One of the authors' names was included by mistake. The author list should be corrected as follows. Corrected Author List: Ki Won Ko, Soo Woong Kim, Du Geon Moon, Je Jong Kim, Duck Ki Yoon, Jae Young Park

Chorioangioma is the most common benign tumor of the placenta and associated with adverse perinatal outcome. The prevalence of chorioangioma of the placenta is about 1 percent. The most placental chorioangioma has no clinical significance. But the uncommon large (greater than 5 cm in diameter) chorioangioma may produce both maternal and fetal complications, such as polyhydramnios, preterm labor, fetal heart failure, hydrops fetalis, fetal growth restriction, fetal microangiopathic hemolytic anemia, fetal thrombocytopenia, toxemia of pregnancy, maternal thrombocytopenia, and maternal coagulopathy. The ultrasonography and Color Doppler are used for diagnosis of these lesions. If chorioangioma is suspected, Color Doppler study is informative to confirm the presence of the vascular channels. We report a case of multiple chorioangioma combined with oligohydramnios and discuss the noxious effects of this benign tumor on the mother and the fetus.
Anemia, Hemolytic ; Diagnosis ; Female ; Fetal Development ; Fetal Heart ; Fetus ; Hemangioma* ; Humans ; Hydrops Fetalis ; Mothers ; Obstetric Labor, Premature ; Oligohydramnios* ; Placenta ; Polyhydramnios ; Pre-Eclampsia ; Pregnancy ; Prevalence ; Thrombocytopenia ; Ultrasonography

PURPOSE: The 2010 guidelines for cardiopulmonary resuscitation recommend a ventilation rate of 8 to 10/min for patients with an advanced airway; however, hyperventilation occurs in most cases. This study was conducted as an attempt to determine the effects of feedback under audio tone guidance on performance of positive-pressure ventilation using a bag-valve device and to apply this technique in clinical practice in order to reduce hyperventilation. METHODS: A total of 36 seniors at our medical school participated in the study. After receiving instruction in performance of positive-pressure ventilation using a bag-valve device, they performed ventilation using a cardiac arrest model with an advanced airway (Test 1). After they took Test 1 without any feedback, they were randomly assigned to the feedback group (Group A) and the control group (Group B) and took Test 2. In Group A, a high-pitched sound was delivered every 7 s for guidance of ventilation. RESULTS: In Group A, ventilation rate approximated feedback rate, whereas, in Group B, it showed a significant decrease, from 8.3+/-2.0 to 7.7+/-2.0/min (p<0.01). The mean ventilation volume did not differ between pre- and post-feedback. The mean inspiration time showed a decrease in both groups. However, no significant difference in mean inspiration time was observed between the two groups. CONCLUSION: Audio tone guidance can control the ventilation rate accurately without any significant change in ventilation volume and inspiration time.
Cardiopulmonary Resuscitation ; Heart Arrest ; Humans ; Hyperventilation ; Positive-Pressure Respiration ; Schools, Medical ; Ventilation

No abstract available.
Choroid/pathology ; Humans ; Male ; Middle Aged ; Ophthalmia, Sympathetic/*etiology/pathology ; Retina/pathology ; Retinal Detachment/surgery ; Vitrectomy/*adverse effects

No abstract available.
Choroid/pathology ; Humans ; Male ; Middle Aged ; Ophthalmia, Sympathetic/*etiology/pathology ; Retina/pathology ; Retinal Detachment/surgery ; Vitrectomy/*adverse effects

