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Dr. Shari  Damast  Md image

Dr. Shari Damast Md

35 Park St Yale School Of Medicine - Dept Ther Radiology
New Haven CT 06519
203 002-2635
Medical School: Other - Unknown
Accepts Medicare: No
Participates In eRX: No
Participates In PQRS: No
Participates In EHR: No
License #: 244972
NPI: 1558522060
Taxonomy Codes:
2085R0001X

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Influence of robotic-assisted laparoscopic hysterectomy on vaginal cuff healing and brachytherapy initiation in endometrial carcinoma patients. - Practical radiation oncology
The purpose of this study was to examine the impact of robotic-assisted laparoscopic hysterectomy (RALH) compared with total abdominal hysterectomy by laparotomy (TAH) on vaginal cuff healing in early-stage endometrial carcinoma patients receiving adjuvant intravaginal brachytherapy (IVBT).We included 137 consecutive patients who underwent adjuvant IVBT without external beam radiation therapy or chemotherapy for stage I-II endometrial carcinoma. All patients underwent either RALH or TAH. Vaginal cuff healing status as assessed by inspection and palpation at initial evaluation by radiation oncology (VC1) was the primary outcome, with secondary outcomes including vaginal cuff healing status at first scheduled IVBT (VC2), time interval from hysterectomy to initiation of IVBT, and local recurrence.Among 137 patients, 74 (54.0%) underwent RALH and 63 (46.0%) underwent TAH. There was no significant difference in mean time from hysterectomy to initial radiation oncology evaluation between RALH and TAH patients (approximately 30 days in both groups). RALH was the only covariate associated with protracted vaginal cuff healing time at both VC1 (P = .003) and VC2 (P = .038). There was a significantly increased mean interval between hysterectomy and start of IVBT for patients undergoing RALH from 47.7 to 55.0 days (P < .001). Vaginal cuff healing was more likely to contribute to delay in delivery of IVBT in RALH patients, whereas abdominal or other nonvaginal wound healing was more likely to contribute to delay in TAH patients. There were no vaginal cuff recurrences detected after 16 months median follow-up.RALH for early-stage endometrial carcinoma was associated with longer vaginal cuff healing time and a mean increase in interval from hysterectomy to IVBT of 1 week compared with TAH.Copyright © 2016 American Society for Radiation Oncology. Published by Elsevier Inc. All rights reserved.
Who benefits from chemoradiation in stage III-IVA endometrial cancer? An analysis of the National Cancer Data Base. - Gynecologic oncology
Adjuvant therapy for advanced endometrial cancer (AEC) is not standardized. We investigated whether regional radiotherapy with chemotherapy (CRT) compared to chemotherapy alone (CT) was associated with improved overall survival (OS) in an AEC cohort and among subgroups by stage and histologic grade.Women who received CT or CRT after hysterectomy and bilateral salpingo-oophorectomy for FIGO stage III-IVA AEC diagnosed in 2004-2012 were identified in the National Cancer Data Base. Multilevel modeling was used to identify covariates associated with treatment selection. OS was compared using Kaplan-Meier estimates, the log-rank test, Cox proportional hazards regression, and propensity score matching.We identified 9837 patients, of whom 6358 (65%) received CT and 3479 (35%) received CRT. Median follow-up was 59.6months. OS was higher in patients receiving CRT compared to CT (70% v 55% at 5years, log-rank P<0.001). Controlling for stage, histologic grade, tumor size, age, comorbidity and race, CRT remained independently associated with improved OS (HR 0.63, 95% CI 0.57-0.70, P<0.001). When stratified by stage and histologic grade, there was a significant OS benefit for stage IIIA, IIIB, IIIC, grade 2, and grade 3 (all P<0.001), a trend for stage IVA (P=0.06), but no benefit for grade 1 (P=0.91). On multivariable subgroup analyses, these findings persisted, including lack of benefit in grade 1 patients (HR 0.72, P=0.14). These results were further confirmed after propensity score matching.Adjuvant CRT for AEC was associated with improved OS, except for patients with well-differentiated disease, who fared equally well with CT alone.Copyright © 2016 Elsevier Inc. All rights reserved.
