Ultrasound-Guided Percutaneous Catheter Drainage of Large Breast Abscesses in Lactating Women: How to Preserve Breastfeeding Safely

Mastitis and Mammary Abscess Management Audit (MAMMA) in the UK and Ireland

BACKGROUND

The aim of this multicentre prospective audit was to describe the current practice in the management of mastitis and breast abscesses in the UK and Ireland, with a specific focus on rates of surgical intervention.

METHODS

This audit was conducted in two phases from August 2020 to August 2021; a phase 1 practice survey and a phase 2 prospective audit. Primary outcome measurements for phase 2 included patient management pathway characteristics and treatment type (medical/radiological/surgical).

RESULTS

A total of 69 hospitals participated in phase 2 (1312 patients). The key findings were a high overall rate of incision and drainage (21.0 per cent) and a lower than anticipated proportion of ultrasound-guided aspiration of breast abscesses (61.0 per cent). Significant variations were observed regarding the rate of incision and drainage (range 0-100 per cent; P < 0.001) and the rate of needle aspiration (range 12.5-100 per cent; P < 0.001) between individual units. Overall, 22.5 per cent of patients were admitted for inpatient treatment, out of whom which 72.9 per cent were commenced on intravenous antibiotics. The odds of undergoing incision and drainage for a breast abscess or being admitted for inpatient treatment were significantly higher if patients presented at the weekend compared with a weekday (P ≤ 0.023). Breast specialists reviewed 40.9 per cent of all patients directly, despite the majority of patients (74.2 per cent) presenting within working hours on weekdays.

CONCLUSIONS

Variation in practice exists in the management of mastitis and breast abscesses, with high rates of incision and drainage in certain regions of the UK. There is an urgent need for a national best-practice toolbox to minimize practice variation and standardize patient care.

Application of arthroscopic system in the treatment of lactational breast abscess

Purpose

Optimal treatment of breast abscesses has been controversial. Herein, we report an innovative method for the operative treatment of lactational mammary abscesses.

Methods

Nineteen lactating patients diagnosed with breast abscesses were enrolled in the study, and abscess debridement and drainage were performed using an arthroscopic system. The clinical characteristics of the patients were recorded to evaluate the feasibility, efficacy, and cosmetic results of arthroscopic surgery for breast abscesses.

Results

All 19 patients were cured and did not relapse within the 6-month-follow-up period. One patient stopped breastfeeding due to breast leakage. All patients were satisfied with the postoperative appearance of the breast.

Conclusion

Arthroscopic debridement and drainage are effective treatment methods for lactational breast abscesses, with a high cure rate, few complications, and satisfactory cosmetic outcomes.

Maintaining Breastfeeding During the Treatment of Breast Abscesses Is Not Contraindicated

Background: World Health Organization guidelines recommend maintaining breastfeeding if a woman develops breast abscess, because of benefits to her recovery and the infant's health. However, clinical staff recommend weaning to promote faster recovery from the abscess. The purpose of this study was to determine whether maintaining breastfeeding after development of a breast abscess has any influence on the resolution of the breast abscess. Methods: The records of 212 patients who were breastfeeding and developed breast abscess treated at Guangzhou Women and Children's Medical Center from January 2018 to December 2019 were retrospectively reviewed. Patients were divided into two groups: those who maintained breastfeeding (study group) and those who stopped breastfeeding (control group). Results: There were 139 patients in study group and 73 patients in the control group. Baseline characteristics were similar between the two groups. The time to cure in the study group and in the control group was 7.20 ± 2.21 days and 7.01 ± 2.39 days, respectively (t = 0.579, p = 0.563). Common complications were milk fistula and galactocele, and the frequency of both was similar between the two groups (milk fistula: 7.9% versus 8.2%, respectively; χ² = 0.006, p = 0.938; galactocele: 8.6% versus 9.6%, respectively; χ² = 0.054, p = 0.817). There was no significant difference in the recurrence rates between the two groups (5.0% versus 2.7%; χ² = 0.184, p = 0.668). Conclusion: Maintaining breastfeeding during treatment of breast abscess does not affect the outcome of treatment provided, on condition that the abscess is treated appropriately.

Efficacy and Prognosis of Ultrasound-Guided Percutaneous Catheter Drainage in Patients with Liver Abscess Complicated with Septic Shock

Objective

Currently, the therapeutic effect and outcomes of US-PCD in patients with liver abscess and septic shock remain unclear. This study is aimed at investigating the effects of ultrasound-guided percutaneous catheter drainage (US-PCD) on the prognosis of patients with liver abscess complicated with septic shock.

Method

We retrieved and assessed the data of 120 patients with liver abscess complicated with septic shock diagnosed at our hospital from January 2019 to March 2021. The patients underwent US-PCD in the observation group or conventional surgical incision and drainage in the control group. After treatment, we determined the levels of liver function indicators alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBIL), direct bilirubin (DBIL), and alkaline phosphatase (ALP) as well as the levels of inflammatory cytokines IL-6, IL-8, and TNF-α in serum using ELISA on postoperative days 0, 2, 4, and 6. The postoperative body temperature recovery, peripheral white blood cell count recovery, extubation, postoperative length of stay, and complications were recorded, with a 12-month follow-up to calculate their survival rate.

