1,102 results match your criteria: "Second-Degree Atrioventricular Block"
Bradyarrhythmias in patients with embolic stroke of undetermined source: a tight relationship with atrial cardiomyopathy.
Neurol Sci
December 2024
Division of Cardiology, Cardio-Thoracic Department, University Hospital of Verona, Verona, Italy.
Background: Implantable loop recorders (ILRs) have been shown to significantly improve the detection of atrial fibrillation (AF) in patients with embolic stroke of undetermined source (ESUS). The incidence and characterization of bradyarrhythmias in this subset of patients is still unknown.
Methods: All consecutive patients who received ILRs, after an ESUS, between March 2015 and December 2022 in our Center were retrospectively enrolled and analyzed.
Atypical Wenckebach AV Block in the Infra-Hisian Region: Clinical Implications and Management.
Am J Case Rep
December 2024
Department of Cardiac Pacing and Electrophysiology, Fortis Escorts Heart Institute (FEHI), New Delhi, India.
BACKGROUND Second-degree atrioventricular (AV) block is a frequently encountered conduction abnormality on surface electrocardiogram (ECG). However, it does not always imply a block at the AV nodal level. In rare cases, this block can occur below the bundle of His, within the infra-Hisian region of the His-Purkinje system.
View Article and Find Full Text PDFChallenges in the terminology of second-degree atrioventricular block.
Herzschrittmacherther Elektrophysiol
December 2024
Professor of Medicine, University of South Florida, 33606, Tampa, FL, USA.
Article Synopsis
- The terminology for second-degree atrioventricular block has changed over the years, leading to confusion and misinterpretations.
- It's crucial to stick to standard terminology and correctly use eponyms to prevent mistakes in diagnosis.
- Clear communication in medical terms helps ensure accurate understanding and treatment of conditions.
Donepezil and Memantine-Induced Second-Degree Atrioventricular Block: A Case Report.
Hosp Pharm
October 2024
Department of Psychiatry, JSS Medical College & Hospital, JSS Academy of Higher Education and Research, Mysore, Karnataka, India.
Article Synopsis
- Donepezil and memantine are second-generation medications used for managing mild to moderate Alzheimer's disease, acting on different neural pathways to help with cognitive decline.
- Donepezil inhibits acetylcholinesterase, while memantine blocks NMDA receptors, both targeting the central nervous system.
- A case study of an 81-year-old male with Alzheimer's and schizophrenia revealed he developed a second-degree atrioventricular block after taking these drugs, but his condition improved within 2 to 3 weeks after stopping the medications and receiving short-term treatment.
Holter Monitoring Analysis of Women Infected with the Human Immunodeficiency Virus.
Curr HIV Res
November 2024
Department of Cardiology, Beijing Ditan Hospital Affiliated to Capital Medical University, Beijing, 100015, China.
Article Synopsis
- The study aimed to evaluate the heart health of women with HIV using Holter monitoring at Ditan Hospital.
- It analyzed data from 35 female HIV-infected patients, revealing various heart rhythm issues, with the most common being sinus rhythm and various premature beats.
- The findings highlighted that Holter monitoring can detect significant ECG abnormalities in HIV-positive patients, potentially allowing for earlier treatment interventions.
Fetal-hope study: Home monitoring of fetal heart rate in SSA + pregnant women: Rationale and design.
Eur J Obstet Gynecol Reprod Biol
December 2024
Department of Internal Medicine, ASST Fatebenefratelli-Sacco, Milan, Italy; Department of Biomedical and Clinical Sciences, University of Milan, Italy.
Article Synopsis
- About 0.5-1% of women of childbearing age have anti-Ro/SSA and anti-La/SSB antibodies, potentially leading to Neonatal Lupus, primarily manifesting as complete heart block (AVB) in fetuses.
- The study aims to assess the effectiveness of home monitoring of fetal heart rates using a handheld device in pregnant women with these antibodies and to see if early treatment can help.
- Currently, patients are being recruited across 11 Italian centers for a prospective observational study, with regular monitoring and check-ups to track maternal and fetal health outcomes.
Characteristics and one-year outcomes of patients with advanced atrioventricular block in Saudi Arabia: A single-center retrospective cohort study.
Saudi Med J
October 2024
From the Department of Cardiac Sciences (Alqarawi), College of Medicine, King Saud University, and from the Department of Internal Medicine (Alarifi), King Abdullah University Hospital, Riyadh, Kingdom of Saudi Arabia.
Article Synopsis
- This study focused on patients with advanced atrioventricular block (AVB) who underwent pacemaker implantation in Saudi Arabia.
- It analyzed 100 patients, noting a median age of 71, with a considerable percentage (29%) being younger than 60, most of whom had comorbid conditions.
- The findings suggest that many young patients with AVB are not being evaluated for cardiac sarcoidosis, highlighting the need for further research on this issue in the Saudi population.
Panniculitis with fever of unknown origin.
