Publications by authors named "Susanna Nazarian"

The objective of the study was to use a deep learning model to differentiate between benign and malignant sentinel lymph nodes (SLNs) in patients with breast cancer compared to radiologists' assessments.Seventy-nine women with breast cancer were enrolled and underwent lymphosonography and contrast-enhanced ultrasound (CEUS) examination after subcutaneous injection of ultrasound contrast agent around their tumor to identify SLNs. Google AutoML was used to develop image classification model.

View Article and Find Full Text PDF

Objectives: This study evaluated the efficacy of lymphosonography in the identification of sentinel lymph nodes (SLNs) in post neoadjuvant chemotherapy patients with breast cancer scheduled to undergo surgical excision.

Methods: Seventy-nine subjects scheduled for breast cancer surgery with SLN excision completed this IRB-approved study, out of which 18 (23%) underwent neoadjuvant chemotherapy before surgery. Subjects underwent percutaneous Sonazoid (GE Healthcare) injections around the tumor area for a total of 1.

View Article and Find Full Text PDF

The objective of the work described here was to evaluate the efficacy of lymphosonography in identifying sentinel lymph nodes (SLNs) in patients with breast cancer undergoing surgical excision. Of the 86 individuals enrolled, 79 completed this institutional review board-approved study. Participants received subcutaneous 1.

View Article and Find Full Text PDF

Unlabelled: Risk factors for cytomegalovirus (CMV) viremia in CMV seropositive liver transplant recipients are incompletely defined and have focused primarily on recipient factors. We hypothesized that active CMV replication (CMV viremia) in seropositive donors might increase the risk for CMV viremia in recipients, as reported for other viruses in organ transplantation.

Methods: From January 3, 2009, to July 27, 2015, stored plasma from consecutive CMV seropositive liver donors was retrospectively tested for CMV viremia by PCR.

View Article and Find Full Text PDF

Purpose: The 21-gene recurrence score (RS) is an established predictor of recurrence for early stage, hormone receptor positive breast cancer. The association between RS and other risk factors such as obesity has not been fully explored. We hypothesized that patients with obesity may present with primary breast cancers with higher recurrence scores.

View Article and Find Full Text PDF

The medical needs of the transgender population are increasingly recognized within the US health care system. Hormone therapy and gender-affirming surgery present distinct anatomic, hormonal, infectious, and psychosocial issues among transgender kidney transplant donors and recipients. We present the first reported experience with kidney transplantation and donation in transgender patients.

View Article and Find Full Text PDF
Article Synopsis
  • The study compares outcomes of early-stage HER2+ breast cancer patients treated with adjuvant chemotherapy (AC) versus neoadjuvant chemotherapy (NAC).
  • A cohort of 1,254 patients was analyzed, showing that those receiving AC had better disease-free and overall survival rates compared to the NAC group, particularly in achieving pathologic complete response (pCR).
  • Overall, both treatment methods led to excellent outcomes for patients, indicating that the sequence of chemotherapy may not significantly impact survival rates.
View Article and Find Full Text PDF

Background: Prior to the advent of Oncotype DX 21-gene recurrence score (oDX) assay, the National Comprehensive Cancer Network (NCCN) guideline supported omission of adjuvant chemotherapy in patients with ≤ 1 cm (T1b) hormone receptor-positive (HR +), human epidermal growth factor receptor 2 (HER2-) node tumors. However, around 30% of these patients would have an oDX recurrence score that warrants consideration of adjuvant chemotherapy. To clarify the potential benefit of oDX in these patients, we performed a retrospective analysis comparing clinical outcomes of women with T1a or T1b, N0 HR + HER2- according to performance of oDX.

View Article and Find Full Text PDF

Hospital readmissions after liver transplantation (LT) are common and associated with increased morbidity and cost. High readmission rates at our center motivated a change in practice with adoption of a nurse practitioner (NP)-based posttransplant care program. We sought to determine if this program was effective in reducing 30- and 90-day readmissions after LT and to identify variables associated with readmission.

View Article and Find Full Text PDF

Background: A patient's impression of quality of care is strongly influenced by pain management.

