keyword
Keywords ("ECG" OR "EKG") AND ("Osborne...

("ECG" OR "EKG") AND ("Osborne Wave")

https://read.qxmd.com/read/24640526/giant-j-wave-and-brugada-like-pattern-in-a-patient-with-severe-hypothermia
#21
JOURNAL ARTICLE
Ewelina Kowalczyk, Jarołsaw D Kasprzak, Piotr Lipiec
We describe a patient with severe hypothermia, in whom the electrocardiogram showed giant J-waves, also known as Osborn waves, distinguishable in the inferior and anterolateral leads. Moreover, a Brugada-like pattern was also visible in leads V2 and V3. The presented case and ECG findings may contribute to the discussion about the pathophysiologic mechanism underlying Brugada syndrome and giant J-wave.
February 2014: Acta Cardiologica
https://read.qxmd.com/read/24513157/cardiac-arrest-due-to-accidental-hypothermia-a-20-year-review-of-a-rare-condition-in-an-urban-area
#22
JOURNAL ARTICLE
A Schober, F Sterz, C Handler, I Kürkciyan, A Laggner, M Röggla, M Schwameis, C Wallmueller, C Testori
BACKGROUND: Accidental hypothermic cardiac arrest is associated with unfortunate prognosis and large studies are rare. We therefore have performed an outcome analysis in patients that were admitted to Vienna University Hospital with the diagnosis of accidental hypothermic cardiac arrest. METHODS: This study employed a retrospective outcome analysis of prospectively collected data in a selected cohort of hypothermic cardiac arrest patients. We screened 3800 cardiac arrest patients, treated at our department between 1991 and 2010, for eligibility...
June 2014: Resuscitation
https://read.qxmd.com/read/23466597/dynamic-j-point-elevation-associated-with-epileptic-hemiplegia-the-osborn-wave-of-todd-s-paralysis
#23
JOURNAL ARTICLE
Erik O'Connell, Nevin Baker, Gopi Dandamudi, Steven Steinhubl
THIS CASE REPORT EXPOSES A PHENOMENON WHICH, ALTHOUGH PROPOSED, HAS NOT BEEN DESCRIBED IN CLINICAL LITERATURE: transient postictal hemiplegia (Todd's paralysis) with concomitant electrocardiographic J-point deflection (Osborn waves). Although typically associated with hypothermia, a prominent J-wave on the electrocardiogram (ECG) results from a transmyocardial voltage gradient during ventricular repolarization. Rarely, the Osborn wave may be observed in a non-hypothermic setting such as hypercalcemia or cerebral hemorrhage...
January 2013: Case Reports in Neurology
https://read.qxmd.com/read/23348543/osborn-waves-during-therapeutic-hypothermia-in-a-young-st-acs-patient-after-out-of-hospital-cardiac-arrest
#24
JOURNAL ARTICLE
Filip M Szymański, Grzegorz Karpiński, Anna E Płatek, Grzegorz Opolski
A 37 year-old male patient was admitted to the intensive care unit after an out-of-hospital cardiac arrest due to ventricular fibrillation in a course of ST-segment elevation acute coronary syndrome. On admission, the patient was unconscious with a Glasgow Coma Scale (GCS) score of 5. A percutaneous coronary intervention and mild therapeutic hypothermia (HT), defined as maintaining body temperature between 32°C and 34°C, were performed. During HT on ECG, we observed Osborn waves, which resolved spontaneously after re-warming...
2013: Kardiologia Polska
https://read.qxmd.com/read/22673196/electrocardiographic-changes-in-therapeutic-hypothermia
#25
JOURNAL ARTICLE
Corina L Rolfast, Erik J Lust, Carel C de Cock
INTRODUCTION: During therapeutic hypothermia (TH), electrocardiographic (ECG) abnormalities such as Osborn waves and/or ST-segment elevation have been described. However, the incidence and prognostic value of these ECG changes are uncertain given the small-scale studies that have been carried out to date. The aim of this study is to further evaluate the electrocardiographic changes during TH. METHODS: During a period of 3 years, 81 patients (age 63 ± 14 years) were included retrospectively...
June 6, 2012: Critical Care: the Official Journal of the Critical Care Forum
https://read.qxmd.com/read/22516141/hypothermia-masquerading-as-pericarditis-an-unusual-electrocardiographic-analogy
#26
JOURNAL ARTICLE
Lovely Chhabra, David H Spodick
Hypothermia is one of the most common environmental emergencies encountered by physicians that can be associated with a variety of electrocardiographic (ECG) abnormalities. The classic and well-known ECG manifestations of hypothermia include the presence of J (Osborne) waves, interval (PR, QRS, QT) prolongation, varied T-wave abnormalities, and atrial and ventricular arrhythmias. There are less well-defined and known ECG signs of hypothermia that, in fact, may simulate findings of acute coronary ischemia. We describe a case of hypothermia with associated ECG findings mimicking pericarditis...
