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Featured researches published by Renee A. Cowan.


Gynecologic Oncology | 2016

A pilot study of topical imiquimod therapy for the treatment of recurrent extramammary Paget's disease

Renee A. Cowan; Destin Black; Lien N. Hoang; Kay J. Park; Robert A. Soslow; Floor J. Backes; Ginger J. Gardner; Nadeem R. Abu-Rustum; Mario M. Leitao; Eric L. Eisenhauer; Dennis S. Chi

OBJECTIVE The objective of this prospective pilot study was to assess the clinical and histologic effects of topical imiquimod therapy on recurrent extramammary Pagets disease of the vulva. METHODS Patients with biopsy-proven recurrent extramammary Pagets disease presenting to the gynecology outpatient services at two participating institutions were recruited for conservative treatment with 5% imiquimod cream from 2007 to 2011. The topical cream was to be applied 3 times per week for 12weeks. Punch biopsy and photography were performed at baseline and at the 12-week time point. RESULTS Eight patients from two institutions were enrolled. Complete clinical and histologic response was achieved in 6 (75%) patients by the 12-week follow-up appointment. Of the two remaining patients, one had a complete clinical response but no significant histologic response; the other patient was removed from the study protocol secondary to intolerable local irritation. Two patients continue to have no evidence of disease after a median follow-up of 35months. Five are alive with disease. No patients progressed to invasive cancer while receiving therapy. CONCLUSION Topical 5% imiquimod cream is a safe and feasible option for women suffering from recurrent extramammary Pagets disease of the vulva, and should be considered as a viable alternative to surgical management. Given the rare nature of this disease, additional multi-institutional prospective studies should be conducted to explore the efficacy of this treatment regime.


American Society of Clinical Oncology educational book / ASCO. American Society of Clinical Oncology. Meeting | 2016

Primary Surgery or Neoadjuvant Chemotherapy in Advanced Ovarian Cancer: The Debate Continues…

Alexandra Leary; Renee A. Cowan; Dennis S. Chi; Sean Kehoe; Matthew Nankivell

Primary debulking surgery (PDS) followed by platinum-based chemotherapy has been the cornerstone of treatment for advanced ovarian cancer for decades. Primary debulking surgery has been repeatedly identified as one of the key factors in improving survival in patients with advanced ovarian cancer, especially when minimal or no residual disease is left behind. Achieving these results sometimes requires extensive abdominal and pelvic surgical procedures and consultation with other surgical teams. Some clinicians who propose a primary chemotherapy approach reported an increased likelihood of leaving no macroscopic disease after surgery and improved patient-reported outcomes and quality-of-life (QOL) measures. Given the ongoing debate regarding the relative benefit of PDS versus neoadjuvant chemotherapy (NACT), tumor biology may aid in patient selection for each approach. Neoadjuvant chemotherapy offers the opportunity for in vivo chemosensitivity testing. Studies are needed to determine the best way to evaluate the impact of NACT in each individual patient with advanced ovarian cancer. Indeed, the biggest utility of NACT may be in research, where this approach provides the opportunity for the investigation of predictive markers, mechanisms of resistance, and a forum to test novel therapies.


International Journal of Hyperthermia | 2017

Current status and future prospects of hyperthermic intraoperative intraperitoneal chemotherapy (HIPEC) clinical trials in ovarian cancer

Renee A. Cowan; Roisin E. O’Cearbhaill; Oliver Zivanovic; Dennis S. Chi

Abstract The natural history of advanced-stage epithelial ovarian cancer is one of clinical remission after surgery and platinum/taxane-based intravenous (IV) and/or intraperitoneal (IP) chemotherapy followed by early or late recurrence in the majority of patients. Prevention of progression and recurrence remains a major hurdle in the management of ovarian cancer. Recently, many investigators have evaluated the use of normothermic and hyperthermic intraoperative IP drug delivery as a management strategy. This is a narrative review of the current status of clinical trials of hyperthermic intraoperative intraperitoneal chemotherapy (HIPEC) in ovarian cancer and the future directions for this treatment strategy. The existing studies on HIPEC in patients with epithelial ovarian cancer are mostly retrospective in nature, are heterogeneous with regards to combined inclusion of primary and recurrent disease and lack unbiased data. Until data are available from evidence-based trials, it is reasonable to conclude that surgical cytoreduction and HIPEC is a rational and interesting, though still investigative, approach in the management of epithelial ovarian cancer, whose use should be employed within prospective clinical trials.


Gynecologic Oncology | 2016

Electronic patient-reported outcomes from home in patients recovering from major gynecologic cancer surgery: A prospective study measuring symptoms and health-related quality of life.

