Oriana D. Cohen

Oriana D. Cohen


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 November 2025 in Cancers
Verified
Journal Article
Open access
PDF file
TSThomas Sorenson
Thomas Sorenson
CBCarter J Boyd
Carter J Boyd
OCOriana D. Cohen
Oriana D. Cohen
MCMihye Choi
Mihye Choi
NKNolan S. Karp
Nolan S. Karp
Patients requiring breast reconstruction following radiation therapy or prior failed autologous breast reconstruction (ABR) or implant-based breast reconstruction (IBBR) represent a challenging cohort and often present with compromised vascularity, scarred anatomy, and subsequent increased rates of complications. In this review, we discuss microsurgical strategies designed to optimize donor tissue in these challenging clinical scenarios, including the use of stacked or bipedicled flaps, and the utility of intraoperative indocyanine green angiography. We also review approaches to alternate recipient vessel selection in the suboptimal chest, and we address specific strategies for the revision setting, like soft tissue support and hybrid reconstruction with ABR and IBBR. By synthesizing the current literature and expert experience, this narrative review provides a practical framework for microsurgeons managing complex breast reconstruction in higher-risk patients.

Verified
Journal Article
Open access
PDF file
JPJenn Park
Jenn Park
CBCarter J Boyd
Carter J Boyd
KHKshipra Hemal
Kshipra Hemal
TSThomas Sorenson
Thomas Sorenson
CAChris Amro
Chris Amro
NKNolan S. Karp
Nolan S. Karp
Background: Nipple-sparing mastectomy (NSM), given demonstrated oncologic safety, is widely used for both therapeutic and prophylactic mastectomy. The popularity of NSM has spurred advancements by breast and plastic surgeons, liberalizing the indications for NSM and improving patient and aesthetic reconstructive outcomes. This review explores these developments and establishes up-to-date surgical tenets for successful NSM and reconstruction. Methods: A comprehensive literature review was conducted using the PubMed, Google Scholar, and Cochrane Library databases, focusing on peer-reviewed studies published up to 2024. Articles were selected based on relevance, quantity, and documentation of clinical outcomes and patient satisfaction. Results: NSM is utilized frequently for both invasive breast cancers and prophylactic mastectomy, with expanded criteria for candidacy by breast surgeons. Staged procedures such as adjunct reduction, mastopexy, or nipple delay allow patients with larger or ptotic breasts to undergo NSM with comparable outcomes. Long-term outcome studies have identified important risk factors for complications, including smoking history, higher mastectomy weight, certain medical comorbidities, and suboptimal mastectomy flaps. Evolutions in reconstructive decision making in direct-to-implant and staged tissue expander placement have improved aesthetic results while accounting for poor mastectomy flap quality or adjuvant therapy. Long-term outcomes show NSM remains safe and has comparable rates of local recurrence. Patient-reported outcomes demonstrate satisfaction with NSM, especially in sexual and psychological wellbeing metrics. Conclusions: NSM has been demonstrated to be safe in long-term oncologic outcomes. Its widespread popularity over the past ten years has helped identify methods to improve upon surgical and aesthetic outcomes, including decision-making in reconstruction; considerations for challenging patient-related characteristics such as macromastia, ptosis, and NAC asymmetry; and novel advances in areas such as neurotization.

1 April 2024 in Annals of Plastic Surgery
Verified
Journal Article
Closed access
KHKshipra Hemal
Kshipra Hemal
SPSofia Bs Perez-Otero
Sofia Bs Perez-Otero
CBCarter J Boyd
Carter J Boyd
KWKatie E. Weichman
Katie E. Weichman
OCOriana D. Cohen
Oriana D. Cohen
DCDaniel J Ceradini
Daniel J Ceradini
Background Plastic surgery training has undergone tremendous change and transitioned through many models over the years, including independent, combined, and integrated. This study evaluates how these changes and others have affected plastic surgery applicants' demographics and academic qualifications over the last 30 years. Methods Data on applicant demographics and academic qualifications were extracted from multiple sources including the National Resident Matching Program, the American Association of Medical Colleges, and cross-sectional surveys of plastic surgery applicants for the years 1992, 2005, 2011, and 2022. Data were compared using pairwise χ2 goodness of fit tests. Results The sex distribution of plastic surgery applicants changed significantly over the last 30 years: whereas men predominated in 1992 (86% male vs 14% female), by 2011, the distribution was nearly equal (54% male vs 46% female in both 2011 and 2022, P < 0.001). The racial makeup of applicants also changed over time (P < 0.05). White applicants decreased from 73% in 1992 to 55% in 2011, and 53% in 2022. While there was an increase in Asian (7% to > 17% to > 20%) and other (13% to > 14% to > 21%) applicants over time, whereas the proportion of Black applicants remained stagnant (5% to > 6% to > 8%). Applicants with prior general surgery experience declined precipitously over the years: 96% in 1992, 64% in 2005, 37% in 2011, and 26% in 2022 (P < 0.001). When compared with 1992, Alpha Omega Alpha status increased significantly in 2011 (36% vs 12%, P < 0.05) but did not change considerably in 2005 (22%) and 2022 (23%). Research experience increased dramatically over the years, with the proportion of applicants with at least one publication going from 43% in 1992, to 75% in 2005, to 89% in 2011, and to 99% in 2022 (P < 0.001). Applicant interest in academic plastic surgery did not change considerably over the years at roughly ranging from 30% to 50% of applicants (P = ns). Conclusions There has been a shift in the demographics and academic qualifications of plastic surgery applicants over the last 3 decades. Understanding this evolution is critical for reviewing and evaluating the makeup of our specialty, and enacting changes to increase representation where necessary.

