Health Services Research

  • Are deeper sections and immunohistochemistry useful in detecting micrometastases and isolated tumour cells in colorectal cancer?

    Dodington D, Guidolin K, Quereshy F, Serra S, Nowak K. Pathology. 2025. In Press.

  • A machine learning model to predict the need for conversion of operative approach in patients undergoing colectomy for neoplasm

    Guidolin K, Ng D, Zorigtbaatar A, Chadi S, Quereshy F. Cancer Rep. 2023. doi: 10.1002/cnr2.1917

  • External validation of the Codman Score in Colorectal Surgery: a pragmatic tool to drive quality improvement

    Spence R, Guidolin K, Quereshy F, Chadi S, Chang D, Hutter M. Colorectal Dis. 2023. doi: 10.1111/codi.16547

  • The Financial Relationship Between Surgical Fellowship Program Directors and Industry

    Zorigtbaatar A, Jayaram A, Guidolin K, Quereshy F, Chadi S. JAMA Surgery. 2023. doi: 10.1001/jamasurg.2022.7088

  • A stepwise approach to laparoscopic splenic flexure mobilization - A video vignette

    Oosenbrug M, Guidolin K, Knol J, Melani AGF, Quereshy F, Chadi S. Colorectal Dis. 2022. doi: 10.111/codi.16346

  • Impact of surgeon and hospital factors on length of stay after colorectal surgery systematic review

    Bayat Z, Guidolin K, Elsolh B, De Castro C, Kennedy E, Govindarajan A. British Journal of Surgery Open. 2022. doi: 10.1093/bjsopen/zrac110

  • Can rectosigmoid cancer patients wait for surgery? Exploring the association of time-to-surgery with patient outcomes.

    Quereshy H, Chesney T, Guidolin K, Draginov A, Chadi S, Quereshy F. Canadian Journal of Surgery. 2022. doi: 10.1503/cjs.002721.

  • Attitudes of Canadian colorectal cancer care providers towards liver transplantation for colorectal liver metastases: a national survey.

    Guidolin K, Choi WJ, Servidio-Italiano F, Quereshy F, Sapisochin G. Current Oncology. 2022. doi: 10.3390/curroncol29020054.

  • Racial disparities in colon cancer survival – a propensity score matched analysis in the United States.

    Azin A, Guidolin K, Chadi S, Quereshy F. Surgery. 2022. doi: 10.1016/j.surg.2021.09.028.

  • Post-operative outcomes in patients with locally advanced colon cancer: a comparison of operative approach.

    Guidolin K, Ng D, Chadi S, Quereshy F. Surg Endosc. 2022. doi: 10.1007/s00464-021-08772-9.

  • Neoadjuvant therapy versus direct-to-surgery for T4 colon cancer: a meta-analysis.

    Jung F, Lee M, Doshi S, Zhao G, Lam-Tin-Cheung K, Chesney T, Guidolin K, Englesakis M, Lukovic J, O’Kane G, Quereshy F, Chadi S. Br J Surg. 2021 Dec 17;109(1):30-60. doi: 10.1093/bjs/znab382.

  • The effect of operative duration on the outcome of colon cancer procedures.

    Guidolin K, Spence R, Azin A, Hirpara D, Lam-Tin-Cheung K, Quereshy F, Chadi S. Surg Endosc. 2021 Nov 15. doi: 10.1007/s00464-021-08871-7.

  • Malignant bowel obstruction management over time: are we doing anything new? A current narrative review.

    Shariff F, Bogach J, Guidolin K, Nadler A. Ann Surg Oncol. 2021 Oct 18. doi: 10.1245/s10434-021-10922-1

  • Starting late does not increase the risk of post-operative complications in patients undergoing common general surgical procedures.

    Guidolin K, Lam-Tin-Cheung K, Chadi S, Quereshy F. Surg Endosc. 2021 Sep 1. doi:10.1007/s00464-021-08694-6.

  • Apical lymphadenectomy during low-ligation of the IMA during rectosigmoid resection for cancer.

    Guidolin K, Covelli A, Chesney T, Draginov A, Chadi S, Quereshy F. Surg Open Sci. 2021;5:1-5. doi:10.1016/j.sopen.2021.06.002.

  • Quality of colon cancer care in patients undergoing emergency surgery.

    Guidolin K, Withers R, Shariff F, Ashamalla S, Nadler A. Curr Oncol. 2021;28(3):2079-2086. doi:10.3390/curroncol28030192.

  • Interventions and outcomes for neoadjuvant treatment of T4 colon cancer: a scoping review.

