The association between blood calcium levels and electrocardiographic variables was compared in 137 normal parturient and 36 peripartum recumbent Holstein cows to determine whether hypocalcemia in peripartum dairy cows can be rapidly diagnosed using electrocardiograph. Inverse of STc (ST peak interval/SS interval(0.5)) and blood ionized calcium or serum calcium concentrations were strongly corr...

The study comprised 196 healthy young adults (100 men, 96 women) between the ages of 20 and 30 years, many ofwhom were university undergraduates and pupil nurses. A full clinical history was followed by a detailed physical examination, and subjects who were not physically healthy were excluded from the study. A 12-lead electrocardiogram was recorded at least 24 hours after the last meal, with n...

This paper compares six commonly used QT correction models and three available parameter estimation methods using five indices for QTc evaluation based on real and simulated electrocardiograph (ECG) datasets. The results show that the golden section approach always finds the correction factor making QTc interval uncorrelated to heart rate for all six formulas. However, the correction formulas d...

This review discusses the information which can be obtained by cardiac pacing in patients with the Wolff-Parkinson-White syndrome. Programmed electrical stimulation when combined with the recording of intracardiac electrograms and surface electrocardiograph leads, can be extremely useful in the following areas. 1) Determining the type of the accessory atrioventricular connexions; 2) determining...

Six consecutive patients studied by angiocardiography or aortography ranging in age from 12 to 68 years were checked by a direct-writer type of electrocardiograph during the procedure. The clinical entities consisted of pulmonary stenosis, coarctation of the aorta, aneurysm of the ascending aorta, ventricular septal defect (2 cases), and atrial septal defect associated with complete transpositi...

We propose a framework for real-time monitoring of wireless biosensors. This will be a scalable platform that requires minimum human interaction during setup and monitoring. The main components include: (i) biosensor/transceiver pairs, (ii) smart hardware modules to automatically setup the body area network, (iii) data delivery mechanism to an internet sever, and (iv) automatic data collection,...

A 69 year old previously healthy man was admitted with a 40 minute history of chest pain. The electrocardiograph showed evidence of an acute anterolateral myocardial infarction (MI). He was treated with soluble aspirin (300 mg), heparin (5000 units bolus), alteplase (rtPA) (100 mg), and heparin infusion (1000 units/h). An hour and 50 minutes later he complained of a dry mouth and examination sh...

Electrocardiograph (ECG) human identification has the potential to improve biometric security. However, improvements in ECG identification and feature extraction are required. Previous work has focused on single lead ECG signals. Our work proposes a new algorithm for human identification by mapping two-lead ECG signals onto a two-dimensional matrix then employing a sparse matrix method to proce...

This paper proposes a new hardware architecture implementing a low cost, energy efficient electrocardiograph (ECG) QRS complex detector. The proposed architecture can be used as an accelerator in an ultralow power System on Chip (SoC) which is the most important part of ECG devices. The architecture implements the modified version of MaMeMi filter algorithm [1]. The architecture is validated us...

An automated method for detecting and eliminating electrocardiograph (ECG) artifacts from electroencephalography (EEG) without an additional synchronous ECG channel is proposed in this paper. Considering the properties of wavelet filters and the relationship between wavelet basis and characteristics of ECG artifacts, the concepts for selecting a suitable wavelet basis and scales used in the pro...