Background: Postoperative recurrence remains a significant problem in Crohn's disease, and the mesentery is implicated in the pathophysiology. The Kono-S anastomosis was designed to exclude the mesentery from a wide anastomotic lumen, limit luminal distortion and fecal stasis, and preserve innervation and vascularization.
Objective: To review postoperative complications and long-term outcomes of the Kono-S anastomosis in a large series of consecutive unselected patients with Crohn's disease.
Design: Retrospective study of prospectively collected patients.
Settings: Four tertiary referral centers.
Patients: Consecutive patients with Crohn's disease who underwent resection with Kono-S anastomosis between May 2010 and June 2022.
Interventions: Extracorporeal handsewn Kono-S anastomosis.
Main Outcome Measures: Postoperative outcomes and recurrence defined as endoscopic, clinical, laboratory, or surgical, including endoscopic, intervention.
Results: A total of 262 consecutive patients (53.4% male) were included. The mean duration of disease at surgery was 145.1 months. One hundred thirty-five patients (51.5%) had previous abdominal surgery for Crohn's disease. Forty-four patients (17%) were actively smoking and 150 (57.3%) were on biologic therapy. Anastomotic failure occurred in 4 (1.5%), with 2 patients requiring reoperation (0.7%). Sixteen patients had postoperative surgical site infection (6.1%). With a median follow-up of 49.4 months, 20 patients (7.6%) were found to have surgical recurrence. In the multivariate analysis, perianal disease (OR = 2.83, p = 0.001), urgent/emergent surgery (OR = 3.23, p = 0.007), and postoperative use of steroids (OR = 2.29, p = 0.025) were associated with increased risk of overall recurrence.
Limitations: Retrospective study and variability of perioperative medical therapy.
Conclusions: This study showed very low postoperative complication rates despite the complexity of the patient population. There was a low rate of surgical recurrence, likely due to the intrinsic advantages of the anastomotic configuration and the low rate of postoperative septic complications. In experienced hands, the Kono-S anastomosis is a safe technique with very promising short- and long-term results. Randomized controlled trials are underway to validate this study's findings. See Video Abstract .
Resultado A Largo Plazo De La Anastomosis Konos Un Estudio Multicntrico: ANTECEDENTES:La recurrencia posoperatoria sigue siendo un problema importante en la enfermedad de Crohn y el mesenterio está implicado en la fisiopatología. La anastomosis Kono-S fue diseñada para excluir el mesenterio de una anastomosis amplia, limitar la distorsión luminal y la estasis fecal y preservar la inervación y vascularización.OBJETIVO:Revisar las complicaciones posoperatorias y los resultados a largo plazo de la anastomosis Kono-S en una gran serie de pacientes consecutivos no seleccionados con enfermedad de Crohn.DISEÑO:Estudio retrospectivo de pacientes recolectados prospectivamente.ESCENARIO:Cuatro centros de referencia terciarios.PACIENTES:Pacientes consecutivos con enfermedad de Crohn sometidos a resección con anastomosis Kono-S entre mayo de 2010 y junio de 2022.INTERVENCIONES:Anastomosis Kono-S extracorpórea manual.PRINCIPALES MEDIDAS DE RESULTADO:Resultados posoperatorios y recurrencia definidos como endoscópicos, clínicos, de laboratorio o quirúrgicos, incluida la intervención endoscópica.RESULTADOS:Se incluyeron un total de 262 pacientes consecutivos (53,4% varones). La duración media de la enfermedad al momento de la cirugía fue de 145,1 meses. Ciento treinta y cinco pacientes (51,5%) habían tenido cirugía abdominal previa por enfermedad de Crohn. Cuarenta y cuatro pacientes (17%) eran fumadores activos y 150 (57,3%) estaban en tratamiento biológico. Se produjo filtración anastomótica en 4 (1,5%) y 2 pacientes requirieron reoperación (0,7%). Dieciséis pacientes tuvieron infección postoperatoria del sitio quirúrgico (6,1%). Con una mediana de seguimiento de 49,4 meses, se encontró que 20 pacientes (7,6%) tuvieron recurrencia quirúrgica. En el análisis multivariado, la enfermedad perianal (OR = 2,83, p = 0,001), la cirugía urgente/emergente (OR = 3,23, p = 0,007), el uso postoperatorio de esteroides (OR = 2,29, p = 0,025) se asociaron con un mayor riesgo de recurrencia general.LIMITACIÓN:Estudio retrospectivo. Variabilidad del tratamiento médico perioperatorio.CONCLUSIONES:Nuestro estudio mostró tasas de complicaciones postoperatorias muy bajas a pesar de la complejidad de la población de pacientes. Hubo una baja tasa de recurrencia quirúrgica, probablemente debido a las ventajas intrínsecas de la configuración anastomótica y la baja tasa de complicaciones sépticas posoperatorias. En manos experimentadas, la anastomosis Kono-S es una técnica segura con resultados muy prometedores a corto y largo plazo. Se están realizando estudios randomizados controlados para validar nuestros hallazgos. (Traducción-Dr. Felipe Bellolio ).
