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1.
Chinese Journal of Microsurgery ; (6): 43-48, 2021.
Article in Chinese | WPRIM | ID: wpr-885765

ABSTRACT

Objective:To investigate the efficacy of microsurgical treatment in cavernous sinus tumors.Methods:The clinical data of 87 patients with cavernous sinus tumor treated by microsurgery from January, 2010 to August, 2019 were analysed retrospectively. The surgical approaches and microsurgical skills for common tumors in Cavernous Sinus region were discussed. The follow-up included outpatient and telephone follow-ups, and the follow-up results were evaluated by KPS score.Results:Among the 87 cases, 57 were totally resected (65.5%), 14 were subtotal resected (16.1%) and 16 were major resected (18.4%). Hospitalisation ranged from 14 to 98 days, with an average of 29 days. Postoperative complications occurred in 30 cases with cranial nerve injury, 2 brain stem injury, 4 postoperative bleeding, 5 cerebrospinal fluid leakage, 4 infection, 1 Pituitary damage and 1 death. Prognosis and follow-up analysis showed 68 cases with KPS>60 and 66 with KPS>80 at 1 month after surgery; 74 with KPS>70 and 72 with KPS>80 at 3 months after surgery; 78 with KPS>80 by 12 months after surgery. During the follow-up period of 6-120 months, 3 cases died. Recurrence: 6 of incomplete resection of meningioma, were in 1-6 years after the surgery, 4 of incomplete resection of schwannoma in 1-8 years, 2 of pituitary adenoma respectively in 13 and 16 months after the surgery. There was no recurrence after reoperation. Two cases of chondrosarcoma, 3 of chordoma and 3 of germinoma were treated with radiotherapy, and during the follow-up, there was no progress of the focus. No tumor progression or recurrence was found in other cases during follow-up.Conclusion:Surgery of cavernous sinus tumor is difficult due to frequent postoperative complications. Reasonable preoperative plan, surgical approach and precise microsurgical techniques are the keys in reduction of postoperative complications and in the improvement of prognosis.

2.
Journal of Medical Biomechanics ; (6): E596-E603, 2021.
Article in Chinese | WPRIM | ID: wpr-904443

ABSTRACT

Objective To establish a blast injury experimental model using a shock tube at lateral lying position of C57BL/6 mice, investigate biomechanical responses of macrophages/microglia cells in the heart, lung and brain tissues to mechanical damage by shock wave within 24 hours. Methods Shock tube was employed to generate a shock wave to C57BL/6 mice. Firstly, the weight changes of mice were measured at different time points after the shock. Then the cardiac, pulmonary and whole brain tissue samples were dissected after anesthesia. Pathological sections were stained with HE staining to detect structural damage; the TUNEL staining method was used to mark and count the proportion of dead cells in each tissue. Microglial cells were labeled with fluorescent antibody, while responses and changes of macrophages/microglia after shock loading were analyzed. Results The shock tube exerted 179 kPa overpressure shock wave upon sideway of the mouse, and lethal rate of the mouse was 3.33%. Compared with normal control group, the mice in experimental group had a significant weight loss within 24 hours after loading shock. Pathological sections showed rupture of lung tissues after shock, accompanied by alveolar protein deposition, pulmonary bulla and other diseases. Fluorescence staining showed that lung tissue was recruited and activated in a large amount within 24 hours. The proportion of dead cells cleared rebounded to normal level within 24 hours. The heart was highly tolerant to shock, and macrophages appeared near the large blood vessels. The brain showed unilateral aggregation of microglia due to the impact posture, mainly due to prolonged inflammation and a higher proportion of dead cells at the junction of gray and white matter. Conclusions A blast shock model at lateral lying position of the mouse was established. Within 24 hours, macrophages/microglia were recruited quickly to the injury site after being impacted, which mediated strong immune stress, and might participate in the immune response to trigger a second long-term inflammatory injury. The results of the study provide experimental basis for the evaluation of primary impact injury, such as dose-effect relationship and tissue damage difference.

