Deutsche medizinische Wochenschrift
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Dtsch. Med. Wochenschr. · Apr 2008
Review[Heart failure in chronic obstructive pulmonary disease (COPD)].
Chronic obstructive pulmonary disease (COPD) has significant extrapulmonary effects, among others, on cardiovascular disease. Heart failure can frequently be found in patients with COPD. Etiology of heart failure in COPD is only poorly understood but may be related to the high frequency of ischemic heart disease in this population. Furthermore, recent data suggest that diastolic left ventricular dysfunction may have a role for heart failure in COPD.
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Dtsch. Med. Wochenschr. · Apr 2008
Review[Complications after lung transplantation. Part 1: Intensive medical and pneumologic complications].
Primary graft dysfunction and/or phrenic nerve lesion are common complications in the early phase after lung transplantation. Respiratory insufficiency is the most common reason for admission to the intensive care unit for patients after lung transplantation. Pulmonary complications in the post transplant management are acute allograft rejection (50% in the first year), infections, endobronchial bleeding, necrosis and fibrinous bronchitis. Chronic graft dysfunction (bronchiolitis obliterans syndrome) and infections are major obstacles to long-term survival.
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Central sleep apnea (CSA) is characterized by a lack of drive to inspire for at least 10 sec. In the CSA-syndrome accompanying arousals and desaturations of the arterial blood cause sleep disturbances and sympathetic nerve activations which lead to excessive daytime sleepiness and increase the risk for cardiovascular morbidity. There are six manifestations of CSA: a rare primary or idiopathic form, often in hypocapnic patients with an increased hypercapnic ventilatory drive; Cheyne-Stokes respiration, characterised by periodic CSA and a crescendo/decrescendo breathing pattern, often in patients with severe cardiac or neurological diseases; high altitude-induced periodic breathing (above 4000 m), CSA due to medical or neurological conditions; CSA due to drug or substance use; and primary sleep apnea of infancy. Besides the consequent treatment of the underlying medical conditions therapeutic options include the use of drugs, e. g. acetacolamide or oxygen, as well as non-invasive ventilation, e. g. continuous positive airway pressure (CPAP) or adaptive servo-ventilation.
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Dtsch. Med. Wochenschr. · Apr 2008
Review[The effects of air pollution and climate change on pulmonary diseases].
From as early as 1930 there has been evidence for effects on health of air pollution. Ozone, particulates and nitrogen dioxide are the most important pollutants today. The acute increase in air pollution leads to a significant raise in morbidity and mortality. ⋯ Chronic exposure to pollution causes bronchitis, accelerated decline of lung function and impaired maturing of the lungs. Ozone and a residence in proximity to major roads seem to play a role in the development of asthma. A further important environmental factor is climate change, which has an impact on air pollution but also on distribution and quality of aero-allergens and the dissemination and transmission of respiratory pathogens.