Degenerative findings had a greater effect on patients' walking capacity than stenotic findings. Turbulence is also common in pathological conditions such as heart murmurs and stenotic heart valves. Valvuloplasty is the widening of a stenotic valve using a balloon catheter. This platelet plug grows into a thrombus, resulting in a stenotic artery. Stenotic nares can usually be diagnosed on visual inspection. Theodore Tuffier widened a stenotic (narrowed) aortic valve. Some pugs are also born with stenotic nares which can also inhibit their breathing. The stenotic areas tend to become more stable despite increased flow velocities at these narrowings. Stenotic comes from the Greek word "stenos," meaning narrow.