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Dive into the research topics where Anthony J. Schaeffer is active.

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Featured researches published by Anthony J. Schaeffer.


Clinical Infectious Diseases | 2011

International Clinical Practice Guidelines for the Treatment of Acute Uncomplicated Cystitis and Pyelonephritis in Women: A 2010 Update by the Infectious Diseases Society of America and the European Society for Microbiology and Infectious Diseases

Kalpana Gupta; Thomas M. Hooton; Kurt G. Naber; Richard Colgan; Loren G. Miller; Gregory J. Moran; Lindsay E. Nicolle; Raul Raz; Anthony J. Schaeffer; David E. Soper; Miami Florida

A Panel of International Experts was convened by the Infectious Diseases Society of America (IDSA) in collaboration with the European Society for Microbiology and Infectious Diseases (ESCMID) to update the 1999 Uncomplicated Urinary Tract Infection Guidelines by the IDSA. Co-sponsoring organizations include the American Congress of Obstetricians and Gynecologists, American Urological Association, Association of Medical Microbiology and Infectious Diseases-Canada, and the Society for Academic Emergency Medicine. The focus of this work is treatment of women with acute uncomplicated cystitis and pyelonephritis, diagnoses limited in these guidelines to premenopausal, non-pregnant women with no known urological abnormalities or co-morbidities. The issues of in vitro resistance prevalence and the ecological adverse effects of antimicrobial therapy (collateral damage) were considered as important factors in making optimal treatment choices and thus are reflected in the rankings of recommendations.


Clinical Infectious Diseases | 1999

Guidelines for Antimicrobial Treatment of Uncomplicated Acute Bacterial Cystitis and Acute Pyelonephritis in Women

John W. Warren; Elias Abrutyn; J. Richard Hebel; James R. Johnson; Anthony J. Schaeffer; Walter E. Stamm

This is part of the series of practice guidelines commissioned by the Infectious Diseases Society of America (IDSA) through its Practice Guidelines Committee. The purpose of this guideline is to provide assistance to clinicians in the diagnosis and treatment of two specific types of urinary tract infections (UTIs): uncomplicated, acute, symptomatic bacterial cystitis and acute pyelonephritis in women. The guideline does not contain recommendations for asymptomatic bacteriuria, complicated UTIs, Foley catheter-associated infections, UTIs in men or children, or prostatitis. The targeted providers are internists and family practitioners. The targeted groups are immunocompetent women. Criteria are specified for determining whether the inpatient or outpatient setting is appropriate for treatment. Differences from other guidelines written on this topic include use of laboratory criteria for diagnosis and approach to antimicrobial therapy. Panel members represented experts in adult infectious diseases and urology. The guidelines are evidence-based. A standard ranking system is used for the strength of the recommendation and the quality of the evidence cited in the literature reviewed. The document has been subjected to external review by peer reviewers as well as by the Practice Guidelines Committee and was approved by the IDSA Council, the sponsor and supporter of the guideline. The American Urologic Association and the European Society of Clinical Microbiology and Infectious Diseases have endorsed it. An executive summary and tables highlight the major recommendations. Performance measures are described to aid in monitoring compliance with the guideline. The guideline will be listed on the IDSA home page at http://www.idsociety.org It will be evaluated for updating in 2 years.


Clinical Infectious Diseases | 2005

Infectious Diseases Society of America Guidelines for the Diagnosis and Treatment of Asymptomatic Bacteriuria in Adults

Lindsay E. Nicolle; Suzanne F. Bradley; Richard Colgan; James C. Rice; Anthony J. Schaeffer; Thomas M. Hooton

1. The diagnosis of asymptomatic bacteriuria should be based on results of culture of a urine specimen collected in a manner that minimizes contamination (A-II) (table 1). • For asymptomatic women, bacteriuria is defined as 2 consecutive voided urine specimens with isolation of the same bacterial strain in quantitative counts 10 cfu/mL (B-II). • A single, clean-catch voided urine specimen with 1 bacterial species isolated in a quantitative count 10 cfu/mL identifies bacteriuria in men (BIII). • A single catheterized urine specimen with 1 bacterial species isolated in a quantitative count 10 cfu/mL identifies bacteriuria in women or men (A-II). 2. Pyuria accompanying asymptomatic bacteriuria is not an indication for antimicrobial treatment (A-II). 3. Pregnant women should be screened for bacteriuria by urine culture at least once in early pregnancy, and they should be treated if the results are positive (A-I). • The duration of antimicrobial therapy should be


Clinical Infectious Diseases | 2010

Diagnosis, Prevention, and Treatment of Catheter-Associated Urinary Tract Infection in Adults: 2009 International Clinical Practice Guidelines from the Infectious Diseases Society of America

Thomas M. Hooton; Suzanne F. Bradley; Diana D. Cardenas; Richard Colgan; Suzanne E. Geerlings; James C. Rice; Sanjay Saint; Anthony J. Schaeffer; Paul A. Tambayh; Peter Tenke; Lindsay E. Nicolle

Guidelines for the diagnosis, prevention, and management of persons with catheter-associated urinary tract infection (CA-UTI), both symptomatic and asymptomatic, were prepared by an Expert Panel of the Infectious Diseases Society of America. The evidence-based guidelines encompass diagnostic criteria, strategies to reduce the risk of CA-UTIs, strategies that have not been found to reduce the incidence of urinary infections, and management strategies for patients with catheter-associated asymptomatic bacteriuria or symptomatic urinary tract infection. These guidelines are intended for use by physicians in all medical specialties who perform direct patient care, with an emphasis on the care of patients in hospitals and long-term care facilities.