Materials And Methods: We sought to understand the process of pro re nata (PRN) pain medication administration through direct observation and use of timestamped data from the electronic medical record (EMR). The total time from nurse notification to administration was compared between PRN narcotics, non-narcotic pain, and nonpain medications.

View Article and Find Full Text PDF

Background: Organs from hepatitis C virus (HCV)-infected deceased donors are often discarded. Preliminary data from 2 small trials, including THINKER-1 (Transplanting Hepatitis C kidneys Into Negative KidnEy Recipients), suggested that HCV-infected kidneys could be safely transplanted into HCV-negative patients. However, intermediate-term data on quality of life and renal function are needed to counsel patients about risk.

View Article and Find Full Text PDF

Background: Kidney transplant induction therapy often includes inpatient administration of rabbit antithymocyte globulin (rATG) over multiple days. To reduce hospital length of stay (LOS) and drug expenditures, the rATG induction course was completed in the outpatient setting via peripheral intravenous administration. The present study assesses early readmission trends ascribable to an outpatient rATG administration protocol to ensure initial reduction in hospital LOS is sustained early after discharge.

View Article and Find Full Text PDF

The presence of sex disparity in living donor kidney transplantation (LDKT) remains controversial. To determine if women fall behind men in LDKT evaluation, we performed an intention to treat study of 2587 candidates listed for kidney transplant at a single transplant center over 7 years. We found that women and men kidney transplant candidates engaged an equivalent type and number of prospective living donors.

View Article and Find Full Text PDF

Kidney transplant recipients often receive antibody induction. Previous studies of induction therapy were often limited by short follow-up and/or absence of information about complications. After linking Organ Procurement and Transplantation Network data with Medicare claims, we compared outcomes between three induction therapies for kidney recipients.

View Article and Find Full Text PDF

Background: Persistent thromboxane (TX) generation while receiving aspirin therapy is associated with an increased risk of cardiovascular events. The Reduction in Graft Occlusion Rates (RIGOR) study found that aspirin-insensitive TXA2 generation, indicated by elevated urine 11-dehydro-TXB2 (UTXB2) 6 months after coronary artery bypass graft surgery, was a potent risk factor for vein graft thrombosis and originated predominantly from nonplatelet sources. Our goal was to identify risks factors for nonplatelet TXA2 generation.

View Article and Find Full Text PDF

Background: In this study, we present our experience with ureteral complications requiring revision surgery after renal transplantation and compare our results to a matched control population.

Methods: We performed a retrospective analysis of our database between 1997 and 2012. We divided the cases into early (<60 d) and late repairs.

View Article and Find Full Text PDF
Article Synopsis
  • * Graft survival rates were high (98% at 1 year, 80% at 5 years), but 70% of patients experienced rejection, mainly cell-mediated, with 47% developing transplant glomerulopathy (TxGN).
  • * Key findings indicated that glomerulitis and donor-specific antibodies increased the risk of TxGN, highlighting the importance of early monitoring for signs of microvascular inflammation.
View Article and Find Full Text PDF

Background: The correlation between histopathologic phenotypes and allograft outcomes among patients desensitized for donor-specific antibody (HLA-incompatible) is unknown.

Methods: We analyzed 1-year biopsies from desensitized recipients transplanted between 1999 and 2010 and estimated graft survival for each histologic phenotype identified. Median time posttransplant for the 1-year biopsy was 367 days (interquartile range 357-388 days) and median follow-up of all patients post-1-year biopsy was 42 months (interquartile range 19.

View Article and Find Full Text PDF

Background: Subclavian vein thrombosis (SVT) is usually caused by vigorous activity or extensive use of the upper extremity. Patients are tested for hypercoagulability if they present with a spontaneous clot unassociated with such activity. The objective of this study was to determine the prevalence of hypercoagulability in patients undergoing first rib resection and scalenectomy presenting with SVT.

View Article and Find Full Text PDF

Objective: To review cutting-edge, novel, implemented and potential translational research and to provide a glimpse into rich, innovative, and brilliant approaches to everyday surgical problems.

Data Sources: Scientific literature and unpublished results.

Study Selection: Articles reviewed were chosen based on innovation and application to surgical diseases.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session3dmejpujpt8ourf7rvv92qacdvek864e): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once