3.
Chinese Journal of Postgraduates of Medicine ; (36): 607-611, 2019.
Article in Chinese | WPRIM | ID: wpr-753316

ABSTRACT

Objective To evaluate the value of CT plus CTA in emergency surgical treatment of spontaneous intracerebral hemorrhage caused by brain arteriovenous malformations(AVM). Methods A total of 15 cases diagnosed with spontaneous intracerebral hemorrhage by emergent CT examination in the Second Affiliated Hospital of Wenzhou Medical University were retrospectively reviewed from May 2015 to June 2018, and subsequent emergent CTA examination was adopted to verify whether the patients had brain AVM that was responsible for the hemorrhage. After diagnosis, emergency surgical resection of the brain AVM and evacuation of hematoma were performed. Glasgow outcome score (GOS) was used to evaluated the outcome. A secondary DSA or CTA was performed from 2 weeks to 6 months post the operation. Results All 15 cases exanimated by emergent CT plus CTA were demonstrated to have brain AVM and intracranial hematoma. All the patients received emergency brain AVM resection and hematoma evacuation. The surgical finding during operation was in line with what was seen on emergent CT plus CTA, and all cases got total hematoma evacuation. Twelve cases received total brain AVM resection, and the other 3 cases received partial resection because the residual AVM foci existed in deep brain structures . After the operation, none had rebleeding at the surgical site. Follow-up DSA or CTA confirmed the 12 cases had total resection and the other 3 cases had partial resection. All patients were alive after the surgery and GOS scores during the follow-up time, from 2 weeks to 6 months after emergency surgery, were: 5 in 6 patients, 4 in 4 patients, 3 in 4 patients and 2 in 1 patient. Conclusions CT plus CTA can better show the relationship between vascular malformation, hematoma, and the adjacent anatomical structure, and therefore may contribute to intraoperative judgment and complete resection of vascular malformation. It is a practical imaging tool for the preoperative evaluation and emergency surgical treatment of spontaneous intracerebral hemorrhage caused by brain AVM.

4.
Journal of Central South University(Medical Sciences) ; (12): 383-387, 2018.
Article in Chinese | WPRIM | ID: wpr-693826

ABSTRACT

Objective:To evaluate the value of intraoperative magnetic resonance imaging (iMRI) combined with neuronavigation for the resection of insular gliomas.Methods:From August 2014 to October 2017 in the First Hospital Affiliated to Sun Yat-sen University,clinical data of 41 patients with insular glioma,who underwent the surgery assisted with 3.0T iMRI and neuronavigation,were analyzed retrospectively,and the resection extent,complications and prognosis were evaluated.Results:Subtotal tumor resection was achieved in 21 patients and partial resection was done in 20 after iMRI scanning.After further resection,total tumor resection was achieved in 16 patients,subtotal resection in 18 and partial resection in 7.There was a statistical significant difference in tumor resection between pre-iMRI and post-iMRI according to the Fisher test (P<0.05).In the follow-up from 3 months to 3 years,the symptoms of the 41 patients had improved.Conclusion:iMRI corrected the shift of brain.Neuronavigation can accurately and timely assess the degree of resecting tumor.The combination of neuronavigation with surgery can maximally and safely resect insular glioma.

