A recent study compared two types of mastectomies: the conventional nipple-sparing mastectomy (NSM) and keyhole methods (using endoscopic or robotic approaches) [1] Conducted across five tertiary hospitals in Taiwan, the study involved 73 conventional NSM cases and 160 keyhole NSM of which 84 cases used endoscopic approach and 76 cases with robotic assistance. Here’s what it revealed about the pros and cons of these methods.
Keyhole surgeries, also known as minimal access surgeries, involve making small incisions and using specialised long thin instruments e.g. a wand-like camera to assist with the procedures. These methods are common in abdominal and pelvic keyhole surgeries, where they have revolutionised care by reducing post-operative pain, recovery times and complications[2]. In breast surgery, however, keyhole approaches are still evolving and has not replaced the conventional NSM as the standard of care.
The study revealed several key points[1]:
To date, conventional mastectomy remains the standard of care due to the following reasons:
Globally, mastectomy rates vary widely due to differences in healthcare practices, cultural attitudes, access to reconstructive surgery and alternative treatments like breast-conserving surgery (BCS) and radiotherapy.
For average-risk women in USA, overall mastectomy rates are 31% with a rising trend of double mastectomies of up to 49% in certain states[3][4]. Such a trend was not observed in Europe, as reported by an Italian study where mastectomy rates have remained stable at 34% with no increase in women opting for double mastectomies[5]. In Singapore – mastectomy rates have remained consistently high over the past two decades. A review over a 10-year period in a single institution from 2001 to 2010 reported mastectomy rates remained high throughout the period, varying between 43% and 59%[6]. Separately another review from another local institution reported 70% of patients treated during the same period underwent mastectomy with a low rate (1.25%) of double mastectomies[7].
Mastectomy is often necessary for women with large tumours or widespread cancer within the breast. However, advances in cancer screening and treatment have reduced the need for mastectomy in many cases. In Singapore, most breast cancers diagnosed today are small (under 2 cm)[8], making breast-conserving surgery (removing the tumour while preserving the breast) a welcoming option for most patients.
For larger cancers, modern therapies like pre-surgery treatments (neoadjuvant therapy) can shrink tumours, allowing many women to avoid mastectomy altogether[9][10]. On the other hand, genetic testing has led to greater awareness and a trend of more healthy but at-risk women considering double mastectomies as a preventive strategy to lower their cancer risk[11].
Increasingly, surgeons have focused on concealing scars wherever possible during conventional mastectomies. Dr. Esther Chuwa from Solis Breast Care & Surgery emphasises, “Surgical scars are a necessity with any surgery: most patient are able to accept that. But by placing incisions in well-hidden areas like the skin folds beneath the breast, we can minimise its visibility while ensuring that oncologic safety is maintained. This approach contributes immensely to patients feeling more confident and hopeful during their recovery as visually, they are not constantly reminded of their diagnosis”
This approach ensures that oncologic principles, including adequate tumour removal, are not compromised while simultaneously addressing the patient’s aesthetic and emotional concerns. Considering these factors plays a significant role in enhancing the emotional well-being and overall recovery of breast cancer patients.
While keyhole surgeries offer smaller scars and potentially better wound healing, conventional mastectomy remains a trusted and effective choice for breast cancer surgery. As technology advances, keyhole approaches may gain momentum in replacing the conventional approach as the standard of care, but for now, the conventional approach continues to deliver excellent outcomes for most patients.
The future of breast surgery is bright, with ongoing research exploring new tools and techniques to improve care. Whether through minimal access or conventional methods, the goal remains the same: safe, effective, and personalised treatment for every patient.
*Article contributed and reviewed by Dr Esther Chuwa, Senior Consultant and Breast Surgeon at Solis Breast Care & Surgery Centre.
