thin-layer chromatography
thin-layer chromatography A technique for the analysis of liquid mixtures using
chromatography. The stationary phase is a thin layer of an absorbing solid (e.g. alumina) prepared by spreading a slurry of the solid on a plate (usually glass) and drying it in an oven. A spot of the mixture to be analysed is placed near one edge and the plate is stood upright in a solvent. The solvent rises through the layer by capillary action carrying the components up the plate at different rates (depending on the extent to which they are absorbed by the solid). After a given time, the plate is dried and the location of spots noted. It is possible to identify constituents of the mixture by the distance moved in a given time. The technique needs careful control of the thickness of the layer and of the temperature.
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Empyema thoracis: A clinical study.(Original Article)(Clinical report)
Magazine article from: Annals of Thoracic Medicine; 1/1/2007; ; 700+ words
; ...diagnosis and treatment of empyema by surgical drainage...last century, most empyemas were the result of pneumonic...procedure, postsurgical empyema now constitutes 20...order to avoid a chronic empyema and 3. proper nutrition...for the treatment of empyemas even today.[2] Tube...
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Tuberculous empyema necessitatis in a man infected with the human immunodeficiency virus. (Case Reports).
Magazine article from: Southern Medical Journal; 7/1/2002; ; 700+ words
; ...unusual complication of empyema, and most of the scattered...4-5) Tuberculous empyema is most commonly a result...for only 10% of pleural empyemas, M tuberculosis was responsible for 73% of cases of empyema necessitatis. Rarer causes...
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Parapneumonic empyema deaths during past century, Utah.(HISTORICAL REVIEW)(Clinical report)
Magazine article from: Emerging Infectious Diseases; 1/1/2009; ; 700+ words
; Bacterial pneumonia with empyema is a serious complication of influenza...that deaths caused by parapneumonic empyema are increasing in Utah once again despite...relationship between deaths caused by empyema and influenza pandemics by using 100...
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Thoracoscopic management of empyema thoracis
Magazine article from: Journal of Minimal Access Surgery; 10/1/2007; ; 700+ words
; Introduction Empyema thoracis is an infection of the pleural space that...procedures (post-resection or post-pneumonectomy empyema). Complicated parapneumonic effusion or pleural empyema develops in 10-20% of outpatients with pneumonia...
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Recent findings in empyema described by G. Barmparas and colleagues.(Report)
Newspaper article from: Biotech Week; 8/5/2009; 700+ words
; ...research from the United States, "Empyema is a rare, but morbid complication...to determine (1) the incidence of empyema after diaphragmatic injury, (2) risk factors for development of empyema after these injuries, and (3) the...
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Survey of childhood empyema in Asia: Implications for detecting the unmeasured burden of culture-negative bacterial disease.(Research article)(Survey)
Magazine article from: BMC Infectious Diseases; 7/11/2008; ; 700+ words
; ...as well as parapneumonic effusions or empyema [4, 5]. Several studies from developed countries suggest that the prevalence of empyema and pleural effusion may be increasing...10]. In these countries, pediatric empyema is often quickly identified and treated...
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Missed foreign body and nessitans empyema
Magazine article from: Anaesthesia and Intensive Care; 12/1/2007; ; 700+ words
; SUMMARY A recurrent empyema over a three-month period ultimately presented as an empyema necessitans (an empyema pointing through the skin) due to Fusobacterium varium. The recurrence of the empyema was due to an animal vertebra aspirated during...
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Bedside Modified Clagett Procedure for Empyema After Pulmonary Resection
Magazine article from: The American Surgeon; 7/1/2006; ; 700+ words
; ...and feasibility in treating empyema after pulmonary resection with...Patients were diagnosed with an empyema (positive thoracostomy tube...results disclosed Gram-positive empyemas in all patients. Three patients...management of postoperative empyema because it avoids additional...
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Empyema and restrictive pleural processes after blunt trauma: An under-recognized cause of respiratory failure
Magazine article from: The American Surgeon; 2/1/2000; ; 700+ words
; ...objective was to assess the frequency of empyema and restrictive pleural processes after...required a thoracotomy and decortication for empyema. Twenty-eight patients with blunt trauma...required a thoracotomy and decortication for empyema. The most common finding was infected...
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Pleural empyema due to group a beta-hemolytic streptococci in an adult
Magazine article from: Indian Journal of Medical Sciences; 5/1/2005; ; 700+ words
; ...A diagnosis of left-sided pleural empyema was made and two chest tubes were inserted...follow-up at the hospital. Pleural empyema due to Group A beta-hemolytic streptococci...1],[2] Group A streptococcal empyema in adults has not been widely reported...
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Empyema
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
Empyema Definition Empyema is a condition in which pus and fluid from infected tissue collects...from the Greek word empyein meaning pus-producing (suppurate). Empyema is most often used to refer to collections of pus in the space around...
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empyema
Book article from: The Columbia Encyclopedia, Sixth Edition
empyema , persistent purulent discharge into a cavity such as the pleural space or the gallbladder. Empyema results as a complication of bacterial infections such as pneumonia and lung abscess. It is now relatively rare because of the widespread...
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Central Nervous System Infections
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...this occurs, abscesses or empyemas may be established. Description...can result in abscesses and empyemas (accumulations of pus...have fixed boundaries, but empyemas lack definable shape and size...mater, and a cranial subdural empyema occurs between the dura mater...
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Chest Drainage Therapy
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed.
...conditions include cancer that causes excessive secretions, empyema (pus in the thoracic cavity), or hemothorax (blood in the...site at which the tube was inserted heals normally. KEY TERMS Empyema — Pus in the pleural cavity. Hemothorax —...
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Chest Tube Insertion
Encyclopedia entry from: Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers
...lung into the chest) hemothorax (bleeding into the chest) empyema (lung abscess or pus in the chest) pneumothorax or hemothorax...accumulation. The typical diagnostic signs and symptoms of empyema (lung infection) include fever, cough, and sputum discharge...
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