Vascular Doppler Recorder Products
In stock
Reconfirm the price with seller
- Customer pickup,
- Courier
- In detail
Products of other enterprises
Description
A Closer Look At Non-Invasive Testing Methods For PAD
Whenever one suspects Peripheral Arterial Disease (PAD), the clinician must perform the five non-invasive vascular testing methods that are commercially available and widely implemented. They include the ankle brachial index ABI), the toe-brachial index(TBI), pulse volume recording(PVR), transcutaneous oxygen monitoring(TCPO2) and skin perfusion pressure(SPP).
Ankle Brachial Index:
The ankle brachial index is the most well-known, non-invasive vascular testing tool. ABI test is performed with a Doppler and a blood pressure cuff. One calculates the ABI by dividing the ankle pressure by the brachial systolic pressure. An ABI of <0.9 is abnormal and ABI values have a linear correlation with wound healing potential in lower extremity wounds. Patients with DM may have calcified and hardened lower extremity arterial walls that cannot be readily compressed and occluded with blood pressure cuffs. This produces falsely elevated ankle pressure readings that are often in the "normal ABI range" (0.9 to 1.2) or sometimes in the non-physiological range of above 1.3.
Pros.: The ABI is a relatively quick and cost-effective test for screening of PAD with known sensitivity and specificity of 90 percent or higher.
Cons.: Calcified leg arteries in DM or dialysis patients may yield falsely elevated ABI results.
Toe-Brachial Index:
One would calculate TBI by dividing the blood pressure of the great toe by the systolic brachial blood pressure. Toe pressure of > 50mmHg is considered normal. Toe pressure < 30 mmHg is considered severely ischemic.
Pros.: The digital arteries in great toes are considered to be less affected by medial arterial calcification.
Cons.: There are site limitations such as the inability to measure toe pressure due to toe wounds or toe amputation.
Whenever one suspects Peripheral Arterial Disease (PAD), the clinician must perform the five non-invasive vascular testing methods that are commercially available and widely implemented. They include the ankle brachial index ABI), the toe-brachial index(TBI), pulse volume recording(PVR), transcutaneous oxygen monitoring(TCPO2) and skin perfusion pressure(SPP).
Ankle Brachial Index:
The ankle brachial index is the most well-known, non-invasive vascular testing tool. ABI test is performed with a Doppler and a blood pressure cuff. One calculates the ABI by dividing the ankle pressure by the brachial systolic pressure. An ABI of <0.9 is abnormal and ABI values have a linear correlation with wound healing potential in lower extremity wounds. Patients with DM may have calcified and hardened lower extremity arterial walls that cannot be readily compressed and occluded with blood pressure cuffs. This produces falsely elevated ankle pressure readings that are often in the "normal ABI range" (0.9 to 1.2) or sometimes in the non-physiological range of above 1.3.
Pros.: The ABI is a relatively quick and cost-effective test for screening of PAD with known sensitivity and specificity of 90 percent or higher.
Cons.: Calcified leg arteries in DM or dialysis patients may yield falsely elevated ABI results.
Toe-Brachial Index:
One would calculate TBI by dividing the blood pressure of the great toe by the systolic brachial blood pressure. Toe pressure of > 50mmHg is considered normal. Toe pressure < 30 mmHg is considered severely ischemic.
Pros.: The digital arteries in great toes are considered to be less affected by medial arterial calcification.
Cons.: There are site limitations such as the inability to measure toe pressure due to toe wounds or toe amputation.
Contact the seller
Vascular Doppler Recorder Products
We recommend to see