Factors Predicting Microinvasion in Ductal Carcinoma in situ

Background: Whether sentinel lymph node biopsy (SLNB) should be performed in patients with pure ductal carcinoma in situ (DCIS) of the breast has been a question of debate over the last decade. The aim of this study was to identify factors associated with microinvasive disease and determine the criteria for performing SLNB in patients with DCIS. Materials and Methods: 125 patients with DCIS who underwent surgery between January 2000 and December 2008 were reviewed to identify factors associated with DCIS and DCIS with microinvasion (DCISM). Results: 88 patients (70.4%) had pure DCIS and 37 (29.6%) had DCISM. Among 33 DCIS patients who underwent SLNB, one patient (3.3%) was found to have isolated tumor cells in her biopsy, whereas 1 of 14 (37.8%) patients with DCISM had micrometastasis (7.1%). Similarly, of 16 patients (18.2%) with pure DCIS and axillary lymph node dissection (ALND) without SLNB, none had lymph node metastasis. Furthermore, of 20 patients with DCISM and ALND, only one (5%) had metastasis. In multivariate analysis, the presence of comedo necrosis [relative risk (RR)=4.1, 95% confidence interval (CI)=1.6-10.6, P=0.004], and hormone receptor (ER or PR) negativity (RR=4.0, 95% CI=1.5-11, P=0.007), were found to be significantly associated with microinvasion. Conclusions: Our findings suggest patients presenting with a preoperative diagnosis of DCIS associated with comedo necrosis or hormone receptor negativity are more likely to have a microinvasive component in definitive pathology following surgery, and should be considered for SLNB procedure along with patients who will undergo mastectomy due to DCIS

Amiodarone induced thyrotoxicosis may not respond to therapeutic plasma exchange like patients with graves disease: A report of two cases and literature review

The achievement of euthyroid state has been suggested in patients with thyrotoxicosis undergoing surgery to reduce the risk of thyroid storm. However, euthyroid state could not always be achieved by antithyroid drugs. Therefore, therapeutic plasma exchange (TPE) is an option in this condition. A 58-year-old male patient with a history of type-2 diabetes using 200 mg amiodarone per day, admitted for diabetic ketoacidosis (DKA), induced by thyrotoxicosis. with palpitation, sweating, polyuria, and polydipsia. Euthyroid state could not be achieved, despite all apropriate treatments for thyrotoxicosis. Therefore, preparation with TPE followed by total thyroidectomy was planned. A 35% decrease in fT3 (free T3) and fT4 (free T4) levels were achieved, after two sessions of TPE. A 74-year-old male patient, admitted for acute anterior myocardial infarction (AMI) induced by thyrotoxicosis due to Graves disease. Multiple vessel disease was detected on primer percutanous coronary angiography, and an emergency coronary artery bypass grafting (CABG) was planned. Therefore, preperation with TPE was planned before surgery. A substential decrease in fT4 and fT3 levels (45% and 72%, respectively) levels were achieved, after one session of TPE. Most of the studies evaluating the efficacy of TPE in patients with thyrotoxicosis are including patients with Graves disease and toxic multinodular goiter, and TPE was indicated as an effective option for preparation of these patients for surgery. However, as presented in case 1, TPE may not be effective in amiodarone induced thyrotoxicosis (AIT) as in cases with thyrotoxicosis due to Graves disease. [Med-Science 2019; 8(1.000): 233-6

THE FACTORS EFFECTING MORTALITY IN STAGE 1 BREAST CANCER

Introduction: The incidence of stage 1 breast cancer has been increasing with screening mammography and awareness of breast cancer. However, some patients with early stage breast cancer have been died due to the recurrence of disease. The aim of this study was to examine the factors effecting the mortality in patients with stage 1 breast cancer