Factors Predictive of Improved Survival in Patients With Brain Metastases From Gynecologic Cancer: A Single Institution Retrospective Study of 47 Cases and Review of the Literature. - International journal of gynecological cancer : official journal of the International Gynecological Cancer Society
The reported incidence of brain metastasis from epithelial ovarian cancer (EOC), endometrial cancer (EC), and cervical cancer (CC) is exceedingly rare. As the long-term survival for patients with gynecologic cancer increases, there has been a corresponding increase in the number of diagnosed intracranial metastases. We seek to report our experience with managing brain metastatic disease (BMD) in patients with gynecologic cancer.A retrospective review of all patients with EOC, EC, and CC at our institution revealed 47 patients with concurrent BMD between 2000 and 2013. Demographic data, risk factors, treatment modalities, progression-free data, and overall survival data were collected.Median survival time in patients with brain metastasis from EOC, EC, and CC was 9.0, 4.5, and 3.0 months, respectively. Two-year overall survival rates were 31.6%, 13.6%, and 0%, respectively. Patients received surgery, radiation therapy alone, palliative care, or radiation plus surgery. Radiation combined with surgical resection resulted in a significant hazards ratio of 0.36 (95% confidence interval, 0.15-0.86), compared with radiation alone.Our report provides a large single-institution experience of brain metastases from gynecologic cancer. Patients with BMD have poor prognoses; however, treatment with multimodal therapy including surgical resection and radiation may prolong overall survival.
Predictors of vaginal stenosis after intravaginal high-dose-rate brachytherapy for endometrial carcinoma. - Brachytherapy
Intravaginal high-dose-rate brachytherapy is an effective adjuvant treatment for localized endometrial carcinoma. However, relatively little is known about risk factors of post-treatment vaginal stenosis (VS).We included patients treated with brachytherapy for endometrial carcinoma from September 2011 to January 2014 with at least 3 months of followup. Patients who received external beam radiation therapy were excluded. VS was prospectively graded at each followup visit per Common Terminology Criteria for Adverse Events, version 4.03. χ(2) and t test analyses were used to assess the association of VS with various patient, tumor, treatment, and post-treatment factors. Multivariable logistic regression analysis was used to identify independent predictors of VS Grade ≥1 and ≥2.All 101 patients were disease free at last followup. Mean followup was 12.9 months (range, 3-34). Highest VS grades were zero in 67%, one in 26%, two in 6%, and three in 1%. Borderline significant variables associated with Grade ≥1 VS included vagina length, proportion of vagina treated, and total dose. Dilator use was significantly associated with Grade ≥2. Multivariable analysis revealed that proportion of vagina treated >60% (odds ratio [OR], 3.48; p = 0.009) and total dose >14 Gy (OR, 4.27; p = 0.015) were independent predictors of Grade ≥1 VS, and lack of consistent dilator use was an independent predictor of Grade ≥2 VS (OR, 5.60; p = 0.047).Patients treated with a higher total dose to a larger proportion of the vagina were more likely to develop Grade ≥1 VS. Consistent dilator use may also be protective against Grade ≥2 VS.Copyright © 2015 American Brachytherapy Society. Published by Elsevier Inc. All rights reserved.
High-dose-rate vaginal brachytherapy with chemotherapy for surgically staged localized uterine serous carcinoma. - Journal of contemporary brachytherapy
To evaluate our institutional experience combining carboplatin-paclitaxel (C/T) chemotherapy with high-dose-rate (HDR) intra-vaginal brachytherapy (IVB) following comprehensive surgical staging in localized uterine serous carcinoma (USC).Institutional chart review identified 56 patients with FIGO 2009 stage I-II USC treated between 2000-2010. Patients underwent total hysterectomy, bilateral salpingo-oopherectomy, and comprehensive surgical staging including pelvic and para-aortic lymph node dissection, omentectomy, and peritoneal cytology. Chemotherapy was 6 cycles of C/T, and the IVB dose was 14 Gy in 2 fractions, prescribed to 0.5 cm from the cylinder surface. Kaplan-Meier methods were used to estimate recurrence-free survival (RFS) and overall survival (OS).The median follow-up time was 49 months (range: 9-145). The 5-yr RFS and OS were 85% and 93%, respectively. In all cases of recurrence (n = 8), the first site of failure was extra-pelvic. There were no isolated vaginal recurrences, however, there was one vaginal apex recurrence recorded at 19 months in a patient with simultaneous lung metastases. Thus, the 2-year vaginal RFS was 98%.Excellent vaginal/pelvic control rates were observed. Further study of HDR brachytherapy dose and fractionation in combination with chemotherapy is worthwhile.
