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Teaching method of grouping and numbering the experimental animals refers to management of laboratory animals by marking them with numbers. In an experimental group, the same marked experimental animal is performed surgery operation by each group member. As a whole, each group member gets the same score according to the evaluation of operation performance of that group and the score is recorded as usual performance score. This method is simple and easy to implement. It is the optimizing of traditional basic operative surgery teaching methods which is conducted not only to improve medical students' sense of responsibility and animal protection awareness, to make full use of teaching resources and reduce waste, to cultivate medical students' team cooperation awareness, but also to deepen medical students' knowledge about surgical complications and improve the quality of teaching.
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As a fundamental medical course,operative surgery is featured by basic skill acquirement and plenty of practice.The teaching method for operative surgery is different compared with that for other medical course.Personal digital assistant (PDA) was adopted to facilitate the teaching of the course and this was an innovation.By taking advantage of its multiple electronic functions and various application softwares,PDA was applied to arrange class schedule,show teaching demonstration,make action analysis and give feedback and incentives of both students and teachers.In this way,PDA was proved to be an effective educational media for teaching of operative surgery.
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Objective To evaluate low-weight mesh for tension-free repair of inguinal hernia in the elders. Methods 120 old patients ( age at 60 -97 years) underwent tension-free repair of inguinal hernia by using low-weight mesh. The early complications, time of up and about, hospital stay, postoperative chronic pain,foreign body feelings and hernia recurrence were analyzed. Results The operations were successful in all cases and the average time of operation was (43 ± 12 ) min. 9 cases suffered from edema of the scrotum, 5 cases suffered urine retention, 4 cases suffered from incision hematoma. The average time of outof-bed was ( 17.4 ± 1.8 ) h, the average hospital days was ( 7.4 ± 1.9) d. However, there were 1.7%(2/120) patients suffering from slight chronic pain and 9. 1% (11/120) patients complaining foreign body feelings. There was no recurrence after follow-up for 6 to 48 months. Conclusions The clinical application of low-weight mesh for tension-free repair of inguinal hernia in old age is safe and effective, with an additional advantage of low occurrence of chronic pain and foreign body feelings.
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Objective: To investigate the surgical methods and outcomes of the enlarged translabyrinthine approach in the removal of large acoustic neuromas. Methods: A large mastoidectomy involved complete exposure of the sigmoid sinus, the dura behind the sinus for at least 1 cm, the superior petrosal sinus and the middle fossa dura. The jugular bulb was exposed and pressed downwards if necessary. The internal auditory meatus was skeletonized and uncovered for at least 270°.The debulking of the tumor began inside the anterior and inferior poles in order to find the brainstem and the facial nerve root as early as possible, and then the dissection of the nerve was done medially to laterally. Intraoperative facial nerve monitoring and postoperative CT and MRI were done in all cases. Results: Total removal was achieved in all 18 patients with tumors larger than 3 cm (mean size: 4.2 cm). There were no deaths or other complications such as intracranial infection and persistent cerebrospinal fluid leakage. There were no obvious cerebral sequelae. The facial nerve was preserved both anatomically and functionally in 14 cases, with Grade Ⅰ or Ⅱ in 8 cases, Grade Ⅲ or Ⅳ in 6 cases. Nerve interruption occurred in 4 patients who all had severe facial palsy or nerve interruption before operation. Sixteen patients resumed work within 1-3 months. Conclusion: Total removal of large acoustic neuroma could be acomplished via the translabyrinthine approach, with good preservation of facial nerve function and minimum incidence of morbidity.
