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Dive into the research topics where N.K. Lee is active.

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Featured researches published by N.K. Lee.


Anesthesiology | 2015

Corneal abrasion in hysterectomy and prostatectomy: role of laparoscopic and robotic assistance.

Ajay Sampat; Isaac Parakati; Rangesh Kunnavakkam; David B. Glick; N.K. Lee; Meaghan Tenney; Steven Roth

Background: Radical prostatectomy (RP) is most commonly performed laparoscopically with a robot (robotic-assisted laparoscopic radical prostatectomy, R/PROST). Hysterectomy, which may be open hysterectomy (O/HYST) or laparoscopic hysterectomy (L/HYST), has been increasingly frequently done via robot (R/HYST). Small case series suggest increased corneal abrasions (CAs) with less invasive techniques. Methods: The authors identified RP (166,942), O/HYST (583,298), or L/HYST (216,890) discharges with CA in the Nationwide Inpatient Sample (2000–2011). For 2009–2011, they determined odds ratios (ORs) and 95% confidence intervals (CIs) for CA, in R/PROST, non-R/PROST, L/HYST, O/HYST, and R/HYST. Uni- and multivariate models studied CA risk depending on surgical procedure, age, race, year, chronic illness, and malignancy. Results: In 2000–2011, 0.18% RP, 0.13% L/HYST, and 0.03% O/HYST sustained CA. Compared with 17,554 non-R/PROSTs (34 abrasions, 0.19%) in 2009–2011, OR was not significantly higher in 28,521 R/PROSTs (99, 0.35%; OR 1.508; CI 0.987 to 2.302; P < 0.057). CA significantly increased in L/HYST (70/51,323; 0.136%) versus O/HYST (70/191,199; 0.037%; OR 3.821; CI 2.594 to 5.630; P < 0.0001), further increasing in R/HYST (63/21, 213; 0.297%; OR 6.505; CI 4.323 to 9.788; P < 0.0001). For hysterectomy, risk of CA increased with age (OR 1.020; CI 1.007 to 1.034; P < 0.003) and number of chronic conditions (OR 1.139; CI 1.065 to 1.219; P < 0.0001). CA risk was likewise elevated in R/HYST with number of chronic conditions. Being African American significantly decreased CA risk in R/PROST and in R/HYST or L/HYST. Conclusions: L/HYST increased CA nearly four-fold, and R/HYST approximately 6.5-fold versus O/HYST. Identifiable preoperative factors are associated with either increased risk (age, chronic conditions) or decreased risk (race).


Cancer | 2013

The effect of treatment time in locally advanced cervical cancer in the era of concurrent chemoradiotherapy.

Suisui Song; Sonali Rudra; Michael D. Hasselle; Paige L. Dorn; Loren K. Mell; Arno J. Mundt; S. Diane Yamada; N.K. Lee; Yasmin Hasan

This study sought to determine if treatment time impacts pelvic failure (PF), distant failure (DF), or disease‐specific mortality (DSM) in patients undergoing concurrent chemoradiotherapy (CCRT).


Gynecologic Oncology | 2015

Patterns and utility of routine surveillance in high grade endometrial cancer.

Jessica Hunn; Meaghan Tenney; E. Bishop; Kathleen N. Moore; William Watkin; Carolyn V. Kirschner; Jean A. Hurteau; Gustavo C. Rodriguez; Ernst Lengyel; N.K. Lee; S. Diane Yamada

OBJECTIVE To evaluate surveillance methods and their utility in detecting recurrence of disease in a high grade endometrial cancer population. METHODS We performed a multi-institutional retrospective chart review of women diagnosed with high grade endometrial cancer between the years 2000 and 2011. Surveillance data was abstracted and analyzed. Surveillance method leading to detection of recurrence was identified and compared by stage of disease and site of recurrence. RESULTS Two hundred and fifty-four patients met the criteria for inclusion. Vaginal cytology was performed in the majority of early stage patients, but was utilized less in advanced stage patients. CA-125 and CT imaging were used more frequently in advanced stage patients compared to early stage. Thirty-six percent of patients experienced a recurrence and the majority of initial recurrences (76%) had a distant component. Modalities that detected cancer recurrences were: symptoms (56%), physical exam (18%), surveillance CT (15%), CA-125 (10%), and vaginal cytology (1%). All local recurrences were detected by symptoms or physical exam findings. While the majority of loco-regional and distant recurrences (68%) were detected by symptoms or physical exam, 28% were detected by surveillance CT scan or CA 125. One loco-regional recurrence was identified by vaginal cytology but no recurrences with a distant component detected by this modality. CONCLUSIONS Symptoms and physical examination identify the majority of high grade endometrial cancer recurrences, while vaginal cytology is the least likely surveillance modality to identify a recurrence. The role of CT and CA-125 surveillance outside of a clinical trial needs to be further reviewed.


