The International Late Effects of Childhood Cancer Guideline Harmonization Group, IGHG, is a collaborative endeavor, founded in 2010. The IGHG develops international guidelines for the long-term follow-up of childhood, adolescent, and young adult cancer survivors.
International collaboration has key advantages in terms of reducing duplication of efforts, optimizing the use of expertise, and identifying gaps in knowledge.


Our main goal is to establish a common vision and integrated strategy for the surveillance of chronic health problems in childhood, adolescent, and young adult cancer survivors.
We aim to:

  • Promote healthy lifestyles
  • Provide ongoing monitoring of health status
  • Facilitate early detection of late effects
  • Advise about timely intervention strategies to preserve health

Accomplishments to date

  • Guideline for breast cancer surveillance, published in The Lancet Oncology
  • Guideline for cardiomyopathy surveillance, published in The Lancet Oncology
  • Guideline for premature ovarian insufficiency surveillance, published in the Journal of Clinical Oncology
  • Guideline for male gonadotoxicity surveillance, published in The Lancet Oncology
  • Guidelines for thyroid cancer surveillance, published in Cancer Treatment Reviews
  • Guidelines for ototoxicity, published in The Lancet Oncology
  • Guidelines for central nervous system neoplasms, coronary artery disease, obstetric care, hypothalamic-pituitary dysfunction, metabolic syndrome, pulmonary toxicity, fatigue, mental health and psychosocial problems, bone abnormaloties, nephrotoxicity, thyroid dysfunction, neurocognitive abnormalities and gastrointestinal neoplasms surveillance, in progress

With the initiation of the IGHG we have made a commitment to collaborative guideline development with the ultimate goal of optimizing quality of care and improving quality of life for childhood, adolescent, and young adult cancer survivors.

We welcome all individuals who are willing to contribute to the initiative.