54 results on '"Anthony J. Schaeffer"'
Search Results
2. Identifying variability in surgical practices and instrumentation for hypospadias repair across the Western Pediatric Urology Consortium (WPUC) network
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Justine R. Yamashiro, J. Christopher Austin, Luis H. Braga, Kai-Wen Chuang, Carol A. Davis-Dao, Sarah Hecht, Sarah A. Holzman, Antoine E. Khoury, Eric A. Kurzrock, Steven E. Lerman, Melissa McGrath, Paul A. Merguerian, Amanda F. Saltzman, Anthony J. Schaeffer, Casey Seideman, Jennifer S. Singer, Peter Wang, Elias J. Wehbi, Hsi-Yang Wu, and Renea M. Sturm
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Urology ,Pediatrics, Perinatology and Child Health - Published
- 2023
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3. Algorithms to Enhance Empiric Antimicrobial Choice for Outpatients With Afebrile Complicated Cystitis Reflects Importance of Status of the Urinary Tract and Patient Place of Residence
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Liqi Chen, Lauren Folgosa Cooley, Jason Cohen, and Anthony J. Schaeffer
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Adult ,Male ,medicine.drug_class ,Urology ,Urinary system ,Cephalosporin ,030232 urology & nephrology ,Microbial Sensitivity Tests ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Antibiotic resistance ,Cystitis ,Drug Resistance, Bacterial ,Ambulatory Care ,Humans ,Medicine ,Urinary Tract ,Retrospective Studies ,Univariate analysis ,Geography ,business.industry ,Odds ratio ,Middle Aged ,Antimicrobial ,United States ,Anti-Bacterial Agents ,Ciprofloxacin ,Cross-Sectional Studies ,Nitrofurantoin ,030220 oncology & carcinogenesis ,Urinary Tract Infections ,Female ,business ,Algorithm ,Algorithms ,medicine.drug - Abstract
OBJECTIVE To determine predictive factors for antimicrobial resistance patterns and to develop an antimicrobial treatment algorithm for afebrile outpatients presenting with complicated cystitis. MATERIALS AND METHODS We performed a retrospective, single-center, cross-sectional study of 2,891 outpatients with a diagnosed afebrile complicated cystitis from 2012 to 2018. For patients with confirmed urinary tract infection and antimicrobial sensitivities, univariate analyses and multivariable regression models were used to determine odds ratios for predicting resistance to trimethoprim-sulfamethoxazole, ciprofloxacin, nitrofurantoin, first-generation cephalosporin, and third-generation cephalosporin for the 2012-2016 data. Antimicrobial choice algorithms were created using 2012-2016 results and tested on 2017-2018 data. RESULTS For afebrile outpatients presenting with complicated cystitis, overall prevalence of resistance for trimethoprim-sulfamethoxazole, ciprofloxacin, nitrofurantoin, first-generation cephalosporin, and third-generation cephalosporin was 25.6%, 19.5%, 19.1%, 15.0%, and 6.9%, respectively. Consistent predictive factors influencing resistance to all 5 antimicrobials were patient place of residence (ZIP code), status of host urinary tract (complicated vs uncomplicated), and prior resistance to the antimicrobial. Resulting treatment algorithm for complicated cystitis (whether or not prior microbiologic data was available) outperformed real-life provider choice and our previously published algorithm for uncomplicated cystitis. CONCLUSION Treatment algorithms for urinary tract infections are dependent on patient place of residence (ZIP code), status of the host urinary tract (complicated or uncomplicated), and prior urine culture resistance data. When using our complicated cystitis treatment algorithm regardless of uropathogen, our results outperformed real-life scenario provider choice and our prior published algorithm for uncomplicated cystitis, which can help guide empiric antimicrobial choice.
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- 2020
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4. Algorithms Using Previous Resistance, Prior Antimicrobial Prescriptions, and Patient Place of Residence Enhance Empirical Therapy for Women With Uncomplicated Urinary Tract Infections
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Liqi Chen, Anthony J. Schaeffer, and Jason Cohen
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Urology ,030232 urology & nephrology ,Drug resistance ,Drug Prescriptions ,03 medical and health sciences ,0302 clinical medicine ,Antibiotic resistance ,Residence Characteristics ,Drug Resistance, Bacterial ,medicine ,Humans ,Medical prescription ,Retrospective Studies ,business.industry ,Retrospective cohort study ,Middle Aged ,Antimicrobial ,Anti-Bacterial Agents ,Ciprofloxacin ,Nitrofurantoin ,030220 oncology & carcinogenesis ,Urinary Tract Infections ,Female ,business ,Algorithm ,Empiric therapy ,Algorithms ,medicine.drug - Abstract
To evaluate how previous antimicrobial resistance, prior prescription data, and patient place of residence (ZIP code) can guide empirical therapy for uncomplicated urinary tract infections (UTI). Guidelines recommend empirical antimicrobial selection for women with symptoms of uncomplicated UTIs, most commonly trimethoprim-sulfamethoxazole (SXT), nitrofurantoin (NIT), or ciprofloxacin (CIP). Previous antimicrobial resistance and prior prescription data are potential predictors of resistance in subsequent urine cultures for UTIs. Also, there is evidence of geographic clustering of antimicrobial resistance for UTIs.Retrospective data from women (age ≥18) with an assigned diagnosis of UTI, submitting urine cultures as outpatients (2011-2018), were gathered. Univariate analyses and multivariable regression models were used to determine odds ratios for predicting resistance to SXT, NIT, and CIP on the 2011-2017 data. Antimicrobial choice algorithms were created using 2011-2017 results and tested on 2018 data.In the training cohort, 9455 women had diagnoses of uncomplicated UTIs and positive urine cultures. Prevalence of resistance for SXT, NIT, and CIP was 19.4%, 12.1%, and 10.3%, respectively. A urine culture with previous resistance, prior antimicrobial prescription within 2 years and ZIP code were the strongest predictors of a subsequent resistant culture. An algorithm based on these data had a success rate of 92.2%, compared to provider's choice (87.5%, P.001) or best theoretical outcomes with guidelines (90.0%, P = .048).Previous resistance, prior prescriptions, and patient ZIP code are predictors of subsequent resistance in patients with uncomplicated UTIs. Algorithms using these data can outperform real-world outcomes and guidelines.
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- 2020
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5. Reliability of grading of vesicoureteral reflux and other findings on voiding cystourethrography
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Ranjiv Mathews, Anthony J. Schaeffer, Alejandro Hoberman, Russell W. Chesney, Anastasia Ivanova, Gang Cui, Marva Moxey-Mims, Tej K. Mattoo, Caleb P. Nelson, J. Michael Zerin, Jeanne S. Chow, Saul P. Greenfield, and Myra A. Carpenter
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Male ,medicine.medical_specialty ,Cystography ,Voiding cystourethrogram ,Urology ,Concordance ,030232 urology & nephrology ,urologic and male genital diseases ,Severity of Illness Index ,Vesicoureteral reflux ,Article ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Cystourethrography ,Urethra ,Randomized controlled trial ,law ,030225 pediatrics ,medicine ,Humans ,Prospective Studies ,Child ,Grading (tumors) ,Grade level ,Observer Variation ,Vesico-Ureteral Reflux ,medicine.diagnostic_test ,business.industry ,Reflux ,Infant ,Reproducibility of Results ,medicine.disease ,United States ,female genital diseases and pregnancy complications ,Surgery ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Female ,Radiology ,business - Abstract
Summary Introduction Voiding cystourethrography (VCUG) is the modality of choice to diagnose vesicoureteral reflux (VUR). Although grading of VUR is essential for prognosis and clinical decision-making, the inter-observer reliability for grading has been shown to vary substantially. The Randomized Intervention for Children with VesicoUreteral Reflux (RIVUR) trial provides a large cohort of children with VUR to better understand the reliability of VCUG findings. Objective To determine the inter-observer consistency of the grade of VUR and other VCUG findings in a large cohort of children with VUR. Study design The RIVUR trial is a randomized controlled trial of antimicrobial prophylaxis in children with VUR diagnosed after UTI. Each enrollment VCUG was read by a local clinical (i.e. non-reference) radiologist, and independently by two blinded RIVUR reference radiologists. Reference radiologists' disagreements were adjudicated for trial purposes. The grade of VUR and other VCUG findings were extracted from the local clinical radiologist's report. The unit of analysis included individual ureters and individual participants. We compared the three interpretations for grading of VUR and other VCUG findings to determine the inter-observer reliability. Results Six-hundred and two non-reference radiology reports from 90 institutions were reviewed and yielded the grade of VUR for 560 left and 524 right ureters. All three radiologists agreed on VUR grade in only 59% of ureters; two of three agreed on 39% of ureters; and all three disagreed on 2% of ureters ( Table ). Agreement was better (≥92%) for other VCUG findings (e.g. bladder shape “normal”). The non-reference radiologists' grade of VUR differed from the reference radiologists' adjudicated grade by exactly one grade level in 19% of ureters, and by two or more grade levels in 2.2% of ureters. When the participant was the unit of analysis, all three radiologists agreed on the grade of VUR in both ureters in just 43% of cases. Discussion Our study shows considerable and clinically relevant variability in grading VUR by VCUG. This variability was consistent when comparing non-reference to the adjudicated reference radiologists' assessment and the reference radiologists to each other. This study was limited to children with a history of UTI and grade I–IV VUR and may not be generalizable to all children who have a VCUG. Conclusion The considerable inter-observer variability in VUR grading has both research and clinical implications, as study design, risk stratification, and clinical decision-making rely heavily on grades of VUR. Table . Study summary Characteristic No. of VCUG reports analyzed 602 Gender of participants Male 49 Female 553 Age in months at time of VCUG (median) [IQR] 11 [5,30] No. of ureters analyzed 1081 Reflux grade agreement Between non-reference and each reference radiologist (three-way) All three agree 638/1081 (59%) Two agree, one disagree 417/1081 (39%) All three disagree 27 (2%) Between non-reference and adjudicated reference radiologists' score (two-way) Agree 805 (75%) Disagree 275 (25%) Kappa (95% CI) 0.66 (0.62–0.69)
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- 2017
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6. Children's experience with daytime and nighttime urinary incontinence – A qualitative exploration
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Anthony J. Schaeffer, Karen Kuhlthau, Caleb P. Nelson, Matthew Migliozzi, Neha R. Malhotra, and Ilina Rosoklija
