Items in AFP with MESH term: Anti-Bacterial Agents

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Acute and Chronic Paronychia - Article

ABSTRACT: Paronychia is one of the most common infections of the hand. Clinically, paronychia presents as an acute or a chronic condition. It is a localized, superficial infection or abscess of the paronychial tissues of the hands or, less commonly, the feet. Any disruption of the seal between the proximal nail fold and the nail plate can cause acute infections of the eponychial space by providing a portal of entry for bacteria. Treatment options for acute paronychias include warm-water soaks, oral antibiotic therapy and surgical drainage. In cases of chronic paronychia, it is important that the patient avoid possible irritants. Treatment options include the use of topical antifungal agents and steroids, and surgical intervention. Patients with chronic paronychias that are unresponsive to therapy should be checked for unusual causes, such as malignancy.


Genitourinary Infections and Their Association with Preterm Labor - Article

ABSTRACT: Genitourinary tract infections are one cause of preterm delivery. Prematurity is one of the leading causes of perinatal mortality in the United States. Uterine contractions may be induced by cytokines and prostaglandins, which are released by microorganisms. Asymptomatic bacteriuria, gonococcal cervicitis and bacterial vaginosis are strongly associated with preterm delivery. The role of Chlamydia trachomatis, Trichomonas vaginalis and Ureaplasma urealyticum is less clear. By adopting a rational approach to the diagnosis and treatment of genitourinary infections, family physicians can substantially decrease a patient's risk of preterm delivery.


Peritonsillar Abscess: Diagnosis and Treatment - Article

ABSTRACT: Peritonsillar abscess, the most common deep infection of the head and neck that occurs in adults, is typically formed by a combination of aerobic and anaerobic bacteria. The presenting symptoms include fever, throat pain, and trismus. Ultrasonography and computed tomographic scanning are useful in confirming a diagnosis. Needle aspiration remains the gold standard for diagnosis and treatment of peritonsillar abscess. After performing aspiration, appropriate antibiotic therapy (including penicillin, clindamycin, cephalosporins, or metronidazole) must be initiated. In advanced cases, incision and drainage or immediate tonsillectomy may be required.


When to Suspect and How to Monitor Babesiosis - Article

ABSTRACT: In the past decade, cases of babesiosis in humans have been reported with increasing frequency, especially in the northeastern United States. Babesia microti (in the United States) and bovine strains (in Europe) cause most infections in humans. Most cases are tick-borne, although cases of transfusion-associated and transplacental/perinatal transmission have also been reported. Factors associated with more severe disease include advanced age, previous splenectomy and immunodeficient states. Symptoms include high fever, chills, diaphoresis, weakness, anorexia and headache. Later in the course of the illness, the patient may develop jaundice. Congestive heart failure, renal failure and acute respiratory distress syndrome are the most common complications. Therapy using the combination of quinine sulfate and clindamycin was the most commonly used treatment; however, atovaquone suspension plus azithromycin was recently reported an equally effective and less toxic therapy. Exchange transfusion, together with antibabesial chemotherapy, may be necessary in critically ill patients.


Antimicrobial Resistence: A Plan of Action for Community Practice - Article

ABSTRACT: Antibiotic resistance was once confined primarily to hospitals but is becoming increasingly prevalent in family practice settings, making daily therapeutic decisions more challenging. Recent reports of pediatric deaths and illnesses in communities in the United States have raised concerns about the implications and future of antibiotic resistance. Because 20 percent to 50 percent of antibiotic prescriptions in community settings are believed to be unnecessary, primary care physicians must adjust their prescribing behaviors to ensure that the crisis does not worsen. Clinicians should not accommodate patient demands for unnecessary antibiotics and should take steps to educate patients about the prudent use of these drugs. Prescriptions for targeted-spectrum antibiotics, when appropriate, can help preserve the normal susceptible flora. Antimicrobials intended for the treatment of bacterial infections should not be used to manage viral illnesses. Local resistance trends may be used to guide prescribing decisions.


Appropriate Antimicrobial Prescribing: Approaches that Limit Antibiotic Resistance - Article

ABSTRACT: Since the introduction of antimicrobial agents, there has been an association between antibiotic use and the development of antimicrobial resistance. Antibiotic therapy eradicates not only pathogenic organisms but also the protective normal flora. This so-called "selective pressure" results in colonization with bacteria that are resistant to the original therapy. The result has been an increase over the past two decades in antibiotic resistance among common bacterial causes of outpatient infections. Several studies have demonstrated that a substantial portion of the antibiotics prescribed in the outpatient setting are given for viral illnesses or bacterial diseases where the benefit of antibacterial therapy is marginal. The reasons for prescribing antibiotics in these situations are related to medical and social factors. Physicians should be familiar with the clinical situations in which they should provide antibiotics and those in which they may safely be withheld. Physicians should understand the motivations of patients who are seeking antibiotics and provide education, empathy and alternative treatments.


