576
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Rao PS, Linde LM, Liebman J, Perrin E. Functional closure of physiologically advantageous ventricular septal defects. Observations in three cases with tricuspid atresia. AMERICAN JOURNAL OF DISEASES OF CHILDREN (1960) 1974; 127:36-40. [PMID: 4809792 DOI: 10.1001/archpedi.1974.02110200038005] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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577
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Rao PS, Jue KL, Isabel-Jones J, Ruttenberg HD. Ebstein's malformation of the tricuspid valve with atresia. Differentiation from isolated tricuspid atresia. Am J Cardiol 1973; 32:1004-9. [PMID: 4271257 DOI: 10.1016/s0002-9149(73)80173-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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578
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Liebman J, Lee MH, Rao PS, Mackay W. Quantitation of the normal Frank and McFee-Parungao orthogonal electrocardiogram in the adolescent. Circulation 1973; 48:735-52. [PMID: 4744781 DOI: 10.1161/01.cir.48.4.735] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A detailed linear, circular and spherical quantitation of the Frank and McFee-Parungao orthogonal electrocardiograms of 166 adolescents is presented.
There are significant differences between pubescent males and females: (1) QRS and T magnitudes in the male are greater than in the female. (2) The difference in magnitudes is greater at age 11-15 than at age 16-19, presumably because females reach puberty earlier. (3) The differences in magnitudes are on the X and Z axes but
not
the Y axis. (4) Males achieve their maximal posterior QRS orientation sooner than females and are more superior as it occurs. (5) The female's T vector is less anterior than the male's. (6) The angular deviation of T from QRS is less in females than males for the horizontal and sagittal planes.
There are significant differences between the two lead systems: (1) The McFee-Parungao's voltages are greater than those of the Frank system. (2) On the X axis, the Frank leftward vector is 62% of the McFee, but the terminal rightward vector is 85% of the McFee. (3) On the Y axis, the Frank inferior vector is 76% of the McFee, but initial superior is 90% and the terminal superior 62% of the McFee. (4) On the X axis, 25% is terminally to the right in the Frank, but only 15% in the McFee. (5) The Frank system is oriented slightly more posterior than the McFee, though the T vectors are not oriented differently.
There is no evidence that the spatial QRS and T orientations are related to each other.
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579
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Rao PS, Inbaraj SG. Some aspects of pregnancy terminations in a South Indian population. Indian J Med Res 1973; 61:1247-55. [PMID: 4761296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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580
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Rao PS, Rajamanickam C, Fernandez SR. Personal health expenses among rural communities of North Arcot District. Indian J Med Res 1973; 61:1100-11. [PMID: 4202203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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581
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Abstract
Peak systolic pulmonary valvar pressure gradients are frequently seen in large intracardiac left-to-right shunt lesions. Conventionally, this has been attributed to "relative" pulmonic stenosis. Theoretical considerations suggest that this gradient is due to differences in expression of the total fluid energy. The side pressure, the downstream pressure, the end pressure, and the flow velocity in the pulmonary artery (PA) and the right ventricle (RV) pressure were measured in 11 dogs in the control state, and after increasing the velocity of the pulmonary arterial flow either by administration of isoproterenol or atropine, or by creating an arteriovenous fistula. The RV pressure and the end PA pressure were not significantly different (
P
> 0.05), and were higher (
P
< 0.01) than the side and downstream PA pressure in the control state, but increased to higher levels (
P
< 0.01) after increasing the velocity of flow in the pulmonary artery. The mean pulmonary valve peak systolic gradient (RV-side PA pressure difference) was 8.8 mm Hg in the control state and increased to 19.1 mm Hg after isoproterenol infusion (
P
< 0.01). This change in pulmonary valvar gradient is proportional to the increase in the PA flow velocity.
The side pressure measures only the potential energy, and the end pressure measures both the potential and kinetic energies. In the right ventricle, only the potential energy is recorded where the kinetic energy is practically nonexistent. The difference between the RV (or end PA) pressure and side PA pressure is proportional to velocity of flow in the pulmonary artery and is due to partial transformation of fluid energy into kinetic energy. Thus, our study helps to explain the pressure gradient across the pulmonary valve in large left-to-right shunt lesions. These studies also raise questions as to the validity of interpretations of the gradients produced in the RV outflow tract after isoproterenol or exercise.
