Clinics in chest medicine
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Clinics in chest medicine · Jun 2011
ReviewAlternatives to lung transplantation: lung volume reduction for COPD.
Emphysema is disabling and progressive and hallmarked by decreased exercise tolerance and impaired quality of life. Surgical interventions that reduce lung volume have been the focus of multiple interventions for decades; however, until recently, limited evidence has documented their effectiveness. Lung volume reduction surgery (LVRS) underwent rigorous study in the National Emphysema Treatment Trial (NETT), which demonstrated its short-term and long-term effectiveness, associated morbidity and mortality, and the essential factors that predict LVRS success or failure. This article summarizes the major results of the NETT and briefly reviews newer bronchoscopic lung volume reduction techniques that show promise as alternative treatments for select patients with COPD undergoing consideration for lung transplantation.
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Primary graft dysfunction (PGD) is the most important cause of early morbidity and mortality following lung transplantation. PGD affects up to 25% of all lung transplant procedures and currently has no proven preventive therapy. Lung transplant recipients who recover from PGD may have impaired long-term function and an increased risk of bronchiolitis obliterans syndrome. This article aims to provide a state-of-the-art review of PGD epidemiology, outcomes, and risk factors, and to summarize current efforts at biomarker development and novel strategies for prevention and treatment.
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Symptoms of sleep-disordered breathing are more common in pregnant women compared with nonpregnant women. It is likely that physiology of pregnancy predisposes to the development or worsening of sleep-disordered breathing, but some physiologic changes may also be protective against the development of this disease. Clinical presentation may be less predictive of sleep disordered breathing in pregnancy than in the non-pregnant population; nonetheless, snoring is associated with adverse pregnancy outcomes. Treatment strategies are similar to the nonpregnant population, however, pregnancy-specific scenarios may arise and these subtleties are addressed in this review.
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Clinics in chest medicine · Mar 2011
ReviewManagement principles of the critically ill obstetric patient.
The goals in management of critically ill obstetric patients involve intensive monitoring and physiologic support for patients with life-threatening but potentially reversible conditions. Management principles of the mother should also take the fetus and gestational age into consideration. The most common reasons for intensive care admissions (ICU) in the United States and United Kingdom are hypertensive disorders, sepsis, and hemorrhage. The critically ill obstetric patient poses several challenges to the clinicians involved in her care, because of the anatomic and physiologic changes that take place during pregnancy.
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Interventional pulmonology encompasses diagnostic and therapeutic bronchoscopic procedures, and pleural interventions. In the last 10 years older techniques have been refined and exciting new technologies have extended the reach and application of the instruments used. ⋯ There are no data from well-designed prospective trials to guide recommendations for interventional pulmonary procedures in pregnancy. The recommendations provided in this article are based on critical review of reported case series, opinion from recognized experts, and personal observations.