Reproducibility of orthostatic hypotension in symptomatic elderly

Tinetti, 1986, Fall risk index for elderly patients based on number of chronic disabilities, Am J Med, 80, 429, 10.1016/0002-9343(86)90717-5 MacLennan, 1980, Postural hypotension in old age: is it a disorder of the nervous system or of blood vessels?, Age Aging, 9, 25, 10.1093/ageing/9.1.25 Bryg, 1987, Effects of aging on left ventricular diastolic filling in normal subjects, Am J Cardiol, 59, 971, 10.1016/0002-9149(87)91136-2 Lakatta, 1987, Do hypotension and aging have a similar effect on the myocardium?, Circulation, 75, 169 Collins, 1980, Functional changes in autonomic nervous responses with age, Age Aging, 9, 17, 10.1093/ageing/9.1.17 Conway, 1971, Sympathetic nervous activity during exercise in relation to age, Cardiovasc Res, 5, 577, 10.1093/cvr/5.4.577 Rowe, 1982, Age related failure of volume-pressure mediated vasopressin release, J Clin Endocrinol Med, 54, 661, 10.1210/jcem-54-3-661 Crane, 1976, Effect of aging on renin activity and aldosterone excretion, J Lab Clin Med, 87, 947 Epstein, 1976, Age as a determinant of renal sodium conservation in normal man, J Lab Clin Med, 87, 411 Macrae, 1989, Assessment of postural hypotension in elderly patients, Age Aging, 9, 17 Atkins, 1991, Syncope and orthostatic hypotension, Am J Med, 91, 179, 10.1016/0002-9343(91)90012-M Wieling, 1982, Reflex control of heart rate in normal subjects in relation to age: a database for cardiac vagal neuropathy, Diabetologia, 22, 163, 10.1007/BF00283745 O'Brien, 1986, Heart rate variability in healthy subjects: effect of age and the derivation of normal ranges for tests of autonomic function, Br Heart J, 55, 348, 10.1136/hrt.55.4.348 Smith, 1982, Reduced sinus arrhythmia in diabetic autonomic neuropathy: diagnostic value of an age related normal range, Br Heart J, 285, 1599 Lown, 1961, The carotid sinus: clinical evaluation of its stimulation, Circulation, 23, 766, 10.1161/01.CIR.23.5.766 Walter, 1978, Carotid sinus hypersensitivity and syncope, Am J Cardiol, 42, 396, 10.1016/0002-9149(78)90934-7 Fitzpatrick, 1991, Methodology of head-up tilt testing in patients with unexplained syncope, J Am Coll Cardiol, 17, 125, 10.1016/0735-1097(91)90714-K Kenny, 1986, Head-up tilt: a useful test for investigating unexplained syncope, Lancet, i, 1352, 10.1016/S0140-6736(86)91665-X Campbell, 1985, Postural hypotension in old age: prevalence, associations and prognosis J Clin Exp, Gerontol, 7, 163 Lipsitz, 1985, Syncope in an elderly institutionalised population: prevalence, incidence and associated risk, QJM, 55, 45 Caird, 1973, Effect of posture on blood pressure in the elderly, Br Heart J, 35, 527, 10.1136/hrt.35.5.527 Mader, 1988, Diurnal measurement of postural blood pressure responses in healthy old and young subjects, J Am Geriatr Soc, 36, 655 Shimada, 1986, Effects of age and blood pressure on the cardiovascular responses to the Valsalva manoeuvre, J Am Geriatr Soc, 34, 431, 10.1111/j.1532-5415.1986.tb03410.x Lakatta, 1987, Human aging: changes in structure and function, J Am Coll Cardiol, 10, 42A, 10.1016/S0735-1097(87)80447-3 Gribbin, 1971, Effect of age and high blood pressure on baroreflex sensitivity in man, Circ Res, 29, 424, 10.1161/01.RES.29.4.424 Shimada, 1986, Differences in age-independent effects of blood pressure on baroreflex sensitivity between normal and hypertensive subjects, Clin Sci (Colch), 70, 489, 10.1042/cs0700489 Rutan, 1992, Orthostatic hypotension in older adults, Hypertension, 19, 508, 10.1161/01.HYP.19.6.508 Lipsitz, 1985, Intra-individual variability in postural blood pressure in the elderly, Clin Sci (Colch), 69, 337, 10.1042/cs0690337 Bannister, 1992, Investigation of autonomic disorders, 260 Davidson, 1976, Diurnal pattern of water and electrolyte excretion and body weight in idiopathic orthostatic hypotension, Am J Med, 61, 709, 10.1016/0002-9343(76)90150-9 McIntosh, 1993, Clinical characteristics of vasodepressor, cardioinhibitory and mixed carotid sinus syndrome in the elderly, Am J Med, 95, 203, 10.1016/0002-9343(93)90261-M Mader, 1989, Orthostatic hypotension, Med Clin North Am, 73, 1337, 10.1016/S0025-7125(16)30602-2 McIntosh, 1993, Outcome of an integrated approach to the investigation of dizziness, falls and syncope in elderly patients referred to a “syncope” clinic, Age Aging, 22, 53, 10.1093/ageing/22.1.53