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1. Colombian surgical outcomes study insights on perioperative mortality rate, a main indicator of the lancet commission on global surgery – a prospective cohort study

Author

Pérez Rivera, Carlos J., Lozano-Suárez, Nicolás, Agudelo-Mendoza, Silvia Valentina, Bohórquez-Tarazona, Maria Paz, García-Zambrano, Laura, Lara-Espinosa, Daniela, Polania-Sandoval, Camilo Andres, Rojas-Serrano, Luisa Fernanda, Vargas-Cuéllar, María Paula, Velandia-Sánchez, Alejandro, Cabrera-Rivera, Paulo Andrés, Briceno-Ayala, Leonardo, Cruz-Reyes, Danna, Barrera Carvajal, Juan Guillermo, Cabrera-Vargas, Luis Felipe, Guevara, Oscar, Arce Polania, Laura Cristina, Buendía Barrios, Laura Natalia, Cristina Camargo Areyanes, María Isabel, Casas, Felipe, Alfaro, Valeria Cormane, García-Méndez, Juan P., Guerra, Bayron, Idarraga-Ayala, Sharon V., Abiyomaa, Akram Kadamani, Montoya, Christopher, Mosquera Paz, Manuel Santiago, Pineda, María Alejandra, Pinzón-Luna, Juliana, Bastidas, Isabella Roa, Roman Ortega, Carlos Fernando, Saavedra Henao, Juan D., SanJuan-Arias, Laura Carolina, Barreto, Vanessa, Corso, Julian, Maksoud-Garcia, Mariana, Mateus, Eliana Pineda, Zabaraín, Alejandra Vega, Mantilla-Sylvain, Fabien, Perez, Nicolas, Alzate-Ricaurte, Sergio, Bejarano, Monica, Caicedo Holguin, Isabella, García, Alberto Federico, Sanchez, Stefania Rodriguez, Santos, Felipe Bernal, Jaspe, Carlos Luna, Maria Camila Luna-Jaspe Roa, OLIVERA Bolívar, Maria Paula, Diaz, MariaFernanda Valdivieso, Agudelo, Yuli, Castillo-Aristizábal, Maria Paula, Hoyos Burgos, Juan Pablo, Maria Clara Mendoza Arango, Maria Clara, Gabriel Arroyave, Preciado, Felipe Buitrago, Cardona González, Lina María, Correa-Cote, Juan Camilo, Franco Arias, Karen Lorena, Llano Sierra, Juan Felipe, López, Gustavo, Mancero, Cesar, Parra, Sebastian, Gonzalez, Beatriz Ramirez, Daniela Sierra, Amaya Muñoz, Maria Camila, Blanco-Ramírez, Ashley, Camacho, Paul Anthony, Campillo, Jorge, Carvajal Mejia, Andrea Ximena, María Alejandra González Yamil, Osorno Villegas, Juan Carlos, Eduardo Rubio, Herrera, Santiago Sánchez, Herrera, Sebastian Sanchez, Agudelo, Tatiana, Andrade, Valentina, Pérez, Laura Arango, Ariza-Gutiérrez, Anibal, Jacobo Berrio, Torres, Natalia Cantillo, Chamorro-Rodríguez, Maria Valeria, Conde, Lucia, Feo Lee, Oscar Hernando, González Nieto, María Camila, Ibañez-Pintor, Laura Cecilia, Ochoa, Catalina, Ospina, Juan, Pérez-Ocampo, Juan José, Rojas, Esteban Portilla, Rey, Daniela Saaibi, Serrano, Eduardo, Solorza Velásquez, Sharon Michelle, Toro Cubides, Angélica María, Aguiar, Raúl, Beltrán Rincón, Diego Armando, Figueroa, Juan Sebastian, Figueroa-Casanova, Rafael, Gonzalez Mosos, Maria Fernanda, Marcia Gabriela Gómez, Osorno, Susana, Laura Palacio, Laura, Venegas, Jose, Caicedo Ramírez, Liliana Marcela, Cardona Gomez, Diana Catalina, Alejandro Fernandez Bolaños, Daniel, Fernández-Diago, Adriana, Olave Montaño, Victor David, Pastás, César, Amorocho, Silvia Marcela, Barbosa-Santibañez, Jorge, Baron, Vladimir, Cartagena-Alvarado, Alejandra, Castillo, Maria, Castillo-Florez, Maria Carolina, Dimian Mayorga, Omar David, Delgado-Nieto, Elena Leonor, Fajardo, Ernesto, Gomez Polania, Omar Leonardo, Gonzalez, Tania, Guzman