BACKGROUND/AIMS: Pegylated interferon (peginterferon) and ribavirin is the current standard therapy for chronic hepatitis C. The aims of this study were to evaluate the efficacy of peginterferon and ribavirin and to identify predictors of a sustained virological response (SVR) to the retreatment of chronic hepatitis C in Korea. METHODS: The clinical records of 91 patients with chronic hepatitis C who were retreated with peginterferon and ribavirin were retrospectively analyzed. None of the patients had previously attained a SVR, and the patients were categorized according to their previous responses (nonresponder, relapser, or inadequate treatment) to conventional interferon/ribavirin. RESULTS: The overall SVR rate was 54.9%. Independent predictors of a SVR were genotypes 2 and 3, relapse, an adherence to peginterferon of over 80%, and an early virological response (EVR). For genotype 1 patients, an adherence to peginterferon of over 80% was an independent predictor of a SVR. CONCLUSIONS: Peginterferon and ribavirin therapy is effective for the retreatment of Korean chronic hepatitis C patients who have failed interferon/ribavirin, especially in patients with genotypes 2 and 3, relapse, an adherence to peginterferon over 80%, and an EVR. For genotype 1 patients, retreatment was effective in patients with an adherence to peginterferon over 80%.
Genotype ; Hepatitis C, Chronic ; Hepatitis, Chronic ; Humans ; Interferons ; Korea ; Recurrence ; Retreatment ; Retrospective Studies ; Ribavirin

BACKGROUND AND OBJECTIVES: It is known that both hypercholesterolemia and aging cause endothelial dysfunction, but which has the greater effect is less well known. A useful, non-invasive method for the evaluation of endothelial function is flow-mediated dilation (FMD) of the brachial artery (BA) employing high-resolution ultrasound. This study was performed to evaluate the effect of serum cholesterol and age on endothelial function in women utilising the above method. SUBJECTS AND METHODS: 21 of the 37 women in this study (mean age 46+/-15 years, range 24-72), had hypercholesterolemia (>or=200 mg/dL) and 16 had normocholesterolemia (<200 mg/dL). None of the subjects suffered classic risk factors associated with atherosclerosis other than hypercholesterolemia. The inner diameter of the right BA was measured at the peak of ECG R wave, from a longitudinal section taken by an 8.0-MHz B-mode linear-array ultrasonic transducer. Scans were taken at rest, during reactive hyperaemia (endothelium-dependent dilation;EDD), again at rest, and following sublingual nitroglycerin (endothelium-independent dilation;EID). RESULTS: From simple linear regression analyses, the serum cholesterol levels were found to be negatively related to the EDD of the BA at an age <50 years (r=-0.63, p<0.01), and also >or=50 years (r=-0.54, p<0.05). Serum cholesterol levels were not significantly related to the EID, regardless of age. In contrast, age was not related to EDD or EID in either normocholesterolemic or hypercholesterolemic subjects. CONCLUSION: These results suggest hypercholesterolemia has a greater effect than age in impairing the endothelial function in women.
Age Factors ; Aging ; Atherosclerosis ; Brachial Artery ; Cholesterol ; Electrocardiography ; Endothelium ; Female ; Humans ; Hypercholesterolemia* ; Linear Models ; Nitroglycerin ; Risk Factors ; Transducers ; Ultrasonics ; Ultrasonography ; Vasodilation

BACKGROUND: The differentiation of mesial temporal lobe epilepsy (MTLE) from neocortical temporal lobe epilepsy (NTLE) is important in surgical planning of temporal lobe epilepsy (TLE). We tried to find clinical semiology separating one from the other. METHODS: We reviewed 136 seizures of 28 patients who had epilepsy surgery and good clinical outcome (Engel class I or II). We compared the following clinical features between MTLE and NTLE; the history of febrile convulsion, staring, automatism, head version, contralateral dystonic (CLD) and tonic (CLT) posturing, secondarily generalized tonic-clonic seizure (SGTC) frequency, the duration of partial seizures (excluding SGTC part) and time to SGTC and the type of aura (abdominl aura, vertiginous aura, visual aura, gustatory aura, and psychic aura etc.). RESULTS: Eighteen men and ten women were included. Mean age was 29.1+ 8.8 years (11-45). Abdominal aura (p = 0.04), oroalimentary (p < 0.01) and gestural automatism (p < 0.01), CLD (p < 0.01), and CLT posturing (p < 0.01) were seen significantly more often in MTLE and the duration of partial seizure (excluding SGTC) (p < 0.01) was longer in MTLE than NTLE. In NTLE, head version (p < 0.01) and SGTC (p < 0.01) occurred more frequently and the evolution time to SGTC (p = 0.04) was shorter. Duration of automatism and staring and occurrence of unilateral blinking were not different between two groups. CONCLUSION: Abdominal aura, oroalimentary and gestural automatism, CLD and CLT posturing, longer partial seizure duration were more suggesting MTLE, while rapid generalization, frequent SGTC and head version were seen more often in NTLE.
Automatism ; Blinking ; Epilepsy ; Epilepsy, Temporal Lobe* ; Female ; Generalization (Psychology) ; Head ; Humans ; Male ; Seizures ; Seizures, Febrile ; Temporal Lobe*

