Radiation recall phenomenon after administration of the mRNA-1273 SARS-CoV-2 vaccine

Several types of SARS-CoV-2 vaccine have been developed. However, the relationship between SARS-CoV-2 vaccine and radiation therapy (RT) is unclear. Recently, there have been some reports of radiation recall phenomenon (RRP) caused by a SARS-CoV-2 vaccine. We report a case of RRP after administration of the mRNA-1273 SARS-CoV-2 vaccine. A 51-year-old female was diagnosed with breast cancer (cT4N1M0, cStage IIIB) and underwent breast total mastectomy with axillary lymph node dissection after neoadjuvant chemotherapy. After mastectomy, the patient received RT with 50 Gy in 25 fractions. An acute side effect of grade 2 dermatitis according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 4.0. occurred after RT. The patient had not started any new systemic medication after RT; however, the patient received the mRNA-1273 SARS-CoV-2 vaccine (Moderna) 1 month after the end of the initial RT. Seven days after vaccination, the patient had a skin reaction with burning sensation and redness. This skin reaction was induced in an area corresponding to the irradiation field of the chest wall. There was no skin reaction in areas other than that described. The reaction was cured within 1 week with topical hydrocortisone. This report is an interesting case report with a RPP after administration of the mRNA-1273 SARS-CoV-2 vaccine.

Prognosis Comparison Between Nipple-Sparing Mastectomy and Total Mastectomy in Breast Cancer: A Case-Control Study After Propensity Score Matching

Background Currently, the operation rate of nipple-sparing mastectomy (NSM) is increasing. However, the long-term prognosis of NSM is not well documented. We utilized the Surveillance, Epidemiology, and End Results (SEER) database to analyze the long-term prognosis of NSM compared with total mastectomy (TM). Methods Population-level data of female breast cancer patients treated with NSM and TM were extracted from 1998 to 2016 from the SEER database. Propensity score matching (PSM) was performed to reduce the influence of selection bias and confounding variables in comparisons. Kaplan-Meier analysis, log-rank test, and Cox proportional hazard regression were performed. Results A total of 5765 patients underwent NSM, which increased from 266 in 2004–2009 to 5370 in 2010–2016. A total of 134,528 patients underwent TM, and the number of patients undergoing TM continued to decline. The overall survival (OS) and breast cancer-specific survival (BCSS) were similar between the NSM group and the TM group (P = 0.058 and 0.87, respectively). For OS, subgroup analysis showed that patients with age ≥ 46, White race, median household income ≥ $70,000, hormone receptor-positive, and HER2 negative had a better prognosis for treatment with NSM. There was no significant difference in BCSS between the NSM group and the TM group. Conclusions In recent years, the clinical application of NSM has been increasing. NSM is a proper procedure for breast cancer patients to achieve long-term survival.

Perioperative sleep disturbance following mastectomy: A longitudinal investigation of the relationship to pain, opioid use, treatment, and psychosocial symptoms.

192 Background: Sleep disturbance negatively impacts quality of life and recovery. Our objective was to evaluate the relationship between individual patient factors (demographic, surgical, pain, opioid use, and psychosocial factors) and greater sleep disturbance. Methods: In this prospective longitudinal study, patients completed validated measures regarding their sleep disturbance, pain, opioid use, and psychological symptoms preoperatively and then 2 weeks, 6 and 12 months postoperatively. Objective pain sensitivity measures were evaluated at baseline using quantitative sensory testing. Univariable and multivariable generalized estimating equations (GEE) evaluated demographic, surgical, pain, and psychological predictors of sleep disturbance during the first year after surgery for breast cancer. Results: Female patients (n = 259) reported varying degrees of sleep disturbance, which were longitudinally associated with pain, psychosocial factors such as anxiety, depression, and affect. While the mean degree of sleep disturbance did not change substantially over time, the link to pain severity appeared to strengthen over the first postoperative year. Independent preoperative predictors of worse sleep disturbance on multivariable longitudinal GEE included younger age (B = -.09, p =.006), opioid use (B = 3.09, p =.02), higher pain (B =.19, p = <.001) and anxiety (B =.45, p = <.001) at baseline. On the other hand, higher basline positive affect (B = -.14, p = <.012) and the surgical category total mastectomy without reconstruction (B = -2.81, p = <.006) were indepently associated with lower sleep disturbance. Those with worse baseline sleep required more opioid analgesics during surgical recovery, and continued use of opioids at 2 weeks post-surgery was associated with disturbed sleep. Conclusions: Sleep disturbance in the first year following surgery for breast cancer varied substantially between individuals. Certain demographic, psychosocial, and pain factors explained more of this variance than surgical procedure, with the exception of total mastectomy without reconstruction that was associated with lower sleep disturbance. Sleep disturbance was associated with increased need for opioids in the perioperative period, and a propensity for more prolonged postoperative opioid use. Pre-surgical interventions in high risk individuals such as anxiety management, boosting positive affect, and controlling pain that have been shown to improve sleep quality could enhance postoperative recovery and decrease opioid use following breast surgery.