5.
Chinese Journal of Plastic Surgery ; (6): 64-67, 2018.
Article in Chinese | WPRIM | ID: wpr-805935

ABSTRACT

Objective@#To discuss the etiology, pathogenesis, clinical manifestation, diagnosis and therapy of sphenoid wing dysplasia(SWD) associated with neurofibromatosis type Ⅰ(NF-Ⅰ).@*Methods@#We retrospectively reviewed its clinical manifestations, imaging, surgical treatment, complications and postoperative outcome of one NF-Ⅰ patient with SWD.@*Results@#A 14 years-old girl presented with pulsating exophthalmos, loss of vision and café au lait spots. Radiological studies showed right-side orbital enlargement and complete absence of the greater wing of the sphenoid. Titanium mesh was tailored intraoperatively to close the defect as a barrier between the orbital cavity and the cranium and then covered by periosteum.The patient developed postoperative infectious which was controlled by after antibiotic treatment and proper drainage. Proptosis improved significantly after surgery within a month. Ocular pulsation subsided and clinical symptoms improved at 28-month follow-up.@*Conclusions@#Sphenoid greater wing dysplasia associated with neurofibromatosis type Ⅰ is a rare inherited autosomal dominant disorders. The treatment should be customized to each patient. Titanium mesh reconstruction is patients with symptomatic sphenoid dysplasia. It can correct the proptosis and pulsating exophthalmos without the risk of bone resorption and recurrence.However, high risk of infection is associated with the procedure.

6.
Journal of Medical Research ; (12): 102-105, 2017.
Article in Chinese | WPRIM | ID: wpr-607521

ABSTRACT

Objective To investigate the surgical indications and suigical procedures of traumatic posterior fossa epidural hematomas of 17 cases in children.Methods Clinical data of 17 children who admitted into our hospital from 2010 to 2015 with posterior fossa epidural hematomas were retrospectively reviewed.We summarized he surgical indications and operation selection of posterior fossa epidural hematomas in children.Results The suigical procedures of all patients in our group included the following:8 patients were treated with traditonal craniectomy,9 patients were treated with drilling skull plus urokinase.All patients recovered well after operation.Complications:hydrocephalus in 2 cases,epilepsy in 1 case.The outcome evaluated using the Glasgow outcome score(GOS) was good in 15 patients,mild disability in 1,severe disability in 1.Conclusion The clinical status of posterior fossa epidural hematoma can progress rapidly in children.It is crucial for early diagnosis and timely surgical intervention when it is indicated.In addition,the surgical procedures should be selected properly,the overall prognosis is excellent.

7.
Chinese Journal of Traumatology ; (6): 212-215, 2017.
Article in English | WPRIM | ID: wpr-330407

ABSTRACT

<p><b>PURPOSE</b>Posterior fossa epidural hematomas (PFEDH) are uncommon in children but usually require timely surgical intervention due to the risk of life-threatening brainstem compression. We attempt to make the surgical procedure less invasive by treating selected pediatric patients with trephination mini-craniectomy.</p><p><b>METHODS</b>We retrospectively reviewed the clinical courses, radiological findings, surgical procedures, and prognoses of the pediatric patients who were treated in our departments for traumatic PFEDH from January 2010 to January 2015.</p><p><b>RESULTS</b>During this period, a total of 17 patients were surgically treated for PFEDH and 7 were managed with trephination mini-craniectomy for hematoma evacuation. The outcomes were good in all 7 patients as evaluated with Glasgow Outcome Score. There was no mortality in this series. The on average 30-month clinical follow-up showed that patients experienced satisfactory recoveries without complications.</p><p><b>CONCLUSION</b>Our results suggest that trephination mini-craniectomy is a safe surgical technique for selected PFEDH patients with moderate hematoma volume and stabilized neurological functions. However, standard craniectomy is recommend when there are rapid deteriorations in patients' neurological functions or the hematomas are large and exerted severe mass effects.</p>

