Preoperative predictors of delay in initiation of adjuvant chemotherapy in patients undergoing primary debulking surgery for ovarian cancer Ovarian Cancer and Us OVARIAN CANCER and US Ovarian Cancer and Us

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Sunday, September 11, 2016

Preoperative predictors of delay in initiation of adjuvant chemotherapy in patients undergoing primary debulking surgery for ovarian cancer



abstract:
Preoperative predictors of delay in initiation of adjuvant chemotherapy in patients undergoing primary debulking surgery for ovarian cancer
 

Highlights

  • Risk factors for delay in chemotherapy are older age, low albumin, and high age-adjusted Charlson comorbidity score
  • Delay in chemotherapy is associated with a shorter progression-free survival.

Abstract

Objective

The objective of this study was to identify preoperative characteristics of patients that experience a delay in initiation of adjuvant chemotherapy after primary debulking surgery for ovarian cancer.

Materials/methods

We performed a retrospective review of patients with Stage II to IV high-grade epithelial ovarian, tubal, and peritoneal carcinoma who underwent primary debulking surgery followed by adjuvant chemotherapy from 2005 to 2013. Patients were divided into 2 groups: Control (those who received their first cycle of chemotherapy within 6 weeks of debulking surgery) vs. chemotherapy delay (those who received their first cycle of chemotherapy at an interval >6  weeks from primary debulking surgery). Relevant clinical variables and survival outcomes were compared between the 2 groups using standard statistical methods.

Results

A total of 221 patients were included in the analyses – 169 (76.5%) were in the control group and 52 (23.5%) were in the chemo delay group. On multi-variate analysis, risk factors that were significantly associated with a delay in initiation in chemotherapy included: age >65, albumin <3.5, and high age-adjusted Charlson Comorbidity Index score. Delay in chemotherapy initiation was associated with a shorter progression-free (p = 0.014) but not overall survival (p = 0.19).

Conclusions

Delay in initiation of chemotherapy affected 23.5% of patients in our study population. Easily identifiable risk factors for chemotherapy delay exist that can help us pre-operatively identify patients for which neoadjuvant chemotherapy may be a better treatment option. Further study into prospective modeling with these identified risk factors is warranted.

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