Recently added articles from Journal of Electrocardiology:
Quality improvement in electrocardiogram recording and interpretation
Sep 01, 2008; Pahlm, Olle; Hammill, Stephen C ... How do we improve electrocardiogram (ECG) acquisition and diagnostic performance? This mini-symposium reviews important aspects of obtaining and overreading ECGs. Unfortunately, attention to obtaining the ECG and its subsequent interpretation has decreased in priority as hospitals and ...
Differences between QT and RR intervals in digital and digitized paper electrocardiograms: contribution of the printer, scanner, and digitization process*
Sep 01, 2008; Hingorani, Pooja; Karnad, Dilip R; Panicker, Gopi Krishna; Deshmukh, Sheetal; Kothari, Snehal; Narula, Dhiraj ... Abstract Background: Prints of electrocardiograms (ECGs) are often sent to core laboratories, where they are scanned, converted to a digital format, and read on-screen. These ECGs may differ from the original ECG because of variability introduced by the printer, scanner, or digitization ...
Erroneous electrocardiogram recordings because of switched electrode leads
Sep 01, 2008; Greenfield, Joseph C Jr ... Most electrocardiogram (ECG) recording errors caused by misplaced electrodes are either because of the technician placing the electrode on the wrong extremity or to mismeasuring the position for the chest leads. However, transposing the leads in the acquisition module can produce similar ...
A simple measure to control for variations in chest electrodes placement in serial electrocardiogram recordings
Sep 01, 2008; Soliman, Elsayed Z ... Abstract Variations in chest electrodes placement in the 12-lead electrocardiogram (ECG) are a major concern in interpretation of serial ECG changes, especially those changes involving V1 and V2 leads. Documentation of chest electrodes placement will help in controlling for these ...
An unusual case of electrode misplacement: left arm and V^sub 2^ electrode reversal
Sep 01, 2008; García-Niebla, Javier; García, Pablo Llontop ... Abstract Accidental interchange between precordial and limb leads, although unusual, can be possible given that some of them share the same color. We present the case where interchange of V^sub 2^ and left arm cables produced significant electrocardiographic abnormalities, which created ...
The influence of cardiograph design and automated algorithms on the incidence and detection of electrode cable reversals in an academic electrocardiogram laboratory
Sep 01, 2008; Nilsson, Kent R; Sewell, Phyllis M; Blunden-Kasdorf, Patricia; Starkey, Kimberly; Grant, Augustus O; Wagner, Galen S ... Abstract Background: Medical errors have been increasingly identified as a major source of morbidity and mortality in both outpatient and acute care settings. Central to the evaluation of many medical problems, the 12-lead electrocardiogram (ECG) is susceptible to both technical and ...
A flatline lead I results from bilateral arm-to-leg electrode exchange
Sep 01, 2008; Hoffman, Irwin ... Abstract A flatline lead I plus P and T inversions in leads II, III, and aVF in a 31-year-old male patient suggested interchange of the arm and leg electrodes bilaterally. Prompt repetition of the ECG with corrected lead placement resulted in a normal ECG and prevented incorrect ...
Recording electrocardiograms using 3-limb lead cables instead of the standard 4: a modification to minimize incorrect electrode placements*
Sep 01, 2008; Soliman, Elsayed Z ... Abstract The similarity between and the number of limb lead cables play an important role in the frequency of incorrect connection of limb electrodes. Hence, a modified electrocardiogram (ECG) acquisition procedure is proposed in this brief communication, whereby the left-leg (LL) and ...
The "low-tech" made simpler
Sep 01, 2008; Trigano, Alexandre-J ... The resting electrocardiogram has been called by Hurst1 as the "low-tech" method that the clinician should use in combination with medical history and physical examination to decide if a "high-tech" method is required to identify the correct diagnosis. In this issue of the Journal, Dr Soliman2 ...
Control of electrocardiogram acquisition errors: A brief perspective
Sep 01, 2008; Rautaharju, Pentti M ... Electrocardiogram (ECG) acquisition errors have recently received increasing attention among electrocardiographers, ECG technicians, and the manufacturers of ECG equipment. The awareness of the fact that some of these errors may result in false ECG interpretation has prompted the introduction of ...