8.
Chinese Journal of Postgraduates of Medicine ; (36): 350-353, 2016.
Article in Chinese | WPRIM | ID: wpr-486891

ABSTRACT

Objective To analyze the clinical characteristics of children massive cerebral infarction after traumatic brain injury. Methods The clinical data of 33 children with massive cerebral infarction after traumatic brain injury were retrospectively analyzed. Results Among the 33 children, 24 cases suffered from falling, 10 cases were involved in traffic accidents, 1 case suffered from violence and 1 case was hit by falling object. The massive cerebral infarction occurred in all objects: 9 cases in 1 day after head trauma, 14 cases in 1 - 3 days, 7 cases in 4 - 7 days, and 3 cases after 7 days. Eighteen patients were performed operation to evacuate the intracranial hematoma and decompression. Antiplatelet agents, calcium antagonist and low molecular dextran were administered in all patients after exclusion of bleeding tendency. The follow-up period of all children ranged from 6 months to 24 months. According to Glasgow outcome score (GOS):18 cases showed a good outcome, 6 cases were moderately disabled, 1 case was severely disabled, 1 case survived in a permanent vegetative state and 7 cases died. Conclusions The main causes of children massive cerebral infarction with traumatic brain injury are falling and traffic accident. With proactive treatment, the prognosis of children survivors is acceptable.

9.
Chinese Journal of Nervous and Mental Diseases ; (12): 469-472, 2016.
Article in Chinese | WPRIM | ID: wpr-502896

ABSTRACT

Objective To explore the expression of Speckle-type POZ protein-like(SPOPL)in human glioma tis?sues and its relationship with clinical pathological parameters and prognosis. Methods Immunohistochemical and west?ern blotting method were used to detect SPOPL expression in glioma tissues and tumor peripheral tissues in 68 cases of glioma patients including 32 cases of low grade gliomas (WHO I- II), and 36 cases of high grade gliomas (WHO III-IV). T test,χ2 test, Kaplan-Meier method and the Cox regression model were used to analyze the relationship between the expression and clinical indicators. Results The expression of SPOPL was significantly lower in gliomas than in tumor pe?ripheral tissues (t=-8.754, P<0.05), the expression of SPOPL was lower in high pathological grade tissues than in low grade of glioma tissues (t=-13.552, P<0.05). SPOPL expression was associated with pathological grade ( χ2=4.023, P<0.05). Cox regression model showed that the tumor pathological grade and different SPOPL protein expression were inde?pendent risk factors for the prognosis of patients with glioma. Conclusions SPOPL may be a biomarkers of human brain gliomas and can help to evaluate the prognosis of brain glioma.

10.
Chinese Journal of Trauma ; (12): 400-402, 2015.
Article in Chinese | WPRIM | ID: wpr-473603

ABSTRACT

Objective To investigate the diagnosis,treatment and prognosis of isolated epidural hematoma (EDH) in children.Methods Clinical data of 83 children,45 males and 38 females (at age of 0.7-14 years),with EDH treated between January 2012 and October 2014 were retrospectively reviewed.Slipping and falling were the most commonly causes of injury.While motor-vehicle accident was noted with increased age.In 16 patients lesion of hematoma was frontal,in 28 patients temporal,in 13 patients parietal,in 9 patients occipital and in 17 patients posterior fossa.Results Of the 28 patients treated surgically,the outcome evaluated using the Glasgow Outcome Score (GOS) was good in 22 patients,mild disability in 2,moderate and severe disability in 1 and death in 3 (one died of venous sinus rupture and one large area infarction).Of the 55 patients treated conservatively,the outcome was good in 52 patients,mild disability in 1,and death in 2 (both presented with bilateral cerebral hernia on admission and one of them was unable to breath spontaneously).Conclusions Overall prognosis of the patients with isolated EDH in children is excellent.Complications of venous sinus rupture,foramen magnum hernia and large area cerebral infarction may contribute to poor prognosis.