Mesa, Daniel Felipe, Isaza-Restrepo, Andres, Leal, Jaime A., Medina, Camilo, Navarro-Alean, Jorge, Ocampo, Maria Antonia, Oliveros, Guillermo, Ortiz, Maria, Ortiz-Mahecha, Jorge I., Abaunza, Katherine Parra, Pulido Reyes, Felipe Antonio, Rivera-Rincón, Natalia, Carlos Alfonso Rodriguez Pinedo, Sanchez, Lizeth Rodriguez, Romero, Juan Javier, Sabogal Olarte, Juan Carlos, Salgado Tovar, Javier Mauricio, Torres, Guillermo Andrés, Vallejo, Linda, Vargas-Barato, Felipe, Vargas Patiño, Ana María, Villate León, Juan Pablo, Montañez Aldana, Miguel Angel, Norato, Chiara, Borda, Hugo Rojas, Núñez, Miguel Á Romero, Sánchez, Alejandro, López, Jose Támara, Támara P, Jose, Wilmer Fernando Botache Capera, Rojas, Rolando Medina, Juan Torres, Trujillo, Gina Catalina, Cubillos Saavedra, Gabriela Estefanía, Francisco García-Laverde, Naffah Enciso, Jussef Camilo, Betancur, Julian Arango, Cortés-Coronado, Adriana, Susana Sepúlveda Tamayo, Cardenas, Valentina Arboleda, García-Barrero, Luis Guillermo, Jhonatan Enrique Garzón-Galindo, Torres Parada, Lina Fernanda, Quintero, Alejandro Arias, Cano, David, Montoya Quintero, Kevin Fernando, Santiago Nieto Muñoz, Mejía, Paula Saza, Gomez Barrios, Jesus David, Jimeno, María Angélica, Restrepo Hernandez, Ghandi Ignacio, Rodríguez-Sequea, Adrian, Varón Cotes, Juan Carlos, Hanner Enrique Acevedo Reyes, Barandica Bolaño, Claudia Marcela, Sierra-Cote, Maria Camila, Angarita Vargas, Laura Daniela, Báez Ramírez, Alix Yurany, Rodriguez Suarez, Jose Armando, Sánchez, David Leonardo, Sandoval Rangel, Silvia Natalia, Hurtado, Edwin Ulloa, Hernández Almanza, Olga Esther, Martínez Zubiria, Rosalba Inmaculada, Muegues Salas, Angel Alexis, Becerra Cardona, Diego Alexander, Cárdenas Santamaría, Fabio Hernán, Echeverri Castaño, Juan Daniel, Echeverri Uribe, Juan Sebastián, Gaitán Buitrago, María Helena, Galvis Valencia, Luis Felipe, Sabogal, Andrea Henao, López Atehortúa, David Felipe, Molina Uribe, Juan Manuel, Peñate Suárez, Edwin Enrique, Valencia, Heiller Torres, Salazar, Marcela Velásquez, Correa, Catalina, García, Hans, Leal, Juan Hernández, Muñoz Vargas, Paula Tatiana, Bolívar Sáenz, Dínimo José, Caicedo Medina, Camilo Andrés, Garcia Riaño, Camilo Andres, Gonzalez, Stephanye Carrillo, Gómez, Jaime Lorduy, Madrid, Carlos Torres, Villa, Walter Torres, Luengas Orozco, Juan Sebastian, Capriles, Camilo Avendaño, Blanco, Carolina Diaz, Brieva Hoyos, Maria Lucía, Cantillo Moreno, Paola Andrea, Granados Mendoza, Sofía Carolina, Vizcaino Lara, José Dario, Babativa Peñuela, Karla Lizeth, Jiménez Bahamón, Paula Andrea, Maldonado Rico, Jhonier Estiven, Martínez Cortes, Duvan Ernesto, Orjuela Aragón, José Alfredo, Castro Roa, Lizeth Daniela, Gallego, Julieth Sarmiento, Herazo Meza, Marta Maria, Hernández Castillo, Anlly Caterin, Rojas Moncada, Rosa Gabriela, Casanova Bermeo, Lucia Fernanda, Cortés Otero, Oscar Fernando, Pinilla, Nicolás Diaz, Herrera Delgado, Harrison Rene, Macías Segura, Simon Alberto, Muñoz Castrillón, David Ramiro, Nuñez Romero, Luis Ramiro, Polania Andrade, Cesar Andrés, Valdez Toro, Hector Alejandro, Cardozo Parrado, Ana María, Moros, Jose Gonzalo, Nieto, Paula Andrea, Patarroyo, Jorge Mario, Perilla Martínez, Jose Luis, Gutierrez, María del Pilar