Evidence-Based Medicine

Bariatric surgery may reduce type 2 diabetes in obese patients

Bariatric surgery may reduce type 2 diabetes in obese patients By

Bariatric surgery may induce type 2 diabetes remission in obese patients, but more direct evidence is needed.

No CV, mortality benefit with omega-3 fatty acids in diabetes patients

No CV, mortality benefit with omega-3 fatty acids in diabetes patients By

Omega-3 fatty acid supplementation does not reduce mortality or cardiovascular events in patients with or at high risk for diabetes.

High-sensitivity troponin T assay reduces time to MI diagnosis

High-sensitivity troponin T assay reduces time to MI diagnosis By

Measuring cardiac troponin T levels using a high-sensitivity assay twice, one hour apart can diagnose and rule out MI in most patients with chest pain.

No increased delirium with hydromorphone after hip surgery

No increased delirium with hydromorphone after hip surgery By

Hydromorphone for postoperative pain does not appear to increase delirium in elderly patients having hip fracture surgery.

Surfactant cuts ventilation needs in preterm infants

Surfactant cuts ventilation needs in preterm infants By

Minimally invasive surfactant treatment reduces need for ventilation in spontaneously breathing preterm infants requiring increased oxygen.

Nursing protocols may reduce dependence after acute stroke

Nursing protocols may reduce dependence after acute stroke By

Nursing protocols for fever, hyperglycemia, and swallowing management in patients with acute stroke may reduce dependence.

Ulipristal acetate effective for women with symptomatic fibroids


Ulipristal acetate effective for women with symptomatic fibroids
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Ulipristal acetate controls uterine bleeding and reduces discomfort associated with fibroids.

No benefit with imaging plus exercise testing for initial CAD diagnosis in women

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No differences in major cardiac adverse events or hospitalization for chest pain among women who underwent exercising plus MPI vs. exercising alone.

No CRT benefit for HF with moderate QRS interval prolongation

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No significant differences observed in overall HF risk among patients with moderately prolonged QRS intervals who receive cardiac resynchronization therapy.

Intracranial arterial stenting plus aggressive medical management increases stroke risk

Intracranial arterial stenting plus aggressive medical management increases stroke risk

Current recommendations from the American Heart Association and the American Stroke Association classify percutaneous transluminal angioplasty with stenting (PTAS) as an investigational intervention with unknown utility for patients with transient ischemic attack or stroke.

Prophylactic azithromycin reduces COPD exacerbations in high-risk patients

A new randomized trial provides strong evidence that azithromycin reduces exacerbations and improves respiratory function in high-risk patients.

Preoperative ECHO does not improve survival in elective noncardiac surgery

Preoperative ECHO does not improve survival in elective noncardiac surgery

An echocardiogram is often performed prior to non­-cardiac surgery to identify patients at risk of cardiac complications even though the American College of Cardiology recommends against routine perioperative evaluation of left-ventricular function in such patients.

Intensive-dose vs. moderate-dose statins increase diabetes risk, but lower CVD risk

Statins are widely used for treating elevated cholesterol for both primary and secondary prevention of coronary artery disease. One concern about their use has been the possibility of increasing the risk of diabetes.

Fluid bolus increases mortality in severely febrile children in low-resource settings

Early fluid resuscitation is recommended for hemodynamic support in critically ill children, but there has been little evidence to guide the type, timing and volume of fluids to use, especially in children who are not severely hypotensive or dehydrated.

Xanthelasmata associated with increased CV risk and mortality independent of lipid levels

Xanthelasmata associated with increased CV risk and mortality independent of lipid levels

Xanthelasma palpebrarum, a yellowish deposit of cholesterol underneath the eyelid, is identified as an independent CV risk factor.

Early antiretroviral therapy may reduce transmission in HIV-discordant hetersexual couples

Observational studies have previously shown that antiretroviral therapy (ART) may reduce the transmission of HIV in serodiscordant couples. A new unblinded randomized trial suggests that early initiation of ART for the infected partner may reduce transmission more effectively than delaying ART until the CD4 count has fallen.

Pulse oximetry screening may detect congenital heart defects in newborn infants

Diagnosis of congenital heart disease in newborns is sometimes delayed until after hospital discharge, increasing the risk of illness and death. Pulse oximetry screening may help clinicians detect it early.

Androgen-deprivation plus radiation may improve prostate cancer survival

Research suggests that androgen-deprivation therapy improves survival when added to radiotherapy in men with locally advanced, stage T3 or T4 prostate cancer or with prostate cancer with high metastatic risk.

Vitamin D decreases all-cause mortality in elderly women with insufficiency

Studies have suggested that vitamin D supplementation may reduce cancer and cardiovascular disease, but evidence for the effects of supplementation on mortality has been inconsistent.

Exemestane may reduce breast-cancer risk without adverse effects

The aromatase inhibitor exemestane (Aromasin) may reduce the risk of invasive breast cancer in at-risk postmenopausal women.

Isoniazid TB prohpylaxis: 36 months more effective than six months

For HIV-infected adults with a positive tuberculin skin test, TB Prophylaxis with isoniazid for 36 months appears more effective than for six months.

Corticosteroid benefit uncertain in hospitalized pneumonia patients

A review of recent clinical trials reveals the benefits of corticosteroids in adults hospitalized with community-acquired pneumonia remain uncertain.

Selenium beneficial for patients with Graves' orbitopathy

Patients with Graves' disease who took selenium demonstrated improvements in overall quality of life and opthalmologic assessment.

