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Dive into the research topics where Leona C. Han is active.

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Featured researches published by Leona C. Han.


The Journal of Urology | 2012

Comparative effectiveness for survival and renal function of partial and radical nephrectomy for localized renal tumors: A systematic review and meta-analysis

Simon P. Kim; R. Houston Thompson; Stephen A. Boorjian; Christopher J. Weight; Leona C. Han; M. Hassan Murad; Nathan D. Shippee; Patricia J. Erwin; Brian A. Costello; George K. Chow; Bradley C. Leibovich

PURPOSE The relative effectiveness of partial vs radical nephrectomy remains unclear in light of the recent phase 3 European Organization for the Research and Treatment of Cancer trial. We performed a systematic review and meta-analysis of partial vs radical nephrectomy for localized renal tumors, considering all cause and cancer specific mortality, and severe chronic kidney disease. MATERIALS AND METHODS Cochrane Central Register of Controlled Trials, MEDLINE®, EMBASE®, Scopus and Web of Science® were searched for sporadic renal tumors that were surgically treated with partial or radical nephrectomy. Generic inverse variance with fixed effects models were used to determine the pooled HR for each outcome. RESULTS Data from 21, 21 and 9 studies were pooled for all cause and cancer specific mortality, and severe chronic kidney disease, respectively. Overall 31,729 (77%) and 9,281 patients (23%) underwent radical and partial nephrectomy, respectively. According to pooled estimates partial nephrectomy correlated with a 19% risk reduction in all cause mortality (HR 0.81, p < 0.0001), a 29% risk reduction in cancer specific mortality (HR 0.71, p = 0.0002) and a 61% risk reduction in severe chronic kidney disease (HR 0.39, p < 0.0001). However, the pooled estimate of cancer specific mortality for partial nephrectomy was limited by the lack of robustness in consistent findings on sensitivity and subgroup analyses. CONCLUSIONS Our findings suggest that partial nephrectomy confers a survival advantage and a lower risk of severe chronic kidney disease after surgery for localized renal tumors. However, the results should be evaluated in the context of the low quality of the existing evidence and the significant heterogeneity across studies. Future research should use higher quality evidence to clearly demonstrate that partial nephrectomy confers superior survival and renal function.


The Journal of Urology | 2012

The Implications of Hospital Acquired Adverse Events on Mortality, Length of Stay and Costs for Patients Undergoing Radical Cystectomy for Bladder Cancer

Simon P. Kim; Nilay D. Shah; R. Jeffrey Karnes; Christopher J. Weight; Igor Frank; James P. Moriarty; Leona C. Han; Bijan J. Borah; Matthew K. Tollefson; Stephen A. Boorjian

PURPOSE The incidence of hospital acquired adverse events in radical cystectomy and their implications for hospital outcomes and costs remain poorly described. We describe the incidence of hospital acquired adverse events in radical cystectomy, and characterize its relationship with in-hospital mortality, length of stay and hospitalization costs. MATERIALS AND METHODS We identified 10,856 patients who underwent radical cystectomy for bladder cancer at 1,175 hospitals in the Nationwide Inpatient Sample from 2001 to 2008. We used hospital claims to identify adverse events for accidental puncture, decubitus ulcer, deep vein thrombosis/pulmonary embolus, methicillin-resistant Staphylococcus aureus, Clostridium difficile, surgical site infection and sepsis. Logistic regression and generalized estimating equation models were used to test the associations of hospital acquired adverse events with mortality, predicted prolonged length of stay and total hospitalization costs. RESULTS Hospital acquired adverse events occurred in 11.3% of all patients undergoing radical cystectomy (1,228). Adverse events were associated with a higher odds of in-hospital death (OR 8.07, p<0.001), adjusted prolonged length of stay (41.3%) and total costs (


European Urology | 2013

Hospitalization Costs for Radical Prostatectomy Attributable to Robotic Surgery

Simon P. Kim; Nilay D. Shah; R. Jeffrey Karnes; Christopher J. Weight; Nathan D. Shippee; Leona C. Han; Stephen A. Boorjian; Marc C. Smaldone; Igor Frank; Matthew T. Gettman; Matthew K. Tollefson; R. Houston Thompson

54,242 vs


Medical Care | 2014

Perceptions of Active Surveillance and Treatment Recommendations for Low-risk Prostate Cancer: Results from a National Survey of Radiation Oncologists and Urologists.

