OBJECTIVE: Minocycline, a second-generation tetracycline-class antibiotic, has been well established to exert a neuroprotective effect in animal models and neurodegenerative disease through the inhibition of microglia. Here, we investigated the effects of minocycline on motor recovery and neuropathic pain in a rat model of spinal cord injury. METHODS: To simulate spinal cord injury, the rats' spinal cords were hemisected at the 10th thoracic level (T10). Minocycline was injected intraperitoneally, and was administered 30 minutes prior surgery and every second postoperative day until sacrifice 28 days after surgery. Motor recovery was assessed via the Basso-Beattie-Bresnahan test. Mechanical hyperalgesia was measured throughout the 28-day post-operative course via the von Frey test. Microglial and astrocyte activation was assessed by immunohistochemical staining for ionized calcium binding adaptor molecule 1 (Iba1) and glial fibrillary acidic protein (GFAP) at two sites: at the level of hemisection and at the 5th lumbar level (L5). RESULTS: In rats, spinal cord hemisection reduced locomotor function and induced a mechanical hyperalgesia of the ipsilateral hind limb. The expression of Iba1 and GFAP was also increased in the dorsal and ventral horns of the spinal cord at the site of hemisection and at the L5 level. Intraperitoneal injection of minocycline facilitated overall motor recovery and attenuated mechanical hyperalgesia. The expression of Iba1 and GFAP in the spinal cord was also reduced in rats treated with minocycline. CONCLUSION: By inhibiting microglia and astrocyte activation, minocycline may facilitate motor recovery and attenuate mechanical hyperalgesia in individuals with spinal cord injuries.
Animals ; Astrocytes ; Calcium ; Extremities ; Glial Fibrillary Acidic Protein ; Horns ; Hyperalgesia ; Injections, Intraperitoneal ; Microglia ; Minocycline ; Models, Animal ; Motor Neurons ; Neuralgia ; Neurodegenerative Diseases ; Neuroprotective Agents ; Rats ; Spinal Cord ; Spinal Cord Injuries

PURPOSE: We report a case of a patient with ptosis, lid swelling, limitation of ocular movement, and visual disturbance after a trauma. The patient was diagnosed with unilateral orbital cellulitis, ophthalmic vein thrombosis and bilateral septic cavernous thrombosis and treated. CASE SUMMARY: After head and facial area trauma that occurred 1 month earlier, a 56-year-old man suffered from ongoing visual loss, limitation of ocular movement in all directions, proptosis in the left eye and abduction limitation of the right eye. A week before admission, mild fever and chills were also present. At admission, visual acuity of the left eye was no light perception and pupil reflex was lost. Brain MRA and MRI indicated dilation and thrombosis of the left superior ophthalmic vein, left orbital cellulitis and inflammation in bilateral cavernous sinuses. The patient was immediately treated with systemic antibiotics and steroid injection. Coagulase negative staphylococci were detected in blood culture. CONCLUSIONS: Infection caused by facial trauma spread through the facial area's venous plexus and caused orbital cellulitis. As a result, septic cavernous sinus thrombosis and ophthalmic vein thrombophlebitis occurred. Serious complications can occur after facial trauma, thus rapid differential diagnosis and appropriate treatment are important in determining prognosis.
Anti-Bacterial Agents ; Brain ; Cavernous Sinus ; Cavernous Sinus Thrombosis ; Caves ; Chills ; Coagulase ; Diagnosis, Differential ; Exophthalmos ; Eye ; Fever ; Head ; Humans ; Inflammation ; Light ; Orbital Cellulitis ; Prognosis ; Pupil ; Reflex ; Thrombophlebitis ; Thrombosis ; Veins ; Visual Acuity

Isolated hypoglossal nerve paresis due to mechanical compression from a vascular lesion is very rare. We present a case of a 32-year-old man who presented with spontaneous abrupt-onset dysarthria, swallowing difficulty and left-sided tongue atrophy. Brain computed tomographic angiography and magnetic resonance imaging of the brainstem demonstrated an abnormal course of the left vertebral artery compressing the medulla oblongata at the exit zone of the hypoglossal rootlets that was relieved by microvascular decompression of the offending intracranial vertebral artery. This case supports the hypothesis that hypoglossal nerve palsy can be due to nerve stretching and compression by a pulsating normal vertebral artery. Microvascular decompression of the intracranial nerve and careful evaluation of the imaging studies can resolve unexpected isolated hypoglossal nerve palsy.
Adult ; Angiography ; Atrophy ; Brain ; Brain Stem ; Deglutition ; Dysarthria ; Humans ; Hypoglossal Nerve ; Hypoglossal Nerve Diseases ; Magnetic Resonance Imaging ; Medulla Oblongata ; Microvascular Decompression Surgery ; Nerve Expansion ; Paresis ; Tongue ; Vertebral Artery

