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("ECG" OR " EKG") AND "Pathognomonic"

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https://www.readbyqxmd.com/read/29761112/takotsubo-cardiomyopathy-mimicking-stent-thrombosis-after-percutaneous-coronary-intervention
#1
Furqan Khattak, Muhammad Khalid, Ghulam Murtaza, Timir K Paul
Takotsubo cardiomyopathy, also known as "broken heart syndrome," is a transient left ventricular dysfunction associated with stress (usually emotional) induced myocardial injury and stunning. It often presents as myocardial infarction on surface electrocardiogram (EKG). Diagnosis is made by coronary angiography, which rules out coronary artery disease and shows pathognomonic apical ballooning. In this article, we present a case of a 72-year-old woman who initially presented with an ST segment elevation myocardial infarction on EKG...
January 2018: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/29138889/-hypothermia-induced-ecg-changes-characteristic-but-not-specific
#2
G Michels, S Ney, F Hoffmann, J Brugada, R Pfister, K Brockmeier, A Sultan
Hypothermia-induced J‑ or so-called Osborn waves can be detected under therapeutic hypothermia in approximately 20-40% of cases. The occurrence of J‑waves in the context of the targeted temperature management after cardiopulmonary resuscitation is characteristic, but not pathognomonic for hypothermia. An electrocardiographic diagnosis under hypothermia after cardiac arrest should always be done with caution due to the various hypothermia-associated electromechanical changes of the myocardium.
April 2018: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/25312897/chest-wall-myositis-in-a-patient-with-acute-coronary-syndrome
#3
Laila Hussein, Harith Al-Rawi
We describe a case of a 42-year-old man who presented to the emergency department with severe left-sided chest pain and chest tenderness of 1-day duration. The pain was episodic and was aggravated by any chest wall movement. His initial blood tests and ECG were suggestive of acute coronary syndrome (ACS). However, his pattern of pain, lack of response to opiates, raised creatine kinase and signs of pleurisy on chest radiograph raised a suspicion of an alternative diagnosis. The patient showed a dramatic response in pain relief to non-steroidal anti-inflammatory medication...
October 13, 2014: BMJ Case Reports
https://www.readbyqxmd.com/read/23516777/suspected-atrial-wall-rupture-associated-with-acute-myocardial-infarction-a-pathognomonic-ecg-pattern
#4
Vincenzo Marafioti, Vincenzo Carbone, Francesco Manara, Giuseppe Oreto
No abstract text is available yet for this article.
February 2013: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/23516774/pathognomonic-ecg-pattern-of-impending-atrial-rupture
#5
EDITORIAL
Bernard Belhassen
No abstract text is available yet for this article.
February 2013: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/23097480/significance-of-deep-t-wave-inversions-in-asymptomatic-athletes-with-normal-cardiovascular-examinations-practical-solutions-for-managing-the-diagnostic-conundrum
#6
REVIEW
M G Wilson, S Sharma, F Carré, P Charron, P Richard, R O'Hanlon, S K Prasad, H Heidbuchel, J Brugada, O Salah, M Sheppard, K P George, G Whyte, B Hamilton, H Chalabi
Preparticipation screening programmes for underlying cardiac pathologies are now commonplace for many international sporting organisations. However, providing medical clearance for an asymptomatic athlete without a family history of sudden cardiac death (SCD) is especially challenging when the athlete demonstrates particularly abnormal repolarisation patterns, highly suggestive of an inherited cardiomyopathy or channelopathy. Deep T-wave inversions of ≥ 2 contiguous anterior or lateral leads (but not aVR, and III) are of major concern for sports cardiologists who advise referring team physicians, as these ECG alterations are a recognised manifestation of hypertrophic cardiomyopathy (HCM) and arrhythmogenic right ventricular cardiomyopathy (ARVC)...
November 2012: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/20580877/rapid-progression-of-wellens-syndrome-in-the-emergency-department
#7
Brian Donahue, Shu B Chan, Steve Bhandarkar
BACKGROUND: In 1982, Wellens and colleagues described characteristic electrocardiogram (ECG) findings in angina patients virtually pathognomonic for significant stenosis of the proximal left anterior descending coronary artery and associated with a high risk of acute anterior wall myocardial infarction. CASE REPORT: We present the case of a 74-year-old emergency department patient with classic ECG findings of Wellens syndrome and progression to acute ST elevation within 55 min...
October 2012: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/19808440/absence-of-pathognomonic-or-inflammatory-patterns-in-cardiac-biopsies-from-patients-with-brugada-syndrome
#8
Sven Zumhagen, Tilmann Spieker, Julia Rolinck, Hideo A Baba, Günter Breithardt, Werner Böcker, Lars Eckardt, Matthias Paul, Thomas Wichter, Eric Schulze-Bahr
BACKGROUND: Brugada syndrome (BrS) is characterized by the presence of coved ST-segment elevations in the right precordial leads (so-called type I ECG) and additional clinical features. Caused by cardiac ion channel gene mutations, BrS may be associated with ventricular and atrial conduction disturbances as well as ventricular fibrillation. Recent studies have discussed whether BrS is merely a primary electric disorder or whether inflammatory or other histopathologic abnormalities in the right ventricle (RV) underlie the ECG phenotype...