Adjuvant carboplatin, paclitaxel, and vaginal cuff brachytherapy for stage III endometrial cancer: analysis of outcomes and patterns of recurrence based on pathologic characteristics. - International journal of gynecological cancer : official journal of the International Gynecological Cancer Society
The aim of this study was to evaluate outcomes of patients with stage III endometrial adenocarcinoma treated with surgery followed by adjuvant chemotherapy and vaginal cuff brachytherapy.We retrospectively identified 83 patients treated for 1988 International Federation of Gynecology and Obstetrics (FIGO) stage III endometrial adenocarcinoma at our institution between 2003 and 2010. All patients underwent comprehensive surgical staging. Adjuvant therapy was carboplatin and paclitaxel for 6 cycles and vaginal cuff brachytherapy. For analysis, patients were grouped into type I (FIGO grade 1-2 endometrioid histology, n = 41) or type II (FIGO grade 3, clear cell or papillary serous histology, n = 42) disease. Forty-three patients (52%) had node-positive disease, with similar node-positive rates for type I (n = 21, 51.2%) and type II (n = 22, 52.4%).The median follow-up was 38.6 months. There were no isolated vaginal failures. The estimated 3-year disease-free survival (DFS) and overall survival (OS) for type I versus type II were 92.4% versus 58.0% (P = 0.001) and 97.2% versus 65.8% (P = 0.002), respectively. The 3-year DFS and OS for node negative versus node positive were 85.0% versus 63.6% (P = 0.02) and 84.2% versus 78.0% (P = 0.02), respectively. Associations between type I histology and node-negative disease with improved DFS and OS persisted on multivariate analysis.Our institutional approach of adjuvant chemotherapy and vaginal cuff brachytherapy for stage III endometrial cancer seemed acceptable for patients with low-risk histology or node-negative disease. In contrast, higher rates of failure among those with high-risk histology and/or node-positive disease support intensification of therapy in these subsets.
Comparative patient-centered outcomes (health state and adverse sexual symptoms) between adjuvant brachytherapy versus no adjuvant brachytherapy in early stage endometrial cancer. - Annals of surgical oncology
To determine a relationship between sexual functioning and health state among survivors of stage I endometrial cancer, and to examine whether adjuvant intravaginal radiotherapy (IVRT) affects these measures compared to hysterectomy alone.Two hundred five survivors (>1 year from surgery) completed questionnaires containing the EuroQol (EQ5D) and the Female Sexual Function Index (FSFI). A total of 136 (66.3 %) underwent surgery alone, and 69 (33.7 %) received IVRT. Pearson correlation was used to correlate FSFI and EQ5D-Health State scores. Multivariable regression was performed to measure the impact of IVRT on sexual functioning and health state.A majority of patients (80 %) met criteria for sexual dysfunction by FSFI < 26.5. A significant correlation was detected between FSFI and EQ5D scores (Pearson correlation = 0.21, p = 0.003). Compared to the IVRT group, the surgery group was younger (p = 0.001) and trended toward more frequent use of minimally invasive surgery versus laparotomy (p = 0.08). Otherwise, the two groups were well balanced with respect to demographics, comorbidities, and baseline sexual activity. Controlling for age and surgery type, IVRT was not associated with poorer health state or sexual function. Receipt of laparotomy was associated with both poorer health state and sexual function (p = 0.0156 and p = 0.0247, respectively).Sexual functioning was generally poor among endometrial cancer survivors; however, those with improved FSFI scores tended to have superior health states. IVRT was not a significant risk factor; however, receipt of laparotomy appeared to be associated with poorer sexual functioning and health state.
