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Tanis, Pieter J.

https://orcid.org/0000-0002-3146-3310

Mayo Clinic

Royal Marsden Hospital

Citations 2

Characteristics of Early-Onset vs Late-Onset Colorectal Cancer
Collaborative, REACCT, Zaborowski, Alexandra , Abdile, Ahmed, Adamina, Michel , Aigner, Felix , d’Allens, Laura, Allmer, Caterina, Álvarez, Andrea, Anula, Rocío, Atallah, S. , Bach, Simon P. , Barussaud, Marie, Baušys, Augustinas , Bebington, Brendan , Beggs, Andrew D. , Bellolio, Felipe, Bennett, Melissa-Rose , Berdinskikh, Anton, Bevan, Vicki, Bislenghi, Gabriele , Bludau, Marc , Boutall, Adam , Brouwer, Nelleke P.M. , Bruns, Christiane J. , Burger, Jacobus W. A. , Бурлов, Никита , Campanelli, Michela , Capdepont, Maylis, Carvello, Michele , Chew, Hwee-Hoon, Christoforidis, Dimitri, Clark, David A. , Climent, Marta, Cologne, Kyle G. , Contreras, Tomás, Croner, Roland S. , Daniels, I. R. , Delrio, Paolo , Deutsch, Michael , D’Hoore, André , Drozdov, E. S. , Duek, Daniel, Dunlop, Malcolm G. , Edmundson, Aleksandra , Efetov, Sergey , El‐Hussuna, Alaa , Elliot, Brodie, Espín, Eloy , Faes, Seraina , Faiz, Omar , Frasson, Matteo , Figueiredo, Nuno , Forgan, Tim , Frizelle, Frank , Gadaev, Shamil, Gellona, José, Glyn, Tamara , Gong, Jianping, Barisic, Goran, Greenwood, Emma, Guren, Marianne G. , Guillon, Stephanie, Gutlic, Ida , Hanly, Ann, Hasegawa, Hirotoshi , Iversen, Lene Hjerrild , Hill, James , Hoch, Jiří, Hoffmeister, Michael , Hompes, Roel , Hurtado‐Pardo, Luis , Iaquinandi, Fabiano , Imbrasaitė, Ugnė , Jafari, Mehrenah Dorna, Kanemitsu, Yukihide , Karimuddin, Ahmer , Keller, Deborah S. , Kelly, Justin, Kennelly, Rory , Khrykov, Gleb , Kocián, Petr , Koh, Cherry , Kok, N. F. M., Knight, Katrina , Knol, Joep, Kontovounisios, Christos , Kørner, Hartwig , Kronberger, Irmgard, Kroon, Hidde M. , Kural, Said , Lakkis, Zaher , Lankov, Timur , Larson, Dave, Lázár, György , Lee, Kai-Yin , Lepistö, Anna , Loi, Lynette , Lynch, Craig, Maillou‐Martinaud, Helene, Maroli, Annalisa , Martling, Anna , Matzel, Klaus E. , Mayol, Julio , McDermott, Frank , Meurette, G. , Mitteregger, Martin , Моисеенко, А С, Monson, John R.T. , Moritani, Konosuke , Munini, Martino , Nahas, Caio Sérgio Rizkallah , Negoi, Ionuţ , Novikova, A , Ocares, Misael, Olkina, Alexandra, Oñate‐Ocaña, Luis F. , Otero, Jaime, Özen, Cihan , Pace, Ugo , Julião, Guilherme Pagin São , Panaiotti, Lidiia , Panís, Yves , Papamichael, Demetris , Uriburu, Juan C Patrón , Pera, Miguél , Perez, Rodrigo Oliva , Pfeffer, F. , Phang, P. Terry , Poškus, Tomas , Pringle, Heather , Proud, David , Raguz, Ivana , Rama, N. , Rasheed, Shahnawaz, Raval, Manoj J. , Reißfelder, Christoph , Meneses, Juan Carlos Reyes , Ris, Frédéric , Riss, Stefan , Rodríguez‐Zentner, Homero , Saklani, Avanish , Salido, Andrea Jiménez, Sammour, Tarik , Saraste, Deborah , Schneider, Martin , Seishima, Ryo , Sekulic, Aleksander , Seppälä, Toni T. , Sheahan, Kieran , Shine, Rebecca , Shlomina, Alexandra , Sica, Guiseppe S., Singnomklao, T, Siragusa, Leandro , Spinelli, Antonino , Staiger, Roxane D. , Stamos, Michael J. , Sunderland, Michael, Tan, Ker‐Kan , Tanis, Pieter J. , Tekkis, Paris, Teklay, Biniam, Tengku, Sabrina , Jiménez‐Toscano, Marta , Turina, Matthias , Ulrich, Alexis , Vailati, Bruna Borba , Harten, Meike van, Warrier, Satish K. , Wexner, Steve, Wilt, Hans De, Xynos, Evangelos , You, Nancy, Zakharenko, Alexander, Zeballos, Justino, Winter, D. C. , Wexner, Steven D. , Hoffmeister, Michael , Seppälä, Toni T , Spinelli, Antonino , Wexner, Steven D , Ris, Frederic , Collaborative, REACCT, Andric, Mihailo , Bala, Miklosh , Biondo, Sebastiano , Brown, Carl James , Buchanan, Daniel D. , Buchwald, Pamela , Dapri, Giovanni , Davies, Justin , Denost, Quentin , Dias, André Roncon , Dziki, Adam Janusz , Emile, Sameh Hany , Evans, Martyn D. , Fleming, Fergal J. , Foppa, Caterina , Fowler, G , Gong, Jianping, Greenwood, Emma, Hahnloser, Dieter , Hampel, Heather , Hill, Andrew Graham , Islam, Rumana, Jafari, Mehrenah D, Карачун, А. М. , Krivokapić, Zoran , Kryžauskas, Marius , Kusters, Miranda , Lee, Suk-Hwan , Lefèvre, Jérémie H. , Lieu, Christopher H. , Martin, Sean, Millán, Mónica , Morărașu, Ștefan , Möslein, Gabriela , Nahas, Sérgio Carlos , Okabayashi, Koji , Олькина, Александра Юрьевна , Park, Jason , Patel, Swati , Petrov, Alexei, Rega, Daniela , Roxburgh, Campbell S.D. , Smart, Neil James , Solis, Alejandro, Steele, Scott R. , Владимирович, Царьков Петр , Verhoef, Cornelis , Weinberg, Benjamin A. , Wells, Cameron I. , Wolthuis, Albert M.

