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Comparative Study of Distant Metastasis after Quadrantectomy and Modified Radical Mastectomy in Breast Cancer Measuring 40 mm or Less

دراسة مقارنة للانتقالات البعيدة بعد استئصال الثدي الربعي و استئصال الثدي الجذري المعدل في سرطانات الثدي القنوية الغازية ذات القطر 40 ملم أو أقل

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 Publication date 2014
  fields Medicine
and research's language is العربية
 Created by Shamra Editor




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Background& Objective: Determining the risk of distant metastasis in invasive breast cancer patients with lesions measuring 40 mm or less, and comparing the risk between quadrantectomy with axillary dissection and modified radical mastectomy with axillary dissection. Materials & Methods: The study was performed prospectively by evaluating a random sample of invasive breast cancer patients with lesions measuring 40 mm or less, who presented to Al-Byroni University Hospital in Damascus during one year between 9/8/2009 and 9/8/2010. Results: Ninety-four breast cancer patients were evaluated. The median age of patients was 54 years. Excisional biopsy was the most common diagnostic tool (41%), and frozen section was used in 27% of patients. The tumor was located in the upper lateral quadrant in 65% of patients. The tumor was in stage one in only 13% of cases, and most tumors were in stage II (63%). Modified radical mastectomy with axillary dissection was performed in 62 patients (66%), and quadrantectomy with axillary dissection was performed in 32 patients (34%). The patients were followed for up to 18 months. Distant metastasis were observed in 8 patients (13%) from the first group and 6 patients (19%) of the second group. Conclusion: There is no important difference of risk of distant metastasis after modified radical mastectomy or quadrantectomy in breast cancer lesions measuring 40 mm or less. We recommend quadrantectomy as the first-line surgical treatment for breast cancer when indicated.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة مقارنة بين نسبة حدوث الانتقالات البعيدة بعد استئصال الثدي الربعي واستئصال الثدي الجذري المعدل لدى مريضات مصابات بسرطان الثدي القنوي الغازي الذي يبلغ قطره 40 ملم أو أقل. أجريت الدراسة على 94 مريضة في مستشفى البيروني الجامعي بدمشق خلال عام كامل من 9 أغسطس 2009 إلى 9 أغسطس 2010. كانت النتائج تشير إلى عدم وجود فروق مهمة في نسبة حدوث الانتقالات البعيدة بين الطريقتين الجراحيتين، حيث كانت نسبة الانتقالات البعيدة 13% في مجموعة الاستئصال الجذري المعدل و19% في مجموعة الاستئصال الربعي. بناءً على هذه النتائج، توصي الدراسة باستخدام استئصال الثدي الربعي كخيار جراحي أول إذا كان الورم يحقق الاستطبابات المحددة لهذا التداخل.
Critical review
دراسة نقدية: على الرغم من أهمية هذه الدراسة في تقديم معلومات حول فعالية استئصال الثدي الربعي مقارنة باستئصال الثدي الجذري المعدل، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، مدة المتابعة كانت قصيرة نسبياً (18 شهراً)، مما قد يؤثر على دقة النتائج المتعلقة بالانتقالات البعيدة. ثانياً، حجم العينة كان محدوداً (94 مريضة)، مما قد يؤثر على تعميم النتائج. ثالثاً، لم يتم تناول العوامل الأخرى التي قد تؤثر على نسبة حدوث الانتقالات البعيدة مثل العلاجات المتممة (الكيميائية، الشعاعية، والهرمونية) بشكل كافٍ. وأخيراً، كان من الأفضل تضمين مجموعة مقارنة من الدراسات العالمية لزيادة موثوقية النتائج.
Questions related to the research
  1. ما هي نسبة حدوث الانتقالات البعيدة في مجموعة الاستئصال الجذري المعدل؟

    كانت نسبة حدوث الانتقالات البعيدة في مجموعة الاستئصال الجذري المعدل 13%.

  2. ما هي مدة المتابعة التي تم استخدامها في الدراسة؟

    كانت مدة المتابعة في الدراسة تصل إلى 18 شهراً.

  3. ما هو العمر الوسطي للمريضات المشاركات في الدراسة؟

    كان العمر الوسطي للمريضات المشاركات في الدراسة 54 سنة.

  4. ما هي التوصية النهائية للدراسة بشأن الخيار الجراحي الأول؟

    توصي الدراسة باستخدام استئصال الثدي الربعي كخيار جراحي أول إذا كان الورم يحقق الاستطبابات المحددة لهذا التداخل.


References used
Althuis MD, Dozier JM, Anderson WF, et al. Global trends in breast cancer incidence and mortality 1973– 1997. Int J Epidemiol. 2005;34(2):405–412
(Weir R, Day P, Ali W. Risk factors for breast cancer in women. NZHTA Report 2007;10(2
Touboul E, Buffat L, Belkacémi Y, et al. Local recurrences and distant metastases after breast-conserving surgery and radiation therapy for early breast cancer. Int J Radiat Oncol. 1999;43(1): 25-38
Engela J, Eckela R, Kerra J, et al. The process of metastasisation for breast cancer. Eur J Cancer. 2003; 1794–1806
Solomayer EF, Diel IJ, Meyberg GC, et al. Metastatic breast cancer: clinical course, prognosis and therapy related to the first site of metastasis. Breast Cancer Res Treat 2000;59: 271-8
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