Contralateral Prophylactic Mastectomy Improves Survival Only Marginally in Patients with Unilateral Triple-Negative Breast Cancer: A Cohort Study Based on SEER Database

Background: The effect of contralateral prophylactic mastectomy (CPM) on the survival rate of triple-negative breast cancer (TNBC) patients is still controversial. The purpose of this study was to confirm whether unilateral TNBC patients benefit from CPM.Methods: 10006 patients with unilateral TNBC in the Surveillance, Epidemiology and End Results (SEER) database were enrolled in this study, propensity score matching (PSM) was applied to balance patient assignments. After PSM,3039 pairs of patients were divided into a CPM group and no-CPM group, respectively. All the patients have undergone total mastectomy or radical mastectomy. Cox proportional hazards regression models were used to evaluate overall survival (OS) and breast cancer-specific survival (BCSS) of the two groups. Subgroup analysis was introduced to exclude the effect of confounding factors. To identify potential variables for prognosis, Kaplan–Meier survival analysis and Cox regression analysis were used and were presented by Kaplan–Meier curve and forest plot separately.Results: With a median follow‐up time of 34.5months (IQR 1–83 months), the estimated 5-year BCSS rates for patients in the CPM group and the no-CPM group were 81.96% and 78.71%, the 5-year OS rates were 80.10% and 75.05%, respectively. CPM improved the BCSS (hazard ratio [HR]= 0.79; 95% confidence interval [CI]=0.69-0.90, p=0.001) and OS (HR= 0.74; 95% CI=0.66-0.84, p<0.001) of unilateral TNBC patients. Univariate subgroup analyses revealed that there was no significant difference in survival time for patients in stage N3 who underwent CPM or not (p>0.05).Conclusions: CPM only limitedly improved BCSS and OS in patients with unilateral TNBC undergoing total mastectomy or radical mastectomy and was not recommended for stage N3 patients.

Anaesthetic management using remimazolam in a patient with severe aortic stenosis: a case report

Background The administration of general anaesthesia in patients with aortic stenosis (AS) requires careful attention to haemodynamics. We used remimazolam for the induction and maintenance of anaesthesia in a woman with severe AS undergoing a total mastectomy. Case presentation An 81-year-old woman with severe AS was scheduled to undergo a total mastectomy. We decided to administer total intravenous anaesthesia with remimazolam to minimize haemodynamic changes. Although the patient showed transient hypotension after anaesthesia induction, the cardiac index was preserved with a low dose of continuous noradrenaline. The anaesthesia was then safely maintained without a decrease in the patient’s cardiac index. Conclusions General anaesthesia using remimazolam preserved cardiac output in this patient; therefore, remimazolam can be safely used to avoid the risk of cardiac suppression in patients with severe AS.

Prediction of seroma after total mastectomy using an artificial neural network algorithm

Seroma is a common complication after mastectomy. To the best of our knowledge, no prediction models have been developed for this. Henceforth, medical records of total mastectomy patients were retrospectively reviewed. Data consisting of 120 subjects were divided into a training-validation data set (96 subjects) and a testing data set (24 subjects). Data was learned by using a 9-layer artificial neural network (ANN), and the model was validated using 10-fold cross-validation. The model performance was assessed by a confusion matrix in the validating data set. The receiver operating characteristic curve was constructed, and the area under the curve (AUC) was also calculated. Pathology type, presence of hypertension, presence of diabetes, receiving of neoadjuvant chemotherapy, body mass index, and axillary lymph node (LN) management (i.e., sentinel LN biopsy and axillary LN dissection) were selected as predictive factors in a model developed from the neural network algorithm. The model yielded an AUC of 0.760, which corresponded with a level of acceptable discrimination. Sensitivity, specificity, accuracy, and positive and negative predictive values were 100%, 52.9%, 66.7%, 46.7%, and 100%, respectively. Our model, which was developed from the ANN algorithm can predict seroma after total mastectomy with high sensitivity. Nevertheless, external validation is still needed to confirm the performance of this model.

Local treatment for triple-negative breast cancer patients undergoing chemotherapy: breast-conserving surgery or total mastectomy?