Results

After treatment, the ALT, AST, TBIL, DBIL, and ALP levels and inflammatory factor levels in the two groups were gradually reduced over time and returned to the normal range with a better recovery trend in the observation group. US-PCD was associated with better postoperative body temperature recovery, peripheral white blood cell count recovery, shorter extubation time, hospital stay, lower postoperative rate, and a higher survival rate.

Conclusion

US-PCD may be effective in treating liver abscess and can significantly improve the prognosis of patients.

Abscess Drainage with or Without Antibiotics in Lactational Breast Abscess: Study Protocol for a Randomized Controlled Trial

Background

Lactational breast abscess, a complication from lactational mastitis, is a common cause of breastfeeding discontinuation. No consensus has been reached regarding the necessity of antibiotics in this disease. The purpose of this trial is to determine if surgical drainage is non-inferior to drainage together with a standard course of antibiotics, in the treatment of lactational breast abscess.

Methods

Breastfeeding females with breast abscess from 18 to 50 years old are eligible for study inclusion. An expected number of 306 patients will be randomly allocated in parallel to the intervention arm (simple drainage without antibiotics) or the control arm (abscess drainage with standard 5-day-course of antibiotics). The primary outcomes include the time to resolution of breast abscess and disease recurrence rate. Secondary outcomes of interests are 3-day-improvement proportion, rate of continuing breastfeeding, treatment failure rate, procedural-related complications, and length of hospital stay. An expected non-inferiority margin for the difference in the primary outcome of interest is set at 1 day, on the basis of a one-sided 97.5% confidence interval.

Discussion

This trial will provide first-hand evidence on whether simple abscess drainage is non-inferior to drainage together with a standard course of antibiotics, in lactational mothers with breast abscess. The indication of antibiotic prophylaxis could be revised if non-inferiority is set up, and guidelines for lactational breast abscess require amendments correspondingly.

Trial Registration

This study has been registered in the Chinese Clinical Trial Registry, and the trial registration number is ChiCTR1900024008.

Breast abscesses in lactating women: evidences for ultrasound-guided percutaneous drainage to avoid surgery

BACKGROUND

Surgical incision with drainage remains the first-line therapy recommendation for breast abscesses greater than 5 cm.

PURPOSE

To determine recovery with ultrasound guided (US-guided) procedures for treatment of lactational breast abscesses without surgical incision for drainage.

MATERIAL AND METHODS

Institutional review board approval and written informed patient consent were obtained for this retrospective study. From May 1, 2009, to June 1, 2018, 92 consecutive women (mean age 30 years, range 18-45) with 105 abscesses were treated with oral antibiotics and US-guided percutaneous drainage under local anesthesia. A total number of 202 US-guided procedures were performed. Three techniques were used: needle aspiration (diameter 18 to 14G), pigtail catheter insertion (diameter 5 to 7F), and/or vacuum-assisted biopsy/aspiration (diameter 10G). When using needle aspiration or pigtail catheter, a saline irrigation of the cavity was performed according to pus viscosity.

RESULTS

The median diameter of abscesses was 4.5 cm (range 1-15), 82/105 (78%) were larger than 3 cm and 40/105 (38%) larger than 5 cm. US-guided management was successful for 101/105 (96%; 95% CI, (91-99%)) abscesses regardless the size. After the first round of procedures, 49/105 (47%) abscesses were recovered, 56/105 (53%) needed more than one drainage with a median number drainages of 2.6 (2-6). In 4/105 cases (4%), women underwent additional surgery under general anesthesia. By excluding abscesses which occurred in the weaning phase (n = 17), breastfeeding carried on for 68/75 (91%) women.

CONCLUSION

Unlike previous studies, US percutaneous guided management of lactational abscesses is effective even for abscesses greater than 5 cm and allows continued breastfeeding.

Breast Ultrasound during Lactation: Benign and Malignant Lesions

Background

Structural changes during lactation make breast physical examination difficult. When breast problems occur, patients are often referred for an ultrasound (US) scan. Most breast lesions diagnosed in these patients are benign, but the diagnosis of breast cancer is a challenge. We aim to demonstrate the spectrum of US imaging findings in lactating women.

Methods

77 breastfeeding patients who underwent breast US in our department between February 2012 and March 2017 were evaluated. Patients' electronic medical records were reviewed for the presenting complaint, US reports, pathology results if available, and clinical/radiologic follow-up. All examinations were performed by 2 radiologists.

Results

28 of the 77 patients had normal US findings. Cysts were seen in 16 patients. 4 patients had stable fibroadenomas. 6 patients had US imaging findings suggestive of mastitis, 5 patients had galactoceles, 1 patient had an abscess, and 1 patient had unilateral hypertrophy without any accompanying lesion. In 13 patients, BI-RADS 3 solid masses were diagnosed. Invasive breast cancer was diagnosed in 3 patients.

Conclusion

US can demonstrate or exclude a true mass against the background of a nodular breast parenchyma. Radiologists must be aware of malignant US features to avoid delays in the diagnosis of pregnancy-associated breast cancer.