1.Isolated Aneurysm of the Left Common Iliac Artery that was Secondary to Medial Degeneration.
Seung Jae BYUN ; Ki Jung YUN ; Byung Jun SO
Journal of the Korean Society for Vascular Surgery 2006;22(1):40-43
Isolated aneurysm of the common iliac artery that is secondary to medial degeneration (MD) is a very rare clinical entity. MD is an important histological abnormality that is commonly seen in the annuloaortic ectasia with Marfan syndrome. This abnormality is also observed in congenital aortic disease, atherosclerosis, and aging. This aortic disease develops as the consequences of disruption of the medial elastic layers in association with loss of vascular smooth muscle cells and the accumulation of proteoglycans. An iliac aneurysm greater than 3 cm in diameter should be treated. The treatment options include open surgical replacement with prosthetic graft or endovascular stent grafting. We experienced one case of the isolated common iliac artery aneurysm in a 60 year-old female patient. Her chief complaint was a pulsatile painful mass in the left lower quadrant of the abdomen that she had suffered with for 5 days. She was treated by performing aorto-left external iliac artery bypass with a Dacron graft (10 mm in diameter). The result was excellent. We report here on a case of a isolated common iliac artery aneurysm that was caused by MD, and we include a review of the relevant literature.
Abdomen
;
Aging
;
Aneurysm*
;
Aortic Diseases
;
Atherosclerosis
;
Blood Vessel Prosthesis
;
Dilatation, Pathologic
;
Female
;
Humans
;
Iliac Aneurysm
;
Iliac Artery*
;
Marfan Syndrome
;
Middle Aged
;
Muscle, Smooth, Vascular
;
Polyethylene Terephthalates
;
Proteoglycans
;
Transplants
2.Carcinoma of Ampulla of Vater: Emphasis on the CT Technique.
Hyun Seouk JUNG ; Jae Young BYUN ; So Lyung JUNG ; Euy Neyng KIM ; Jae Moon LEE ; Kyung Sub SHINN
Journal of the Korean Radiological Society 1997;36(6):1007-1011
PURPOSE: To demonstrate a CT technique by which carcinoma of the ampulla of Vater can be more accurately diagnosed, and to describe the radiologic findings this carcinoma. MATERIALS AND METHODS: We retrospectively reviewed CT findings in 26 patients with pathologically proven carcinoma of the ampulla of Vater. One additional cup of diluted oral contrast medium was ingested immediately before the scan. We analysed the difference in detection rate of the mass in the duodenal lumen with and without duodenal luminal opacification of gastrografin.We also evaluated the size and shape of the mass, dilatation of CBD and the pancreatic duct, and lymph node metastasis. In addition, we analyzed multimodality imaging findings ultrasonogram (US) : 13; hypotonic duodenogram (HTDG): 7; ERCP : 17) of carcinoma of the ampulla of Vater. RESULTS: Nodular soft tissue masses protruding into the duodenal lumen were identified in 21 of 26 cases. In 95% of cases (21/22) with favorable opacification and distension of the duodenum, masses were clearly identified on CT imaging. However, in four caseswith poor opacification and distension of the duodenum, masses could not be observed(P=0.000). The mass on CT scanshowed a well-defined margin, round or lobulated contour, and contrast enhancement similar to that of thepancreas. CBD dilatation was identified in 20 cases and pancreatic duct dilatation in 12. On US, protruding massesin the distal CBD were observed in nine of 13 cases(60%) and on HTDG, in six of seven cases(86%). as well-definedfilling defects. Conclusion : Since the accuracy of CT diagnosis of intestinal lesions is directly proportional tothe degree of intestinal distension and opacification with oral contrast, we believe that adequate ct techniquefor distending and opacitying the duodeual lumen are necessary for early diagnosis of carcinoma of the ampulla ofVater.
Ampulla of Vater*
;
Cholangiopancreatography, Endoscopic Retrograde
;
Diagnosis
;
Dilatation
;
Duodenum
;
Early Diagnosis
;
Humans
;
Lymph Nodes
;
Neoplasm Metastasis
;
Pancreatic Ducts
;
Phenobarbital
;
Retrospective Studies
;
Ultrasonography
3.Differentiation of benign and malignant thyroid nodules based on the proportion of sponge-like areas on ultrasonography: imaging-pathologic correlation.