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Objective: To investigate the surgical methods and outcomes of the enlarged translabyrinthine approach in the removal of large acoustic neuromas. Methods: A large mastoidectomy involved complete exposure of the sigmoid sinus, the dura behind the sinus for at least 1 cm, the superior petrosal sinus and the middle fossa dura. The jugular bulb was exposed and pressed downwards if necessary. The internal auditory meatus was skeletonized and uncovered for at least 270°.The debulking of the tumor began inside the anterior and inferior poles in order to find the brainstem and the facial nerve root as early as possible, and then the dissection of the nerve was done medially to laterally. Intraoperative facial nerve monitoring and postoperative CT and MRI were done in all cases. Results: Total removal was achieved in all 18 patients with tumors larger than 3 cm (mean size: 4.2 cm). There were no deaths or other complications such as intracranial infection and persistent cerebrospinal fluid leakage. There were no obvious cerebral sequelae. The facial nerve was preserved both anatomically and functionally in 14 cases, with Grade Ⅰ or Ⅱ in 8 cases, Grade Ⅲ or Ⅳ in 6 cases. Nerve interruption occurred in 4 patients who all had severe facial palsy or nerve interruption before operation. Sixteen patients resumed work within 1-3 months. Conclusion: Total removal of large acoustic neuroma could be acomplished via the translabyrinthine approach, with good preservation of facial nerve function and minimum incidence of morbidity.
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Objective: To investigate the surgical methods and outcomes of the enlarged translabyrinthine approach in the removal of large acoustic neuromas. Methods: A large mastoidectomy involved complete exposure of the sigmoid sinus, the dura behind the sinus for at least 1 cm, the superior petrosal sinus and the middle fossa dura. The jugular bulb was exposed and pressed downwards if necessary. The internal auditory meatus was skeletonized and uncovered for at least 270°.The debulking of the tumor began inside the anterior and inferior poles in order to find the brainstem and the facial nerve root as early as possible, and then the dissection of the nerve was done medially to laterally. Intraoperative facial nerve monitoring and postoperative CT and MRI were done in all cases. Results: Total removal was achieved in all 18 patients with tumors larger than 3 cm (mean size: 4.2 cm). There were no deaths or other complications such as intracranial infection and persistent cerebrospinal fluid leakage. There were no obvious cerebral sequelae. The facial nerve was preserved both anatomically and functionally in 14 cases, with Grade Ⅰ or Ⅱ in 8 cases, Grade Ⅲ or Ⅳ in 6 cases. Nerve interruption occurred in 4 patients who all had severe facial palsy or nerve interruption before operation. Sixteen patients resumed work within 1-3 months. Conclusion: Total removal of large acoustic neuroma could be acomplished via the translabyrinthine approach, with good preservation of facial nerve function and minimum incidence of morbidity.
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Objective:To investigate the surgical methods and results of enlarged translabyrinthine approachin the removal of large acoustic neuromas. Method:A large mastoidectomy involved complete exposure of sigmoidsinus, the dura behind the sinus for at least lcm, the superior petrosal sinus and the middle fossa dura. Thejugular bulb was exposed and pressed downwards if necessary. The internal auditory meatus was skeletonizedand uncovered for at least 270°. The debulking of the tumor began inside the anterior and inferior poles in orderto find the brainstem and the facial nerve root as early as possible, then the dissection of the nerve was performedmedially to laterally. Intraoperative facial nerve monitoring and postoperative CT and MRI were performed in allcases. Result:Total removal was achieved in all 18 patients with tumors larger than 3 cm (mean size:4.2 cm).There were no death as well as other complications such as intracranial infection and persistent cerebrospinalfluid leakage. There were no obvious cerebral sequela. The facial nerve was preserved both anatomically andfunctionally in 14 cases, with Grade Ⅰ or Ⅱ in 8 cases,Grade Ⅲ or Ⅳ in 6 cases. Nerve interruption occurred in4 cases who all had severe facial paralysis or nerve interruption before operation. 16 patients returned to workwithin 1～3 months. Conclusion: Total removal of large acoustic neuroma could be acomplished via thetranslabyrinthine approach, with good result of facial nerve function and minimum incidence of morbidity.
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Objective: To discuss how to improve the level of diagnosis and treatment about the firstbranchial fistula. Method:16 cases with the first branchial fistula were analyzed retrospectively. Result :Of all thepatients underwent surgery, 14 cases were free from disease postoperatively within 0.5 years follow-up, 2patients underwent re-operation because of recurrence. Conclusion:Knowing about the disease fully, selectingproper surgical incision and possessing skilled surgical technique is important to improve the level of diagnosisand treatment about the first branchial fistula.