Objective To evaluate improved effect for deep venous valve function after superficial vein surgery of lower extremity in the intermediate stage. Methods Totally 43 patients (55 limbs) with varicose veins of lower extremity were enrolled to accept surgical management of vein systems in our department from March 2006 to October 2006. All patients were respectively followed up after 6 months and 4 years about the changes of deep venous valve function with color Doppler ultrasonography. Results Thirty-nine patients’ deep venous valve function kept well up to now, and there was no significant difference between the two results. Four patients without proximal saphenous vein ligation recurred, and there was reflux in deep venous. Conclusion Endovenous laser treatment and ablation of varicose veins of lower extremity with deep venous insufficiency could improve deep venous valve function effectively. Proximal great saphenous vein ligation is important for successful operation.
Objective To explore the clinical experience on treatment of thromboangitis obliterans (TAO) by embolectomy. Methods Fourteen of 121 patients with TAO treated in our hospital from March 2000 to March 2010 were included in this study. Total 14 limbs consisted of 2 upper extremities and 12 lower extremities. Among these cases, 8 cases underwent embolectomy and 6 cases received embolectomy combined the stem cell transplantation. Results Of 14 cases of TAO patients, 11 cases were successfully treated by surgery and 3 cases failed. After successful operation, patient’s pain disappeared and anklebrachial index improved obviously. Seven patients treated successfully by surgery were followed up from 5 months to 8.5 years (mean 4 years), in whom the intermittent claudication and rest pain disappeared in 4 cases, and disease deteriorated in 2 cases who always smoked, and one case had intermittent claudication who stopped smoking. For 3 cases patients failed to operation, one lost followup, one had to receive a below knee amputation due to keep smoking after operation, and one case who stopped smoking underwent alleviative symptoms for 3 years. Conclusion Embolectomy is a safe and effective technique for treating TAO.
In the internet of medical things, data primarily exhibits time-series and streaming characteristics, featuring typical attributes such as large-scale volume, high transmission rates, and significant heterogeneity. Given these data properties and the application requirements of medical scenarios, the development of specialized data platforms tailored to these needs holds considerable research significance and practical value. This study innovatively proposes the internet of medical things data platform solution based on a cloud-edge-end architecture, and elaborates on its architecture, functions, and implementation effects. The edge side is responsible for streaming data access, storage, and computation; the cloud side encompasses three layers of services: resources, data, and applications, constructing a data lake to provide data analysis services. This study has been implemented in PLA General Hospital for verification. From 2021 to 2024, 263 medical devices have been connected accumulatively, with a total data volume of 24.07 TB and stable operation within 4 years. In the performance stress test, the platform achieved the data access throughput of 23.91 MB/s and the data storage efficiency of 30.98 MB/s. These results demonstrate the feasibility of the architecture platform. This study has engineered and successfully applied the cloud-edge-end architecture in complex internet of medical things scenarios, addressing challenges such as heterogeneous protocol compatibility of medical devices, real-time response to clinical operations, and large-scale storage and application of the internet of things data. The established data platform provides a solid data foundation for smart medical applications and holds significant value for the research of medical artificial intelligence and the construction of future smart hospitals.