Torres, Benito Flórez, Erika Johana, Gómez, Mariana Vergel, Robayo Rodriguez, Diana Ximena, Salcedo Miranda, Diego Fernando, Triviño Cortés, Maria Alejandra, Sastre, William Baquero, Bonett, Juan Sebastian, Cortes, Eliana, Duque, Pedro Fernando, Gutierrez, Carlos Enrique, Echeverry, Piedad, Motta Amar, Andrés Felipe, Torres, Lorena, Bautista, Jeremias Carvajal, Figueroa Bohórquez, David Mauricio, Quintana, Manuel Latorre, Olivera Briñez, Diego Fernando, Quintero Contreras, Marcel Leonardo, Gamboa, Raúl Vera, Zapata, Mariana Arias, Benavides Caipe, Cristhian Daniel, Betancur Acevedo, Luisa Fernanda, Zuluaga, Valentina Botero, Figueroa-Espinoza, Vanessa, Londoño-Patiño, Arbey Leandro, Moncayo-Gonzalez, Santiago, Puerta Suárez, Laura Sofia, Vargas-Arboleda, Paula Camila, Gonzalez Cera, Lisbet Sofia, Toro, Katerine Henao, de Jesus Ortiz Pino, Leobardo, Vasquez Vargas, Sergio Andrés, Zuluaga, Lency Naranjo, Garzón, Jaime Chamorro, Franco Rodriguez, Adriana Paola, Acosta Alape, Nataly Johana, Arbelaez Mariño, Andrés Felipe, Mora Herrera, Juan José, Ayala Muñoz, Javier Felipe, Camacho Pinzon, Yeiny Carina, Cárdenas Chacón, José Francisco, Peña Arenas, Liliana Andrea, Rodriguez Camargo, Gustavo Adolfo, Sánchez Arango, Carlos Alberto, Bolaños Ñañez, Daniel Mauricio, Garcés-Palacios, Diana Sofía, Ñañez Pantoja, María Alejandra, Ortega-Valencia, Omar Alejandro, Gamboa Bernal, María Paula, Lotero Gómez, Juan David, Martínez-Gutiérrez, Juan Sebastián, Morales-Gómez, Daniel, Pardo-Jiménez, Lina, Fonseca Galindo, Leon Miguel, Garcia Ramirez, Angélica Maria, Saurith Ramirez, Juan David, Barrero Montoya, Ivan Ricardo, Espitia, Santiago Cadena, Rojas, Salomé Pallares, Zapata Berrio, Laura Camila, Benavides Rodríguez, Diana Andrea, Gonzalez, Juan Carlos, Idarraga, Sharon Valentina, Márquez Rodríguez, Óscar Eduardo, Marrugo Prieto, Ivi Yohana, Soledad Machado, Laura Vanessa, Luna, Rubén, Pulido, Nicolás Navarro, Nuñez Ricardo, Federico Javier, García López, Andrea Elena, Luque, Fernando Girón, Jaramillo, Nasly Patiño, Pedraza Alonso, Néstor Fabian, Acuña Acuña Rivera JY, Javier Yecid, Guevara Cruz, Oscar Alexander, Martínez Buitrago, Juan Sebastián, Oviedo, Nathalia Montoya, Santafe Guerrero, Marcia Roxana, Chaves Cortés, Juanita Carolina, Rincón Tello, Francisco Mauricio, Bejarano Ramirez, Diana Fernanda, Cortes Mejia, Nicolas Andres, Garzon Mesa, Camilo Ernesto, Pabon, Alejandra Moncada, Triviño Alvarez, Diego Rymel, Torres, Alonso Vera, Cote Martinez, Maria Alejandra, Machado Rodriguez, Juan Manuel, Martinez, Gonzalo Nuñez, Osuna, Laura Naranjo, Roldan Garay, Andres Felipe, Amado, Daniel, Camacho-Mackenzie, Jaime, Maria Ceballos Mora, Cifuentes-Navarrete, Sara, Donoso-Samper, Andrea, Ferro, Manuel A., Gómez-Cáceres, Juan C., Gómez-Galán, Sebastián, Leiva, Ana G., Lisarazo, Juan, López-Castaño, Maria G., Martínez-Gil, Sofía, Montoya, M.J., Niño-Basto, Santiago, Ortigoza-Espitia, Sergio Andrés, Páez, Gustavo, Ramos-Anaya, Jesús William, Rozo, María J., Umana, Juan P., Amar, Andres Motta, Barrera Vargas, Andrés Felipe, Maldonado Escalante, Javier Dario, Molina Marroquin, German Ricardo, Prada Lievano, Silvia Alejandra, Vargas-Cuellar, Maria Paula, Polanía-Sandoval, Camilo A., and Cabrera-Rivera, Paulo A.