11.
Chinese Journal of Tissue Engineering Research ; (53): 6902-6906, 2014.
Article in Chinese | WPRIM | ID: wpr-474843

ABSTRACT

BACKGROUND:In the comminuted fractures of the shafts of long bones, the fracture repair process may be halted after internal fixation by locking compression plate and a higher bone nonunion rate occurs due to severe soft tissue damage, inadequate blood supply, poor cortical apposition, or unstable fracture fixation. <br> OBJECTIVE:To examine the effect of bone morphogenetic protein in the prevention of nonunion of long bone comminuted fractures after internal fixation by locking compression plate. <br> METHODS:Total y 145 long bone comminuted fracture patients were enrol ed and randomly divided into test and control groups according to the wishes of patients. The test group included 78 patients (48 males and 30 females, 18-70 years old;57 cases of closed fractures and 21 cases of open fractures) who were treated with internal fixation by locking compression plate combined with bone morphogenetic protein;the control group included 67 patients (42 males and 25 females, 18-71 years old;49 cases of closed fractures and 18 cases of open fractures) who were treated with internal fixation by locking compression plate. The fracture healing time and rate of non-union were detected and compared in the two groups after a postoperative fol ow-up of 6-18 months. <br> RESULTS AND CONCLUSION:In the test group, the average fracture healing time was 6.17 months, without non-union. In the control group, the average fracture healing time was 7.24 months, and the rate of non-union was 7%. Compared with the control group, the fracture healing time was shorter and the rate of non-union was lower in the test group (P<0.05). The use of bone morphogenetic protein is an effective method to shorten fracture healing time and prevent non-union of long bone comminuted fractures after internal fixation by locking compression plate.

12.
Chinese Journal of Trauma ; (12): 211-214, 2012.
Article in Chinese | WPRIM | ID: wpr-425118

ABSTRACT

ObjectiveTo evaluate the mortality and morbility of children with severe traumatic brain injury (sTBI) following treatment with decompressive craniectomy and further analyze its long-term outcomes.Methods Seventeen children with sTBI undergone decompressive craniectomy between 2004 and 2010 were retrospectively studied.Quality of life of the patients who survived the operation was assessed by using the King' s outcome scale for childhood head injury (KOSCHI).ResultsOf 17 children with sTBI,the mean preoperative Glasgow Coma Scale (GCS) score was 5.27.Five children (29%) died postoperatively,of whom three children were died of cerebral infarction.Twelve children who survived the operation were followed up for average 4.6 years,which showed the mean KOSCHI score of 4.75.Among the 12 survivors,five patients (42%) experienced posttraumatic shunt-dependent hydrocephalus and four (33%) suffered ipsilateral and/or contralateral hygroma.ConclusionsAlthough a high mortality rate is observed in the children with sTBI after decompressive craniectomy,the survived patients have satisfactory outcomes. Posttraumatic hydrocephalus and hygroma are two common complications after decompressive craniectomy for children with sTBI.

13.
China Journal of Orthopaedics and Traumatology ; (12): 915-917, 2011.
Article in Chinese | WPRIM | ID: wpr-347005

ABSTRACT

<p><b>OBJECTIVE</b>To introduce the characteristics and its clinical effects of Hennipen external rotation procedure for reduction of acute anterior shoulder dislocation.</p><p><b>METHODS</b>From March 2007 to March 2010, 72 patients with acute anterior shoulder dislocation were treated with manipulative reduction in our department. All the patients were divided into two groups: the Hippocratic group with 44 patients receiving regular Hippocratic procedure, and the Hennipen group with 28 patients receiving Hennipen external rotation procedure. Clinical manifestation and radiology were used to diagnose. After reduction procedures, external fixation was applied for another 3 to 4 weeks. The reduction course, complication and function recovery at follow-up were recorded and compared. The student test was used to analyze the difference between groups.</p><p><b>RESULTS</b>Thirty-two patients in the Hippocratic group and 3 in Hennipen received intravenous anesthesia. Manipulation time of the Hippocratic group ranged from 2 to 5 minutes with a mean of (3.9 +/- 1.2) minutes, obviously different from that of Hennipen,which ranged from 0.5 to 2 minutes with a mean of (1.3 +/- 0.7) minutes. Complications occurred in 2 cases of the Hippocratic group and none of the Hennipen group. The UCLA scores of shoulder joint at follow-up were 34.2 +/- 2.1 and 33.8 +/- 1.0 respectively in two groups, with no significant difference.</p><p><b>CONCLUSION</b>Compared with Hippocratic procedure, Hennipen external rotation procedure is easier to manipulate, bring less complications and the same effect. It is worth further clinical applications.</p>