February 2009: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/17547622/occurrence-of-j-waves-in-12-lead-ecg-as-a-marker-of-acute-ischemia-and-their-cellular-basis
#9
Rituparna Shinde, Shinde Rituparna, Suresh Shinde, Shinde Suresh, Chandrashekhar Makhale, Makhale Chandrashekhar, Purvez Grant, Grant Purvez, Sunil Sathe, Sathe Sunil, Manuel Durairaj, M Durairaj, Yash Lokhandwala, Lokhandwala Yash, Jose Di Diego, J M DI Diego, Charles Antzelevitch, Antzelevitch Charles
The "J wave" (also referred to as "the Osborn wave,"the J deflection," or "the camel's hump") is a distinctive deflection occurring at the QRS-ST junction. In 1953, Dr. John Osborn described the "J wave" as an "injury current" resulting in ventricular fibrillation during experimental hypothermia. Although "J Wave" is supposed to be pathognomonic of hypothermia, it is seen in a host of other conditions such as hypercalcemia, brain injury, subarachnoid hemorrhage, cardiopulmonary arrest from over sedation, the Brugada syndrome, vasospastic angina, and idiopathic ventricular fibrillation...
June 2007: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/17262772/takotsubo-syndrome-in-african-american-women-with-atypical-presentations-a-single-center-experience
#10
Himanshu M Patel, Bharat K Kantharia, D Lynn Morris, Shahriar Yazdanfar
BACKGROUND: Takotsubo syndrome is comprised of the clinical presentation of an acute myocardial infarction with electrocardiographic (ECG) changes of acute ischemia, chest pain, positive biomarkers, a pathognomonic left ventricular apical wall motion abnormality, and no culprit coronary disease at cardiac catheterization. HYPOTHESIS: This study aimed at a further definition of the clinical characteristics of this syndrome in African-American (AA) patients based on our experience at a single center...
January 2007: Clinical Cardiology
https://www.readbyqxmd.com/read/16534005/epinephrine-qt-stress-testing-in-the-evaluation-of-congenital-long-qt-syndrome-diagnostic-accuracy-of-the-paradoxical-qt-response
#11
COMPARATIVE STUDY
Himeshkumar Vyas, Joseph Hejlik, Michael J Ackerman
BACKGROUND: A paradoxical increase in the uncorrected QT interval during infusion of low-dose epinephrine appears pathognomonic for type 1 long-QT syndrome (LQT1). We sought to determine the diagnostic accuracy of this response among patients referred for clinical evaluation of congenital long-QT syndrome (LQTS). METHODS AND RESULTS: From 1999 to 2002, 147 genotyped patients (125 untreated and 22 undergoing beta-blocker therapy) had an epinephrine QT stress test that involved a 25-minute infusion protocol (0...
March 21, 2006: Circulation
https://www.readbyqxmd.com/read/14655240/influence-of-electrode-misplacement-on-the-electrocardiographic-signs-of-inferior-myocardial-ischemia
#12
Alain Rudiger, Lukas Schöb, Ferenc Follath
Electrocardiographic (ECG) artifacts resulting from misplacements of electrodes are frequent, difficult to detect, and can become of clinical importance. We investigated 2 healthy volunteers and 3 patients with ECG signs of inferior myocardial scars. We exchanged the peripheral electrodes in a defined manner and investigated the resulting ECG for morphology and possible diagnostic errors. In the volunteers, ECG signs of inferior ischemia could be produced. In the patients with ischemic heart disease, normal ECG without signs of ischemia resulted by placing the electrode of the left leg to the left arm...
November 2003: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/14516281/diagnostic-performance-of-various-qtc-interval-formulas-in-a-large-family-with-long-qt-syndrome-type-3-bazett-s-formula-not-so-bad-after-all
#13
COMPARATIVE STUDY
Jan Brouwer, Maarten P Van Den Berg, Diederick E Grobbee, Jaap Haaksma, Arthur A M Wilde
BACKGROUND: Recently, we identified a novel mutation of SCN5A (1795insD) in a large family with LQTS3. The aim of this study was to assess whether the various proposed corrections of the QT interval to heart rate help to improve the identification of carriers of the mutant gene. METHODS: The study group consisted of 101 adult family members: 57 carriers and 44 noncarriers (mean age 44.6 +/- 14.6 and 40.3 +/- 12.8 years, respectively). In all individuals a 12-lead ECG, exercise ECG, and 24-hour Holter ECG were obtained...
