Local anesthesia for arthroscopic procedure of the knee is an increasinglv popular technique that avoids the use of general anesthesia and the associated risks of respiratory depression, aspiration, and postoperative sedation. Many authors, for example McGinty etc., Martin, Yoshiya etc., advocated local anesthesia as safe and efficient method for arthroscopic procedures of the knee. We performed arthoroscopy of the knee under local anesthesia on 150 patients for diagnostic and operative purposes between January l993 and December l996. The technique of local anesthesia that we used was that 20cc of 0.5%; bupivacaine with I:200,000 epinephrine was injected into superolateral portal of the knee joint and additional 10-20cc ot 1% lidocaine into the arthroscopic portals. Pnevmatic tourniquet wa, not applied in all cases. We analysed the 150 cases and the results were as follows; The diagnostic arthroscopy was performed in 50 cases and the operative arthroscopy was in 100 cases. The duration ot local anethesia was from 4 hours to 12 hours, with an average of 6 hours. In 35 cases arthroscopy was performed as outpatient procedure and average hospital stay excluding other problem was 5 days. No complication related to systemic toxicity by local anesthetics was observed. Conclusively arthroscopy of the knee under local anesthesia is safe and effective procedure to avoid the risks of general anesthesia but patients selection is very important.
Anesthesia, General ; Anesthesia, Local* ; Anesthetics, Local ; Arthroscopy* ; Bupivacaine ; Epinephrine ; Humans ; Knee Joint ; Knee* ; Length of Stay ; Lidocaine ; Outpatients ; Respiratory Insufficiency ; Tourniquets

PURPOSE: The purpose of our study is to evaluate the diagnostic significance of clinical findings, WBC count, ESR, CRP, simple X-ray, ultrasonography and bone sanning in neonates. MATERIALS AND METHODS: From January 1995 to May 1998, we have experienced 14 cases of pyogenic osteomyelitis and pyogenic arthritis in neonates. The mean age of patients was 16.7 days and the involved sites were 6 cases of pyogenic arhtritis of hip, 5 cases of pyogenic arthritis of hip with proximal femur osteomyelitis, 2 cases of pyogenic arthritis of shoulder with proximal humerus osteomyelitis and 1 case of proximal tibia osteomyelitis. RESULTS: The most frequent clinical signs were local swelling and pseudoparalysis of involved extremity. Laboratory findings showed that elevated ESR was in 11/14 (79%), positive CRP in 6/8 (75%), leukocytosis in 6/14 cases (43%). Abnomal findings in simple X-ray was in 7/13 (54%), positive bone scanning findings in 3/8 (37.5%), positive ultrasonographic findings in 11/11 cases (100%). CONCLUSIONS: ITherefore we concluded that careful physical examination and ultrasonography were important for early diagnosis of bone or joint infection in neonates
Arthritis ; Diagnosis* ; Early Diagnosis ; Extremities ; Femur ; Hip ; Humans ; Humerus ; Infant, Newborn* ; Joints* ; Leukocytosis ; Osteomyelitis ; Physical Examination ; Shoulder ; Tibia ; Ultrasonography

BACKGROUND: Patients treated with regional anesthesia often require concomitant medication for comfort and sedation. Propofol is widely used for this purpose, but studies upon awareness or post-operative retrograde amnesia are limited. So we designed this study to investigate the frequency of retrograde amnesia on various effect-site concentrations of propofol by using target controlled infusion (TCI). METHODS: Ninety patients (ASA I, II) undergoing orthopedic or urogenital surgery with spinal, epidural or axillary block were randomly assigned to one of six groups. Target concentrations of propofol in the six groups were respectively 1.0, 1.2, 1.4, 1.6, 1.8, or 2.0 microgram/ml. When the effect site concentration reached the target concentration in each group, we waited for 5 minutes and then lowered the target concentration to 0.5 microgram/ml. When the effect site concentration returned to 0.5 microgram/ml, we again waited for 5 minutes and then showed the patient number and picture cards and asked the patient to memorize them. Subsequently the target concentration was returned to the original level. In the post anesthesia care unit, retrograde amnesia was checked 2 hours after eye opening and then rechecked 24 hours later. RESULTS: The percentages of retrograde amnesia checked 2 hours after eye opening were 27%, 27%, 40%, 40%, 40%, and 53% (number card) and 27%, 27%, 40%, 47%, 53%, and 63% (picture card) for propofol dose of 1.0, 1.2, 1.4, 1.6, 1.8, and 2.0 microgram/ml. A significant correlation was found between the propofol concentration and the percentage of retrograde amnesia for picture but not for the numbered cards. The percentages of retrograde amnesia observed at 24 hours after eye opening were similar to the 2 hour results. CONCLUSIONS: When propofol is used for sedation at 1.0 2.0 microgram/ml, retrograde amnesia increases in proportion to the effect site concentration. Many patients can recall intra-operative awareness, and thus we cannot be assured of effective retrograde amnesia. Therefore although a patient is under deep sedation, careful consideration of awareness and recall is needed.
Amnesia, Retrograde* ; Anesthesia ; Anesthesia, Conduction ; Deep Sedation ; Humans ; Orthopedics ; Propofol*