Published
2024
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3. Inteligencia Artificial en Cirugía: Creación y validación de una calculadora colombiana de riesgo de mortalidad perioperatoria.

Author

Lozano-Suárez, Nicolás, Felipe Salamanca-Lozano, Juan, Andrés Cabrera-Rivera, Paulo, Briceño-Ayala, Leonardo, and Pérez-Rivera, Carlos J.

Subjects
*MACHINE learning, *BIVARIATE analysis, *MISSING data (Statistics), *LOGISTIC regression analysis, *SENSITIVITY & specificity (Statistics)
Abstract

Introduction: It is estimated that 4.2 million deaths occur annually within the first 30 postoperative days. The Lancet Commission on Global Surgery highlights the importance of measuring and reducing this mortality. This study developed a specific perioperative mortality calculator for the Colombian population, aiming to identify and intervene early in high-risk patients. Methods: Data from the multicenter ColSOS study were used, in which 3807 patients from 54 centers in Colombia were included. Clinical, sociodemographic, and perioperative variables were collected; missing data were handled with multiple imputations. Variable selection was performed through bivariate analysis, Lasso regression, and Recursive Feature Elimination (RFE). Predictive models were compared using logistic regression and XGBoost, evaluating their performance with cross-validation. Results: The XGBoost model was selected because of its superior sensitivity and fewer false negatives than logistic regression. The importance in predicting ASA classification, COPD, hemodynamic instability, and urgency of the procedure was highlighted. The model predicted mortality with an area under the curve (AUC) of 0.87. Conclusion: This study has developed the first perioperative mortality calculator designed for the Colombian population, including multiple surgical specialties. The selected machine learning model demonstrates sensitivity and specificity comparable to the best international tools. The implementation of this tool allows for early identification and management of patients at risk, which could improve surgical care in Colombia. [ABSTRACT FROM AUTHOR]

Published
2025
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4. Eficacia y seguridad de la dilatación esofágica endoscópica en un centro de referencia en Colombia: Un estudio de cohorte retrospectiva.

Author

Bolívar-Sáenz, Dínimo, Lara-Espinosa, Daniela, Staffelbach, Olenka, and Lozano-Suárez, Nicolás

Subjects
ESOPHAGEAL motility disorders, ESOPHAGEAL stenosis, ESOPHAGEAL perforation, DIGESTIVE system diseases, GASTROESOPHAGEAL reflux
Abstract

Copyright of Revista Colombiana de Cirugía is the property of Asociacion Colombiana de Cirugia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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5. Percepción de la donación de órganos en personal administrativo y personal asistencial en dos centros trasplantadores en Colombia.

Author

Guerrero Hernández, Rósemberg José, Andrea Cárdenas, Julieth, Herrera, Beandrina, Vannessa Parra, Cindy, Gutiérrez, Diana, Viviana Cifuentes, Martha, García-Lopez, Andrea, Gómez Montero, Andrea, Lozano-Suárez, Nicolás, and Girón-Luque, Fernando

Subjects
VIRTUAL work teams, MEDICAL personnel, ORGAN donation, HEALTH education, MEDICAL care
Abstract

Copyright of Colombian Journal of Nephrology / Revista Colombiana de Nefrología is the property of Colombian Association of Nephrology & Hypertension and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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10. Critical pathway for deceased donors: An analysis in three regions of Colombia.

