. Medical diagnosis for the student and practitioner. ulature itself, large aneurysms of the thoracic aorta, orexisting heart disease greatly distending the left auricle and producing com-pression upon, and stenosis of, the esophagus. Some of the modern forms of the gastroscope have largely overcome anydanger inherent in its use by dispensing with the uniformly rigid tube such aseasily led to perforation of the esophagus in clumsy or inexperienced handswhen the attempt was made to traverse that structure at its lower portionopposite its point of passage through the hiatus esophagus of the dia-
. Medical diagnosis for the student and practitioner. ulature itself, large aneurysms of the thoracic aorta, orexisting heart disease greatly distending the left auricle and producing com-pression upon, and stenosis of, the esophagus. Some of the modern forms of the gastroscope have largely overcome anydanger inherent in its use by dispensing with the uniformly rigid tube such aseasily led to perforation of the esophagus in clumsy or inexperienced handswhen the attempt was made to traverse that structure at its lower portionopposite its point of passage through the hiatus esophagus of the dia-phragm. The use of a flexible tip which in its passage conforms to thecurves of the esophagus offers an advantage, though adding somewhat to thecomplication of the instrument. Much difficulty has also been experienced in devising an instrumentwhich would secure a clear field of vision and freedom of the area under 828 MEDICAL DIAGNOSIS examination from obscuring secretions. This is accomplished by the newerinstruments of Jackson and of Eisner. ,4 ft. <-! it
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdiagnos, bookyear1922
