探讨改良负压封闭引流（VSD）装置在乳腺癌改良根治术后腋窝引流的临床价值。

前瞻性纳入2021年1月至2023年12月接受乳腺癌改良根治术的108例患者，采用区组随机化法由独立统计人员通过SPSS 25.0生成随机序列将患者按1:1分配至改良组和对照组，每组患者各54例。改良组采用改良VSD装置引流，对照组采用传统硅胶负压引流球引流。SPSS 25.0软件进行数据分析，肿瘤部位等计数资料以[例（%）]表示，采用χ²检验或Fisher精确概率法行组间比较；符合正态分布的肩关节活动情况等计量资料用（±s）描述，采用独立样本t检验。P<0.05为差异具有统计学意义。

改良组患者术后肩关节前屈、外展、内收及后伸活动度均显著优于对照组（P<0.05）。改良组患者拔管时间、总引流量及引流管堵塞率均显著低于对照组，而切口甲级愈合率显著提高（P<0.05）。改良组患者并发症总发生率（5.6%）较对照组（18.5%）显著降低（P<0.05）。

接受改良根治术的乳腺癌患者术后腋窝引流的临床应用中，改良VSD装置获得了较好的临床效果，其不仅显著提升了肩关节活动度和切口甲级愈合率，还显著缩短了置管天数、减少了总引流量、降低了引流管堵塞率及并发症总发生率，具有较高的临床应用价值。

To investigate the clinical value of a modified vacuum sealing drainage (VSD) device in axillary drainage after modified radical mastectomy for breast cancer.

A total of 108 patients who underwent modified radical mastectomy for breast cancer from January 2021 to December 2023 were prospectively enrolled. Using a block randomization method, independent statisticians generated random sequences via SPSS 25.0 to allocate patients at a 1:1 ratio into a modified group and a control group, with 54 patients in each group. The modified group received drainage using the modified VSD device, while the control group received drainage using a traditional silicone negative pressure drainage ball. Statistical analysis was performed using SPSS 25.0. Enumeration data such as tumor location were expressed as [cases (%)], and intergroup comparisons were conducted using the χ² test or Fisher’s exact probability method. Measurement data conforming to normal distribution, such as shoulder joint mobility, were described by (±s), and independent sample t tests were used. P<0.05 was considered statistically significant.

The ranges of motion for postoperative shoulder joint flexion, abduction, adduction, and extension in the modified group were significantly better than those in the control group (P<0.05). The extubation time, total drainage volume, and drainage tube blockage rate in the modified group were significantly lower than those in the control group, while the first-class wound healing rate was significantly higher (P<0.05). The total incidence of complications in the modified group (5.6%) was significantly lower than that in the control group (18.5%) (P<0.05).

In the clinical application of axillary drainage after modified radical mastectomy for breast cancer, the modified VSD device has achieved favorable clinical effects. It not only significantly improves shoulder joint mobility and the first-class wound healing rate but also significantly shortens the indwelling catheter days, reduces the total drainage volume, and decreases the drainage tube blockage rate and the total incidence of complications, demonstrating high clinical application value.