Jee Young KIM ; So Lyung JUNG ; Mee Kyung KIM ; Tae Jung KIM ; Jae Young BYUN
Ultrasonography 2015;34(4):304-311
PURPOSE: The purpose of this study was to determine whether it is possible to differentiate benign from malignant thyroid nodules according to the proportion of sponge-like appearance within the nodules. METHODS: A total of 201 thyroid nodules containing sponge-like appearance from 195 patients (157 women and 38 men) were included this study. Each thyroid nodule was classified into one of three grades by real-time ultrasonography (US) based on the areas with a sponge-like appearance within nodule: grade I had sponge-like areas occupying <50%; grade II, between 50% and 75%; and grade III, >75%. We evaluated whether a correlation existed between these grades and cytopathologic diagnoses. RESULTS: Of the 201 nodules, 196 were benign and five were malignant, and according to the US classification, 101 nodules were grade I, 45 were grade II, and 55 were grade III. Of the five malignant nodules, four were grade I, and one was grade II. No statistically significant difference was found in the rate of malignancy between grade III and grades I and II, due to insufficient statistical power. A sponge-like appearance was correlated with follicles filled with colloid and cholesterol granules in benign nodules and with papillary fronds around the dilated cystic spaces in malignant nodules. CONCLUSION: No malignancies were found in thyroid nodules with >75% sponge-like appearance. Due to the overall low incidence of malignancy and the limited number of patients, a statistically significant difference could not be found in the prevalence of malignancy depending on the proportion of sponge-like areas within the nodule.
Cholesterol
;
Classification
;
Colloids
;
Diagnosis
;
Diagnosis, Differential
;
Female
;
Humans
;
Incidence
;
Prevalence
;
Thyroid Gland*
;
Thyroid Nodule*
;
Ultrasonography*
4.A Case of Charles Bonnet Syndrome After Enucleation.
Yong Soo BYUN ; So Jung SHIN ; Suk Woo YANG
Journal of the Korean Ophthalmological Society 2008;49(4):669-672
PURPOSE: To report a case of Charles Bonnet syndrome in a patient who developed phantom vision of an enucleated eye. The patient had lost her vision because of a chemical burn 10 years previously. CASE SUMMARY: A 37-year-old woman received enucleation of one eye because ocular pain and phthisis had developed due to a chemical burn that occurred 10 years previously. On the first postoperative day, she complained of phantom vision in the enucleated eye. The image she described was like sparkling bubbles. She had recognized the image was not real, and no psychological problems were found during pre- and postoperative periods. Her wound state was good, so she is currently wearing an artificial eye, though her phantom vision intermittently returns. She has adapted to her phantom vision such that she now rarely feels discomfort. RESULTS: Charles Bonnet syndrome is a visual hallucination that occurs among the blind or those who are visually impaired. Besides ophthalmologic care, sociological and psychological care should be considered.
Adult
;
Burns, Chemical
;
Eye
;
Eye, Artificial
;
Female
;
Hallucinations
;
Humans
;
Postoperative Period
;
Vision, Ocular
5.Disorder of Sex Development with 5alpha-reductase Deficiency in Identical Twins.
Sang Taek LEE ; Kihye SUNG ; Jung Lim BYUN ; Yeo Min YUN ; So Chung CHUNG
Journal of Korean Society of Pediatric Endocrinology 2008;13(2):184-187
Children with abnormal sex development may present with ambiguous genitalia in the newborn period or lacking of secondary sexual characteristics in puberty. Clinicians should make a prompt and accurate diagnosis and counsel parents on therapeutic options to minimize or avoid medical and psychological complications. 5alpha-reductase deficiency is a rare autosomal recessive disorder of sex development caused by a mutation of the 5alpha-reductase type 2 gene. As a result, there is an abnormality in conversion of testosterone (T) to dihydrotestosterone (DHT) and children with 5alpha-reductase deficiency are born with ambiguous genitalia. Here, we report identical twins who presented with ambiguous genitalia with a 46,XY karyotype and were diagnosed as 5alpha-reductase deficiency.
Child
;
Dihydrotestosterone
;
Disorders of Sex Development
;
Humans
;
Infant, Newborn
;
Karyotype
;
Parents
;
Puberty
;
Sexual Development
;
Testosterone
;
Twins, Monozygotic
6.Medical Litigation and the Care of Newborns.