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education.field_of_study ,business.industry ,Urology ,media_common.quotation_subject ,Population ,030232 urology & nephrology ,Embarrassment ,Shame ,Developmental psychology ,03 medical and health sciences ,0302 clinical medicine ,Quality of life (healthcare) ,Content analysis ,030225 pediatrics ,Pediatrics, Perinatology and Child Health ,Medicine ,Anxiety ,Psychological resilience ,medicine.symptom ,business ,education ,media_common ,Qualitative research - Abstract
Summary Background Much of our knowledge about the impact of urinary incontinence (UI) on children is derived from surveys. While these studies provide an overview of the UI experience, personal interviews may offer additional nuances and a more detailed perspective of what the experience of UI is for children. Objective To conduct interviews and use qualitative analysis to explore the experiences of children with UI, with a particular focus on (1) the impact of UI on participants’ lives, (2) which coping strategies children with UI use, and (3) the emotional effects of UI. Study design Semi-structured interviews of children with non-neurogenic and non-anatomic UI recruited from a pediatric urology clinic were audio recorded and verbatim transcribed. Eligibility included: age 8–17 years, history of UI, English fluency, and being able to participate in a 30 min interview. Conventional content analysis was performed to identify themes directly from the transcripts. Coders independently and iteratively coded transcripts (intercoder reliability >0.85) until inductive thematic saturation was achieved. Results There were substantial practical and emotional impacts on the 30 (14 males, 16 females) children (median age 11.5 years) with UI. Participants relayed significant interference with social activities like sports and sleepovers, which often lead to avoidant behavior of these activities. By contrast, most stated that UI did not impair school performance. The most strongly and consistently expressed emotions were embarrassment and anxiety. Nevertheless, children described a wide variety of adaptations, including behavioral and cognitive, to manage their incontinence and its effects on their lives (Summary Table). Discussion This is the first qualitative study that describes the experiences and perspectives of children with UI. Surveys of this population suggest a lower health-related quality of life, particularly in emotional well-being, self-esteem and relationships. This work augments this body of literature and shows how UI interferes with their daily life and is a major source of embarrassment and anxiety. Despite this, children with UI display strong resilience and adapt to their condition. The study was limited in that the sample was biased to those presenting to a urology clinic and was not designed to compare differences in UI experience between ages, genders, or treatment types. Conclusion This study, the first qualitative exploration of the emotional responses and coping behaviors of children with UI, shows significant social impact and negative emotional responses but marked resiliency. These findings should be considered when developing a comprehensive treatment strategy for children with UI. Summary Table . Excerpts of Qualitative Analysis of 30 children with UI. Impacts and Adaptations Representative Quotes (Participant ID) Practical affects Sleepovers I don't do sleepovers anymore because I don't want to risk [an accident] (F) Sports If I have an accident while I'm doing a sport, it might interfere, because if I can't get changed and washed up because there's no bathroom nearby … (N) Emotional Impact Negative Embarrassment Well it's embarrassing, and it's uncomfortable … The smell, I really hate the smell, and I would get embarrassed about it … I feel embarrassed. I feel disappointed in myself. I feel like I've failed (L) Anxiety If it's a really long car ride, then … I get kind of scared that I'm going to have to go pee and there's going to be nowhere we can stop (J) Shame It makes you feel like you're different. You're not like they are; you're different. You're not at the same level they are; you're under them somewhere … It's kind of like knowing that you're hiding this really ugly secret that you don't want anybody to find out … It's been a struggle. It almost makes me feel kind of childish in a way (H) Adaptations Preventative Don't hold it in … Even if you don't have to go, go to the bathroom, and that will prevent you from having accidents (O) Mitigating At home, I'll change. But if I'm at recess, or something, I'll tie my sweatshirt around me, or if I don't have a sweatshirt, I'll try to cover it with my shirt, sometimes, until we get inside, because I always carry around some pads and a change of underwear in my bag (P)
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- 2020
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7. Urinary Tract Infection and Bacteriuria in Pregnancy
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Anthony J. Schaeffer and Alexander P. Glaser
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medicine.medical_specialty ,Bacteriuria ,Urology ,Urinary system ,urologic and male genital diseases ,fluids and secretions ,Pregnancy ,Cystitis ,medicine ,Humans ,Pregnancy Complications, Infectious ,Asymptomatic Infections ,Asymptomatic bacteriuria ,Upper urinary tract ,Fetus ,Pyelonephritis ,business.industry ,Obstetrics ,Contraindications ,bacterial infections and mycoses ,medicine.disease ,Antimicrobial ,female genital diseases and pregnancy complications ,Anti-Bacterial Agents ,Urinary Tract Infections ,Female ,business ,After treatment - Abstract
Bacteriuria during pregnancy may be classified as asymptomatic bacteriuria, infections of the lower urinary tract (cystitis), or infections of the upper urinary tract (pyelonephritis). Lower tract bacteriuria is associated with an increased risk of developing pyelonephritis in pregnancy, which is itself associated with adverse maternal and fetal outcomes. Pregnant women should be screened for the presence of bacteriuria early in pregnancy. All bacteriuria in pregnancy should be treated, and antimicrobial choice in pregnancy should reflect safety for both the mother and the fetus. After treatment of bacteriuria, patients should be followed closely due to risk of recurrent bacteriuria.
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- 2015
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8. Durability of Flexible Cystoscopes in the Outpatient Setting
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Chris M. Gonzalez, Anthony J. Schaeffer, and John J. McGill
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Protocol (science) ,medicine.medical_specialty ,business.industry ,Urology ,Perforation (oil well) ,Cystoscope ,Cystoscopy ,Equipment Design ,Cystoscopes ,Durability ,Surgery ,Ambulatory care ,Outpatients ,Ambulatory Care ,Outpatient setting ,Fiber Optic Technology ,Humans ,Medicine ,Outpatient clinic ,Operations management ,Prospective Studies ,business - Abstract
Objective To ascertain cystoscope durability in relation to usage and cost in the outpatient setting. Methods Six flexible cystoscopes were provided to our outpatient clinic by 2 vendors. Five Wolf 7305.006S02 cystoscopes (Richard Wolf Medical Instruments Corporation, Vernon Hills, IL) and 1 Olympus CYF-5 (Olympus America, Center Valley, PA) were used 2477 times over a 14-month study period. Prospective data were accumulated on each cystoscope including type of procedure, number of uses until mechanical failure, physician usage, and maintenance costs. All staff was trained in proper handling and maintenance of cystoscopes utilizing an Occupational Safety and Health Administration (OSHA) approved protocol. Retrospective comparison was performed of 1346 cystoscopic procedures during the previous 8 months before implementation of the processing protocol, with data including type and quantity of mechanical failures along with maintenance costs. Results Five total study period failures occurred in 4 cystoscopes, with a mean of 495.4 procedures/failure. In 3 separate cystoscopes, failure occurred after 70 (perforation of working channel), 194 (leak in bending rubber), and 236 uses (hole in bending rubber). One cystoscope had 2 failures after 168 (cut in bending rubber) and 255 uses (failed leak test). During the retrospective period, there were 10 failures, with a mean of 134.6 procedures/failure. Four failures were secondary to crushed insertion tubes. Comparison of retrospective and study period costs revealed a 43.9% decrease from $9.64 per procedure to $5.41 per procedure. Conclusion Outpatient flexible cystoscope durability seems directly related to optimization of handling and storage of cystoscopes. Costs related to mechanical failure were reduced with a rigorous reprocessing protocol.
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- 2013
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9. The modern staged repair of classic bladder exstrophy: A detailed postoperative management strategy for primary bladder closure
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Anthony J. Schaeffer, John P. Gearhart, Nima Baradaran, Ranjiv Matthews, and Andrew A. Stec
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Male ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,Urinary Bladder ,Osteotomy ,Postoperative management ,Bladder closure ,medicine ,Humans ,Stage (cooking) ,Retrospective Studies ,Postoperative Care ,business.industry ,Bladder Exstrophy ,Infant, Newborn ,Disease Management ,Reproducibility of Results ,Retrospective cohort study ,Plastic Surgery Procedures ,Hospital Records ,medicine.disease ,Surgery ,Bladder exstrophy ,Treatment Outcome ,Parenteral nutrition ,Practice Guidelines as Topic ,Pediatrics, Perinatology and Child Health ,Urologic Surgical Procedures ,Female ,Ureteral Catheters ,business ,Follow-Up Studies - Abstract
Purpose Successful primary bladder closure of classic bladder exstrophy sets the stage for development of adequate bladder capacity and eventual voided continence. The postoperative pathway following primary bladder closure at the authors’ institution is quantitatively and qualitatively detailed. Materials and methods Sixty-five consecutive newborns (47 male) undergoing primary closure of classic bladder exstrophy were identified and data were extracted relating to immediate postoperative care. Overall success rate was utilized to validate the pathway. Results Mean age at time of primary closure was 4.6 days and mean hospital stay was 35.8 days. Osteotomy was performed in 19 patients (mean age 8.8 days), and was not required in 39 infants (mean age 2.9 days). All patients were immobilized for 4 weeks. Tunneled epidural analgesia was employed in 61/65 patients. All patients had ureteral catheters and a suprapubic tube, along with a comprehensive antibiotic regimen. Postoperative total parenteral nutrition was commonly administered, and enteral feedings started around day 4.6. Our success rate of primary closure was 95.4%. Conclusions A detailed and regimented plan for bladder drainage, immobilization, pain control, nutrition, antimicrobial prophylaxis, and adequate healing time is a cornerstone for the postoperative management of the primary closure of bladder exstrophy.