The incidence of heterotopic gastric mucosa located in the submucosa in resected stomach specimens has been reported to be 3.0 to 20.1%. Heterotopic gastric mucosa is thought to be a benign disease, which rarely becomes malignant. Heterotopic gastric mucosa exists in the gastric submucosa, and gastric cancer rarely occurs in heterotopic gastric mucosa. Since tumors are located in the normal submucosa, they appear as submucosal tumors during endoscopy, and are diagnosed through endoscopic biopsies with some difficulty. For such reasons, heterotopic gastric mucosa is mistaken as gastric submucosal tumor. Recently, two cases of early gastric cancer arising from heterotopic gastric mucosa in the gastric submucosa were treated. Both cases were diagnosed as submucosal tumors based on upper gastrointestinal endoscopy, endoscopic ultrasound, and computed tomography findings, and in both cases, laparoscopic wedge resections were performed, the surgical findings of which also suggested submucosal tumors. However, pathologic assessment of the surgical specimens led to the diagnosis of well-differentiated intramucosal adenocarcinoma arising from heterotopic gastric mucosa in the gastric submucosa.
Adenocarcinoma ; Biopsy ; Endoscopy ; Endoscopy, Gastrointestinal ; Gastric Mucosa ; Incidence ; Stomach ; Stomach Neoplasms

PURPOSE: To investigate the clinical usefulness of a follow-up examination using serum squamous cell carcinoma antigen (SCC) for the early detection of recurrence in patients treated for cervical squamous cell carcinoma. MATERIALS AND METHODS: 20 patients who were treated for recurrent cervical squamous cell carcinoma between 1997 and 1998, who had experienced a complete remission after radiotherapy and who underwent an SCC test around the time when recurrence was detected, were included in this study. The levels of SCC were measured from the serum of the patients by immunoassay and values less than 2 ng/mL were regarded as normal. The sensitivity of the SCC test for use in the detection of recurrence, the association between the SCC values and the recurrence patterns and the tumor size and stage, and the temporal relation between the SCC increment and recurrence detection were evaluated. RESULTS: The SCC values were above normal in 17 out of 20 patients, so the sensitivity of the SCC test for the detection of recurrence was 85%, and the mean and median of the SCC values were 15.2 and 9.5 ng/mL, respectively. No differences were observed in the SCC values according to the recurrence sites. For 11 patients, the SCC values were measured over a period of 6 months before recurrence was detected, and the mean and median values were 13.6 and 3.6 ng/mL, respectively. The SCC values of 7 patients were higher than the normal range, and the SCC values of the other 4 patients were normal but 3 among them were above 1.5 ng/mL. At the time of diagnosis, the SCC valuess were measured for 16 of the 20 recurrent patients, and the SCC values of the patients with a bulky tumor (> or =4 cm) or who were in stage IIb or III were higher than those of the patients with a non-bulky tumor or who were in stage Ib or IIa. CONCLUSION: The SCC test is thought to be useful for the early detection of recurrence during the follow up period in patients treated for cervical squamous cell carcinoma. When an effective salvage treatment is developed in the future, the benefit of this follow-up SCC test will be increased.
Carcinoma, Squamous Cell* ; Cervix Uteri* ; Diagnosis ; Female ; Follow-Up Studies* ; Humans ; Immunoassay ; Radiotherapy ; Recurrence ; Reference Values ; Uterine Cervical Neoplasms

No abstract available.
Humans* ; Multiplex Polymerase Chain Reaction* ; Papilloma*

PURPOSE: The purpose of our study was to determine the effectiveness of primary repair of arcuate ligament complex in posterolateral rotary instability of knee. MATERIALS AND METHODS: We reviewed the clinical records and operative notes of 9 patients who were treated by primary repair for the acute posterolateral rotary instability and followed more than 1 year. All the 9 knees had a positive external rotation recurvatum test and a positive posterolateral drawer test, One or more components of the arcuate ligament complex were injured in all cases and associated injuries were posterior cruciate ligament rupture in 6, lateral collateral ligament in 5, anterior cruciate ligament partial rupture in 2, biceps femoris rupture in 2, meniscus tear in 3, iliotibial band rupture in 1, ipsilateral femur fracture in 1 and peroneal nerve palsy in 1. RESULTS: By objective rating index, the results were classified as good (4 patients), fair (4 patients) and poor (1 patient). By functionally, the results were classified as good (6 patients), fair (3 patients). CONCLUSIONS: Consequently, we believe that primary repair of arcuate ligament complex in acute stage can result in objectively and functionally acceptable knee function.
Anterior Cruciate Ligament ; Femur ; Humans ; Knee* ; Lateral Ligament, Ankle ; Ligaments ; Paralysis ; Peroneal Nerve ; Posterior Cruciate Ligament ; Rupture

