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Open Forum Infect Dis. 2016 Mar 08;3(1):ofw023. doi: 10.1093/ofid/ofw023. eCollection 2016 Jan.

Relationship Between Upper Respiratory Tract Influenza Test Result and Clinical Outcomes Among Critically Ill Influenza Patients.

Open forum infectious diseases

Krishna P Reddy, Ednan K Bajwa, Robert A Parker, Andrew B Onderdonk, Rochelle P Walensky

Affiliations

  1. Medical Practice Evaluation Center; Division of Pulmonary and Critical Care Medicine; Division of Pulmonary and Critical Care Medicine; Division of Pulmonary and Critical Care Medicine, Beth Israel Deaconess Medical Center; Harvard Medical School, Boston, Massachusetts.
  2. Division of Pulmonary and Critical Care Medicine; Harvard Medical School, Boston, Massachusetts.
  3. Medical Practice Evaluation Center; Division of General Internal Medicine; Biostatistics Center; Harvard Medical School, Boston, Massachusetts.
  4. Department of Pathology; Harvard Medical School, Boston, Massachusetts.
  5. Medical Practice Evaluation Center; Division of General Internal Medicine; Division of Infectious Disease, Massachusetts General Hospital; Division of Infectious Disease, Brigham and Women's Hospital; Harvard Medical School, Boston, Massachusetts.

PMID: 26966696 PMCID: PMC4784015 DOI: 10.1093/ofid/ofw023

Abstract

Among critically ill patients with lower respiratory tract (LRT)-confirmed influenza, we retrospectively observed worse 28-day clinical outcomes in upper respiratory tract (URT)-negative versus URT-positive subjects. This finding may reflect disease progression and highlights the need for influenza testing of both URT and LRT specimens to improve diagnostic yield and possibly inform prognosis.

Keywords: critically ill; influenza diagnosis; lower respiratory tract; upper respiratory tract

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