Background Because there is no exact therapeutic target, the systemic treatment of triple-negative breast cancer (TNBC) still relies on chemotherapy. In terms of local treatment, based on the highly malignant characteristics of TNBC, it is still uncertain whether patients should be given more aggressive local treatment. Methods This study was based on the SEER database. 13,262 TNBC patients undergoing chemotherapy were included. According to local treatment methods, patients were divided into breast-conserving surgery with radiotherapy (BCS + RT), total mastectomy alone and total mastectomy with radiotherapy (Mastectomy+RT). Kaplan-Meier survival analysis drew the survival curves of Overall Survival (OS) and Breast Cancer Specific Survival (BCSS), and Cox proportional risk regression models were used to analyze the impact of different local treatments on OS and BCSS. Results After adjusting confounding factors, Mastectomy alone group (HR = 1.57; 95%CI: 1.40–1.77) and Mastectomy+RT group (HR = 1.28; 95%CI: 1.12–1.46) were worse in OS than BCS + RT group, and Mastectomy+RT group (HR = 0.81; 95%CI: 0.73–0.91) was better in OS than Mastectomy alone group. The effect of local treatment for BCSS was similar to that of OS. After stratification according to age, tumor size and lymph node status, when the age was less than 55 years old, at T4, N2 or N3 category, there was no statistical significance between the BCS + RT group and the Mastectomy+RT group in OS or BCSS (all P > 0.05). When the age was less than 65 years old, at T1, T2 or N0 category, there was no statistical significance between the Mastectomy alone group and the Mastectomy+RT group in OS or BCSS (all P > 0.05). The results of other stratified analyses were basically consistent with the results of total population analysis. Conclusion The survival benefit of breast-conserving surgery with radiotherapy was higher than or similar to that of total mastectomy TNBC patients.

Breast Cancer Treatment in a Patient with Decubitus Ulcer Infection Secondary to Spina Bifida: Surgical Resection versus Neoadjuvant Chemotherapy

Spina bifida (SB) is a congenital neural tube defect that often presents with neurological disability and decubitus ulcers. A 66-year-old woman with SB presented to our hospital with decubitus ulcers and was treated by a plastic surgeon. She was referred to our department because of a mass measuring 5 × 4 cm in the superolateral quadrant of the right breast. The size of the right axillary lymph node (LN) was 2 × 1 cm. A core-needle biopsy revealed an invasive ductal carcinoma. Total mastectomy and axillary LN dissection were planned. However, 2 days prior to surgery, the size of the mass and the LN rapidly increased to 7 × 4 cm and 3 × 2 cm, respectively. Furthermore, the enlarged LN was close to the thoracodorsal artery. Since complete resection was difficult, neoadjuvant chemotherapy was also administered. On day 11 of neoadjuvant chemotherapy, the patient was febrile and developed a decubitus ulcer infection at the buttock. The neutrophil count was within normal limits; thus, she was not diagnosed with febrile neutropenia. Follow-up computed tomography revealed a shrinking of the mass to 5 × 4 cm after the first cycle of neoadjuvant chemotherapy. After 17 days of antibiotic therapy and drainage, total mastectomy and axillary LN dissection were performed. Due to the risk of recurrence of infection, adjuvant chemotherapy was discontinued and hormone therapy was initiated. In conclusion, indications for chemotherapy should be carefully evaluated in SB patients with lower limb paralysis and decubitus ulcers.

PRIMARY UNDIFFERENTIATED PLEOMORPHIC SARCOMA OF BREAST IN A 24 YEAR FEMALE : A CASE REPORT

Undifferentiated pleomorphic sarcoma constitutes less than 5 % of all sarcomas in adults and has been rarely seen in the breast and is dened as a group of pleomorphic, high-grade sarcomas in which any attempt to disclose their line of differentiation has failed . Most undifferentiated pleomorphic sarcomas(UPS) have occurred in their sixth and seventh decades of life and very rarely in adolescents and adults. We report a case of 24 year old female presented with painless lump in right breast and rapidly increasing in size for last 5 months. Iinitial diagnosis was made as sarcoma breast on the basis of physical and radiological examination. After that total mastectomy was done without axillary lymph node dissection, as lymphatic spread is very rare. But without histopathological examination and most importantly IHC-panel, it is impossible to make a denitive diagnosis of UPS breast.

High-grade ductal carcinoma in-situ detected by microcalcification within borderline phyllodes tumour: A report of a case and literature review

BackgroundPhyllodes tumour is a rare biphasic neoplasm of the breast that mostly affects middle aged women. Ductal carcinoma in-situ and microcalcifications occurring within phyllodes tumours are documented but are rare findings. Primary surgical excision with adjuvant therapies remains the mainstay of treatment.Case presentationWe report a case of a 42-year-old woman with high-grade ductal carcinoma in-situ within a borderline phyllodes tumour. Radiologically, clumps of microcalcification were detected within the lesion. Local excision followed by total mastectomy with axillary dissection was then performed. No tumour recurrence was detected up to a period of 8 years.ConclusionPresence of microcalcifications within a phyllodes tumour should alert clinicians and pathologists of possible coexisting carcinoma components. Stromal and epithelial components of these lesions should be evaluated separately when formulating a management plan.