Archive | October 2010
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CHAPTER 41 OTOLOGIC DISORDERS
CHAPTER 41 OTOLOGIC DISORDERS Practice of Geriatrics CHAPTER 41 OTOLOGIC DISORDERS Bradford S. Patt, M.D., F.A.C.S. External Auditory Canal Middle Ear Inner Ear Vertigo Auditory Dysfunction Otologic disorders can affect the aged in many ways, causing problems that involve the external auditory canal, the middle ear, and the inner ear. Sensorineural hearing loss and aural […]
CHAPTER 40 ORTHOPEDIC DISORDERS
CHAPTER 40 ORTHOPEDIC DISORDERS Practice of Geriatrics CHAPTER 40 ORTHOPEDIC DISORDERS Thomas P. Sculco, M.D. Trauma and Fracture Management Osteoporosis Management of Arthritis in Geriatric Patients Summary The impact of musculoskeletal disorders on the geriatric population is immense. It is estimated that by the year 2030, 21% of the United States population will be over […]
CHAPTER 39 MUSCULOSKELETAL DISORDERS
CHAPTER 39 MUSCULOSKELETAL DISORDERS Practice of Geriatrics CHAPTER 39 MUSCULOSKELETAL DISORDERS Evan Calkins, M.D., and Adrian O. Vladutiu, M.D., Ph.D., F.A.C.P. Classification and Pathophysiology Clinical Assessment Specific Clinical Entities Soft Tissue Rheumatism: Medical Orthopedics Summary CLASSIFICATION AND PATHOPHYSIOLOGY Aches and pains in the musculoskeletal system constitute the most frequent complaints of older persons (Fig. 39-1) […]
Chapter 7 – Principles of Lasers
Chapter 7 – Principles of Lasers NEAL H. ATEBARA EDMOND H. THALL DEFINITION • “Laser” is an acronym for light amplification by stimulated emission of radiation. KEY FEATURES • Lasers have had a greater impact on ophthalmology than on any other medical specialty, largely because the transparent nature of the ocular tissues allows laser light […]
Chapter 6 – Light Damage to the Eye
Chapter 6 – Light Damage to the Eye DAVID MILLER CLIFFORD A. SCOTT DEFINITION • Structural or functional damage to the external or internal eye from thermal or photochemical effects of the absorption of light. KEY FEATURES • With age, many of the photoprotective mechanisms of the eye degrade. • Cataract development and the risk […]
CHAPTER 3 BIOSYNTHESIS AND SECRETION OF PEPTIDE HORMONES(cont’4)
GENERATION OF DIVERSITY A major example of the generation of diversity is the calcitonin and calcitonin gene–related peptide (CGRP) system. In this system, the C cell of the thyroid expresses a calcitonin-CGRP transcript that initially contains six exons. In the C cell, tissue-specific factors determine the use of the polyadenylation site in the fourth exon, […]
Chapter 5 – Physical Optics for Clinicians
Chapter 5 – Physical Optics for Clinicians EDMOND H. THALL RUSSELL MILLER CHRISTOPHER CALVANO DEFINITION • Whereas geometrical optics considers light to be a series of rays, physical optics approaches problems in optics by treating light as a waveform. KEY FEATURES • Interference of light waves. • Polarization of light waves. • Diffraction effects of […]
