111 results match your criteria: "Lown-Ganong-Levine Syndrome"

Article Synopsis
  • * It affects about 0.1%-0.3% of people, indicating that some individuals have extra conduction pathways in their hearts, which can be seen on an electrocardiogram (ECG) during normal heart rhythm.
  • * The case report focuses on a young man with a dangerously high heart rate and symptoms of sweating and faintness, detailing the emergency management and discovery of the underlying cause of his
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  • * Anesthetics such as propofol, sevoflurane, and certain opioids are deemed safe, while drugs like ketamine and pethidine should be avoided due to their effects on the heart.
  • * It's important to have a detailed anesthetic strategy and work closely with cardiologists to ensure patient safety and manage potential complications effectively.
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Article Synopsis
  • Lown-Ganong-Levine syndrome is characterized by a short PR interval, normal QRS complex, and episodes of rapid heart rate, resulting from accessory pathways connecting the atria and the AV node or His bundle.
  • A 17-year-old male patient showed abnormal ECG patterns indicative of tachycardia, with unique conduction intervals that did not respond as expected to adenosine, which usually influences heart conduction.
  • Catheter ablation in this patient normalized his conduction intervals and demonstrated that the accessory pathways were indeed contributing to his condition, supporting the diagnosis of Lown-Ganong-Levine syndrome.
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Country cardiograms case 41.

Can J Rural Med

January 2012

Department of Medicine, Dalhousie University, Halifax, NS. brent .mcgrath

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Article Synopsis
  • A 3-month-old boy was hospitalized due to heart failure and irregular heart rhythms, specifically dysrhythmia.
  • He was diagnosed with isolated left ventricular noncompaction, a condition affecting the heart's structure.
  • An electrocardiogram revealed a short PR interval and a normal QRS complex, suggesting either Lown-Ganong-Levine syndrome or improved conduction in the heart's atrioventricular node after treating a type of fast heartbeat.
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Electrocardiographic changes in patients with spontaneous pneumothorax.

J Physiol Pharmacol

December 2008

Department of Internal Medicine, Pneumology and Allergology, Warsaw Medical University, Warsaw, Poland.

Article Synopsis
  • The study aimed to assess the prevalence of ECG abnormalities in 40 patients with spontaneous pneumothorax, with an average age of 43.7 years.
  • It found that heart rates were notably higher in patients before lung re-expansion, and certain ECG abnormalities, such as left and right axis deviations, were present in a subset of patients.
  • The research concluded that significant ECG abnormalities are common in pneumothorax cases, particularly in those with substantial right-sided pneumothorax.
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Article Synopsis
  • - A 37-year-old male with a family history of sudden cardiac deaths experiences nocturnal tachycardia and syncopes, indicating a potential risk for sudden cardiac death as suggested by his short PQ and QT intervals.
  • - Electrocardiographic analysis reveals significant shortening of these intervals, raising concerns about an unidentified variant of Lown-Ganong-Levine Syndrome or a new syndrome altogether.
  • - The study emphasizes the importance for physicians to conduct thorough measurements of cardiac electrical parameters in patients displaying signs of cardiac pathology.
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Ablation therapy of supraventricular tachycardia in elderly persons.

Am J Geriatr Cardiol

May 2005

Department of Cardiovascular Disease, Florida Hospital, Orlando, FL,USA.

Article Synopsis
  • Ablation for supraventricular tachycardia in older patients is tough due to fragile heart structures and existing health issues, making them more vulnerable to complications.
  • The review discusses advanced techniques for mapping and ablation, focusing on creating accurate ablation lines and safer methods for treating atrial fibrillation.
  • A new rapid ablation technique is introduced, which aims to provide a permanent cure for atrioventricular nodal re-entry tachycardia.
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Lown-Ganong-Levine syndrome in pregnancy.

Obstet Gynecol

December 2003

Department of Obstetrics and Gynecology, St. Mary's Health Center, Saint Louis University School of Medicine, St. Louis, Missouri 63117, USA.

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  • * MRI scans of his brain showed typical signs of Fabry disease alongside other symptoms like skin lesions (angiokeratoma), mild protein loss in urine, and swelling in the legs (lymphoedema).
  • * Additional health issues included a heart condition with increased muscle mass (myocardial hypertrophy) and a pre-excitation syndrome affecting heart rhythm.
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Article Synopsis
  • - The authors review advancements in understanding ventricular pre-excitation and its clinical forms, including Wolff-Parkinson-White and Lown-Ganong-Levine syndromes, through historical and contemporary medical literature.
  • - They discuss electrophysiological mechanisms of abnormal electrical pathways in the heart, highlighting how new technologies, such as radiofrequency and electrostimulation, are used to detect and treat these irregularities.
  • - Key differences in electrical conduction are illustrated, particularly how anomalous pathways lead to earlier ventricular activation compared to normal conditions, impacting the presentation of related tachycardias.
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Article Synopsis
  • Sudden death in ventricular preexcitation (VP) syndrome, particularly related to atrial fibrillation, was studied in a group of 273 young individuals, revealing that 3.6% had VP, primarily Wolff-Parkinson-White (WPW) and Lown-Ganong-Levine (LGL) syndromes.* -
  • Six of the ten identified cases of VP experienced no prior symptoms before sudden death, and notable pathological findings included various accessory AV pathways located close to the heart's endocardium.* -
  • The research suggests that isolated atrial myocarditis may contribute to triggering atrial fibrillation leading to sudden death, emphasizing the potential for catheter ablation given the frequent left accessory pathways
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  • Patients with bundle-branch block and ischemic heart disease have poor outcomes, and there's no clear method for detecting transient ischemia in these cases.
  • The study evaluated the QRS complex and ST-segment changes in 29 patients with bundle-branch block during elective coronary angioplasty, comparing them to control patients without this condition.
  • Results showed that patients with bundle-branch block exhibited greater changes in QRS-vector response during coronary occlusion, and a change in ST vector magnitude greater than 100 microV is proposed as a reliable indicator of significant ischemia in these patients.
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Article Synopsis
  • Cardiac conduction abnormalities, like Wolff-Parkinson-White and Lown-Ganong-Levine syndromes, are linked to families with Leber's hereditary optic neuropathy (LHON).
  • In a study of Finnish LHON patients, 14 out of 163 (9%) showed these syndromes, suggesting a higher prevalence in this group.
  • A similar analysis of 35 Japanese LHON families found that 5 out of 63 individuals (8%) also displayed these syndromes, indicating that this phenomenon might not be exclusive to Finland, but further research is needed to understand the genetic or reporting factors involved.
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Article Synopsis
  • Ventricular preexcitation syndromes (VPS) in children can complicate diagnosis and treatment due to changes in clinical presentation and ECG findings; a study observed 58 cases over three years.
  • The most common type was WPW syndrome type B (30%), with other cases showing Mahaim pathways and Lown-Ganong-Levine syndrome; symptoms often prompted diagnosis, while some cases were identified through routine ECG.
  • Treatment strategies varied by age, with digoxin and propranolol recommended for younger children with paroxysmal supraventricular tachycardia; careful monitoring and further testing, including Holter tests and electrophysiology, are crucial to preventing severe arrhythmias.
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