BACKGROUND: Many recent results of clinical trials show that pre-operative concurrent chemoradiotherapy and surgical resection could increase the survival of N2 positive stage IIIA non-small cell lung cancer. This study was performed to assess the feasibility, toxicity, and affect rates of concurrent chemoradiotherapy and surgical resection in N2 positive stage IIIA non-small cell lung cancer. MATERIAL AND METHOD: Thirty-one patients who underwent preoperative concurrent chemoradiotherapy for N2 positive stage IIIA non-small-cell lung cancer from May 1997 to April 1999 were entered into the study. Mean age was 61 yrs (43-70 yrs), There were 24 men and 7 women. The confirmation of N2 disease were achieved through mediastinoscopic biopsy (24) and CT scans (7). Induction was achieved by two cycles of cisplatin and etoposide(EP) plus concurrent chest radiotherapy to 45 Gy. Resections were done at 3 weeks after the complection of preoperative concurrent chemoradiotherapy. Resections were performed in 23 patients, excluding 5 refusals and 3 distant metastasis. All patients were compled the thoracic radiotherapy except one who had distant metastasis. Twenty three patients were completed the planned 2 cycles of EP chemotherapy, and 8 patients were received only 1 cycle for severe side effects (6), refusal (1), and distant metastasis(1). There was one postoperative mortality, and the cause of death was ARDS. Three patients who had neutropenic fever and one patient who had radiation pneumonitis were required admission and treatment. Esophagitis was the most common acute side effect, but relatively well-tolerated in most patients. The complection rate of concurrent chemoradiotherapy was 74%, resection rate was 71%, pathologic complete remission rate was 13.6%, and pathologic down-staging rate was 68%. CONCLUSION: Morbidity related to each treatment was acceptable and many of the patients have benefited down staging of its disease. Further prospective, preferably randomized, clinical trials of larger scale may be warranted to confirm the actual benefit of preoperative concurrent chemoradiotherapy and surgical resection in N2-positive stage IIIA non-small cell lung cancer.
Biopsy ; Carcinoma, Non-Small-Cell Lung ; Cause of Death ; Chemoradiotherapy* ; Cisplatin ; Disulfiram ; Drug Therapy ; Esophagitis ; Female ; Fever ; Humans ; Lung Neoplasms ; Male ; Mortality ; Neoplasm Metastasis ; Radiation Pneumonitis ; Radiotherapy ; Thorax ; Tomography, X-Ray Computed

For the pharmacokinetic analysis of isoniazid transfer into CSF, steady-state isoniazid concentrations of plasma and CSF were measured in eleven tuberculous meningitis patients confirmed with findings of CSF and neuroimazing. Peak plasma levels (4.17-21.5 micrograms/mL) were achieved at 0.25 to 3 hours after multiple isoniazid dose (600 mg/day). Terminal half-life, total clearance (CI/F) and volume of distribution (Vd/F) were 1.42 +/- 0.41 hr, 0.47 +/- 0.22 L/kg/hr and 0.93 +/- 0.48 L/kg, respectively. Isoniazid concentrations in CSF collected intermittently were highest at 3 hr (Mean, 4.18 micrograms/mL) and were 0.54 +/- 0.21 micrograms/mL at 12 hrs after the last dose of isoniazid 10 mg/kg/day. CSF/plasma partitioning of isoniazid and equilibration rate were estimated using modified pharmacokinetic/pharmacodynamic model. Disposition rate constant from CSF to plasma and CSF/plasma partitioning ratio of isoniazid were estimated to be 0.39 h-1 and 1.17, respectively.
Administration, Oral ; Humans ; Isoniazid/*cerebrospinal fluid ; Metabolic Clearance Rate ; Models, Biological ; Tuberculosis, Meningeal/*cerebrospinal fluid

