Children's Hospital Colorado

Colorectal and Urogenital Care Research

Established by Alberto Peña, MD, the pioneer of the posterior sagittal anorectoplasty (PSARP) – also known as the pull-through procedure – our team of colorectal and urogenital surgeons approach research with the optimum future of patients in mind.

The International Center for Colorectal and Urogenital Care hosts the largest database of patients with congenital colorectal and urogenital conditions in the world. We are committed to advancing the field through continuous research on long-term follow up, surgical outcomes, prenatal diagnosis, reproductive and sexual function, as well as innovation.

Pediatric colorectal surgeons Andrea Bischoff, MD, and Alberto Peña, MD, meet Linda Sibilia’s son, Benjamin Nieto. Linda was born with a urogenital malformation called cloaca, which Dr. Peña reconstructed 30 years ago.
Research article

Colorectal surgeons Drs. Alberto Peña and Andrea Bischoff operate on the ethos that kids born with urogenital malformations need consistent care throughout their lives.

Colorectal and Urogenital Care research advancements

By constantly sharing our research, we believe we can improve and advance colorectal care beyond the limits of our hospital and have a more significant impact on the health of children with congenital colorectal and urogenital conditions.

"Our database contains over 3,000 surgical repairs of colorectal and urogenital conditions. Having the largest database in the world offers a treasure and allows us to predict the functional prognosis of patients early in life as well as identify patients at risk."

Alberto Peña, MD

Director, International Center for Colorectal and Urogenital Care

Colorectal professional education videos

In these short videos, our experts offer insights into the advanced treatments and specialized clinical care they provide at our hospital.

Dr. Alberto Peña is a recipient of the 2018 Robert E. Gross Award for Excellence in Pediatric Research and Achievement

Dr. Peña received the American Pediatric Surgical Association (APSA) Robert E. Gross Award for Excellence in Pediatric Research and Achievement. This award recognizes a seminal contribution by an individual who has made a major impact on pediatric surgery.

Dr. Peña's contributions have focused on improvements in medical and surgical care for patients suffering with anorectal malformations, cloacal malformations and a variety of other congenital anomalies of the pelvis and abdominal wall, Hirschsprung disease, and associated urological, gynecologic and other abdominopelvic malformations. He has also focused on the common problems of constipation, incontinence and other intestinal motility issues that often occur in children with these malformations.

Learn more about Dr. Alberto Peña's research.

What our colorectal surgery research means for kids

With a focus on surgical reconstruction and long-term outcomes of children born with colorectal and urogenital congenital problems and associated malformations, we not only implement the most advanced treatment of these conditions, but we educate and collaborate with providers around the world. This ongoing collaboration helps to ensure every child can have the best functional prognosis and improved quality of life.

Learn more about the International Center for Colorectal and Urogenital Care.

Contact us at 720-777-9880 or

Stay informed