https://www.selleckchem.com/products/ms-275.html The receiver operating analysis was used to obtain cut-off, sensitivity and specificity values for the independent predictive factors. Results The age, ASA score, diabetes mellitus, IIEF score, duration of ED, peak arterial and peak end diastolic venous flow values in the 20th minute were significantly different in the two groups (p less then 0.001). Binary logistic regression analysis found age, duration of erectile dysfunction, IIEF score, peak arterial flow and venous flow rate in the 20th minute were predictive variables for the occurrence of priapism. Conclusions Young patients, patients with good IIEF score, patients with ED for a short time, and patients with normal peak arterial and venous flows are more prone to developing post-papaverine ischemic priapism.Study question Do cumulative live birth rates (CLBRs) after one complete ART cycle differ between the three commonly used controlled ovarian stimulation (COS) protocols (GnRH antagonist, depot GnRHa (GnRH agonist) and long GnRHa) in normal responders undergoing IVF/ICSI? Summary answer There were similar CLBRs between the GnRH antagonist, depot GnRHa and long GnRHa protocols. What is known already There is no consensus on which COS protocol is the most optimal in women with normal ovarian response. The CLBR provides the final success rate after one complete ART cycle, including the fresh and all subsequent frozen-thawed embryo transfer (ET) cycles. We suggest that the CLBR measure would allow for better comparisons between the different treatment protocols. Study design, size, duration A prospective controlled, randomized, open label trial was performed between May 2016 and May 2017. A total of 819 patients were allocated to the GnRH antagonist, depot GnRHa or long GnRHa protocol in a 111 ratio. The minimum f receptivity. Study funding/competing interest(s) This project was funded by Grant 81571439 from the National Natural Sciences Foundation of China and