Radiofrequency ablation for hepatic hemangioma is safe and effective, and can obtain the same curative effect as traditional surgical resection. For hepatic hemangiomas with large volume, abundant arterial blood supply and long ablation time, systemic inflammatory response syndrome (SIRS) often occurs after radiofrequency ablation, which can lead to injury or dysfunction of important organs. This paper systematically summarizes the mechanism, prevention and treatment of SIRS after radiofrequency ablation of hepatic hemangioma, so as to provide reference for improving the safety of radiofrequency ablation of hepatic hemangioma.
Objective To explore the cl inical effectiveness of debridement in treatment of Pes anserinus bursitis under arthroscopy by comparing the curative effect of three therapies: local block therapy, open operation and debridement under arthroscopy. Methods From January 2000 to January 2007, 90 cases of unilateral Pes anserinus bursitis were treated with debridement under arthroscopy (group A, n=30), local block therapy (group B, n=30) and open operation (group C, n=30),respectively. The group A included 18 males and 12 females, aged (40.0 ± 2.5) years old; the locations were left knee in 16 cases and right knee in 14 cases; 10 cases had injury history, 7 cases had tired history and 13 cases had no obvious inducement; the course of disease was (24.0 ± 3.2) weeks. The group B included 17 males and 13 females, aged (37.0 ± 2.5) years old; the locations were left knee in 15 cases and right knee in 15 cases; 10 cases had injury history, 8 cases had tired history and 12 cases had no obvious inducement; the course of disease was (26.3 ± 3.5) weeks. The group C included 16 males and 14 females, aged (39.8 ± 2.2) years old; the locations were left knee in 18 cases and right knee in 12 cases; 8 cases had injury history, 10 cases had tired history and 12 cases had no obvious inducement; the course of disease was (25.0 ± 3.9) weeks. There was no statistically significant difference in the general data among three groups (P gt; 0.05). Results All patients were followed up 15 months on average (12-24 months). In group C, the inflammatory reation occurred at wound in 9 cases (30%) at 3-10 days after operation and was cured after symptomatic management; other incision healed by first intention; and showing statistically significant differences when compared with other 2 groups (P lt; 0.05). In group C, joint swell ing occurred at 1 week after operation in 1 case, l imitation of joint motion in 2 cases at 10-12 weeks after operation and was recovered after symptomatic management. In group B, 21 cases (70%) had a recurrence at 6-12 months after operation, all patients of other 2 groups had no recurrence; showing statistically significant differences between group B and groups A, C (P lt; 0.05). At last follow-up, the pain remain rates were 3.3% (group A), 0 (group B) and 33.3% (group C), and the compl ication incidence rates were 3.3%, 26.7% and 70.0%, respectively; all showing statistically significant differences among three groups (P lt; 0.05). At last follow-up, there were statistically significant differences in the visual analogue scale (VAS) score, the HSS score, and range of motion (ROM) between preoperation and postoperation in group A (P lt; 0.05); there was no statistically significant difference in the VAS score, HSS score and ROM between preoperation and postoperation in group B (P gt; 0.05); the ROM of postoperation in group C was smaller than that of preoperation (P lt; 0.05). There were statistically significant differences in the VAS score and HSS score between group A and groups B, C (P lt; 0.05), and in ROM among three groups after operation (P lt; 0.05). Conclusion The treatment of Pes anserinus bursitis with debridement under arthroscopy has advantages of easy-to-do, less compl ication, low relapse rate and good functional rehabil itation.
ObjectiveTo investigate the clinical features of primary tracheal or pulmonary malignant glomus tumor (MGT).MethodsA patient with primary tracheal MGT was reported. Wanfang, CNKI, Embase, Ovid, Cochrance and PubMed databases were searched with key words "tracheal malignant glomus tumor" and " pulmonary malignant glomus tumor” both in English and in Chinese for literature of primary tracheal or pulmonary MGT. Their clinical manifestations, imaging findings, bronchoscopic findings, pathological findings, especially immunohistochemical characteristics, diagnosis and differential diagnosis, treatment, and prognosis of primary tracheal or pulmonary MGT were summarized.ResultsThis male patient who manifested as cough, chest tightness, shortness of breath and dyspnea was diagnosed as tracheal MGT and received a treatment of radiofrequency ablation and cryotherapy under bronchoscopy. He refused to receive the chemotherapy and died after two months with a lung metastases. A total of 17 cases of primary tracheal or pulmonary MGT were retrieved in 16 articles, of which 5 were primary in the trachea and 12 were primary in the lung. Their clinical manifestations, imaging findings, and bronchoscopic findings were non-specific. The diagnosis relied on pathology, especially immunohistochemical staining. The preferred treatment of tracheal MGT may be surgical resection, the prognosis was acceptable. Treatment of lung MGT included lobectomy or airway interventional treatment and its prognosis was poor. The treatment of primary tracheal or pulmonary MGT needed early treatment. Because the curative effect of airway interventional treatment and chemotherapy was dubious, surgical plan should be first considered.ConclusionsBoth of primary tracheal and primary pulmonary MGT are rare. They usually lack specific clinical manifestations, laboratory tests, and imaging, and are easy to be misdiagnosis or miss diagnosis. The diagnosis can be confirmed by the results of biopsy for pathological analysis, especially by the immunohistochemical staining analysis. The treatment of tracheal and pulmonary MGT need further study.
Aiming at the problems of individual differences in the asynchrony process of human lower limbs and random changes in stride during walking, this paper proposes a method for gait recognition and prediction using motion posture signals. The research adopts an optimized gated recurrent unit (GRU) network algorithm based on immune particle swarm optimization (IPSO) to establish a network model that takes human body posture change data as the input, and the posture change data and accuracy of the next stage as the output, to realize the prediction of human body posture changes. This paper first clearly outlines the process of IPSO's optimization of the GRU algorithm. It collects human body posture change data of multiple subjects performing flat-land walking, squatting, and sitting leg flexion and extension movements. Then, through comparative analysis of IPSO optimized recurrent neural network (RNN), long short-term memory (LSTM) network, GRU network classification and prediction, the effectiveness of the built model is verified. The test results show that the optimized algorithm can better predict the changes in human posture. Among them, the root mean square error (RMSE) of flat-land walking and squatting can reach the accuracy of 10−3, and the RMSE of sitting leg flexion and extension can reach the accuracy of 10−2. The R2 value of various actions can reach above 0.966. The above research results show that the optimized algorithm can be applied to realize human gait movement evaluation and gait trend prediction in rehabilitation treatment, as well as in the design of artificial limbs and lower limb rehabilitation equipment, which provide a reference for future research to improve patients' limb function, activity level, and life independence ability.