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Displaying 251 - 260 of 1287 in Annals of Internal Medicine
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Percutaneous Closure Versus Medical Treatment in Stroke Patients With Patent Foramen Ovale: A Systematic Review and Meta-analysis: Annals of Internal Medicine: Vol 168, No 5
Background: New evidence emerged recently regarding the percutaneous closure of patent foramen ovale (PFO) to prevent recurrent stroke in patients with cryptogenic stroke. Purpose: To compare risks for recurrent cerebrovascular events in adults with PFO and cryptogenic stroke who underwent PFO closure versus those who received medical therapy alone. Data Sources: PubMed, Scopus, and Google Scholar from 1 December 2004 through 14 September 2017; references of eligible studies; relevant scientific session abstracts; and cardiology Web sites. Study Selection: Randomized controlled trials, published in English, that compared PFO closure using a currently available device with medical treatment alone and that reported, at minimum, the rates of stroke or transient ischemic attack (TIA) or of new-onset atrial fibrillation (AF) or atrial flutter (AFL). Data Extraction: 2 investigators independently extracted study data and assessed study quality. Data Synthesis: 4 of 5 trials comparing PFO closure with medical therapy used commercially available devices. These 4 trials, involving 2531 patients, found that PFO closure reduced the risk for the main outcome of stroke or TIA (risk difference [RD], −0.029 [95% CI, −0.050 to −0.007]) and increased the risk for new-onset AF or AFL (RD, 0.033 [CI, 0.012 to 0.054]). The beneficial effect of PFO closure was associated with larger interatrial shunts (P = 0.034). Limitation: Trials were not double-blind, and inclusion criteria were heterogeneous. Conclusion: Compared with medical treatment, PFO closure prevents recurrent stroke and TIA but increases the incidence of AF or AFL in PFO carriers with cryptogenic stroke. Primary Funding Source: Italian Ministry of Education, University and Research (MIUR). (PROSPERO: CRD42017074686)
Tumor Necrosis Factor Inhibitors and Cancer Recurrence in Swedish Patients With Rheumatoid Arthritis: A Nationwide Population-Based Cohort Study: Annals of Internal Medicine: Vol 169, No 5
Background: Use of tumor necrosis factor inhibitors (TNFi) in patients with a history of cancer remains a clinical dilemma. Objective: To investigate whether TNFi treatment in rheumatoid arthritis (RA) is associated with increased risk for cancer recurrence. Design: Population-based cohort study based on linkage of nationwide registers. Setting: Sweden. Participants: Patients with RA who started TNFi treatment between 2001 and 2015, after being diagnosed with cancer, and matched patients with RA and a history of the same cancer who had never received biologics. Measurements: The primary outcome was the first recurrence of cancer. Adjusted Cox proportional hazards models were used to estimate hazard ratios (HRs), taking into account time, cancer type, and whether the cancer was invasive or in situ (or tumor, node, metastasis [TNM] classification system stage in a subset of patients). Results: Among 467 patients who started TNFi treatment (mean time after cancer diagnosis, 7.9 years), 42 had cancer recurrences (9.0%; mean follow-up, 5.3 years); among 2164 matched patients with the same cancer history, 155 had recurrences (7.2%; mean follow-up, 4.3 years) (HR, 1.06 [95% CI, 0.73 to 1.54). Hazard ratios were close to 1 in analyses of patient subsets matched on cancer stage or with similar time from index cancer diagnosis to the start of TNFi treatment, as well as in unmatched analyses. Several CIs had upper limits close to 2. Limitation: The outcome algorithm was partly nonvalidated, and channeling bias was possible if patients with a better index cancer prognosis were more likely to receive TNFi. Conclusion: The findings suggest that TNFi treatment is not associated with increased risk for cancer recurrence in patients with RA, although meaningful risk increases could not be ruled out completely. Primary Funding Source: ALF (an agreement in Stockholm County Council concerning medical education and research in health and medical care), the Swedish Cancer Society, the Swedish Foundation for Strategic Research, and the Swedish Research Council.
Device Closure Versus Medical Therapy Alone for Patent Foramen Ovale in Patients With Cryptogenic Stroke: A Systematic Review and Meta-analysis: Annals of Internal Medicine: Vol 168, No 5
This article has been corrected. The original version (PDF) is appended to this article as a Supplement. Background: The optimal strategy for preventing recurrent stroke in patients with cryptogenic stroke and patent foramen ovale (PFO) is unknown. Purpose: To compare transcatheter PFO closure with medical therapy alone for prevention of recurrent stroke in patients with PFO and cryptogenic stroke. Data Sources: PubMed and the Cochrane Library (without language restrictions) from inception to October 2017, reference lists, and abstracts from cardiology meetings. Study Selection: Randomized trials enrolling adults with PFO and cryptogenic stroke that compared stroke outcomes (main outcome) and potential harms in those receiving transcatheter device closure versus medical therapy alone. Data Extraction: Two investigators independently extracted study data and rated risk of bias. Data Synthesis: Of 5 trials, 1 was excluded because it used a device that is no longer available due to high rates of complications and failure. Four high-quality trials enrolling 2531 patients showed that PFO closure decreased the absolute risk for recurrent stroke by 3.3% (risk difference, −0.033 [95% CI, −0.062 to −0.004]) compared with medical therapy. The treatment strategies did not differ in rates of transient ischemic attack or major bleeding. Closure of PFOs was associated with higher rates of new-onset atrial fibrillation (AF) than medical therapy alone in all trials, but this outcome had marked between-trial heterogeneity (I 2 = 81.9%), and high event rates in some groups resulted in extreme values for CIs. Limitation: Heterogeneity of device type and antithrombotic therapy across trials, small numbers for some outcomes, and heterogeneous and inconclusive AF results. Conclusion: In patients with PFO and cryptogenic stroke, transcatheter device closure decreases risk for recurrent stroke compared with medical therapy alone. Because recurrent stroke rates are low even with medical therapy alone and PFO closure might affect AF risk, shared decision making is crucial for this treatment. Primary Funding Source: None.
