Biomaterial Database

Utility of a Sputum Antigen Detection Test in Pneumococcal Pneumonia and Lower Respiratory Infectious Disease in Adults. 2015

Kiyoyasu Fukushima, and Shigeki Nakamura, and Yuichi Inoue, and Yasuhito Higashiyama, and Mitsuhide Ohmichi, and Tadashi Ishida, and Kunihiko Yoshimura, and Toyomitsu Sawai, and Noboru Takayanagi, and Chikara Nakahama, and Tomoyuki Kakugawa, and Koichi Izumikawa, and Nobuki Aoki, and Yasuhiko Nishioka, and Osamu Kosaka, and Shigeru Kohno

Department of Respiratory Medicine, Japanese Red Cross Nagasaki Genbaku Isahaya Hospital, Japan.

OBJECTIVE To compare the utility of Gram staining, a urinary antigen detection kit and a sputum antigen detection kit were examined for the rapid and early detection of pneumococcal pneumonia and lower respiratory infectious diseases. METHODS A newly developed sputum pneumococcal antigen detection kit (RAPIRUN), Gram staining, and urinary antigen detection kit (BinaxNOW) were comparatively evaluated for their ability to detect Streptococcus pneumoniae in patients with pneumonia or lower respiratory tract infection. Sputum culture results were used as a standard for comparison. Furthermore, the pneumococcus-positive rates in culture and rapid tests were compared using polymerase chain reaction (PCR) as a reference. RESULTS Of the 169 patients studied, 54 (32.0%) tested positive for S. pneumoniae in culture. S. pneumoniae detection sensitivities for Gram staining, RAPIRUN, and BinaxNOW were 75.9%, 90.7%, and 53.7%, respectively; thus, RAPIRUN had a significantly higher sensitivity than BinaxNOW (p<0.001). For patients with ≥10(5) copies/μg of pneumococcal surface protein A DNA PCR analysis, the detection rates of culture, Gram staining, and RAPIRUN were 85.2%, 72.1%, and 82.0%, respectively, however, the detection rate of BinaxNOW was only 47.5%. Comparisons among 45 patients with culture-positive pneumococcal pneumonia revealed that RAPIRUN had a significantly higher detection rate than BinaxNOW in the mild cases (p<0.006), regardless of the number of days from onset (p<0.03). CONCLUSIONS RAPIRUN is a rapid testing kit that detects S. pneumoniae in sputum with a high sensitivity and specificity. It is a particularly more useful detection kit than BinaxNOW for early and mild community-acquired pneumonia in pre-treatment patients whose sputum specimens can be obtained.

UI	MeSH Term	Description	Entries
D007118	Immunoassay	A technique using antibodies for identifying or quantifying a substance. Usually the substance being studied serves as antigen both in antibody production and in measurement of antibody by the test substance.	Immunochromatographic Assay,Assay, Immunochromatographic,Assays, Immunochromatographic,Immunoassays,Immunochromatographic Assays
D007564	Japan	A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo.	Bonin Islands
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010619	Phenazines
D011018	Pneumonia, Pneumococcal	A febrile disease caused by STREPTOCOCCUS PNEUMONIAE.	Pneumococcal Pneumonia,Pneumococcal Pneumonias,Pneumonias, Pneumococcal
D011933	Reagent Kits, Diagnostic	Commercially prepared reagent sets, with accessory devices, containing all of the major components and literature necessary to perform one or more designated diagnostic tests or procedures. They may be for laboratory or personal use.	Diagnostic Reagent Kits,Diagnostic Reagents and Test Kits,Diagnostic Test Kits,In Vitro Diagnostic Device,In Vitro Diagnostic Devices,In Vitro Diagnostic Medical Device,In Vitro Diagnostic Medical Devices,Kits, Diagnostic Reagent,Diagnostic Reagent Kit,Diagnostic Test Kit,Kit, Diagnostic Reagent,Kit, Diagnostic Test,Kits, Diagnostic Test,Reagent Kit, Diagnostic,Test Kit, Diagnostic,Test Kits, Diagnostic
D012141	Respiratory Tract Infections	Invasion of the host RESPIRATORY SYSTEM by microorganisms, usually leading to pathological processes or diseases.	Respiratory System Infections,Upper Respiratory Tract Infection,Upper Respiratory Tract Infections,Infections, Respiratory,Infections, Respiratory Tract,Infections, Upper Respiratory,Infections, Upper Respiratory Tract,Respiratory Infections,Upper Respiratory Infections,Infection, Respiratory System,Infection, Respiratory Tract,Respiratory Infection, Upper,Respiratory System Infection,Respiratory Tract Infection
D005260	Female		Females
D005840	Gentian Violet	A dye that is a mixture of violet rosanilinis with antibacterial, antifungal, and anthelmintic properties.	Crystal Violet,Methyl Violet,Methylrosaniline Chloride,C.I. 42555,Gentiaanviolet FNA,Hexamethylpararosaniline Chloride,Kristallviolett-Lösung,Vigencial,Chloride, Hexamethylpararosaniline,Chloride, Methylrosaniline,FNA, Gentiaanviolet,Kristallviolett Lösung,Violet, Crystal,Violet, Gentian,Violet, Methyl