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http://dx.doi.org/10.1097/DCR.0000000000003132 | DOI Listing |
Zhonghua Wai Ke Za Zhi
January 2025
Department of General Surgery (Colorectal Surgery), the Sixth Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Key Laboratory of Human Microbiome and Chronic Diseases (Sun Yat-sen University), Ministry of Education, Guangzhou510655, China.
In recent years, with the deepening of mesentery research, it is found that its blood vessels, nerves, lymphoid tissue, adipose tissue and other structures play an important role in the occurrence and development of Crohn disease, and the degree of lesion is related with the disease process, surgical difficulty, the occurrence of intraoperative complications and postoperative recurrence. The optimal surgical strategy of Crohn disease based on mesenteric involvement has received great attention. Multiple retrospective studies found that extended mesenteric resection and Kono-S anastomosis potentially could reduce the rate of postoperative recurrence.
View Article and Find Full Text PDFJ Gastrointest Surg
January 2025
Center for Inflammatory Bowel Diseases, Department of General Surgery, The Affiliated Jinling Hospital of Nanjing Medical University, Nanjing, China; Center for Inflammatory Bowel Diseases, Department of General Surgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China. Electronic address:
Background: Hand-sewn Kono-S anastomosis is safe and associated with a reduction in post-operative recurrence (POR) in Crohn's disease (CD). The study aims to investigate the advantages of stapled Kono-S in Crohn's patients with intestinal anastomosis.
Methods: Crohn's patients undergoing intestinal anastomosis were reviewed via a prospectively maintained database.
Int J Colorectal Dis
January 2025
Royal Brisbane and Women's Hospital, Butterfield St., Herston, QLD, 4006, Australia.
Purpose: Given the evolving literature regarding the optimal surgical approach to mitigate post-operative recurrence of Crohn's disease (CD), this survey study aimed to elucidate the practices and preferences of colorectal surgeons in Australia and New Zealand (ANZ) in their surgical management of CD.
Methods: Colorectal surgical consultants and fellows (n = 337) registered with the Colorectal Surgical Society of Australia and New Zealand (CSSANZ) were invited by email in April 2022 to participate in a cross-sectional survey consisting of basic demographics and 12 questions relating to their usual surgical practice and preferred operative strategy.
Results: A total of 135 responses were received (39.
ANZ J Surg
January 2025
Colorectal Unit, Department of General Surgery, The Alfred, Melbourne, Victoria, Australia.
J Surg Res
December 2024
Division of Colon and Rectal Surgery, Penn State Hershey Medical Center, Hershey, Pennsylvania. Electronic address:
Introduction: The Kono-S (KS) anastomosis for Crohn's disease (CD) is associated with improved endoscopic and clinical long-term outcomes. Ileocolonic anastomoses in CD are associated with an unacceptable anastomotic complication rate - up to 40%. Investigation of short-term benefits of KS is thus warranted.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!