Dong Yup LEE ; Jung Hee BYUN ; Kook In PARK ; So Yoon KIM ; Mi Jin LEE
Neonatal Medicine 2015;22(1):1-7
PURPOSE: Recently, legal disputes resulting from medical accidents have been increasing annually. The purpose of this study is to determine the causes and characteristics of medical disputes brought as a result of neonatal accidents and to suggest measures to reduce the number of medical malpractice suits. METHODS: Twenty-eight medical malpractice lawsuits brought as a result of neonatal accidents between 2005 and 2009 were analyzed. RESULTS: The average time taken to resolve these lawsuits was approximately 4.4 years. The average gestational age and birth weight of the newborns in these cases were 35.3+/-4.2 weeks and 2,668+/-931 g, respectively. Twelve cases (42.9%) were concluded partially in favor of the plaintiffs, while in 10 (35.7%) cases the plaintiffs lost. In 11 of the 12 cases that were concluded partially in favor of the plaintiffs, the defendants were found guilty of violating their duty of care. Medical accidents resulted in death in 10 cases and physical disability in 18 cases, and cerebral palsy and blindness were the most common physical disabilities. The average compensation amount ordered as damages was KRW 161,389,291+/-12,636,454. CONCLUSION: In medical litigation, the standard of judgment is whether appropriate medical practices were performed based on the patient's symptoms. Thus, to comply with the medical treatment rules is paramount in securing patients' safety and protecting doctors themselves. Individual effort is necessary, but not sufficient to prevent medical accidents; multilateral, systemic reform is also required if the number of neonatal medical accidents is to be reduced.
Birth Weight
;
Blindness
;
Cerebral Palsy
;
Compensation and Redress
;
Dissent and Disputes
;
Gestational Age
;
Humans
;
Infant, Newborn*
;
Judgment
;
Jurisprudence*
;
Malpractice
;
Patient Safety
7.The Comparison of Suceess Rates of Lightwand Facilitated Tracheal Intubation in Different Head Positions (Neutral Position versus Sniffing Position).
So Jung BYUN ; Ji Hyang LEE ; Eun Ju KIM ; Sang Gon LEE ; Jong Seok BAN ; Byung Woo MIN
Korean Journal of Anesthesiology 2006;51(3):308-311
BACKGROUND: It has been known that a patient head in sniffing position for lightwand facilitated tracheal intubation is not an anatomically appropriate method. However, there is no evidence nor study whether it is true or not. In this study, we compared success rates of lightwand facilitated tracheal intubation in neutral position versus sniffing position. METHODS: With informed consent, sixty adult patients of ASA physical status I or II were randomly allocated into two groups: neutral position (N) or sniffing position (S) group. A lightwand and tube were bent at approximately a 90degrees degree angle for N group and a 60 degree angle for S group on the basis of mouth axis and pharyngeal axis. The time to intubation, success rates of 1st trial of intubation, overall intubation success rates, hemodynamic changes and complications during the procedure were recorded. RESULTS: There was no significant difference in the time to intubation, success rates of 1st trial of intubation, overall intubation success rates, hemodynamic changes and complications between neutral position and sniffing position groups. CONCLUSIONS: Success rates of lightwand facilitated tracheal intubation in neutral position versus sniffing position showed no significant difference. Therefore, both positions are suitable for lightwand assisted intubation.
Adult
;
Axis, Cervical Vertebra
;
Head*
;
Hemodynamics
;
Humans
;
Informed Consent
;
Intubation*
;
Mouth
8.The Comparison of Suceess Rates of Lightwand Facilitated Tracheal Intubation in Different Head Positions (Neutral Position versus Sniffing Position).
So Jung BYUN ; Ji Hyang LEE ; Eun Ju KIM ; Sang Gon LEE ; Jong Seok BAN ; Byung Woo MIN
Korean Journal of Anesthesiology 2006;51(3):308-311
BACKGROUND: It has been known that a patient head in sniffing position for lightwand facilitated tracheal intubation is not an anatomically appropriate method. However, there is no evidence nor study whether it is true or not. In this study, we compared success rates of lightwand facilitated tracheal intubation in neutral position versus sniffing position. METHODS: With informed consent, sixty adult patients of ASA physical status I or II were randomly allocated into two groups: neutral position (N) or sniffing position (S) group. A lightwand and tube were bent at approximately a 90degrees degree angle for N group and a 60 degree angle for S group on the basis of mouth axis and pharyngeal axis. The time to intubation, success rates of 1st trial of intubation, overall intubation success rates, hemodynamic changes and complications during the procedure were recorded. RESULTS: There was no significant difference in the time to intubation, success rates of 1st trial of intubation, overall intubation success rates, hemodynamic changes and complications between neutral position and sniffing position groups. CONCLUSIONS: Success rates of lightwand facilitated tracheal intubation in neutral position versus sniffing position showed no significant difference. Therefore, both positions are suitable for lightwand assisted intubation.
Adult
;
Axis, Cervical Vertebra
;
Head*
;
Hemodynamics
;
Humans
;
Informed Consent
;
Intubation*
;
Mouth
9.Clinical Features of Lower Extremity Artery Embolism: Comparison of the Clinical Features between Ilio-femoral and Popliteal Artery Embolism.