Subject(s)
Adult , Female , Humans , Male , Acute Disease , Case-Control Studies , Manipulation, Orthopedic , Methods , Rotation , Shoulder Dislocation , Therapeutics
14.
Chinese Journal of Pediatrics ; (12): 140-145, 2009.
Article in Chinese | WPRIM | ID: wpr-360359

ABSTRACT

<p><b>OBJECTIVE</b>Intra-ventricular hemorrhage (IVH) is one of the most serious complications of preterm infants. Significant numbers of the surviving infants with severe IVH go on to develop post-hemorrhagic hydrocephalus (PHH). The management of PHH remains a very challenging problem for both neonatologists and pediatric neurosurgeons. This study aimed to evaluate the efficacy and safety of the use of Ommaya reservoirs and serial cerebrospinal fluid (CSF) drainage in the management of a series of neonates with PHH.</p><p><b>METHOD</b>Between January 1, 2003 and December 30, 2005, 15 consecutive newborn infants with IVH grades III to IV, complicated with progressive ventricular dilatation, underwent placement of an Ommaya reservoir. CSF was intermittently aspirated percutaneously from the reservoir. The amount and frequency of CSF aspiration were based on the clinical presentation and the follow-up results of serial cranial ultrasonograms or CT scans. The changes of CSF cell counts and chemistries were also followed. Patients whose progressive ventricular dilatation persisted despite serial CSF aspiration through Ommaya reservoir eventually had ventriculo-peritoneal shunts (V-P shunt) placed. All the patients were followed up in the outpatient clinic after discharge from the hospital and the neurodevelopmental outcomes were evaluated through 18-36 months of age.</p><p><b>RESULT</b>A total of 15 infants were included in this series. Of them, 11 were preterm infants who were at gestational ages of 29 to 34 weeks and 4 infants were full-term. All of the 4 full term infants presented with progressive ventricular dilatation after suffering from the intra-cranial hemorrhage (3 infants were due to vitamin K deficiency and 1 was due to birth trauma). Thirteen infants had grade III IVH, and 2 had grade IV IVH based on initial cranial ultrasonographic and CT scans. The mean age when IVH was diagnosed was (9 +/- 1) days in preterm infants and (22 +/- 7) days in full-term infants; the mean age when Ommaya reservoir was placed was (18 +/- 11) days in preterm infants and (31 +/- 7) days in full-term infants. All the infants tolerated the surgical procedure well. The Ommaya reservoir was tapped for an average of (21.5 +/- 4.6) times per patient. The mean CSF volume per tap was (10.2 +/- 1.3) ml/kg. The values of CSF protein, glucose and cell counts slowly reached normal levels at approximately 3 - 5 weeks after the placement of the reservoir. The velocity of head circumference increase per week was less than 1 cm in 13 patients in 1 - 4 weeks after the placement of the reservoir and the size of ventricles decreased gradually. By 12 - 18 months, 12 infants had normal size ventricles, and 1 patient still had mild ventricular dilation at 36 months. Two infants developed progressive hydrocephalus after serial CSF aspiration through Ommaya reservoir. One infant had a V-P shunt placed at 2 months of age and another infant died at 3 months of age at home after parents refused further therapy. Complications consisted of reservoir leaking and CSF infection at 16th day of placement in one patient after repeated tapping. By the end of 18 - 36 months of follow-up, 11 of 14 infants were considered normal, two patients had mild impairment in neurodevelopmental outcome (both had spastic bilateral lower limbs paresis, and one of whom also had amblyopia) and the other had seizure disorder.</p><p><b>CONCLUSION</b>The results from this series indicate that the placement of an Ommaya reservoir is relatively safe in newborn infants and is useful in the initial management of neonates with PHH and may be beneficial in improving their neurodevelopmental outcomes. A multicenter randomized trial may be needed to further validate the results of this report.</p>