12 September 2025 in Preprints.org
Verified
Preprint
Open access
PDF file
TSThomas Sorenson
Thomas Sorenson
CBCarter J Boyd
Carter J Boyd
OCOriana D. Cohen
Oriana D. Cohen
MCMihye Choi
Mihye Choi
NKNolan S. Karp
Nolan S. Karp
Patients requiring breast reconstruction following radiation therapy or prior failed autologous breast reconstruction (ABR) or implant-based breast reconstruction (IBBR) represent a challenging cohort and often present with compromised vascularity, scarred anatomy, and subsequent increased rates of complications. In this review, we discuss microsurgical strategies designed to optimize donor tissue in these challenging clinical scenarios, including the use of stacked or bipedicled flaps, and the utility of intraoperative indocyanine green angiography. We also review approaches to alternate recipient vessel selection in the suboptimal chest, and we address specific strategies for the revision setting, like soft tissue support and hybrid reconstruction with ABR and IBBR. By synthesizing current literature and expert experience, this review provides a practical framework for microsurgeons managing complex breast reconstruction in higher-risk patients.

20 November 2025 in Aesthetic Plastic Surgery
Verified
Journal Article
Closed access
PDF file
TSThomas Sorenson
Thomas Sorenson
LRLauren Romanowski
Lauren Romanowski
CBCarter J. Boyd
Carter J. Boyd
KHKshipra Hemal
Kshipra Hemal
MCMihye Choi
Mihye Choi
OCOriana D. Cohen
Oriana D. Cohen

19 October 2026 in Plastic and Reconstructive Surgery
Verified
Journal Article
Closed access
TSThomas J Sorenson
Thomas J Sorenson
RLRebecca Lisk
Rebecca Lisk
CBCarter J Boyd
Carter J Boyd
KHKshipra Hemal
Kshipra Hemal
MCMihye Choi
Mihye Choi
OCOriana D. Cohen
Oriana D. Cohen
Background: Obesity is associated with increased complications following reduction mammoplasty (RM). Preoperative weight loss is commonly recommended to reduce surgical risk, although it remains unclear whether obese patients who have recently lost weight experience outcomes comparable to their weight-stable obese counterparts. This study evaluated the impact of recent preoperative weight loss on postoperative outcomes following RM. Methods: Epic COSMOS was used to identify obese patients undergoing RM. Patients who lost ≥5% body weight within two years before surgery were compared with weight-stable controls. Postoperative complications were assessed. Propensity score matching and multivariable regression were used to adjust for covariates. Results: After matching, 7,874 patients were included in each cohort. Patients with substantial (>10% body weight) weight loss demonstrated highest risk of surgical site infection [SSI] (aOR 1.26; 95% CI 1.04 – 1.52) and more than double the risk of hospital readmission (aOR 2.09, 95% CI 1.31 – 3.25). Independent of weight loss, severe morbid obesity (BMI 40–50) was associated with increased risk of SSI (aOR 1.77, 95% CI 1.48 – 2.1), wound dehiscence (aOR 2.24, 95% CI 1.81 – 2.77), fat necrosis (aOR 1.51; 95% CI 1.11-2.01), and ED revisit (aOR 1.49, 95% CI 1.21 – 1.82). Conclusion: In obese patients, preoperative weight loss exceeding 10% of body weight was associated with higher odds of SSI and hospital readmission following RM compared with weight-stable obese counterparts. Given the observational design and unmeasured factors including nutritional status and frailty, no broader inference regarding the effect of preoperative weight loss on surgical risk is drawn.