October 2003: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/12471831/-pathogenetic-assessment-of-cardiac-arrhythmia-and-myocardial-ischemia-in-hemodynamic-stroke
#14
A V Foniakin, L A Geraskina, Z A Suslina
330 patients with ischemic stroke entered the trial. They were divided into two groups: 72 (21.8%) patients with hemodynamic stroke (group 1) and the rest 258 (78.2%) patients with other pathogenetic subtypes of stroke (group 2). Heart rhythm and myocardial ischemia were studied using ECG and Holter monitoring. Electrocardiographically, hemodynamic stroke is characterized by frequent ventricular extrasystole, sick sinus syndrome and transient atrioventricular block of the second and third degree with pauses 2 s and longer, ventricular fibrillation and painless myocardial ischemia...
2002: Klinicheskaia Meditsina
https://www.readbyqxmd.com/read/10652906/hypertensive-heart-disease
#15
REVIEW
P C Manoria, P Manoria
Hypertensive heart disease (HHD) is a common problem in clinical practice. Left ventricular hypertrophy (LVH) is pathognomonic of HHD. Echo-Doppler study is the modality of choice to document cardiac involvement in hypertension. 'Radiology of chest and electrocardiography (ECG) are highly insensitive. Magnetic resonance imaging (MRI) produces similar results like echo but is not cost-effective. LVH is not merely related to haemodynamic load but several other factors are also involved in its genesis. LVH is a powerful and independent prognostic determinant for future cardiovascular and coronary events...
March 1999: Journal of the Indian Medical Association
https://www.readbyqxmd.com/read/10618355/diagnosis-of-apical-hypertrophic-cardiomyopathy-using-magnetic-resonance-imaging
#16
T Ibrahim, M Schwaiger
Apical hypertrophic cardiomyopathy is an uncommon variant of non-obstructive hypertrophic cardiomyopathy with low prevalence outside East Asia. A case is reported of a non-Asian (European) 51 year old man with characteristic ECG and morphological changes of apical hypertrophic cardiomyopathy. Although the patient underwent catheterisation three years previously because of suggested coronary ischaemic heart disease, apical hypertrophic cardiomyopathy was not diagnosed. More recently, a regional wall motion abnormality was noticed at the apex on echocardiography...
January 2000: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/9490993/electrocardiographic-manifestations-and-differential-diagnosis-of-acute-pericarditis
#17
REVIEW
M A Marinella
Acute pericarditis has many potential etiologies and typically presents as a sharp central chest pain that worsens with recumbency and is relieved by leaning forward. The pathognomonic physical finding of acute pericarditis is the pericardial friction rub, which is usually auscultated along the lower left sternal border. The electrocardiogram (ECG) is a useful, simple tool that may aid in the diagnosis of acute pericarditis. Typical ECG findings include diffuse concave-upward ST-segment elevation and, occasionally, PR-segment depression...
February 15, 1998: American Family Physician
https://www.readbyqxmd.com/read/9005889/a-new-experimental-model-of-isolated-myocardial-ischemic-injury-ecg-findings-of-acute-isolated-right-ventricular-ischemic-injury
#18
P Fantidis, I Coma-Canella, M J Peinado, A Padrón, J L Lopez-Sendón
A new experimental porcine model for creating selective ischemia of a specific part of the myocardium while the rest of the myocardium remains free of ischemia has been used to study the electrocardiographic (ECG) changes deriving from selective ischemia of the right ventricular (RV) free wall. A patch was stitched to the ventricle to produce selective myocardial ischemic injury. In a preliminary study of nine pigs, selective ischemia of the left ventricular free wall in five and of the RV free wall in four animals was induced, and a postmortem dye injection was performed to evaluate blood flow in the area of ischemia...
January 1997: Journal of Electrocardiology
https://www.readbyqxmd.com/read/8328184/-congenital-aneurysm-of-the-left-atrial-wall-a-case-report
#19
T Walter, S Kösling, B Krosse, M Mochalski, L Heidrich
An intrapericardial aneurysm of the left atrial wall in a 28-year-old man is reported. This is a rare congenital anomaly. The patients are usually identified by clinical signs, when complications such as cardiac arrhythmias and systemic embolism occur. Clinical findings including the ECG are non-specific. Cardiomegaly and unusual configuration of the heart are consistantly found, but are not pathognomonic. The diagnosis is usually confirmed by angiocardiography. Echocardiography, computed tomography and/or MRI can contribute to the diagnosis...
May 1993: Zeitschrift Für Kardiologie
https://www.readbyqxmd.com/read/6636936/-congenital-aneurysms-of-the-left-atrium-with-intact-pericardium-value-of-diagnostic-methods-for-recognition-prognosis-and-therapy
#20
F Hentrich, G Schramm, O Galal, J Stoermer, J C Reidemeister
An intrapericardial aneurysm of the left atrial appendage in a 7-year-old girl is reported. Review of the 36 cases described up to now reveals that there is no specific age for this disease. It is therefore questioned whether this defect is really congenital in origin. Systemic embolism and serious rhythm disturbances are the most common complications; the younger the patient, the less likely they are to occur. Systemic embolism has only been described in the case of aneurysms located at the left atrial appendage, not in aneurysms of other parts of the left atrial wall...
September 1983: Zeitschrift Für Kardiologie
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