María Amalia Matamoros Ramírez

Hepatobiliary Surgery and Transplantation

Pediatric Surgery

Patient Demographics: Babies, Children, Adult, Elderly

Book now Message

The information in this profile is responsability of the doctor

Make an appointment

Hospital CIMA.San Rafael, Escazú, San José, Costa Rica
Próspero Fernández Highway, San Rafael, Escazú, San José. Building Torre 1 CIMA. Floor 2. Office 208.
+506 6042 7070 / +506 4010 1704 / +506 4040 0349
More Info
Sat
07/25/26
Sun
07/26/26
Mon
07/27/26
Tue
07/28/26
Wed
07/29/26
Thu
07/30/26
Fri
07/31/26
Searching for availability...
Full schedule
Full schedule
Click on an hour to book an appointment or contact the clinic
- Clinic's Info
- Calendar
- Clinic's LocationLocation

Procedures (19)

General Inquiry

Cholecystectomy

Cryptorchidism Surgery

Diagnostic laparoscopy

Epigastric hernia surgery

Exploratory laparsocopy

Gallbladder surgery

Hisrchsprüng disease (congenital megacolon).

Intestinal Atresia Surgery

Laparoscopic appendectomy

Laparotomic cholecystectomy

Meckel's diverticulum surgery

Paracentesis

PICC Catheter placement type

probes thoracic

Small sized wound suture

Thumbnail Hickmann- Boviac type central catheter

Umbilical hernia surgery

Show all treatments

Medical conditions (6)

Appendicitis

Cancer in infants

Fatty liver

Gallbladder cancer

Gallstones

Liver cancer

Show all medical conditions

General Info

Languages

English, Español

Education

Degrees

Specialty in Pediatric Cirgury. Universidad de Costa Rica.

Fellowships

Transplant Surgery
Liver and Bile Duct Surgery

Courses

Master in Organ Coordination and Procurement

Trainings

Diploma Degree
Minimally Invasive Surgery - World Laparoscopy Hospital. New Delhi, India. 2010
Postgraduate Degree
Use and interpretation of Fibroscan - Hospital Clínic de Barcelona. Barcelona, Spain
Postgraduate Degree
Postgraduate Degree
Internship
Internship

Professional

Licenses

Physicians and Surgeons College of Costa Rica cod. MED4017Active
Medic and Surgeon - Costa Rica

Affiliations

Costa Rican Association of Surgery
College of Physicians and Surgeons of Costa Rica
The Transplantation Society

