Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Catherine R. Harris is active.

Publication


Featured researches published by Catherine R. Harris.


The Journal of Urology | 2011

Lymphadenectomy Improves Survival of Patients With Renal Cell Carcinoma and Nodal Metastases

Jared M. Whitson; Catherine R. Harris; Adam C. Reese; Maxwell V. Meng

PURPOSE In a population based cohort we determined whether an increase in the number of lymph nodes removed is associated with improved disease specific survival of patients with renal cell carcinoma treated with nephrectomy. MATERIALS AND METHODS Patients in the Surveillance, Epidemiology and End Results database with renal cell carcinoma and no evidence of distant metastases were identified. Those patients included in the study underwent radical or partial nephrectomy with lymphadenectomy. Cox regression analyses were performed to identify factors associated with disease specific survival including an interaction between lymph node status and the number of lymph nodes removed. RESULTS Between 1988 and 2006, 9,586 patients with renal cell carcinoma met the study inclusion criteria. Median followup was 3.5 years (range 1.4 to 6.8). Of the patients 2,382 (25%) died of renal cell carcinoma, including 1,646 (20%) with lymph node negative disease and 736 (58%) with lymph node positive disease. There was no effect on disease specific survival with increasing the extent of lymphadenectomy in patients with negative lymph nodes (HR 1.0, 95% CI 0.9-1.1, p = 0.93). However, patients with positive lymph nodes had increased disease specific survival with extent of lymphadenectomy (HR 0.8 per 10 lymph nodes removed, 95% CI 0.7-1.0, p = 0.04). An increase of 10 lymph nodes in a patient with 1 positive lymph node was associated with a 10% absolute increase in disease specific survival at 5 years (p = 0.004). CONCLUSIONS This study shows an association between increased lymph node yield and improved disease specific survival of patients with lymph node positive nonmetastatic renal cell carcinoma who underwent lymphadenectomy. Patients at high risk for nodal disease should be considered for regional or extended lymphadenectomy. Clinical variables to predict risk and validation of dissection templates are important areas for future research.


Cancer | 2012

The quantitative Gleason score improves prostate cancer risk assessment

Adam C. Reese; Janet E. Cowan; Jonathan S. Brajtbord; Catherine R. Harris; Peter R. Carroll; Matthew R. Cooperberg

In the current study, the authors propose the quantitative Gleason score (qGS), a modification of the current Gleason grading system for prostate cancer, based on the weighted average of Gleason patterns present in the pathology specimen. They hypothesize that the qGS can improve prostate cancer risk stratification and help prevent the overtreatment of patients with clinically indolent tumors.


BJUI | 2012

Population‐based comparative effectiveness of nephron‐sparing surgery vs ablation for small renal masses

Jared M. Whitson; Catherine R. Harris; Maxwell V. Meng

Study Type – Prognosis (cohort)


The Journal of Urology | 2013

Men with Low Preoperative Sexual Function May Benefit from Nerve Sparing Radical Prostatectomy

Catherine R. Harris; Sanoj Punnen; Peter R. Carroll

PURPOSE We determined the effect of nerve sparing radical prostatectomy on sexual and urinary function in men at various levels of pretreatment sexual function. MATERIALS AND METHODS Men in the CaPSURE™ (Cancer of the Prostate Strategic Urologic Research Endeavor) database who underwent radical prostatectomy and had baseline and 2-year posttreatment UCLA-PCI sexual function and urinary function scores were selected. Nerve sparing was categorized as bilateral, unilateral or none and the level of pretreatment sexual function was divided into quartiles. The cohort was divided into subgroups of nerve sparing technique and pretreatment sexual function. Differences between sexual function and urinary function among subgroups were determined. A test of interaction was performed between preoperative sexual function and degree of nerve sparing on postoperative sexual function and urinary function scores. RESULTS A total of 1,322 patients met the study inclusion criteria. Median patient age was 61 years (range 41 to 79). Bilateral, unilateral and no nerve sparing procedures were performed in 899, 200 and 223 men, respectively. The effects of nerve sparing on sexual function differed among the quartiles of preoperative sexual function (p <0.01). Nerve sparing did not have an effect on the sexual function of men in the lowest quartile of preoperative sexual function score (p = 0.15) but did have a significant beneficial effect on sexual function in the higher 3 quartiles (p = 0.04, p <0.01 and p <0.01, respectively). Alternatively, nerve sparing improved urinary function in men in the lowest quartile of baseline sexual function. CONCLUSIONS Nerve sparing radical prostatectomy results in better sexual function outcomes than no nerve sparing in most men except those with little baseline function. Urinary function was positively impacted in all men. Men who are suitable candidates for nerve preservation may benefit from nerve sparing surgery. Poorer baseline sexual function should not exclude these men from such surgery.