BACKGROUND/AIMS: The aim of this study was to evaluate the seroconversion rate of a hepatitis A virus (HAV) vaccination in patients with hepatitis B virus (HBV)-related chronic liver disease (CLD). METHODS: Analyses were conducted using clinical records from 94 patients with chronic HBV infection who were seronegative for IgG anti-HAV antibodies between September 2008 and June 2009. Two doses of an HAV vaccine were administered 24 weeks apart. A third vaccine dose was administered only for patients seronegative for anti-HAV antibodies at week 48. RESULTS: The seroconversion rate of anti-HAV following the two-dose vaccination was 86.17%. The seroconversion rate of anti-HAV was not significantly different according to age or status of liver disease. The rate was higher in female than in male patients. A third HAV vaccine dose was administered to 13 patients seronegative for anti-HAV after the two-dose regimen, and 84.62% of these patients showed seroconversion at week 72. CONCLUSIONS: HAV vaccination is effective in most Korean patients with HBV-related CLD, and it might be necessary to evaluate three-dose vaccination approach for non-responders to the conventional regimen to maximize the success of an HAV vaccination program.
Antibodies ; Female ; Hepatitis ; Hepatitis A ; Hepatitis A Antibodies ; Hepatitis A virus ; Hepatitis B ; Hepatitis B virus ; Hepatitis B, Chronic ; Humans ; Immunoglobulin G ; Korea ; Liver ; Liver Diseases ; Male ; Vaccination

An inguinal hernia shows that the protruding viscus exits from the endoabdominal fascial sac through the internal inguinal ring. Because an inguinal hernia is usually associated with incarceration, obstruction and even strangulation, it must be quickly treated whenever observed. Although there are several predisposing factors of the development of inguinal hernia, relatively little is a case report of the inguinal hernia developed by the increased intra-abdominal pressure during general anesthesia. In this case, we report a patient who developed the unexpected recurrence of left inguinal hernia following lumbar spinal surgery in prone position by increasing intra-abdominal pressure. After manual reduction was performed promptly by general surgeon, the patient was discharged without any complication on the eighth postoperative day.
Anesthesia, General ; Causality ; Hernia, Inguinal* ; Humans ; Inguinal Canal ; Prone Position* ; Recurrence

Objective: This study aimed to compare the accuracy of robotic spine surgery and conventional pedicle screw fixation in lumbar degenerative disease. We evaluated clinical and radiological outcomes to demonstrate the noninferiority of robotic surgery. Methods: This study employed propensity score matching and included 3 groups: robot-assisted mini-open posterior lumbar interbody fusion (PLIF) (robotic surgery, RS), c-arm guided minimally invasive surgery transforaminal lumbar interbody fusion (C-arm guidance, CG), and freehand open PLIF (free of guidance, FG) (54 patients each). The mean follow-up period was 2.2 years. The preoperative spine condition was considered. Accuracy was evaluated using the Gertzbein-Robbins scale (GRS score) and Babu classification (Babu score). Radiological outcomes included adjacent segmental disease (ASD) and mechanical failure. Clinical outcomes were assessed based on the visual analogue scale, Oswestry Disability Index, 36-item Short Form health survey, and clinical ASD rate. Results: Accuracy was higher in the RS group (p < 0.01) than in other groups. The GRS score was lower in the CG group, whereas the Babu score was lower in the FG group compared with the RS group. No significant differences were observed in radiological and clinical outcomes among the 3 groups. Regression analysis identified preoperative facet degeneration, GRS and Babu scores as significant variables for radiological and clinical ASD. Mechanical failure was influenced by the GRS score and patients’ age. Conclusion This study showed the superior accuracy of robotic spine surgery compared with conventional techniques. When combined with minimally invasive surgery, robotic surgery is advantageous with reduced ligament and muscle damage associated with traditional open procedures.

Objective: This study aimed to compare the accuracy of robotic spine surgery and conventional pedicle screw fixation in lumbar degenerative disease. We evaluated clinical and radiological outcomes to demonstrate the noninferiority of robotic surgery. Methods: This study employed propensity score matching and included 3 groups: robot-assisted mini-open posterior lumbar interbody fusion (PLIF) (robotic surgery, RS), c-arm guided minimally invasive surgery transforaminal lumbar interbody fusion (C-arm guidance, CG), and freehand open PLIF (free of guidance, FG) (54 patients each). The mean follow-up period was 2.2 years. The preoperative spine condition was considered. Accuracy was evaluated using the Gertzbein-Robbins scale (GRS score) and Babu classification (Babu score). Radiological outcomes included adjacent segmental disease (ASD) and mechanical failure. Clinical outcomes were assessed based on the visual analogue scale, Oswestry Disability Index, 36-item Short Form health survey, and clinical ASD rate. Results: Accuracy was higher in the RS group (p < 0.01) than in other groups. The GRS score was lower in the CG group, whereas the Babu score was lower in the FG group compared with the RS group. No significant differences were observed in radiological and clinical outcomes among the 3 groups. Regression analysis identified preoperative facet degeneration, GRS and Babu scores as significant variables for radiological and clinical ASD. Mechanical failure was influenced by the GRS score and patients’ age. Conclusion This study showed the superior accuracy of robotic spine surgery compared with conventional techniques. When combined with minimally invasive surgery, robotic surgery is advantageous with reduced ligament and muscle damage associated with traditional open procedures.