JAMA Surgery | June 30, 2021 | Volume: 156 | Issue: 9 | Pages: 865

10.1001/jamasurg.2021.2380 Get It

External validation of a prognostic model of preoperative risk factors for failure of restorative proctocolectomy
Sahami, Saloomeh , Bartels, S. A. L., D’Hoore, A., Fadok, Tonia Young, Tanis, Pieter J. , Overstraeten, A. de Buck van, Bemelman, Willem A. , Overstraeten, Anthony de Buck van , Wolthuis, Albert M. , Buskens, Christianne Johanna

Colorectal Disease | June 18, 2016 | Volume: 19 | Issue: 2 | Pages: 181-187

10.1111/codi.13414 Get It

AbstractAimThe Cleveland Clinic has proposed a prognostic model of preoperative risk factors for failure of restorative proctocolectomy (RPC) with ileal pouch–anal anastomosis. The model incorporates four predictive variables: completion proctectomy, handsewn anastomosis, diabetes mellitus and Crohn's disease. The aim of the present study was to perform an external validation of this model in a new cohort of patients who had RPC.MethodValidation was performed in a multicentre cohort of 747 consecutive patients who had an RPC between 1990 and 2015 in three tertiary‐care facilities, using a Kaplan–Meier survival analysis and Cox regression analysis. The performance of the model was expressed using the Harrell concordance error rate. The primary outcome measure was pouch survival with maintenance of anal function.ResultsDuring the study period, 45 (6.0%) patients experienced failure at a median interval of 31 months (interquartile range 9–82 months) from the original RPC. Multivariable analysis showed handsewn anastomosis to be the only significant independent predictor. The Harrell concordance error rate was 0.42, indicating poor performance. Anastomotic leakage and Crohn's disease of the pouch were strong postoperative predictors for pouch failure and showed a significant difference in pouch survival after 10 years (P < 0.001).ConclusionThe poor performance of the Cleveland Clinic prognostic model makes it unsuitable for daily clinical practice. Handsewn anastomosis was associated with pouch failure in our cohort with relatively few events. A prediction model for anastomotic leakage or Crohn's disease of the pouch may be a better solution since these variables are strongly associated with pouch failure.