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Investigation into the effect of Fenoterol on mucociliary clearance in patients with chronic bronchitis. 1988

D J Weich, and H Viljoen, and M A Sweetlove, and P H Pretorius, and A J van Rensburg, and M G Lötter, and P C Minnaar, and A C Otto
Department of Internal Medicine, University of the Orange Free State, Bloemfontein, South Africa.

We investigated the effect of Fenoterol, a selective beta 2 adrenoceptor stimulant, on mucociliary clearance in 12 patients with chronic bronchitis. Mucociliary clearance was measured with a scintillation camera after inhalation of a 99mTc labelled aerosol. Fenoterol was administered one h after acquisition commenced and imaging was maintained for a further two h. Three regions of interest (ROI) were selected over each lung to generate time activity curves. Corrections for decay, alveolar deposition (using 24 h image), cough and movement of activity through each ROI were carried out. An exponential function was fitted to the clearance curves to determine clearance rates. The increase in percentage clearance after Fenoterol administration for the left and right whole lung ROI was 35% and 36% per h respectively (P = 0.006 and 0.020). Fenoterol enhances cilial clearance in chronic bronchitis patients.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009079 Mucociliary Clearance A non-specific host defense mechanism that removes MUCUS and other material from the LUNGS by ciliary and secretory activity of the tracheobronchial submucosal glands. It is measured in vivo as mucus transfer, ciliary beat frequency, and clearance of radioactive tracers. Mucociliary Transport,Clearance, Mucociliary,Clearances, Mucociliary,Mucociliary Clearances,Mucociliary Transports,Transport, Mucociliary,Transports, Mucociliary
D011877 Radionuclide Imaging The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph. Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D001991 Bronchitis Inflammation of the large airways in the lung including any part of the BRONCHI, from the PRIMARY BRONCHI to the TERTIARY BRONCHI. Bronchitides
D002908 Chronic Disease Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care (Dictionary of Health Services Management, 2d ed). For epidemiological studies chronic disease often includes HEART DISEASES; STROKE; CANCER; and diabetes (DIABETES MELLITUS, TYPE 2). Chronic Condition,Chronic Illness,Chronically Ill,Chronic Conditions,Chronic Diseases,Chronic Illnesses,Condition, Chronic,Disease, Chronic,Illness, Chronic
D005260 Female Females
D005280 Fenoterol A synthetic adrenergic beta-2 agonist that is used as a bronchodilator and tocolytic. Berotec,Berotek,Fenoterol Hydrobromide,Fenoterol Hydrochloride,Partusisten,Phenoterol,Th-1165a,p-Hydroxyphenyl-orciprenaline,p-Hydroxyphenylorciprenaline,Hydrochloride, Fenoterol,Th 1165a,Th1165a,p Hydroxyphenyl orciprenaline,p Hydroxyphenylorciprenaline
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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