Houston Cardiac Association
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Diagnostic Testing
HCA’s state of the art diagnostic testing center is patient focused and will save you both time and money.
Treatment Programs
Non-Invasive office procedures to assist you on your road to recovery. Minimally invasive hospital procedures help to bring you to a new level of health.
Trials & Participation
HCA Research, in keeping with the cutting edge of medicine, is involved with multiple pharmaceutical and device related research studies. Click above for more information.
Patient Education
Education is KEY. We are here to help you take control of your health and life by providing the information necessary to make better decisions.

Pain in the Limbs

Pain may occur when tissues do not get enough blood (a condition called ischemia). Pain occurs because the tissues do not get enough oxygen, which is carried to tissues by the blood, and because waste products, which are carried away from tissues by the blood, accumulate.

If blood flow is completely blocked, as from a blood clot in a large artery, severe constant pain occurs suddenly, and the affected arm or leg becomes pale and cool. If blood flow is only partly blocked, as may occur with atherosclerosis (usually a problem in the legs), the person usually feels a tightening, fatiguing pain in the calf muscle during physical activity. This pain, called claudication, is rapidly relieved by rest and comes back during similar activity.

Pain in the limbs may also result from strained muscles, injury to certain nerves near the spinal cord, formation of blood clots in veins (venous thrombosis), or skin or muscle infections. If the doctor suspects that the pain is caused by a blood vessel disorder, ultrasonography to evaluate blood flow in the affected area may be done.

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