Abstract:
:Theophylline has long been a cornerstone of bronchodilator therapy for asthma and chronic obstructive lung disease, but until recently its use carried the risk of serious, even fatal, toxicity. With recent advances in understanding of this drug's pharmacologic properties and pharmacokinetic characteristics, serious toxicity now can usually be avoided. The dosage requirements for theophylline demonstrate wide interpatient and intrapatient variation. Several factors responsible for this variation, most notably age, have been identified and used in definition of dosage guidelines for different patient groups. However, substantial variation still exists within these groups, necessitating measurement of serum concentration in selected patients. The measurements obtained are used to titrate the patient's dosage requirement in such a way as to maximize therapeutic response while minimizing risk of toxicity.
journal_name
Postgrad Medjournal_title
Postgraduate medicineauthors
Uden DL,Wyatt RA,Zaske DEdoi
10.1080/00325481.1984.11698651subject
Has Abstractpub_date
1984-06-01 00:00:00pages
247-56issue
8eissn
0032-5481issn
1941-9260journal_volume
75pub_type
杂志文章abstract::Various antidepressants and anxiolytic agents have proved to be effective as short-term therapy for generalized anxiety disorder (GAD) and other anxiety disorders. However, less is known about their efficacy in the long-term treatment of GAD. This gap in our knowledge poses a problem for physicians, who treat GAD over...
journal_title:Postgraduate medicine
pub_type: 杂志文章,随机对照试验
doi:10.3810/pgm.11.1999.suppl1.3
更新日期:1999-11-01 00:00:00
abstract:BACKGROUND:The mechanism of action of dipeptidyl peptidase-4 inhibitors, such as saxagliptin, makes them suitable for combination therapy in type 2 diabetes mellitus (T2DM). Genetic, cultural, and environmental differences in individuals from different regions of the world may result in differences in treatment respons...
journal_title:Postgraduate medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.3810/pgm.2011.07.2305
更新日期:2011-07-01 00:00:00
abstract::Providing medical care for patients with mental disabilities may be challenging and financially unappealing because of the need for extra time and effort. Nonetheless, primary care physicians can meet the medical needs of these patients and benefit from working with a team approach that fosters open communication and ...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.3810/pgm.1999.11.776
更新日期:1999-11-01 00:00:00
abstract::Patients with dyslipidemia receive a cardiovascular benefit from lowering low-density lipoprotein cholesterol (LDL-C). Atorvastatin is currently one of the most effective approved medications for lowering LDL-C, and has been shown to significantly reduce cardiovascular risk in many patient groups. However, even with s...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.2012.01.2513
更新日期:2012-01-01 00:00:00
abstract::In a case of rheumatic disease, the patient's history and a careful physical examination should yield most of the information needed to identify the specific disorder present. A convenient classification is based on four differentiating features: number of joints affected, acuteness or chronicity of disease, absence o...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1976.11708414
更新日期:1976-12-01 00:00:00
abstract::Minor burns are common but require early and appropriate care to avoid infection and scarring. Damage can be arrested by immersing the burn in cold water as soon as possible. The goals of care are then to remove dead tissue and protect viable tissue during healing. Very superficial burns require only application of an...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1989.11700548
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVES:To investigate the associations of major and subthreshold depression with all-cause, cardiovascular disease and stroke mortality, and the extent to which health behaviour, medical comorbidity and functional disability explained the associations. METHODS:A cohort of 1070 persons aged ≥60 with Geriatric Menta...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.2016.1221319
更新日期:2016-09-01 00:00:00
abstract::Exercise-induced asthma can appear as one of many forms of airway hyperreactivity or as a unique clinical entity. Simple spirometry confirms the suspected clinical diagnosis in most instances, although more sensitive measurements of airway obstruction may be required. In general, the asthmatic need not restrict physic...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1980.11715395
更新日期:1980-03-01 00:00:00
