Objective To elucidate the clinical features and treatment of hemangiopericytomas (HPCs) in different parts of the body, especially in CNS. Methods Clinical data of 41 cases with HPC which were treated at 301 Hospital from 1993 to 2004 were retrospectively analyzed with a review of relevant literature. Follow-up periods ranged from 4 to 150 months after surgery (mean 34 months). Results Among 41 patients of HPC, 21 tumors (51.2%) were found in CNS, and the rest 20 (48.8%) in other systems. Thirteen tumors were diagnosed as malignant HPC. Surgery for tumor removal was performed in all 41 patients. Among the 62 operations, total removal of tumor was achieved in 49 cases and subtotal removal in 13 cases. Recurrence in original site of the tumor occurred 21 times (33.9%) in 14 patients. Five patients (12.1%) presented one or more distant metastasis, and 5 patients died. HPCs in CNS and in other systems displayed similar clinical characteristics and pathological morphology. Conclusions HPC is a rare angioneoplasm that may arise in any part of the body. It is a great challenge to neurosurgeons as well as other surgeons to surgically manage the tumor. HPC has an unfavorable prognosis because its high rate of recurrence and metastasis. HPC in CNS and in other parts of the body should be recognized as one disease. At the same time, HPC in CNS has its distinct features.

Objective To study the changes of six sex hormones corresponding to the follicle growth during the normal menstrual cycle of Chinese women.Methods Thirty Chinese women with regular menstrual period and average age of (28.8±3.2) years were selected for the study by Peking Union Medical College Hospital in September,2010.Growth of follicles was monitored by using transvaginal sonography.Six sex hormones,including follicle-stimulating hormone (FSH),luteinizing hormone (LH),estradiol (E2),progesterone (P),testosterone (T),and prolactin (PRL) were measured by chemoluminescence immunoassay every day during a menstrual cycle.Nonparametric statistical analysis was used.ResultsMenstrual cycle of all the patients was in the range of 25 to 39 d,with mean of (29.5 ± 3.1) d.Length of follicular phase and luteal phase was 15.3 and 14.4 d,respectively.Number of days from antral follicle to emergence of dominant follicle,and from the latter to ovulation,was 6.2 and 8.9 d,respectively.Average diameter of preovulatory follicle was 19.33 mm.Both FSH and LH reached peak on the day before ovulation.P started to increase before ovulation and remained at a high plateau from 6th to 9th day after ovulation.Both PRL and T reached peak after ovulation,near the end of a menstrual cycle.Conclusions A small rise of LH and P emerges just 1 to 2 d before ovulation,indicating the maturing of follicle.PRL and T shows cyclic changes as follicle grows.Therefore,PRL and T levels should be measured in the early follicle phases in the clinical practice so that leading the impact of menstrual cycle minimal.

Objective To explore the effect of the diet recovery time on postural hypotension after gynecological laparoscopic operation. Methods A total of 300 patients undergoing gynecological laparoscopy were randomly divided into observation group and control group according to the order of admission,150 cases in each group. Patients in observation group took liquid food since recovery from anesthetic, their appetite and dietary levels restored to preoperative level within 24 h after surgery from liquid diet to regular diet. Patients in control group were given routine nursing care of diet after belly operation. Results The diet recovery time and the anal exhaust time of patients in observation group were (21.2±3.5) h and (15.5±4.7) h, the control group were (46.8±5.4) h and (23.4±5.4) h, there was significant difference between two groups (t=7.543,5.126, P<0.05).The incidence rate of orthostatic hypotension in observation group was 9.3% (14/150), the control group was 33.3% (50/150), there wassignificant difference between two groups (χ2=8.907, P<0.05). Conclusions Patients undergoing gynecological laparoscopy took food as soon as possible, their appetite and dietary levels restored to preoperative level within 24 h after operation. It didn′ t increase abdominal distension, but helped the intestinal function recovery and helped to reduce the incidence of postoperative orthostatic hypotension.

