All About Cardiovascular System and Disorders

MAY 2, 2024

Athlete’s bradycardia due to increased parasympathetic tone and decreased sympathetic tone is a well-known observation. Though sinus bradycardia is usual, other abnormalities like sinus arrhythmia, sinus arrest, wandering atrial pacemaker and coronary sinus rhythm have been described. Circulation. Heart Lung Circ.

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Exercise Cardiomyopathy Blood Pressure Physiology 40

All About Cardiovascular System and Disorders

APRIL 14, 2024

Use of drugs producing bradycardia like beta blockers in stages III and IV may precipitate low output state. Circulation. In stage IV, this restrictive filling pattern remains fixed even during Valsalva maneuver. Initial stages (I to III) are considered reversible with treatment. Stage IV is considered as advanced. 2012; 126: 138-141.

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Bicuspid/Mitral Pulmonary Atrial Fibrillation Ultrasound 52

Ken Grauer, MD

FEBRUARY 9, 2024

Whatever today's rhythm turns out to be — the "good news" is that the bradycardia and degree of AV block is likely to improve as soon as there is reperfusion of the "culprit" artery ( Therefore need for prompt cath with PCI ).

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Blog Arrhythmia STEMI Bradycardia 105

Dr. Smith's ECG Blog

JANUARY 23, 2023

Triage physician interpretation: -sinus bradycardia -lateral ST depressions While there are lateral ST depressions (V5, V6) the deepest ST depressions are in V4. In this case, the vessel supplied a portion of the posterior LV circulation. The screening physician ordered an EKG and noted his ashen appearance and moderate distress.

Chest Pain 52

Chest Pain Blog Stenosis Myocardial Infarction 52

Dr. Smith's ECG Blog

JUNE 28, 2019

This is sinus bradycardia. Thus, in ECG #1 — the Tall R in lead V1 + the more-peaked-than-expected chest lead T waves + all of those lateral lead Q waves were probably all findings reflective of this patient’s prior coronary injury and coronary anatomy ( with disease in the posterior and circumflex circulation ). The QRS is narrow.

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Chest Pain Pericarditis Stent Stents 52

Dr. Smith's ECG Blog

MARCH 15, 2023

Baseline bradycardia in endurance athletes limits the use of ß-blockers. Ballatore et al — Medicina (Kaunas) 55(8): 497, 2019 — and — Page et al — Circulation 107:1141-1145, 2003 ). Clinically — The importance of factoring in increased vagal tone as a contributing factor to AFib episodes — extends into management.

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Atrial Fibrillation AFIB Arrhythmia Exercise 52

Dr. Smith's ECG Blog

JANUARY 3, 2022

Sinus bradycardia, normal conduction, normal axis, normal R wave progression, no hypertrophy. Circulation 2014 7. -- McLaren JTT, Meyers HP, Smith SW, Chartier LB. This fantastic case and post was written by Jesse McLaren (@ECGcases), edited by Smith Case You’re shown an ECG from a patient in the waiting room with chest pain.

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STEMI Myocardial Infarction Chest Pain Ischemia 52

EMS 12-Lead

MAY 15, 2024

After 13 minutes of ALS resuscitation, pulses were palpated indicating a return of spontaneous circulation. Crew notifies the received ED of an incoming post-arrest patient and notes a sinus bradycardia on their monitor, as seen in Figure 2. Figure 2 : This rhythm shows a sinus bradycardia at a rate between 30 and 40bpm.

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Atrial Fibrillation Bradycardia Pacemaker Cardiac Arrest 132

Dr. Smith's ECG Blog

JULY 21, 2024

There was no evidence bradycardia leading up to the runs of PMVT ( as tends to occur with Torsades ). If there had been — a temporary atrial pacemaker could have been considered as a way of increasing the heart rate to suppress a bradycardia-dependent arrhythmia ("overdrive pacing").

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Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 131

DAIC

JANUARY 19, 2024

Our collaboration with Orchestra BioMed will explore how cardiac pacing can go beyond management of bradycardia and conduction disease to treat hypertension as well,” said Robert C. Circulation. Kowal, M.D., vice president and general manager of Cardiac Pacing Therapies within the Medtronic Cardiac Rhythm Management operating unit.

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Pacemaker Hypertension Blood Pressure Kidney Disease 105

Dr. Smith's ECG Blog

AUGUST 9, 2024

lidocaine) can result in severe bradycardia or asystole (Weinberg, Sedowski and Alexander, below) The presence of accelerated idioventricular rhythm does not affect prognosis, and there is no definitive evidence that, if left untreated, the incidence of VF or death is increased. Circulation Research , 56 (2), 184–194. Moffat, M.

Chest Pain 107

Chest Pain Arrhythmia Myocardial Infarction STEMI 107

Circulation

NOVEMBER 11, 2024

Circulation, Volume 150, Issue Suppl_1 , Page A4140337-A4140337, November 12, 2024. Background:Cardiac output reserve and exercise capacity are strong predictors of life expectancy. Chronotropic incompetence (CI) is the inability to reach an age appropriate maximum heart rate with exercise.