Provider Types and Outcomes in Obstructive Sleep Apnea Case Finding and Treatment: A Systematic Review: Annals of Internal Medicine: Vol 168, No 3
Background: Obstructive sleep apnea (OSA) diagnosis and care models rely on sleep specialist physicians (SSPs) and can be expensive and inefficient. Purpose: To assess OSA case-finding accuracy and comparative effectiveness of care by non–sleep specialists (NSSs) and SSPs. Data Sources: MEDLINE and CINAHL from January 2000 through July 2017. Study Selection: English-language trials or observational studies comparing case finding or care by SSPs versus providers not specifically trained as SSPs (NSSs) for adults with suspected or diagnosed OSA. Data Extraction: One investigator extracted data and assessed risk of bias and strength of evidence, with confirmation by a second investigator. Primary outcomes were patient-centered (mortality, access to care, quality of life, patient satisfaction, adherence, symptom scores, and adverse events). Intermediate outcomes included resource use, costs, time to initiation of treatment, and case finding. Data Synthesis: Four observational studies (n = 580; mean age, 52 years; 77% male) reported good agreement between NSSs and SSPs on appropriate diagnostic testing and classification of OSA severity (low-strength evidence). Five randomized trials and 3 observational studies (n = 1515; mean age, 52 years; 68% male) found that care provided by NSSs and SSPs resulted in similar quality of life, adherence, and symptom scores (low-strength evidence). Evidence was insufficient for access to care and adverse events. Limitations: Many outcomes were reported infrequently or not at all. Many NSSs had extensive training or experience in sleep medicine, which limits generalizability of findings to providers with less experience. Conclusion: Care by NSSs and SSPs resulted in similar outcomes in adults with known or suspected OSA. Studies are needed to determine care model implementation and reproducibility of results in nonacademic settings and among less experienced NSSs. Primary Funding Source: Department of Veterans Affairs, Veterans Health Administration, Office of Research and Development, Quality Enhancement Research Initiative. (PROSPERO: CRD42016036810 [full Veterans Affairs Evidence-based Synthesis Program report])
Lost in Translation: Linking Biomedical Research and Clinical Practice at the National Institutes of Health, 1977 to 2013
This article examines the history and effect of the Consensus Development Program (CDP) at the National Institutes of Health (NIH). Introduced at a time when the relationship between the U.S. public and the medical profession was at a nadir, the CDP frequently placed the NIH in the middle of broader debates in medical practice and health policy during the last quarter of the 20th century. Drawing on published and archival sources, this paper sheds light on the challenges associated with collecting, assessing, and communicating evidence to medical professionals and convincing them to act on it in the name of improved health care. Administrators at the NIH sought a middle ground between changing medical practice and respecting professional autonomy, with varying degrees of success. This debate has continued implications today as tensions persist between scientific guidelines and the clinical medicine practiced by physicians and expected by patients.
Interactions Between Physicians and Skilled Home Health Care Agencies in the Certification of Medicare Beneficiaries' Plans of Care: Results of a Nationally Representative Survey
Background: Physicians are required to certify a plan of care for patients who receive Medicare skilled home health care (SHHC) services. The Centers for Medicare & Medicaid Services form 485 (CMS-485) is typically used for certification of SHHC plans of care and for interactions between SHHC agencies and physicians. Little is known about how physicians use the CMS-485 or their perceptions of its usefulness with respect to coordinating care with SHHC agencies. Objective: To determine how physicians interact with SHHC agencies and use the CMS-485 in care coordination for patients receiving SHHC services. Design: Mailed survey. Setting: Nationally representative random sample. Participants: Physicians from the American Medical Association Physician Masterfile specializing in family or general medicine (excluding adolescent and sports medicine), geriatrics, geriatric psychiatry, internal medicine, or hospice and palliative medicine. Measurements: Time spent reviewing the plan of care and experiences with making changes and communicating with SHHC clinicians. Results: The response rate after 3 mailings was 53% (1044 of 1968). Of 1005 respondents who provided patient care, 72% had certified at least 1 plan of care in the past year. Nearly half (47%) reported spending less than 1 minute reviewing the CMS-485 before certification, whereas 21% reported spending at least 2 minutes. Physicians typically interacted with multiple SHHC agencies by fax or mail. Approximately 80% rarely or never changed an order on the CMS-485, and 78.3% rarely or never contacted SHHC clinicians with questions about information. The mean reported ease of contacting the SHHC agency was 4.7 (SD, 2.3) on a scale of 1 (easy) to 10 (difficult). Limitation: Self-reported data and 53% response rate. Conclusion: The CMS-485 does not meaningfully engage physicians. Physicians spend little time reviewing or acting on the SHHC plan of care. Strategies to enhance meaningful communication between SHHC agencies and physicians are needed. Primary Funding Source: National Institute on Aging and National Institute of Mental Health.