Objective To study the relationship between breast symptom, characteristic of ultrasound image and sex hormone level in women with different menstruation status.Methods 50 women with normal men-strual cycle, 129 women in menopause transition and 318 menopausal women were recruited.Breast ultrasound were performed.Breast section thickness, ductal width, breast structure and blood flow were measured.Serum estradiol( E2 ) and progesterone( P) level were measured by enzyme immunoassay on the day when ultrasound was performed.Onset and persistent days of breast pain were recorded.Results ①32(60.4%)women with normal menstrual cycle and 74(57.4%)women in menopause transition women experienced cyclic mastalgia.The aver-age serum E2 level and serum progesterone level were higher in women with cyclic breast pain than in women with-out breast pain.12.5%of menopausal women had breast pain.There was no significant difference of average ser-um E2 level between women with cyclic breast pain and women without breast pain②Breast section thickness was (14.4 ±4.3)mm,(13.0 ±3.7)mm and(10.6 ±3.2)mm, and ductal width was(0.62 ±0.18)mm,(0.88 ± 0.39)mm and(0.90 ±0.47)mm in normal menstrual group, menopause transition group and menopausal group, respectively.The difference had statistical significance.③26 women ( 49.1%) in normal menstrual group had breast structure changes, while 42 cases ( 32.6%) and 60 cases ( 18.9%) in menopause transition group and menopausal group had breast structure changes.Conclusions Most women in normal menstruation and meno-pause transition group experience mastalgia.About 1/3 breast structure change in women of normal menstruation are inversible.About 1/2 breast structure change in menopause transition and menopausal group are similar to those with normal menstruation.

This study was aimed to investigate the effects of Chai-Hu Shu-Gan Tang (CHSGT) on levels of TNF-α and 5-HT in lithium chloride–pilocarpine caused epilepsy–depression comorbidity rat model, in order to discuss the intervention effect of CHSGT on TNF-α and 5-HT in epilepsy–depression comorbidity. The lithium chloride–pilocarpine caused epilepsy–depression comorbidity rat model was established. After 6 weeks of animal establishment, rats were randomly divided into 5 groups, which were citalopram group (A), physiological saline group (B), CHSGT high dose group (C), medium dose group (D), and low dose group (E). Intragastric administration was given for 4 weeks, twice a day. Before and after the treatment, RT-PCR was performed to detect hippocampal TNF-αlevels. Liquid chromatography-mass spectrometry was performed to detect hippocampal 5-HT levels. Both forced swimming test (FST) and saccharin preference test were carried out to monitor the depressive behaviors of rats. In the meantime, 24 hours a day video camera surveillance were performed to record the number of seizures of rats. The results showed that after treatment, the number of seizures of rats were significantly reduced, the accumulative immobility time in FST was shortened, and the consumption of sucrose increased significantly (P < 0.01) in group A, C and D. Compared with group B, after the treatment, the expressions of hippocampal TNF-α mRNA of rats in group A, C, D were distinctly downregulated, with the level of 5-HT significantly increased (P < 0.05,P < 0.01). Compared with group A, group C and D showed no significant changes. It was concluded that TNF-α played a role in the pathogenesis of epilepsy–depression comorbidity through mediating the level of 5-HT. High and medium doses of CHSGT can downregulate the expression of TNF-α mRNA in depression comorbidity of chronic temporal lobe epilepsy, increase 5-HT level, reduce the number of seizures of rats, and improve depressive behaviors.

Objective To improve the diagnosis and treatment of neurenteric cyst. Methods The clinical manifestations, MRI characteristics and surgical results of 11 cases of intraspinal neurenteric cysts were analyzed. Results Positive pathological signs and paresis appeared in all cases, and radicular pain in 9 cases. The symptoms were episodic in 2 cases whose courses were more than 3 years. MRI could clearly demonstrate the exact extension of the cyst and the surrounding structures. These cysts showed as slightly long T 1, long T 2 homogeneous signal on MRI. Their neurological functions improved steadily after complete resection in 8 cases, subtotal resection in 3 cases. Conclusion Neurenteric cysts are rare congenital lesions, often associated with vertebral anomalies and occurred at subdural cervical location, anterior to the cord. MRI is a more effective and convenient method for neurenteric cyst image investigation. Total or subtotal resection of neurenteric cysts with subsequent recovery in neurological function is usually possible.

