Blood Pressure Measurement With Doppler Ultrasonic Flowmeter

Kazamias, Thomas M.; Gander, M; Franklin, Dean; Ross, Jr J

doi:10.1097/00132586-197204000-00031

Cited by 3 publications

(3 citation statements)

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“…The presence of PAD was evaluated by measuring the systolic blood pressure level of the posterior tibial artery at both the left and right leg using an 8-MHz continuous-wave Doppler probe (Huntleigh 500 D, Huntleigh Technology) and a random-zero sphygmomanometer. [12][13][14][15][16] For each leg, a single blood pressure reading was taken with the subject in the supine position. The ratio of the systolic blood pressure at the ankle to the systolic blood pressure at the arm (ie, AAI) was calculated for each leg.…”

Section: Methodsmentioning

confidence: 99%

Peripheral Arterial Disease in the Elderly

Meijer

Hoes

Rutgers

et al. 1998

ATVB

677

443

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Abstract-To assess the age-and sex-specific prevalence of peripheral arterial disease (PAD) and intermittent claudication (IC) in an elderly population, we performed a population-based study in 7715 subjects (40% men, 60% women) aged 55 years and over. The presence of PAD and IC was determined by measuring the ankle-arm systolic blood pressure index (AAI) and by means of the World Health Organization/Rose questionnaire, respectively. PAD was considered present when the AAI was Ͻ0.90 in either leg. The prevalence of PAD was 19.1% (95% confidence interval, 18.1% to 20.0%): 16.9% in men and 20.5% in women. Symptoms of IC were reported by 1.6% (95% confidence interval, 1.3% to 1.9%) of the study population (2.2% in men, 1.2% in women). Of those with PAD, 6.3% reported symptoms of IC (8.7% in men, 4.9% in women), whereas in 68.9% of those with IC an AAI below 0.90 was found. Subjects with an AAI Ͻ0.90 were more likely to be smokers, to have hypertension, and to have symptomatic or asymptomatic cardiovascular disease compared with subjects with an AAI of 0.90 or higher. The authors conclude that the prevalence of PAD in the elderly is high whereas the prevalence of IC is rather low, although both prevalences clearly increase with advancing age. Key Words: atherosclerosis Ⅲ elderly Ⅲ intermittent claudication Ⅲ peripheral arterial disease Ⅲ cardiovascular risk P eripheral arterial disease refers to the manifestation of atherosclerosis in the lower limb distal to the aortic bifurcation. When PAD becomes symptomatic, patients often present with complaints of IC: "cramping," "fatigue," or "aching" in the calf of the leg, induced by walking and relieved by standing still. In Ϸ25% of patients with IC, there is a progression to critical ischemia, eg, rest pain and gangrene, that may eventually necessitate amputation. 1,2Several studies have demonstrated that patients with PAD, both with and without symptoms of IC, [3][4][5] are at an increased risk of cardiovascular morbidity and mortality compared with subjects without PAD. 4,6 -9 In comparison to the number of reports on other manifestations of atherosclerotic disease, however, relatively few population-based studies on the prevalence of PAD and IC have been performed. We assessed the prevalence of PAD and IC in a large population-based study including 7715 subjects aged 55 years and over. MethodsThis study is part of The Rotterdam Study, a prospective follow-up study designed to investigate determinants of the occurrence and progression of chronic diseases in the elderly. Emphasis is on four areas of research: cardiovascular diseases, neurogeriatric diseases, locomotor diseases, and ophthalmologic diseases. The rationale and design of the study have been described previously. 10All individuals aged 55 years and over living in a suburb of Rotterdam, the Netherlands (a total of 10 275 subjects), were invited to participate in the Rotterdam Study. Baseline measurements were compiled after an extensive interview at the participant's home and two visits to the research cente...

