This study aimed to examine whether obesity, including abdominal obesity, is an influential factor for radial arterial wave reflection, as expressed by the augmentation index (AI), in middle-aged Japanese men. Radial arterial pressure waveform was measured using automated applanation tonometry in 828 men (mean age: 47+/-5 years) during an annual health examination at a company. Radial AI was calculated from the waveforms. AI appeared to be similar between subjects with and without obesity (body mass index (BMI) >or=25 and <25 kg m(-2), respectively). However, after adjusting for age, height, heart rate, mean blood pressure, low- and high-density lipoprotein cholesterol, fasting plasma glucose, white blood cell count and other potential confounders, AI was significantly lower in subjects with obesity (71.6%, 95% confidence interval (CI); 70.2-73.0%) than in those without (75.2%, 95% CI; 74.4-76.0%, P<0.001). In a multiple linear regression analysis, BMI was negatively associated with AI (beta=-0.20, P<0.001); other factors associated with AI were heart rate (beta=-0.56), mean blood pressure (beta=0.44), height (beta=-0.24), age (beta=0.15), current smoking (beta=0.09), white blood cell count (beta=0.06) and low-density lipoprotein cholesterol (beta=0.06). Similar associations were found when waist circumference (WC, an index of abdominal obesity) was substituted for BMI in the analysis (beta=-0.12, P<0.001). BMI closely correlated with WC (r=0.87), thus suggesting that approximately 76% (a square of 0.87) of BMI can be explained by WC. In conclusion, although it does not have a major impact, obesity, including abdominal obesity, may be an influential factor for reduced radial AI, independently of well-known confounders, in middle-aged Japanese men.
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http://dx.doi.org/10.1038/hr.2009.33 | DOI Listing |
J Am Acad Orthop Surg
September 2024
From the Department of Orthopaedic Surgery, Keck Medical Center of the University of Southern California, Los Angeles, CA (Ihn, Chung, Lovro, Patterson, Christ, and Heckmann), the Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN (Chen), the Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA (Tucker), and the Department of Radiology, Keck Medical Center of the University of Southern California, Los Angeles, CA (White, and Hwang).
Introduction: Vascular injury during acetabular screw fixation is a life-threatening complication of total hip arthroplasty. This study uses three-dimensional computed tomography to (1) measure absolute distance from the external iliac artery (EIA) to the acetabulum, (2) determine available bone stock along the EIA path, and (3) create a novel acetabular vascular risk map.
Methods: A retrospective radiographic study was conducted using three-dimensional CT.
BMJ Case Rep
January 2025
Department of Orthopaedic Surgery, Wayne State University School of Medicine, Detroit, Michigan, USA.
Arterial cannulation, commonly performed in the radial artery, is a widely used method for continuous blood pressure monitoring. Occasionally, the axillary artery is used as an alternate site of cannulation. However, complications like occlusion can lead to adverse events and severe outcomes.
View Article and Find Full Text PDFJ Soc Cardiovasc Angiogr Interv
December 2024
Division of Cardiovascular Medicine, Sulpizio Cardiovascular Center, University of California San Diego, San Diego, California.
Background: A minimum threshold activated clotting time (ACT) to guide heparin dosing during percutaneous coronary intervention (PCI) is associated with lower ischemic complications. However, data are variable regarding the risk of high ACT levels. The aim of this study was to assess the impact of peak procedural ACT on complications and mortality for transfemoral and transradial access PCI.
View Article and Find Full Text PDFBMC Nephrol
January 2025
Department of Nephrology, Southern University of Science and Technology Hospital, Shenzhen, China.
Background: Calcification of the radial artery is one of the main causes of anastomotic stenosis in autogenous arteriovenous fistulas in uremic patients. However, the pathogenesis of calcification is still unknown. This study attempted to screen and validate the risk factors for vascular calcification in patients with uremia.
View Article and Find Full Text PDFJ Clin Med
December 2024
Second Department of Anesthesiology, Attikon University Hospital, National and Kapodistrian University of Athens, 12461 Athens, Greece.
: The aim of this study is to assess whether changes in Pulse Pressure Variation (PPV) and Stroke Volume Variation (SVV) following a VtC can predict the response to fluid administration in patients undergoing surgery under general anesthesia with protective mechanical ventilation. : A total of 40 patients undergoing general surgery or vascular surgery without clamping the aorta were enrolled. Protective mechanical ventilation was applied, and the radial artery was catheterized in all patients.
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