Search results for "T wave"
showing 4 items of 94 documents
The electrocardiographic ‘triangular QRS-ST-T waveform’ pattern : a marker of severe haemodynamic compromise in Takotsubo syndrome : a case report
2020
Abstract Background Takotsubo cardiomyopathy is characterized by transient regional systolic dysfunction of the left ventricle, mimicking myocardial infarction. Although systolic left ventricular (LV) function normalizes in most cases, the outcome is not always favourable. Recently, a rare electrocardiogram (ECG) finding, lambda wave ST elevation or ‘triangular QRS-ST-T waveform’, was suggested as a possible marker of poor outcome in Takotsubo patients Case summary After a brief episode of chest pain and shortness of breath, a 67-year-old woman developed cardiogenic shock. Her resting ECG showed widespread ST elevations, which soon evolved into a pattern of triangular QRS-ST-T waveforms in …
An uncommon clinical picture: Wellens’ syndrome in a morbidly obese young man
2010
A 39-year-old man presented to the emergency department (ED) of the ‘‘Paolo Giaccone’’ Academic Hospital, Palermo (Italy). He had anterior chest pain that did not radiate to the neck or arms. The patient came from home where the chest pain initiated. The patient was morbidly obese (BMI 54 kg/m). At the ED, the patient’s blood pressure was 120/80 mmHg, the serum troponin I concentration was 0.029 ng/ml (normal values \ 0.034, borderline 0.034–0.12), myoglobin 45 ng/ml (normal values \ 120). While experiencing chest pain, the patient underwent a standard 12 lead electrocardiogram (ECG) that was normal. An echocardiogram, also during the chest pain, excluded the presence of hypo-akinetic left …
Optical quality of hyperopic and myopic phakic intraocular lenses
2013
Aims: To assess and compare the optical quality of the myopic and hyperopic implantable collamer lens (ICL) from its wavefront aberrations for different powers and pupil diameters. Settings and Design: Prospective study. Material and Methods: The wavefront aberrations of two myopic (−3 and −6 diopters (D)) and two hyperopic V4b ICLs (+3 and +6D) were measured in vitro . To assess and compare the optical quality of different powers of ICLs, we analyzed the root mean square (RMS) of total higher order aberrations (HOAs), trefoil, coma, tetrafoil, secondary astigmatism, and spherical aberration at 3- and 4.5-mm pupil. In addition, the point spread functions (PSFs) of each ICL evaluated were ca…
Tanatologičeskaâ problematika v povesti "Zlaâ večnostʹ" Georgiâ Peskova
2018
Pod pseudonimem Gieorgij Pieskow ukrywała się Elena Dejsza, przedstawicielka „młodszego pokolenia” pisarzy pierwszej fali emigracji rosyjskiej, autorka opowieści Zła wieczność (1932). W utworze istotne miejsce zajmuje problematyka tanatologiczna. Rozpatrywana jest ona w różnych aspektach: poruszany jest tu problem samobójstwa, odbieranego jako zwycięstwo nad śmiercią; sporo miejsca poświęca się immortologii — bibliotekarz ma obsesję na punkcie nieśmiertelności; zwraca się także uwagę na starzenie się jako zjawisko towarzyszące umieraniu; dokonuje się też zabójstwa. W sferze ideowo-tematycznej poruszany jest problem zagłady cywilizacji europejskiej. Na tanatologię artystyczną Gieorgija Piesk…