    Jung F*, Guidolin K*, Lee MHY, Lam-Tin-Cheung K, Zhao G, Doshi S, Chesney T, Englesakis M, Lukovic J, O’Kane G, Quereshy F, Chadi S. Curr Oncol. 2021;28(3):2065-2078. doi:10.3390/curroncol28030191.

  • Extended duration of fecal diversion is associated with increased ileus upon loop ileostomy reversal.

    Guidolin K, Jung F, Spence R, Quereshy F, Chadi S. Colorectal Dis. 2021;23:2146-2153. doi:10.1111/codi.15739.

  • Strengths and Weaknesses in the methodology of survey-based research in surgery: a call for standardization.

    Guidolin K, Wexner S, Jung F, Khan S, Deng SX, Kirubarajan A, Quereshy F, Chadi S. Surgery. 2021;16:S0039-6060(21)00023-4. doi:10.1016/j.surg.2021.01.006.

  • Minimally invasive surgical approaches are safe and appropriate in N2 colorectal cancer.

    Guidolin K, Spence R, Chadi S, Quereshy F. Dis Colon Rectum. 2021;64(3):293-300. doi:10.1097/DCR.0000000000001809.

  • Low-ligation of the inferior mesenteric artery with apical lymph node dissection during rectosigmoid resection for preservation of the left colic artery.

    Guidolin K, Chadi S, Quereshy F. Tech Coloproctol. 2021;25(1):139. doi:10.1007/s10151-020-02306-6.

  • Current evidence for minimally invasive surgery during the COVID-19 pandemic and risk mitigation strategies: a narrative review.

    Chadi S*, Guidolin K*, Caycedo-Marulanda A, Sharkawy A, Spinelli A, Quereshy F, Okrainec A. Ann Surg. 2020;272(2):e118-e124. doi:10.1097/SLA.0000000000004010.

  • Recurrence and mortality following breast conserving surgery without radiation.

    Guidolin K, Lock M, Vogt K, McClure JA, Winick-Ng J, Vinden C, Brackstone M. Curr Oncol. 2019;26(6):380-8. doi:10.3747/co.26.5225.

  • Stereotactic Image-Guided Neoadjuvant Ablative Single Dose Radiation then Lumpectomy (SIGNAL) for early breast cancer: a prospective single arm trial of single dose radiation therapy.

    Guidolin K, Yaremko B, Lynn K, Gaede S, Kornecki A, Muscedere G, BenNachum I, Shmuilovich O, Mouawad M, Yu E, Sexton T, Gelman N, Moiseenko V, Brackstone M, Lock M. Curr Oncol. 2019;26(3):334-40. doi:10.3747/co.26.4479.

  • Appropriate treatment receipt following breast conserving surgery.

    Guidolin K, Lock M, Vogt K, McClure JA, Winick-Ng J, Vinden C, Brackstone M. Curr Oncol. 2018;25(6):545-52. doi:10.3747/co.25.4117.

  • Patient-perceived barriers to radiation therapy for breast cancer.

    Guidolin K, Lock M, Brackstone M. Can J Surg. 2017;61(2):141-143. doi:10.1503/cjs.015716.

  • Predicting which patients actually receive radiation following breast conserving therapy in Canadian populations.

    Guidolin K, Lock M, Richard L, Boldt G, Brackstone M. Can J Surg. 2016;59(2):358-360. doi:10.1503/cjs.000516.

  • Identifying primary spontaneous pneumothorax from administrative databases: a validation study.

    Frechette E, Guidolin K, Seyam A, Choi YH, Jones S, McClure JA, Winick-Ng J, Welk B, Malthaner R. Can Resp J. 2016;2016:1690482. doi:10.1155/2016/1690482.

  • A phase II trial to evaluate single dose stereotactic radiation therapy (SBRT) prior to surgery for early stage breast carcinoma: SIGNAL (stereotactic image-guided neoadjuvant ablative radiation then lumpectomy) trial.

    Guidolin K, Lock M, Yaremko B, Gelman N, Gaede S, Kornecki A, Moiseenko V, Cao J, Scott L, Brackstone M. J Radiat Oncol. 2015;4:423-430. doi:10.1007/s13566-015-0227-2.

  • Is it safe to wait? The effect of surgical wait times on survival in non-small cell lung cancer.

    Coughlin S, Plourde M, Guidolin K, Fortin D, Frechette E, Malthaner R, Inculet R. Can J Surg. 2015 Dec;58(6):414-418. doi:10.1503/cjs.007015.