BACKGROUND: There are few reports about vascularization in the repairing of bone defect by heterogeneous deproteinized bone.OBJECTIVE: To verify the vascularization characteristics of heterogeneous deproteinized bone, tissue engineering scaffold material, in the repairing of large segmental bone defect.DESIGN, TIME AND SETTING: The randomized controlled animal experiment was performed between March 2005 and February 2007 at the Third Military Medical University, Chongqing, China.MATERIALS: Twenty-four 10 to 12 months old goats, weighing (22.5±2.5)kg, were obtained from the Animal Center of the Third Military Medical University, Chongqing, China. Segmental bone defects of 20 percent right tibia middle and inferior diaphysis of the 24 goats were made.METHODS: The 24 goats were divided into test group (n=16) and control group (n=8) randomly. Goats in test group were implanted with deproteinized bone+autologous MSCs+recombinant human bone morphogenetic protein-2 (rhBMP-2), goats in control group were implanted with autograft bone, and all fixed with half-ring sulcated external fixator. Every 4 weeks, 3 goats were killed after ink perfusing through femoral artery. A thick slice of new bone tissue was made to observe the vascularization.MAIN OUTCOME MEASURES: Vascularization of new bone observed through gross anatomy and imaging; vascular network of new bone observed through thick section, blood vessel amount and area measured by Image-proplus really image analysis software.RESULTS: No goat was infected or dead. Animal soft tissue was dyed black, blood vessels'size, ditribution and network structure were observed in subcutaneous tissue, fascia and periosteum. At 4 weeks postoperation implant margin became crude in the defect area; at 8 weeks postoperation transparent bone absorbing area of different size and irregular shape appeared; after 12 weeks postoperation high-dense calcification shadow appeared at the ends of defect bone and new bone connected with the ends completely. On 4 to 24 weeks postoperation, the blood vessel amount became large, alignment became regular, and their size and distribution became uniform. It showed no significant difference in blood vessel amount and area between 2 groups (P>0.05).CONCLUSION: Composite of heterogeneous deproteinized bone+autologous MSCs+rhBMP-2 has the same vascularization degree. of autogeneous bone graft in repairing of large segmental tibia defect.