Simon P. Kim; Cary P. Gross; Paul L. Nguyen; Marc C. Smaldone; Nilay D. Shah; R. Jeffrey Karnes; R. Houston Thompson; Leona C. Han; James B. Yu; Quoc D. Trinh; Jeanette Y. Ziegenfuss; Maxine Sun; Jon C. Tilburt

26,306; p<0.001) compared to no adverse events on multivariate analysis. The incremental total costs attributable to hospital acquired adverse events were


The Journal of Urology | 2013

Disparities in Access to Hospitals with Robotic Surgery for Patients with Prostate Cancer Undergoing Radical Prostatectomy

Simon P. Kim; Stephen A. Boorjian; Nilay D. Shah; Christopher J. Weight; Jon C. Tilburt; Leona C. Han; R. Houston Thompson; Quoc-Dien Trinh; Maxine Sun; James P. Moriarty; R. Jeffrey Karnes

43.8 million. Postoperative sepsis was associated with the highest risk of mortality (OR 17.56, p<0.001), predicted prolonged length of stay (62.22%) and adjusted total cost (


The Journal of Urology | 2013

Clinical Implementation of Quality of Life Instruments and Prediction Tools for Localized Prostate Cancer: Results from a National Survey of Radiation Oncologists and Urologists

Simon P. Kim; R. Jeffrey Karnes; Paul L. Nguyen; Jeanette Y. Ziegenfuss; Leona C. Han; R. Houston Thompson; Quoc-Dien Trinh; Maxine Sun; Stephen A. Boorjian; Timothy J. Beebe; Jon C. Tilburt

79,613). CONCLUSIONS With hospital acquired adverse events occurring in approximately 11% of radical cystectomy cases, they pose a significant risk of in-hospital mortality and higher hospitalization costs. Therefore, increased attention is needed to reduce adverse events by improving patient safety, while understanding the economic implications for tertiary referral centers with possible policy changes such as denial of payment for hospital acquired adverse events.


The Journal of Urology | 2015

Variation in pelvic lymph node dissection among patients undergoing radical prostatectomy by hospital characteristics and surgical approach: results from the National Cancer Database.

Elyn H. Wang; James B. Yu; Cary P. Gross; Marc C. Smaldone; Nilay D. Shah; Quoc-Dien Trinh; Paul L. Nguyen; Maxine Sun; Leona C. Han; Simon P. Kim

BACKGROUND With health technology innovation responsible for higher health care costs, it is essential to have accurate estimates regarding the differential costs between robot-assisted radical prostatectomy (RARP) and open radical prostatectomy (ORP). OBJECTIVE To describe the total hospitalization costs attributable to robotic and open surgery for radical prostatectomy (RP). DESIGN, SETTING, AND PARTICIPANTS Using a population-based cohort by merging the Nationwide Inpatient Sample (NIS) and the American Hospital Association (AHA) survey from 2006 to 2008, we identified 29 837 prostate cancer patients who underwent RP. INTERVENTIONS ORP and RARP. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary outcome was total hospitalization costs adjusted to year 2008 US dollars. Generalized estimating equations were used to identify patient and hospital characteristics associated with total hospitalization costs and to estimate costs of ORP and RARP adjusted for case mix and hospital teaching status, location, and annual case volume. RESULTS AND LIMITATIONS Overall, 20 424 (68.5%) patients were surgically treated with RARP, and 9413 (31.5%) patients underwent ORP. Compared to ORP, patients undergoing RARP had shorter median length of stay (1 d vs 2 d; p<0.001) and were less likely to experience any postoperative complications (8.2% vs 11.3%; p<0.001). However, patients undergoing RARP had higher median hospitalization costs (


BJUI | 2013

The relationship of postoperative complications with in-hospital outcomes and costs after renal surgery for kidney cancer

Simon P. Kim; Bradley C. Leibovich; Nilay D. Shah; Christopher J. Weight; Bijan J. Borah; Leona C. Han; Stephen A. Boorjian; R. Houston Thompson

10409 vs


Leukemia & Lymphoma | 2012

Cost-effectiveness of adding rituximab to fludarabine and cyclophosphamide for the treatment of previously untreated chronic lymphocytic leukemia

John Hornberger; Carolina Reyes; Ashwini Shewade; Susan Lerner; Mark Friedmann; Leona C. Han; Hialy Gutierrez; Sacha Satram-Hoang; Michael J. Keating

8862; p<0.001). After adjusting for patient and hospital features, RARP was associated with higher total hospitalization costs compared to ORP (


BJUI | 2014

Association of type of renal surgery and access to robotic technology for kidney cancer: results from a population-based cohort

Steven V. Kardos; Cary P. Gross; Nilay D. Shah; Peter G. Schulam; Quoc-Dien Trinh; Marc C. Smaldone; Maxine Sun; Christopher J. Weight; Jesse D. Sammon; Leona C. Han; Simon P. Kim

11932 vs

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Maxine Sun

Brigham and Women's Hospital

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Quoc-Dien Trinh

Brigham and Women's Hospital

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