Abstract
BackgroundDiabetes mellitus (DM) is a hypercoagulable state and is associated with highly increased risk of vascular complications. In the theory of traditional Chinese medicine (TCM), these vascular complications are classified as blood stasis. Diagnosis of the tongue plays an important role in TCM; a bluish tongue, petechiae, and engorged sublingual collateral vessels are manifestations of blood stasis. This study aimed to characterize the tongue manifestations of blood stasis and derive a relationship between blood stasis and vascular disorders in patients with type 2 DM.MethodWe conducted a cross-sectional study of 140 patients with type 2 DM, and compared demography, laboratory, physical examination, ankle brachial index(ABI), brachial-ankle pulse wave velocity (ba-PWV), and tongue manifestation datas. An automatic tongue diagnosis system was used to capture tongue images and characterize clinical tongue manifestations.ResultsA bluish or petechiae tongue was assoicated with a significant decrease in high-density lipoprotein level, and bluish tongue was associated with significant increase in blood triglyceride in patients with type 2 DM. On assessing arterial stiffness, patients with a petechiae tongue had a higher ba-PWV for both sides (L:1938.41 ± 469.54 cm/sec v.s.1723.99 ± 302.16, p = 0.02; R:1937.28 ± 405.55 v.s.1741.99 ± 325.82, p = 0.03).ConclusionBlood stasis, particularly a tongue with petechiae, may be associated with arterial stiffness in patients with type 2 DM. Furthermore, tongue diagnosis could detect blood stasis relevant to DM and could serve as a feasible predictor for DM.
Highlights
Diabetes mellitus (DM) is a hypercoagulable state and is associated with highly increased risk of vascular complications
A bluish or petechiae tongue was assoicated with a significant decrease in high-density lipoprotein level, and bluish tongue was associated with significant increase in blood triglyceride in patients with type 2 DM
Patients with a petechiae tongue had a higher brachial-ankle pulse wave velocity (ba-Pulse wave velocity (PWV)) for both sides (L:1938.41 ± 469. 54 cm/sec v.s.1723.99 ± 302.16, p = 0.02; R:1937.28 ± 405.55 v.s.1741.99 ± 325.82, p = 0.03)
Summary
Diabetes mellitus (DM) is a hypercoagulable state and is associated with highly increased risk of vascular complications. In the theory of traditional Chinese medicine (TCM), these vascular complications are classified as blood stasis. DM increases the risk for disability and premature death, and imparts a substantial socioeconomic burden due to the micro- and macro-vascular complications [3]. DM is a hypercoagulable state and is associated with an increased risk of ischemic events; it is associated with accelerated atherothrombosis [5, 6]. Arterial stiffness is closely related to the progression of DM complications [7].
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