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Medical Xpress - Cardiology
DECEMBER 5, 2024
Sudden cardiac arrest may occur in various conditions when someone, while active (playing basketball or walking with friends), collapses and passes out. This may be caused by a lethal arrhythmia, which is when the heart beats abnormally and does not efficiently pump anymore.
DAIC
MARCH 1, 2024
Photo by Cedars-Sinai milla1cf Fri, 03/01/2024 - 08:25 March 1, 2024 — Two new studies by Cedars-Sinai investigators support using artificial intelligence (AI) to predict sudden cardiac arrest-a health emergency that in 90% of cases leads to death within minutes.
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DAIC
JANUARY 19, 2024
Chugh’s leadership in arrhythmia research and care is extraordinary,” said Eduardo Marbán, MD, PhD , executive director of the Smidt Heart Institute. Although “sudden cardiac arrest” and “heart attack” are often mistaken to be the same, the conditions are quite different.
105 
HeartRhythm
JANUARY 6, 2025
Sudden cardiac arrest (SCA) risk stratification in patients with mitral valve prolapse (MVP) may be complicated by other potential causes of arrhythmia.
Dr. Smith's ECG Blog
SEPTEMBER 16, 2024
While on telemetry monitoring he suffered cardiac arrest and was resuscitated. What ECG finding may have contributed to (or precipitated) the cardiac arrest? Learning points : Takotsubo can lead to cardiac arrest from ventricular arrhythmia. There are no clear signs of OMI. There is a prolonged QTc.
Dr. Smith's ECG Blog
JULY 25, 2024
But cardiac arrest is a period of near zero flow in the coronary arteries and causes SEVERE ischemia. After cardiac arrest, I ALWAYS wait 15 minutes after an ECG like this and record another. See these related cases: Cardiac arrest, defibrillated, diffuse ST depression and ST Elevation in aVR.
124 
HeartRhythm
JUNE 4, 2024
Energy drinks potentially can trigger life-threatening cardiac arrhythmias. It has been postulated that the highly stimulating and unregulated ingredients alter heart rate, blood pressure, cardiac contractility, and cardiac repolarization in a potentially proarrhythmic manner.
Circulation
NOVEMBER 11, 2024
The targeted Automated External Defibrillator (AED) program in the Sao Paulo Metro has yielded promising results in improving survival rates for individuals experiencing out-of-hospital cardiac arrest (OHCA) due to ventricular arrhythmias.
American College of Cardiology
DECEMBER 18, 2024
He then discusses sudden cardiac arrest and death in competitive and recreational athletes. In this weeks View, Dr. Eagle looks at what adult cardiologists should know about congenital heart disease patients.
DAIC
MAY 30, 2024
Robotic Magnetic Navigation introduces the benefits of robotic precision and safety to cardiac ablation, a common minimally invasive procedure to treat arrhythmias. When left untreated, arrhythmias may significantly increase the risk of stroke, heart failure, and sudden cardiac arrest.
105 
Frontiers in Cardiovascular Medicine
JANUARY 10, 2024
Introduction The use of venoarterial extracorporeal membrane oxygenation (VA-ECMO) in extracorporeal cardiopulmonary resuscitation (ECPR) in selected patients after out-of-hospital cardiac arrest (OHCA) is an established method if return of spontaneous circulation cannot be achieved.
Ken Grauer, MD
JUNE 27, 2024
He developed cardiac arrest shortly after the ECG in Figure-1 was recorded. What is the most likely cause of this arrhythmia? C ASE C onclusion: As noted above — today's patient developed cardiac arrest shortly after arrival in the ED. QUESTIONS: How would YOU interpret the ECG in Figure-1 ?
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Dr. Smith's ECG Blog
APRIL 29, 2020
A 60-something woman presented after a witnessed cardiac arrest. This is commonly found after epinephrine for cardiac arrest, but could have been pre-existing and a possible contributing factor to cardiac arrest. Final Diagnosis: Cardiac Arrest due to Torsades from long QT of unknown etiology.
HeartRhythm
OCTOBER 7, 2024
Arrhythmias can lead to cardiac arrest (CA) and heart failure. When intractable, heart transplant (HTX) can become the only viable treatment. This rare, high-risk cohort has not been reported as a distinct group.
Dr. Smith's ECG Blog
JUNE 5, 2024
IMPRESSION: The finding of sinus bradycardia with 1st-degree AV block + marked sinus arrhythmia + the change in PR interval from beat #5-to-beat #6 — suggests a form of vagotonic block ( See My Comment in the October 9, 2020 post in Dr. Smith's ECG Blog ). Initial high sensitivity troponin I returned at 6ng/L (normal 0.20
122 
DAIC
JUNE 11, 2024
“With the Genesis RMN system, we now have an unprecedented level of precision and control during cardiac ablation procedures, allowing us to target arrhythmias with unmatched accuracy while minimizing risk to our patients.” added Giuseppe Russo, General Manager of the Hospital Santa Maria della Pietà.