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- 2012
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10. Urinary Tract Infections in Women
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Elodi Dielubanza and Anthony J. Schaeffer
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medicine.medical_specialty ,High prevalence ,Primary Health Care ,business.industry ,Urinary system ,Age Factors ,General Medicine ,Drug resistance ,Drug Administration Schedule ,Anti-Bacterial Agents ,Pathogenesis ,Antibiotic resistance ,Clinical Protocols ,Risk Factors ,Infectious disease (medical specialty) ,Drug Resistance, Multiple, Bacterial ,Urinary Tract Infections ,Immunology ,Epidemiology ,medicine ,Humans ,Infection control ,Female ,Intensive care medicine ,business - Abstract
Urinary tract infection (UTI) is the most common extraintestinal infectious disease entity in women worldwide, and perhaps one of the most formidable challenges in clinical practice given its high prevalence, frequent recurrence, and myriad associated morbidities in the setting of rapidly evolving antimicrobial resistance. Achieving timely symptom relief and infection control and preventing morbidity, growth of resistant organisms, and recurrent infection are often difficult. This article reviews epidemiology and pathogenesis of urinary tract infection in women; characterizes common patterns of infection, clinical red flags, and appropriate laboratory testing and imaging; explores emerging patterns of antimicrobial resistance; and reviews the updated guidelines for the treatment of uncomplicated UTI in women.
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- 2011
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11. Genitourinary Pain Syndromes, Prostatitis, and Lower Urinary Tract Symptoms
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Anthony J. Schaeffer and Brian V. Le
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Male ,medicine.medical_specialty ,Urology ,Urinary system ,Prostatitis ,Pelvic Pain ,urologic and male genital diseases ,Diagnosis, Differential ,Prostate ,Lower urinary tract symptoms ,Surveys and Questionnaires ,Internal medicine ,medicine ,Humans ,Genitourinary pain ,Pain syndrome ,business.industry ,Urinary Bladder Diseases ,Interstitial cystitis ,Syndrome ,medicine.disease ,medicine.anatomical_structure ,Chronic Disease ,Etiology ,business ,Prostatism - Abstract
The overlap of pain and urinary voiding symptoms is common for urologic patients. The etiology of these syndromes is frequently multifactorial and due to disorders of the bladder and/or prostate. The evaluation and treatment of these syndromes continues to evolve. Here we summarize the general approach to evaluation and treatment of these pain syndromes.
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- 2009
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12. Immunoactive prophylaxis of recurrent urinary tract infections: a meta-analysis
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Kurt G. Naber, Anthony J. Schaeffer, Yong Hyun Cho, and Tetsuro Matsumoto
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Microbiology (medical) ,medicine.medical_specialty ,medicine.drug_class ,Urinary system ,medicine.medical_treatment ,Antibiotics ,Immunization, Secondary ,Placebo ,Chemoprevention ,Immunostimulant ,Double blind ,Internal medicine ,Secondary Prevention ,medicine ,Humans ,Pharmacology (medical) ,Antigens, Bacterial ,Clinical Trials as Topic ,business.industry ,Immunotherapy, Active ,General Medicine ,Immunotherapy ,Bacterial vaccine ,Administration, Intravaginal ,Infectious Diseases ,Meta-analysis ,Bacterial Vaccines ,Urinary Tract Infections ,Immunology ,Female ,business - Abstract
Recurrent urinary tract infections (UTIs) are very common, particularly among women in their reproductive years. Alternatives to antibacterial prophylaxis are needed, particularly measures to increase host defences. Various bacterial lysates have been proposed with this indication. The objective of this review and meta-analysis was to assess the efficacy and safety of bacterial lysates in the management of recurrent UTIs. Electronic databases identified 11 studies with the descriptors 'urinary tract infection', 'immunotherapy' or 'vaccines' and 'double blind'. Seven of the studies dealt with an oral immunostimulant (OM-89), of which about five (1000 adult patients) were retained for analysis with an observation period of 6-12 months. The mean number of UTIs was significantly lower in OM-89-treated patients in all the trials analysed (mean 39%), as was the use of antibacterials. Four of the studies dealt with a vaginal vaccine, of which three small studies were retained for analysis (220 adult patients). The results suggest that this vaginal vaccine is effective when administered with a booster cycle (no recurrent UTI in 50% vs. 14% with placebo). No blind controlled studies could be identified with other bacterial lysates claiming the same indication. In conclusion, among the various immunotherapeutic products, studies were published only for one product (OM-89) that are in accordance with current standards. This product was shown to be effective under conditions of daily practice. The second product (vaginal vaccine) also appears to be effective but adequate phase III studies are necessary.
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- 2009
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13. Differentiation-induced uroplakin III expression promotes urothelial cell death in response to uropathogenic E. coli
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Anthony J. Schaeffer, David J. Klumpp, Praveen Thumbikat, and Ruth E. Berry
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Programmed cell death ,Pathology ,medicine.medical_specialty ,Urothelial Cell ,Cellular differentiation ,Molecular Sequence Data ,Urinary Bladder ,Immunology ,Apoptosis ,Biology ,urologic and male genital diseases ,Microbiology ,Article ,Cell Line ,Bladder Urothelium ,Mice ,Cystitis ,Escherichia coli ,Uroplakins ,medicine ,Animals ,Humans ,Amino Acid Sequence ,Urothelium ,Escherichia coli Infections ,Uroplakin III ,Membrane Glycoproteins ,Cell Differentiation ,bacterial infections and mycoses ,female genital diseases and pregnancy complications ,Mice, Inbred C57BL ,Infectious Diseases ,Cell culture ,Cancer research ,Female ,Peptides - Abstract
Uropathogenic E. coli (UPEC) expressing type 1 pili underlie most urinary tract infections (UTIs). UPEC adherence to the bladder urothelium induces a rapid apoptosis and exfoliation of terminally-differentiated urothelial cells, a critical event in pathogenesis. Of the four major uroplakin proteins that are densely expressed on superficial urothelial cells, UPIa serves as the receptor for type 1-piliated UPEC, but the contributions of uroplakins to cell death are not known. We examined the role of differentiation and uroplakin expression on UPEC-induced cell death. Utilizing in vitro models of urothelial differentiation, we demonstrated induction of tissue-specific differentiation markers including uroplakins. UPEC-induced urothelial cell death was shown to increase with enhanced differentiation but required expression of uroplakin III: infection with an adenovirus encoding uroplakin III significantly increased cell death, while siRNA directed against uroplakin III abolished UPEC-induced cell death. In a murine model of UTI where superficial urothelial cells were selectively eroded to expose less differentiated cells, urothelial apoptosis was reduced, indicating a requirement for differentiation in UPEC-induced apoptosis in vivo. These data suggest that induction of uroplakin III during urothelial differentiation sensitizes cells to UPEC-induced death. Thus, uroplakin III plays a pivotal role in UTI pathogenesis.
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- 2009
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14. Urology Residency and Research: Round Table Discussion and Plea for Innovation
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William D. Steers, James E. Montie, Monica Liebert, Anthony J. Schaeffer, Doris Stoll, Jill A. Macoska, and Gary J. Faerber
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medicine.medical_specialty ,business.industry ,Urology ,Research methodology ,Resident education ,Variety (cybernetics) ,Scholarship ,Plea ,Round table ,Medicine ,Biostatistics ,business ,Curriculum - Abstract
OBJECTIVES To evaluate the current and future states of resident research experience in urology residencies in the United States. METHODS Round table discussion with leading educators and Urology faculty from a university urology residency. RESULTS Research exposure has rapidly diminished in urology residencies for a variety of reasons. There are multiple barriers to resident research and only a small number of residencies will be able to provide protected time. Nevertheless, an understanding of research methodology and biostatistics is required to be a successful clinician. CONCLUSIONS Some barriers to resident research can be addressed by better integration of residency and fellowships. Flexibility in the format of resident education may allow introduction of new methods to encourage resident research scholarship. An education program with a research curriculum is needed for all residencies.