Urology | 2015

Trends, Utilization, and Immediate Perioperative Complications of Urethroplasty in the United States: Data From the National Inpatient Sample 2000-2010

Sarah D. Blaschko; Catherine R. Harris; Uwais B. Zaid; Tom Gaither; Carissa Chu; Amjad Alwaal; Jack W. McAninch; Charles E. McCulloch; Benjamin N. Breyer

OBJECTIVE To determine national urethroplasty trends based on type of surgery and patient and hospital characteristics. We hypothesized that the number of complex urethroplasty procedures performed has increased over time and may be associated with increased periprocedure complications. METHODS The National Inpatient Sample from years 2000 to 2010 was queried for patients with urethroplasty-associated International Classification of Diseases, Ninth Revision, Clinical Modification codes. We analyzed trends in urethroplasty procedures, patient demographics, comorbidities, and hospital characteristics. We evaluated the relationship between patient demographics and comorbid disease, length of hospital stay, hospital charges, and inpatient complications. RESULTS During the study period, an estimated 13,700 men (95% confidence interval, 9507-17,894) underwent urethroplasty nationally. Excision with primary anastomosis, buccal graft, and other graft or flap urethroplasty comprised 80.3%, 14.3%, and 5.4%, respectively. Buccal mucosa graft procedures increased over time (P = .03). Only 1.6% of hospitals have ≥ 20 urethroplasties performed annually. Urethroplasty type and urethroplasty volume were not associated with immediate complication rates. Hypertension, diabetes, chronic pulmonary disease, and obesity were the most common comorbidities in urethroplasty patients. Complications during urethroplasty hospitalization occurred in 6.6% of men, with surgical or wound complications being the most common (5.2%). Postoperative mortality was exceedingly rare. Older patients, African Americans, and patients with increased comorbidities were more likely to have complications. CONCLUSION An increasing number of buccal mucosa graft urethroplasties occurred over time. Urethroplasty patients have low immediate perioperative morbidity (6.6%) and mortality (0.07%). Patients who are older, African American, or have more comorbid conditions have greater risk for complications.


BJUI | 2012

Under-grading of <4 cm renal masses on renal biopsy

Catherine R. Harris; Jared M. Whitson; Maxwell V. Meng

Study Type – Prognosis (case series)


Urology | 2015

Utilities of Split-Thickness Skin Grafting for Male Genital Reconstruction

Amjad Alwaal; Jack W. McAninch; Catherine R. Harris; Benjamin N. Breyer

OBJECTIVE To report our successful outcomes of genital split-thickness skin graft (STSG) in covering major skin loss and providing good functional and cosmetic outcomes. MATERIALS AND METHODS A retrospective chart review was performed for all adult urology patients who underwent STSG at our institution from 1998 to 2014. Patients had a wide range of disease etiologies, including tissue loss (eg post-Fourniers gangrene), lymphedema, buried penis, foreign body injection, and tumors. RESULTS A total of 54 patients were identified with the following breakdown of etiology: 13 patients with tissue loss (eg post-Fourniers gangrene), 13 with lymphedema, 12 with buried penis, 8 with foreign body injection, 4 with hidradenitis suppurativa, and 4 with tumors. Fifty-two out of 54 patients had more than 90% graft take, with maintained or improved erection, normal voiding, good cosmetic outcome as judged by the patient and the examining surgeon, and normal mobility. One patient died at 3 months due to cardiovascular cause, and 1 patient had a poor take of the graft. CONCLUSION We show the wide variety of indications for STSG use, the ease of the technique, and its successful outcomes. We believe this procedure should be offered to patients as a first-line treatment and also as a last resort when other more conservative approaches fail.


The Journal of Urology | 2016

Urethral Stricture Score is Associated with Anterior Urethroplasty Complexity and Outcome

Amjad Alwaal; Thomas Sanford; Catherine R. Harris; E. Charles Osterberg; Jack W. McAninch; Benjamin N. Breyer

PURPOSE Several surgical techniques are available to treat anterior urethral stricture. The choice of surgical technique largely depends on the severity of stricture disease. The U-score (urethral stricture score) is based on urethral stricture characteristics, namely length (1 to 3 points), number (1 or 2 points), location (1 or 2 points) and etiology (1 or 2 points), which are tallied to provide a total score of 4 to 9 points. Our aim was to identify whether the U-score system is predictive of the surgical complexity and outcome of anterior urethroplasty. MATERIALS AND METHODS We retrospectively reviewed the records of all patients who underwent anterior urethroplasty from 2002 to 2012 by examining our prospectively collected urethroplasty database. We calculated the U-score and looked for an association with surgical complexity, recurrent stricture and time to recurrence. We defined recurrent stricture as the need for a secondary procedure. RESULTS There were 341 patients who underwent low complexity urethroplasty (anastomotic, buccal mucosal graft and augmented anterior urethroplasty) with a mean U-score of 4.7 while 48 underwent high complexity urethroplasty (double buccal mucosal graft, flap and graft/flap combination) with a mean score of 6.9. Higher U-score was predictive of higher surgical complexity (p <0.001). U-score was also significantly associated with recurrence. There was a consistent increase in the risk of recurrence with each additional U-score point. However, there was no association of U-score with time to recurrence. CONCLUSIONS We confirmed the validity of U-score to predict the complexity of surgery for anterior urethral strictures. For the first time to our knowledge we report an association between higher U-score and anterior urethroplasty outcome. The U-score could be used to risk stratify patients and help with perioperative counseling.