abstract::Alzheimer's disease has been found to be genetically transmitted. Structural changes in the disease include loss of neurons, specifically cholinergic and perhaps noradrenergic neurons. Functional connections among neurons are also lost. No cause has yet been determined, but slow viruses, autoimmune processes, and alum...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1983.11698359
更新日期:1983-04-01 00:00:00
abstract::There are three key goals in current management of the diabetic pregnancy. Normal diabetes control before conception and during the first trimester in an attempt to reduce the incidence of congenital abnormalities. This implies that all diabetic women of childbearing age should have counseling before pregnancy. Routin...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1985.11698879
更新日期:1985-02-01 00:00:00
abstract::As sex, drugs, and rock 'n' roll have given way to STDs, HIV, and AIDS, adolescent sex has become an increasingly high-risk behavior. Dr Kay strongly believes that primary care physicians can have a prominent role in educating teens and their parents about the consequences of premature sexual activity and in promoting...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:
更新日期:1995-06-01 00:00:00
abstract::Preview The success of calcium channel antagonists in controlling hypertension, angina pectoris, and arrhythmias is well known. In recent years, second-generation agents have been introduced that are also effective against migraine headaches and Raynaud's phenomenon and appear to improve atherosclerosis and congestive...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1994.11945790
更新日期:1994-01-01 00:00:00
abstract::The hydroxyl-methyl-glutaryl-coenzyme-A (HMG-CoA) reductase inhibitors of statin action are very effective and safe drugs, and they are widely used for the treatment of hyperlipidemia and the prevention of primary and secondary cardiovascular diseases (CVDs). However, recent meta-analyses of previous studies done with...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.1080/00325481.2017.1292107
更新日期:2017-05-01 00:00:00
abstract::Community-acquired pneumonia is still a significant cause of morbidity and mortality and is often misdiagnosed and inappropriately treated. Although it can be caused by a wide variety of micro-organisms, the pneumococcus, atypicals, such as Mycoplasma pneumoniae and Chlamydophila pneumoniae, Staphylococcus aureus and ...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.1080/00325481.2015.1074030
更新日期:2015-08-01 00:00:00
abstract::Pregnancy is an important risk factor for venous thrombosis, and venous thromboembolism is a leading cause of preventable death in pregnancy. Diagnosis of venous thromboembolism is complicated in that the symptoms of dyspnea and lower extremity edema are relatively common complaints of pregnant patients. Physicians sh...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.2000.09.15.1238
更新日期:2000-09-15 00:00:00
abstract::Broncholithiasis, a disease that is probably much more common than has been reported, is most often associated with pulmonary infections, for example, tuberculosis and histoplasmosis. Stones originate from calcified peribronchial lymph nodes that erode into the tracheobronchial tree, but lithoptysis occurs infrequentl...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1988.11700166
更新日期:1988-02-15 00:00:00
abstract::Many men experience sexual function disorders, the most common of which are PE and ED. However, they may hesitate to seek treatment because of the perceived embarrassment associated with discussing their symptoms with a physician. The introduction of PDE-5 inhibitors for the treatment of ED has resulted in increased a...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.2008.04.1761
更新日期:2008-04-01 00:00:00
abstract::Proximal gastric vagotomy without drainage is widely accepted in Great Britain and Europe but in the United States has been done mainly in university centers. The operation denervates the acid-secreting parietal cell mass of the stomach, preserving vagal innervation to the gastric antrum and extragastric abdominal vis...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1978.11714810
更新日期:1978-04-01 00:00:00
abstract::Many patients who require evaluation for coronary artery disease are unable to undergo exercise stress testing because of physiologic or psychological limitations. Drs Vacek and Baldwin describe three alternative methods for assessment of cardiac function in these patients, all of which have high levels of diagnostic ...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.1080/00325481.1989.11704412
更新日期:1989-09-15 00:00:00