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- 2008
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15. Epidemiology and evaluation of chronic pelvic pain syndrome in men
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Anthony J. Schaeffer
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Male ,Microbiology (medical) ,Gynecology ,medicine.medical_specialty ,Urinary urgency ,business.industry ,Pelvic pain ,Urinary system ,Urology ,Prostatitis ,Rectum ,General Medicine ,medicine.disease ,Perineum ,Infectious Diseases ,medicine.anatomical_structure ,medicine ,Humans ,Abdomen ,Pharmacology (medical) ,medicine.symptom ,business ,Penis - Abstract
Chronic pelvic pain syndrome (CPPS), formerly known as chronic abacterial prostatitis, is characterised by pelvic or perineal pain without evidence of urinary tract infection. It manifests as pain in a variety of areas including the perineum, rectum, prostate, penis, testicles and abdomen [Litwin MS, McNaughton-Collins M, Fowler Jr FJ, Nickel JC, Calhoun EA, Pontari MA, et al. The National Institutes of Health chronic prostatitis symptom index: development and validation of a new outcome measure. Chronic Prostatitis Collaborative Research Network. J Urol 1999;2:369–75]. It is also frequently associated with symptoms including urinary urgency, frequency, hesitancy and poor or interrupted flow. CPPS may be associated with white cells in the prostatic secretions (inflammatory) (NIH-3A), or white cell absence in the prostatic secretions (non-inflammatory) (NIH-3B) [Krieger JN, Nyberg Jr L, Nickel JC. NIH consensus definition and classification of prostatitis. JAMA 1999;3:236–7].
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- 2008
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16. Asymptomatic Bacteriuria and Symptomatic Urinary Tract Infections During Pregnancy
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Anthony J. Schaeffer and Amanda M. Macejko
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medicine.medical_specialty ,Pregnancy ,Fetus ,Complications of pregnancy ,Bacteriuria ,business.industry ,Obstetrics ,Urology ,Urinary system ,bacterial infections and mycoses ,urologic and male genital diseases ,medicine.disease ,female genital diseases and pregnancy complications ,Anti-Infective Agents ,Upper tract ,Urinary Tract Infections ,medicine ,Humans ,Female ,Significant risk ,Pregnancy Complications, Infectious ,business ,Asymptomatic bacteriuria - Abstract
Urinary tract infections are common complications of pregnancy; upper tract infections in particular may lead to significant morbidity for both the mother and fetus. Bacteriuria is a significant risk factor for developing pyelonephritis in pregnant women. Therefore, proper screening and treatment of bacteriuria during pregnancy is necessary to prevent complications. All women should be screened for bacteriuria in the first trimester, and women with a history of recurrent urinary tract infections or anomalies should have repeat bacteriuria screening throughout pregnancy. Treatment of bacteriuria should include 3-day therapy with appropriate antimicrobials, and women should be followed closely after treatment because recurrence may occur in up to one third of patients.
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- 2007
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17. Catastrophizing and Pain-Contingent Rest Predict Patient Adjustment in Men With Chronic Prostatitis/Chronic Pelvic Pain Syndrome
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Mark S. Litwin, Dean A. Tripp, Richard B. Alexander, J. Curtis Nickel, Leroy M. Nyberg, Mary McNaughton-Collins, Michel A. Pontari, Yanlin Wang, Michael P. O'Leary, Jackson E. Fowler, John W. Kusek, Anthony J. Schaeffer, and J. Richard Landis
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Adult ,Male ,Biopsychosocial model ,Canada ,medicine.medical_specialty ,Rest ,Prostatitis ,Learned helplessness ,Anger ,Pelvic Pain ,Cohort Studies ,Disability Evaluation ,Social support ,Chronic prostatitis/chronic pelvic pain syndrome ,Surveys and Questionnaires ,Adaptation, Psychological ,medicine ,Humans ,Depression (differential diagnoses) ,Depressive Disorder ,Physician-Patient Relations ,business.industry ,Chronic pain ,Social Support ,Middle Aged ,Urination Disorders ,medicine.disease ,United States ,Anesthesiology and Pain Medicine ,Neurology ,Chronic Disease ,Quality of Life ,Physical therapy ,Pain catastrophizing ,Neurology (clinical) ,business ,Stress, Psychological - Abstract
Cognitive/behavioral and environmental variables are significant predictors of patient adjustment in chronic pain. Using a biopsychosocial template and selecting several pain-relevant constructs from physical, cognitive/behavioral, and environmental predictors, outcomes of pain and disability in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) were explored. Men (n = 253) from a North American multi-institutional NIH-funded Chronic Prostatitis Cohort Study in 6 US and 1 Canadian centers participated in a survey examining pain and disability. Measures included demographics, urinary symptoms, depression, pain, disability, catastrophizing, control over pain, pain-contingent rest, social support, and solicitous responses from a significant other. Regressions showed that urinary symptoms (beta = .20), depression (beta = .24), and helplessness catastrophizing (beta = .29) predicted overall pain. Further, affective pain was predicted by depression (beta = .39) and helplessness catastrophizing (beta = .44), whereas sensory pain was predicted by urinary symptoms (beta = .25) and helplessness catastrophizing (beta = .37). With regard to disability, urinary symptoms (beta = .17), pain (beta = .21), and pain-contingent rest (beta = .33) were the predictors. These results suggest cognitive/behavioral variables (ie, catastrophizing, pain-contingent rest) may have significant impact on patient adjustment in CP/CPPS. Findings support the need for greater research of such pain-related variables in CP/CPPS.This article explores predictors of patient adjustment in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). Cognitive/behavioral variables of catastrophizing and pain-contingent rest respectively predicted greater pain and disability. Catastrophic helplessness was a prominent pain predictor. These findings inform clinicians and researchers on several new variables in CP/CPPS outcomes and suggest future research.
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- 2006
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18. Prostate-specific antigen test in diagnostic evaluation of chronic prostatitis/chronic pelvic pain syndrome
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Anthony J. Schaeffer, Stephen D. Mikolajczyk, Kathleen J. Propert, Robert B. Nadler, Jill S. Knauss, Richard B. Alexander, Jackson E. Fowler, J. Richard Landis, and Mary McNaughton Collins
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Gynecology ,Nephrology ,medicine.medical_specialty ,business.industry ,Urology ,Pelvic pain ,Prostatitis ,urologic and male genital diseases ,medicine.disease ,Prostate-specific antigen ,Prostate cancer ,Chronic prostatitis/chronic pelvic pain syndrome ,Antigen ,Internal medicine ,medicine ,medicine.symptom ,business ,Cohort study - Abstract
Objectives To determine whether prostate-specific antigen (PSA), the percent free PSA, or free PSA isoforms may be used as diagnostic markers for chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS; National Institutes of Health category IIIa and IIIb). Methods We evaluated 421 patients enrolled in the Chronic Prostatitis Cohort Study and 112 age-matched controls. Subjects were stratified by the number of white blood cells (WBCs) in their expressed prostatic secretions and pain as determined by the National Institutes of Health Chronic Prostatitis Symptom Index. Results Total PSA, free PSA, and [−2]proPSA ([−2]pPSA) were significantly elevated in those with CP/CPPS compared with controls (mean PSA 1.97 ng/mL versus 1.72 ng/mL, P = 0.03; mean free PSA 0.76 ng/mL versus 0.70 ng/mL, P = 0.01; and [−2]pPSA 2.38 ng/mL versus 1.80 ng/mL, P = 0.04). The percent free PSA was not significantly different between the patients and controls. For those with CP/CPPS, the percent free PSA was significantly lower as the WBC count rose in the expressed prostatic secretions (0 WBCs = 43.29 versus more than 25 WBCs = 26.52; P Conclusions Men with elevated PSA values and CP/CPPS should be treated as one would any other patient screened for prostate cancer with an elevated PSA level. Although PSA, free PSA, and [−2]pPSA were slightly elevated in men with CP/CPPS, the low sensitivity and specificity do not warrant using them as biomarkers for CP/CPPS.
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- 2006
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19. NIDDK-sponsored Chronic Prostatitis Collaborative Research Network (CPCRN) 5-year data and treatment guidelines for bacterial prostatitis
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Anthony J. Schaeffer
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Male ,Microbiology (medical) ,medicine.medical_specialty ,Prostatitis ,Humans ,Medicine ,Pharmacology (medical) ,Cooperative Behavior ,Intensive care medicine ,Randomized Controlled Trials as Topic ,business.industry ,Research ,Pelvic pain ,Case-control study ,Bacterial Infections ,General Medicine ,Guideline ,medicine.disease ,United States ,Clinical trial ,Infectious Diseases ,Chronic bacterial prostatitis ,National Institutes of Health (U.S.) ,Chronic Disease ,Cohort ,Physical therapy ,medicine.symptom ,business ,Cohort study - Abstract
Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is a disabling condition that is poorly understood. The National Institutes of Diabetes and Digestive and Kidney Diseases-sponsored Collaborative Research Network has developed a symptom index, formed a cohort study, a case control study, a full-scale randomised clinical trial, a resource utilisation study and clinical trials, as well as basic research studies, in an effort to better understand and manage patients with this condition. Cohort, case control and resource utilisation studies have confirmed the substantial impact of CP/CPPS. Clinical trials in basic research suggest that anti-inflammatory therapy and alpha-blocker therapy may be effective. The minority of patients with acute or chronic bacterial prostatitis continues to respond favourably to oral fluoroquinolone therapy.