Proceedings of the National Academy of Sciences of the United States of America | 2009

Nanoparticle-based bio-barcode assay redefines “undetectable” PSA and biochemical recurrence after radical prostatectomy

C. Shad Thaxton; Robert Elghanian; Audrey D. Thomas; Savka I. Stoeva; Jae Seung Lee; Norm D. Smith; Anthony J. Schaeffer; Helmut Klocker; Wolfgang Horninger; Georg Bartsch; Chad A. Mirkin

We report the development of a previously undescribed gold nanoparticle bio-barcode assay probe for the detection of prostate specific antigen (PSA) at 330 fg/mL, automation of the assay, and the results of a clinical pilot study designed to assess the ability of the assay to detect PSA in the serum of 18 men who have undergone radical prostatectomy for prostate cancer. Due to a lack of sensitivity, available PSA immunoassays are often not capable of detecting PSA in the serum of men after radical prostatectomy. This new bio-barcode PSA assay is ≈300 times more sensitive than commercial immunoassays. Significantly, with the barcode assay, every patient in this cohort had a measurable serum PSA level after radical prostatectomy. Patients were separated into categories based on PSA levels as a function of time. One group of patients showed low levels of PSA with no significant increase with time and did not recur. Others showed, at some point postprostatectomy, rising PSA levels. The majority recurred. Therefore, this new ultrasensitive assay points to significant possible outcomes: (i) The ability to tell patients, who have undetectable PSA levels with conventional assays, but detectable and nonrising levels with the barcode assay, that their cancer will not recur. (ii) The ability to assign recurrence earlier because of the ability to measure increasing levels of PSA before conventional tools can make such assignments. (iii) The ability to use PSA levels that are not detectable with conventional assays to follow the response of patients to adjuvant or salvage therapies.


The Journal of Urology | 2012

Targeted antimicrobial prophylaxis using rectal swab cultures in men undergoing transrectal ultrasound guided prostate biopsy is associated with reduced incidence of postoperative infectious complications and cost of care.

Aisha Taylor; Teresa R. Zembower; Robert B. Nadler; Marc H. Scheetz; John Cashy; Diana K. Bowen; Adam B. Murphy; Elodi Dielubanza; Anthony J. Schaeffer

PURPOSE We evaluated targeted antimicrobial prophylaxis in men undergoing transrectal ultrasound guided prostate biopsy based on rectal swab culture results. MATERIALS AND METHODS From July 2010 to March 2011 we studied differences in infectious complications in men who received targeted vs standard empirical ciprofloxacin prophylaxis before transrectal ultrasound guided prostate biopsy. Targeted prophylaxis used rectal swab cultures plated on selective media containing ciprofloxacin to identify fluoroquinolone resistant bacteria. Patients with fluoroquinolone susceptible organisms received ciprofloxacin while those with fluoroquinolone resistant organisms received directed antimicrobial prophylaxis. We identified men with infectious complications within 30 days after transrectal ultrasound guided prostate biopsy using the electronic medical record. RESULTS A total of 457 men underwent transrectal ultrasound guided prostate biopsy, and of these men 112 (24.5%) had rectal swab obtained while 345 (75.5%) did not. Among those who received targeted prophylaxis 22 (19.6%) men had fluoroquinolone resistant organisms. There were no infectious complications in the 112 men who received targeted antimicrobial prophylaxis, while there were 9 cases (including 1 of sepsis) among the 345 on empirical therapy (p=0.12). Fluoroquinolone resistant organisms caused 7 of these infections. The total cost of managing infectious complications in patients in the empirical group was


Annals of Internal Medicine | 2004

Ciprofloxacin or Tamsulosin in Men with Chronic Prostatitis/Chronic Pelvic Pain Syndrome: A Randomized, Double-Blind Trial

Richard B. Alexander; Kathleen J. Propert; Anthony J. Schaeffer; J. Richard Landis; J. Curtis Nickel; Michael P. O'Leary; Michel A. Pontari; Mary McNaughton-Collins; Daniel A. Shoskes; Craig V. Comiter; Nand S. Datta; Jackson E. Fowler; Robert B. Nadler; Scott I. Zeitlin; Jill S. Knauss; Yanlin Wang; John W. Kusek; Leroy M. Nyberg; Mark S. Litwin

13,219. The calculated cost of targeted vs empirical prophylaxis per 100 men undergoing transrectal ultrasound guided prostate biopsy was


Medical Clinics of North America | 2011

Urinary tract infections in women.

Elodi Dielubanza; Anthony J. Schaeffer

1,346 vs


The Journal of Urology | 1987

A Comparison of Endoscopic Suspension of the Vesical Neck With Suprapubic Vesicourethropexy for Treatment of stress Urinary Incontinence

Julia R. Spencer; Vincent J. O’Conor; Anthony J. Schaeffer

5,598, respectively. Cost-effectiveness analysis revealed that targeted prophylaxis yielded a cost savings of


American Journal of Human Genetics | 2004

Comparative Genomic Hybridization–Array Analysis Enhances the Detection of Aneuploidies and Submicroscopic Imbalances in Spontaneous Miscarriages

Anthony J. Schaeffer; June Chung; Konstantina Heretis; Andrew Wong; David H. Ledbetter; Christa Lese Martin

4,499 per post-transrectal ultrasound guided prostate biopsy infectious complication averted. Per estimation, 38 men would need to undergo rectal swab before transrectal ultrasound guided prostate biopsy to prevent 1 infectious complication. CONCLUSIONS Targeted antimicrobial prophylaxis was associated with a notable decrease in the incidence of infectious complications after transrectal ultrasound guided prostate biopsy caused by fluoroquinolone resistant organisms as well as a decrease in the overall cost of care.

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J. Richard Landis

University of Pennsylvania

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John W. Kusek

National Institutes of Health

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