Five-year outcomes of adjuvant carboplatin/paclitaxel chemotherapy and intravaginal radiation for stage I-II papillary serous endometrial cancer. - Gynecologic oncology
The purpose of this study is to report our single-institution experience with concurrent adjuvant intravaginal radiation (IVRT) and carboplatin/paclitaxel chemotherapy for early stage uterine papillary serous carcinoma (UPSC).From 10/2000 to 12/2009, 41 women with stage I-II UPSC underwent surgery followed by IVRT (median dose of 21 Gy in 3 fractions) and concurrent carboplatin (AUC=5-6) and paclitaxel (175 mg/m(2)) for six planned cycles. IVRT was administered on non-chemotherapy weeks. The Kaplan-Meier method was used to estimate survival, and the log-rank test was used for comparisons.Median patient age was 67 years (51-80 years). Surgery included hysterectomy, bilateral salpingo-oophorectomy, peritoneal washings, omental biopsy, and pelvic and paraaortic lymph node sampling. FIGO 2009 stage was IA in 73%, IB in 10%, and II in 17%. Histology was pure serous in 71% of cases. Thirty-five patients (85%) completed all planned treatment. With a median follow-up time of 58 months, the 5-year disease-free (DFS) and overall survival (OS) rates were 85% (95%CI, 73-96%) and 90% (95%CI, 80-100%). The 5-year pelvic, para-aortic, and distant recurrence rates were 9%, 5%, and 10%, respectively. There were no vaginal recurrences. Of the 4 pelvic recurrences, 2 were isolated and were successfully salvaged. Patients with stage II disease had lower DFS (71% vs. 88%; p=0.017) and OS (71% vs. 93%; p=0.001) than patients with stage I disease.Concurrent adjuvant carboplatin/paclitaxel chemotherapy and IVRT provide excellent outcomes for early stage UPSC. Whether this regimen is superior to pelvic radiation will require confirmation from the ongoing randomized trial.Copyright © 2012 Elsevier Inc. All rights reserved.
Sexual functioning among endometrial cancer patients treated with adjuvant high-dose-rate intra-vaginal radiation therapy. - International journal of radiation oncology, biology, physics
We used the Female Sexual Function Index (FSFI) to investigate the prevalence of sexual dysfunction (SD) and factors associated with diminished sexual functioning in early stage endometrial cancer (EC) patients treated with simple hysterectomy and adjuvant brachytherapy.A cohort of 104 patients followed in a radiation oncology clinic completed questionnaires to quantify current levels of sexual functioning. The time interval between hysterectomy and questionnaire completion ranged from <6 months to >5 years. Multivariate regression was performed using the FSFI as a continuous variable (score range, 1.2-35.4). SD was defined as an FSFI score of <26, based on the published validation study.SD was reported by 81% of respondents. The mean (± standard deviation) domain scores in order of highest-to-lowest functioning were: satisfaction, 2.9 (± 2.0); orgasm, 2.5 (± 2.4); desire, 2.4 (± 1.3); arousal, 2.2 (± 2.0); dryness, 2.1 (± 2.1); and pain, 1.9 (± 2.3). Compared to the index population in which the FSFI cut-score was validated (healthy women ages 18-74), all scores were low. Compared to published scores of a postmenopausal population, scores were not statistically different. Multivariate analysis isolated factors associated with lower FSFI scores, including having laparotomy as opposed to minimally invasive surgery (effect size, -7.1 points; 95% CI, -11.2 to -3.1; P<.001), lack of vaginal lubricant use (effect size, -4.4 points; 95% CI, -8.7 to -0.2, P=.040), and short time interval (<6 months) from hysterectomy to questionnaire completion (effect size, -4.6 points; 95% CI, -9.3-0.2; P=.059).The rate of SD, as defined by an FSFI score <26, was prevalent. The postmenopausal status of EC patients alone is a known risk factor for SD. Additional factors associated with poor sexual functioning following treatment for EC included receipt of laparotomy and lack of vaginal lubricant use.Copyright © 2012 Elsevier Inc. All rights reserved.
Marginal recurrences after selective targeting with intensity-modulated radiotherapy for oral tongue cancer. - Head & neck
No universal consensus of optimal radiation target coverage for oral tongue cancer exists, and there is wide variability in practice. Some centers use intensity-modulated radiotherapy (IMRT) to selectively target only certain regions at risk while sparing others; however, patterns of failure after such selective targeting are rarely reported.We critically examined the location of failure in 4 patients with stage III to IV oral tongue cancer who presented to our department with locoregional recurrence after receiving IMRT with selective radiation targeting at outside institutions. All 4 patients' cancer recurred marginally in regions that were not initially targeted, whereas the regions would have been targeted if comprehensive IMRT targeting had been used. The median time to recurrence was short (3.9 months; range, 1.2-10.1 months).This case series highlights the occurrence of marginal failures after selective targeting with IMRT for oral tongue cancer and cautions against this practice unless further supporting evidence becomes available.Copyright © 2011 Wiley Periodicals, Inc.

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