Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: June 18, 2025
This condition of auricular fibrillation occurs occasionally in valvular disease, and perhaps most frequently in mitral stenosis; but it can occur without valvular lesions, and with any valvular lesion. If it occurs in younger patients, valvular disease is apt to be a cause; if in older patients, sclerosis or myocardial degeneration is generally present.
The term "chronic endocarditis" should be reserved for a slowly developing sclerosis of the vavles.
He had, as it happened, attended several cases similar to his own, and he remembered especially to have dissected at the hospital the heart of a poor old man affected with sclerosis. "I can see it my heart. It is the color of a dead leaf; its fibers are brittle, wasted, one would say, although it has augmented slightly in volume.
X-ray appearances in periosteal tubercle: the surface of the cortical bone in the area of disease is roughened and irregular by erosion, and in the vicinity there may be a deposit of new bone on the surface, particularly if a sinus is present and mixed infection has occurred; in syphilis the shadow of the bone is denser as a result of sclerosis, and there is usually more new bone on the surface hyperostosis; in periosteal sarcoma there is greater erosion and consequently greater irregularity in the contour of the cortical bone, and frequently there is evidence of formation of bone in the form of characteristic spicules projecting from the surface at a right angle.
If these signs and symptoms develop late in life, or at any age with other symptoms of sclerosis or senility, little can be done therapeutically except to afford temporary relief and to prevent the occurrence of acute attacks of cardiac distress or dyspnea.
It is something that I think we ought to guard ourselves against as a sort of mental sclerosis which must end fatally long before we have reached the patriarchal age which that unbelieving believer Metchnikoff says we can attain if we fight off physical sclerosis.
There was little or no sclerosis visible in the secondary arterial branches and but few patches in the larger arteries. Microscopically the cortex proved to be far from normal: every area examined showed cell-loss, perhaps more markedly in the suprastellate layers than below. Mental symptoms of a pronounced character are said to have begun at 75. Death at 80.
However this obstruction may be brought about, whether by thickening of the iris root during dilatation of the pupil, pushing forward of the iris root by the larger ciliary processes of age, or the enlarged crystalline lens pressing on the ciliary processes; or by inflammatory adhesion of the iris to the filtration area; ballooning of the iris, or its displacement by traumatic cataract; or adhesion to the cornea after perforating ulcer in the secondary glaucomas; or whether the obstruction is due to the accumulation of experimental precipitates, as shown by Schreiber and Wengler, or possibly of pigment granules into Fontana's space; or a process of sclerosis closing the spaces by contraction of new-formed connective tissue, or the covering over with proliferating implanted epithelium following injury opening the anterior chamber; glaucoma follows impairment of this drainage space, and lessened outflow through it.
When there is hyperostosis and sclerosis, the shaft appears denser and broader than normal, and the contour is uneven or wavy. When there is a central gumma, the shadow is interrupted by a rounded clear area, like that of a chondroma or myeloma, but there is sclerosis round about. Diagnosis.
Syphilitic sequestra are heavier and denser than normal bone, because sclerosis usually precedes death of the bone. The bones especially affected by gummatous disease are: the skull, the septum of the nose, the nasal bones, palate, sternum, femur, tibia, and the bones of the forearm. In the bones of the skull, gummata may form in the peri-cranium, diploë, or dura mater.
Word Of The Day
Others Looking