The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.
Hemodynamic Characterization of Patients with Severe Emphysema
Abstract
In 120 patients with severe emphysema evaluated for participation in the National Emphysema Treatment Trial, pulmonary hemodynamics and ventricular function were assessed. Pulmonary function tests were (%predicted): FEV(1) = 27%; residual volume = 224.6%; diffusion capacity = 26.7%. In 90.8% of patients, end-expiratory pulmonary artery mean pressure was > 20 mm Hg; in 61.4%, end-expiratory wedge pressure was > 12 mm Hg. Cardiac index was normal. Mean pulmonary artery pressure correlated inversely with arterial PO(2), and severity of emphysema, and directly with wedge pressure. Multiple stepwise regression revealed that arterial PO(2) was not an independent predictor of mean pulmonary artery pressure. No correlation was found between indices of emphysema severity and PA pressures. Diastolic ventricular pressures were increased without evidence of systolic dysfunction. We conclude that (1) elevations of pulmonary vascular pressures are common, (2) pulmonary hypertension may be related to factors other than hypoxia, (3) pulmonary hypertension does not impair resting systemic O(2) delivery, and (4) elevated cardiac diastolic pressures do not represent systolic dysfunction.
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Cites
Reference spirometric values using techniques and equipment that meet ATS recommendations.
Terrin, M. (1981) · PubMed · doi:10.1164/arrd.1981.124.6.763c · Cited by 1,374
Inhibition of VEGF receptors causes lung cell apoptosis and emphysema
Kasahara, Y., Tuder, R. M., Taraseviciene-Stewart, L., Le Cras, T. D., Abman, S., Hirth, P. K., Waltenberger, J., & Voelkel, N. F. (2000) · Journal of Clinical Investigation · doi:10.1172/jci10259 · Cited by 1,112
Reference spirometric values using techniques and equipment that meet ATS recommendations.
Crapo, R. O., Morris, A. H., & Gardner, R. M. (1981) · PubMed · doi:10.1164/arrd.1981.123.6.659 · Cited by 614
Standardized single breath normal values for carbon monoxide diffusing capacity.
Crapo, R. O., & Morris, A. H. (1981) · PubMed · doi:10.1164/arrd.1981.123.2.185 · Cited by 490
CD8 + ve Cells in the Lungs of Smokers with Chronic Obstructive Pulmonary Disease
SAETTA, M., BARALDO, S., CORBINO, L., TURATO, G., BRACCIONI, F., REA, F., CAVALLESCO, G., TROPEANO, G., MAPP, C. E., MAESTRELLI, P., et al. (1999) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.160.2.9812020 · Cited by 489
KESSLER, R., FALLER, M., WEITZENBLUM, E., CHAOUAT, A., AYKUT, A., DUCOLONÉ, A., EHRHART, M., & OSWALD-MAMMOSSER, M. (2001) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.164.2.2006129 · Cited by 361
PEINADO, V. I., BARBERÁ, J. A., ABATE, P., RAMÍREZ, J., ROCA, J., SANTOS, S., & RODRIGUEZ-ROISIN, R. (1999) · American Journal of Respiratory and Critical Care Medicine · doi:10.1164/ajrccm.159.5.9807059 · Cited by 307
Predictors of mortality in chronic obstructive pulmonary disease. A 15-year follow-up study.
Traver, G. A., Cline, M. G., & Burrows, B. A. (1979) · PubMed · doi:10.1164/arrd.1979.119.6.895 · Cited by 266
Rationale and Design of the National Emphysema Treatment Trial
Group The National Emphysema Treatment Trial Research (1999) · CHEST Journal · doi:10.1378/chest.116.6.1750 · Cited by 213
Effect of lung inflation on static pressure-volume characteristics of pulmonary vessels
Permutt, S., Howell, J. B. L., Proctor, D. F., & Riley, R. L. (1961) · Journal of Applied Physiology · doi:10.1152/jappl.1961.16.1.64 · Cited by 145
Cited by
Decreasing Cardiac Chamber Sizes and Associated Heart Dysfunction in COPD
Watz, H., Waschki, B., Meyer, T., Kretschmar, G., Kirsten, A., Claussen, M., & Magnussen, H. (2010) · Chest · doi:10.1378/chest.09-2810 · Cited by 277
Frequency and Impact of Pulmonary Hypertension in Patients With Obstructive Sleep Apnea Syndrome
Minai, O. A., Ricaurte, B., Kaw, R., Hammel, J., Mansour, M., McCarthy, K., Golish, J. A., & Stoller, J. K. (2009) · The American Journal of Cardiology · doi:10.1016/j.amjcard.2009.06.048 · Cited by 156
Ventilatory constraints and dyspnea during exercise in chronic obstructive pulmonary disease
Laveneziana, P., Parker, C. M., & O’Donnell, D. E. (2007) · Applied Physiology, Nutrition, and Metabolism · doi:10.1139/h07-119 · Cited by 39
Shepherd, A. I., Wilkerson, D. P., Dobson, L., Kelly, J., Winyard, P. G., Jones, A. M., Benjamin, N., Shore, A. C., & Gilchrist, M. (2015) · Nitric Oxide · doi:10.1016/j.niox.2015.01.002 · Cited by 88
Metadata
- Authors
- Scharf, S. M., Iqbal, M., Keller, C., Criner, G., Lee, S., & Fessler, H. E.
- Venue
- American Journal of Respiratory and Critical Care Medicine
- Publisher
- Oxford University Press (OUP)
- Published
- 2002-08-01
- Volume
- 166
- Issue
- 3
- Pages
- 314-322
- ISSN
- 1073-449X (ISSN-L)
- 1535-4970
- OpenAlex
- W2010245527
- Cited by
- 441
- References
- 19
- FWCI
- 9.65
- Type
- journal article
- Language
- en
- Open access
- closed
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- Scharf, S. M., Iqbal, M., Keller, C., Criner, G., Lee, S., & Fessler, H. E. (2002). Hemodynamic Characterization of Patients with Severe Emphysema. American Journal of Respiratory and Critical Care Medicine. https://doi.org/10.1164/rccm.2107027
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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