OBJECTIVE: In the field of spinal surgery, a few laboratory results or clinical cases about robotic spinal surgery have been reported. In vivo trials and development of related surgical instruments for spinal surgery are required before its clinical application. We investigated the use of the da Vinci(R) Surgical System in spinal surgery at the craniovertebral junction in a human cadaver to demonstrate the efficacy and pitfalls of robotic surgery. METHODS: Dissection of pharyngeal wall to the exposure of C1 and odontoid process was performed with full robotic procedure. Although assistance of another surgeon was necessary for drilling and removal of odontoid process due to the lack of appropriate end-effectors, successful robotic procedures for dural sutures and exposing spinal cord proved its safety and dexterity. RESULTS: Robot-assisted odontoidectomy was successfully performed in a human cadaver using the da Vinci(R) Surgical System with few robotic arm collisions and minimal soft tissue damages. Da Vinci(R) Surgical System manifested more dexterous movement than human hands in the deep and narrow oral cavity. Furthermore, sutures with robotic procedure in the oral cavity demonstrated the advantage over conventional procedure. CONCLUSION: Presenting cadaveric study proved the probability of robot-assisted transoral approach. However, the development of robotic instruments specific to spinal surgery must first precede its clinical application.
Arm ; Cadaver ; Hand ; Humans ; Imidazoles ; Mandrillus ; Mouth ; Nitro Compounds ; Odontoid Process ; Robotics ; Spinal Cord ; Surgical Instruments ; Sutures

OBJECTIVE: Pituitary apoplexy is one of the most serious life-threatening complications of pituitary adenoma. The purpose of this study is to investigate the visual outcome after early transsphenoidal surgery for the patients with pituitary apoplexy. METHODS: We retrospectively reviewed the 31 patients with pituitary apoplexy who were admitted due to acute visual acuity or field impairment and treated by transsphenoidal surgery. Five patients were excluded because of the decreased conscious level. The visual acuity of each individual eye was evaluated by Snellen's chart. Visual fields were also checked using automated perimetry. To compare the visual outcome according to the surgical timing, we divided the patients into 2 groups. The first group, 21 of the patients have been undertaken transsphenoidal approach (TSA) within at least 48 hours after admission. The second group included 8 patients who have been undertaken TSA beyond 48 hours. All patients were monitored at least 12 months after surgery. RESULTS: Patients were 21 males and 8 females (M : F=2.6 : 1) with the mean age of 42.4 years. Among the enrolled 29 patients, 26 patients presented with decreased visual acuity and 23 patients revealed the defective visual field respectively. Postoperatively, improvement in the visual acuity was seen in 15 patients (83.3%) who underwent surgery within the first 48 hours of presentation, as compared to those in whom surgery was delayed beyond 48 hours (n=5; 62.5%) (p=0.014). Improvement in the visual field deficits was observed in 15 (88.2%) of patients who had been operated on within the first 48 hours of presentation, as compared to those in whom surgery was delayed beyond 48 hours (n=3; 50.0%) (p=0.037). CONCLUSION: This study suggests that rapid transsphenoidal surgery is effective to recover the visual impairment in patients with pituitary apoplexy. If there are associated abnormalities of visual acuity or visual fields in patients with hemorrhagic pituitary apoplexy, early neurosurgical intervention within 48 hours should be also required to recover visual impairment.
Eye ; Female ; Humans ; Male ; Pituitary Apoplexy ; Pituitary Neoplasms ; Retrospective Studies ; Vision Disorders ; Vision, Ocular ; Visual Acuity ; Visual Field Tests ; Visual Fields

