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Hancock, Kevin

https://orcid.org/0000-0002-9041-0593

Mayo Clinic

Mayo Clinic in Florida

Citations 2

Multiple robotic stapler firings to transect the rectum are not associated with anastomotic leakage
Cardelli, Stefano , Stocchi, Luca , Merchea, Amit , DeLeon, Michelle , Mishra, Nitin , Hancock, Kevin , DeLeon, Michelle F, Hancock, Kevin J , Colibaseanu, Dorin , Larson, David W.

Colorectal Disease | May 3, 2025 | Volume: 27 | Issue: 5 | Pages: No page available

10.1111/codi.70094 Get It

AbstractAimThe relationship between the number of stapler firings (SFs) during robotic rectal transection and the risk of colorectal/coloanal anastomotic leakage (AL) is controversial. This study investigates whether the number of robotic SFs is associated with an increased risk of AL.MethodRetrospective review of adult patients who underwent robotic total mesorectal excision (TME) and partial mesorectal excision (PME) with double‐stapled colorectal or coloanal anastomosis for both benign and malignant colorectal diseases between 2015 and 2023 across three enterprise‐wide hospitals. Primary outcome: the effect of multiple SFs on postoperative AL rate among patients who underwent one, two, or three or more SFs. Secondary outcome: the effects of other potential risk factors on postoperative AL.ResultsOf 503 patients who underwent robotic colorectal resection with a double‐stapled anastomosis, 56 (11%) developed a postoperative AL. The number of SFs was not associated with the AL rate (p = 0.51): the univariable and multivariate analyses found no correlation between the AL rate and the increasing number of SFs required, compared with one SF as the reference (adjusted two SFs, OR = 1.1, 95% CI: 0.6–2.2, p = 0.77 vs. adjusted three or more SFs, OR = 0.98, 95% CI: 0.4–2.3, p = 0.96). On multivariate analysis, AL was strongly associated with male gender (OR = 2.5, 95% CI: 1.3–4.9, p = 0.005) and with TME versus PME (OR = 2.8, 95% CI: 1.5–5.5, p = 0.002).ConclusionThe number of robotic SFs for rectal transection is not correlated with postoperative AL.
Comparative Outcomes of Robotic Versus Open Proctectomy for Rectal Cancer at High Risk of Positive Circumferential Resection Margin
Cardelli, Stefano , Stocchi, Luca , Merchea, Amit , Colibaseanu, Dorin , DeLeon, Michelle , Mishra, Nitin , Hancock, Kevin , Larson, David W. , Colibaseanu, Dorin T , DeLeon, Michelle F, Hancock, Kevin J , Larson, David W

Diseases of the Colon & Rectum | August 6, 2024 | Volume: 67 | Issue: 11 | Pages: 1475-1484