BACKGROUND: The anatomical position of facial nerve is often abnormal because of the acoustical neuroma growth, so sometimes, the facial nerve injury is inevitable in the surgery treatment for acoustic neuroma.OBJECTIVE: To investigate the technology, veracity and practicality as well as the relationship between intraoperative monitorning and prognosis of facial nerve, and the clinical experiment was summed up of facial nerve function monitoring in 120 cases of acoustic neuroma surgery.DESIGN: Self-control observation.SETTING: Department of Neurosurgery, General Hospital of Chinese PLA.PARTICIPANTS: Totally 120 patients with acoustic neuroma who received treatment in the Department of Neurosurgery, General Hospital of Chinese PLA from May 1996 to February 2000 were recruited. Among them, 3 cases suffered from small-type acoustic neuroma (＜ 2 cm in diameter), 9 cases from middle-type acoustic neuroma (＞ 2 cm in diameter) and 108 from large-type acoustic neuroma (＞ 3 cm in diameter), including 1 case of bilateral acoustic neuroma and 1 cases of recrudescent acoustic neuroma; Suboccipital retromastoid approach was used in 119 cases and transretrolabyrinthine approach in 1 case.METHODS: American Viking-Ⅳ type monitor was used to monitor facial nervous function. When facial nervous function was monitored, recording electrode was put on orbicular muscle of eye, orbicular muscle of mouth or quadrate muscle of upper lip. When trigeminal motor branch was monitored, recording electrode was put on masseter muscle; When accessory nerve was monitored, recording electrode was put on trapezius muscle.Measurement of evoked auditory brainstem potential: recording electrode was positive electrode and was put at the midline in the frontal region (electroencephalogram 10-20 classification system). The recorded waveshape presented upward deflection. Reference electrode A1 or A2 and ground electrode were put in the midline of frontal pole (relevant to root of nose); Recording electrodes were all needle electrodes and were fixed with adhesive tape. Common stimulus intensity was 80 to 90 nHL, and 40 nHL noise was used in contralateral ear. Facial nerve was reserved following intraoperative monitoring. CT (enhancement scanning was necessary) or MRI was rechecked after operation to investigate the cutting degree of tumor; Facial nerve function was evaluated by H-B scoring (at 2 weeks, or 6 to 9 months following operation).MAIN OUTCOME MEASURES: Facial nerve function by H-B scoring before and after acoustic neuroma surgery.RESULTS: Totally 120 patients were enrolled, and no one dropped out.① Facial nerve anatomy was reserved in 117 cases; One case was failure to reserve facial nerve anatomy because pinnate facial nerve lay behind of acoustic neuroma, and electrical stimulation was not given at the beginning of neuroma resecting, then he received anastomosis of hypoglossal and facial nerve. Nerve of 2 cases was pulled and broken carelessly, and its two stumps were long enough that end-to-end anastomosis of facial nerve was performed with 7-0 absorbable suture following trimming. H-B score was Ⅳ to Ⅴ in the 6th month after surgery. ②Grade Ⅰ of facial nervous function at postoperative 2 weeks was found in 10 cases, grade Ⅱ in 57 cases,grade Ⅲ in 44 eases, grade Ⅳ in 4 cases, grade Ⅴ in 2 cases and gradeⅥ in 3 cases. ③Grade Ⅰ of facial nervous function at postoperative 9 weeks was found in 94 cases, grade Ⅱ in 18 cases, grade Ⅲ in 4 cases,grade Ⅳ in 1 case and grade Ⅵ in 2 cases.CONCLUSION: Spontaneous and evoked facial muscle electromyogram may be helpful to make sure the facial nervous position exactly and estimate the prognosis of facial nerve.

Objective To investigate the impact of high intra-abdominal pressure on intracranial pressure in patients with traumatic brain injury and discuss the clinical significance of abdominal decom-pression. Methods Intra-abdominal pressure and intracranial pressure of 15 patients with abdominal trauma and brain injury were observed to discuss changes of intracranial pressure after abdominal decom-pression. Results After abdominal decompression, all patients got lower intracranial pressure, with decrease of (15.2±3.6) mm Hg. Conclusion Intra-abdominal pressure does affect intracranial pres-sure for patients with abdominal trauma and brain injury. Abdominal decompression may be effective for high intracranial pressure.

Objective To identify the potential neoplastic risk in gonadal development abnormality with Y chromosome.Methods Inquiries about the illness history were made.Lymphocyte chromosoreal karyotype of peripheral blood Was analyzed.Sex determining region Y gene and relative steroids and enzymes were detected.Gonadal site was examined through medical imaging.Conadal excision Was performed by laparotomy or laparoscopy.Pathological examinations were done on all of the specimens.Results Among 41 cases of androgen insensitive syndrome,spermatogenie cell neoplasm occurred in 1 patient,sertoli cell tumor in 2,and interstitial cell hyperplasia in 5.Among 14 cases of 17a.hydroxylase deficiency(XY)syndrome,one was sertoli eell tumor,and one Was sertoli cell hyperplasia.In 4 cases of XY pure gonadal dysgenesis.one was gonadoblastoma with dysgerminomm One of 16 cases of X0/XY gonadal dysgenesis Was spermatogenic cell neoplasm with agenda cell tumor.Four cases of testes degeneration were all with dysgenetic testes.All of the gonadoblastoma and germ-cell tumor were located in the pelvis.Tumors occurred mostly during 15 years of age to 32 years.Conclusions The gonads of XY pure gonadal dysgenesis has high risks of gonadoblastoma and germ-cell tumor.The older the onset age after puberty. the higher the malignancy risk is.Once diagnosed,bilateral gonads should be excised as soon as possible.