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  • Title: Factors affecting hemostasis in the control of iatrogenic renal hemorrhage.
    Author: Bao H, Shao L, Man X, Lin W, Zhang X, Han X.
    Journal: World J Urol; 2022 Jun; 40(6):1581-1586. PubMed ID: 35220475.
    Abstract:
    PURPOSE: To investigate factors affecting hemostasis in iatrogenic renal hemorrhage. METHODS: Seventy-three patients with iatrogenic renal hemorrhage experiencing selective renal artery angiography between Jan 2015 and Dec 2020 were enrolled in this study. The clinical features, treatment modalities and outcomes were reviewed. Factors affecting hemostasis were analyzed by univariate and multivariate models using linear regression techniques. The optimum values of the independent factors to predict postangiographic hemostasis were conducted by receiver operating characteristic (ROC) curve analysis. RESULTS: Of the 73 iatrogenic renal hemorrhage patients, 47 (64.4%) patients had positive angiographic findings and received therapeutic embolization. Of the patients with negative angiographic findings, 20 (76.9%) and 6 (23.1%) received conservative therapy and prophylactic embolization, respectively. The red blood cell (RBC) count (OR = 0.61, P = 0.04), the hematuria time before angiography (OR = - 0.19, P < 0.01) and treatment modality were independent factors affecting hemostasis time. The ROC curve analysis showed that the RBC count of 3.5 × 109/L and the hematuria time before angiography of 7 days were the optimum indicators. Therapeutic embolization and prophylactic embolization were protective factors affecting hemostasis time compared with conservative treatment (OR = - 1.59, P = 0.02; OR = - 3.31, P < 0.01). CONCLUSIONS: The hematuria time before selective renal artery angiography, the RBC count, and embolization treatment are associated with rapid hemostasis. Embolization is an effective strategy for iatrogenic renal hemorrhage, and also enables rapid hemostasis in patients with negative angiographic findings.
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