Publications

2025 Mueller TF, Matamoros MA, Danovitch GM, Nagral S. The End Kidney Deaths Act Risks Irreversible Harm to Organ Donation. JAMA. 2025;333(19):1663–1664.
2023 Aguirre-Villarreal D, Servin-Rojas M, Sánchez-Cedillo A, et al. Liver Transplantation in Latin America: Reality and Challenges. Lancet Reg Health Am. 2023;28:100633.
2022 Izzy M, Brown RS, Eguchi S, et al. Optimizing Pre-donation Physiologic Evaluation for Enhanced Recovery After Living Liver Donation — Systematic Review and Multidisciplinary Expert Panel Recommendations. Clin Transplant. 2022;36(10):e14680.
2021 Castro-Santa E, Siles-Víquez HD, Castro-Solano K, Brenes-González J, Matamoros MA. First Resection of a Cavoatrial Renal Tumor Thrombus in a Pediatric Patient in Central America. Case Rep Oncol. 2021;14(1):47–55.
2020 Castro-Santa E, Montero-Sanchez A, Robles-Segura A, et al. First Simultaneous and Synchronized Split-Liver Transplantation Involving Two Recipients and Three Surgeons in Costa Rica: A Case Report. Transplant Rep. 2020.
2019 Matamoros MA, Castro-Santa E. Organ Transplantation in Costa Rica. Transplantation. 2019;103(2):220–222.
2016 Salvalaggio P, Seda Neto J, Alves JA, et al. Consensus, Dilemmas, and Challenges in Living Donor Liver Transplantation in Latin America. Transplantation. 2016;100(6):1161–1164.
2002 Ringe B, Matamoros MA, et al. Graft Rupture after Living Donor Liver Transplantation. Transplant Proc. 2002.
2001 Egawa H, Inomata Y, Uemoto S, et al. Biliary Anastomotic Complications in 400 Living-Related Liver Transplantations. World J Surg. 2001;25(10):1300–1307.
Matamoros M. Mandatory Reporting of Suspicious Transplant-Related Cases. WCN 2026, Yokohama, Japan, March 27–31.
2025 Matamoros M. Neutralidad financiera en trasplante. XXVI Congreso Latinoamericano y del Caribe de Trasplante, Asunción, Paraguay, October 1–3.
2025 Matamoros M. SLANH and STALYC Meetings 2025: Realities of Incentives in Living and Deceased Donation. MESOT 2025, Ankara, Turkey, November 4–7.
2024 Matamoros M. Themes, Challenges and Next Steps — Latin America. Satellite Symposium: DICG Declaration of Istanbul — Impact and the Road Ahead. TTS 2024, Istanbul, Turkey, September 22–25.
2024 Matamoros M. Group D Reporter, Latin America. Workshop: Strengthening Organ Transplant Capacity in Low- and Middle-Income Countries. TTS 2024, Istanbul, Turkey, September 22–25.
2022 Matamoros M. Referencia mandatoria para trasplante. XXIV Congreso Nacional de la Sociedad Mexicana de Trasplantes, Acapulco, Mexico, September 28 – October 1.
2020 Matamoros M. The Main Obstacle to Increasing Organ Transplantation in Latin America. TTS Virtual Congress, Montreal, Canada, September 16.
2019 Matamoros M. Trata de personas con fines de extracción ilícita de órganos. Global Sustainability Network (GSN), Casa Pio IV, Vatican City, April 27.
2018 Matamoros M. The Costa Rican Trafficking Case. Pre-Congress Workshop, TTS 2018, Madrid, Spain, June 30 – July 5
2017 Matamoros M. Tráfico de órganos. Pontifical Academy of Sciences, Vatican City, February.
2012 Matamoros M. Hepatocarcinoma; Hipertensión portal; Manejo de metástasis de cáncer colorrectal; Trasplante en la región centroamericana (round table). X Congreso de Cirugía, Asociación Salvadoreña de Cirugía General, San Salvador, January 25–27.
2025 Mueller TF, Matamoros MA, Danovitch GM, Nagral S. The End Kidney Deaths Act Risks Irreversible Harm to Organ Donation. JAMA. 2025;333(19):1663–1664.
2023 Aguirre-Villarreal D, Servin-Rojas M, Sánchez-Cedillo A, et al. Liver Transplantation in Latin America: Reality and Challenges. Lancet Reg Health Am. 2023;28:100633.
2022 Izzy M, Brown RS, Eguchi S, et al. Optimizing Pre-donation Physiologic Evaluation for Enhanced Recovery After Living Liver Donation — Systematic Review and Multidisciplinary Expert Panel Recommendations. Clin Transplant. 2022;36(10):e14680.
2021 Castro-Santa E, Siles-Víquez HD, Castro-Solano K, Brenes-González J, Matamoros MA. First Resection of a Cavoatrial Renal Tumor Thrombus in a Pediatric Patient in Central America. Case Rep Oncol. 2021;14(1):47–55.
2020 Castro-Santa E, Montero-Sanchez A, Robles-Segura A, et al. First Simultaneous and Synchronized Split-Liver Transplantation Involving Two Recipients and Three Surgeons in Costa Rica: A Case Report. Transplant Rep. 2020.
2019 Matamoros MA, Castro-Santa E. Organ Transplantation in Costa Rica. Transplantation. 2019;103(2):220–222.
2016 Salvalaggio P, Seda Neto J, Alves JA, et al. Consensus, Dilemmas, and Challenges in Living Donor Liver Transplantation in Latin America. Transplantation. 2016;100(6):1161–1164.
2002 Ringe B, Matamoros MA, et al. Graft Rupture after Living Donor Liver Transplantation. Transplant Proc. 2002.
2001 Egawa H, Inomata Y, Uemoto S, et al. Biliary Anastomotic Complications in 400 Living-Related Liver Transplantations. World J Surg. 2001;25(10):1300–1307.
Matamoros M. Mandatory Reporting of Suspicious Transplant-Related Cases. WCN 2026, Yokohama, Japan, March 27–31.