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- 2004
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20. Acute and chronic prostatitis
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Vi N. Hua and Anthony J. Schaeffer
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Male ,medicine.medical_specialty ,Pathology ,Prostatitis ,Pelvic Pain ,Asymptomatic ,Gastroenterology ,Prostate cancer ,Internal medicine ,medicine ,Humans ,Disease process ,business.industry ,Pelvic pain ,Acute prostatitis ,General Medicine ,medicine.disease ,United States ,Pathophysiology ,National Institutes of Health (U.S.) ,Acute Disease ,Chronic Disease ,Etiology ,medicine.symptom ,business - Abstract
In summary, prostatitis is a complex syndrome that spans a spectrum from acute prostatitis with a straightforward presentation to CP-CPPS with a complex array of symptoms. The identification of prostatic or pelvic pain becomes a requirement for the diagnosis of CP-CPPS. The NIH system of prostatitis categorization is a refinement of the traditional classification of prostatitis by Drach et al, which was based on the localization test of Meares and Stamey. The NIH categorization system allows for a framework to define the disease process, and the NIH-CPSI was created to quantify the symptoms of chronic prostatitis. Integral to the classification of prostatitis is the presence or absence of inflammation, determined by looking for leukocytes in the EPS, seminal fluid, and VB3 specimens. In addition, the role of bacteria as a cause in category III prostatitis continues to be debated. Future research into using inflammatory markers (eg, tumor necrosis factor-alpha, interleukin-2) and using PCR to identify the presence of bacteria may further refine the pathophysiology of prostatitis. The mainstream treatment of chronic prostatitis involves antimicrobials, non-steroidal anti-inflammatory medications, and alpha-blockers. The potential role of asymptomatic category IV chronic prostatitis in the etiology of prostate cancer may be delineated further with future research.
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- 2004
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21. Claims-based analysis of male infertility: a cautious step in the right direction
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Anthony J. Schaeffer and James M. Hotaling
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Male ,Infertility ,Gynecology ,medicine.medical_specialty ,030219 obstetrics & reproductive medicine ,business.industry ,Alternative medicine ,MEDLINE ,Obstetrics and Gynecology ,medicine.disease ,Male infertility ,03 medical and health sciences ,Reproductive Health ,0302 clinical medicine ,Chronic disease ,Reproductive Medicine ,030220 oncology & carcinogenesis ,Family medicine ,Chronic Disease ,medicine ,Humans ,Men's Health ,business ,Infertility, Male ,Reproductive health - Published
- 2016
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22. Managing complicated urinary tract infections
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Anthony J. Schaeffer and Jonathan N. Rubenstein
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Microbiology (medical) ,Pregnancy ,medicine.medical_specialty ,Urinary bladder ,business.industry ,Urinary system ,PERINEPHRIC ABSCESS ,urologic and male genital diseases ,bacterial infections and mycoses ,medicine.disease ,Antimicrobial ,Sepsis ,Infectious Diseases ,medicine.anatomical_structure ,Emphysematous pyelonephritis ,Bacteremia ,medicine ,Intensive care medicine ,business - Abstract
Patients with complicated UTIs are a diverse group. These patients have upper UTIs and structural or functional abnormalities that reduce the efficacy of antimicrobial therapy. They are at increased risk for morbidity such as bacteremia and sepsis, perinephric abscess, renal deterioration, and emphysematous pyelonephritis. Appropriate urinary tract imaging, antimicrobials, medical and surgical therapies, and follow-up are required to avoid potentially devastating outcomes.
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- 2003
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23. Summary Consensus Statement: Diagnosis and Management of Chronic Prostatitis/Chronic Pelvic Pain Syndrome
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Werner W. Hochreiter, Bernard Lobel, Kurt G. Naber, Anthony J. Schaeffer, Truls E. Bjerklund Johansen, John N. Krieger, Carol Hart, J. Curtis Nickel, George A. Barbalias, Henri Botto, Peter Tenke, Jeannette M. Potts, and Wolfgang Weidner
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medicine.medical_specialty ,Chronic prostatitis/chronic pelvic pain syndrome ,business.industry ,Statement (logic) ,Urology ,Internal medicine ,medicine ,Physical therapy ,medicine.disease ,business - Published
- 2003
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24. Epidemiology and Demographics of Prostatitis
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Anthony J. Schaeffer
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Pelvic pain syndrome ,medicine.medical_specialty ,Longitudinal study ,Demographics ,business.industry ,Urology ,Incidence (epidemiology) ,Prostatitis ,medicine.disease ,Demographic analysis ,Internal medicine ,Epidemiology ,Physical therapy ,medicine ,business ,Cohort study - Abstract
This paper reviews the US National Institutes of Health (NIH) classification system for prostatitis and summarizes North American data on the incidence and prevalence of NIH category III chronic prostatitis/chronic pelvic pain syndrome, focusing upon a baseline demographic analysis of the US Chronic Prostatitis Cohort Study, a longitudinal study of 488 patients diagnosed with category III prostatitis.
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- 2003
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25. Overview summary statement
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Scott I. Zeitlin, Michel A. Pontari, Mark S. Litwin, Anthony J. Schaeffer, Carol Hart, J. Curtis Nickel, Jackson E. Fowler, Daniel A. Shoskes, Robert B. Nadler, Nand S. Datta, and John N. Krieger
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medicine.medical_specialty ,medicine.diagnostic_test ,Urinalysis ,Statement (logic) ,business.industry ,Urology ,Pelvic pain ,Alternative medicine ,MEDLINE ,Prostatitis ,Physical examination ,Evidence-based medicine ,medicine.disease ,Family medicine ,medicine ,Physical therapy ,medicine.symptom ,business - Abstract
Members of the Chronic Prostatitis Collaborative Research Network (CPCRN) met in a 1-day symposium to review recent findings and to debate unanswered issues in the diagnosis and management of chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). The meeting was focused on producing an overview summary statement that would, as nearly as possible, represent the consensus views of the attendees. As discussed below, the participants agreed that a history, physical examination, and urinalysis/urine culture are mandatory for the evaluation of all patients presenting with CP/CPPS, with other assessments categorized as recommended or optional, depending on the history and physical findings. Observations and suggestions regarding first- and second-line therapies are also offered, with the recognition that randomized, placebo-controlled trials to guide selection of therapies for chronic nonbacterial prostatitis are currently lacking.
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- 2002
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26. New concepts in the pathogenesis of urinary tract infections
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Anthony J. Schaeffer
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Urology ,Urinary system ,Cell ,Urine ,urologic and male genital diseases ,medicine.disease_cause ,Bacterial Adhesion ,Microbiology ,Pathogenesis ,Escherichia coli ,medicine ,Humans ,biology ,Hydrogen-Ion Concentration ,biology.organism_classification ,Enterobacteriaceae ,Epithelium ,Random Amplified Polymorphic DNA Technique ,medicine.anatomical_structure ,Cell culture ,Urinary Tract Infections ,Vagina ,Immunology ,Female ,Bacteria - Abstract
Random amplified polymorphic DNA fingerprinting was used to distinguish among Escherichia coli bacterial strains creating urinary tract infections (UTIs) in women. Bacteria bound more avidly to cells from postmenopausal donors with history of UTIs (PK) compared with cells from women without history of UTIs (AO). Nonpiliated bacterial strains did not adhere to the cell lines. Increasing S-IgA concentrations has no effect on AO cell bacterial binding, whereas bacterial adhesion to PK cell epithelium increased with increasing S-IgA concentration.
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- 2002
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27. Urinary tract infection in adults: research priorities and strategies
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Thomas M. Hooton, Anthony J. Schaeffer, John N. Krieger, Lindsay E. Nicolle, James R. Johnson, Stephen T. Chambers, E. Stamm, John W. Warren, Allan R. Ronald, Vincent T. Andriole, and Kurt G. Naber
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Adult ,Male ,Microbiology (medical) ,medicine.medical_specialty ,business.industry ,Urinary system ,MEDLINE ,General Medicine ,Middle Aged ,bacterial infections and mycoses ,urologic and male genital diseases ,female genital diseases and pregnancy complications ,Infectious Diseases ,Clinical research ,Urinary Tract Infections ,Humans ,Medicine ,Female ,Pharmacology (medical) ,Limited evidence ,business ,Intensive care medicine ,Aged - Abstract
Waning interest in urinary tract infection (UTI) research has limited clinical advances during the past two decades. Although care has improved for some specific UTI syndromes, there is limited evidence for most of the decisions made each day in the management of these infections. Additional clinical research is necessary to improve UTI prevention and care strategies.
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- 2001
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28. Evaluation of the cytokines interleukin 8 and epithelial neutrophil activating peptide 78 as indicators of inflammation in prostatic secretions
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Wolfgang Weidner, Martin Ludwig, Alisa E. Koch, Anthony J. Schaeffer, Werner W. Hochreiter, Phillip L. Campbell, and Robert B. Nadler
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Adult ,Male ,Bodily Secretions ,Chemokine CXCL5 ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,Prostatic Hyperplasia ,Prostatitis ,Enzyme-Linked Immunosorbent Assay ,Inflammation ,Pelvic Pain ,Asymptomatic inflammatory prostatitis ,Prostate ,Internal medicine ,medicine ,Humans ,Interleukin 8 ,Aged ,business.industry ,Pelvic pain ,Interleukin-8 ,Bacterial Infections ,Middle Aged ,Hyperplasia ,medicine.disease ,medicine.anatomical_structure ,Endocrinology ,Cytokine ,Chronic Disease ,medicine.symptom ,business ,Chemokines, CXC - Abstract
Objectives. Chronic prostatitis/chronic pelvic pain syndrome (CPPS) is a disorder characterized by pelvic pain and varying degrees of inflammation exhibited in expressed prostatic secretions (EPS). To provide objective parameters of inflammation, we measured the cytokines interleukin 8 (IL-8) and epithelial neutrophil activating peptide 78 (ENA-78) in EPS of healthy men, men with benign prostatic hyperplasia (BPH), men with bacterial prostatitis (BP), and men with chronic prostatitis/CPPS. Methods. Enzyme-linked immunosorbent assays of the EPS for IL-8 and ENA-78 were done in 63 men: control (n = 9), BPH (n = 6), BP (n = 3), inflammatory CPPS (National Institutes of Health [NIH] category IIIa) (n = 17), noninflammatory CPPS (NIH category IIIb) (n = 17), and asymptomatic inflammatory prostatitis (NIH category IV) (n = 11). Results. IL-8 was detectable in all patients, and ENA-78 was detectable in all except 2 patients (threshold of detection 10 pg/mL for IL-8, 15 pg/mL for ENA-78). Mean levels of IL-8 [ENA-78] were similar in control (3010 pg/mL [423 pg/mL]), BPH (3341 pg/mL [98 pg/mL]), and IIIb (2751 pg/mL [335 pg/mL]) groups. Both cytokine levels were higher in BP (11,175 pg/mL [13,761 pg/mL]), IIIa (10,418 pg/mL [2240 pg/mL]), and IV (8571 pg/mL [1865 pg/mL]) groups. A statistically significant difference between the control group versus BP, IIIa, and IV (P Conclusions. IL-8 and ENA-78 are frequently elevated in the EPS of men with BP, CPPS IIIa, and asymptomatic inflammatory prostatitis category IV. These cytokines are direct mediators of leukocyte accumulation and activation at inflammatory sites and may be responsible, in part, for the presence of inflammatory reaction in the prostate.