81 
DAIC
JUNE 19, 2024
If VT is not treated, it can lead to cardiac arrest, which is when the heart stops beating. In fact, VT is the most common cause of sudden cardiac arrest. Patients may feel a fluttering in the chest, chest pain, shortness of breath and dizziness or lightheadedness as a result. Q: How is VT typically treated?
128 
DAIC
DECEMBER 27, 2023
With the unveiling of the Genesis System, Baptist Health Lexington has become the first in Kentucky, and one of the first in the world, to provide the latest advancement in robotic technology to treat cardiac arrhythmias. “We For more information: www.stereotaxis.com If you enjoy this content, please share it with a colleague
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Dr. Smith's ECG Blog
JULY 21, 2024
However, he suddenly developed a series of malignant ventricular arrhythmias. Below are printouts of some of the arrhythmias recorded. This time, the arrhythmia did not spontaneously terminate — but rather degenerated to VFib, requiring defibrillation. The arrhythmia starts with a PVC having a short coupling interval.
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Circulation: Arrhythmia and Electrophysiology
JANUARY 29, 2024
Circulation: Arrhythmia and Electrophysiology, Ahead of Print. BACKGROUND:There is no specific treatment for sudden cardiac arrest (SCA) manifesting as pulseless electric activity (PEA) and survival rates are low; unlike ventricular fibrillation (VF), which is treatable by defibrillation.
Dr. Smith's ECG Blog
FEBRUARY 2, 2024
We periodically review this intriguing ECG finding that is best known for its association with hypothermia — but which may also be seen in association with a number of other entities, including acute infarction and cardiac arrest. My Comment addresses a few additional aspects of this phenomenon.
138 
MIBHS
OCTOBER 31, 2024
Arrhythmias (Irregular Heartbeats) Persistent abnormal heart rhythms can disrupt the heart’s pumping efficiency, eventually causing it to enlarge to maintain blood flow. Cardiac Arrest or Sudden Death: Cardiomegaly increases the risk of life-threatening arrhythmias, which can cause sudden cardiac arrest.
Ken Grauer, MD
OCTOBER 6, 2023
PEARL # 2: It is important to be aware that " not every arrhythmia obeys the rules!" As a result — We sometimes need to think "out of the box" in order to come up with the most plausible explanation for a given arrhythmia. PEARL # 3: Although ATach is usually a fairly regular atrial rhythm — there may at times be some irregularity.
160 
MIBHS
FEBRUARY 28, 2025
Arrhythmias: Genetic mutations can also predispose individuals to irregular heart rhythms, such as atrial fibrillation or long QT syndrome, which may increase the risk of stroke or sudden cardiac arrest. Mutations in specific genes often cause hypertrophic cardiomyopathy and dilated cardiomyopathy.
Dr. Smith's ECG Blog
OCTOBER 8, 2024
Click here to sign up for Queen of Hearts Access Here is the cardiologist's formal interpretation : "sinus rhythm with marked sinus arrhythmia, left ventricular hypertrophy with repolarization abnormality, and anteroseptal infarct, age undetermined." About 45 minutes after the second EKG, the patient was found in cardiac arrest.
123 
Frontiers in Cardiovascular Medicine
JANUARY 15, 2024
Introduction The use of venoarterial extracorporeal membrane oxygenation (VA-ECMO) in extracorporeal cardiopulmonary resuscitation (eCPR) has emerged as a treatment option for selected patients who are experiencing refractory cardiac arrest (CA).
DAIC
JANUARY 24, 2024
Barr’s death at 39 from sudden cardiac arrest was caused by mitral valve prolapse—a heart valve defect that can affect the heart’s ability to pump blood. Chikwe: It reflects Cedars-Sinai’s unique expertise in arrhythmia management, imaging and treatment for mitral valve conditions. It can, in some cases, lead to death.
105 
HeartRhythm
APRIL 30, 2024
Cardiac rearrest soon after successful resuscitation is a substantial challenge, rendering it a high priority for improving cardiac arrest outcomes. Rearrest is commonly caused by VT/VF or pulseless electrical activity (PEA), each with different underlying mechanisms and diametrically opposed treatments.
Frontiers in Cardiovascular Medicine
JUNE 3, 2024
During the intravenous lacosamide infusion, the patient developed sudden cardiac arrest caused by ventricular arrhythmias necessitating resuscitation. Of note, the patient had a family history of sudden cardiac death.
Dr. Smith's ECG Blog
JANUARY 2, 2025
See this post: How a pause can cause cardiac arrest 2. In this specific case, Left Bundle Branch (LBB) area pacing was pursued to achieve cardiac resynchronization. There is ventricular bigeminy with bizarre appearing wide T-waves See even more striking cases of this at the bottom of the post. The plan: 1.
