Deutsche medizinische Wochenschrift
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Dtsch. Med. Wochenschr. · Apr 2008
[Electrocardiographic changes in patients presenting with an acute coronary syndrome: "apical ballooning" versus anterior myocardial infarction].
Transient left ventricular (LV) apical ballooning (AB) is characterized by chest pain, electrocardiographic (ECG) changes and LV apical akinesia mimicking anterior myocardial infarction (AMI) in the absence of coronary artery disease. This study aimed to assess if the ECG could reliably differentiate between these two syndromes with a similar clinical presentation. ⋯ ECG findings in AB patients are significantly different from those in AMI patients. At initial presentation, the extent of ST-segment elevation and the number of abnormal Q waves are greater in AMI. During follow-up, no Q wave, a longer QTc interval and a greater extent of T-wave inversion are typical findings in AB patients.
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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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Dtsch. Med. Wochenschr. · Apr 2008
Multicenter Study[Weaning from mechanical ventilation. A survey of the situation in pneumologic respiratory facilities in Germany].
The prevalence of difficult or prolonged weaning from mechanical ventilation is increasing because of a growing number of elderly patients with multiple diseases and pulmonary problems requiring mechanical ventilation. Intensive care units (ICU) are inclined to refer to specialized unit those patients who are difficult to wean. A nationwide survey of German facilities was conducted and this article reports the current state of weaning centers staffed by chest physicians. ⋯ Weaning was successful in two thirds of patients who had been on prolonged mechanical ventilation and had then been transferred to weaning facilities staffed by chest physicians. These centres effectively improved the quality of care of patients on prolonged mechanical ventilation by avoiding long-term invasive ventilation and sparing cost-intensive ICU resources. The problems that still exist may be overcome by a network of weaning facilities.
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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.