Subject(s)
Female , Humans , Infant, Newborn , Male , Cerebral Hemorrhage , Therapeutics , Cerebral Ventricles , Drainage , Methods , Hydrocephalus , Therapeutics , Subdural Effusion , Therapeutics
15.
Chinese Journal of Tissue Engineering Research ; (53)2007.
Article in Chinese | WPRIM | ID: wpr-591017

ABSTRACT

AIM: To observe the curative effect of internal fixation of patellar fracture by cannulated compression screws combined with circumferential loop and tension band wire. METHODS: From May 2001 to February 2006, 24 cases of patellar fracture treated with cannulated compression screws combined with circumferential loop and tension band wire were enrolled at Department of Orthopaedics, Renmin Hospital, Wuhan University. It involved 15 males and 9 females, averagely 32 years (18-60 years). There were 14 cases of transverse fracture, 10 cases of comminuted fracture, and all cases were closed fracture. The operation was performed 2-6 hours after injury. X-ray was done at weeks 4, 6, 8 and 10 after operation respectively to observe the material and host reaction. Function was assessed by curative effect assessment criteria made by Lu et al. RESULTS: Totally 22 cases were followed-up. Follow-up period was 4 months to 24 months (mean 10 months). One patient was followed up for 4 months, 5 cases for 6 months, 5 cases for 8 months, 4 cases for 10 months, 3 cases for 12 months, 2 cases for 14 months, 1 case for 18 months and 1 case for 24 months. ①Reduction rate of fracture was 100%. Incision was primary healing. The fractures healed 4-10 weeks after operation, averagely 6 weeks. ②Twenty patients had excellent curative effect, and two patients had good curative effect. ③No corrosion, cinch and breakage were found after operation. ④Peplos appeared at the junction of steel-wire when the fracture was healed. CONCLUSION: Cannulated compression screws combined with circumferential loop and tension band wire is the ideal implant for the patellar fracture. No pain or steel-wire cinch induced by soft tissue stimulation is found.

16.
Chinese Journal of Traumatology ; (6): 225-229, 2005.
Article in English | WPRIM | ID: wpr-338608

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effect of pyrroloquinoline quinone (PQQ) on nerve regeneration of transected sciatic nerve in animal models.</p><p><b>METHODS</b>Forty SD rats weighing 220-240 g were randomized into a PQQ group (n = 20) and a control group (n = 20). Each animal underwent sciatic nerve transection operation. After the operation, PQQ 0.5 ml (250 microg/Kg) was injected at the operation site in the PQQ group, while the same volume of normal saline was delivered in the control group. Nerve functional evaluation, electrophysiological index recording were carried out according to the experimental design. Newly generated nerve specimens were harvested 12 weeks postoperatively for morphological studies.</p><p><b>RESULTS</b>In the PQQ group there was a good nerve regeneration and the sciatic nerve function, sciatic nerve function index, electrophysiological index and morphological appearance were superior to the control group (P < 0.05).</p><p><b>CONCLUSIONS</b>PQQ has a remarkable effect in enhancing nerve regeneration of transected peripheral nerve.</p>


Subject(s)
Animals , Male , Rats , Nerve Regeneration , PQQ Cofactor , Pharmacology , Rats, Sprague-Dawley , Sciatic Nerve , Wounds and Injuries , Pathology , Physiology
17.
Chinese Journal of Tissue Engineering Research ; (53): 15-17, 2001.
Article in Chinese | WPRIM | ID: wpr-410173

ABSTRACT

How to select effective therapy has been a troublesome problem in Orthopaedic Surgery. The authors introduced several operative approaches and discussed some commonly used operative methods to correct deformity, improve life and professional exercise ablilty.

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