OBJECTIVE: The aim of this study is to determine whether any association exists between preeclampsia and the maternal serum level of nitric oxide (NO) and platelet activating factor (PAF). METHODS: NO concentrations were measured using Stuehr's method and PAF concentrations were measured with [3H]PAF scintillation proximity assay (SPA) system (Amersham Pharmacia Biotech). Data were analyzed with SAS windows version 6.12, with significance established at p<0.05. RESULTS: The mean (+/-SD) maternal serum concentrations of NO were significantly higher in the group with severe preeclampsia (5.535+/-0.343 ug/ml) and mild preeclampsia (5.891+/-0.481 ug/ml) than in the normotensive pregnancy group (2.036+/-0.744 ug/ml) (p<0.05). The mean (+/-SD) maternal serum concentrations of PAF were significantly higher in the group with severe preeclampsia (928.9+/-32.3 ng/ml) and mild preeclampsia (789.1+/-63.9 ng/ml) than in the normotensive pregnancy group (435.8+/-59.5 ng/ml) (p<0.05). The mean birth weight was lower in the mild and severe preeclampsia groups than in the normotensive pregnancy group (p<0.05). CONCLUSION: Maternal serum NO and PAF concentrations were more increased in preeclampsia than normotensive pregnancy group. NO may therefore serve as compensatory mechanism for vasoconstriction of preeclampsia and PAF as a marker for the risk of preeclampsia.
Birth Weight ; Blood Platelets* ; Nitric Oxide* ; Platelet Activating Factor* ; Pre-Eclampsia* ; Pregnancy ; Vasoconstriction

PURPOSE: Sexual dysfunction has been reported to be frequent in patients with acute myocardial infarction. One aim was to correlates the erectile function with the severity of coronary arterial disease in the acute myocardial infarction patients. MATERIALS AND METHODS: A total of 57 men, median age 55.7 years (range 29 to 81), with acute myocardial infarction who had received coronary angiography were evaluated about their erectile function with 15-item questionnaire, the International Index of Erectile Function (IIEF). History of vascular risk factors such as smoking, diabetes mellitus, and hypercholesterolemia were obtained. We compared the erectile function score to the number of occluded coronary vessels or patients age. RESULTS: One coronary vessel was involves in 16 patients (28.1%), more than 2 coronary vessels were involved in 25 patients (43,9%) while 16 patients (28.1%) showed free of occlusion. Seventy-four percent of patients claimed abnormal erectile function, mild erectile dysfunction in 19 patients (33.3%), moderate in 9 patients (15.8%), severe in 14 patients (24.6%). Erectile function score decreased significantly according to increasing in the number of coronary vessels involved (p<0.05) and in patients age (p<0.01). CONCLUSIONS: There was a significant correlation between erectile function and the severity of the coronary arterial disease in acute myocardial infarction patients. The age of patients also had a negative effects on the erectile function.
Coronary Angiography ; Coronary Vessels ; Diabetes Mellitus ; Erectile Dysfunction ; Humans ; Hypercholesterolemia ; Male ; Myocardial Infarction* ; Surveys and Questionnaires ; Risk Factors ; Smoke ; Smoking

Atlantoaxial rotatory fixation (AARF) in adult is a rare disorder that occurs followed by a trauma. The patients were presented with painful torticollis and a typical 'cock robin' position of the head. The clinical diagnosis is generally difficult and often made in the late stage. In some cases, an irreducible or chronic fixation develops. We reported a case of AARF in adult patient which was treated by immobilization with conservative treatment. A 25-year-old female was presented with a posterior neck pain and limitation of motion of cervical spine after a traffic accident. She had no neurological deficit but suffered from severe defect on the scalp and multiple thoracic compression fractures. Plain radiographs demonstrated torticollis, lateral shift of odontoid process to one side and widening of one side of C1-C2 joint space. Immobilization with a Holter traction were performed and analgesics and muscle relaxants were given. Posterior neck pain and limitation of the cervical spine's motion were resolved. Plain cervical radiographs taken at one month after the injury showed that torticollis disappeared and the dens were in the midline position. The authors reported a case of type I post-traumatic AARF that was successfully treated by immobilization alone.
Accidents, Traffic ; Adult ; Analgesics ; Female ; Fractures, Compression ; Head ; Humans ; Immobilization ; Joints ; Muscles ; Neck Pain ; Odontoid Process ; Scalp ; Spine ; Torticollis ; Traction

