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Shawki, Sherief S.

Mayo Clinic

Mayo Clinic

Citations 2

Surgical management of small bowel adenocarcinoma in Crohn disease: a multicenter retrospective analysis
Violante, Tommaso , Ferrari, Davide, Rottoli, Matteo , Novelli, Marco, Aboelmaaty, Sara , Gomaa, Ibrahim A. , Sassun, Richard, Sileo, Annaclara , Shawki, Sherief S., Wignakumar, Anjelli , Dourado, Justin, Syed, Ajia, Wexner, Steven, Calini, Giacomo, Castagna, Giovanni , Isopi, Claudio , Holubar, Stefan, Alipouriani, Ali , Unal, Ece , Mathis, Kellie L. , Calini, Giacomo , Violante, Tommaso , Novelli, Marco , Sassun, Richard , Aboelmaaty, Sara A, Gomaa, Ibrahim , Sassun, Richard , Sileo, Annaclara , Holubar, Stefan D , Alipouriani, Ali , Mathis, Kellie L , Calini, G , Ferrari, Davide , Larson, David W. , Shawki, Sherief , Dourado, Justin , Wexner, Steven, Greco, Nicola Maria , Holubar, Stefan D.

Inflammatory Bowel Diseases | December 3, 2025 | Volume: 32 | Issue: 5 | Pages: 914-921

10.1093/ibd/izaf312 Get It

Abstract Background Patients with Crohn disease (CD) face an elevated risk of developing small bowel adenocarcinoma (SBA), a malignancy characterized by late-stage diagnosis and poor prognosis. In this study we aimed to characterize surgical management and oncologic outcomes for CD-associated SBA. Methods A retrospective review was conducted across 3 tertiary IBD centers, analyzing 99 patients with CD who underwent surgery for SBA between 1992 and 2025. Data included patient demographics, CD history, surgical details, and oncologic outcomes. Results The median time from CD diagnosis to SBA was 25 years. The SBA diagnosis was incidental in 74.8% of cases, discovered during surgery for other complications. Tumors were predominantly located in the ileum (80.8%) and showed aggressive features: 56.6% were poorly differentiated (grade 3), and 85.9% were pathologically advanced (T3/T4 on TNM staging). Nodal involvement was present in 45.5% of patients, and 18.2% had distant metastases at diagnosis. A complete (R0) resection was achieved in 90.9% of surgeries, with a 30-day morbidity rate of 26.3%. After a median follow-up of 36 months, the distant recurrence rate was 28.3%, and overall mortality was 27.3% (18.2% cancer related). Conclusion In patients with long-standing CD, SBA is typically an incidental diagnosis made at an advanced stage. While high rates of complete surgical resection are possible, the prognosis remains guarded due to aggressive tumor biology and high recurrence rates. These findings highlight a critical need for improved risk stratification to guide surveillance and for the development of evidence-based adjuvant treatment strategies.
Evaluating the Impact of Robotic Ileal Pouch-anal Anastomosis
Violante, Tommaso , Novelli, Marco , Perry, William , Mathis, Kellie L. , Dozois, Eric J. , Merchea, Amit , Shawki, Sherief S., Perry, William R., Violante, Tommaso , Perry, William R , Ferrari, Davide , Behm, Kevin T. , Shawki, Sherief , Larson, David W.

Annals of Surgery | September 5, 2024 | Volume: 283 | Issue: 3 | Pages: 513-518

10.1097/sla.0000000000006524 Get It

Objective: To compare robotic-assisted proctectomy with ileal pouch-anal anastomosis (R-IPAA) outcomes and laparoscopic proctectomy with IPAA within a specialized robotic surgery center, using matching techniques to minimize potential confounding factors. Background: Minimally invasive approaches, particularly laparoscopy, have improved outcomes for patients with inflammatory bowel disease and familial adenomatous polyposis undergoing IPAA. Robotic-assisted surgery offers potential technical advantages, but its definitive superiority over laparoscopy in this context remains under debate. Methods: This retrospective, “Strengthening the Reporting of Observational Studies in Epidemiology”–compliant study analyzed 234 consecutive patients undergoing IPAA (117 robotic and 117 laparoscopic). Data encompassed patient demographics, intraoperative details, and postoperative outcomes. We employed various matching techniques to address potential bias. Primary endpoints focused on 30-day complications, readmissions, and reoperations, with secondary endpoints including hospital stay, blood loss, and stoma closure rates. Results: R-IPAA demonstrated a lower conversion rate to open surgery ( P = 0.02), a shorter hospital stay ( P = 0.04), and reduced blood loss ( P = 0.0003) compared with laparoscopic proctectomy with IPAA. While overall 30-day morbidity rates were similar ( P = 0.4), matched analyses suggested a trend towards fewer reoperations and 3-month IPAA-associated complications after diverting loop ileostomy closure in the robotic group. However, these differences did not reach statistical significance. Conclusions: In a high-volume robotic surgery center, R-IPAA reduced the risk of conversion to open surgery while reducing intraoperative blood loss and providing shorter lengths of stay with equivalent perioperative outcomes. Promising trends to reduce 30-day reoperations and surgical complications after diverting loop ileostomy closure were observed after a matching analysis.