10.1097/dcr.0000000000003466 Get It

BACKGROUND: Concerns persist regarding the effectiveness of robotic proctectomy compared with open proctectomy for locally advanced rectal cancer with a high risk of circumferential resection margin involvement. OBJECTIVE: Comparison of surrogate cancer outcomes after robotic versus open proctectomy in this subpopulation. DESIGN: Retrospective cohort study. SETTING: Three academic hospitals (Mayo Clinic Arizona, Florida, and Rochester) with data available through the Mayo Data Explorer platform. PATIENTS: Patients at high risk of circumferential resection margin involvement were selected on the basis of the MRI-based definition from the MERCURY I and II trials. MAIN OUTCOME MEASURES: Rate of pathologic circumferential resection margin involvement (≤1 mm), mesorectal grading, and rate of distal margin involvement. RESULTS: Out of 413 patients, 125 (30%) underwent open and 288 (70%) underwent robotic proctectomy. Open proctectomy was significantly associated with a greater proportion of cT4 tumors (39.3% vs 24.8%, p = 0.021), multivisceral/concomitant resections (40.8% vs 18.4%, p < 0.001), and less frequent total neoadjuvant therapy use (17.1% vs 47.1%, p = 0.001). Robotic proctectomy was less commonly associated with pathologic circumferential resection margin involvement (7.3% vs 17.6%, p = 0.002), including after adjustment for cT stage, neoadjuvant therapy, and multivisceral resection (OR 0.326; 95% CI, 0.157–0.670, p = 0.002). Propensity score matching for 66 patients per group and related multivariable analysis no longer indicated any reduction of circumferential positive margin rate associated with robotic surgery ( p = 0.86 and p = 0.18). Mesorectal grading was comparable (incomplete mesorectum in 6% robotic proctectomy patients vs 11.8% open proctectomy patients, p = 0.327). All cases had negative distal resection margins. LIMITATION: Retrospective design. CONCLUSIONS: In patients with locally advanced rectal cancer at high risk of circumferential resection margin involvement, robotic proctectomy is an effective approach and could be pursued when technically possible as an alternative to open proctectomy. See Video Abstract . RESULTADOS COMPARATIVOS ENTRE LA PROCTECTOMÍA ROBÓTICA Y LA PROCTECTOMÍA ABIERTA EN CASOS DE CÁNCER DE RECTO CON ALTO RIESGO DE MÁRGEN DE RESECCIÓN CIRCUNFERENCIAL POSITIVO ANTECEDENTES: Persisten preocupaciones con respecto a la efectividad de la proctectomía robótica en comparación con la proctectomía abierta en casos de cáncer de recto localmente avanzado con un alto riesgo de margen de resección circunferencial positivo. OBJETIVO: Comparar los resultados en la subpoblación de portadores de cáncer luego de una proctectomía robótica versus una proctectomía abierta. DISEÑO: Estudio retrospectivo de cohortes. AJUSTE: Realizado en tres hospitales académicos (Mayo Clinic de Arizona, Florida y Rochester) a través de la plataforma Mayo Data Explorer. PACIENTES: Fueron seleccionados aquellos pacientes con alto riesgo de compromiso sobre el margen de resección circunferencial, según la definición de los Estudios Mercury I-II basada en la Imágen de Resonancia Magnética. MEDIDAS DE RESULTADO PRINCIPALES Y SECUNDARIAS: La tasa de compromiso patológico sobre el margen de resección circunferencial (≤1 mm), la clasificación mesorrectal y la tasa del compromiso del margen distal. RESULTADOS: De 413 pacientes, 125 (30%) fueron sometidos a una proctectomía abierta y 288 (70%) a proctectomía robótica. La proctectomía abierta se asoció significativamente con una mayor proporción de tumores cT4 (39,3% frente a 24,8%, p = 0,021), las resecciones multiviscerales/concomitantes fueron de 40,8% frente a 18,4%, p < 0,001 y una adminstración menos frecuente de terapia neoadyuvante total (17,1). % vs 47,1%, p = 0,001). La proctectomía robótica se asoció con menos frecuencia con la presencia de una lesión sobre el margen de resección circunferencial patológico (7,3% frente a 17,6%, p = 0,002), incluso después del ajuste por estadio cT, de la terapia neoadyuvante y de resección multivisceral (OR 0,326, IC 95% 0,157-0,670, p = 0,002). El apareado de propensión por puntuación en 66 pacientes por grupo y el análisis multivariable relacionado, no mostraron ninguna reducción en la tasa de margen positivo circunferencial asociado con la cirugía robótica ( p = 0,86 y p = 0,18). La clasificación mesorrectal fue igualmente comparable (mesorrecto incompleto en el 6% de los pacientes con RP frente al 11,8% de los pacientes con OP, p = 0,327). Todos los casos tuvieron márgenes de resección distal negativos. LIMITACIÓN: Diseño retrospectivo. CONCLUSIÓN: En pacientes con cáncer de recto localmente avanzado con alto riesgo de compromiso del margen de resección circunferencial, la proctectomía robótica es un enfoque eficaz y podría realizarse cuando sea técnicamente posible como alternativa a la proctectomía abierta. (Traducción—Dr. Xavier Delgadillo )