Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic Type
This study aimed to evaluate the prognostic significance of tumor regression rate according to radiation phase and histologic subtype in patients with locally advanced cervical cancer (LACC) treated with chemoradiation. We retrospectively reviewed the medical records of 398 patients with FIGO stage...
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| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Journal of Clinical Medicine |
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| Online Access: | https://www.mdpi.com/2077-0383/9/11/3471 |
| _version_ | 1797549619902676992 |
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| author | Jun-Hyeok Kang Won Kyung Cho Hie Jun Yeo Soo Young Jeong Joseph J. Noh Jung In Shim Yoo-Young Lee Tae-Joong Kim Jeong-Won Lee Byoung-Gie Kim Duk-Soo Bae Won Park Chel Hun Choi |
| author_facet | Jun-Hyeok Kang Won Kyung Cho Hie Jun Yeo Soo Young Jeong Joseph J. Noh Jung In Shim Yoo-Young Lee Tae-Joong Kim Jeong-Won Lee Byoung-Gie Kim Duk-Soo Bae Won Park Chel Hun Choi |
| author_sort | Jun-Hyeok Kang |
| collection | DOAJ |
| description | This study aimed to evaluate the prognostic significance of tumor regression rate according to radiation phase and histologic subtype in patients with locally advanced cervical cancer (LACC) treated with chemoradiation. We retrospectively reviewed the medical records of 398 patients with FIGO stage IIB-IVA cervical cancer treated with concurrent chemoradiotherapy (CCRT) between 2001 and 2019. Tumor response was assessed using serial magnetic resonance imaging (MRI) at three time points: pre-treatment, post-external beam radiotherapy (EBRT), and post-intracavitary radiotherapy (ICR). Tumor regression pattern according to histologic subtype and radiation phase (EBRT and ICR) was evaluated. Overall survival (OS) and progression-free survival (PFS) were the primary outcomes. Of 398 patients, 44 patients had adenocarcinoma/adenosquamous carcinoma (AC/ASC) and 354 patients had squamous cell carcinoma (SCC). AC/ASC was associated with significantly worse PFS and OS than SCC (<i>p</i> < 0.001). AC/ASC had a relatively poorer regression rate in response to EBRT than SCC (<i>p</i> < 0.001), whereas there was no significant difference in overall tumor regression rate after completion of RT (EBRT and ICR) between the two histologic subtypes. Multivariable analysis demonstrated AC/ASC histology to be an independent prognostic factor of decreased PFS and OS. Moreover, tumor regression rate after completion of EBRT (post-EBRT tumor regression rate (EBRT<sub>regression</sub> ≤ 26%) and proportion of tumor regression during EBRT to overall tumor regression (EBRT<sub>proportion</sub> ≤ 40%) were independent predictors of poor survival in patients with LACC. Tumor regression pattern of LACC in response to CCRT differs according to histologic subtype. AC/ASC histology and poor tumor response to EBRT are independent prognostic factors for worse survival in patients with LACC. Further studies are needed to develop a CCRT protocol that is specialized for patients with AC/ASC. |
| first_indexed | 2024-03-10T15:17:12Z |
| format | Article |
| id | doaj.art-c15d5f3bb3b44b6296ffee4304e92925 |
| institution | Directory Open Access Journal |
| issn | 2077-0383 |
| language | English |
| last_indexed | 2024-03-10T15:17:12Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Clinical Medicine |
| spelling | doaj.art-c15d5f3bb3b44b6296ffee4304e929252023-11-20T18:51:31ZengMDPI AGJournal of Clinical Medicine2077-03832020-10-01911347110.3390/jcm9113471Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic TypeJun-Hyeok Kang0Won Kyung Cho1Hie Jun Yeo2Soo Young Jeong3Joseph J. Noh4Jung In Shim5Yoo-Young Lee6Tae-Joong Kim7Jeong-Won Lee8Byoung-Gie Kim9Duk-Soo Bae10Won Park11Chel Hun Choi12Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaDepartment of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, KoreaThis study aimed to evaluate the prognostic significance of tumor regression rate according to radiation phase and histologic subtype in patients with locally advanced cervical cancer (LACC) treated with chemoradiation. We retrospectively reviewed the medical records of 398 patients with FIGO stage IIB-IVA cervical cancer treated with concurrent chemoradiotherapy (CCRT) between 2001 and 2019. Tumor response was assessed using serial magnetic resonance imaging (MRI) at three time points: pre-treatment, post-external beam radiotherapy (EBRT), and post-intracavitary radiotherapy (ICR). Tumor regression pattern according to histologic subtype and radiation phase (EBRT and ICR) was evaluated. Overall survival (OS) and progression-free survival (PFS) were the primary outcomes. Of 398 patients, 44 patients had adenocarcinoma/adenosquamous carcinoma (AC/ASC) and 354 patients had squamous cell carcinoma (SCC). AC/ASC was associated with significantly worse PFS and OS than SCC (<i>p</i> < 0.001). AC/ASC had a relatively poorer regression rate in response to EBRT than SCC (<i>p</i> < 0.001), whereas there was no significant difference in overall tumor regression rate after completion of RT (EBRT and ICR) between the two histologic subtypes. Multivariable analysis demonstrated AC/ASC histology to be an independent prognostic factor of decreased PFS and OS. Moreover, tumor regression rate after completion of EBRT (post-EBRT tumor regression rate (EBRT<sub>regression</sub> ≤ 26%) and proportion of tumor regression during EBRT to overall tumor regression (EBRT<sub>proportion</sub> ≤ 40%) were independent predictors of poor survival in patients with LACC. Tumor regression pattern of LACC in response to CCRT differs according to histologic subtype. AC/ASC histology and poor tumor response to EBRT are independent prognostic factors for worse survival in patients with LACC. Further studies are needed to develop a CCRT protocol that is specialized for patients with AC/ASC.https://www.mdpi.com/2077-0383/9/11/3471histologic subtypelocally advanced cervical cancerconcurrent chemoradiotherapyregressionsurvival |
| spellingShingle | Jun-Hyeok Kang Won Kyung Cho Hie Jun Yeo Soo Young Jeong Joseph J. Noh Jung In Shim Yoo-Young Lee Tae-Joong Kim Jeong-Won Lee Byoung-Gie Kim Duk-Soo Bae Won Park Chel Hun Choi Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic Type Journal of Clinical Medicine histologic subtype locally advanced cervical cancer concurrent chemoradiotherapy regression survival |
| title | Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic Type |
| title_full | Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic Type |
| title_fullStr | Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic Type |
| title_full_unstemmed | Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic Type |
| title_short | Prognostic Significance of Tumor Regression Rate during Concurrent Chemoradiotherapy in Locally Advanced Cervix Cancer: Analysis by Radiation Phase and Histologic Type |
| title_sort | prognostic significance of tumor regression rate during concurrent chemoradiotherapy in locally advanced cervix cancer analysis by radiation phase and histologic type |
| topic | histologic subtype locally advanced cervical cancer concurrent chemoradiotherapy regression survival |
| url | https://www.mdpi.com/2077-0383/9/11/3471 |
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