116 
Dr. Smith's ECG Blog
JUNE 23, 2024
This is a critically important determination because of the 2017 AHA/ACC/HRS Guidelines for Management of Patients with Ventricular Arrhythmias and the Prevention of Sudden Cardiac Death. Frick's presentation in today's case is its simplicity in conveying a critically important finding affecting the outcome of this patient.
118 
Open Heart
JULY 5, 2022
Automated external defibrillators (AEDs) and implantable cardioverter defibrillators (ICDs) are used to treat life-threatening arrhythmias. AEDs and ICDs use shock advice algorithms to classify ECG tracings as shockable or non-shockable rhythms in clinical practice.
Dr. Smith's ECG Blog
MAY 3, 2024
Some patients have baseline RBBB with LAFB, but in patients with likely ACS, these are associated with severe infarction with cardiac arrest, cardiogenic shock or impending shock. Suffice it to say that, "The heart does whatever it will do when a patient is about to arrest". RBBB + LAFB in the setting of ACS is very bad.
HeartRhythm
JULY 22, 2024
Rarely, implantation of cardiac implantable electronic devices (CIEDs) becomes necessary.1 1 A rare but significant issue in post-OHT patients is ventricular arrhythmias, in extreme cases leading to cardiac arrest and implantation of an implantable cardioverter-defibrillator (ICD) for secondary prevention.
Circulation: Arrhythmia and Electrophysiology
DECEMBER 15, 2023
Circulation: Arrhythmia and Electrophysiology, Ahead of Print. Although there is consensus on the management of patients with Brugada Syndrome with high risk for sudden cardiac arrest, asymptomatic or intermediate-risk patients present clinical management challenges.
HeartRhythm
JUNE 4, 2024
Establishing a probable cause of an arrhythmia includes inquiring about a potential exposure to toxins or medications. An increasing number of substances consumed as “food” are found to have unwanted cardiac effects, prompting the consideration of a novel subcategory in a patient’s clinical history intake: arrhythmogenic foods.1–3
Dr. Smith's ECG Blog
OCTOBER 23, 2023
Edited by Bracey, Meyers, Grauer, and Smith A 50-something-year-old female with a history of an unknown personality disorder and alcohol use disorder arrived via EMS following cardiac arrest with return of spontaneous circulation. T-wave alternans and the susceptibility to ventricular arrhythmias. Pacing Clin Electrophysiol.
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Ken Grauer, MD
JULY 9, 2023
Blood was drawn , and the patient was promptly placed in a room to be seen — but on entering, the ED physician found her unresponsive in cardiac arrest. Do you see any indication on this ECG of WHY this patient was about to arrest? Is there any indication on this ECG of WHY this patient shortly after had a cardiac arrest?
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Dr. Smith's ECG Blog
OCTOBER 25, 2023
Polymorphic Ventricular Tachycardia Long QT Syndrome with Continuously Recurrent Polymorphic VT: Management Cardiac Arrest. A New Seizure in a Healthy 20-something More cases of long QT not measured correctly by computer (these are all fascinating ECGs/cases): Bupropion Overdose Followed by Cardiac Arrest and, Later, ST Elevation.
124 
MIBHS
JULY 31, 2024
Arrhythmias (Abnormal Heart Rhythms) Stress hormones can disrupt the signals that regulate your heartbeat, leading to arrhythmias – abnormal heart rhythms that cause your heart to beat too fast, too slow, or irregularly.
Frontiers in Cardiovascular Medicine
DECEMBER 13, 2023
Introduction Sudden cardiac arrest is a major cause of morbidity and mortality worldwide and remains a major public health problem for which better non-invasive prediction tools are needed. The individual relationship between fatal arrhythmias and cardiac function abnormalities in predicting cardiac death risk has rarely been explored.
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Dr. Smith's ECG Blog
APRIL 8, 2016
IV administration of potassium is indicated when arrhythmias are present or hypokalemia is severe (potassium level of less than 2.5 If cardiac arrest from hypokalemia is imminent (i.e., malignant ventricular arrhythmias are present), rapid replacement of potassium is required. mEq/L, and 10 mEq would increase it by 3.3
52 
Open Heart
JUNE 5, 2024
SMuRF-less patients were more likely to present with cardiac arrest (6.6% vs 3.6%, p=0.019) and arrhythmia (11.2% At 30 days, mortality, myocardial infarction, revascularisation and major adverse cardiac and cerebrovascular events did not differ between the groups. vs 25.4%, p<0.001). vs 9.9%, p=0.029).
HeartRhythm
SEPTEMBER 10, 2023
A few decades ago all sudden cardiac arrests with documented ventricular fibrillation (VF) and structurally normal hearts were diagnosed as idiopathic ventricular fibrillation (IVF).
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