Infectious Disease

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While acute Q fever can cause pneumonia and other febrile illnesses, it is often asymptomatic. You may want to consider testing for Q fever if a patient is infected with another tick-borne pathogen, according to a report by Rolain and associates. They described 6 patients infected with organisms such as Rickettsia conorii who also were infected with Coxiella burnetii, the cause of Q fever.

Combination therapy with pegylated interferon alfa-2a or alfa-2b and ribavirin (RBV) results in a greater rate of sustained virologic response (SVR) than that seen with standard interferon alone. Patients infected with hepatitis C virus genotype 1 require higher doses of RBV and a longer duration of therapy than do patients infected with genotype 2 or 3. Closely monitor patients for neuropsychiatric effects, especially depression, and hematologic and other toxicities. Because of the teratogenicity of RBV, strict birth control must be used throughout the course of treatment and for 6 months afterwards. Patients who have not demonstrated a 100-fold reduction in viral load after 12 weeks of therapy are unlikely to achieve SVR; discontinuation of therapy may be considered.

A 69-year-old woman presents with inflammation near the antecubital fossa of her right elbow that first appeared 4 days earlier. She has a cat but does not recall being scratched or bitten, and she does not recall injuring the area.

The parents of a 16-year-old girl report that during the past several months, she has exhibited behavioral changes, irritability, increased anger, depression, and anxiety. The girl had previously been healthy, and there has been no recent illness or trauma.

ABSTRACT: Early treatment with disease-modifying anti-rheumatic drugs (DMARDs)--alone or in combination-- can prevent joint damage and minimize disability. Until recently, the DMARDs used predominantly in patients with rheumatoid arthritis had been methotrexate, sulfasalazine, and hydoxychloroquine. Older DMARDs such as gold, d-penicillamine, and azathioprine have fallen out of favor because of their long- term toxicities or modest benefit. Six newer DMARDs--leflunomide, etanercept, infliximab, adalimumab, rituximab, and anakinra--have greatly expanded the current treatment options.

Abstract: All children with asthma should have periodic office visits, usually every 3 to 6 months, in which asthma action plans are updated. Periodic assessment of lung function by peak expiratory flow or office spirometry can help determine the appropriate treatment strategy. Low daily doses of inhaled corticosteroids remain the first and most effective choice of therapy for persistent asthma. If this approach is inadequate, adding a second medication, such as a leukotriene modifier or a long-acting ß2-agonist, is suggested. Short-acting ß2-agonists remain the most important therapy for intermittent asthma. For most children, the best route is via a metered-dose inhaler with either a spacer or valved holding chamber. If these agents are inadequate, a short course of oral corticosteroids may be required. (J Respir Dis. 2005;26(8):348-358)

A 54-year-old woman with a history of hypertension presented with a worsening headache and a left hemisensory defect. A CT scan of her head without contrast showed a right parietal hemorrhage with spreading edema; the masslike effect caused shifting of the midline to the contralateral side. The patient gradually became comatose and required intubation for airway protection. Intravenous corticosteroids were administered to decrease the effect of the lobar hemorrhage. Fever developed 3 days after admission.

A 79-year-old man has an elevated prostate-specific antigen (PSA) level(11.3 ng/mL). About 1 month earlier, when he was hospitalized for a seriousurinary tract infection (UTI), his PSA level was 13.3 ng/mL. The more recentlevel was obtained after he received antibiotic therapy for the UTI.

Abstract: The laryngeal mask airway (LMA) and intubating LMA are valuable alternatives in patients in whom intubation has failed and who need oxygenation and ventilation immediately. The dual-lumen, dual-cuffed airway tube is effective in a variety of settings and can tolerate ventilation at pressures as high as 50 cm H2O; it is contraindicated in awake patients who have intact airway reflexes, caustic ingestions, and upper airway obstruction from a foreign body or pathology. Surgical airways are lifesaving techniques when intubation is unsuccessful or impossible through the mouth or nose. It may be particularly appropriate in patients with laryngeal or facial trauma, upper airway obstruction, or oropharyngeal injury. When patients aged 12 years and older cannot be ventilated by mask or intubated with traditional methods, surgical or needle cricothyrotomy is the procedure of choice. (J Respir Dis. 2005;26(7):298-302)

The authors describe a rare cause of diffuse thoracic lymphadenopathy--Cogan syndrome. This case was remarkable for the temporal development of extensive lymphadenopathy independent of other hallmark symptoms and signs of this syndrome. In the appropriate clinical setting, Cogan syndrome should be considered in the differential diagnosis of thoracic lymphadenopathy.

Abstract: Although smoking cessation is still the most impor- tant intervention in chronic obstructive pulmonary disease (COPD), a variety of pharmacologic therapies are available to help manage symptoms. Short-acting ß2-agonists and/or ipratropium should be taken as needed, and the use of additional therapies is based on the severity of disease. Patients with moderate or severe COPD should regularly take 1 or more long-acting bronchodilators. The long-acting ß2-agonists salmeterol and formoterol have been demonstrated to improve health-related quality of life. Newer therapies include the long-acting anticholinergic tiotropium and a salmeterol-fluticasone combination. These agents improve forced expiratory volume in 1 second and may reduce the rate of acute exacerbations. For patients with moderate to very severe COPD, participation in a pulmonary rehabilitation program can improve health status, quality of life, and exercise tolerance. (J Respir Dis. 2005;26(7):284-289)

Stories about community-associated infections with methicillin-resistant Staphylococcus aureus (MRSA) have been making headlines in recent months in both the medical and popular press. A familiar problem in hospitals and nursing homes for decades, growing numbers of MRSA infections have been documented over the past few years in prison inmates, soldiers, athletes, Pacific Islanders, Alaska Natives, Native Americans, and men who have sex with men.

ABSTRACT: The management of chronic daily headache is difficult and complex. Those affected have a sensitive nervous system, and their predisposition for a low tolerance to sensory stimuli appears to be inherited. Under appropriate conditions, the equilibrium or balance between bombardment from painful stimuli and the regulatory systems that inhibit those stimuli is disrupted, allowing painful stimuli to become manifest at a greater intensity than in the nonmigraineur. Successful management depends on close adherence to nonpharmacologic approaches and pharmacologic regimens that desensitize the system and restore equilibrium. Comorbid conditions must be identified and treated as well.

To help lubricate the epithelial surface of the nose, mucus must move steadily toward the pharynx, where it is eventually swallowed. If it stagnates in the nasal or sinus cavities, it can dry out or become infected.

In his Photo Essay case of a 5-year-old girl with a herpes simplex virus (HSV) infection on her thumb , Dr Robert Blereau writes that treatment consisted of mupirocin ointment. Frankly, I was surprised to read that this agent was used to treat an HSV infection. Was this the only treatment?