OBJECTIVE: Subdural hygroma (SDG) is a complication occurring after head trauma that may occur secondary to decompressive craniectomy (DC). However, the mechanism underlying SDG formation is not fully understood. Also, the relationship between the operative technique of DC or the decompressive effect and the occurrence and pathophysiology of SDG has not been clarified. Purpose of this study was to investigate the risk factors of SDG after DC in our series. METHODS: From January 2004 to December 2008, DC was performed in 85 patients who suffered from traumatic brain injury. We retrospectively reviewed the clinical and radiological features. For comparative analysis, we divided the patients into 2 groups : one group with SDG after craniectomy (19 patients; 28.4% of the total sample), the other group without SDG (48 patients; 71.6%). The risk factors for developing SDG were then analyzed. RESULTS: The mean Glasgow Outcome Scale (GOS) scores at discharge of the groups with and without SDG were 2.8 and 3.1, respectively (p<0.0001). Analysis of radiological factors showed that a midline shift in excess of 5 mm on CT scans was present in 19 patients (100%) in the group with SDG and in 32 patients (66.7%) in the group without SDG (p<0.05). An accompanying subarachnoid hemorrhage (SAH) was seen in 17 patients (89.5%) in the group with SDG and in 29 patients (60.4%) in the group without SDG (p<0.05). Delayed hydrocephalus accompanied these findings in 10 patients (52.6%) in the group with SDG, versus 5 patients (10.4%) in the group without SDG (p<0.05). On CT, compression of basal cisterns was observed in 14 members (73.7%) in the group with SDG and in 18 members of the group without SDG (37.5%) (p<0.007). Furthermore, tearing of the arachnoid membrane, as observed on CT, was more common in all patients in the group with SDG (100%) than in the group without SDG (31 patients; 64.6%) (p<0.05). CONCLUSION: GOS showed statistically significant difference in the clinical risk factors for SDG between the group with SDG and the group without SDG. Analysis of radiological factors indicated that a midline shifting exceeding 5 mm, SAH, delayed hydrocephalus, compression of basal cisterns, and tearing of the arachnoid membrane were significantly more common in patients with SDG.
Arachnoid ; Brain Injuries ; Craniocerebral Trauma ; Decompressive Craniectomy ; Glasgow Outcome Scale ; Humans ; Hydrocephalus ; Membranes ; Retrospective Studies ; Risk Factors ; Subarachnoid Hemorrhage ; Subdural Effusion

PURPOSE: The present study aims to determine the common pathogens involved in the etiology of bacterial keratitis and to analyze not only the antibiotic susceptibility of bacterial isolates from patients with bacterial keratitis but also the propriety of initial treatment. METHODS: A retrospective study of 161 eyes in 161 patients with bacterial keratitis, who were diagnosed by cultures from 2000 to 2011, was performed. Causative bacteria and antibiotic susceptibility were evaluated in consecutive 6-year periods. RESULTS: The most common bacteria was the pseudomonas species in the 2 time periods tested and cefazolin with tobramycin was the most commonly used antibiotic (125 cases, 77.6%) for initial treatment of bacterial keratitis. In vitro testing showed gram-negative susceptibility to tobramycin and ciprofloxacin was over 70%, gram-positive susceptibility to cephalothin and vancomycin was 100% and there was no significant difference between the 2 time periods tested. Eight cases had resistance to the initial treatment, but only 1 case showed treatment failure. CONCLUSIONS: Antibiotics used for initial treatment of bacterial keratitis were able to obtain a proper effect but several cases showed bacterial resistance to antibiotics. Thus, continued testing is essential to monitor for antibiotic resistance.
Anti-Bacterial Agents* ; Bacteria ; Cefazolin ; Cephalothin ; Ciprofloxacin ; Drug Resistance, Microbial ; Humans ; Keratitis* ; Pseudomonas ; Retrospective Studies ; Tobramycin ; Treatment Failure ; Vancomycin