July 2012: Journal of Electrocardiology
https://read.qxmd.com/read/21584805/j-deflections-on-ecg-in-severe-hypothermia-and-hypokalaemia-a-case-report
#27
JOURNAL ARTICLE
T Sentürk, C Ozbek, D Tolga, A R Kazazoğlu
The J wave, also known as Osborn wave, is a deflection that can be observed on the surface ECG as a late delta wave, seen at the end of the QRS complex. In this case, a 75-year-old woman, after 1 day of continuous haemodialysis, showed a marked hypothermia (28.5°C) and severe hypokalaemia (1.7 mEq/l). Bradycardia was seen on the monitor and J waves were recognised on the ECG recording. After appropriate replacement of potassium and treatment of hypothermia, the J waves disappeared spontaneously.
February 2013: Netherlands Heart Journal
https://read.qxmd.com/read/21373321/diffuse-st-segment-depression-from-hypothermia
#28
JOURNAL ARTICLE
Hao Wang, Joseph Hollingsworth, Simon Mahler, Thomas Arnold
Hypothermia is known to cause specific electrocardiographic (EKG) changes such as Osborne waves and bradycardia. We report diffuse ST segment depression, an atypical EKG change, in a patient with a core temperature of 29.4°C (85°F). This patient had no previous cardiovascular pathology, and his EKG changes resolved gradually with aggressive warming. We also discuss the pathophysiology and clinical significance of ST depression in the general population and the typical EKG changes in hypothermia patients.
2010: International Journal of Emergency Medicine
https://read.qxmd.com/read/20153265/j-wave-syndromes
#29
REVIEW
Charles Antzelevitch, Gan-Xin Yan
The J wave, also referred to as an Osborn wave, is a deflection immediately following the QRS complex of the surface ECG. When partially buried in the R wave, the J wave appears as J-point elevation or ST-segment elevation. Several lines of evidence have suggested that arrhythmias associated with an early repolarization pattern in the inferior or mid to lateral precordial leads, Brugada syndrome, or arrhythmias associated with hypothermia and the acute phase of ST-segment elevation myocardial infarction are mechanistically linked to abnormalities in the manifestation of the transient outward current (I(to))-mediated J wave...
April 2010: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://read.qxmd.com/read/19786885/osborn-waves-in-severe-accidental-hypothermia-secondary-to-prolonged-immobilization-and-malnutrition
#30
JOURNAL ARTICLE
Francesco Rotondi, Fiore Manganelli, Fiore Candelmo, Luciano Marino, Emilio Di Lorenzo, Ferdinando Alfano, Giovanni Stanco, Giuseppe Rosato
We report the case of a 77-year-old man, in whom accidental hypothermia was secondary to prolonged immobilization and malnutrition. The electrocardiogram showed typical Osborn waves, which disappeared with the rewarming of the patient. The diagnosis of hypothermia is easy in patients with a history of prolonged exposure to a cold environment but accidental hypothermia may also occur as a consequence of prolonged immobilization and malnutrition. ECG analysis is very important for a correct and fast diagnosis...
July 2010: Journal of Cardiovascular Medicine
https://read.qxmd.com/read/19367059/hypothermia-with-osborn-waves-in-parkinson-s-disease
#31
JOURNAL ARTICLE
Yoshihide Sehara
Autonomic dysfunction in patients with Parkinson's disease has been recognized since the original description by James Parkinson in 1817. In the present case, an 80-year-old woman who had been diagnosed with Parkinson's disease 3 years earlier (Hoehn and Yahr stage III) was admitted with a few days history of lethargy and bradykinesia. She lived in a heated house and used an electric blanket at night. On examination, her core temperature was 29.7 degrees C. Her initial ECG showed sinus bradycardia, QT prolongation, and Osborn waves, which disappeared after rewarming...
2009: Internal Medicine
https://read.qxmd.com/read/19332967/escherichia-coli-septic-shock-masquerading-as-st-segment-elevation-myocardial-infarction
#32
JOURNAL ARTICLE
Juan D Martinez, Rajesh V Babu, Gulshan Sharma
Elevated cardiac biomarkers in conjunction with electrocardiographic (ECG) changes are valuable in diagnosing acute coronary syndrome (ACS). Elevated troponin I (TnI), while commonly seen in ACS, can also occur in entities such as sepsis and pulmonary thromboembolic disease. Raised TnI levels in patients with sepsis result from various mechanisms, including hypoperfusion or direct extension of infection to cardiac tissue, and can also serve as an important prognostic indicator. Electrocardiographic changes in sepsis are not as well described...
