Araştırma Makalesi

Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer?

Cilt: 9 Sayı: 1 30 Nisan 2025
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Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer?

Öz

Aim: The prognostic significance of tumor laterality has been explored in various solid malignancies, with varying findings across differ ent cancer types. This study investigated the potential for predicting treatment response rates based on cancer laterality in patients with HER2-positive breast cancer undergoing neoadjuvant therapy. Material and Methods: A retrospective analysis was conducted on 115 patients diagnosed with HER2-positive breast cancer who underwent neoadjuvant therapy at the Department of Medical Oncology, Kocaeli University Hospital between January 2018 and March 2023. Results: The median age of the patients was 49 years (range 41–59 years), with no significant difference in age distribution between the right and left breast tumors (p = 0.704). The study group was composed of 54.8% right breast tumor sand 45.2% left breast tumors. The distribution of primary tumors across quadrants in both breasts did not show a significant difference (p = 0.659). When examining the response to neoadjuvant therapy, no patient exhibited progression during treatment. Complete response rates were 81% and 80.8% for right-sided and left-sided breast tumors, respectively, and partial response rates were 12% and 10%, respectively. There was no statistical significance observed in treatment responses based on tumor location side (p = 1.000). During follow-up, 9.6% of patients developed metastasis. Conclusion: This study highlights the lack of significant differences in treatment response rates and metastasis development based on tumor laterality in HER2-positive breast cancer patients receiving neoadjuvant therapy. Further research is needed to identify potential predictive factors for treatment response in this patient population.

Anahtar Kelimeler

Kaynakça

  1. 1. Siegel RL, Miller KD, Jemal A. Cancer statistics, 2019. CA: A Cancer Journal for Clinicians. 2019;69(1):7-34.
  2. 2. Siegel RL, Giaquinto AN, Jemal A. Cancer statistics, 2024. CA: A Cancer Journal for Clinicians. 2024;74(1):12-49.
  3. 3. Goldhirsch A, Winer EP, Coates AS, Gelber RD, Piccart-Geb hart M, Thürlimann B, Senn HJ; Panel members. Personal izing the treatment of women with early breast cancer: high lights of the St Gallen International Expert Consensus on the Primary Therapy of Early Breast Cancer 2013. Ann Oncol. 2013;24(9):2206-2223.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Klinik Onkoloji

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

30 Nisan 2025

Gönderilme Tarihi

17 Ağustos 2024

Kabul Tarihi

2 Mart 2025

Yayımlandığı Sayı

Yıl 2025 Cilt: 9 Sayı: 1

Kaynak Göster

APA
Bakkal Temi, Y., Peynirci, M., Çabuk, D., Kefeli, U., & Uygun, K. (2025). Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer? Medical Journal of Western Black Sea, 9(1), 90-97. https://doi.org/10.29058/mjwbs.1534649
AMA
1.Bakkal Temi Y, Peynirci M, Çabuk D, Kefeli U, Uygun K. Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer? Med J West Black Sea. 2025;9(1):90-97. doi:10.29058/mjwbs.1534649
Chicago
Bakkal Temi, Yasemin, Mahmut Peynirci, Devrim Çabuk, Umut Kefeli, ve Kazım Uygun. 2025. “Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer?”. Medical Journal of Western Black Sea 9 (1): 90-97. https://doi.org/10.29058/mjwbs.1534649.
EndNote
Bakkal Temi Y, Peynirci M, Çabuk D, Kefeli U, Uygun K (01 Nisan 2025) Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer? Medical Journal of Western Black Sea 9 1 90–97.
IEEE
[1]Y. Bakkal Temi, M. Peynirci, D. Çabuk, U. Kefeli, ve K. Uygun, “Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer?”, Med J West Black Sea, c. 9, sy 1, ss. 90–97, Nis. 2025, doi: 10.29058/mjwbs.1534649.
ISNAD
Bakkal Temi, Yasemin - Peynirci, Mahmut - Çabuk, Devrim - Kefeli, Umut - Uygun, Kazım. “Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer?”. Medical Journal of Western Black Sea 9/1 (01 Nisan 2025): 90-97. https://doi.org/10.29058/mjwbs.1534649.
JAMA
1.Bakkal Temi Y, Peynirci M, Çabuk D, Kefeli U, Uygun K. Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer? Med J West Black Sea. 2025;9:90–97.
MLA
Bakkal Temi, Yasemin, vd. “Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer?”. Medical Journal of Western Black Sea, c. 9, sy 1, Nisan 2025, ss. 90-97, doi:10.29058/mjwbs.1534649.
Vancouver
1.Yasemin Bakkal Temi, Mahmut Peynirci, Devrim Çabuk, Umut Kefeli, Kazım Uygun. Does Tumor Laterality Influence Response to Neoadjuvant Chemotherapy in HER2-Positive Breast Cancer? Med J West Black Sea. 01 Nisan 2025;9(1):90-7. doi:10.29058/mjwbs.1534649

Batı Karadeniz Tıp Dergisi, Zonguldak Bülent Ecevit Üniversitesi tarafından yayımlanan, uluslararası, hakemli ve açık erişimli bir dergidir. İlk sayısı 2017 yılında yayımlanan dergi, yılda üç kez (Nisan, Ağustos ve Aralık aylarında) yayımlanmakta olup Türkçe ve İngilizce makalelere yer verir.