Objective: This study aimed to compare the accuracy of robotic spine surgery and conventional pedicle screw fixation in lumbar degenerative disease. We evaluated clinical and radiological outcomes to demonstrate the noninferiority of robotic surgery. Methods: This study employed propensity score matching and included 3 groups: robot-assisted mini-open posterior lumbar interbody fusion (PLIF) (robotic surgery, RS), c-arm guided minimally invasive surgery transforaminal lumbar interbody fusion (C-arm guidance, CG), and freehand open PLIF (free of guidance, FG) (54 patients each). The mean follow-up period was 2.2 years. The preoperative spine condition was considered. Accuracy was evaluated using the Gertzbein-Robbins scale (GRS score) and Babu classification (Babu score). Radiological outcomes included adjacent segmental disease (ASD) and mechanical failure. Clinical outcomes were assessed based on the visual analogue scale, Oswestry Disability Index, 36-item Short Form health survey, and clinical ASD rate. Results: Accuracy was higher in the RS group (p < 0.01) than in other groups. The GRS score was lower in the CG group, whereas the Babu score was lower in the FG group compared with the RS group. No significant differences were observed in radiological and clinical outcomes among the 3 groups. Regression analysis identified preoperative facet degeneration, GRS and Babu scores as significant variables for radiological and clinical ASD. Mechanical failure was influenced by the GRS score and patients’ age. Conclusion This study showed the superior accuracy of robotic spine surgery compared with conventional techniques. When combined with minimally invasive surgery, robotic surgery is advantageous with reduced ligament and muscle damage associated with traditional open procedures.

Objective: This study aimed to compare the accuracy of robotic spine surgery and conventional pedicle screw fixation in lumbar degenerative disease. We evaluated clinical and radiological outcomes to demonstrate the noninferiority of robotic surgery. Methods: This study employed propensity score matching and included 3 groups: robot-assisted mini-open posterior lumbar interbody fusion (PLIF) (robotic surgery, RS), c-arm guided minimally invasive surgery transforaminal lumbar interbody fusion (C-arm guidance, CG), and freehand open PLIF (free of guidance, FG) (54 patients each). The mean follow-up period was 2.2 years. The preoperative spine condition was considered. Accuracy was evaluated using the Gertzbein-Robbins scale (GRS score) and Babu classification (Babu score). Radiological outcomes included adjacent segmental disease (ASD) and mechanical failure. Clinical outcomes were assessed based on the visual analogue scale, Oswestry Disability Index, 36-item Short Form health survey, and clinical ASD rate. Results: Accuracy was higher in the RS group (p < 0.01) than in other groups. The GRS score was lower in the CG group, whereas the Babu score was lower in the FG group compared with the RS group. No significant differences were observed in radiological and clinical outcomes among the 3 groups. Regression analysis identified preoperative facet degeneration, GRS and Babu scores as significant variables for radiological and clinical ASD. Mechanical failure was influenced by the GRS score and patients’ age. Conclusion This study showed the superior accuracy of robotic spine surgery compared with conventional techniques. When combined with minimally invasive surgery, robotic surgery is advantageous with reduced ligament and muscle damage associated with traditional open procedures.

Objective: This study aimed to compare the accuracy of robotic spine surgery and conventional pedicle screw fixation in lumbar degenerative disease. We evaluated clinical and radiological outcomes to demonstrate the noninferiority of robotic surgery. Methods: This study employed propensity score matching and included 3 groups: robot-assisted mini-open posterior lumbar interbody fusion (PLIF) (robotic surgery, RS), c-arm guided minimally invasive surgery transforaminal lumbar interbody fusion (C-arm guidance, CG), and freehand open PLIF (free of guidance, FG) (54 patients each). The mean follow-up period was 2.2 years. The preoperative spine condition was considered. Accuracy was evaluated using the Gertzbein-Robbins scale (GRS score) and Babu classification (Babu score). Radiological outcomes included adjacent segmental disease (ASD) and mechanical failure. Clinical outcomes were assessed based on the visual analogue scale, Oswestry Disability Index, 36-item Short Form health survey, and clinical ASD rate. Results: Accuracy was higher in the RS group (p < 0.01) than in other groups. The GRS score was lower in the CG group, whereas the Babu score was lower in the FG group compared with the RS group. No significant differences were observed in radiological and clinical outcomes among the 3 groups. Regression analysis identified preoperative facet degeneration, GRS and Babu scores as significant variables for radiological and clinical ASD. Mechanical failure was influenced by the GRS score and patients’ age. Conclusion This study showed the superior accuracy of robotic spine surgery compared with conventional techniques. When combined with minimally invasive surgery, robotic surgery is advantageous with reduced ligament and muscle damage associated with traditional open procedures.