Clinical and manometric results of peroral endoscopic myotomy in patients with achalasia: experience in a latin american reference center. / Resultados clínicos y manométricos de la miotomía endoscópica peroral en pacientes con acalasia: experiencia en un centro de referencia latinoamericano.

INTRODUCTION: Currently there is little information in Latin America on the clinical outcome and manometric evolution of patients with Achalasia undergoing peroral endoscopic myotomy (POEM). PRIMARY OUTCOME: Evaluate the manometric and clinical changes in adult patients with achalasia after peroral endoscopic myotomy at a referral center in Bogotá, Colombia. METHODS: Observational, analytical, longitudinal study. Adult patients with achalasia according to the Chicago 4.0 criteria were included. Sociodemographic, clinical and manometric variables were described. To compare the pre- and post-surgical variables, the Student's or Wilcoxon's t test was used for the quantitative variables according to their normality, and McNemar's chi-square for the qualitative variables. RESULTS: 29 patients were included, 55.17% (n=16) women, with a mean age at the time of surgery of 48.2 years (±11.33). The mean post-procedure evaluation time was 1.88±0.81 years. After the procedure, there was a significant decrease in the proportion of patients with weight loss (37.93% vs 21.43% p 0.0063), chest pain (48.28% vs 21.43, p 0.0225) and the median Eckardt score (8 (IQR 8 -9) vs 2(IQR 1-2), p <0.0001). In addition, in fourteen patients with post-surgical manometry, significant differences were found between IRP values (23.05±14.83mmHg vs 7.69±6.06mmHg, p 0.026) and in the mean lower esophageal sphincter tone (9.63±7.2mmHg vs 28.8±18.60mmHg, p 0.0238). CONCLUSION: Peroral endoscopic myotomy has a positive impact on the improvement of symptoms and of some manometric variables (IRP and LES tone) in patients with achalasia.

Are the Chicago 3.0 manometric diagnostics consistent with Chicago 4.0?

There is little information on the degree of concordance between the results obtained using the Chicago 3.0 (CCv3.0) and Chicago 4.0 (CCv4.0) protocols to interpret high-resolution manometry (HRM) seeking to determine the value provided by the new swallowing maneuvers included in the last protocol. This is a study of diagnostic tests, evaluating concordance by consistency between the results obtained by the CCv3.0 and CCv4.0 protocols, in patients undergoing HRM. Concordance was assessed with the kappa test. Bland-Altman scatter plots, and Lin's correlation-concordance coefficient (CCC) were used to assess the agreement between IRP measured with swallows in the supine and seated position or with solid swallows. One hundred thirty-two patients were included (65% women, age 53 ± 17 years). The most frequent HRM indication was dysphagia (46.1%). Type I was the most common type of gastroesophageal junction. The most frequent CCv4.0 diagnoses were normal esophageal motility (68.9%), achalasia (15.5%), and ineffective esophageal motility (IEM; 5.3%). The agreement between the results was substantial (Kappa 0.77 ± 0.05), with a total agreement of 87.9%. Diagnostic reclassification occurred in 12.1%, from IEM in CCv3.0 to normal esophageal motility in CCv4.0. Similarly, there was a high level of agreement between the IRP measured in the supine compared to the seated position (CCC0.92) and with solid swallows (CCC0.96). In conclusion, the CCv4.0 protocol presents a high concordance compared to CCv3.0. In the majority of manometric diagnoses there is no reclassification of patients with provocation tests. However, the more restrictive criteria of CCv4.0 achieve a better reclassification of patients with IEM.

Experiencia del manejo por colangiopancreatografía retrógrada endoscópica de las fístulas biliares poscolecistectomía en un hospital de referencia en Colombia / Experience in endoscopic retrograde cholangiopancreatography management of postcholecystectomy biliary leak in a Colombian referral hospital

Resumen Introducción: la fistula biliar poscolecistectomía es poco frecuente. El manejo principalmente es endoscópico, pero en la literatura no hay consenso en la técnica de primera línea entre papilotomía, prótesis biliar o su combinación. Metodología: se realizó un estudio observacional tipo serie de casos en el que se incluyeron todas las CPRE realizadas en el Hospital Universitario San Ignacio en Bogotá, Colombia, entre enero de 2010 y marzo del 2021 por fistula biliar posterior a colecistectomía. Se registraron las características demográficas, manifestaciones clínicas, resolución, eventos adversos y estancia hospitalaria según la técnica endoscópica. Resultados: se incluyeron 24 pacientes con fistula biliar poscolecistectomía que se manejaron con CPRE. La mediana de edad fue de 59 años (rango intercuartílico [RIC]: 53,5-67). En el 75% el tipo de cirugía fue laparoscópica. La manifestación clínica más frecuente fue aumento del drenaje biliar > 150 mL/24 horas (50%), seguido de dolor abdominal (39%). La principal localización fue el conducto cístico en el 40%. El manejo con papilotomía fue del 25%; con prótesis biliar, 8,4%, y combinado, 66%; la resolución de la fístula ocurrió en el 100%, 50% y 87%, respectivamente, con menor estancia hospitalaria en el manejo combinado de 3,5 días frente a 4 días en papilotomía. Solo se presentó 1 evento adverso de hemorragia en el grupo de papilotomía. Conclusión: la papilotomía y la terapia combinada son opciones terapéuticas con buenas tasas de resolución y baja estancia hospitalaria para el manejo de las fistulas biliares poscolecistectomía. Se requerirán estudios prospectivos, aleatorizados y multicéntricos para definir la técnica con mejores desenlaces clínicos.

Abstract Introduction: Postcholecystectomy biliary leak is rare. Management is mainly endoscopic, but in the literature, there is no consensus on the first-line technique between sphincterotomy, biliary stent, or combination. Materials and methods: A case series study was conducted that included all ERCP performed at the San Ignacio University Hospital in Bogotá, Colombia, between January 2010 and March 2021 due to biliary leak after cholecystectomy. Demographic characteristics, clinical manifestations, resolution, adverse events, and hospital length stay were recorded according to the endoscopic technique. Results: 24 patients with postcholecystectomy biliary leak managed with ERCP were included. The median age was 59 years (interquartile range [IQR]: 53.5-67). In 75% the surgery was laparoscopic. The most frequent clinical manifestation was increased biliary drainage > 150 mL/24 hours (50%), followed by abdominal pain (39%). The main fistula's location was the cystic duct in 40%. Management with sphincterotomy was 25%, with a biliary stent, 8.4%, and combined, 66%; leak resolution occurred in 100%, 50%, and 87%, respectively, with a shorter hospital length stay in the combined management of 3.5 days compared to four days in sphincterotomy. Only one adverse bleeding event occurred in the sphincterotomy group. Conclusion: Sphincterotomy and combined therapy are options with reasonable resolution rates and low hospital length stay for managing postcholecystectomy biliary leak. Prospective, randomized, and multicenter trials will be required to define the best technique.