Search results for "Smoking history"
showing 3 items of 3 documents
3He MRI in healthy volunteers: preliminary correlation with smoking history and lung volumes
2000
MRI with hyperpolarized helium-3 (3He) provides high-resolution imaging of ventilated airspaces. The first aim of this 3He-study was to compare observations of localized signal defects in healthy smokers and non-smokers. A second aim was to describe relationships between parameters of lung function, volume of inspired 3He and signal-to-noise ratio. With Ethics Committee approval and informed consent, 12 healthy volunteers (seven smokers and five non-smokers) were studied. Imaging was performed in a 1.5 T scanner using a two-dimensional FLASH sequence at 30V transmitter amplitude (TR/TE/α = 11 ms/4.2 ms/<10°). Known amounts of 3He were inhaled from a microprocessor-controlled delivery device…
CAT in COPD phenotypes (POPE study)
2016
Background: The COPD assessment test (CAT) is widely used for basic symptom evaluation in patients with COPD. The impact of COPD phenotypes on symptom scores using the CAT, however, remains largely unknown. Methods: The POPE-Study (NCT02119494) is an international, multicentre, observational cross-sectional survey of consecutive patients with COPD in Central and Eastern Europe (CEE). Respiratory symptoms using the modified Medical Research Council (mMRC) dyspnoea scale, and the CAT were recorded. Inclusion criteria: age ≥ 40 years, smoking history ≥ 10 pack-years, post-bronchodilator (BD) FEV1/FVC Results: 3366 COPD subjects (66 ± 8.8 yrs, post-BD FEV1 52.8 ± 18.5 % predicted, CAT 17.4 ± 7.…
Light smoking and dependence symptoms in high-school students.
2005
Summary In high-school students, prevalence of smoking is high but few studies analyzed smoking in the student population according to nicotine content of smoked cigarettes and gender. We analyzed the responses to a questionnaire, including the modified Fagerstrom Tolerance Questionnaire (FTQ), administered to 555 students (382 males, 173 females) of a professional high school in Palermo, Italy, to assess the prevalence in both genders of: (1) smoking “light” and high nicotine (HN) cigarettes; (2) signs of nicotine dependence and (3) respiratory symptoms. Nicotine content of habitually smoked cigarettes was considered as “light” if ⩽0.8 mg; as high if >0.8 mg. Forty-four percent of students…