Exercise 40

Exercise Chest Pain Myocardial Infarction Bradycardia 40

Dr. Smith's ECG Blog

NOVEMBER 24, 2017

The rule of thumb is less accurate, and the risk is higher because a long QT in the presence of bradycardia ("pause dependent" Torsades) predisposes to Torsades. 6) Use a different rule of thumb for bradycardia : Manually approximate both the QT and the RR interval. 3) At heart rates below 60, far more caution is due.

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Bradycardia Article Atrial Fibrillation Chest Pain 52

Circulation

NOVEMBER 11, 2024

Circulation, Volume 150, Issue Suppl_1 , Page A4134483-A4134483, November 12, 2024. Introduction:European, American and UK guidelines all endorse the prescription of the 'four pillars' of treatment (ACE/ARBs, b-blockers, MRAs and SGLT2 inhibitors) for heart failure with reduced LV systolic function (HFrEF).

Heart Failure 40

Heart Failure Outpatient Bradycardia Nursing 40

Circulation: Cardiovascular Quality & Outcomes

FEBRUARY 8, 2024

Circulation: Cardiovascular Quality and Outcomes, Ahead of Print. Acute kidney injury was the most frequent possible treatment complication (515 000 per year), and bradycardia had the highest mean hospitalization costs ($17 400 [95% CI, $17 200–$17 500]).CONCLUSIONS:The

Cardiovascular Disease 40

Cardiovascular Disease Hospital Inpatient Cerebrovascular Disease 40

Dr. Smith's ECG Blog

APRIL 8, 2016

There is also bradycardia. Bradycardia puts patients at risk for "pause-dependent" Torsades de Pointes. Torsades in acquired long QT is much more likely in bradycardia because the QT interval following a long pause is longer still. mEq of K pushed fast and circulated theoretically would raise serum K immediately by 1.0

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STEMI Myocardial Infarction Cardiac Arrest Arrhythmia 52

Dr. Smith's ECG Blog

JANUARY 23, 2024

The physiologic reason for this — is thought to be the result of momentarily increased circulation from mechanical contraction arising from the "sandwiched in" QRS complex. The QRS complex in ECG #1 is wide.

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Tachycardia Arrhythmia Heart Disease Sudden Cardiac Death 107

Dr. Smith's ECG Blog

JANUARY 30, 2019

Circulation, 117, 1890–1893. [3]: Heart Rhythm, 13(7): 1515-1520. [2]: 2]: Junttila MJ, Gonzalez M, Lizotte E, Benito B, Vernooy K, Sarkozy A, Huikuri HV, Brugada P, Brugada J, Brugada R. Induced Brugada-type electrocardiogram, a sign for imminent malignant arrhythmias. Brugada electrocardiographic pattern induced by fever.

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Heart Rhythm Sudden Cardiac Death Arrhythmia STEMI 52

Dr. Smith's ECG Blog

APRIL 8, 2015

PVCs N ot generally considered abnormal ECG findings: Isolated PAC, First Degree AV Block, Sinus bradycardia at a rate of 35-45, and Nonspecific ST-T abnormalities (even if different from a previous ECG). Thus, if there is documented sinus bradycardia, and no suspicion of high grade AV block, at the time of the syncope, this is very useful.

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Arrhythmia Outcomes Chest Pain Risk Factors 52

Dr. Smith's ECG Blog

DECEMBER 5, 2023

A repeat ECG was performed as adult cardiology was asked to evaluate the patient for emerget PCI: Sinus bradycardia with persistent elevation in the inferior leads with reciprocal depression in aVL Patient was taken to cath lab with adult cardiology which revealed normal coronary arteries without evidence of occlusion MI. Circulation.

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Pediatrics Pericarditis COVID-19 Congenital Heart Disease 121

Dr. Smith's ECG Blog

FEBRUARY 4, 2025

Perhaps because the bradycardia in vasovagal syncope is only one part of the autonomic response. Phase 4 block is also referred to as "bradycardia dependent block." Circulation , 143 (10), 10621065. A stunning result. One of many examples in medical history that remind us of the importance of blinding in clinical trials.

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Pacemaker Bradycardia Document Heart Rhythm 84

Dr. Smith's ECG Blog

FEBRUARY 6, 2025

There are 2 main options: Overdrive pacing could be considered and in the right clinical situation, this is often effective for reducing ventricular arrhythmias ( especially in the case of preventing pause induced or bradycardia-induced arrhythmias in association with QTc prolongation ). Try a different kind of antiarrhythmic.

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Tachycardia Arrhythmia Ablation Atrial Flutter 72

Dr. Smith's ECG Blog

MARCH 8, 2025

Within ten minutes, she developed bradycardia, hypotension, and ST changes on monitor. Bradycardia and heart block are very common in RCA OMI. Circulation Research , 114 (12), 18521866. Circulation , 92 (3), 657671. Circulation , 125 (3), 491496. Circulation , 145 (13), 10021019. link] Bentzon, J.

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Cardiomyopathy Myocardial Infarction Defibrillator Bradycardia 75