2025 Matamoros M. Neutralidad financiera en trasplante. XXVI Congreso Latinoamericano y del Caribe de Trasplante, Asunción, Paraguay, October 1–3.
2025 Matamoros M. SLANH and STALYC Meetings 2025: Realities of Incentives in Living and Deceased Donation. MESOT 2025, Ankara, Turkey, November 4–7.
2024 Matamoros M. Themes, Challenges and Next Steps — Latin America. Satellite Symposium: DICG Declaration of Istanbul — Impact and the Road Ahead. TTS 2024, Istanbul, Turkey, September 22–25.
2024 Matamoros M. Group D Reporter, Latin America. Workshop: Strengthening Organ Transplant Capacity in Low- and Middle-Income Countries. TTS 2024, Istanbul, Turkey, September 22–25.
2022 Matamoros M. Referencia mandatoria para trasplante. XXIV Congreso Nacional de la Sociedad Mexicana de Trasplantes, Acapulco, Mexico, September 28 – October 1.
2020 Matamoros M. The Main Obstacle to Increasing Organ Transplantation in Latin America. TTS Virtual Congress, Montreal, Canada, September 16.
2019 Matamoros M. Trata de personas con fines de extracción ilícita de órganos. Global Sustainability Network (GSN), Casa Pio IV, Vatican City, April 27.
2018 Matamoros M. The Costa Rican Trafficking Case. Pre-Congress Workshop, TTS 2018, Madrid, Spain, June 30 – July 5
2017 Matamoros M. Tráfico de órganos. Pontifical Academy of Sciences, Vatican City, February.
2012 Matamoros M. Hepatocarcinoma; Hipertensión portal; Manejo de metástasis de cáncer colorrectal; Trasplante en la región centroamericana (round table). X Congreso de Cirugía, Asociación Salvadoreña de Cirugía General, San Salvador, January 25–27.
2025 Mueller TF, Matamoros MA, Danovitch GM, Nagral S. The End Kidney Deaths Act Risks Irreversible Harm to Organ Donation. JAMA. 2025;333(19):1663–1664.
2023 Aguirre-Villarreal D, Servin-Rojas M, Sánchez-Cedillo A, et al. Liver Transplantation in Latin America: Reality and Challenges. Lancet Reg Health Am. 2023;28:100633.
2022 Izzy M, Brown RS, Eguchi S, et al. Optimizing Pre-donation Physiologic Evaluation for Enhanced Recovery After Living Liver Donation — Systematic Review and Multidisciplinary Expert Panel Recommendations. Clin Transplant. 2022;36(10):e14680.
2021 Castro-Santa E, Siles-Víquez HD, Castro-Solano K, Brenes-González J, Matamoros MA. First Resection of a Cavoatrial Renal Tumor Thrombus in a Pediatric Patient in Central America. Case Rep Oncol. 2021;14(1):47–55.
2020 Castro-Santa E, Montero-Sanchez A, Robles-Segura A, et al. First Simultaneous and Synchronized Split-Liver Transplantation Involving Two Recipients and Three Surgeons in Costa Rica: A Case Report. Transplant Rep. 2020.
2019 Matamoros MA, Castro-Santa E. Organ Transplantation in Costa Rica. Transplantation. 2019;103(2):220–222.
2016 Salvalaggio P, Seda Neto J, Alves JA, et al. Consensus, Dilemmas, and Challenges in Living Donor Liver Transplantation in Latin America. Transplantation. 2016;100(6):1161–1164.
2002 Ringe B, Matamoros MA, et al. Graft Rupture after Living Donor Liver Transplantation. Transplant Proc. 2002.
2001 Egawa H, Inomata Y, Uemoto S, et al. Biliary Anastomotic Complications in 400 Living-Related Liver Transplantations. World J Surg. 2001;25(10):1300–1307.
Matamoros M. Mandatory Reporting of Suspicious Transplant-Related Cases. WCN 2026, Yokohama, Japan, March 27–31.
2025 Matamoros M. Neutralidad financiera en trasplante. XXVI Congreso Latinoamericano y del Caribe de Trasplante, Asunción, Paraguay, October 1–3.
2025 Matamoros M. SLANH and STALYC Meetings 2025: Realities of Incentives in Living and Deceased Donation. MESOT 2025, Ankara, Turkey, November 4–7.
2024 Matamoros M. Themes, Challenges and Next Steps — Latin America. Satellite Symposium: DICG Declaration of Istanbul — Impact and the Road Ahead. TTS 2024, Istanbul, Turkey, September 22–25.
2024 Matamoros M. Group D Reporter, Latin America. Workshop: Strengthening Organ Transplant Capacity in Low- and Middle-Income Countries. TTS 2024, Istanbul, Turkey, September 22–25.
2022 Matamoros M. Referencia mandatoria para trasplante. XXIV Congreso Nacional de la Sociedad Mexicana de Trasplantes, Acapulco, Mexico, September 28 – October 1.
2020 Matamoros M. The Main Obstacle to Increasing Organ Transplantation in Latin America. TTS Virtual Congress, Montreal, Canada, September 16.
2019 Matamoros M. Trata de personas con fines de extracción ilícita de órganos. Global Sustainability Network (GSN), Casa Pio IV, Vatican City, April 27.
2018 Matamoros M. The Costa Rican Trafficking Case. Pre-Congress Workshop, TTS 2018, Madrid, Spain, June 30 – July 5
2017 Matamoros M. Tráfico de órganos. Pontifical Academy of Sciences, Vatican City, February.
2012 Matamoros M. Hepatocarcinoma; Hipertensión portal; Manejo de metástasis de cáncer colorrectal; Trasplante en la región centroamericana (round table). X Congreso de Cirugía, Asociación Salvadoreña de Cirugía General, San Salvador, January 25–27.