ObjectiveTo compare the early efficacy between Quadrant channel and traditional method in treating lumbar disc herniation. MethodBetween July 2010 and December 2012, 60 patients with lumbar disc herniation were randomly divided into two groups with 30 in each. Quadrant channel and traditional method were used respectively to do the same one single segmental pedicle screw fixation with single pieces of cage bone grafting fusion and internal fixation. Then, we compared the two groups in incision length, operative time, blood loss, incision healing time and postoperative incidence of low back pain between the two groups of patients. ResultsThere were no significant differences between the two groups in terms of operation time, blood loss, and recent curative effect (P>0.05), while Quadrant channel was superior in small skin incision, reduced incidence of low back pain, and shorter postoperative incision healing time (P<0.05). ConclusionsTreatment of lumbar disc herniation using Quadrant channel is minimally invasive with less complications. Mid-and long-term efficacy remains to be further analyzed.
It is an important means to study the electrical activity of the brain's nerve cells by exploring physiological information of the EEGs from the frequency domain. The gravity frequency is one of the global parameters with using this method. We used the multitaper spectrum method (MTM) spectrum estimation method of good performance to calculate the EEG spectrum and its gravity frequency of subjects under vigilance and vigilance decrement state. The results showed that the gravity frequency of vigilance state was higher than that of vigilance decrement state, the gravity frequency became smaller along with the vigilance decrement, and the location of the gravity frequency shifted to the left in the spectrum. Finally, the monitoring curve of the gravity frequency was acquired by designing an algorithm, and it was used to online monitoring vigilance operators.
Objective To evaluate the indications, effectiveness and complications of vitreoretinal surgery using the 25G transconjunctival sutureless vitrectomy system (TSV25G) under the topical anesthesia. Methods The clinical and follow-up data of 22 eyes of 22 patients undergone vitreo-retinal surgery using TSV25G under the topical anesthesia were retrospectively analyzed. All of the patients were monocular sickened, including idiopathic macular hole in 10 eyes, idiopathic macular pucker in 6, vitreoretinal traction syndrome in 4, and vitreous hemorrhage associated with branch retinal vein occlusion in 2. Peeling of epiretinal membrane and/or internal limiting membrane, intra ocular laser coagulation, air-fluid exchange and tamponiding of C3F8 were performed according to the condition of diseases. The postoperative follow-up was 1-11 months, with the mean duration of 6.4 months. The effect of analgesia, cooperation with the patients, operative effect and complications in and after the surgery were observed. Results The operations finished successfully in all of the eyes under the topical anesthesia. The operation duration ranged from 20 to 25 minutes with average of 22 minutes. The patients cooperated with the doctor well without any discomfort. Two days after the surgery, edema of the wounded conjunctiva was found, and recovered 7 days later. A light pigment dot on the surface of the sclera could be seen at the first month. The complic ations included transient increasing of intraocular pressure in 2 eyes, feather-like opacity of lens in 5 eyes, vitreous hemorrhage in 1 eye, and air-bleb under conjunctiva in 2 eyes. No other complications related with the cut were fo und. The macular hole closed in 9 eyes with idiopathic macular hole, and the other 1 had the smaller but not closed hole. Idiopathic macular pucker, vitreoretinal traction syndrome, and vitreous hemorrhage associated with branch retinal vein occlusion were cured successfully. Conclusions Vitreoretinal surgery using the TSV25G under the topical anesthesia has many advantages such as simple procedure, short operation time, micro-invasion, less complications and rapid revovery, and mainly serves simple manipulation in some simple diseases such as idiopathic macular hole, vitreo-retinal traction syndrome, and simple hemorrhage. (Chin J Ocul Fundus Dis，2004，20：133-136)