PURPOSE: A multicenter study was performed to evaluate the clinical characteristics and the results of chemotherapy in patients with testicular tumor. MATERIALS AND METHODS: We retrospectively reviewed the records of 121 patients with testicular tumor treated at five university hospital between 1980 and 1997. We analyzed the clinical characteristics, additional treatments after orchiectomy and results of chemotherapy. RESULTS: Patients age ranged from 1 month to 74 years with a mean of 24 years. The common presenting symptoms were scrotal swelling in 63 patients, palpable mass in 50, and testicular pain in 12. The location of the tumor was on the right side in 62, left in 58, and both in 1 with lymphoma. The histologic type was germinal neoplasm in 101 patients, nongerminal neoplasm in 1, and other tumors in 19. Clinically, 76 patients(62.8%) were stage I, 16(13.2%) stage IIa, 12(9.9%) stage IIb, 3(2.5%) stage IIc, 9(7.4%) stage III and 5(4.1%) stage IV. After orchiectomy, 73 patients(60.3%) were underwent close observation, 30(24.8%) chemotherapy, 14(11.6%) radiation therapy, 3(2.5%) radiation plus chemotherapy and 1(0.8%) retroperitoneal lymph node dissection. Among the 33 chemotherapy patients, 12(36.4%) patients achieved a clinical complete remission(CR), 5(15.2%) partial remission(PR), 4(12.1%) minor response and stabilization, 5(15.2%) progression and 7(21.2%) patients were follow-up loss, and the overall clinical response rate was 65.4%. Among the 18 chemotherapy patients with nonseminomatous germ cell tumor(NSGCT), 9(50.0%) patients achieved a clinical CR, 4(22.2%) PR, 1(5.6%) minor response and stabilization, 2(11.1%) progression and 2(11.1%) patients were follow-up loss, and the overall clinical response rate was 81.3%. CONCLUSIONS: Our study group was relatively small and insufficient to evaluate the chemotherapeutic results, but NSGCT seems to have a better clinical response to chemotherapy.
Drug Therapy ; Follow-Up Studies ; Germ Cells ; Humans ; Lymph Node Excision ; Lymphoma ; Orchiectomy ; Retrospective Studies ; Testis*

OBJECTIVES: This study was carried out to investigate the cause, magnitude and transmission route of the cholera outbreak in 2001. METHODS: The study population were those persons who ingested foods at the restaurant, were confirmed as cholera patients, had symptoms of diarrhea and served as workers at the restaurant. A questionnaire survey and microbiological examinations on the microbes isolated from rectal swabs were conducted. Of the cases, 316 food histories were surveyed by an analysis of the restaurant menu. RESUJLTS: There were 139 confirmed cases of cholera reported in Korea in 2001. Of these, 104 were related to the restaurant. By region, Gyeongsangbuk-do had the highest incidence with 91 cases. Of these 91 cases, 74 had ingested foods at the restaurant, 2 were employees and 3 were secondary infection cases within the families. The results of the odds ratio analysis of the 316 persons having ingested foods at the restaurant were as follows: sandwiches 5.07 (95% CI, 1.85-14.59), soybean curd 2.45 (95% CI, 1.09-5.56), noodles 2.34 (95% CI, 1.24-4.42), steamed squid 2.01 (95% CI, 1.17-3.47) and vinegared rice 1.82 (95% CI, 1.08-3.09). It was certain the restaurant in question was the cause of the 2001 outbreak. CONCLUSIONS: We suspected that more than one restaurant employee contaminated foods served at the restaurant. In addition, eating raw fishes purchased at the Pohang Fisheries infected the employees of the restaurant. There is a possibility that these raw fishes were themselves contaminated by cholera bacilli in the sea.
Acetic Acid ; Cholera* ; Coinfection ; Decapodiformes ; Diarrhea ; Disease Outbreaks ; Eating ; Epidemiologic Studies ; Fisheries ; Fishes ; Gyeongsangbuk-do* ; Humans ; Incidence ; Korea* ; Odds Ratio ; Surveys and Questionnaires ; Restaurants ; Soybeans ; Steam

