12/01/2026
💜 🖤 PHAEurope pays tribute to Denneys Niemandt, founder of the PH Association of South Africa, a PH patient, and a global leader and patient advocate from South Africa.
Denneys Niemandt was a pioneer, advocate, and tireless fighter for people living with pulmonary hypertension in South Africa. Diagnosed in 2006 after years of unexplained symptoms and misdirection, he faced the frightening reality of PH while fearing he might not live to see his children grow up. At the time of his diagnosis he was only one of ten known cases of PH in South Africa. Instead of retreating, Denneys chose to act. In 2008, he founded the Pulmonary Hypertension Association of South Africa, becoming a leading voice in a region where PH was little known, underdiagnosed, and often misunderstood. He fought relentlessly for access to proper medication, greater awareness among healthcare professionals, and the recognition of key contributors in Africa such as HIV-related PH. He also pushed for the creation of a national PH registry, understanding that data and visibility are essential for change.
Even when cancer forced him to step down from formal leadership, Denneys never stopped advocating. His strength, persistence, and compassion left a lasting mark on patients, families, and the wider PH community. Denneys will be remembered for his courage, his commitment to justice in healthcare, and his unwavering belief that every PH patient deserves to be seen, diagnosed early, and treated with dignity.
PHAEurope extends its sincere condolences to Denney’s family, loved ones, and the entire PH community of South Africa.🖤
Pulmonary Hypertension Association of South Africa