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Section: Methodsmentioning

confidence: 99%

Peripheral Arterial Disease in the Elderly

Meijer

Hoes

Rutgers

et al. 1998

ATVB

677

443

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“…Zusätzlich angewandt werden daher häufig klinische Untersuchungsmethoden wie die periphere Pulspalpation, die in der Regel eine höhere Sensitivität, aber eine geringere Spezifität als standardisierte Fragebögen besitzt. Der beste und preisgünstige nichtinvasive apparative Test ist die cw-Dopplersonographie zur Messung des systolischen Blutdruckes am Arm und am Knöchel und hieraus resultierend die Kalkulation des Knöchel-Arm-Druckindexes (22,34). In den meisten vorliegenden Studien wird eine AVK ab einem Knöchel-Arm-Index von ≤ 0,9 als diagnostiziert betrachtet.…”

Section: Methoden Zur Erfassung Der Asymptomatischen Und Symptomatiscunclassified

Epidemiologie und Prävention der arteriellen Verschlusskrankheit

Schulte¹

2001

Phlebologie

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ZusammenfassungDie Prävalenz der arteriellen Verschlusskrankheit (AVK) und das assoziierte kardiovaskuläre Morbiditäts- und Mortalitätsrisiko werden häufig unterschätzt. Die AVK ist zu 90% durch eine Atherosklerose verursacht, die selten isoliert in den Beinen zu finden ist. Die Prävalenz der symptomatischen Erkrankung liegt unabhängig vom Geschlecht bei 4,5% ab einem Alter von 55 Jahren. Hingegen ist die Prävalenz der asymptomatischen AVK bei über 20% anzusetzen. Die 5-Jahres-Mortalitätsrate von männlichen Patienten mit einer AVK beträgt 5-17%, die Lebenserwartung ist um 10 Jahre verkürzt. Haupttodesursachen sind kardiale sowie zerebrale Erkrankungen. Dies unterstreicht die hohe Koinzidenz von AVK, koronarer Herzkrankheit und zerebralen Gefäßerkrankungen. Die Empfehlungen zur Behandlung der Risikofaktoren für eine AVK weisen auf ihre Bedeutung hin. Neben einer strikten Nikotinkarenz und frühzeitigen Thrombozytenfunktionshemmung sollten nichtpharmakologisch und medikamentös Diabetes mellitus (Nüchternglukose 80-120 mg%; HbA1c <7%), Hyperlipoproteinämie (LDL-Cholesterin <100 mg%) und arterielle Hypertonie (<130/85 mmHg) behandelt werden. Die Bedeutung einer Hyperhomocysteinämie und Hyperfibrinogenämie ist bekannt, der präventive Nutzen ihrer Therapie jedoch nicht bewiesen. Als weitere präventiv wirksame Maßnahmen sind Gewichtsnormalisierung und Ausdauertraining zu nennen.

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“…Some researchers have focused in the ultrasound-based method, which detect the changes in vessel diameter in arteries through the Doppler effect. However, this method has a rather high sensor cost and may have a huge impact in the life of the users [2]. Another indirect monitoring method, the volume-compensation method, has been shown to be stable and accurate.…”

Section: Introductionmentioning

confidence: 99%

Continuous Blood Pressure Monitoring Method Based on Multiple Photoplethysmography Features

Huang

et al. 2021

Computer Methods in Medicine and Health Care

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Continuous blood pressure monitoring is of great significance for the prevention and early diagnosis of cardiovascular diseases. However, the existing continuous blood pressure monitoring methods, especially the sleeveless blood pressure monitoring methods, are complex and computationally heavy. In this paper, we propose a method, using plethysmography (PPG) signals alone, to estimate continuous blood pressure by extracting multiple PPG features related to intravascular blood flow characteristics. The performance of our method was evaluated using ten minutes synchronized PPG signals and continuous blood pressure from 21 healthy volunteers and 19 patients with hypertension and diabetes. The test results have shown that the absolute mean errors and standard deviation errors between the estimated and referenced blood pressure are 3.22±0.66 mmHg for systolic blood pressure and 2.11±1.11 mmHg for diastolic blood pressure, which meet AAMI (the association for the advancement of medical instrumentation) error acceptance.

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Blood Pressure Measurement With Doppler Ultrasonic Flowmeter

Cited by 3 publications

References 0 publications

Peripheral Arterial Disease in the Elderly

Peripheral Arterial Disease in the Elderly

Epidemiologie und Prävention der arteriellen Verschlusskrankheit

Continuous Blood Pressure Monitoring Method Based on Multiple Photoplethysmography Features

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