Keun Young KIM ; Seung Ho KIM ; Seung Jae BYUN ; Jung Nam KWON ; Byung Jun SO
Journal of the Korean Surgical Society 2008;74(3):212-216
PURPOSE: Prompt operative management of patients with peripheral artery embolism remains the treatment of choice for this malady. The clinical status of the limb, rather than the elapsed time from the onset of occlusion, was recently determined to be the best predictor of limb salvage. We investigated the clinical features, therapeutic modalities and treatment results of popliteal artery embolism compared with that of ilio-femoral artery embolism. METHODS: A retrospective review was carried out for 21 cases that were treated for lower extremity arterial embolism, from March 2000 to June 2006. The patients were classified into two groups; Group A (ilio-femoral artery embolism, n=11) and Group B (popliteal artery embolism, n=10). We analyzed the interval time from the onset of symptoms to starting treatment (the interval time), the degree of limb ischemia, the therapeutic modalities and the treatment results. RESULTS: The average interval time was 16.2+/-16.9 hours in the total 21 cases; the average interval time for Group A was 7.7+/-2.9 hours and that for Group B was 25.5+/-20.9 hours (P<0.05), and the incidence of severe limb ischemia (class IIb according to the SVS/ISCVS reporting standard) was 72.7% vs 20.0%, respectively (P<0.05). For the therapeutic modalities, surgical thromboembolectomy was performed in all cases of Group A and for 3 cases of Group B. Seven cases of Group B received radiologic intervention (3 cases percutaneous aspiration embolectomy only, and 4 cases of additional thrombolytic therapy). CONCLUSION: This study shows that the interval time for popliteal artery embolism is longer than that for ilio-femoral artery embolism. In other words, it is suggested that the symptomatic progression of popliteal artery embolism is slower than that of ilio-femoral artery embolism. Therefore, we can have more chances for variable therapeutic options such as surgical thromboembolectomy, percutaneous aspiration embolectomy and/or thrombolytic therapy in patients suffering with popliteal artery embolism.
Arteries
;
Embolectomy
;
Embolism
;
Extremities
;
Humans
;
Incidence
;
Ischemia
;
Limb Salvage
;
Lower Extremity
;
Popliteal Artery
;
Retrospective Studies
;
Stress, Psychological
;
Thrombolytic Therapy
10.What is the Optimal Dosage of Remifentanil for Minimizing the Hemodynamic Change to Tracheal Intubation during Induction with Propofol Target-Controlled Infusion?.
So Jung BYUN ; Sun Ho HWANG ; Jun Ho KIM ; Jong Suk BAN ; Byung Woo MIN
Korean Journal of Anesthesiology 2006;50(2):140-145
BACKGROUND: Laryngoscopy and tracheal intubation are associated with hemodynamic pressor responses, which lead to adverse effect. Opioids have been used to reduce the hemodynamic change. The purpose of this study was to investigate an optimal dosage of remifentanil for attenuating hemodynamic change. METHODS: 120 ASA class 1-2 patients, scheduled for elective surgery, were divided randomly into 4 groups. Anesthesia was induced with vecuronium priming dose (0.01 mg/kg) and TCI of propofol target concentration 8 microgram/ml. This was reduced to 4 microgram/ml when the effect-site concentration had been 3 microgram/ml. After the effect-site concentration had reached 4 microgram/ml, vecuronium (0.09 mg/kg) was given. At the same time, control group received normal saline, group R0.25 received remifentanil 0.25 microgram/kg, group R0.5 received remifentanil 0.5 microgram/kg, group R1 received remifentanil 1 microgram/kg over 60s and an infusion 0.2 microgram/kg/min. Intubation was performed after maximum depression of the single twitch was shown by single twitch stimulation test. Sytolic blood pressure, mean arterial pressure, diastolic blood pressure, heart rate and BIS value were measured preinduction, after propofol induction, immediately before and after intubation and 1, 2, 3, 4 minutes after intubation, respectively. RESULTS: Post-intubation mean arterial pressure decreased significantly from pre-intubation value in group R0.5 and R1 (P < 0.05). In group R0.5 and R1, hypotension and bradycardia occurred but there were no significant differences in their incidence between two groups. CONCLUSIONS: We suggest that remifentanil 0.5 microgram/kg bolus and an infusion of 0.2 microgram/kg/min attenuate the pressor response to tracheal intubation in patients anesthetized with propofol TCI.
Analgesics, Opioid
;
Anesthesia
;
Arterial Pressure
;
Blood Pressure
;
Bradycardia
;
Depression
;
Heart Rate
;
Hemodynamics*
;
Humans
;
Hypotension
;
Incidence
;
Intubation*
;
Laryngoscopy
;
Propofol*
;
Vecuronium Bromide