BMJ Case Rep
October 2024
Peadiatrics, Scarborough General Hospital, Scarborough, North Yorkshire, UK.
Article Synopsis
- A case is presented of a young girl with several health issues, including chromosomal deletion, hypothyroidism, heart block, and recurrent fevers, along with subcutaneous nodules diagnosed as panniculitis.
- Diagnosing her fever of unknown origin (FUO) was complicated, requiring input from multiple specialists like geneticists and pediatricians.
- The case highlights the importance of thorough diagnostic processes, including early biopsies, and emphasizes the need for continuous teamwork among medical professionals to improve treatment outcomes for complex pediatric cases.
Unexpected transient atrioventricular block and slow junctional rhythm using pulsed field ablation for slow pathway modification: Excited or cautious for ablators.
Heart Rhythm
September 2024
Cardiac Arrhythmia Center, The First Affiliated Hospital of Ningbo University, Ningbo, China. Electronic address:
Article Synopsis
- This study examines the effectiveness and safety of pulsed field ablation (PFA) for treating atrioventricular nodal reentrant tachycardia (AVNRT), focusing on its impact on dual-pathway electrophysiology.
- All 40 patients achieved acute success with PFA, showing an average total ablation time of 7.9 seconds, and 80% experienced induced slow junctional rhythm; however, there were instances of transient atrioventricular block in 17.5% of patients.
- The study concludes that while PFA is highly effective for slow pathway modification, there are risks of transient AV block, especially when performed close to the His bundle,
Hypothermia and rewarming times during general anesthesia in Hispaniolan Amazon parrots (Amazona ventralis): A comparative study between isoflurane, sevoflurane and desflurane.
Vet Anaesth Analg
October 2024
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA. Electronic address:
Article Synopsis
- - The study aimed to assess how different anesthetics (isoflurane, sevoflurane, desflurane) affect induced hypothermia and rewarming times in Hispaniolan Amazon parrots, while also evaluating their cardiovascular and respiratory responses.
- - Twelve adult parrots were used in a randomized trial where they were anesthetized with the three inhalants, and various temperature-related times during anesthesia were recorded and analyzed.
- - Results showed that all anesthetics induced hypothermia at similar rates, but sevoflurane led to a significantly longer rewarming time compared to desflurane; transient apnea and heart rhythm issues were noted across all treatments.
Enhancing P-wave localization for accurate detection of second-degree and third-degree atrioventricular conduction blocks.
Physiol Meas
September 2024
School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, People's Republic of China.
Article Synopsis
Mobitz type II second-degree atrioventricular block: a commonly overdiagnosed and misinterpreted arrhythmia.
Front Cardiovasc Med
August 2024
Department of Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, United States.
Article Synopsis
- - Mobitz type II second-degree AV block is characterized by an all-or-none conduction with no changes in the PR interval, making the PR interval unchanged after the block essential for diagnosis.
- - Diagnosis requires a steady sinus rate, as factors like vagal surges can create false readings by slowing sinus rate and achieving AV nodal block simultaneously.
- - Correct identification is crucial, as Mobitz type II AVB originates at the His-Purkinje system and often indicates the need for a pacemaker, distinguishing it from other AV block types that can appear similar.
Retrievable dual-chamber leadless pacemaker implant (Aveir DR) in an adult patient with congenital heart disease.
Indian Pacing Electrophysiol J
September 2024
Division of Pediatric Cardiology and Adult Congenital Cardiology, UC Davis Medical Center, Sacramento, USA. Electronic address:
Article Synopsis
- Leadless pacemakers, specifically the Aveir dual-chamber (DR) type, show promise as a safe transvenous pacing option for patients with Adult Congenital Heart Disease (ACHD).
- A case study involved a 26-year-old male with a history of repaired dextro-transposition of the great arteries who required a pacemaker due to heart block and sinus node dysfunction.
- The implantation procedure was successful using the Aveir DR leadless pacemaker with no complications, and follow-up results indicated effective pacing thresholds and overall device performance.
Electrocardiographic abnormalities are associated with seropositive Trypanosoma cruzi infection status using a simplified cardiac diagnostic evaluation in dogs.
J Am Vet Med Assoc
August 2024
1Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX.
Article Synopsis
- - This study aimed to analyze the relationship between heart problems and Trypanosoma cruzi serostatus in dogs by using a straightforward diagnostic process involving blood tests, ECGs, and echocardiograms in 46 dogs at high risk for infection.
- - The results showed that 19 dogs tested positive for T. cruzi antibodies, with some exhibiting heart issues like conduction abnormalities and echocardiographic changes, particularly myxomatous mitral valve disease (MMVD); older seropositive dogs were more likely to have these conditions.
- - The research concluded that while echocardiographic abnormalities alone didn’t help in determining seropositivity, simple tests like ECGs and cardiac troponin I assessments are effective
Cardiac sarcoidosis manifesting with atrioventricular block and intracardiac masses: case report and literature review.