abstract::Women predominate at all ages among patients diagnosed as having primary fibromyalgia. Of 100 patients reviewed, the average age at onset of fibromyalgia was 46. Of 65 patients in whom menopause occurred before diagnosis of fibromyalgia, the average age at menopause was 42, and most of these women had menopause relate...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1986.11699544
更新日期:1986-09-15 00:00:00
abstract::Many new, minimally invasive interventional radiology procedures are now viable alternatives to traditional invasive therapy. The radiology procedures can often be performed in the outpatient setting, and although expensive technology may be required, the overall cost to the patient may be lower in the long run. Endov...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.2001.06.958
更新日期:2001-06-01 00:00:00
abstract::To our knowledge, this is the first reported case of primary Pseudomonas maltophilia pneumonia. Presenting symptoms were fever and chills of two days' duration and a density in the right upper lobe. Sputum culture showed normal flora, and multiple blood cultures were negative. Antibiotic therapy initially with penicil...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1979.11715067
更新日期:1979-02-01 00:00:00
abstract::Urinary tract infection (UTI) is a common problem that is distressing for patients and costly for the healthcare system. UTIs commonly affect young, sexually active women; the elderly; and patients who have predisposing factors, such as catheterization. Recurrent infections are likely to occur in all these patients gr...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.12.2000.suppl11.57
更新日期:2000-12-01 00:00:00
abstract::Cardiovascular disease (CVD) is the major cause of morbidity and mortality in patients with type 2 diabetes mellitus (T2DM). Recent major publications, such as the Action to Control Cardiovascular Risk in Diabetes trial, the Advance in Diabetes and Vascular Disease: Preterax and Diamicron MR Controlled Evaluation tria...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.2011.11.2501
更新日期:2011-11-01 00:00:00
abstract::Diagnosing acute otitis media (AOM) is quite challenging for physicians and especially other healthcare providers. Although the new guidelines from the American Academy of Pediatrics/American Academy of Family Physicians provide some guidance for making the correct diagnosis of AOM, overdiagnosis will still remain a p...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.12.2005.suppl42.215
更新日期:2005-12-01 00:00:00
abstract::An exploratory subgroup analysis of a prospective, randomized, double-blind, forced-titration study comparing the efficacy and safety of once-daily olmesartan medoxomil (OM) and losartan potassium (LOS) in patients with stage 1 or stage 2 hypertension is reported. After a 3- to 4-week placebo run-in period, eligible p...
journal_title:Postgraduate medicine
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.3810/pgm.2012.05.2549
更新日期:2012-05-01 00:00:00
abstract::Nephrolithiasis is caused by several biochemical mechanisms, identification of which allows specific therapy that may prevent recurrences. In patients with their first kidney stone, careful evaluation is needed to identify those at highest risk for recurrence. Extensive evaluation of this subgroup should lead to prope...
journal_title:Postgraduate medicine
pub_type: 杂志文章,评审
doi:10.3810/pgm.1996.12.127
更新日期:1996-12-01 00:00:00
abstract::Trigger points (TPs) in muscles of the lower torso associated with the spine are an important cause of low back pain. The quadratus lumborum is the muscle most commonly involved, but TPs located there are often overlooked because of inadequate physical examination techniques. TPs in the lower rectus abdominis refer pa...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1983.11697757
更新日期:1983-02-01 00:00:00
abstract::Prolonged diarrhea in an adult is a serious problem; in an infant it is life threatening. Conventional therapy for intractable diarrhea of infancy, which involves use of clear liquids and gradual reintroduction of cow's milk or formula, works in most situations. However, for some infants this type of management exacer...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1983.11698385
更新日期:1983-08-01 00:00:00
abstract::Patients with colon cancer involving regional lymph nodes (stage C disease) have a 5-year survival rate of only 30% to 40%, and the majority die of recurrent disease. Recent trials have shown increased survival rates with postoperative use of fluorouracil plus levamisole. The authors discuss these findings and the imp...
journal_title:Postgraduate medicine
pub_type: 杂志文章
doi:10.1080/00325481.1990.11716390
更新日期:1990-10-01 00:00:00