March 2009: Postgraduate Medicine
https://read.qxmd.com/read/18301847/electrocardiographical-case-j-wave-and-presyncope-in-a-middle-aged-woman
#33
JOURNAL ARTICLE
N Namboodiri, S Bohora, S K Dora, J A Tharakan
A 46-year-old woman presented with three episodes of presyncope in the previous two days. Electrocardiogram (ECG) showed sinus rhythm, relatively short QT interval (QTc of 340 msec) and prominent J-waves in the inferior leads. Biochemical evaluation revealed serum calcium of 17.4 mg/dL, phosphorus of 2.3 mg/dL and alkaline phosphatase of 533 IU/ml. She was managed with saline diuresis followed by elective parathyroidectomy. ECG became normal with the disappearance of J-waves after correction of hypercalcaemia...
February 2008: Singapore Medical Journal
https://read.qxmd.com/read/17547622/occurrence-of-j-waves-in-12-lead-ecg-as-a-marker-of-acute-ischemia-and-their-cellular-basis
#34
JOURNAL ARTICLE
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://read.qxmd.com/read/17394990/the-osborn-wave-in-accidental-hypothermia
#35
JOURNAL ARTICLE
Sahin Aslan, Ali Fuat Erdem, Mustafa Uzkeser, Zeynep Cakir, Murtaza Cakir, Ayhan Akoz
Hypothermia is generally defined as a core body temperature less than 35 degrees C (95 degrees F), and is one of the most common environmental emergencies encountered by emergency physicians. A 32-year-old male hunter was admitted to the hospital with altered mental status. He remained unconscious, Glasgow Coma Scale (GCS) score was recorded as 5/15, and pupils were dilated and unreactive. His vital signs showed a heart rate of 48 beats/min, respiratory rate of 10 breaths/min, blood pressure of 95/50 mm Hg, and rectal temperature of 31 degrees C...
April 2007: Journal of Emergency Medicine
https://read.qxmd.com/read/17057275/the-ecg-in-hypothermia-osborn-waves
#36
JOURNAL ARTICLE
T J Olgers, F L Ubels
No abstract text is available yet for this article.
October 2006: Netherlands Journal of Medicine
https://read.qxmd.com/read/15524131/-diagnostic-image-209-a-man-after-submersion-in-water
#37
JOURNAL ARTICLE
T van Noord, J J M Ligtenberg, J G Zijlstra
A 32-year-old man was presented with severe hypothermia and respiratory insufficiency after submersion in water. The ECG showed Osborn waves and a prolonged QRS and QT duration which normalized after correction of the hypothermia.
October 2, 2004: Nederlands Tijdschrift Voor Geneeskunde
https://read.qxmd.com/read/15338150/-reversible-electrocardiographic-changes-in-hypothermia
#38
COMPARATIVE STUDY
Markus Lins, Ben Petersen, Andreas Tiroke, Rüdiger Simon
A homeless man with accidental hypothermia showed massive ECG changes on hospital admission. Including sinus bradycardia, AV-block 1 degree, widened QRS complex with Osborne waves and QT prolongation. These changes were slowly but completely reversible after surface rewarming.
August 2004: Zeitschrift Für Kardiologie
https://read.qxmd.com/read/15333091/canine-model-of-brugada-syndrome-using-regional-epicardial-cooling-of-the-right-ventricular-outflow-tract
#39
JOURNAL ARTICLE
Kunihiro Nishida, Akira Fujiki, Koichi Mizumaki, Masao Sakabe, Masataka Sugao, Takayuki Tsuneda, Hiroshi Inoue
INTRODUCTION: Myocardial cooling can induce J point elevation (Osborn wave) as seen on ECG of the Brugada syndrome by activating transient outward current (Ito) and causing a spike-and-dome configuration of the monophasic action potential (MAP) in the ventricular epicardium in isolated canine ventricular wedge preparations. We determined the effect of regional epicardial cooling of the right ventricular outflow tract (RVOT) on surface ECG and ventricular vulnerability in the dog. METHODS AND RESULTS: In 12 dogs, a cooling device (20-mm diameter) was attached to the RVOT epicardium, and surface ECG, epicardial MAP, and endocardial MAP were recorded...
August 2004: Journal of Cardiovascular Electrophysiology
https://read.qxmd.com/read/12906963/ventricular-repolarization-components-on-the-electrocardiogram-cellular-basis-and-clinical-significance
#40
REVIEW
Gan-Xin Yan, Ramarao S Lankipalli, James F Burke, Simone Musco, Peter R Kowey
Ventricular repolarization components on the surface electrocardiogram (ECG) include J (Osborn) waves, ST-segments, and T- and U-waves, which dynamically change in morphology under various pathophysiologic conditions and play an important role in the development of ventricular arrhythmias. Our primary objective in this review is to identify the ionic and cellular basis for ventricular repolarization components on the body surface ECG under normal and pathologic conditions, including a discussion of their clinical significance...
August 6, 2003: Journal of the American College of Cardiology
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