Eur Heart J Case Rep
August 2024
Department of Cardiology Atlanta, Emory University School of Medicine, 100 Woodruff Circle, Atlanta, GA 30322, USA.
Article Synopsis
- Cardiac sarcoidosis (CS) usually presents with heart issues like AV block and arrhythmias, but intracardiac masses are uncommon and lack clear treatment guidelines.
- A 45-year-old woman with symptoms like palpitations and exertional dyspnoea was diagnosed with second-degree AV block and found to have two right atrial masses, later confirmed as CS after surgery.
- Immunosuppressive therapy is the primary treatment for CS-related masses, though surgical removal may be necessary for diagnosis.
Selective his bundle pacing eliminates crochetage sign: A case report.
World J Clin Cases
August 2024
Department of Arrhythmia, Weifang People's Hospital, Weifang 261000, Shandong Province, China.
Article Synopsis
[Atrioventricular block in granulomatosis with polyangiitis (Wegener's granulomatosis). Case report and review of literature].
Rev Med Chil
August 2023
Departamento Cardiovascular, Hospital Clínico Universidad de Chile, Santiago, Chile.
Article Synopsis
- - Granulomatosis with Polyangiitis (GPA) is a systemic vasculitis affecting small to medium blood vessels, primarily impacting the upper airway, lungs, and kidneys, with rare cardiac involvement.
- - A 49-year-old male with a history of GPA presented with shortness of breath, low output symptoms, an extremely low heart rate, and specific ECG changes indicating advanced heart block issues.
- - The case emphasizes the uncommon cardiac complications of GPA, highlighting the need for awareness and consideration of management strategies for patients with this condition experiencing heart-related issues.
Misinterpretation of sleep-induced second-degree atrioventricular block.
World J Cardiol
July 2024
Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States.
Article Synopsis
Impact of left atrial strain on clinical outcomes in patients with permanent pacemaker implantation.
ESC Heart Fail
December 2024
Department of Cardiovascular Medicine, Saga University, Saga, Japan.
Article Synopsis
- This study investigated how pre-procedural left atrial strain (LAS) affects patients undergoing permanent pacemaker implantation (PPI).
- A total of 172 patients were analyzed, and the research found that lower LASr is linked to higher risks of heart failure or cardiovascular death over time.
- The study concluded that decreased LASr before the procedure may indicate a greater risk of long-term complications after receiving a PPI.
A Rare Case of Complete Heart Block and Takotsubo Cardiomyopathy in an Elderly Patient: A Case Report.
Cureus
June 2024
Internal Medicine, New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, USA.
Article Synopsis
- Takotsubo cardiomyopathy (TC) is a heart condition often associated with rapid heart rhythms but is rarely seen alongside complete heart block; the reasons for this connection are not well understood.
- An 83-year-old woman with a history of heart issues experienced fainting and slow heart rate, leading to a diagnosis of complete heart block that required a pacemaker.
- Further heart imaging showed significant heart muscle dysfunction without blocked arteries, indicating Takotsubo cardiomyopathy, raising questions about the mechanisms linking the two conditions.
Simultaneous Occurrence of Transient Complete Heart Block With Acute Lateral Medullary Infarct.
Cureus
May 2024
Cardiology, Townsville University Hospital, Townsville, AUS.
Article Synopsis
A systematic review of the clinical characteristics and course of atrioventricular blocks in hyperthyroidism.
Ann Med
December 2024
Department of Clinical Research, Dresden International University, Dresden, Germany.
Article Synopsis
- - Atrioventricular block (AVB) is uncommon in hyperthyroidism, and this study aimed to clarify its prevalence, types, management, and outcomes through a systematic review of existing literature.
- - The review included 56 studies with 87 patients, revealing that complete heart block (CHB) was the most frequent form of AVB, affecting over 51% of those studied, and only a small number required pacemaker insertion.
- - Findings indicate that while CHB is prevalent, most cases in hyperthyroid patients can be treated effectively with anti-thyroid medications, with limited differences in outcomes based on whether patients received pacing.
Article Synopsis
- * In a study of 2,536 young athletes under 40 with no cardiac history, advanced AVB prevalence was found to be about 0.1%, increasing to 2% in highly trained males; all cases of advanced AVB tested positive for anti-Ro/SSA antibodies.
- * Laboratory tests revealed that immunoglobulin G from athletes with anti-Ro/SSA antibodies inhibited calcium current and reduced calcium channel expression, linking these antibodies directly to
Second-degree atrioventricular block induced by electrical stimulation of transcranial motor-evoked potential: a case report.
JA Clin Rep
June 2024
Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan.
Article Synopsis
- A 71-year-old woman had surgery with transcranial motor-evoked potentials (Tc-MEP) monitoring and showed arrhythmias during the procedure, which are rarely reported.
- Before surgery, she had a known heart condition but had no prior cardiovascular issues.
- This case indicates that Tc-MEP can lead to arrhythmias, highlighting the need for close monitoring of heart activity and blood pressure during such procedures.