Respiratory changes in biometry of suprarenal inferior vena cava in patients with varicose veins of lower extremities.

Phlebology
Yury Rusinovich, Volha Rusinovich

Abstract

This study examines respiratory biometry of inferior vena cava in patients with varicose veins of lower extremities. We performed retrospective analysis of clinical and ultrasound data of 67 patients with primary varicose veins. The largest expiratory (mean 16.2 mm, p-value 0.09) and inspiratory (mean 8.2 mm, p-value 0.02) inferior vena cava diameters were in C3 Clinical Etiological Anatomical Pathophysiological clinical class; the smallest expiratory diameters (mean 13.1 mm, p-value 0.5) were in C6 class; the smallest inspiratory diameters (mean 4.6 mm, intercept) were in C2 class. C2 class was associated with highest inferior vena cava collapsibility index (mean 68.2%, intercept); C6 class was associated with lowest collapsibility index (mean 48.3%, p-value 0.04).Recurrent varices in comparison with previously untreated were associated with smaller inspiratory diameters of inferior vena cava (mean 4.4 mm, p-value 0.005), smaller expiratory diameters (mean 13.4 mm, p-value 0.06) and higher collapsibility index (mean 68.5%, p-value 0.005). Patients with recurrent and bilateral varicose veins had identical respiratory biometry of inferior vena cava.Older age was associated with smaller inferior vena cava diameters (p-value <0.01...Continue Reading

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