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1.
Colorectal Dis ; 23(12): 3090-3100, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34374203

RESUMEN

AIM: Benign anastomotic strictures following colorectal surgical resection are a commonly under-reported complication in up to 30% of patients, with a significant impact upon quality of life. In this systematic review, we aim to assess the utility of endoscopic techniques in avoiding the need for surgical reintervention. METHOD: A literature search was performed for published full text articles using the PubMed, Cochrane and Scopus databases. Additional papers were found by scanning the references of relevant papers. RESULTS: A total of 34 papers were included, focusing upon balloon dilatation, endoscopic stenting, electroincision, stapler stricturoplasty and cortiocosteroids alone and in combination, with success rates varying from 20% to 100%. The most challenging strictures were reported as those with a narrow lumen, frequently observed following neoadjuvant chemoradiotherapy or an anastomotic leak. Endoscopic balloon dilatation was the most commonly used first-line method; however, repeated dilatations were often required and this was associated with an increased risk of perforation. Although initial success rates for stents were good, patients often experienced stent migration and local symptoms. Only a small number of patients experienced endoscopic management failure and progressed to surgical intervention. CONCLUSION: Following identification of an anastomotic stricture and exclusion of underlying malignancy, endoscopic management is both safe and feasible as a first-line option, even if multiple treatment exposures or multimodal management is required. Surgical resection or a defunctioning stoma should be reserved for emergency or failed cases. Further research is required into multimodal and novel therapies to improve quality of life for these patients.


Asunto(s)
Fuga Anastomótica , Calidad de Vida , Anastomosis Quirúrgica/efectos adversos , Fuga Anastomótica/etiología , Fuga Anastomótica/cirugía , Constricción Patológica/etiología , Constricción Patológica/cirugía , Dilatación , Humanos , Estudios Retrospectivos , Stents , Resultado del Tratamiento
2.
Colorectal Dis ; 23(3): 582-591, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32978892

RESUMEN

AIM: Anastomotic leak (AL) after colorectal resection is associated with increased rates of morbidity and mortality: potential permanent stoma formation, increased local recurrence, reduced cancer-related survival, poor functional outcomes and associated quality of life. Techniques to reduce leak rates are therefore highly sought. METHOD: A literature search was performed for published full text articles using PubMed, Cochrane and Scopus databases with a focus on colorectal surgery 1990-2020. Additional papers were detected by scanning references of relevant papers. RESULTS: A total of 53 papers were included after a thorough literature search. Techniques assessed included leak tests, endoscopy, perfusion assessment and fluorescence studies. Air-leak testing remains the most commonly used method across Europe, due to ease of reproducibility and low cost. There is no evidence that this reduces the leak rate; however, identification of a leak intra-operatively provides the opportunity for either suture reinforcement or formal takedown with or without re-do of the anastomosis and consideration of diversion. Suture repair alone of a positive air-leak test is associated with an increased AL rate. The use of fluorescence studies to guide the site of anastomosis has demonstrated reduced leak rates in distal anastomoses, is safe, feasible and has a promising future. CONCLUSION: Although over reliance on any assessment tool should be avoided, intra-operative techniques with the aim of reducing AL rates are increasingly being employed. Standardization of these methods is imperative for routine use. However, in the interim it is recommended that all anastomoses should be assessed intra-operatively for mechanical failure, particularly distal anastomoses.


Asunto(s)
Neoplasias Colorrectales , Calidad de Vida , Anastomosis Quirúrgica/efectos adversos , Fuga Anastomótica/etiología , Fuga Anastomótica/prevención & control , Neoplasias Colorrectales/cirugía , Humanos , Reproducibilidad de los Resultados
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