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582
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Rao PS, Rao KS. Fatty acid composition of phospholipids in different regions of developing human fetal brain. Lipids 1973; 8:374-7. [PMID: 4724015 DOI: 10.1007/bf02531711] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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583
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Choudary DV, Reddy RS, Rajakumari K, Rao PS, Reddy CR. A clinico-pathological study of puerperal cardicmyopathy. Indian Heart J 1973; 25:189-94. [PMID: 4773886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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584
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585
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Rao PS, Molthan ME. Systemic venous anomalies and partial heterotaxia with normal heart. AMERICAN JOURNAL OF DISEASES OF CHILDREN (1960) 1973; 125:749-52. [PMID: 4699509 DOI: 10.1001/archpedi.1973.04160050089019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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586
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Rao PS, Hayon E. One-electron redox reactions of free radicals in solution. Rate of electron transfer processes to quinones. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 292:516-33. [PMID: 4705443 DOI: 10.1016/0005-2728(73)90002-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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587
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Morgan RH, Donner MW, Gayler BW, Margulies SI, Rao PS, Wheeler PS. Decision processes and observer error in the diagnosis of pneumoconiosis by chest roentgenography. THE AMERICAN JOURNAL OF ROENTGENOLOGY, RADIUM THERAPY, AND NUCLEAR MEDICINE 1973; 117:757-64. [PMID: 4698817 DOI: 10.2214/ajr.117.4.757] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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588
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Rao PS, Hayon E. Experimental determination of the redox potential of the superoxide radical O 2 . Biochem Biophys Res Commun 1973; 51:468-73. [PMID: 4693487 DOI: 10.1016/0006-291x(73)91280-1] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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589
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590
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Rao PS, Pillai K, Gregg EC. Effect of shadow trays on surface dose and build-up for megavoltage radiation. THE AMERICAN JOURNAL OF ROENTGENOLOGY, RADIUM THERAPY, AND NUCLEAR MEDICINE 1973; 117:168-74. [PMID: 4631093 DOI: 10.2214/ajr.117.1.168] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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591
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Petrucco O, Rao PS, Cavanagh D. Endotoxin shock in the dog. Alterations in hemodynamic and hematologic parameters during bolus and infusion studies. Am J Obstet Gynecol 1972; 114:1060-5. [PMID: 4635200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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592
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Rao PS, Bhagat BD, Cavanagh D. Effect of endotoxin on hemodynamics and norepinephrine metabolism in the dog. PROCEEDINGS OF THE SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE. SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINE (NEW YORK, N.Y.) 1972; 141:412-8. [PMID: 4564616 DOI: 10.3181/00379727-141-36788] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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593
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Rao PS, Rao KS. The fatty acid composition of different classes of lipids in developing human brain. Biochem J 1972; 128:44P. [PMID: 5085611 PMCID: PMC1173678 DOI: 10.1042/bj1280044pb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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594
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595
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Adams RB, Pillai K, Rao PS, Gregg EC. Experience with an analogue treatment planner. Phys Med Biol 1972. [DOI: 10.1088/0031-9155/17/3/039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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596
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Rao PS, Karat AB, Kaliaperumal VG, Karat S. Prevalence of leprosy in Gudiyatham Taluk, South India. II. Geographical variations. INTERNATIONAL JOURNAL OF LEPROSY AND OTHER MYCOBACTERIAL DISEASES : OFFICIAL ORGAN OF THE INTERNATIONAL LEPROSY ASSOCIATION 1972; 40:164-70. [PMID: 4675053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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597
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Rao PS, Rao SR, Kumar SV, Murthy KJ, Dussey P. Intravenous administration of coconut water. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 1972; 20:235-9. [PMID: 5028248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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598
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Rao PS, Lipow HW. Growth retardation in steroid dependent asthma corrected by corticotrophin (ACTH). Case reports with comments. Clin Pediatr (Phila) 1972; 11:93-7. [PMID: 4336360 DOI: 10.1177/000992287201100215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
When longterm corticosteroid therapy is found necessary in children during their growth period, their linear growth should be monitored very carefully. If evidence of growth re tardation occurs, then a change to ACTH should be considered.
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599
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600
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Viziam CB, Mathai R, Rao PS. VDRL screening of urban and rural population. Indian J Med Res 1972; 60:106-13. [PMID: 5029113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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