目的:探討取出外耳道異物的方法。方法:2000～2007年對62例外耳道異物取出方法進行報告。結果:不同異物采取不同方法,異物種類多樣,因此取出的方法亦多樣。對于一些特殊異物采用特殊方法將取得很好的效果。結論:要提高外耳道異物取出的效率,就要采用不同方式。
目的:探討簡化生長激素藥物激發實驗的可行性。方法:對單獨應用可樂定藥物激發實驗的結果和聯合應用可樂定與精氨酸藥物激發實驗結果進行對照研究。GH峰值gt;10ng/mL,正常;GH峰值lt;5ng/ml,為GH完全缺乏;GH峰值在5 -10ng/ml之間,為GH部分缺乏。結果:簡化藥物激發實驗與經典藥物激發實驗結果評估無顯著性差異。結論:單獨使用可樂定進行生長激素激發實驗的結果與可樂定聯合精氨酸進行生長激素激發實驗結果評價無顯著性差別。
Mitral stenosis includes mitral stenosis due to rheumatic fever and non-rheumatic valve stenosis characterized by degenerative changes. Rheumatic mitral stenosis is common in developing countries and occurs in young adults, while degenerative mitral stenosis is common in developed countries and increases in incidence with aging. Mitral stenosis of different etiologies can lead to changes in heart structure and function, which affects the quality of life and prognosis of patients, so lifelong management of mitral stenosis is crucial. This article provides a comprehensive reference for clinicians in the management of mitral stenosis, with a detailed overview of the emerging prevalence features, imaging diagnosis, and treatment methods.
Objective To reconstruct the blood supply of hepatic artery of therecipient rat by a modified arterial “sleeve” anastomoses. Methods SD-SD and SD-Wistar rats liver transplantation were performed in 30 and 50 cases, respectively. The donor splenic artery, left gastric artery, right gastric artery and gastroduodenal artery were ligated, meanwhile the proper hepatic arteries were reserved. The celiac trunk of donors and the stump of right kidney artery of recipient were anastomosed by using 8-0 suture with “sleeve” technique. Results Themean time of artery anastomoses was 4.00±1.31 min.The rate of success was 96.3％. The longest survival time in the model SD-SD(29 survived) was more than 2months. In SD-Wistar(48 survived), acute rejectiion was observed 3-5 days after operation andthe mean survival time of rat was 9 d. Conclusion The modifiedarterial “sleeve” anastomoses is an effective method to reconstruct blood supply of hepatic artery of rat recipient in rat liver transplantation.
Objective To explore the effective method and the feasibil ity of the accurate l imb length equal ization in patients undergoing total hip arthroplasty (THA). Methods From September 2006 to September 2008, 52 patients underwentunilateral THA, including 36 males and 16 females, with an average age of 61.5 years (range, 46-76 years). Among these cases, there were 22 cases of avascular necrosis of the femoral head, 12 cases of hip osteoarthritis, 11 cases of femoral neck fracture, 4 cases of congenital dislocation of hip, and 3 cases of acetabular dysplasia. Forty cases had leg length discrepancy, and the shortened length of the legs was in the range of 10 mm to 35 mm with an average of 20 mm. The mean Harris score before operation was 45 points (range, 36-58 points). Based on the cl inical measurement and radiographic examination, the surgical protocols were designed, the type of the hip prosthesis was chosen, and the neck length of the femoral prosthesis, and the position of osteotomy were estimated. By the proper wearing of the acetabula, the best rotation point was found out. The cut plane of the femoral neck was adjusted according to the results of the radiographic and other examinations. The neck length was readjusted after the insertion of the prosthesis so as to achieve intended leg-length equal ization. The discrepancy of the leg length was measured and evaluated after operation. Results The incision healed by first intention in all patients. One patient had ischiadic nerve palsy and achieved full restoration after 5 months of symptomatic management. Forty-four patients were followed up 16 months on average (7-32 months). The mean Harris score was 87.5 points (80-91 points), showing significant difference (P lt; 0.05) whencompared with that before operation. The l imb length equal ization were got in 35 patients (equal ization rate was 79.5%). Seven patients had the prolong leg (from 10 mm to 18 mm), 2 patients had the shortened legs (15 mm and 25 mm, respectively). Conclusion By measurement of leg-length and radiographic examination before and during operation, the problem of unequal leg - length can be solved during the THA.