Abstract: Objective To explore the clinical effect of customized multifunctional electronic sphygmomanometer on forearm hematoma during percutaneous coronary intervention (PCI) via radial artery in the elderly patients. Methods A total of 110 elderly patients with forearm hematoma during PCI in our hospital from August 2019 to June 2022 were selected and divided into trial group and control group by random number table method, with 55 cases in each group. The forearm hematoma was compressed by local pressurization cuff of the multifunctional electronic sphygmomanometer in the trial group, while the forearm hematoma was compressed by mercury sphygmomanometer cuff in the control group. The comfortable degree of the patients, the operating frequency, operating time and radiation exposure dose of nurses during cuff compression, the successful rate of one-time hemostasis, the circumference of forearm and the degree of swelling were compared between the two groups. Results There was no statistically significant difference in comfortable degree between the two groups during the cuff compression (P>0.05). The frequency and the time of nurse's operation, and radiation exposure dose of the nurses were significantly different between the two groups (P<0.05). There were significant differences in the successful rate of one-time hemostasis, the circumference of forearm and the degree of swelling after compression between the two groups(P<0.05). Conclusions The local pressurization cuff by multifunctional electronic sphygmomanometer can reduce the operating frequency, operating time and radiation exposure dose of the nurses, and improve the successful rate of one-time hemostasis, without changing the comfortable degree of the patients receiving transradial PCI.

Key words: percutaneous coronary intervention, forearm hematoma, sphygmomanometer, cuff compression, constant pressure