Renee A. Cowan; Rudy S. Suidan; Vaagn Andikyan; Youssef A. Rezk; M. Heather Einstein; Kaity Chang; Jeanne Carter; Oliver Zivanovic; Elizabeth J. Jewell; Nadeem R. Abu-Rustum; Ethan Basch; Dennis S. Chi

PURPOSE We previously reported on the feasibility of a Web-based system to capture patient-reported outcomes (PROs) in the immediate postoperative period. The purpose of this study was to update the experience of these patients and assess patient and provider satisfaction and feedback regarding the system. METHODS This is a prospective cohort study of patients scheduled to undergo laparotomy for presumed gynecologic malignancy. Patients completed a Web-based Symptom Tracking and Reporting (STAR) questionnaire preoperatively and weekly during a 6-week postoperative period. Email alerts were sent to study nurses when concerning patient responses were entered. The patient and the nurse assessments of STARs usefulness were measured via an exit survey. RESULTS The study enrolled 96 eligible patients. Of these, 71 patients (74%) completed at least four of seven total sessions. Of the patients who completed the exit satisfaction survey, 98% found STAR easy to use; 84% found it useful; and 82% would recommend it to other patients. Despite positive feedback from patients, clinical personnel found that the STAR system increased their current workload without enhancing patient care. CONCLUSIONS Application of an electronic program for PROs in those recovering from major gynecologic cancer surgery is feasible, and acceptable to most patients. While most clinicians did not find STAR clinically helpful, the majority of patients reported a positive experience with the system and would recommend its use. The program helped many patients feel more empowered in their postoperative recovery.


Gynecologic Oncology | 2017

Feasibility, safety and clinical outcomes of cardiophrenic lymph node resection in advanced ovarian cancer

Renee A. Cowan; Jill Tseng; Vijayashree Murthy; Radhika Srivastava; Kara Long Roche; Oliver Zivanovic; Ginger J. Gardner; Dennis S. Chi; Bernard J. Park; Yukio Sonoda

OBJECTIVES Surgical resection of enlarged cardiophrenic lymph nodes (CPLNs) in primary treatment of advanced ovarian cancer has not been widely studied. We report on a cohort of patients undergoing CPLN resection during primary cytoreductive surgery (CRS), examining its feasibility, safety, and potential impact on clinical outcomes. METHODS We identified all patients undergoing primary CRS/CPLN resection for Stages IIIB-IV high-grade epithelial ovarian cancer at our institution from 1/2001-12/2013. Clinical and pathological data were collected. Statistical tests were performed. RESULTS 54 patients underwent CPLN resection. All had enlarged CPLNs on preoperative imaging. Median diameter of an enlarged CPLN: 1.3cm (range 0.6-2.9). Median patient age: 59y (range 41-74). 48 (88.9%) underwent transdiaphragmatic resection; 6 (11.1%) underwent video-assisted thoracic surgery. A median of 3 nodes (range 1-23) were resected. A median of 2 nodes (range 0-22) were positive for metastasis. 51/54 (94.4%) had positive nodes. 51 (94.4%) had chest tube placement; median time to removal: 4d (range 2-12). 44 (81.4%) had peritoneal carcinomatosis. 19 (35%) experienced major postoperative complications; 4 of these (7%) were surgery-related. Median time to adjuvant chemotherapy: 40d (range 19-205). All patients were optimally cytoreduced, 30 (55.6%) without visible residual disease. Median progression-free survival: 17.2mos (95% CI 12.6-21.8); median overall survival: 70.1mos (95% CI 51.2-89.0). CONCLUSIONS Enlarged CPLNs can be identified on preoperative imaging and may indicate metastases. Resection can identify extra-abdominal disease, confirm Stage IV disease, obtain optimal cytoreduction. In the proper setting it is feasible, safe, and does not delay chemotherapy. In select patients, it may improve survival.


Gynecologic Oncology | 2018

Exploring the impact of income and race on survival for women with advanced ovarian cancer undergoing primary debulking surgery at a high-volume center

Renee A. Cowan; Jill Tseng; Narisha Ali; Helen Dearie; Vijayashree Murthy; Renee L. Gennarelli; Alexia Iasonos; Nadeem R. Abu-Rustum; Dennis S. Chi; Kara Long Roche; Carol L. Brown

OBJECTIVE To evaluate patients with advanced ovarian cancer (OC) undergoing primary debulking surgery (PDS) at a high-volume center (HVC), to determine whether socio-demographic disparities in PDS outcome and overall survival (OS) were present. METHODS All patients with stages IIIB-IV high-grade OC undergoing PDS at our institution from 1/2001-12/2013 were identified. Patients self-identified race/ethnicity as non-Hispanic White (NHW), non-Hispanic Black (NHB), Asian (A), or Hispanic (H). Income level for the entire cohort was estimated using the census-reported income level for each patients zip code as a proxy for SES. Main outcome measures were PDS outcome and median OS. Cox proportional hazards model was used to examine differences in OS by racial/ethnic and income category, controlling for selected clinical factors. RESULTS 963 patients were identified for analysis: 855 NHW; 43 A, 34H, 28 NHB, and 3 unknown. PDS outcome was not significantly different among NHB and H as compared to NHW. Compared to NHW, Asians were more likely to have >1cm residual (AOR 2.32, 95%CI 1.1-4.9, p=0.03). Median income for the entire cohort was


Gynecologic Oncology | 2018

Continuous improvement in primary Debulking surgery for advanced ovarian cancer: Do increased complete gross resection rates independently lead to increased progression-free and overall survival?