BACKGROUND/AIMS: To investigate the use of measurements of liver stiffness (LS) by two-dimensional real-time shear wave elastography (SWE) for predicting the development of hepatocellular carcinoma (HCC) in patients with chronic hepatitis B (CHB). METHODS: We retrospectively collected data on 291 enrolled patients with CHB whose LS had been measured using SWE. RESULTS: The mean age of the patients was 46.8 years; males predominated (67%), and 40 of the patients (14%) had clinical cirrhosis. Among the patients, 165 (56.7%) received antiviral treatment. The median LS value was 7.4 kPa, and the median follow-up period was 35.8 months (range, 3.0 to 52.8 months). During follow-up, HCC developed in 13 patients (4.5%), and the cumulative incidence rates of HCC at 1, 2, and 4 years were 1.1%, 3.6%, and 8.4%, respectively. Based on a multivariate analysis, older age (≥50 years) and higher LS value (≥10 kPa) were independently associated with the risk of developing HCC (hazard ratio [HR], 4.53, p=0.023; and HR, 4.08, p=0.022). The cumulative incidence rate of HCC was significantly higher in patients with higher LS values (≥10 kPa) than in those with lower LS values ( < 10 kPa) (p=0.001). CONCLUSIONS: Increased LS measured by SWE at any time point regardless of antiviral treatment is associated with an increased risk of HCC in patients with CHB.
Carcinoma, Hepatocellular* ; Elasticity Imaging Techniques* ; Fibrosis ; Follow-Up Studies ; Hepatitis B ; Hepatitis B, Chronic* ; Hepatitis, Chronic* ; Humans ; Incidence ; Liver ; Male ; Multivariate Analysis ; Retrospective Studies

BACKGROUND: A short period of ischemia and reperfusion, called ischemic preconditioning, protects various tissues against subsequent sustained ischemic insult. Apoptosis of hepatocytes and sinusoidal endothelial cells are a critical mechanisms of injury in the ischemic liver. Because nuclear factor-B (NF-B) has a significant role in the cell survival, we hypothesized that ischemic preconditioning protects by inhibition of apoptosis through the expression of NF-B, induced by interleukin-1 (IL-1), which is known for enhancement of its transcription and activation. METHODS: We induced ischemia and reperfusion on rat liver, and performed in situ terminal deoxyribonucleotidyl transferase-mediated dUTP nick end labelling assay and polymerase chain reaction for IL-1 mRNA and NF-B mRNA. RESULTS: Apoptosis of hepatocytes and sinusoidal endothelial cells, assessed by in situ TUNEL assay, was significantly reduced with preconditioning. The expression of IL-1 mRNA and NF-B mRNA are seen on discrete monoclonal bands around 344 and 356 base pairs, in comparison with normal rat liver, but, there was no significant difference between the ischemia-reperfusion group and the preconditioning group. CONCLUSIONS: We suggest that ischemic preconditioning confers dramatic protection against prolonged ischemia via inhibition of apotosis through the expression of IL-1 inducing NF-B and its activation. However, we need further study in the activity of NF-B, such as nucleotide shift assay, because the activity of NF-B is regulated by binding of the inhibitory protein, IB.
Animals ; Apoptosis ; Base Pairing ; Cell Survival ; Endothelial Cells ; Hepatocytes ; In Situ Nick-End Labeling ; Interleukin-1* ; Ischemia ; Ischemic Preconditioning* ; Liver* ; Polymerase Chain Reaction ; Rats* ; Reperfusion ; RNA, Messenger

OBJECTIVE: To evaluate the analgesic effect of intrathecal gabapentin therapy on secondary hyperalgesia in a rat model of persistent muscle pain. METHODS: Intrathecal catheters were implanted into rats. Mechanical secondary hyperalgesia was induced by repeated intramuscular injections of acidic solution into the gastrocnemius muscle. Gabapentin was administrated intrathecally. Rats were allocated to control and experimental (gabapentin 30, 100, 300, and 1,000 microg) group. After gabapentin administration, mechanical withdrawal threshold was measured every 15 minutes and the motor function was measured 30 minutes later. RESULTS: Mechanical hyperalgesia was evoked after the second acidic buffer injection. There was a significant improvement on the mechanical threshold after administration of 100, 300, and 1,000 microg gabapentin compared to pre-injection and the control group. The analgesic effect continued for 105, 135, and 210 minutes, respectively. To discern side effects, motor function was measured. Motor function was preserved in both groups after gabapentin administration, except for rats who received 1,000 microg gabapentin. CONCLUSION: Intrathecal gabapentin administration produces dose-dependent improvements in mechanical hyperalgesia in a persistent muscle pain rat model. This implicates the central nervous system as having a strong influence on the development of persistent mechanical hyperalgesia. These results are helpful in understanding the pathophysiology of secondary hyperalgesia and in the treatment of patients with chronic muscle pain.
Animals ; Catheters ; Central Nervous System ; Humans ; Hyperalgesia ; Injections, Intramuscular ; Models, Animal* ; Muscle, Skeletal ; Myalgia* ; Rats