting ECG : Wide-complex tachycardia at a rate about 200. This is overwhelmingly likely to be ventricular tachycardia, even if only age and medical history are considered. Nevertheless, the widths of both the QRS complex and the RS duration are similar in both the old ECG and the tachycardia.

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Medical Xpress - Cardiology

APRIL 15, 2025

A brisk walking pace, and the amount of time spent at this speed, may lower the risk of heart rhythm abnormalities, such as atrial fibrillation, tachycardia (rapid heartbeat), and bradycardia (very slow heartbeat), finds research published online in the journal Heart.

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Heart Rhythm Research Bradycardia Atrial Fibrillation 40

Cardiomatics

APRIL 5, 2024

Sinus tachycardia – sinus rhythm above 100 bpm is a sinus tachycardia. Sinus bradycardia – sinus rhythm below 60 bpm is a sinus bradycardia. Ventricular tachycardia – more than 7 consecutive complexes originating from ventricles at a rate of > 100 bpm. Usually does not exceed 160 bpm.

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Ken Grauer, MD

JUNE 2, 2023

to 1828 msec. ) — which corresponds to a variation in the rate of sinus bradycardia from 36-to-33/minute. This makes sense given that the underlying rhythm in today's case appears to be marked sinus bradycardia and arrhythmia , with a ventricular escape rhythm appearing when the SA node rate drops below 33/minute.

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Dr. Smith's ECG Blog

JUNE 27, 2024

EMS reports intermittent sinus tachycardia and bradycardia secondary to some type of heart block during transport. It is hard to make out P waves but you can see them best in V2, and notches in the T waves in other leads - this is a sinus tachycardia with a very long PR interval indicating first degree block.

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Ken Grauer, MD

DECEMBER 23, 2023

RBBB is no longer seen after conversion to sinus rhythm — which supports our suspicion that the intermittent RBBB conduction seen every-other-beat during the tachycardia ( in Figure-1 ) was rate-related. Note that QRS morphology after conversion to sinus rhythm is very similar to QRS morphology of odd-numbered beats during the tachycardia.

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All About Cardiovascular System and Disorders

MARCH 23, 2024

Sometimes, head up tilt test, also known in short as HUTT, is also done for the evaluation of postural orthostatic tachycardia syndrome, POTS, a condition in which there is tachycardia on standing up, without a fall in blood pressure. Second is cardioinhibitory response, in which there is bradycardia, but no hypotension.

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Dr. Smith's ECG Blog

JUNE 23, 2023

A 50-something male with unspecified history of cardiomyopathy presented in diabetic ketoacidosis (without significant hyperkalemia) with a wide complex tachycardia and hypotension. Analysis: there is a wide complex tachycardia. This was the interpretation I put into the system: WIDE COMPLEX TACHYCARDIA. It is regular.

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Tachycardia Cardiomyopathy Arrhythmia Diabetes 52

Dr. Smith's ECG Blog

APRIL 15, 2019

Here was his initial ED ECG: There is sinus tachycardia at a rate of about 140 There is profound ST Elevation across all precordial leads, as well as I and aVL. I said I think there is a fixed stenosis in the LAD and the tachycardia and stress caused a type 2 STEMI.

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MIBHS

JANUARY 31, 2025

Early detection of conditions like AFib, bradycardia, or tachycardia allows patients to address issues before they become critical. Early Detection of Issues Wearable devices provide real-time alerts about irregularities in heart function.

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Heart BMJ

JUNE 17, 2024

This is often secondary to sinus tachycardia, sinus bradycardia and sinus arrhythmia, or isolated premature atrial or ventricular arrhythmias (VAs). To be aware of important medication contraindications during pregnancy and lactation, as they pertain to arrhythmia management and anticoagulation. 2–4.

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Dr. Smith's ECG Blog

JULY 5, 2018

during which sinus bradycardia and arrhythmia are seen but not to a degree that produces symptoms. Thus, there is sinus bradycardia and arrhythmia sinus pauses ( which may be longlasting, ultimately leading to sinus arrest ) and SA nodal block. The indication for pacemaker placement with SSS is symptomatic bradycardia.

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Dr. Smith's ECG Blog

FEBRUARY 27, 2023

Descriptive analysis of the ECG in today's case reveals a regular, narrow tachycardia at ~130/minute , without clear sign of sinus P waves. But the rate is ~130/minute — which is a bit fast for sinus tachycardia. So IF this is sinus tachycardia with a sinoventricular rhythm — then we have to explain WHY the rate is this fast.

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Journal of Cardiovascular Electrophysiology

DECEMBER 1, 2023

Abstract Introduction Severe transitory episodes of bradycardia with subsequent syncope in children are common, and generally portend a benign prognosis. with one documented SP after termination of atrial tachycardia at the 3-month follow-up. The median longest pause was 8.9 s s (range 3.9–16.8) s (range 0.8–2.2)

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EMS 12-Lead

JULY 21, 2022

We have borderline sinus bradycardia with 1 ° AVB and occasional PACs. If this was a tachycardia at a rate of 150, it might appear to be a narrow complex tachycardia, when in fact, it would be a wide complex tachycardia! ECG diagnosis: Borderline sinus bradycardia, 1st degree AVB, RBBB, and occasional PACs.

