Pulsatile high-velocity turbulent flow in lower extremity venous ultrasonography

Sakamoto, Shingo; Ikado, Hiromi; Kawarada, Osami; Harada, Koichiro; Ishihara, Masaharu; Yasuda, Satoshi; Ogawa, Hisao

doi:10.1136/heartjnl-2013-305309

Cited by 1 publication

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“…The main reason for the formation of LEDVT is the abnormal coagulation of venous blood in patients with cerebral infarction, which affects the reverse flow of venous blood, while the number of venous valves in lower limb muscles is small and the blood flow speed is slow, thus leading to a higher incidence of LEDVT in patients with cerebral infarction [ 15 , 16 ]. Some patients with LEDVT have no obvious symptoms at the early stage, so they will not attract attention, and the onset of LEDVT is extremely rapid, and the progress is rapid [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

Influence of Lower Extremity Deep Venous Thrombosis in Cerebral Infarction on Coagulation Index and Thromboelastogram and Its Risk Factors

Jin

Jiang²,

Zhang

2022

Journal of Healthcare Engineering

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Cerebral infarction is a serious brain injury disease, which is mainly caused by the blockage of blood circulation in patients’ brains; thus, the patient’s brain appears ischemia and hypoxia state, and large-scale nerve cell death occurs immediately. The aim of this study was to explore the influence of lower extremity deep venous thrombosis (LEDVT) on coagulation indexes and thromboelastogram (TEG) after cerebral infarction. Altogether, 67 patients with cerebral infarction complicated with LEDVT in our hospital from April 2017 to August 2019 were collected as the observation group (OG) and 58 patients with cerebral infarction without lower extremity deep venous thrombosis as the control group (CG). The R, K, angle, and MA values in PT, APTT, TT, FIB, and TEG indexes were compared between the two groups. The ROC curve was applied to analyze the diagnostic value of R value, K value, angle value, and MA value in the occurrence of LEDVT in patients with cerebral infarction. Logistic regression analysis was applied to analyze the independent risk factors of lower extremity deep venous thrombosis in cerebral infarction. PT, APTT, and TT in the OG were evidently lower than those in the CG, while FIB in the OG was evidently higher than that in the CG, R value and K value of the OG were evidently lower than those of the CG, and angle and MA values were higher than those in the CG. The AUC of R value, K value, angle value, and MA value of the ROC curve of LEDVT in patients with cerebral infarction was 0.735, 0.713, 0.790, and 0.819. Multivariate analysis showed that high FIB, angle, and MA were risk factors, while R and K values were protective factors. PT, APTT, and TT are lower and FIB is higher in patients with cerebral infarction with LEDVT. TEG has a certain diagnostic value. FIB value, angle value, and MA value are independent risk factors of LEDVT in patients with cerebral infarction, while R value and K value are protective factors.

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Section: Discussionmentioning

confidence: 99%