Author

Cruz-Mususú, William, Orellano-Salas, Milena, Fernanda Vargas, Luisa, Escobar-Cháves, Ximena, García-López, Andrea, Lozano-Suárez, Nicolás, Gómez-Montero, Andrea, and Girón-Luque, Fernando

Subjects
ORGAN donation, TRANSPLANTATION of organs, tissues, etc., BRAIN death, ORGAN donors, CHI-squared test
Abstract

Copyright of Revista Colombiana de Cirugía is the property of Asociacion Colombiana de Cirugia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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11. Causas de contraindicación psicosocial de donante vivo de riñón en un centro trasplantador.

Author

Torres-Gutiérrez, Manuel, Julieth Galvis, Sonia, Lozano-Suárez, Nicolás, Ibarra Padilla, Marianella, Gómez Montero, Andrea, García-López, Andrea, and Girón-Luque, Fernando

Abstract

Copyright of Colombian Journal of Nephrology / Revista Colombiana de Nefrología is the property of Colombian Association of Nephrology & Hypertension and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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12. Relationship between HLA compatibility and graft loss in renal transplant from a deceased donor: An analysis by propensity score matching in Colombia.

Author

Lozano-Suárez, Nicolás, García-López, Andrea, Gómez-Montero, Andrea, and Girón-Luque, Fernando

Subjects
*PROPENSITY score matching, *KIDNEY transplantation, *GRAFT survival, *HLA histocompatibility antigens, *DEAD, *TRANSPLANTATION of organs, tissues, etc.
Abstract

Introduction. In Colombia, only 24% of patients on the waiting list received a renal transplant, most of them from cadaveric donors. HLA A-B-DR is considered for organ allocation, but recent evidence suggests that HLA A-B is not associated with transplant outcomes. The objective of this study was to evaluate the relevance of HLA A-B-DR on graft survival in kidney transplant recipients. Methods. Retrospective cohort study that included 1337 kidney transplant recipients with a cadaveric donor in Colombiana de Trasplantes from 2008 to 2023. A Propensity Score Matching (PSM) was applied to adjust the covariates in comparison groups for compatibility, and the relationship of HLA A-B-DR with kidney graft survival was evaluated using the log rank test and Cox regression. Results. There were 38.7% female patients, with median age of 47 years, and BMI 23.8 kg/m2. After adjusting the covariates with PSM for the comparison groups, HLA A-B matching was not significantly related to graft loss, with HR of 0.99 (95% CI 0.71-1.37) and 0.75 (95% CI 0.55-1.02), respectively. Only HLA DR matching was significant for graft loss with an HR of 0.67 (95% CI 0.46-0.98). Conclusions. This study suggests that HLA A-B matching does not significantly influence graft loss, whereas HLA DR matching does improve graft survival in renal transplantation with a cadaveric donor. [ABSTRACT FROM AUTHOR]

Published
2024
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14. Is Non-Adherence Associated with Adverse Outcomes in Kidney Transplant Recipients? The Role of Non-Adherence as a Risk and Predictor Factor for Graft Loss and Death.

Author

Torres-Gutiérrez, Manuel, Lozano-Suárez, Nicolás, Burgos-Camacho, Viviana A, Caamaño-Jaraba, Jessica, Gómez-Montero, Julia Andrea, García-López, Andrea, and Girón-Luque, Fernando

Subjects
*KIDNEY transplantation, *TREATMENT effectiveness, *GRAFT rejection, *ODDS ratio, *LOGISTIC regression analysis
Abstract

