Key result
Study establishes the baseline ultrastructure of normal human atrial appendage for disease comparison.
Why the study?
Few studies have examined the ultrastructure of human atrial appendage myocardium to establish a baseline for investigating changes in cardiac diseases.
Observational
Answers are grounded in this paper and cite their sources.
A number of studies have been made on the ultra- structure of cardiac muscle in animals (Price et al., 1955; Moore and Ruska, 1957; Fawcett and Selby, 1958; Kisch, 1959; Bergman, 1960a; Bahr and Jennings, 1961; Stenger and Spiro, 1961a), but only a few have been carried out on human ventricular myocardium (Kisch and Philpott, 1953; Smith, Burford, and Chiquoine, 1960; Nelson and Benson, 1963), and one brief report on the myocardium of the atrial appendage (Stein, Thibodeau, and Strana- han, 1962).The following study on the normal atrial appendage has been carried out to establish a baseline for an investigation into the changes oc- curring in the myocardium in rheumatic heart disease and other cardiac diseases.
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Lannigan et al. (1966) conducted an observational in Normal atrial appendage. This study establishes the baseline ultrastructure of the normal human atrial appendage for future comparison with myocardial changes in rheumatic and other cardiac diseases.
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