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DALY WJ, GIAMMONA ST, ROSS JC, FEIGENBAUM H. EFFECTS OF PULMONARY VASCULAR CONGESTION ON POSTURAL CHANGES IN THE PERFUSION AND FILLING OF THE PULMONARY VASCULAR BED. J Clin Invest 1996; 43:68-76. [PMID: 14105233 PMCID: PMC289497 DOI: 10.1172/jci104895] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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KORR IM, WRIGHT HM, CHACE JA. CUTANEOUS PATTERNS OF SYMPATHETIC ACTIVITY IN CLINICAL ABNORMALITIES OF THE MUSCULOSKELETAL SYSTEM. J Neural Transm (Vienna) 1996; 25:589-606. [PMID: 14166953 DOI: 10.1007/bf01228446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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DALY WJ, GIAMMONA ST, ROSS JC. THE PRESSURE-VOLUME RELATIONSHIP OF THE NORMAL PULMONARY CAPILLARY BED. J Clin Invest 1996; 44:1261-9. [PMID: 14328402 PMCID: PMC292600 DOI: 10.1172/jci105232] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Abstract
Positional stability in quietly standing dogs has been evaluated in terms of force records from individual feet and the position of the center of gravity. All four dogs carried approximately 60% of their total weight on their anterior feet and roughly 50% of their weight on each side. Within-trial variations from the mean of the fraction of total weight borne on any one foot ranged from 0.3 to 4.5% with a mean of 1.4%; between-trial variability ranged from 1.1 to 2.7%. Continuous movement of the center of gravity occurred within an area measuring approximately 1.5 cm on a side. Shifts in weight distribution within and between trials occurred in a variety of patterns which could be described in terms of the behavior of pairs of transverse, longitudinal, and diagonal couples. Preliminary observations of the reactions to a sudden disturbance confirm the hypothesis that quiet stance is accomplished through central nervous regulation. It is concluded that the trained dog behaves with a sufficient level of predictability to permit its use as a subject in a further examination of the postural control system.
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THOMAS M, SHILLINGFORD J. THE CIRCULATORY RESPONSE TO A STANDARD POSTURAL CHANGE IN ISCHAEMIC HEART DISEASE. BRITISH HEART JOURNAL 1996; 27:17-27. [PMID: 14242159 PMCID: PMC490130 DOI: 10.1136/hrt.27.1.17] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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BROOKS JR, HICKLER RB. ABNORMAL AUTONOMIC RESPONSE TO TILTING IN POSTGASTRECTOMY PATIENTS WITH DUMPING SYNDROME: EFFECT OF NEOSYNEPHRINE. Ann Surg 1996; 162:241-5. [PMID: 14327005 PMCID: PMC1476820 DOI: 10.1097/00000658-196508000-00011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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BRYAN AC, BENTIVOGLIO LG, BEEREL F, MACLEISH H, ZIDULKA A, BATES DV. FACTORS AFFECTING REGIONAL DISTRIBUTION OF VENTILATION AND PERFUSION IN THE LUNG. J Appl Physiol (1985) 1996; 19:395-402. [PMID: 14173534 DOI: 10.1152/jappl.1964.19.3.395] [Citation(s) in RCA: 182] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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GELLHORN E. MOTION AND EMOTION: THE ROLE OF PROPRIOCEPTION IN THE PHYSIOLOGY AND PATHOLOGY OF THE EMOTIONS. Psychol Rev 1996; 71:457-72. [PMID: 14216894 DOI: 10.1037/h0039834] [Citation(s) in RCA: 119] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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ABEL FL, PIERCE JH, GUNTHEROTH WG. BARORECEPTOR INFLUENCE ON POSTURAL CHANGES IN BLOOD PRESSURE AND CAROTID BLOOD FLOW. ACTA ACUST UNITED AC 1996; 205:360-4. [PMID: 14058117 DOI: 10.1152/ajplegacy.1963.205.2.360] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The effects of 30° head-down and head-up tilting on mean systemic blood pressure, carotid blood flow, and heart rate were studied in 16 dogs under morphine and Nembutal anesthesia. The tilting procedure was further repeated after denervation of the carotid sinus and aortic arch baroreceptors and after administration of a dihydrogenated ergot alkaloid mixture (Hydergine). The results indicate that the drop in pressure in the head-down position is primarily due to baroreceptor activity and that the baroreceptors are necessary for compensatory vasoconstriction on head-up tilting. Carotid blood flow decreased in both tilted positions in the control animals; the possible relationship to cerebral blood flow is discussed.