OBJECTIVES: This study was carried out to investigate the cause, magnitude and transmission route of the cholera outbreak in 2001. METHODS: The study population were those persons who ingested foods at the restaurant, were confirmed as cholera patients, had symptoms of diarrhea and served as workers at the restaurant. A questionnaire survey and microbiological examinations on the microbes isolated from rectal swabs were conducted. Of the cases, 316 food histories were surveyed by an analysis of the restaurant menu. RESUJLTS: There were 139 confirmed cases of cholera reported in Korea in 2001. Of these, 104 were related to the restaurant. By region, Gyeongsangbuk-do had the highest incidence with 91 cases. Of these 91 cases, 74 had ingested foods at the restaurant, 2 were employees and 3 were secondary infection cases within the families. The results of the odds ratio analysis of the 316 persons having ingested foods at the restaurant were as follows: sandwiches 5.07 (95% CI, 1.85-14.59), soybean curd 2.45 (95% CI, 1.09-5.56), noodles 2.34 (95% CI, 1.24-4.42), steamed squid 2.01 (95% CI, 1.17-3.47) and vinegared rice 1.82 (95% CI, 1.08-3.09). It was certain the restaurant in question was the cause of the 2001 outbreak. CONCLUSIONS: We suspected that more than one restaurant employee contaminated foods served at the restaurant. In addition, eating raw fishes purchased at the Pohang Fisheries infected the employees of the restaurant. There is a possibility that these raw fishes were themselves contaminated by cholera bacilli in the sea.
Acetic Acid ; Cholera* ; Coinfection ; Decapodiformes ; Diarrhea ; Disease Outbreaks ; Eating ; Epidemiologic Studies ; Fisheries ; Fishes ; Gyeongsangbuk-do* ; Humans ; Incidence ; Korea* ; Odds Ratio ; Surveys and Questionnaires ; Restaurants ; Soybeans ; Steam

BACKGROUND: Liquid-based cytology is currently known as an effective method, and cervical cytology has been shown to be especially effective from of malignancy detection. In our study, the cytological detection rates of the Thinprep (Liquid-based cytology) and conventional cytology (bronchial washing & brushing) for endobronchial lesions were compared. METHODS: Between July 2005 and September 2005, the data from 30 patients with respiration symptom, who had shown abnormal lesion on bronchoscopy, were collected. RESULTS: The bronchoscopic biopsy group was consisted of 30 cytodiagnosis specimens, 24 of which were confirmed to be malignant. The others were tuberculosis (4), bronchiectasis and bronchopulmonary fistula (1 each). Of the 24 malignant case, cancer or atypical cells were detected in 19, 17 and 12 of the Thinprep, brushing cytology and washing cytology cases, respectively. None one of the methods detected cancer cells in the non-malignant specimens. Washing cytology has shown sensitivity, specificity, and positive and negative predictive values of 50, 100, 100 and 33.3% respectively. Brushing cytology has shown sensitivity, specificity, and positive and negative predictive values of 70.8, 100, 100 and 46.2%, respectively. Thinprep has shown sensitivity, specificity, and positive and negative predictive values of 79.2, 100, 100 and 54%, respectively. CONCLUSIONS: Thinprep (liquid-based cytology) showed better sensitivity and negative predictive values for the evaluation of lung cancer than conventional cytology. However a large-scale study will be needed in the future.
Biopsy ; Bronchiectasis ; Bronchoscopy* ; Cytodiagnosis ; Fistula ; Humans ; Lung Neoplasms ; Respiration ; Tuberculosis

Purpose: To investigate urine microbiome differences among healthy women, women with recurrent uncomplicated cystitis (rUC), and those with sporadic/single uncomplicated cystitis (sUC) to challenge traditional beliefs about origins of these infections. Materials and Methods: Patients who underwent both conventional urine culture and next-generation sequencing (NGS) of urine were retrospectively reviewed. Symptom-free women with normal urinalysis results as a control group were also studied. Samples were collected via transurethral catheterization. Results: In the control group, urine microbiome was detected on NGS in 83.3%, with Lactobacillus and Prevotella being the most abundant genera. The sensitivity of urine NGS was significantly higher than that of conventional urine culture in both the sUC group (91.2% vs. 32.4%) and the rUC group (82.4% vs. 16.4%). In urine NGS results, Enterobacterales, Prevotella, and Escherichia/ Shigella were additionally found in the sUC group, while the recurrent urinary tract infection (rUTI)/rUC group exhibited the presence of Lactobacillus, Prevotella, Enterobacterales, Escherichia/Shigella, and Propionibacterium. Moreover, distinct patterns of urine NGS were observed based on menopausal status and ingestion of antibiotics or probiotics prior to NGS test sampling. Conclusions Urine microbiomes in control, sUC, and rUTI/rUC groups exhibited distinct characteristics. Notably, sUC and rUC might represent entirely separate pathological processes, given their distinct urine microbiomes. Consequently, the use of urine NGS might be essential to enhancing sensitivity compared to conventional urine culture in both sUC and rUTI/rUC groups.