State-of-the-art evidence in the treatment of systemic sclerosis
normal pulmonary artery :: Article Creator PAH Clinical Worsening Associated With Fewer Fingernail Capillaries Having fewer very fine blood vessels in the fold of skin at the base of the fingernails appears to be linked to an increased risk of clinical worsening in pulmonary arterial hypertension (PAH), a study in the Netherlands suggests. People with chronic thromboembolic pulmonary hypertension (CTEPH) also had fewer fine blood vessels, called capillaries, in their nail folds than healthy people, but this didn't change after a surgical procedure to relieve high blood pressure in their lungs. This suggests a loss of capillaries isn't unique to PAH or directly caused by how the disease affects blood flow. Instead, shared mechanisms may cause changes to both the pulmonary arteries that supply the lungs and the capillaries throughout the body. The study, "Low nailfold capillary density in patients with pulmonary arterial hypertensio...