Electromagnetic interference produced by a hearing aid device on electrocardiogram recording
Sep 01, 2008; Baranchuk, Adrian Marco; Kang, Jaskaran; Shaw, Cathy; Witjes, Rita ... Abstract An 85-year-old male was implanted with a single-chamber permanent pacemaker because of atrial fibrillation with slow ventricular response. The patient had a chronic hearing impairment and decided to buy a hearing aid device. The MyLink device (MyLink, Phonak, Stafa, Switzerland) ...
Electrocardiographic artifact induced by an electrical stimulator implanted for management of neurogenic bladder
Sep 01, 2008; Madias, John E ... Abstract Serial electrocardiograms (ECGs) obtained in a 79-year-old woman revealed consistently sharp regular high-voltage spikes, which were superimposed on her ECG curve, and which were caused by an implanted pelvic electrical stimulator used for the management of a neurogenic bladder, ...
Erratum
Sep 01, 2008; Anonymous ... Inadvertent interchange of electrocardiogram limb lead connections. Analysis of predicted consequences Derek J. Rowlands, BSc, MD, FRCP, FACC, FESC Manchester Heart Center, Manchester Royal Infirmary, Manchester, VK Reporting an erratum in, "Inadvertent interchange of ...
Validity of electrocardiographic classification of left ventricular hypertrophy across adult ethnic groups with echocardiography as a standard*
Sep 01, 2008; Vanezis, Andrew Peter; Bhopal, Raj ... Abstract Aims: To assess the validity of the electrocardiogram (ECG) as a diagnostic tool for left ventricular hypertrophy (LVH) for different ethnic groups with echocardiography as a standard. Methods: Systematic review of the literature using the Cornell and Sokolow-Lyon ...
New electrocardiographic diagnostic criteria for the pathologic R waves in leads V1 and V2 of anatomically lateral myocardial infarction
Sep 01, 2008; de Luna, Antoni Bayés; Cino, Juan; Goldwasser, Diego; Kotzeva, Anna; Elosua, Roberto; Carreras, Francesc; Pujadas, Sandra; Garcia-Moll, Xavier; Santaló, Miquel; Fiol, Miquel; Bayés-Genís, Antoni; Pons-Lladó, Guillem; Cinca, Juan ... Abstract Aims: To study the different QRS patterns in leads V1 and V2 in first inferior, lateral, and combined inferolateral myocardial infarction (MI) to recognize which are the ECG criteria that best define the presence of lesions isolated to the anatomically lateral wall of the left ...
Is it time for change?
Sep 01, 2008; Gettes, Leonard S ... Newer in vivo imaging techniques such as contrastenhanced magnetic resonance imaging (MRI) are proving very useful in defining cardiac anatomy and pathology and serving as the gold standard for more indirect biochemical, electrical, and mechanical markers such as the various blood tests, ...
Nomina anatomica contradicta revisited: Especially as it relates to cardiac imaging and electrocardiology
Sep 01, 2008; Selvester, Ronald H ... I will use the April 1992 editorial Nomina Anatomica Contradicta1 in this journal as a starting point to respond to the article "Lateral infarction originates RS pattern in V1" by de Luna et al and accompanying Letter to the Editor by the lead author. The use of the terms "Posterior" and ...
Evolution of electrocardiographic terminology for walls of the heart and "Q-wave" myocardial infarction
Sep 01, 2008; de Luna, Antoni Bayes ... Dear Editor: First of all, we are very pleased and honored that our article has generated editorial comments from real pioneers and masters of electrocardiography as Gettes and Selvester. They are giving to us an opportunity to make some further comments about the terminology given to ...
R-wave amplitude changes measured by electrocardiography during early transmural ischemia
Sep 01, 2008; Sinno, Mohamad C N; Kowalski, Marcin; Kenigsberg, David N; Krishnan, Subramaniam C; Khanal, Sanjaya ... Abstract Background: Changes in the amplitude of the R wave (RWA) on the electrocardiogram (ECG) have been described during acute myocardial ischemia and infarction. However, this has not been well studied in a controlled setting. We hypothesized that significant increase in RWA occurs ...
Understanding the dynamic electrocardiographic changes that occur during ischemia
Sep 01, 2008; Birnbaum, Yochai ... The main concepts and terminology that have been used to describe and explain the changes seen on the surface 12-lead electrocardiogram (ECG) were conceived many years ago. At those times, we lacked understanding of the pathophysiology of ischemia, and we did not have sophisticated imaging tools ...