Purpose:The purpose of this study was to determine the incidence and potential predictors of weight gain in older children and teens treated with valproate (VPA) for epilepsy. Methods:Sixty-five subjects aged 8 to 17 years of age, who began VPA treatment between January 1, 2001, and December 31, 2004, and who had documented weight and height measurements at medication initiation and at least one follow-up visit were retrospectively identified. Exclusion criteria were follow-up <6 months, discontinuation of VPA within 6 months, and concurrent therapy with medication known to affect weight (such as topiramate, carbamazepin). Body mass index (BMI) was calculated at initiation and either discontinuation of VPA or last follow-up and stratified into four categories: group 1, underweight <5%; group 2, appropriate 5-85%; group 3, potentially overweight 85-95%; group 4, overweight >95%. Results:Twenty-eight subjects (77.8%) remained within their same category and eight (22.2%) moved up at least one category. Weight gain (increase in BMI difference) was observed in 72.2% of the 36 subjects treated with VPA. Three factors, neurocognitive status (P=0.017), seizure type (P=0.001) and duration of VPA treatment (P=0.035) were identified to be significant predictors of BMI difference. Conclusion:VPA induces weight gain in children and teens with epilepsy. These factors which are normal neurocognitive status, primary generalized type and duration of VPA treatment over the 12 months were predictors for an increase of weight gain. Therefore potential weight gain should be discussed with patients before the initiation of therapy and BMI should be monitored closely.
Adolescent ; Body Mass Index ; Child* ; Epilepsy* ; Follow-Up Studies ; Humans ; Incidence ; Overweight ; Retrospective Studies ; Seizures ; Thinness ; Valproic Acid ; Weight Gain*

BACKGROUND: Mitral and pulmonary venous(PV) flow velocity variables are being used for the indirect evaluation of left ventricular(LV) diastolic function. However, these flow velocities are influenced by age, loading conditions and other factors. This study was designed to evaluate usefulness of left atrial size and function in addition to the relation of mitral and PV flow velocity variables in the estimation of LV filling pressures. METHODS: Mitral and PV flow velocity variables. left artial size and function were assessed just before a cardiac catherization in 31 patients. According to the LV filling pressures, patients were divided into two subgroups and echocardiographic variables were compared. RESULTS: 1) LV end-diastolic pressure was related to the duration of reverse flow in the PV at atrial contraction(r=0.58) and difference in mitral and PV flow velocity duration at atrial contraction(r=0.54), and the similar findings were observed in other left ventricular filling pressures. 2) Left atrial size and volumes were greater in the subgroup of abnormal LV filling pressures(P < 0.05), but left atrial ejection fraction was not different between subgroups. CONCLUSION: In addition to variables of the mitral and PV flow velocities, left atrial size and volume may provide an additive value in the estimation of left ventricular filling pressures.
Echocardiography ; Echocardiography, Doppler ; Humans

No abstract available.
Intussusception* ; Peutz-Jeghers Syndrome*

PURPOSE: Post-lumbar puncture headache is common complaint. A study of post-diagnostic lumbar puncture headache in children is rare. Various factors that might influence the occurrence of post- diagnostic lumbar puncture headache in children exist. The purpose of this prospective study was to assess the frequency and risk factors for post-diagnostic lumbar puncture headache in children. METHODS: From March 2005 to February 2006, 44 patients with suspected meningitis were enrolled. Patients were received diagnostic lumbar puncture at the Chosun University Hospital, Gwangju, Korea. We evaluated age, sex, previous headache history, number of puncture attempts, volume of cerebrospinal fluid (CSF), pressure of CSF, cell count in CSF, final diagnosis, and the frequency and duration of headaches. RESULTS: Of the 44 patients (mean age 7.36+/-2.04, range 4-13 years), 16 patients (36.4%, male 13/33, 39.4%, female 3/11, 27.2%) had headache. The frequency of headaches was significantly higher in patients with previous headache history compare to those without previous headache history (P= 0.037). The mean of cell count of CSF was significantly higher in patients with post-lumbar puncture headache (P=0.012). The other factors did not influence the post-diagnostic lumbar puncture headache. CONCLUSION: Post-diagnostic lumbar puncture headache in children was more common than other studies. The factors that influence post-diagnostic lumbar puncture headache in children are previous headache history and cell count in CSF.
Cell Count ; Cerebrospinal Fluid ; Child* ; Diagnosis ; Female ; Gwangju ; Headache* ; Humans ; Korea ; Male ; Meningitis ; Post-Dural Puncture Headache ; Prospective Studies ; Punctures ; Risk Factors ; Spinal Puncture*

