<![CDATA[Background: Breast cancer is the most common malignancy in women, with a mortality rate of 13.0 cases per 100,000 women worldwide. Modified Radical Mastectomy (MRM) is the treatment of breast malignancy that is still operable. After MRM surgery, a suction drain is routinely used to drain the serous fluid that builds up, with a high negative pressure which is expected to drain accumulated fluid and reduce dead space, but this drain also causes obstruction of closure of injured lymph vessels and causes an increase in the amount of fluid coming out of the wound. This study aims to provide an overview of the comparison of the total drain volume in post-MRM breast cancer patients using a full negative pressure Songket suction drain incision design with suction at Dr. Mohammad Hoesin General Hospital Palembang. Methods: The characteristics of the sample will be presented in tabular form and narrated. Dichotomous variables will be analyzed by Chi-square test, while continuous variables will be analyzed by T-test if the data is normally distributed and Mann-Whitney if the data is not normally distributed. All analyzes used the SPSS version 23 computer program. Significance was determined based on the p-value < 0.05. Results: The Mann-Whitney test statistic found a significant difference in the total amount of fluid collected in the two groups (p=0.010), while there was no significant difference in length of stay between the two groups (p=1,000). Conclusion: there was a difference in the length of stay of patients after surgery between full and half negative pressure, with a p-value = 0.001.]]>
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