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- 2000
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29. Angiosarcoma of the bladder: a review
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Jason D. Engel, Timothy M. Kuzel, Anthony J. Schaeffer, Monica C Moceanu, and Michael G. Oefelein
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Male ,medicine.medical_specialty ,Urinary bladder ,business.industry ,Urology ,medicine.medical_treatment ,Hemangiosarcoma ,Multimodal therapy ,Multimodality Therapy ,Middle Aged ,medicine.disease ,Surgery ,Cystectomy ,medicine.anatomical_structure ,Urinary Bladder Neoplasms ,medicine ,Humans ,Angiosarcoma ,External beam radiotherapy ,Sarcoma ,Radical surgery ,business - Abstract
Objectives. To present a new case of angiosarcoma of the bladder, review 9 other previously reported cases, and discuss the unique features of our case with regard to presentation, treatment, and clinical course of patients with this exceedingly rare tumor. The utility of multimodality therapy is emphasized. Methods. We report the latest case of angiosarcoma of the bladder. We also reviewed the world literature (MEDLINE) and discovered 9 previously reported cases of angiosarcoma of the bladder. Presentation, treatment, and clinical course were analyzed. Results. Of the 10 cases, 2 were considered to have arisen from a preexisting bladder hemangioma. Two patients had a history of prior gynecologic malignancies treated with external beam radiotherapy, with subsequent sarcoma formation within the past treatment field. Two other patients presented with skin lesions that predated the discovery of bladder lesions. Only 4 patients presented with primary bladder lesions and no preexisting disease or previous carcinogenic exposure (except for tobacco use). Hematuria was a universal presentation, and treatment was widely variant. Of the 10 patients, 8 died during a period of follow-up of 23 months. Five patients died of tumor-related causes. Mean survival of these 5 was 10.6 months. The 2 most recent patients (including ours) were alive and tumor free at 8 and 32 months, respectively. Both of these patients underwent multimodality oncologic approaches as part of their treatment regimen. Conclusions. Angiosarcoma of the bladder is exceedingly rare and usually fatal. Prognosis is poorer than that of angiosarcomas in more traditional sites. Regional lymph nodes are typically spared, but local recurrence with eventual distant metastasis is the rule. Optimal therapy has not been determined, but it most likely should involve a multimodal approach combining radical surgery with chemotherapy and radiotherapy.
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- 1998
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30. Associations among cystoscopic findings and symptoms and physical examination findings in women enrolled in the interstitial cystitis data base (ICDB) study
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Anthony J. Schaeffer, Edward M. Messing, Leroy M. Nyberg, Diane Pauk, Mary Nieweglowski, Yvonne L. Matthews Cook, J. Richard Landis, and Laura J. Simon
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medicine.medical_specialty ,Urinary urgency ,Databases, Factual ,Urology ,Cystitis, Interstitial ,Pain ,Physical examination ,Bladder capacity ,Disease ,Internal medicine ,medicine ,Humans ,Severe pain ,Physical Examination ,medicine.diagnostic_test ,business.industry ,Interstitial cystitis ,Cystoscopy ,medicine.disease ,Surgery ,Quality of Life ,Examination Under Anesthesia ,Female ,medicine.symptom ,business - Abstract
To determine if specific symptoms or physical findings were associated with findings on cystoscopic examination under anesthesia in patients participating in the Interstitial Cystitis Data Base (ICDB) Study.Subjects entering the ICDB Study completed symptom questionnaires and underwent physical examinations. Additionally, at the discretion of study investigators, 150 women underwent cystoscopy under anesthesia following a specific protocol of bladder distension at 70 to 80 cm irrigating fluid height and reinspection after capacity was reached and the irrigant drained.Statistically significant (p0.01) associations between bodily pain and urinary urgency with the presence of a Hunner's patch, and urinary frequency and urgency with a reduced bladder capacity under anesthesia were seen. Neither the findings of bloody irrigating fluid nor glomerulations were strongly associated with any symptom, and except for an association of urethral tenderness with Hunner's patch, no physical examination finding was associated with any cystoscopic findings.The strong associations of Hunner's patch and reduced bladder capacity under anesthesia with severe pain and urinary urgency, and urgency and frequency, respectively, indicate not only the importance of these findings in diagnosing interstitial cystitis, but also their potential utility in subclassifying this disease.
- Published
- 1997
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31. Do infectious agents cause interstitial cystitis?
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Anthony J. Schaeffer and James L. Duncan
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Fastidious organism ,medicine.medical_specialty ,Microbiological culture ,Urology ,Microorganism ,Cystitis, Interstitial ,Polymerase Chain Reaction ,Microbiology ,law.invention ,law ,medicine ,Humans ,Gene ,Polymerase chain reaction ,Urinary bladder ,Bacteria ,biology ,business.industry ,Interstitial cystitis ,biology.organism_classification ,medicine.disease ,medicine.anatomical_structure ,DNA, Viral ,Immunology ,RNA ,business - Abstract
The possibility that infectious agents play a role in the etiology of interstitial cystitis (IC) has been investigated for a number of years. Early studies were directed toward attempts to cultivate bacteria and fungi on routine culture media and microscopic examinations of urine or bladder tissue specimens for the presence of microorganisms. In more recent years, this approach has been expanded to include sophisticated culture techniques to search for the presence of fastidious and unusual organisms that would not be detected by routine culture methods. Similarly, the presence of viruses has been sought by incubating specimens from interstitial cystitis patients in mammalian cell cultures to detect cytopathic effects. None of these approaches has provided convincing evidence that micro-organisms or viruses are associated with IC. The latest attempts to search for the presence of bacteria have made use of the polymerase chain reaction (PCR) to amplify bacterial 16S rRNA genes that would be present if bacteria were present in bladder tissue or urine of IC patients. This approach allows bacteria to be detected and even identified without culture. However, the results from the great majority of bladder biopsy samples analyzed by these molecular techniques have been negative. PCR strategies have also been used to search for the presence of certain viruses in IC specimens, again without success. At this time, the results from laboratory culture, light and electron microscopy, and various molecular strategies to detect micro-organisms and viruses in IC specimens all argue against an infectious etiology for IC.
- Published
- 1997
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32. Efficacy and tolerability of norfloxacin vs. ciprofloxacin in complicated urinary tract infection
- Author
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Rodney U. Anderson and Anthony J. Schaeffer
- Subjects
Male ,medicine.medical_specialty ,medicine.drug_class ,Urology ,medicine.medical_treatment ,Urinary system ,Antibiotics ,Urine ,Gastroenterology ,Drug Administration Schedule ,Ciprofloxacin ,Internal medicine ,Humans ,Medicine ,Prospective Studies ,Escherichia coli Infections ,Norfloxacin ,Chemotherapy ,business.industry ,Middle Aged ,biochemical phenomena, metabolism, and nutrition ,bacterial infections and mycoses ,Discontinuation ,Surgery ,Tolerability ,Urinary Tract Infections ,Female ,business ,medicine.drug - Abstract
This prospective, open, randomized clinical study compared the efficacy and tolerability of norfloxacin and ciprofloxacin in adult patients with complicated urinary tract infection, defined as infection in the presence of an underlying anatomic or functional abnormality of the urinary tract. Seventy-two patients were randomized, 37 received norfloxacin (400 mg orally twice daily for 10-21 days) and 35 received ciprofloxacin (500 mg orally every 12 hours for 14-21 days). Patients were clinically assessed, and urine cultures were obtained following two to four days of therapy, and five to nine days and four to six weeks after discontinuation of therapy. Seventy-two percent of the norfloxacin group and 79 percent of the ciprofloxacin group were considered cured. This difference was not significant. One failure of norfloxacin therapy was associated with the emergence of resistant Pseudomonas aeruginosa. Following norfloxacin therapy, in 2 patients superinfections developed with resistant organisms (Staphylococcus epidermidis [1] and Pseudomonas maltophilia [1]). Twelve patients, 6 in each group, experienced adverse reactions, which were considered related to the study drug therapy in only four instances. Our results indicated comparable efficacy and tolerability of norfloxacin and ciprofloxacin in the treatment of complicated urinary tract infection in adults.
