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44 citation(s) found for "Wu, Billy".

Allocating scarce resources in real-time to reduce heart failure readmissions: a prospective, controlled study
Amarasingham, Ruben, Patel, Parag C. , Toto, Kathleen H., Nelson, Lauren L., Swanson, Timothy S. , Moore, Billy J. , Xie, Bin , Zhang, Song , Alvarez, Kristin , Ma, Ying , Kollipara, Usha K., Drazner, Mark H. , Halm, Ethan A. , Alvarez, Kristin

BMJ Quality & Safety | August 1, 2013 | Volume: 22 | Issue: 12 | Pages: 998-1005

10.1136/bmjqs-2013-001901 | PMID 23904506 Get It

Objective To test a multidisciplinary approach to reduce heart failure (HF) readmissions that tailors the intensity of care transition intervention to the risk of the patient using a suite of electronic medical record (EMR)-enabled programmes. Methods A prospective controlled before and after study of adult inpatients admitted with HF and two concurrent control conditions (acute myocardial infarction (AMI) and pneumonia (PNA)) was performed between 1 December 2008 and 1 December 2010 at a large urban public teaching hospital. An EMR-based software platform stratified all patients admitted with HF on a daily basis by their 30-day readmission risk using a published electronic predictive model. Patients at highest risk received an intensive set of evidence-based interventions designed to reduce readmission using existing resources. The main outcome measure was readmission for any cause and to any hospital within 30 days of discharge. Results There were 834 HF admissions in the pre-intervention period and 913 in the post-intervention period. The unadjusted readmission rate declined from 26.2% in the pre-intervention period to 21.2% in the post-intervention period (p=0.01), a decline that persisted in adjusted analyses (adjusted OR (AOR)=0.73; 95% CI 0.58 to 0.93, p=0.01). In contrast, there was no significant change in the unadjusted and adjusted readmission rates for PNA and AMI over the same period. There were 45 fewer readmissions with 913 patients enrolled and 228 patients receiving intervention, resulting in a number needed to treat (NNT) ratio of 20. Conclusions An EMR-enabled strategy that targeted scarce care transition resources to high-risk HF patients significantly reduced the risk-adjusted odds of readmission.
Safety and efficacy of peripheral nerve stimulation of the occipital nerves for the management of chronic migraine: Results from a randomized, multicenter, double-blinded, controlled study
Silberstein, Stephen D., Saper, Joel R., Huh, Billy , Sharan, Ashwini , Reed, K. L. , Mogilner, Alon Y. , Goldstein, Jerome , Trentman, Terrence L. , Vaisman, Julien, Ordia, Joseph, Weber, Peter, Levy, Robert M. , Diaz, Roni L, Washburn, Stephanie N., Dodick, David W. , Slavin, Konstantin V. , Narouze, Samer , Weber, Peter, Deer, Timothy R. , Diaz, Roni L., Mekhail, Nagy

Cephalalgia | October 4, 2012 | Volume: 32 | Issue: 16 | Pages: 1165-1179

10.1177/0333102412462642 | PMID 23034698 Get It

Background: Chronic migraine (CM) is a debilitating neurological disorder with few treatment options. Peripheral nerve stimulation (PNS) of the occipital nerves is a potentially promising therapy for CM patients. Methods: In this randomized, controlled multicenter study, patients diagnosed with CM were implanted with a neurostimulation device near the occipital nerves and randomized 2:1 to active ( n = 105) or sham ( n = 52) stimulation. The primary endpoint was a difference in the percentage of responders (defined as patients that achieved a ≥50% reduction in mean daily visual analog scale scores) in each group at 12 weeks. Results: There was not a significant difference in the percentage of responders in the Active compared with the Control group (95% lower confidence bound (LCB) of −0.06; p = 0.55). However, there was a significant difference in the percentage of patients that achieved a 30% reduction ( p = 0.01). Importantly, compared with sham-treated patients, there were also significant differences in reduction of number of headache days (Active Group = 6.1, baseline = 22.4; Control Group = 3.0, baseline = 20.1; p = 0.008), migraine-related disability ( p = 0.001) and direct reports of pain relief ( p = 0.001). The most common adverse event was persistent implant site pain. Conclusion: Although this study failed to meet its primary endpoint, this is the first large-scale study of PNS of the occipital nerves in CM patients that showed significant reductions in pain, headache days, and migraine-related disability. Additional controlled studies using endpoints that have recently been identified and accepted as clinically meaningful are warranted in this highly disabled patient population with a large unmet medical need. Trial registration: Clinical trials.gov (NCT00615342).
Open Intracardiac Repair for Complete Transposition of the Great Arteries
Hightower, Billy M., Weidman, William H., Kirklin, John W.

Circulation | June 11, 2012 | Volume: 33 | Issue: 4s1 | Pages: No page available

10.1161/01.cir.33.4s1.i-19 | PMID 5933595 Get It

Seventeen of 44 patients undergoing operation for complete correction of transposition of the great arteries survived operation and were dismissed to return home. Three late deaths followed. Mortality remains high among infants less than one year old and among patients of all ages who have severely elevated pulmonary vascular resistance. Nine of the last 13 patients, in whom repair was accomplished by the Mustard technique, have survived. Late results in all surviving patients have generally been excellent.
Evaluation of the Invader Assay for Genotyping Hepatitis C Virus
Germer, Jeffrey J., Yung, Billy, Mitchell, P. Shawn, Yao, Joseph D. , Majewski, David , Yung, Billy

Journal of Clinical Microbiology | February 2, 2006 | Volume: 44 | Issue: 2 | Pages: 318-323

10.1128/jcm.44.2.318-323.2006 | PMID 16455877 Get It

ABSTRACT The Invader 1.0 assay (Invader HCV Genotyping Assay, version 1.0; Third Wave Technologies, Inc., Madison, WI) has been developed for the rapid differentiation of hepatitis C virus (HCV) genotypes 1 to 6 based on sequence variation within the HCV 5′ noncoding (NC) region. In the present study, we evaluated the compatibility of Invader 1.0 with the COBAS MONITOR (COBAS AMPLICOR HCV MONITOR Test, version 2.0; Roche Molecular Systems, Inc., Branchburg, NJ), COBAS AMPLICOR (COBAS AMPLICOR Hepatitis C Virus Test, version 2.0; Roche Molecular Systems, Inc.), and COBAS TaqMan (COBAS TaqMan HCV Test; Roche Molecular Systems, Inc.) assays. The minimum HCV RNA titers required for successful HCV genotyping (≥90% success rate) were 1,000 IU/ml for COBAS MONITOR, 100 IU/ml for COBAS AMPLICOR, and 10 IU/ml for COBAS TaqMan. Invader 1.0 results obtained from unpurified COBAS TaqMan amplification products of 111 retrospectively selected clinical serum specimens (genotypes 1 to 6, with virus titers ranging from 15.1 to 2.1 × 10 7 IU/ml) showed 98% concordance with results obtained from the TRUGENE HCV 5 ′ NC Genotyping Kit (Bayer HealthCare LLC, Tarrytown, NY), used in conjunction with COBAS AMPLICOR. Although the assay is sensitive, accurate, and easy to perform, additional optimization of the Invader 1.0 interpretive software (Invader Data Analysis Worksheet) may be necessary to reduce potential misidentification of HCV genotypes in low-titer specimens. In summary, Invader 1.0 is compatible with a variety of commercially available PCR-based HCV 5′ NC region amplification assays and is suitable for routine HCV genotyping in clinical laboratories.