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  • Title: Platelet volume parameters as a tool in the evaluation of acute ischemic priapism in patients with sickle cell anemia.
    Author: Adawi EA, Ghanem MA.
    Journal: Arch Ital Urol Androl; 2022 Jun 30; 94(2):217-221. PubMed ID: 35775350.
    Abstract:
    OBJECTIVE: This study aimed to evaluate the predictive value of platelet volume indices (PVIs), such as mean platelet volume (MPV), platelet distribution width (PDW), and plateletcrit (PCT), as prognostic parameters of detumescence in acute ischemic priapism (IP) patients with sickle cell anemia (SCA) in steady-state who received intracavernosal injections of phenylephrine with aspiration and saline irrigation. METHODS: Fifty-six SCA patients with acute IP and 54 healthy male control subjects were included in the research. Priapism was diagnosed by penile Doppler ultrasound and corporal blood gas tests before intervention. Measurements of PVIs (MPV, PDW, and PCT) and TLC were ordered for all participants. Additionally, the duration of priapism was recorded. The area under the curves was calculated by receiver operating characteristic (ROC) regression analysis. RESULTS: The detumescence rate was 71.4% after the intervention. Compared to the control group, priapic SCA patients showed significantly higher PLT (p = 0.011), MPV (p = 0.002), PDW (p = 0.032), PCT values (p = 0.022), and TLC (p = 0.027). Higher MPV, PDW, and PCT values were observed in unsuccessful detumescence patients compared to the resolution group (p < 0.05). Statistically significant cutoff values for persistent priapism were measured by ROC as PLT: ⩾ 254x103/μL; MPV: ⩾ 13.2 fL; PDW: ⩾ 15.6 fL; PCT: ⩾ 24%; and TLC ≥ 8.5x103/L. Priapism duration of ≤ 17.9 hours was significantly related to detumescence rate (p = 0.000). Multivariable logistic regression analysis showed that priapism duration and higher MPV are prognostic parameters for detumescence in SCA. CONCLUSIONS: The higher MPV and duration of priapism can be used as parameters for evaluating detumescence outcomes in steady-state SCA with acute IP.
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