COPD: Management of Acute Exacerbations and Chronic Stable Disease - Article

ABSTRACT: Acute exacerbations of chronic obstructive pulmonary disease (COPD) are treated with oxygen (in hypoxemic patients), inhaled beta2 agonists, inhaled anticholinergics, antibiotics and systemic corticosteroids. Methylxanthine therapy may be considered in patients who do not respond to other bronchodilators. Antibiotic therapy is directed at the most common pathogens, including Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis. Mild to moderate exacerbations of COPD are usually treated with older broad-spectrum antibiotics such as doxycycline, trimethoprim-sulfamethoxazole and amoxicillin-clavulanate potassium. Treatment with augmented penicillins, fluoroquinolones, third-generation cephalosporins or aminoglycosides may be considered in patients with more severe exacerbations. The management of chronic stable COPD always includes smoking cessation and oxygen therapy. Inhaled beta2 agonists, inhaled anticholinergics and systemic corticosteroids provide short-term benefits in patients with chronic stable disease. Inhaled corticosteroids decrease airway reactivity and reduce the use of health care services for management of respiratory symptoms. Preventing acute exacerbations helps to reduce long-term complications. Long-term oxygen therapy, regular monitoring of pulmonary function and referral for pulmonary rehabilitation are often indicated. Influenza and pneumococcal vaccines should be given. Patients who do not respond to standard therapies may benefit from surgery.


Diagnosis and Management of Acute Bronchitis - Article

ABSTRACT: Acute bronchitis is one of the top 10 conditions for which patients seek medical care. Physicians show considerable variability in describing the signs and symptoms necessary to its diagnosis. Because acute bronchitis most often has a viral cause, symptomatic treatment with protussives, antitussives, or bronchodilators is appropriate. However, studies indicate that many physicians treat bronchitis with antibiotics. These drugs have generally been shown to be ineffective in patients with uncomplicated acute bronchitis. Furthermore, antibiotics often have detrimental side effects, and their overuse contributes to the increasing problem of antibiotic resistance. Patient satisfaction with the treatment of acute bronchitis is related to the quality of the physician-patient interaction rather than to prescription of an antibiotic.


Management of Crohn's Disease--A Practical Approach - Article

ABSTRACT: Crohn's disease is a chronic inflammatory disorder of the gastrointestinal tract that affects up to 480,000 persons in the United States. Symptoms include abdominal pain, diarrhea, fever, malaise, and arthralgias, and cause considerable morbidity. Speculation about genetic, environmental, dietary, infectious, and immunologic etiologies has led to treatment modalities directed at each theoretic cause, but therapy guidelines are determined by the severity of disease. Use of salicylates and/or antibiotics can be effective in mild to moderate disease, while steroids are the accepted therapy for more severe active disease. Azathioprine and other immunosuppresant drugs can be used as adjunctive therapy for active Crohn's disease and may help to maintain remission. Infliximab, an antibody to human tumor necrosis factor alpha, has proved successful in the treatment of severe refractory disease and generally causes only mild side effects. Therapy for Crohn's disease must involve treating comorbid conditions to improve the quality of life of patients.


Management of Helicobacter pylori Infection - Article

ABSTRACT: Helicobacter pylori is the cause of most peptic ulcer disease and a primary risk factor for gastric cancer. Eradication of the organism results in ulcer healing and reduces the risk of ulcer recurrence and complications. Testing and treatment have no clear value in patients with documented nonulcer dyspepsia; however, a test-and-treat strategy is recommended but for patients with undifferentiated dyspepsia who have not undergone endoscopy. In the office setting, initial serology testing is practical and affordable, with endoscopy reserved for use in patients with alarm symptoms for ulcer complications or cancer, or those who do not respond to treatment. Treatment involves 10- to 14-day multidrug regimens including antibiotics and acid suppressants, combined with education about avoidance of other ulcer-causing factors and the need for close follow-up. Follow-up testing (i.e., urea breath or stool antigen test) is recommended for patients who do not respond to therapy or those with a history of ulcer complications or cancer.


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