Chantix linked to cardiovascular, psychiatric adverse events

The FDA recently announced a labeling change for the smoking-cessation aid varenicline (Chantix) concerning cardiovascular risks.

Adding phentermine and topiramate to lifestyle changes may aid weight loss

Phentermine was used for the medical management of weight loss in combination with fenfluramine or dexfenfluramine until side effects related to cardiac valvular disease and pulmonary hypertension were linked to the fenfluramine/dexfenfluramine component. It is currently used as monotherapy or in combination with topiramate.

GP100 vaccine with IL-2 improved melanoma outcomes

New data indicate that combining GP100 with interleukin-2 increased clinical response, delayed recurrence and may improve survival among patients with advanced melanoma

Hydroxyurea reduces pain in young sickle-cell disease patients

BABY-HUG trial results indicate that hydroxyurea significantly reduces pain events in children with sickle-cell disease, and was also associated with reduced gastroenteritis, acute chest syndrome, transfusions and hospitalizations.

Prunes more effective for constipation than psyllium?

Until recently, there has been little direct evidence to evaluate the efficacy of prunes as a dietary treatment or to compare prunes with other treatments for constipation.

Dextranomer gel injections for fecal incontinence

Local injections to narrow the anal canal reduced fecal incontinence by 25% at one-year follow-up, data from recent clinical trials indicate.

Progesteron gel reduces preterm birth risk, neonatal respiratory distress

Intramuscular or vaginal progesterone appears effective for reducing premature delivery, but data on neonatal outcomes have been limited until recently.

Mediastinal lymph node dissection does not increase stage I or II NSCLC survival

Treatment for early-stage non-small cell lung cancer is primarily surgical, but the optimal extent of mediastinal lymph node resection is unclear.

NSAIDS increase risk for recurrences, death in patients with prior MI

For patients with cardiovascular disease, current guidelines recommend NSAIDs for pain relief only in patients for whom there are no alternatives and only at the lowest doses and durations necessary.

Accelerated diagnostics help predict risk in patients with chest pain

Patients who visit the ED with acute coronary syndrome symptoms often have less serious conditions, but current diagnostic protocols are costly, lengthy and tend to require hospital admission.

Evidence-based treatments for ST-elevation MI associated with reduced mortality

Use of evidence-based procedures such as primary percutaneous coronary intervention, reperfusion and revascularization is on the rise.

Antibiotics may benefit some patients with acute otitis media

Amoxicillin-clavulanate studied in children who met strict criteria for AOM diagnose.

Combination CRT and ICD therapy may reduce HF hospitalizations, deaths

Previous trials investigating cardiac resynchronization therapy (CRT) (biventricular pacing) combined with an implantable cardioverter defibrillator (ICD) in patients with heart failure have shown nonsignificant improvements in mortality compared with ICD monotherapy. But a newer study has promising results.

Similar outcomes with expectant management and labor induction

DIGITAT trial compared expectant management and labor induction in 650 women with suspected intrauternine growth restriction.

Escitalopram reduces hot-flush symptoms of menopause

Hot flushes are one of the more bothersome symptoms of menopause. Traditionally treated with estrogens, alternative medications have been sought to avoid the risks of hormone replacement therapy.

Optimal BP for reducing cardiovascular disease risk

BP control is important for reducing risk of cardiovascular events, but the optimal BP level in many clinical scenarios is unknown.

Benefits of duloxetine in chronic low-back pain unclear

Mixed evidence supporting duloxetine for treatment of chronic low-back pain.

Glucosamine and chondroitin lack efficacy for improving osteoarthritis pain

Glucosamine and chondroitin, alone and in combination, have become popular as both prescription and OTC supplements for joint pain, but is there evidence to back it up?

Sentinal lymph node resecton or axillary lymph node dissection in women with breast cancer?

New reports from the National Surgical Adjuvant Breast and Bowel Project B-32 trial show that SLN resection is as effective for survival as ALND and may reduce postsurgical morbidity and symptoms in node-negative women.

Checklists during team training may reduce surgical mortality

A surgical safety checklist developed by the WHO to facilitate communication and safety checks was associated with reduced surgical mortality in a before-and-after study at eight hospitals.

Ivabradine may reduce HF mortality, hospital admission

Ivabradine is a novel agent that lowers heart rate by inhibiting the I(f) current in the sinoatrial node.

Target perioperative hematocrit levels may reduce blood transfusions during CABG

The decision as to when to give blood transfusions is complex, requiring a careful assessment of risks and benefits.

Cognitive behavioral therapy may improve adult ADHD symptoms

Medications are often used for treatment of adults with attention-deficit hyperactivity disorder (ADHD), but many patients remain symptomatic despite treatment with stimulants or other drugs.

Prophylactic oophorectomy may reduce ovarian cancer mortality

The prevalence of BRCA1 or BRCA 2 mutations is estimated at about 0.2%-0.33% of the population, but these mutations account for 5%-10% of breast cancers and 10%-15% of ovarian cancers among white women in the United States.

Diffusion-weighted MRI recommended for acute ischemic stoke diagnosis

The American Academy of Neurology (AAN) sponsored a systemic literature review to address the utility of diffusion- and perfusion-weighted MRI in diagnosis and prognosis for acute ischemic stroke.

CDC releases 2010 influenza prevention recommendations

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The CDC Advisory Committee on Immunization Practices has released its 2010 recommendations for the prevention and control of influenza.

Tai Chi beneficial for fibromyalgia

A randomized trial of 66 patients with fibromyalgia suggests that Tai Chi might be helpful for both pain and sleep disturbance symptoms.

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