International Journal of Gynecological Cancer | 2017

Venous Thromboembolism in Patients Receiving Extended Pharmacologic Prophylaxis After Robotic Surgery for Endometrial Cancer

Josephine S. Kim; Kathryn A. Mills; J. Fehniger; C. Liao; Jean A. Hurteau; Carolyn V. Kirschner; N.K. Lee; Gustavo C. Rodriguez; S. Diane Yamada; Elena S. Diaz Moore; Meaghan Tenney

Objective This study aims to determine the rate of postoperative venous thromboembolism (VTE) in endometrial cancer patients undergoing robotic hysterectomy with or without extended pharmacologic VTE prophylaxis. Methods/Materials A retrospective chart review of women undergoing robotic hysterectomy with or without other procedures for endometrial cancer from January 2010 to February 2015 was conducted at 2 institutions. Charts were manually abstracted, and rates of VTE within 30 and 60 days after surgery were determined. Patients were then stratified by those who did and did not receive extended VTE prophylaxis. Results A total of 403 patients were included, of which 367 patients (91%) received extended pharmacologic prophylaxis and 36 patients (9%) did not. Low molecular weight heparin prescriptions ranged from 7 to 30 days. Patients receiving extended prophylaxis (EP) were older (63 ± 11 vs 57 ± 12; P = 0.004), more frequently underwent lymphadenectomy (67% vs 34%; P < 0.001), and had higher-grade tumors compared with patients not receiving EP. Overall 30-day and 60-day VTE rates were 0.7% and 1.2%, respectively. There were no significant differences in 30-day and 60-day VTE rates among patients that did and did not receive EP, although a trend toward lower VTE rates in the EP group was observed (30-day rates 0.5% vs 2.8% respectively, P = 0.25; 60-day rates 0.8% vs 5.6%, P = 0.07). Conclusions In this study, 30-day and 60-day VTE rates after minimally invasive surgery for endometrial cancer were low. Rates were also similar to those of previous reports in this setting in which the majority of patients did not receive extended VTE prophylaxis. Given the consistent finding that postoperative VTE in this population is rare regardless of prophylaxis use and the variability in practice patterns for VTE prophylaxis, the development of best practice guidelines for EP use specific to this setting is warranted.


International Journal of Gynecological Cancer | 2016

Statin Use Significantly Improves Overall Survival in High-Grade Endometrial Cancer.

Feng Ch; Miller Cm; Meaghan Tenney; N.K. Lee; Yamada Sd; Yasmin Hasan

Objective Preclinical data and recent epidemiological studies suggest that statins have antiproliferative and antimetastatic effects in various cancer cells, and reduce cancer mortality and recurrence. We study the effect of statin use on survival outcomes and recurrence rates in patients with endometrial cancer with high-risk histology. Materials and Methods All patients receiving definitive therapy for high-risk endometrial cancer from 1995 to 2014 were retrospectively reviewed. Health characteristics at baseline were collected, and statin use was determined from medical records. Overall survival (OS) and progression-free survival (PFS) were estimated using the Kaplan-Meier method and compared using the log-rank test. Cox proportional hazards regression models were used for univariate and multivariate analysis to determine independent factors associated with OS and PFS. Results A total of 199 patients were included in the study, of which 76 were hyperlipidemic and 50 used statins. The median follow-up time was 31 months from time of diagnosis. Hyperlipidemic patients who used statins had improved OS compared with hyperlipidemic patients not using statins (hazard ratio, 0.42; 95% confidence interval, 0.20–0.87; P = 0.02). Statin use was also associated with improved PFS (hazard ratio, 0.47; 95% confidence interval, 0.23–0.95; P = 0.04) on multivariate analysis. Hyperlipidemic patients who used statins had borderline improved freedom from local failure compared with hyperlipidemic cases not using statins (P = 0.08, log-rank test). Statin use was not found to be associated with improved cancer-specific mortality. Conclusions Statin use is independently associated with significant improvements in PFS for the overall group and PFS and OS in the hyperlipidemic group.


Gynecologic Oncology | 2015

Statin use significantly improves overall survival in high-grade endometrial cancer

C.H. Feng; C.M. Miller; M.M. Salgia; Meaghan Tenney; N.K. Lee; Diane Yamada; Yasmin Hasan


Gynecologic Oncology | 2017

Endometrial cancer survivors’ access to recommended self-care resources to target obesity in a high poverty urban community

J. Ross; Veronica Escamilla; N.K. Lee; S.D. Yamada; Stacy Tessler Lindau


Gynecologic Oncology | 2017

Cardiovascular Risk Factors and Their Influence on Stage and Treatment Modalities in Type 2 Endometrial Cancers

K. Laus; J. Ross; C. Liao; I. Alsaden; M. Javellana; S.D. Yamada; N.K. Lee


Gynecologic Oncology | 2017

Effect of Diabetes and Metformin on Uterine Risk Factors in Type 2 Endometrial Cancers

I. Alsaden; J. Ross; C. Liao; M. Javellana; K. Laus; S.D. Yamada; N.K. Lee


Gynecologic Oncology | 2017

Clinical and Pathologic Characteristics of Long-Term Survivors of Type 2 Endometrial Cancer

M. Javellana; J. Ross; C. Liao; K. Laus; I. Alsadan; S.D. Yamada; N.K. Lee

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J. Ross

University of Chicago

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C. Liao

University of Chicago

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Carolyn V. Kirschner

NorthShore University HealthSystem

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Gustavo C. Rodriguez

NorthShore University HealthSystem

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