- Published
- 1992
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33. Diagnosis and treatment of prostatic infections
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Anthony J. Schaeffer
- Subjects
Male ,medicine.medical_specialty ,business.industry ,Urology ,Prostatitis ,Bacterial Infections ,Antimicrobial ,medicine.disease ,Chronic bacterial prostatitis ,medicine.anatomical_structure ,Prostate ,Internal medicine ,Etiology ,medicine ,Humans ,business ,Prostatic fluid - Abstract
The diagnosis and management of prostatitis and pelviperineal pain is a challenge to the clinician. Careful examination of the prostatic fluid and bacteriologic cultures to differentiate bacterial from nonbacterial prostatitis are essential. Antimicrobial therapy is effective in the majority of men with acute or chronic bacterial prostatitis. Nonbacterial prostatitis is the most common type of prostatitis. The etiology is unknown and treatment with repeated antimicrobial therapy is ineffective. Alpha-blocking agents may relieve symptomatology. Pelviperineal pain may be of prostatic origin but other nonprostatic causes should be sought.
- Published
- 1990
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34. Use of Antimicrobials for Patients Undergoing Prostatectomy
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Darlys R. Hofer and Anthony J. Schaeffer
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medicine.medical_specialty ,business.industry ,Prostatectomy ,medicine.drug_class ,Urology ,Urinary system ,medicine.medical_treatment ,Urethral Catheters ,Antibiotics ,Bacteriuria ,Perioperative ,medicine.disease ,Antimicrobial ,Surgery ,medicine ,Risk factor ,business - Abstract
SUMMARY Our suggestions for the use of antimicrobials in patients undergoing prostatectomy are summarized in Table 2. The use of antimicrobial prophyhxis perioperatively for patients without bacteriuria remains controversial. Some authors recommend 5 , 15 , 16 , 24 and others do not recommend 9 , 18 , 20 , 32 antimicrobial prophylaxis. We do not recommend perioperative prophylaxis for low-risk patients without previous urinary tract infections or an indwelling urethral catheter. We do recommend that patients with risk factors that increase the rate or consequence of urinary tract infection, those with previous urinary tract infections, or those with indwelling urethral catheters, even though the urine shows no growth, receive perioperative antimicrobial prophylaxis. Antimicrobial therapy is mandatory for patients with preoperative bacteriuria. The drug must be selected according to the susceptibility of the pathogen, and the duration of treatment must be guided by the severity of the infection. At the time of catheter removal, antimicrobial prophylaxis is probably beneficial, and antimicrobial therapy is essential if bacteriuria is present prior to catheter removal. All patients must have cultures after catheter removal and antimicrobial therapy if a urinary tract infection is identified.
- Published
- 1990
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35. Norfloxacin Use in Urinary Tract Infection by Urologists and Infectious Disease Specialists
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Ellie J.C. Goldstein, Rodney Snow, Anthony J. Schaeffer, Mark J. Kunkel, Lloyd Harrison, Paul B. Iannini, Steven Berman, Ralph Landes, and Glenn Wells
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Adult ,Male ,medicine.medical_specialty ,Klebsiella pneumoniae ,Urology ,Urinary system ,Administration, Oral ,Drug resistance ,medicine.disease_cause ,Internal medicine ,medicine ,Humans ,Norfloxacin ,Aged ,biology ,Pseudomonas aeruginosa ,business.industry ,Drug Resistance, Microbial ,Enterobacter ,Middle Aged ,biology.organism_classification ,Tolerability ,Infectious disease (medical specialty) ,Urinary Tract Infections ,Female ,business ,medicine.drug - Abstract
One hundred thirty-one patients of urologists and infectious disease specialists were entered into an open trial of norfloxacin in the therapy of urinary tract infections (UTIs). All patients were evaluable for tolerability and 98 were evaluable for efficacy. The patient population in this study was older (mean age 53 years) and had more underlying urogenital disorders (30%) or recent invasive urologic procedures (20%) than the typical patient population with UTIs. Over 50% of the patients had infections due to organisms other than Escherichia coli, including Pseudomonas aeruginosa (14), Klebsiella pneumoniae (5), Enterobacter spp (3) and Group D streptococcus (6). Clinical and bacteriologic cure rates were 90 and 91%, respectively. Side effects occurred in 5 patients and were generally mild.
- Published
- 1990
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36. Review of Norfloxacin in Complicated and Recurrent Urinary Tract Infections
- Author
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Anthony J. Schaeffer
- Subjects
medicine.medical_specialty ,Pseudomonas aeruginosa ,Urethral stricture ,business.industry ,Urology ,Urinary system ,Retroperitoneal fibrosis ,medicine.disease ,medicine.disease_cause ,Gastroenterology ,Antibiotic resistance ,Chronic bacterial prostatitis ,Internal medicine ,medicine ,Prostatism ,medicine.symptom ,business ,Norfloxacin ,medicine.drug - Abstract
In seven studies of complicated and recurrent urinary tract infections, 285 patients were treated with norfloxacin 400 mg b.i.d. for 7-90 days. The majority of the patients were men, and many were elderly. Underlying diseases included nephrolithiasis, pyelonephritis, prostatism, bacterial prostatitis, prostate cancer, retroperitoneal fibrosis, quadriplegia/paraplegia, neurogenic bladder, and urethral stricture. Many of the infections were due to Pseudomonas aeruginosa or other multiply resistant strains. More than 95% of the pretreatment bacterial isolates were susceptible to norfloxacin. The bacteriologic cure rate ranged from 67 to 100%. Of 45 patients with chronic bacterial prostatitis, 40 (89%) were cured. Few failures of treatment were due to the emergence of bacterial resistance. Of 29 recurrent infections, 6 (20%) were caused by resistant bacteria. Both clinical and laboratory adverse reactions were infrequent and minor, and rarely required discontinuation of therapy. Norfloxacin appears to be an effective drug with an excellent safety profile for the treatment of complicated and recurrent UTIs.
- Published
- 1990
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37. Contemporary Antibiotic Management for Urologic Procedures and Infections
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Sarah C. Flury and Anthony J. Schaeffer
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medicine.medical_specialty ,medicine.drug_class ,business.industry ,Urology ,Antibiotics ,MEDLINE ,Limiting ,Urologic Surgical Procedure ,Surgery ,Clinical Practice ,Broad spectrum ,Infectious disease (medical specialty) ,medicine ,business ,Intensive care medicine ,Patient factors - Abstract
The challenge to tailor antibiotic choices to the individual patient as well as the specific procedure is ever increasing in the modern era of multi-drugresistant organisms and increasingly complex patients and surgeries. The urologist faces decisions every day in both clinical practice and the operating room setting on how to effectively utilize antibiotics while taking into account individual patient factors as well as procedural factors. The goals of minimizing the incidence of infections and limiting morbidity from infections are shared by clinicians across the specialties ranging from Cardiology, to Orthopedics, to Infectious Disease, to Obstetrics, to Pediatrics, to Internal Medicine. Collaboration on the part of the physicians is key to managing individual patients with infections that require treatment and in procedures that necessitate prophylaxis. Judicious use of antibiotics in the appropriate doses for the indicated duration helps to limit the development of resistant organisms and to maintain the efficacy of broad spectrum antibiotics for the continued treatment of patients in the future. In this issue of Urologic Clinics, we focus on antibiotic management in cases specific to the
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- 2015
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38. Association of BMI and pediatric urologic postoperative events: Results from pediatric NSQIP
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Erin R. McNamara, Caleb P. Nelson, Tanya Logvinenko, Michael P. Kurtz, and Anthony J. Schaeffer
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Male ,Urologic Diseases ,medicine.medical_specialty ,Adolescent ,Urology ,Population ,Overweight ,Risk Assessment ,Urologic Surgical Procedure ,Body Mass Index ,Postoperative Complications ,Risk Factors ,Internal medicine ,Odds Ratio ,medicine ,Humans ,Obesity ,Risk factor ,Child ,education ,Retrospective Studies ,education.field_of_study ,business.industry ,Perioperative ,Odds ratio ,medicine.disease ,United States ,Surgery ,Child, Preschool ,Pediatrics, Perinatology and Child Health ,Urologic Surgical Procedures ,Female ,Urologic disease ,medicine.symptom ,business ,Body mass index ,Follow-Up Studies - Abstract
Summary Background Elevated body mass index (BMI) is a well-known risk factor for perioperative complications in adults, but has not been investigated in children undergoing urologic procedures. Given the low rate of complications associated with urologic surgery, a large sample is required for their characterization, but BMI is frequently not available in administrative databases. Here we report results from the first nationally based, prospectively assembled cohort analyzed with respect to the association of BMI with 30-day postoperative events for pediatric urologic procedures. Objective To determine the association of elevated BMI with overall 30-day postoperative events and wound complications in a large national sample of children undergoing urologic procedures. Study design We queried the 2012 Pediatric National Surgical Quality Improvement Program database (NSQIP), defining obesity as a BMI above the 95th percentile and overweight above the 85th percentile, per CDC definitions. We used BMI Results 2871 patients aged 2–18 years were analyzed. Of these, 420 (14.6%) were overweight and 440 (15.3%) were obese. A summary of 30-day events and complications is shown in the structured abstract table. On multivariate analysis adjusting for age, gender, class of procedure, and comorbidity, BMI remained a significant risk factor for 30-day events when comparing BMI ≥85th percentile to BMI 85th percentile on multivariate analysis. Discussion Overweight/obese status increased the odds of overall complications by 36%, and of wound complications by 140%. In adults there is a known profound effect of body composition on wound complications, but in children this association is less clear, and has not been studied in the pediatric urologic literature on a large scale. The mechanisms linking BMI to pediatric postoperative complications are unclear, but cytokine mechanisms or changes in the response to inflammation have been postulated. Limitations of this study include restriction to those urologic procedures included in ACS-NSQIPP and sorted into broad general categories. We did not control for secondary procedures. BMI/BMI percentile may not be appropriate measures of body composition in patients with atypical body habitus or proportions (e.g. myelomeningocele). Conclusion BMI in the pediatric NSQIP urologic population was found to be associated with overall complication after adjustment for case type and preoperative comorbidity in a large national sample assembled for assessment of perioperative outcomes. An exploratory analysis uncovered more than two-fold increase in odds of wound complication in obese/overweight patients compared with a normal weight referent population. These results may be useful in preoperative counseling patients regarding perioperative risk. Table . Association of BMI with 30-day postoperative events in children after urologic procedures. BMI BMI ≥85th percentile Full cohort p a Any complication b 82 (4.1%) 58 (6.7%) 140 (4.9%) 0.003 Urinary tract infection 38 (1.9%) 25 (2.9%) 63 (2.2%) 0.10 Postoperative bleeding 26 (1.3%) 15 (1.7%) 41 (1.4%) 0.35 Any wound complication 21 (1.0%) 23 (2.7%) 44 (1.5%) 0.002 Superficial surgical site infection 9 (0.5%) 13 (1.5%) 22 (0.8%) 0.005 Deep surgical site infection 3 (0.2%) 4 (0.5%) 7 (0.2%) 0.21 c Organ space infection 2 (0.1%) 5 (0.6%) 7 (0.2%) 0.02 c Dehiscence 9 (0.5%) 3 (0.4%) 12 (0.4%) 0.71 Reoperation within 30 days 27 (1.3%) 17 (2.0%) 44 (1.5%) 0.21 Readmission within 30 days 78 (3.9%) 46 (5.3%) 124 (4.3%) 0.08 Any 30-day event 150 (7.5%) 92 (10.7%) 242 (8.4%) 0.004 Odds of any 30-day event (unadjusted) – 1.49 (1.13–1.95) – 0.004 Odds of any 30-day event (multivariable) – 1.36 (1.03–1.82) – 0.034 Odds of wound complication (unadjusted) – 2.60 (1.34–4.73) – 0.002 Odds of wound complication (multivariable) – 2.36 (1.28–4.35) – 0.006 a Obtained using logistic regression. b In addition to complications shown, there were no cases of acute kidney injury, embolic events, or neurologic events. c Obtained using two-tailed Fisher's exact test because of small cell count.
