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Vein Compression (vein + compression)

Distribution by Scientific Domains
Medical Sciences100%

Selected Abstracts

The relationship between varicoceles and obesity in a young adult population

INTERNATIONAL JOURNAL OF ANDROLOGY, Issue 4 2009
Chih-Wei Tsao
Summary To determine whether a relationship between obesity and varicocele occurrence exists, the prevalence and severity of varicoceles related to obesity were investigated in a general population of young males. A total of 1050 young males attending the Navy Recruit Training Center were evaluated from their physical screening examinations. All subjects underwent history taking and physical examinations to evaluate for the presence and severity of varicocele. The anthropometric indexes including body mass index (BMI), waist circumference (WC) and waist-to-hip ratio (WHR) were recorded. All subjects were categorized by quartiles according to each anthropometric index. Means were compared with the Student's t -test. Severity was compared by analysis of variance testing and frequency was analysed using the chi-square method. Statistical significance was considered at p <0.05. A total of 490 (46.67%) subjects had varicoceles. The means of BMI, WC and WHR of those without varicoceles was 23.99 ± 3.82 kg/m2, 83.20 ± 9.97 cm and 0.85 ± 0.05, respectively. These judged values were greater than those with varicoceles (22.02 ± 3.18 kg/m2, 79.19 ± 9.01 cm and 0.83 ± 0.05) (p < 0.001). In the univariate regression analysis, BMI, WC and WHR all had a significantly negative correlation with severity of varicocele (all p < 0.001). Analysis comparing varicocele frequency based on each grade per anthropometric index group was performed. The logistic regression revealed that the prevalence of grade II and III varicoceles showed a statistically inverse association with all three anthropometric indexes. The prevalence and severity of varicoceles inversely correlated with obesity. The present data support the explanation that obesity may result in a decreased nutcracker effect, which accounts for prevention of the renal vein compression by the adipose tissue. [source]

Cerebral Infarction in Conjunction With Patent Foramen Ovale and May-Thurner Syndrome

JOURNAL OF NEUROIMAGING, Issue 4 2001
David M. Greer MD
ABSTRACT Stroke patients with paradoxical embolus mandate a search for deep venous thrombosis (DVT) in the lower extremities. Iliac vein compression, or May-Thurner syndrome, places certain patients at risk for development of DVT. The authors present 3 stroke patients with patent foramen ovale and paradoxical cerebral embolism, with demonstrated iliac vein compression as the presumed source of their embolus. May-Thurner syndrome should be considered a potential source of clot, as definitive therapy of this disorder can be curative. [source]

Could Prolonged Air Travel Be Causally Associated with Subclavian Vein Thromboembolism?

JOURNAL OF TRAVEL MEDICINE, Issue 1 2002
Theodore Teruya
Background: Air travel associated with venous thromboembolism has recently achieved public awareness due to intense media coverage. The interest has focused on deep vein thrombosis (DVT) of the lower limbs with pulmonary embolism. The World Health Organization (WHO) is planning several international multicenter trials to study the problem and, if it exists, try to find a means for prevention. Methods: This is a case presentation of acute venous thromboembolism of the upper limbs associated with long-haul flights. Five patients were admitted to Straub Hospital in Honolulu after 5 to 10 hours' flight. Results: Patient 1 had a previous shoulder injury with DVT; patient 2 had chronic atrial fibrillation; patients 3 and 5 had clavicular fractures; and patient 4 had a subclavian vein compression. Conclusion: It is not possible to draw any conclusions about the association between air flights and subclavian vein thrombosis from this small retrospective case study. Our objective was to indicate the possibility of such a relationship. [source]

Stent implantation as a stabilization technique in supracardiac total anomalous pulmonary venous connection

CATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 4 2006
Adrienne Kilgore MD
Abstract A 6-week-old male presented in-extremis with obstructed supra-cardiac total anomalous pulmonary venous connection. Balloon dilation and stent implantation in the stenotic segment of the vertical vein relieved the obstruction until the patient was stable enough to undergo surgical repair. An unusual form of extrinsic vertical vein compression was found at surgery. © 2006 Wiley-Liss, Inc. [source]