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Conquering CHD

JULY 11, 2023

A rapid heartbeat (tachycardia) can increase the workload on your heart, while a slow heartbeat (bradycardia) can cause fatigue and dizziness. It’s crucial to monitor your blood pressure regularly and report any significant changes to your healthcare provider so they can adjust the dosage of the medication accordingly.

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Dr. Smith's ECG Blog

JANUARY 31, 2019

This phenomenon is best known as, A V D issociation b y D efault ie, default of the sinus pacemaker due to marked sinus bradycardia, which transiently allows the AV nodal escape pacemaker to take over. Instead, as we state above the rhythm is sinus bradycardia with marked sinus arrhythmia. Close follow-up is essential.

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Ken Grauer, MD

JULY 18, 2024

As a result, rather than atrial tachycardia — I suspect we are seeing a slightly increased sinus rate with the above described 2nd-degree dual-level AV block. As a result, if significant bradycardia persists ( especially if accompanied by symptoms ) — then pacing may be needed.

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Wellnest

JUNE 19, 2023

Similarly, you may use our , app to adjust the paper speed along with amplification to read the slightest changes, especially for conditions like tachycardia and bradycardia. The novel technology system present in 12L ECG helps us analyze unrecognizable ECG patterns that are hard to detect by human eyes.

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Technology Cardiac Arrest Innovation Coronary Artery Disease 52

Dr. Smith's ECG Blog

OCTOBER 15, 2024

He had multiple episodes of bradycardia and nonsustained ventricular tachycardia. Serial high sensitivity troponin T (URL 15 ng/L) values were negative and stagnant. Patient 1 remained in the hospital overnight. He went to the cath lab at 0900 the next morning. It was stented.

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EMS 12-Lead

MARCH 19, 2023

The shortened PR-interval, specifically, proved to be quite beguiling as it swept crews down a differential diagnosis of intermittent accessory pathway syndrome – insomuch as a “syndrome” of recurrent tachycardia to account for the patient’s symptoms.

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Dr. Smith's ECG Blog

SEPTEMBER 16, 2024

But there are 3 other wide beats in the tachycardia that begins with beat #6 ( = beats #7; 13,14 ). To Emphasize: Although beat #6 is wide — this beat is also a PAC ( the BLUE arrow highlighting the premature P wave preceding beat #6 that notches the T wave of beat #5 ).

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Dr. Smith's ECG Blog

APRIL 29, 2020

A useful classification of WCT ( W ide- C omplex T achycardia ) rhythms — separates them into those that are mono morphic ( with similar QRS morphology during the tachycardia ) vs those that are poly morphic ( in which QRS morphology varies ). QUESTION Regarding ECG #5: WHAT ECG findings in ECG #5 predispose to development of Torsades?

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Dr. Smith's ECG Blog

NOVEMBER 18, 2019

U waves may also be found in patients with LVH and/or bradycardia , or occasionally as a normal variant. Y OU s hould h ave n oted the following additional ECG findings in ECG #1 : There is sinus tachycardia at ~100/minute in ECG #1. N OTE # 1 — U waves are not specific for hypokalemia! second ).

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Dr. Smith's ECG Blog

MARCH 2, 2019

My L IST includes the following: i ) LVH with strain; ii ) Ischemia; iii ) Digoxin use; iv ) HypoKalemia and/or HypoMagnesemia; v ) Tachycardia; and , vi ) Any combination of i-thru-v. In my experience, Ive seen U waves not only with low K+/low Mg++ but also in patients with bradycardia, LVH, and sometimes in normal subjects.

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Dr. Smith's ECG Blog

NOVEMBER 25, 2022

Sinus Tachycardia ( common in any trauma patient. ). Other Arrhythmias ( PACs, PVCs, AFib, Bradycardia and AV conduction disorders — potentially lethal VT/VFib ). RBBB ( as by far the most common conduction defect — owing to the more vulnerable anatomic location of the RV ).

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Dr. Smith's ECG Blog

JANUARY 23, 2024

Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. For example — bradycardia and AV conduction disturbances are not uncommon with Hyperkalemia , with these conduction disturbances most often resolving once serum K+ is corrected. She was started on isoprenalin (isoproterenol).

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Dr. Smith's ECG Blog

FEBRUARY 22, 2024

There was concern that the rhythm might represent ventricular tachycardia, so lidocaine was given and one attempt at cardioversion was performed. See our other countless hyperkalemia cases below: General hyperkalemia cases: A 50s year old man with lightheadedness and bradycardia Patient with Dyspnea. A Very Wide Complex Tachycardia.

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