Jean-François Bouley (Bouley jeune). Pioneer investigator in intermittent claudication.

The research article is an historical exploration of early pathology investigations into the causes of intermittent claudication, a condition characterized by cramping pain in the leg muscles, which were first examined in horses by veterinarian Jean-Francois Bouley in 1831.

Research Background

• The research article primarily focuses on the early investigations into the causes of intermittent claudication, primarily caused by obstructed blood flow to the legs, which results in muscular changes that lead to limping.
• The research gives much emphasis on Jean-François Bouley, a pioneer veterinarian who conducted the first pathological studies on this condition in horses in 1831.

Bouley’s Findings

• In his early studies, Bouley found that obstructive blood clots in femoral arteries (main arteries in the thigh) were responsible for the muscular changes that caused the horses to limp.
• Almost three decades after Bouley’s work, in 1858, his research was drawn upon by famous neurologist Charcot to understand the mechanism of claudication in humans.

Links to Human Claudication

• The researcher sheds light on Charcot’s application of Bouley’s work to a human case, where a soldier developed a traumatic aneurysm, clotting, and leg ischemia (an inadequate supply of blood) following a gunshot wound.
• It should be noted that Bouley’s findings in horses and the case studied by Charcot were not the first medically reported cases of human claudication caused by vascular occlusive disease. This distinction belongs to a case reported by Barth in 1835.

Further Developments

• Later, in 1911, Dejerine hypothesized that the disease in horses was due to parasitic roundworms invading the vessels.
• Dejerine had earlier attributed some cases of human claudication to impaired circulation in the spinal cord.
• However, this study notes that Verbiest only managed to corroborate Dejerine’s ascription in 1949 when he developed the concept of spinal stenosis – a narrowing of the spinal canal that can cause claudication – helping to explain one type of human claudication.