Abstract:

Objective

To investigate the superiority and inferiority of porous silica tube and traditional gauze in ultrasound-guided incision and drainage for mammary ductal ectasia abscess.

Methods

The clinical data of totally 152 cases of mammary ductal ectasia abscess treated in the Third People's Hospital of Chengdu City from August 2012 to November 2014 were retrospectively analyzed. According to the principle of 1 ∶1 paired study (age ± 2.0 years, time of onset ± 2.0 months, the largest diameter of abscess ± 2.0 cm), we screened 30 cases receiving ultrasound-guided porous silica tube drainage as the experimental group, 30 cases receiving traditional gauze drainage as the control group. After operation, the patients' pain in the first dressing change, incision length, average time of daily dressing, wound healing time and incision retraction in two groups were recorded. Measurement data including incision length and wound healing time were analyzed using Wilcoxon rank sum test, and the rates of incision retraction were compared using paired χ² test.

Results

In the experimental group, the pain caused by the first dressing change was significantly lower than that of the control group [M(Q_R): 5.0 (1.0) vs 7.0 (2.3), Z=3.355, P＜0.001],so were average incision length[M(Q_R):1.5 (0.6) cm vs 2.2 (1.1) cm, Z=4.375, P＜0.001], average time of daily dressing [M(Q_R):5.3 (2.0) min vs 6.3 (2.5) min, Z=4.564, P＜0.001], and the incision retraction rate [23.3%(7/30) vs 63.3%(19/30),χ²=7.563, P=0.004]. There was no significant difference in wound healing time between the experimental group and the control group [M(Q_R): 50.0 (11.8) d vs 51.5 (20.8) d, Z=0.164, P=0.870].

Conclusion

Ultrasound-guided porous silica tube drainage can reduce the patients pain in dressing change, simplify the procedure, save the time and improve the cosmetic effect of incision in the treatment of mammary ductal ectasia abscess.

Key words: Mastitis, Abscess, Surgery, Drainage