Captopril tablets of two different producers were tested for bioequivalence as well as therapeutic equivalence. The pharmacokinetics, the time course of plasma angiotensin-converting enzyme inhibition, and the changes of systolic and diastolic blood pressure after administration of drugs were studied. In a balanced, randomized two-way crossover design, two single doses of 50mg each of captopril were administered orally to twelve male volunteers. Peak blood levels of free captopril were observed about 0.85 hour after the dose, and practically free captopril could not be detected in blood within 8 hours. Peak free captopril levels of both compounds were almost identical(Capoten(R), 464.3ng/ml ; Capril(R), 504.6ng/ml). No statistically significant difference was identified between two compounds when area und the concentration time curve, peak level, time to peak were compared. Inhibition of plasma angiotensin-converting enzyme to blood free captopril concentration showed the hyperbolic concentration-response relationship with IC50 value of 7.4ng/ml. The area under the percent angiotensin-converting enzyme inhibition versus time curve were quite similar after administration of both drugs. The compounds were also found to be equivalent on the premise that no significant difference was detected when the time courses of systolic and diastolic blood pressure reduction were compared.
Biological Availability* ; Blood Pressure ; Captopril* ; Cross-Over Studies ; Humans ; Inhibitory Concentration 50 ; Male ; Pharmacokinetics ; Plasma* ; Tablets* ; Therapeutic Equivalency ; Volunteers

PURPOSE: There has been considerable controversy about whether acid reduction surgery is a definitive surgical treatment for perforated duodenal ulcer with numerous methods having been described. The controversy has increased with the development of the Proton Pump inhibitor and the discovery of Helicobacter Pylori (HP), because the recurrence and morbidity have been shown to decrease with simple closure followed by a good medical therapy against HP and the ulcer. This study is an evaluation of simple closure as an alternative treatment of perforated duodenal ulcer. METHODS: This retrospective study reviewed the records of 288 patients with surgically-treated ulcer perforation. After 62 patients were excluded, 128 patients treated with simple closure were compared with 98 patients treated with definitive surgery. In the simple closure group, we compared 50 patients treated with Proton Pump inhibitor and 78 patients treated with H2 blocker. Also, the influence of various factors such as age, delayed operation, size of ulcer perforation, operative methods, associated diseases, and complications were analyzed to evaluate recurrence, morbidity and mortality. RESULTS: After mean follow up for 53.7 months, 56.6% of patients treated with simple closure had fewer post operative complications and a lower recurrence rate compared with definitive surgery. The infection rate by HP of 81.6% in our study was similar to that of other studies. Some factors as age (>60), duration of symptoms (>24 hours), size of ulcer perforation (>10 mm), associated disease and operative time showed an influence on the mortality. CONCLUSION: Recent advances in the treatment of perforated peptic ulcer such as the development of the Proton Pump inhibitor and the discovery of HP have shown that after simple closure, an adequate medical treatment of ulcer can effectively decrease the recurrence rate, morbidity and mortality.
Duodenal Ulcer* ; Follow-Up Studies ; Helicobacter pylori ; Humans ; Mortality ; Operative Time ; Peptic Ulcer ; Proton Pumps ; Recurrence ; Retrospective Studies ; Ulcer

