Prevalence, risk factors and clinical correlates of COPD in a rural setting in Tanzania.

Chronic obstructive pulmonary disease (COPD) causes substantial burden of disease in developed countries, but there are limited data from Africa. We aimed to estimate the prevalence of COPD in Tanzania and identify the risk factors associated with it.This was a cross-sectional descriptive survey involving adults aged ≥35 years. We collected data on symptoms and risk factors using the Burden of Obstructive Lung Diseases questionnaire. Spirometry was performed and COPD diagnosed based on post-bronchodilator forced expiratory volume in 1 s/forced vital capacity <70%. We also measured indoor and outdoor carbon monoxide (CO) levels.A total of 869 participants (49.1% females) completed the questionnaires. Of these, 57.1% completed post-bronchodilator spirometry. Of the 25.2% ever-smokers, only 5.4% were current smokers. COPD prevalence was estimated at 17.5% (21.7% in males and 12.9% in females). COPD was associated with a history of cough, phlegm production and wheezing. 51.7% of COPD patients reported cough and 85% had mild to moderate airway limitation. Females had a higher rate of exacerbation. Pulmonary tuberculosis (TB) was reported in 10% of patients. Only 1.7% of patients who were diagnosed as COPD had ever received any medication, with only one female COPD patient having received an inhaler. 99.5% of the population used biomass fuels for cooking. The majority of households had CO levels up to 20 ppm.The prevalence of COPD in Tanzania is high, with a peak at a relatively young age and a preponderance in males. A history of TB, cigarette smoking and male sex are important risk factors. Indoor air pollution coupled with use of biomass fuel for cooking and heating may be an important risk factor for developing COPD in rural Tanzania. However, these factors need to be studied further.

Palliative care and end-of-life planning in Parkinson's disease.

In Parkinson's disease (PD) typical "palliative care" type symptoms, such as pain, nausea, weight loss and breathlessness can occur throughout the condition, but become more prevalent in later disease stages. Pain may be specifically related to PD, e.g. dystonic pain with wearing off, but is more commonly due to other conditions. The cause can usually be elicited by a careful history and examination, and this guides intervention, both non-pharmaceutical, and pharmaceutical. For example, dystonic pain will respond best to appropriate changes to dopaminergic medication. In later disease stages people have increasing problems with swallowing, and also cognitive impairment. Impaired swallowing may lead to aspiration pneumonia, which is a common cause of hospital admission, and also death. Decisions about interventions towards the end of life, such as insertion of percutaneous endoscopic gastrostomy (PEG) tube for nutrition, can be very challenging, particularly if, as in most cases, the person with PD has not previously expressed their views upon this while they still maintained capacity to make decisions. Advance care planning (ACP) in PD should be encouraged in relation to interventions such as PEG tubes. It may also cover issues such as preferred place of death. Over recent years lower proportions of people have been dying at home, and this is especially true for PD, but home may well be where they would have preferred to die. However, there is little evidence to guide health professionals about how, when, and by whom, ACP should be approached.