Kardiologie

Sokolow, Maurice; Mcllroy, Malcolm B.

doi:10.1007/978-3-642-69607-7

Cited by 12 publications

(11 citation statements)

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“…In group -II highest percentage (38%) was in age group was in between 41-50 years and near equal percentage was below 40 years. This is consistent with study of Sokolow and Mcllroy 6 . In this study incidence of AMI was in mid sixties.…”

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confidence: 94%

Epidemiology and pattern of fascicular block following ST-Elevated acute myocardial infarction

Ali

Alo

Molla

2015

Bangladesh J Med Sci

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Abstract:Aim: The aim of the study was to observe the epidemiology and pattern of fascicular block following ST elevated acute myocardial infarction (AMI). Background: Fascicular block following S-T elevated acute myocardial infarction is often seen in CCU. It predicts poorer inhospital outcome and signifies underlying extensive myocardial damage with jeopardized conducting system. Materials and Method: This one year prospective observational study was carried out among the S-T elevated AMI patients in the CCU of NICVD during the period of January 2004 to December 2004. Hundred consecutive patients of first attack of AMI with or without fascicular block were included in this study. The patients suffering from congenital heart disease, cardiomyopathy, valvular heart disease and the patients having permanent pacemaker or preexisting syndrome were excluded from the study. Case selection was done with the help of history, physical examination, twelve leads surface ECG and echocardiography. Results: The mean age of the studied patients was 54.2±10.0 years. Highest percentage (38%) was in the age group 51-60 years. The mean age of male Patients was 51.0 ±9.9 years. Analysis reveals that the mean age of the female patients was significantly higher than the male patients. Among the studied patients, highest percentage had history of smoking 67% followed by hypertension (39%), diabetes mellitus (39%) etc. Among the studied patients 66% had anterior MI and 34% had inferior MI. Highest percentage of patients presented with isolated RBBB (54.0%), followed by LBBB (18%), bi-fascicular (16.0%), tri-fascicular block (8.0%) and isolated LAHB (4.0%). Among the patients with anterior MI, highest percentage presented with RBBB (42.4%) followed by bi-fascicular block (24.2%), LBBB (15.2%) and LAHB (6%) whereas with inferior MI, 76.5 percentage had RBBB followed by LBBB (23.5%). Conclusion: In this study majority of the patients were male. Most of the patients were in the age group 50-60 years. Number of anterior MI was higher (66%) than inferior MI (34%). Anterior MI showed highest incidence of fascicular block than inferior MI which is statistically significant. Among the fascicular blocks, RBBB was the highest (54.0%) and next common fascicular block was LBBB, least common was LAHB. Left posterior hemi-block was not found in this study. Statistical variation among the different types of fascicular blocks observed in this study was significant. Smoking was the most important risk factor. So, fascicular blocks following acute MI are more prone to develop complications than acute MI without fascicular block. Message is that patient with fascicular blocks following acute MI needs special care and treatment.

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confidence: 94%

Epidemiology and pattern of fascicular block following ST-Elevated acute myocardial infarction

Ali

Alo

Molla

2015

Bangladesh J Med Sci

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“…A compensatory pause usually follows a PVC. In couplets, two consecutive PVCs exists [44]. (vi) Left bundle branch block (LBBB): is a cardiac conduction abnormality seen on the electrocardiogram that results in disruption of the normal, coordinated and simultaneous distribution of the electrical signal to the two ventricles.…”

Section: Methodsmentioning

confidence: 99%

“…Absence of P waves and irregularity of R-R interval (due to irregular conduction of impulses to the ventricles) are reflected in the electrocardiogram. The heart rate may range from 100 to 175 beats per minute [44]. (iv) Ventricular fibrillation (VF): is a condition in which the heart's electrical activity becomes disordered and the heart fibrillates very rapidly (sometimes at 350 beats per minute or more).…”

Section: Methodsmentioning

confidence: 99%

“…The P waves are followed after a brief pause (of less than 20 s) by a QRS complex, which is then followed by a T wave. The P wave morphology and axis must be normal and the PR interval ranges between 120 ms to 200 ms. Sinus rhythm is characterized by a usual rate of anywhere between 60 and 100 bpm [44]. (ii) Congestive heart failure (CHF): Congestive heart failure is the loss of the heart's ability to pump adequate blood through the body.…”

Section: Methodsmentioning

confidence: 99%

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Automatic identification of cardiac health using modeling techniques: A comparative study

Acharya

Sankaranarayanan

Nayak

et al. 2008

Information Sciences

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“…[30] by investigating the impulse propagation through a tapered precompressed chain of chrome steel balls. Sokolow et al [32] numerically showed that a small alignment of 20 successively lesser diameter spheres of a strong, light mass material, placed horizontally in an appropriate sleeve, can absorb 80-90% of the incident mass energy. Melo et al [33] used an unloaded chain of exponentially decreasing bead size to experimentally investigate the effect of shock mitigation.…”

Section: Introductionmentioning

confidence: 99%

Shock Absorption Using Linear Particle Chains With Multiple Impacts

Gharib

Çelik

Hürmüzlü

2011

Journal of Applied Mechanics

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In this paper, we numerically solved the elastic multiple impact problem in a linear chain of balls using the impuhe momentum and Hertz contact theory based methods. The first method depends on a parameter called the impulse correlation ratio (ICR) while the latter one depends on the material properties and geometries of the colliding bodies. We compared the post impact velocities from the two methods and we found that the two methods yield similar solutions for elastic collisions. Then, we develop an energy absorption scheme using an arrangement of balls with different sizes. The impulse momentum method is used and the ICRs are e.xperimentally estimated. We u.se numerical and e.xperimental analyses to demomtrate that one can significantly improve the energy absorption by placing small balls in specific locations in a linear chain of large balls.

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Kardiologie

Cited by 12 publications

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Epidemiology and pattern of fascicular block following ST-Elevated acute myocardial infarction

Epidemiology and pattern of fascicular block following ST-Elevated acute myocardial infarction

Automatic identification of cardiac health using modeling techniques: A comparative study

Shock Absorption Using Linear Particle Chains With Multiple Impacts

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