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- 2015
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39. Editorial Comment
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Anthony J. Schaeffer
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Urology - Published
- 2013
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40. Re: Alfuzosin and Symptoms of Chronic Prostatitis–Chronic Pelvic Pain Syndrome
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Anthony J. Schaeffer
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medicine.medical_specialty ,Chronic prostatitis/chronic pelvic pain syndrome ,business.industry ,Urology ,medicine ,medicine.disease ,business ,Alfuzosin ,medicine.drug - Published
- 2009
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41. Re: Dutasteride Reduces Prostatitis Symptoms Compared With Placebo in Men Enrolled in the REDUCE Study
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Anthony J. Schaeffer
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medicine.medical_specialty ,chemistry.chemical_compound ,chemistry ,business.industry ,Urology ,MEDLINE ,Medicine ,Prostatitis ,business ,Dutasteride ,Placebo ,medicine.disease - Published
- 2012
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42. Introduction
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Harry R. Jacobson, Richard Dean, Nicolaos E. Madias, Andrew Novick, Mani Menon, and Anthony J. Schaeffer
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Nephrology - Published
- 1994
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43. Editorial comment
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Anthony J. Schaeffer
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Urology - Published
- 1994
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44. Summary: Overview of Therapeutic Considerations
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Anthony J. Schaeffer
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medicine.medical_specialty ,business.industry ,Urology ,medicine ,Intensive care medicine ,business ,Elderly patient - Published
- 1991
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45. Introduction
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Anthony J. Schaeffer
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Urology - Published
- 1991
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46. Treatment of stage D bladder cancer with adjuvant doxorubicin hydrochloride and radiation
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Anthony J. Schaeffer, George J. Bulkley, Ramananda M. Shetty, John T. Grayhack, and John M. Merrill
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Male ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,Urinary Bladder ,Lymph node biopsy ,Radiation Dosage ,Drug Administration Schedule ,Cystectomy ,medicine ,Humans ,Neoplasm Invasiveness ,Neoplasm Metastasis ,Survival rate ,Aged ,Neoplasm Staging ,Clinical Trials as Topic ,Bladder cancer ,medicine.diagnostic_test ,business.industry ,Middle Aged ,Prognosis ,medicine.disease ,Transurethral biopsy ,Surgery ,Radiation therapy ,Regimen ,Urinary Bladder Neoplasms ,Doxorubicin ,Lymph Node Excision ,Every Three Weeks ,Female ,business - Abstract
pathologic Stage D bladder cancer was recognized in 16 patients by evaluation tissue obtained by radical cystectomy and pelvic lymphadenectomy (7), pelvic lymph node dissection (3) or biopsies (3), ileal conduit and pelvic lymph node biopsy (1), or transurethral biopsy of the bladder and prostate (2). Treatment of these patients with radiation preceded and followed by doxorubicin hydrochloride (Adriamycin) was initiated three to four weeks postoperatively. The treatment regimen consisted of the following: (1) doxorubicin 60 mg/M2 intravenously every three weeks for three cycles; (2) 5,000 rad external radiation to the whole pelvis in five to six weeks; and (3) doxorubicin for five cycles. The mean survival was twenty-three months. The survival rate was as follows: one year, 10 of 15 patients at risk; two years, 6 of 11; three years, 5 of 9; four years, 1 of 4; and five years, 0 of 2. Ten patients died six to thirty-six months (mean 13.6) postoperatively. In 6 of the patients significant obstruction of small bowel developed. These preliminary observations indicate encouraging therapeutic results with an acceptable morbidity for this regimen.
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- 1982
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47. The Office Laboratory
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Anthony J. Schaeffer
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business.industry ,Urology ,medicine ,Medical emergency ,medicine.disease ,business - Published
- 1980
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48. Pediatric Urinary Tract Infections
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Julia R. Spencer and Anthony J. Schaeffer
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Pediatrics ,medicine.medical_specialty ,business.industry ,Renal damage ,Urology ,Urinary system ,urologic and male genital diseases ,medicine.disease ,Vesicoureteral reflux ,Renal scarring ,Pathogenesis ,Urinary obstruction ,Bacterial colonization ,Medicine ,business - Abstract
Urinary tract infection is a frequent diagnosis in infants and children who are referred to a urologist. Infections in children are often benign, yet the potential for significant renal damage in this age group makes adequate urinary tract evaluation mandatory. Urinary obstruction, vesicoureteral reflux, periurethral bacterial colonization, and voiding dysfunction are important in the pathogenesis of pediatric infections. Adequate therapy requires detection and control of these conditions in order to prevent pyelonephritic renal scarring and its sequelae.
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- 1986
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49. Use of the CO2 Laser in Urology
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Anthony J. Schaeffer
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Urethral meatus ,medicine.medical_specialty ,Co2 laser ,Thermal injury ,business.industry ,Urology ,Thermal necrosis ,food and beverages ,virus diseases ,Laser therapy ,Energy absorption ,Medicine ,skin and connective tissue diseases ,business ,Surgical incision - Abstract
The CO2 laser emits coherent light in the far infrared region with an extremely short extinction length. Energy absorption at the impact site is very intense and results in a surgical incision characterized by a zone of vaporization surrounded by a narrow zone of thermal necrosis and sublethal thermal injury. Infected epithelium can be ablated precisely to a shallow depth so that the papillomavirus is killed and rapid healing can occur. The CO2 laser is the treatment of choice for condylomata acuminata that are extensive or recurrent, are within the urethral meatus, or occur during pregnancy, a period during which cytotoxic drugs are contraindicated. With this technique virtually all patients with condylomata acuminata can be cured rapidly with minimal morbidity, complications, or risk of recurrence.
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- 1986
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50. Urinary Tract Infections in Urology: A Urologist's View of Chronic Bacteriuria
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Anthony J. Schaeffer
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Microbiology (medical) ,medicine.medical_specialty ,business.industry ,Urinary system ,Urology ,Bacterial persistence ,Bacteriuria ,Urine ,Antimicrobial ,medicine.disease ,Resistant bacteria ,Infectious Diseases ,Sensitivity testing ,medicine ,Azotemia ,business - Abstract
Urine culture performed during and after antimicrobial therapy will differentiate unresolved urinary tract infections from recurrent infections. Recurrent infections with the same organism and at close intervals are frequently caused by a focus of bacterial persistence within the urinary tract, and infections with different organisms and/or at longer intervals are characteristic of reinfections with bacteria from outside the urinary tract. Unresolved infections are usually due to resistant bacteria and are treated by modification of therapy based on antimicrobial sensitivity testing. When unresolved bacteriuria is caused by organisms sensitive to the initial antimicrobial therapy, azotemia or a large bacterial mass density should be suspected. Recurrent infections at close intervals and/or with the same organism are usually caused by a bacterial focus in an acquired or congenital abnormality of the urinary tract such as infection stones, which must be removed to cure the recurrent infections. If the bacterial focus within the urinary tract cannot be removed, long-term low-dose antimicrobial prophylaxis can prevent the morbidity of recurrent infections. Reinfection requires careful bacteriologic monitoring and low-dose prophylactic, intermittent, or post-intercourse antimicrobial therapy.
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- 1987
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