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PEITERSEN E. VESTIBULOSPINAL REFLEXES. VII. ALTERATIONS IN THE STEPPING TEST IN VARIOUS DISORDERS OF THE INNER EAR AND VESTIBULAR NERVE. ACTA ACUST UNITED AC 1996; 79:481-6. [PMID: 14120671 DOI: 10.1001/archotol.1964.00750030492008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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SPIERS AS. THE MANAGEMENT OF ASTHMATIC PATIENTS IN A CASUALTY DEPARTMENT. Med J Aust 1996; 1:584-8. [PMID: 14142026 DOI: 10.5694/j.1326-5377.1964.tb114037.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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GIAMMONA ST, DALY WJ. PULMONARY DIFFUSING CAPACITY IN NORMAL CHILDREN, AGES 4 TO 13; THE EFFECT OF BODY POSITION AND EXERCISE ON PULMONARY DIFFUSING CAPACITY, LUNG VOLUMES, AND VENTILATORY TESTS. ACTA ACUST UNITED AC 1996; 110:144-51. [PMID: 14325253 DOI: 10.1001/archpedi.1965.02090030154008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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STRANDELL T. MECHANICAL SYSTOLE AT REST, DURING AND AFTER EXERCISE IN SUPINE AND SITTING POSITION IN YOUNG AND OLD MEN. ACTA ACUST UNITED AC 1996; 61:279-98. [PMID: 14196584 DOI: 10.1111/j.1748-1716.1964.tb02967.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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MELLANDER S, OBERG B, ODELRAM H. VASCULAR ADJUSTMENTS TO INCREASED TRANSMURAL PRESSURE IN CAT AND MAN WITH SPECIAL REFERENCE TO SHIFTS IN CAPILLARY FLUID TRANSFER. ACTA ACUST UNITED AC 1996; 61:34-48. [PMID: 14168045 DOI: 10.1111/j.1748-1716.1964.tb02940.x] [Citation(s) in RCA: 130] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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CHAMBERLAIN DA, HOWARD J. GUANETHIDINE AND METHYLDOPA: A HAEMODYNAMIC STUDY. BRITISH HEART JOURNAL 1996; 26:528-36. [PMID: 14196136 PMCID: PMC1018172 DOI: 10.1136/hrt.26.4.528] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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CHRISTENSSON B, KARLEFORS T, WESTLING H. HAEMODYNAMIC EFFECTS OF NITROGLYCERIN IN PATIENTS WITH CORONARY HEART DISEASE. BRITISH HEART JOURNAL 1996; 27:511-9. [PMID: 14324109 PMCID: PMC503340 DOI: 10.1136/hrt.27.4.511] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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VELASQUEZ T, FARHI LE. EFFECT OF NEGATIVE-PRESSURE BREATHING ON LUNG MECHANICS AND VENOUS ADMIXTURE. J Appl Physiol (1985) 1996; 19:665-71. [PMID: 14195577 DOI: 10.1152/jappl.1964.19.4.665] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Anesthetized dogs in the supine position show a spontaneous decrease in total respiratory compliance and an increase in venous admixture to the pulmonary circulation. Both these changes can be increased by negative-pressure breathing and reversed by positive-pressure breathing. If the changes in total respiratory compliance are due only to changes in lung compliance and these in turn result directly from the closure of alveoli, the relationship between compliance and inspiratory and expiratory pressure allows one to determine the scatter of opening and closing pressures in the alveoli. The venous admixture measures blood flow through collapsed alveoli, and its relationship to the negative pressure applied indicates the perfusion of the alveoli collapsing with each increment in negative pressure. By studying simultaneously changes in compliance and venous admixture, and using two basic assumptions, the dog's lungs can be described as a system composed of some elements receiving nearly 50% of the ventilation and 20% of the perfusion, relatively unstable mechanically, and having a very high Va/ Q ratio, while the remaining air spaces receive the same ventilation, but 80% of the perfusion. lung compliance; atelectasis; ventilation-perfusion ratio Submitted on October 28, 1963
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DALY WJ, KRUMHOLZ RA, ROSS JC. THE VENOUS PUMP IN THE LEGS AS A DETERMINANT OF PULMONARY CAPILLARY FILLING. J Clin Invest 1996; 44:271-7. [PMID: 14260167 PMCID: PMC292475 DOI: 10.1172/jci105141] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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