Jean Dussault

Jean Dussault

Jean Dussault, Canadian endocrinologist

Birth date	1941
Birth place	Quebec, Canada
Died	2003
Place of death	Quebec, Canada
Nationality	Canadian
Known for	Neonatal screening for congenital hypothyroidism

Jean Dussault (1941–2003) was a pioneering Canadian endocrinologist renowned for his groundbreaking work in the field of neonatal screening for congenital hypothyroidism. His contributions have had a lasting impact on public health, significantly reducing the incidence of mental retardation associated with untreated congenital hypothyroidism in newborns.

Early Life and Education

Jean Dussault was born in 1941 in Quebec, Canada. He pursued his medical education at Laval University, where he developed a keen interest in endocrinology. After completing his medical degree, Dussault continued his training in pediatric endocrinology, focusing on thyroid disorders.

Career and Research

Dussault's most notable contribution to medicine was the development of a neonatal screening program for congenital hypothyroidism. Prior to his work, congenital hypothyroidism often went undiagnosed until significant developmental delays had occurred. Dussault's research demonstrated that early detection and treatment could prevent these adverse outcomes.

In the early 1970s, Dussault developed a simple and effective method for screening newborns for hypothyroidism using a blood sample taken from a heel prick. This test measures the levels of thyroid-stimulating hormone (TSH) in the blood, which are elevated in infants with hypothyroidism. His work led to the implementation of widespread neonatal screening programs across Canada and eventually worldwide.

Impact and Legacy

The introduction of neonatal screening for congenital hypothyroidism has been hailed as one of the major public health achievements of the 20th century. Dussault's work has prevented countless cases of intellectual disability and improved the quality of life for many children.

Dussault's contributions were recognized with numerous awards and honors, including his election as a Fellow of the Royal Society of Canada. He also served as a professor at Laval University, where he mentored many students and continued his research in endocrinology.

Personal Life

Jean Dussault was known for his dedication to his work and his passion for improving child health. He passed away in 2003, leaving behind a legacy of innovation and compassion.

Also see

• Congenital hypothyroidism
• Neonatal screening
• Thyroid-stimulating hormone
• Endocrinology
• Laval University