Chest Radiograph Findings in Childhood Pneumonia Cases From the Multisite PERCH Study

Autor: Donald M. Thea, Yasmin Jahan, Daniel E. Park, Kamrun Nahar, Andrea DeLuca, J. Anthony G. Scott, Juliet O. Awori, W. Abdullah Brooks, Karen L. Kotloff, David R. Murdoch, Nicholas Fancourt, Maria Deloria Knoll, Henry C. Baggett, Mahamadou Diallo, Daniel R. Feikin, Scott L. Zeger, David P. Moore, Bernard E. Ebruke, Somwe Wa Somwe, James Chipeta, Melissa M. Higdon, Shabir A. Madhi, Ruth A. Karron, Sathapana Naorat, Katherine L. O'Brien, Christine Prosperi, Somsak Thamthitiwat, Breanna Barger-Kamate, Syed M. A. Zaman, Orin S. Levine, Stephen R. C. Howie, Nasreen Mahomed, Amanda J. Driscoll, Micah Silaba Ominde, Laura L. Hammitt
Rok vydání: 2017
Předmět:
Zdroj: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
ISSN: 1537-6591
1058-4838
DOI: 10.1093/cid/cix089
Popis: Summary In the Pneumonia Etiology Research for Child Health study, abnormal chest radiographs (CXRs) in cases were associated with hypoxemia, crackles, tachypnea, and fever. Overall, 54% of CXRs were abnormal (site range, 35%–64%). Consolidation on CXR was associated with an increased risk of mortality.
Background. Chest radiographs (CXRs) are frequently used to assess pneumonia cases. Variations in CXR appearances between epidemiological settings and their correlation with clinical signs are not well documented. Methods. The Pneumonia Etiology Research for Child Health project enrolled 4232 cases of hospitalized World Health Organization (WHO)–defined severe and very severe pneumonia from 9 sites in 7 countries (Bangladesh, the Gambia, Kenya, Mali, South Africa, Thailand, and Zambia). At admission, each case underwent a standardized assessment of clinical signs and pneumonia risk factors by trained health personnel, and a CXR was taken that was interpreted using the standardized WHO methodology. CXRs were categorized as abnormal (consolidation and/or other infiltrate), normal, or uninterpretable. Results. CXRs were interpretable in 3587 (85%) cases, of which 1935 (54%) were abnormal (site range, 35%–64%). Cases with abnormal CXRs were more likely than those with normal CXRs to have hypoxemia (45% vs 26%), crackles (69% vs 62%), tachypnea (85% vs 80%), or fever (20% vs 16%) and less likely to have wheeze (30% vs 38%; all P < .05). CXR consolidation was associated with a higher case fatality ratio at 30-day follow-up (13.5%) compared to other infiltrate (4.7%) or normal (4.9%) CXRs. Conclusions. Clinically diagnosed pneumonia cases with abnormal CXRs were more likely to have signs typically associated with pneumonia. However, CXR-normal cases were common, and clinical signs considered indicative of pneumonia were present in substantial proportions of these cases. CXR-consolidation cases represent a group with an increased likelihood of death at 30 days post-discharge.
Databáze: OpenAIRE