BACKGROUND: Bovine pericardium is one of the most widely used materials in bioprosthetic heart valves. Immunologic responses have been implicated as potential causes of limited durability of xenogenic valves. This study aimed to determine the effectiveness of decellularization and alpha-galactosidase (alpha-gal) to remove major xenoreactive antigens from xenogenic tissues. MATERIALS AND METHODS: Recombinant Bacteroides thetaiotaomicron (B. thetaiotaomicron) alpha-gal or decellularization, or both were used to remove alpha-gal from bovine pericardium. It was confirmed by alpha-gal-bovine serum albumin-based enzyme-linked immunosorbent assay (ELISA), high-performance anion exchange chromatography, flow cytometry, 3,3'-diaminobenzidine-staining, and lectin-based ELISA. The mechanical properties of bovine pericardium after decellularization or alpha-gal treatment were investigated by tests of tensile-strength, permeability, and compliance. Collagen fiber rearrangement was also evaluated by a 20,000x transmission electron microscope (TEM). RESULTS: Recombinant B. thetaiotaomicron alpha-gal could effectively remove alpha-gal from bovine pericardium B. thetaiotaomicron (0.1 U/mL, pH 7.2) while recombinant human alpha-gal removed it recombinant human alpha-gal (10 U/mL, pH 5.0). There was no difference in the mechanical properties of fresh and recombinant alpha-gal-treated bovine pericardium. Furthermore, the TEM findings demonstrated that recombinant alpha-gal made no difference in the arrangement of collagen fiber bundles with decellularization. CONCLUSION: Recombinant B. thetaiotaomicron alpha-gal effectively removed alpha-gal from bovine pericardium with a small amount under physiological conditions compared to human recombinant alpha-gal, which may alleviate the harmful xenoreactive immunologic responses of alpha-gal. Recombinant alpha-gal treatment had no adverse effects on the mechanical properties of bovine pericardium.
alpha-Galactosidase ; Bacteroides ; Bioprosthesis ; Chromatography ; Collagen ; Compliance ; Electrons ; Enzyme-Linked Immunosorbent Assay ; Epitopes ; Flow Cytometry ; Heart Valves ; Humans ; Hydrogen-Ion Concentration ; Pericardium ; Permeability ; Tissue Engineering

PURPOSE: This study was designed to compare Transilluminated Powered Phlebectomy (TIPP) with conventional surgical treatment (high ligation of the greater saphenous vein and above knee stripping with varicosectomy). METHODS: 428 cases of varicose veins, managed surgically at our hospital, were reviewed. A retrospective review of clinical records, between November 2000 an March 2003, was performed. The patients were divided into one of two groups: TIPP or a conventional operation. All the patients had at least a C2 CEAP disease. RESULTS: The demographics, hospital stays and operating times for the two groups were similar. However, a TIPP was associated with significantly fewer incisions (4.4+/-1.5 vs 8.2+/-3.9; P<0.001) and recurrence (n=14, 6% vs n=24, 12%; P=0.003). The incidence of a postoperative hematoma developing was more common with TIPP (n=20, 9% vs n=1, 0.5%; P=0.023). The problem of a hematoma formation in TIPP was solved by the insertion of a small closed suction drain. Skin perforation and wrinkling, and dermatosclerosis, were only complicated in the TIPP. The mean pain scores (out of 10) for the TIPP and conventional operation groups, at 2 and 7 days and 4 weeks, were 4.8, 1.4 and zero, and 4.8, 2.8 and zero, respectively. The cosmetic satisfaction score was higher in the TIPP group (8.7 vs 5.7; P<0.001). CONCLUSION: With respect to pain, cosmetic satisfaction and residual varicose, the outcomes in the TIPP group were significantly better than those in the conventional operation group.
Demography ; Hematoma ; Humans ; Incidence ; Knee ; Length of Stay ; Ligation ; Lower Extremity* ; Recurrence ; Retrospective Studies ; Saphenous Vein ; Scleroderma, Localized ; Skin ; Suction ; Varicose Veins*