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KMID : 0980120220200020095
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Annals of Phlebology
2022 Volume.20 No. 2 p.95 ~ p.99
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Change of Venous Return after Diaphragmatic Deep Breathing
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Lee Kwang-Jin
Kim Hyang-Kyoung
Cho Sung-Sin
Joh Jin-Hyun
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Abstract
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Objective: We evaluated the effects of diaphragmatic deep breathing (DB) on venous return in symptomatic patients.
Methods: A prospective study was conducted on volunteers with venous symptoms. After ultrasound confirmation of deep vein patency, the blood flow velocity (peak systolic velocity, PSV) and volume in the common femoral vein (CFV) with duplex ultrasound and wash-out time of 99Technetium-macroaggregated albumin (99Tc-MAA) with radioisotope (RI) venography were measured in supine and standing positions. After practicing DB for a month, the blood flow volume, velocity, and wash-out time of 99Tc-MAA were rechecked.
Results: In the supine position, the PSV of both CFVs and the flow volume of the right CFV were significantly increased after DB (p=0.043, all), while the flow volume of the left CFV did not show a significant change after DB (p=0.138). In the standing position, the PSV of the left CFV significantly increased (p=0.029). The time-to-peak and wash-out times of 99Tc-MAA for both CFVs were significantly shorter with DB than with normal breathing (all, p＜0.05).
Conclusion: DB may have a beneficial effect on venous return in patients with symptomatic chronic venous disease. Further research is required to evaluate whether this could be an alternative therapeutic approach.
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KEYWORD
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Chronic venous disease, Diaphragmatic deep breathing, Venous return, Duplex ultrasound, 99Tc-MAA with radioisotope venography
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