Jill Tseng; Renee A. Cowan; Qin Zhou; Alexia Iasonos; M.E. Byrne; Tracy Polcino; Clarissa Polen-De; Ginger J. Gardner; Yukio Sonoda; Oliver Zivanovic; Nadeem R. Abu-Rustum; Kara Long Roche; Dennis S. Chi

85,814 (range


Gynecologic Oncology | 2018

Perioperative epidural use and survival outcomes in patients undergoing primary debulking surgery for advanced ovarian cancer

Jill Tseng; Renee A. Cowan; Anoushka M. Afonso; Qin Zhou; Alexia Iasonos; Narisha Ali; Errika Thompson; Yukio Sonoda; Roisin Eilish O'Cearbhaill; Dennis S. Chi; Nadeem R. Abu-Rustum; Kara Long Roche

10,926-


Gynecologic Oncology | 2017

A comparative analysis of prediction models for complete gross resection in secondary cytoreductive surgery for ovarian cancer

Renee A. Cowan; A.G.Z. Eriksson; Sara M. Jaber; Qin Zhou; Alexia Iasonos; Oliver Zivanovic; Mario M. Leitao; Nadeem R. Abu-Rustum; Dennis S. Chi; Ginger J. Gardner

231,667). After adjusting for significant prognostic factors, there were no significant differences in PDS outcome between income groups (p=0.7281). Median OS was 55.1mos (95%CI 51.8-58.5) with no significant differences in OS between the income (p=0.628) or racial/ethnic (p=0.615) groups. CONCLUSION Statistically significant socio-demographic disparities in PDS and survival outcomes were not observed among women with advanced OC treated at this HVC. Increased efforts are needed to centralize care to and increase the diversity of pts treated at HVCs.


Journal of Clinical Oncology | 2017

Does treatment at a high volume center mitigate racial and ethnic disparities in ovarian cancer survival

Renee A. Cowan; Jill Tseng; Vinat Palayekar; Renee L. Gennarelli; Nadeem R. Abu-Rustum; Dennis S. Chi; Kara C. Long-Roche; Carol L. Brown

OBJECTIVES To assess complete gross resection (CGR) rates and survival outcomes in patients with advanced ovarian cancer who underwent primary debulking surgery (PDS) during a 13-year period in which specific changes to surgical paradigm were implemented. METHODS We identified all patients with stage IIIB-IV high-grade ovarian carcinoma who underwent PDS at our institution, with the intent of maximal cytoreduction, from 1/2001-12/2013. Patients were categorized by year of PDS based on the implementation of surgical changes to our approach to ovarian cancer debulking (Group 1, 2001-2005; Group 2, 2006-2009; Group 3, 2010-2013). RESULTS Among 978 patients, 78% had stage IIIC disease and 89% had disease of serous histology. Carcinomatosis was found in 81%, and 60% had bulky upper abdominal disease (UAD). Compared to Group 1, those who underwent PDS during the latter 2 time periods had higher ASA scores (p < 0.001), higher-stage disease (p < 0.001), and more often had carcinomatosis (p = 0.015) and bulky UAD (p = 0.009). CGR rates for Groups 1-3 increased from 29% to 40% to 55%, respectively (p < 0.001). Five-year progression-free survival (PFS) rates increased over time (15%, 16%, and 20%, respectively; p = 0.199), as did 5-year overall survival (OS) rates (40%, 44%, and 56%, respectively; p < 0.001). On multivariable analysis, CGR was independently associated with PFS (p < 0.001) and OS (p < 0.001). CONCLUSIONS Despite higher-stage disease and greater tumor burden, CGR rates, PFS and OS for patients who underwent PDS increased over a 13-year period. Surgical paradigm shifts implemented specifically to achieve more complete surgical cytoreduction are likely the reason for these improvements.

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Dennis S. Chi

Memorial Sloan Kettering Cancer Center

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Nadeem R. Abu-Rustum

Memorial Sloan Kettering Cancer Center

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Oliver Zivanovic

Memorial Sloan Kettering Cancer Center

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Ginger J. Gardner

Memorial Sloan Kettering Cancer Center

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Yukio Sonoda

Memorial Sloan Kettering Cancer Center

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Alexia Iasonos

Memorial Sloan Kettering Cancer Center

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K. Long Roche

Memorial Sloan Kettering Cancer Center

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Jill Tseng

Memorial Sloan Kettering Cancer Center

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Q. Zhou

Memorial Sloan Kettering Cancer Center

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Kara Long Roche

Memorial Sloan Kettering Cancer Center

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