3,670 research outputs found
Presidential Address: The Power of Data Utilization in Bringing About Systemic School Change
Presidential Addres
Conference Highlights: The 1999 Annual Meeting of the Mid-Western Educational Research Association
Conference Highlight
The utility of pulse volume waveforms in the identification of lower limb arterial insufficiency
Background: The ankle brachial index is widely
used for non-invasive assessment of lower limb
arterial status, but has recognised limitations.
The most significant limitation involves arterial
calcification, which results in artefactually raised
occlusion pressures and uninformative ankle
brachial indices.
Hypothesis: Analysis of the pulse volume waveform is useful for identification of lower limb
arterial insufficiency in the presence of arterial
calcification.
Method: Individuals (n = 1101) registered at a
Welsh general practice were invited to undergo
cardiovascular risk assessment. The ankle brachial index was measured using an automated
device utilising volume plethysmography and the
traditional Doppler ultrasound method.
Results: Eight percent of participants (30/368)
had an ankle brachial index *1.3, suggesting
possible arterial calcification; consideration of
the pulse volume waveform in these cases identified possible mild peripheral arterial disease in
three cases (10%). Furthermore, in one case, the
ankle brachial indices were within the normal
range, but the pulse volume waveforms suggested a moderate degree of arterial insufficiency; this participant was subsequently diagnosed with bilateral superficial femoral artery
stenoses and treated accordingly.
Conclusion: Pulse volume waveforms can be
easily utilised as an adjunct to ankle brachial
index measurement to identify patients who may
benefit from further vascular assessment and
interventio
Current utility of the ankle-brachial index (ABI) in general practice: implications for its use in cardiovascular disease screening
Peripheral arterial disease (PAD) is a marker of systemic atherosclerosis and associated with a three to six fold increased risk of death from cardiovascular causes. Furthermore, it is typically asymptomatic and under-diagnosed; this has resulted in escalating calls for the instigation of Primary Care PAD screening via Ankle Brachial Index (ABI) measurement. However, there is limited evidence regarding the feasibility of this and if the requisite core skills and knowledge for such a task already exist within primary care. This study aimed to determine the current utility of ABI measurement in general practices across Wales, with consideration of the implications for its use as a cardiovascular risk screening tool
The utility of pulse volume waveforms in the identification of lower limb arterial insufficiency
Background: The ankle brachial index is widely
used for non-invasive assessment of lower limb
arterial status, but has recognised limitations.
The most significant limitation involves arterial
calcification, which results in artefactually raised
occlusion pressures and uninformative ankle
brachial indices.
Hypothesis: Analysis of the pulse volume waveform is useful for identification of lower limb
arterial insufficiency in the presence of arterial
calcification.
Method: Individuals (n = 1101) registered at a
Welsh general practice were invited to undergo
cardiovascular risk assessment. The ankle brachial index was measured using an automated
device utilising volume plethysmography and the
traditional Doppler ultrasound method.
Results: Eight percent of participants (30/368)
had an ankle brachial index *1.3, suggesting
possible arterial calcification; consideration of
the pulse volume waveform in these cases identified possible mild peripheral arterial disease in
three cases (10%). Furthermore, in one case, the
ankle brachial indices were within the normal
range, but the pulse volume waveforms suggested a moderate degree of arterial insufficiency; this participant was subsequently diagnosed with bilateral superficial femoral artery
stenoses and treated accordingly.
Conclusion: Pulse volume waveforms can be
easily utilised as an adjunct to ankle brachial
index measurement to identify patients who may
benefit from further vascular assessment and
interventio
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