The Brezinski’s idea of using Pad e-type approximants to estimate errors of Pad e approximants is considerably developed. A new, more e ective method based on this idea is presented and illustrated by numerical examples. c © 1998 Elsevier Science B.V. All rights reserved. AMS classi cation: 41A21

Because patients with peripheral arterial disease (PAD) may be asymptomatic or may present with atypical symptoms or findings, the true population prevalence of PAD is essentially unknown. We used four highly reliable, sophisticated noninvasive tests (segmental blood pressure, flow velocity by Doppler ultrasound, postocclusive reactive hyperemia, and pulse reappearance halftime) to assess the p...

Although poor walking is the most common symptom of peripheral artery disease (PAD), reported results are inconsistent when comparing gait parameters between PAD patients and healthy controls. This inconsistency may be due to frailty, which is highly prevalent among PAD patients. To address this hypothesis, 41 participants, 17 PAD (74±8 years) and 24 aged-matched controls (76±7 years), were rec...

Background. Little is known on the prevalence of peripheral artery disease (PAD) in developing countries. Study design. Population-based study in Atahualpa. In Phase I, the Edinburgh claudication questionnaire (ECQ) was used for detection of suspected symptomatic PAD; persons with a negative ECQ but a pulse pressure ≥65 mmHg were suspected of asymptomatic PAD. In Phase II, the ankle-brachial in...

The vibrissal system of the rat is an example of active tactile sensing, and has recently been used as a prototype in construction of touch-oriented robots. Active vibrissal exploration and touch are enabled and controlled by musculature of the mystacial pad. So far, knowledge about motor control of the rat vibrissal system has been extracted from what is known about the vibrissal systems of ot...

BACKGROUND The purpose of this study was to determine whether peripheral arterial disease (PAD) subjects have impaired balance and a higher prevalence of falls than non-PAD controls and to determine whether balance and falls are related to the severity of PAD and functional status. METHODS A total of 367 PAD subjects (aged 68 +/- 1 years; mean +/- SEM) and 458 non-PAD controls (aged 67 +/- 1 ...

BACKGROUND AND PURPOSE Although peripheral artery disease (PAD) has a particularly poor prognosis compared with vascular disease in other territories, little attention is paid to its epidemiology, treatment, and prevention. Despite the high prevalence of PAD in patients with stroke, and of stroke in patients with PAD, PAD is omitted from all guidelines for treatment, prevention, and rehabilitat...

Aims. We here investigated the association of different types of periampullary diverticula (PAD) with pancreaticobiliary disease and with technical success of endoscopic retrograde cholangiopancreatography (ERCP). Methods. A total of 850 consecutive patients who underwent their first ERCP were entered into a database. Of these patients, 161 patients (18.9%) had PAD and the age- and sex-matched ...

Coronary artery disease (CAD) and peripheral arterial disease (PAD) are different manifestations of atherosclerosis but frequently coexist. Previous studies have identified subjects with PAD as a high-risk subgroup with increased adverse events after elective percutaneous coronary intervention (PCI). PAD has also been associated with increased rates of adverse events after primary PCI for acute...

BACKGROUND The effect of peripheral arterial disease (PAD) on outcomes in patients with chronic heart failure (HF) has not been examined in propensity-matched studies. METHODS AND RESULTS Of the 2689 patients with advanced chronic systolic HF in the Beta-Blocker Evaluation of Survival Trial, 441 had a history of PAD. Propensity scores for a history of PAD, calculated for each patient using a ...