The Journal of Sexual Medicine | 2015

The Influence of Sexual Orientation and Sexual Role on Male Grooming‐Related Injuries and Infections

Thomas W. Gaither; Matthew D. Truesdale; Catherine R. Harris; Amjad Alwaal; Alan W. Shindel; Isabel E. Allen; Benjamin N. Breyer

AIM Pubic hair grooming is a common practice in the United States and coincides with prevalence of grooming-related injuries. Men who have sex with men (MSM) groom more frequently than men who have sex with women (MSW). We aim to characterize the influence of sexual orientation and sexual role on grooming behavior, injuries, and infections in men in the United States. METHODS We conducted a nationally representative survey of noninstitutionalized adults aged 18-65 residing in the United States. We examined the prevalence and risk factors of injuries and infections that occur as a result of personal grooming. RESULTS Of the 4,062 men who completed the survey, 3,176 (78.2%) report having sex with only women (MSW), 198 (4.9%) report sex with men (MSM), and 688 (16.9%) report not being sexually active. MSM are more likely to groom (42.5% vs. 29.0%, P < 0.001) and groom more around the anus, scrotum, and penile shaft compared with MSW. MSM receptive partners groom more often (50.9% vs. 26.9%, P = 0.005) and groom more for sex (85.3% vs. 51.9%, P < 0.001) compared with MSM insertive partners. MSM report more injuries to the anus (7.0% vs. 1.0%, P < 0.001), more grooming-related infections (7.0% vs. 1.0%, P < 0.001) and abscesses (8.8% vs. 2.5%, P = 0.010), as well as lifetime sexually transmitted infections (STIs) (1.65 vs. 1.45, P = 0.038) compared with MSW. More receptive partners report grooming at the time of their STI infection (52.2% vs. 14.3%, P < 0.001) compared with insertive partners. CONCLUSIONS Sexual orientation, and in particular sexual role, may influence male grooming behavior and impact grooming-related injuries and infections. Anogenital grooming may put one at risk for an STI. Healthcare providers should be aware of different grooming practices in order to better educate safe depilatory practices (i.e., the use of electric razors for anogenital grooming) in patients of all sexual orientations.


Sexual Medicine | 2015

The Decline of Inpatient Penile Prosthesis over the 10-Year Period, 2000–2010

Amjad Alwaal; Catherine R. Harris; Ahmed A. Hussein; Thomas Sanford; Charles E. McCulloch; Alan W. Shindel; Benjamin N. Breyer

Abstract Introduction Across all specialties, economic pressure is driving increased utilization of outpatient surgery when feasible. Aims Our aims were to analyze national trends of penile prosthesis (PP) surgery and to examine patient and hospital characteristics, and perioperative complications in the inpatient setting. Methods We analyzed data from National Inpatient Sample. Patients in NIS who underwent PP insertion between 2000 and 2010 were included. Main Outcome Measures Our main outcomes were the number of inpatient PP procedures, type of prosthesis, patient demographics, comorbidities, hospital characteristics, and immediate perioperative complications. Results There was a progressive and dramatic decline by nearly half in the number of both inflatable (IPP) and noninflatable (NIPP) inpatient insertions performed from 2000 to 2010 (P = 0.0001). The overall rate of inpatient complications for PP insertion was 13.5%. Patients with three or more comorbidities were found to have a higher risk of complications than patients with no comorbidities (OR = 1.45, 95% CI = 1.18–1.78) (P = 0.0001). Surgeries performed in high‐volume hospitals (10 or more PP cases per year) were associated with reduced risk of complications (OR = 0.6) (P < 0.0001). There was a dramatic decrease in inpatient setting for PP placement in high‐volume hospitals (32% in 2000 compared with 6% in 2010; P < 0.0001), and when compared with lower volume hospitals. NIPP was more likely performed in younger patients and in community hospitals, and less likely in white patients. Medicaid health insurance was associated with much higher rate of NIPP insertion than other types of insurance. Conclusions The number of PP procedures performed in the inpatient setting declined between 2000 and 2010, likely reflecting a shift toward increasing outpatient procedures. Our data also suggest a better outcome for patients having the procedure done at a high‐volume center in terms of inpatient complications. Alwaal A, Harris CR, Hussein AA, Sanford TH, McCulloch CE, Shindel AW, and Breyer BN. The decline of inpatient penile prosthesis over the 10‐year period, 2000–2010. Sex Med 2015;3:280–286.

Collaboration


Dive into the Catherine R. Harris's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar

Amjad Alwaal

University of California

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

E. Charles Osterberg

University of Texas at Austin

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Uwais B. Zaid

University of California

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge