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Organophosphorous Compounds
Published in Fina P. Kaloyanova, Mostafa A. El Batawi, Human Toxicology of Pesticides, 2019
Fina P. Kaloyanova, Mostafa A. El Batawi
Faerman traced the conditions of 179 persons employed in an OP compound production plant: mercaptophos — 50 subjects, chlorophos — 49, methylethylphos — 48 and metaphos — 32.48 OP concentrations in the air of the working rooms exceeded two to three times the MAC values. A possibility for skin resorbtion existed, as well. The ECG has shown bradycardia and sinus arythmia. According to the author, the ECG and oscillographic studies suggested the presence of an increased vagus tonus. Neurologically, a vegetative dystonia was found, demonstrated by a red dermographism, acrocyanosis, and positive orthostatic reflex, which the author related to the toxic effect of OP compounds. Gastrointestinal tract dyspeptic phenomena were also registered. The functional state of liver showed disturbed proteinsynthesis and hydrocarbon function (elevated blood sugar content, significantly higher α1 and α2-globulins together with decreased albumin quantity and a lower albuminoglobulin ratio). At fractional investigation of stomach content, secretory disturbances, such as increased or decreased acidity up to full achylia, were found. Similar changes were reported by the same author some years later.
IoT-enabled cloud-based real-time remote ECG monitoring system
Published in Journal of Medical Engineering & Technology, 2021
Manju Lata Sahu, Mithilesh Atulkar, Mitul Kumar Ahirwal, Afsar Ahamad
The number of the heartbeat per minute (bpm) is termed as HR, which is a function of time and measured in bpm. There are several methods to calculate the HR from an ECG signal. The six-second count is the most common, simplest and reasonably accurate method to obtain the HR. For cardiovascular assessment, resting HR (HR measured at rest) is used as the reference point. The typical resting HR for an adult range from 60 to 100 bpm. Resting HR below 60 bpm is treated as bradycardia, whereas above 100 bpm is referred to as tachycardia. The abnormalities in heart health are detected by the analysis of different components of ECG. However, in most of the HR monitoring system, the main focus is on resting HR, and its deviation from normal values is used to determine abnormalities. The equation to calculate bpm using RR interval is: