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  • 1
    Online Resource
    Online Resource
    Doppler Ultrasound Compared With Strain Gauge for Measurement of Systolic Ankle Blood Pressure
    SAGE Publications ; 2008
    In:  Angiology Vol. 59, No. 3 ( 2008-06), p. 296-300
    Details
    In: Angiology, SAGE Publications, Vol. 59, No. 3 ( 2008-06), p. 296-300
    Abstract: This study assesses measurement variation in the measurement of ankle systolic blood pressure (ABP) when measured with Doppler ultrasound and with the strain gauge method. Ninety-seven patients were included. ABP was measured with Doppler ultrasound and with the strain gauge method. The methods were compared graphically by scatterplots and analyzed by paired t test, analysis of variance, and Pitman's paired variance ratio test. ABP was measured by strain gauge in all extremities, whereas no Doppler signal was obtainable in 7 limbs (4%). There was no systematic difference in measurements between the means of the two measurements. However, a substantial difference of more than 25 mm Hg was found in 15% of limbs and more than 20 mm Hg in 20%. In the majority of patients, measurements of ABP by Doppler ultrasound and the strain gauge method give similar results, but for a minority the discrepancy is substantial.
    Type of Medium: Online Resource
    ISSN: 0003-3197 , 1940-1574
    URL: Article
    DOI: 10.1177/0003319707308198
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2008
    detail.hit.zdb_id: 2065911-8
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  • 2
    Online Resource
    Online Resource
    Ultra-low-dose non-contrast CT and CT angiography can be used interchangeably for assessing maximal abdominal aortic diameter
    SAGE Publications ; 2022
    In:  Acta Radiologica Open Vol. 11, No. 10 ( 2022-10), p. 205846012211324-
    Details
    In: Acta Radiologica Open, SAGE Publications, Vol. 11, No. 10 ( 2022-10), p. 205846012211324-
    Abstract: Routine CT scans may increasingly be used to document normal aortic size and to detect incidental abdominal aortic aneurysms. Purpose To determine whether ultra-low-dose non-contrast CT (ULDNC-CT) can be used instead of the gold standard CT angiography (CTA) for assessment of maximal abdominal aortic diameter. Materials and Methods This retrospective study included 50 patients who underwent CTA and a normal-dose non–contrast CT for suspected renal artery stenosis. ULDNC-CT datasets were generated from the normal-dose non–contrast CT datasets using a simulation technique. Using the centerline technique, radiology consultants ( n = 4) and residents ( n = 3) determined maximal abdominal aortic diameter. The limits of agreement with the mean (LOAM) was used to access observer agreement. LOAM represents how much a measurement by a single observer may plausibly deviate from the mean of all observers on the specific subject. Results Observers completed 1400 measurements encompassing repeated CTA and ULDNC-CT measurements. The mean diameter was 24.0 and 25.0 mm for CTA and ULDNC-CT, respectively, yielding a significant but minor mean difference of 1.0 mm. The 95% LOAM reproducibility was similar for CTA and ULDNC-CT (2.3 vs 2.3 mm). In addition, the 95% LOAM and mean diameters were similar for CTA and ULDNC-CT when observers were grouped as consultants and residents. Conclusions Ultra-low-dose non–contrast CT exhibited similar accuracy and reproducibility of measurements compared with CTA for assessing maximal abdominal aortic diameter supporting that ULDNC-CT can be used interchangeably with CTA in the lower range of aortic sizes.
    Type of Medium: Online Resource
    ISSN: 2058-4601 , 2058-4601
    URL: Article
    DOI: 10.1177/20584601221132461
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2818429-4
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  • 3
    Online Resource
    Online Resource
    Hospital Based Screening of 65–73 Year Old Men for Abdominal Aortic Aneurysms in the County of Viborg, Denmark
    SAGE Publications ; 1996
    In:  Journal of Medical Screening Vol. 3, No. 1 ( 1996-03), p. 43-46
    Details
    In: Journal of Medical Screening, SAGE Publications, Vol. 3, No. 1 ( 1996-03), p. 43-46
    Abstract: To analyse the benefits of screening older men for abdominal aortic aneurysms. Methods— A hospital based screening trial concerning 13 500 65–73 year old men using B—mode ultrasonographic scanning. To improve the response rate the invited men could change their appointment, and non—responders were reinvited. Results— Results from the first year of the trial are presented. Among 4404 invited, 3344 (76%) were scanned. The primary response rate was 64.8%, but a further 11.2% were scanned after revised appointments or reinvitation. The whole infrarenal aorta could be visualised in 97.6%, and the distal part in 99.7% of the scans. The time taken for each scan was 9.7 minutes and the costs per scan were ·9.50. One hundred and fifty three subjects (4.6%) had aortic diameters of 25.29 mm, and 141 (4.2%) had an abdominal aortic aneurysm, 19 (0.6%) above 49 mm in diameter. Conclusion— In Denmark the short term costs and benefits of screening older men for abdominal aortic aneurysms seem realistic. Long term costs and benefits need to be investigated.
    Type of Medium: Online Resource
    ISSN: 0969-1413 , 1475-5793
    URL: Article
    DOI: 10.1177/096914139600300111
    Language: English
    Publisher: SAGE Publications
    Publication Date: 1996
    detail.hit.zdb_id: 2058901-3
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  • 4
    Online Resource
    Online Resource
    C-Reactive Protein Predicts Future Arterial and Cardiovascular Events in Patients With Symptomatic Peripheral Arterial Disease
    SAGE Publications ; 2008
    In:  Vascular and Endovascular Surgery Vol. 42, No. 4 ( 2008-08), p. 341-347
    Details
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 42, No. 4 ( 2008-08), p. 341-347
    Abstract: High-sensitivity C-reactive protein is associated with increased risk of cardiovascular events. Consequently, the predictive value of this protein in patients with symptomatic peripheral arterial disease was examined. In all, 452 patients with symptomatic peripheral arterial disease had high-sensitivity C-reactive protein measured at baseline (mean follow-up = 2.1 ± 1.4 years). Events were defined as primary (death, amputation, or peripheral revascularization) or secondary (lower limb thrombosis, myocardial infarction, or stroke).The level of high-sensitivity C-reactive protein was significantly higher among those dying ( P = .04), those who needed amputation ( P = .01), and those developing an overall secondary endpoint ( P = .02). By receiver-operating characteristic curve analysis, the optimal cutoff point was constantly approximately 10 to 20 mg/L with a sensitivity and specificity of 56% to 63% and 54% to 56%, respectively. Baseline levels of high-sensitivity C-reactive protein are associated with future arterial events in symptomatic peripheral arterial disease patients but cannot stand alone as a predictive tool.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    URL: Article
    DOI: 10.1177/1538574408316138
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2008
    detail.hit.zdb_id: 2095223-5
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  • 5
    Online Resource
    Online Resource
    Basic Science Review: Vascular Distensibility as a Predictive Tool in the Management of Small Asymptomatic Abdominal Aortic Aneurysms
    SAGE Publications ; 2009
    In:  Vascular and Endovascular Surgery Vol. 43, No. 4 ( 2009-08), p. 333-338
    Details
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 43, No. 4 ( 2009-08), p. 333-338
    Abstract: Background: This study investigates whether baseline aortic wall distensibility serves as a supplemental bio-marker for AAA progression and need for later repair. Methods: In 1998, 61 males with a small asymptomatic AAAs had a baseline measurement of elasticity and stiffness, using an echo-tracking ultrasound system (Diamove). The cohort was followed till 2005 concerning Dmax, expansion rate, operations for AAA, hospitalisation do to cardiovascular disease and death. Results: During follow-up, 49% died, and 45.9% were hospitalised do to cardiovascular disease, compared to Dmax, Ep and b no significant associations were found. Elasticity correlated moderately to annual expansion rate and Dmax. Good correlation was found between annual expansion rate and Dmax. ROC-curve analysis showed that elasticity, stiffness and Dmax all tended to predict future need for AAA-repair. Conclusion: Baseline aortic wall distensibility may provide an additional parameter for AAA to optimize the indication and time for elective repair.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    URL: Article
    DOI: 10.1177/1538574409336019
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2095223-5
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  • 6
    Online Resource
    Online Resource
    Low-Dose Aspirin May Prevent Growth and Later Surgical Repair of Medium-Sized Abdominal Aortic Aneurysms
    SAGE Publications ; 2008
    In:  Vascular and Endovascular Surgery Vol. 42, No. 4 ( 2008-08), p. 329-334
    Details
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 42, No. 4 ( 2008-08), p. 329-334
    Abstract: Experimental data suggest that aspirin-induced platelet inhibition may retard growth of abdominal aortic aneurysms. In this article, whether low-dose aspirin use is associated with reduced aneurysm progression and subsequent need for surgery is examined. In this observational cohort study within a screening trial, 148 patients with small aneurysms (maximum diameter 30-48 mm) annually are followed. Patients were referred for surgery when the aneurysmal diameter exceeded 50 mm. Median follow-up time was 6.6 years. Among patients whose abdominal aortic aneurysms were initially 40 to 49 mm in size, the abdominal aortic aneurysm expansion rate for low-dose aspirin users compared with nonusers was 2.92 mm/y versus 5.18 mm/y (difference 2.27 mm/y, 95% CI, 0.42-4.11). No difference in expansion rates and risk ratios for operative repair was found for patients with abdominal aortic aneurysms 〈 40 mm. For medium-sized abdominal aortic aneurysms, low-dose aspirin may prevent abdominal aortic aneurysm growth and need for subsequent repair, but residual confounding cannot be excluded.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    URL: Article
    DOI: 10.1177/1538574408315205
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2008
    detail.hit.zdb_id: 2095223-5
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  • 7
    Online Resource
    Online Resource
    Use of Angiotensin-Converting Enzyme Inhibitors and Cardiovascular Outcomes Following Primary Vascular Surgery : A Nationwide Propensity Score Matched Follow-up Study
    SAGE Publications ; 2012
    In:  Vascular and Endovascular Surgery Vol. 46, No. 7 ( 2012-10), p. 515-523
    Details
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 46, No. 7 ( 2012-10), p. 515-523
    Abstract: Objective: To examine the association between angiotensin-converting enzyme (ACE) inhibitor use and clinical outcome after primary vascular reconstruction in a population-based follow-up study. Methods: All Danish patients undergoing primary vascular surgical reconstruction between 1996 and 2007 were included. For each ACE user up to 5 nonuser was identified using propensity score matching followed by Cox regression. All drugs were included as time-dependent variables. Results: Totally 17 495 matched patients with a median follow-up period of 582 days were included. All-cause mortality was 20.4% for ACE users and 24.9% for nonusers (adjusted hazard ratio [adj HR] 0.88, 95% confidence interval [CI] 0.81-0.96). The cumulative risk of myocardial infarction was 6.2% for ACE users and 4.7% for nonusers (adj HR 1.20, 95%CI 1.03-1.39). Cumulative risk of new vascular surgery was 24.0% for ACE users and 23.1% for nonusers (adj HR 1.21, 95% CI 1.13-1.30). No differences were seen concerning stroke and major amputation. Conclusion: The ACE use was associated with lower all-cause mortality but also an increased long-term risk of recurrent vascular reconstruction.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    URL: Article
    DOI: 10.1177/1538574412455229
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2012
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  • 8
    Online Resource
    Online Resource
    Intermittent Roxithromycin for Preventing Progression of Small Abdominal Aortic Aneurysms: Long-Term Results of a Small Clinical Trial
    SAGE Publications ; 2009
    In:  Vascular and Endovascular Surgery Vol. 43, No. 5 ( 2009-10), p. 452-456
    Details
    In: Vascular and Endovascular Surgery, SAGE Publications, Vol. 43, No. 5 ( 2009-10), p. 452-456
    Abstract: Background: Antibodies against Chlamydia pneumoniae are associated with an increased rate of expansion of small abdominal aortic aneurysms (AAAs). Short-term follow-up trials have shown a transient reduction AAA growth rate, in macrolide treated compared with placebo. Therefore we analysed the influence of intermittent, long-term roxithromycin treatment on AAA expansion and referral for surgery. Methods: Eighty-four patients with small AAAs were randomized to either an annual 4 weeks’ treatment with roxithromycin or placebo, and followed prospectively. Results: Intermittent, long-term Roxithromycin-treatment reduced mean annual growth rate by 36% compared with placebo after adjustment for potential confounders. Long-term roxithromycin-treated patients had a 29% lower risk of being referred for surgical evaluation, increasing to 57% after adjusting for potential confounders. Conclusion: Annual 4 week treatment with 300 mg roxithromycin daily may reduce the progression of small AAAs, and later need for surgical repair. However, more robust studies are needed for confirmation.
    Type of Medium: Online Resource
    ISSN: 1538-5744 , 1938-9116
    URL: Article
    DOI: 10.1177/1538574409335037
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2095223-5
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  • 9
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    Online Resource
    The transposed femoral vein arteriovenous fistula for hemodialysis
    SAGE Publications ; 2019
    In:  The Journal of Vascular Access Vol. 20, No. 2 ( 2019-03), p. 169-174
    Details
    In: The Journal of Vascular Access, SAGE Publications, Vol. 20, No. 2 ( 2019-03), p. 169-174
    Abstract: The prevalence and incidence of patients in need of hemodialysis worldwide are increasing. The population in need of hemodialysis is becoming older and vascular comorbidities are more frequent than decades ago. Consequently, the prevalence of patients with exhausted possibilities of upper limb vascular accesses increases. In contrast to other lower limb vascular accesses, a fistula by transposing the femoral vein to the superficial femoral artery promises better patency rates in preliminary series. Methods: The first seven cases performed between October 2015 and March 2017 at the only center in Denmark performing this procedure were reviewed regarding demographics, comorbidities, complications, and patency. Results: The study population consisted of five males and two females, with a mean age of 61.6 ± 9.9 years, mean body mass index 24.9 ± 2.6, with various causes of uremia. Five patients (71.4%) experienced at least one complication, such as wound dehiscence, lymphocele, infection, hematoma, or steal. First cannulation of the transposing the femoral vein to the superficial femoral artery was conducted after 12.2 ± 4.3 weeks. Postoperatively, the patients have been followed 16.4 ± 9.6 months in the dialysis center. All but one is still using their transposing the femoral vein to the superficial femoral artery for dialysis, but three of these needed revision to maintain patency giving a primary and primary-assisted patency of 42.9 (95% confidence interval: 15.8–75.0) and 85.7 (95% confidence interval: 48.7–97.4), respectively. Conclusion: Although postoperative complications and need for revision to maintain patency persists, our experience suggests that this is a feasible method when it is no longer possible to create an upper extremity vascular access. A learning curve for the entire vascular access team must be expected.
    Type of Medium: Online Resource
    ISSN: 1129-7298 , 1724-6032
    URL: Article
    DOI: 10.1177/1129729818789315
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2079292-X
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