Introduction:  Non-adherence in kidney transplants is diversely defined. Immunosuppression non-adherence (INA) is the most used definition and has been associated with graft loss and acute rejection. But INA assesses only one fraction of adherence. Therefore, we analyzed the association of a holistic non-adherence definition with transplant outcomes and compared its prediction performance with other definitions.Methods:  We retrospectively included 739 kidney recipients between 2019 and 2021. We evaluated holistic non-adherence (HNA), suboptimal-immunosuppressor levels (SIL), appointment non-adherence (ANA), procedure non-adherence (PNA) and INA. The main outcomes were graft loss, graft rejection, and mortality. A backward logistic regression was performed estimating adjusted and un-adjusted odds ratio (OR) for each outcome. Finally, we compared the non-adherence definitions' prediction for the main outcomes using the area under the curve.Results: HNA was present in 28.7% of patients. Non-adherent patients had an adjusted OR of 2.66 (1.37– 5.15) for mortality, 6.44 for graft loss (2.71– 16.6), and 2.28 (1.15– 4.47) for graft rejection. INA and PNA presented a moderate discrimination for graft loss and HNA and ANA mild-to-moderate discrimination for graft loss and death.Conclusion: Holistic non-adherence was associated with worst outcomes in kidney recipients and had a significant prediction performance for graft loss and mortality. [ABSTRACT FROM AUTHOR]

Published
2023
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16. Perioperative mortality in Colombia: perspectives of the fourth indicator inThe LancetCommission on Global Surgery – Colombian Surgical Outcomes Study (ColSOS) – a protocol for a multicentre prospective cohort study

Author

Pérez-Rivera, Carlos J, primary, Lozano-Suárez, Nicolás, additional, Velandia-Sánchez, Alejandro, additional, Polanía-Sandoval, Camilo A, additional, García-Méndez, Juan P, additional, Idarraga-Ayala, Sharon V, additional, Corso-Ramírez, Julián M, additional, Conde-Monroy, Danny, additional, Cruz-Reyes, Danna L, additional, Durán-Torres, Carlos F, additional, Barrera-Carvajal, Juan G, additional, Rojas-Serrano, Luisa Fernanda, additional, Garcia-Zambrano, Laura Alejandra, additional, Agudelo-Mendoza, Silvia Valentina, additional, Briceno-Ayala, Leonardo, additional, and Cabrera-Rivera, Paulo A, additional

Published
2022
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18. Perioperative mortality in Colombia: perspectives of the fourth indicator in The Lancet Commission on Global Surgery - Colombian Surgical Outcomes Study (ColSOS) - a protocol for a multicentre prospective cohort study.

Author

Pérez-Rivera CJ, Lozano-Suárez N, Velandia-Sánchez A, Polanía-Sandoval CA, García-Méndez JP, Idarraga-Ayala SV, Corso-Ramírez JM, Conde-Monroy D, Cruz-Reyes DL, Durán-Torres CF, Barrera-Carvajal JG, Rojas-Serrano LF, Garcia-Zambrano LA, Agudelo-Mendoza SV, Briceno-Ayala L, and Cabrera-Rivera PA

Subjects
Humans, Adolescent, Adult, Colombia epidemiology, Sample Size, Hospital Mortality, Treatment Outcome, Observational Studies as Topic, Multicenter Studies as Topic, Prospective Studies
Abstract

Introduction: Death following surgical procedures is a global health problem, accounting for 4.2 million deaths annually within the first 30 postoperative days. The fourth indicator of The Lancet Commission on Global Surgery is essential as it seeks to standardise postoperative mortality. Consequently, it helps identify the strengths and weaknesses of each country's healthcare system. Accurate information on this indicator is not available in Colombia, limiting the possibility of interventions applied to our population. We aim to describe the in-hospital perioperative mortality of the surgical procedures performed in Colombia. The data obtained will help formulate public policies, improving the quality of the surgical departments., Methods and Analysis: An observational, analytical, multicentre prospective cohort study will be conducted throughout Colombia. Patients over 18 years of age who have undergone a surgical procedure, excluding radiological/endoscopic procedures, will be included. A sample size of 1353 patients has been projected to achieve significance in our primary objective; however, convenience sampling will be used, as we aim to include all possible patients. Data collection will be carried out prospectively for 1 week. Follow-up will continue until hospital discharge, death or a maximum of 30 inpatient days. The primary outcome is perioperative mortality. A descriptive analysis of the data will be performed, along with a case mix analysis of mortality by procedure-related, patient-related and hospital-related conditions ETHICS AND DISSEMINATION: The Fundación Cardioinfantil-Instituto de Cardiología Ethics Committee approved this study (No. 41-2021). The results are planned to be disseminated in three scenarios: the submission of an article for publication in a high-impact scientific journal and presentations at the Colombian Surgical Forum and the Congress of the American College of Surgeons., Trial Registration Number: NCT05147623., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)

Published
2022
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