1.Effects of topical and intravenous heparin on thrombosis of microvascular anastomoses.
Sung Youl KIM ; Seong Hee RYU ; Hong Ju PARK ; Hee Kyun OH ; Sun Youl RYU ; Ok Joon KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2003;29(4):232-238
This study was performed to evaluate the effect of topical and intravenous heparin on thrombosis and patency in the microvascular anastomosis of the traumatized veins. Nine white rabbits weighing about 2kg were used. After exposure of both femoral veins, the veins were crushed by the jaws of smooth needle holder in order to create a thrombosis model. Transectional incision was made in the vein. The animals were then divided into 3 groups based on the administration method of heparin: 1) Experimental Group I, topical irrigation of lumen with heparin saline solution (n=6); 2) Experimental Group 2, topical irrigation of lumen with heparin saline solution and intravenous injection of heparin (0.75 mg/kg) via the marginal ear vein for 3 days; 3) Control Group, topical irrigation of lumen with saline solution (n=6). The patency was evaluated with empty-and-refill test and thrombus formation was judged by surgical microscope. The results were as follows: 1. Thirty minutes after microvascular anastomosis, the patency fall Experimental Groups was better than Control group. However, there was no significant difference among groups. 2. Three days after anastomosis, the patency of all Experimental Groups was much more improved than that of Control Group (P<0.05). There was no significant difference between Experimental Group 1 and 2. 3. Three days after anastomosis, the amount of thrombus in all Experimental Groups was much less than that of Control Group (P<0.05). 4. In histologic findings a lot of luminal thrombus were observed around sutured area in Control Groups. Few luminal thrombus was observed in all Experimental Groups. Mild necrosis in the vessel wall was observed around sutured area in all specimens. These results indicate that topical irrigation of heparin may improve the patency and inhibit the formation thrombus in the microvascular anastomosis of the traumatized veins.
Animals
;
Ear
;
Femoral Vein
;
Heparin*
;
Injections, Intravenous
;
Jaw
;
Necrosis
;
Needles
;
Phenobarbital
;
Rabbits
;
Sodium Chloride
;
Thrombosis*
;
Veins
2.Radiotherapy Results in Stage IIB Uterine Cervix Cancer.
Whoon Jong KIL ; Mison CHUN ; Seunghee KANG ; Young Taek OH ; Hee Sug RYU ; Hee Jae JU ; Eun Ju LEE
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2001;19(4):345-352
PURPOSE: To evaluate the treatment results and prognostic factors after radiotherapy in stage IIB uterine cervix cancer. MATERIALS AND METHODS: We retrospectively analyzed the records of 90 patients with stage IIB uterine cervix cancer who received radiotherapy between 9/94 and 12/99. Age was ranged from 28 to 79 years (median 57). Tumor size was > or = 4 cm in 64 patients. Preteatment SCC level was measured in 76 patients. Twenty nine patients received conventional radiotherapy (QD) and the others received modified hyperfractionated radiotherapy (BID). Only 7 patients in BID had tumor size <4 cm. All patients received high dose rate brachytherapy (4 Gy x 7 or 5 Gy x 6). No patient received concurrent chemotherapy during radiotherapy. Follow up period was ranging from 9 to 76 months (median 38). RESULTS: The 5-year overall and disease free survival rates were 73.4% and 71.6%, respectively. Local recurrences occurred in 10% of patients, and distant metastasis in 18.9%. There was a significant correlation between OS/DFS and tumor size (<4 cm; OS 95.2%, DFS 91.4%, > or = 4 cm; OS 63.4%, DFS 63.4%). Pretreatment SCC level was one of prognostic factors only in univariate analysis. CONCLUSION: With modified hyperfractionated radiotherapy, there was very low local recurrence rate (6.6%) and high 5-year overall and disease free survival rate (75.4% and 70.5%), which is comparable to results after concurrent chemoradiotherapy in bulky, locally advanced stage IIB uterine cervix cancer.
Brachytherapy
;
Cervix Uteri*
;
Chemoradiotherapy
;
Disease-Free Survival
;
Drug Therapy
;
Female
;
Follow-Up Studies
;
Humans
;
Neoplasm Metastasis
;
Radiotherapy*
;
Recurrence
;
Retrospective Studies
3.Antepartum fetal assessment based on fetal biophysical profile scoring in high risk pregnancies.
Young Ju KIM ; Ji A RYU ; Hye Sung MOON ; Hyn Mee RYU ; Kyung Hee CHOI ; Cheong Il KIM ; Bock Hi WOO
Korean Journal of Obstetrics and Gynecology 1993;36(7):2928-2943
No abstract available.
Pregnancy*
4.Comparative study for diagnosis of pelvic malignancy between serum CA 125 and transvaginal sonogram.
Hyun Mee RYU ; Hye Sung MOON ; Young Ju KIM ; Kyung Hee CHOI ; Sun Hee CHUN ; Bock Hi WOO
Korean Journal of Obstetrics and Gynecology 1993;36(7):2899-2912
No abstract available.
Diagnosis*
5.Clinical and pathologic correlation of endometrium detected by transvaginal sonography in postmenopausal women.
Hye Sung MOON ; Young Ju KIM ; Hyn Mee RYU ; Kyung Hee CHOI ; Hye Woon JUNG ; Bock Hi WOO
Korean Journal of Obstetrics and Gynecology 1993;36(7):2913-2927
No abstract available.
Endometrium*
;
Female
;
Humans
6.Torsion of Ovarian Tumor: CT Findings.
So Yong CHANG ; Eun Ju LEE ; Hee Sug RYU ; Jung Ho SUH
Journal of the Korean Radiological Society 1996;35(5):771-776
PURPOSE: To evaluate characteristic CT features of twisted ovarian tumors and to assess the diagnostic value of the existence of twisted vascular pedicle in torsion of ovarian tumors. MATERIALS AND METHODS: Weretrospectively reviewed the clinical and CT findings in eleven patients with ovarian tumor torsion confirmed bysurgery. Pre- and post-contrast CT were available in nine patients and post-contrast CT in two. All twisted ovaries, tubes, and tumors showed hemorrhagic infarction and necrosis. RESULTS: All patients had twisted vascular pedicle of the ovarian tumor evaluated by CT. Eight patients with left ovarian tumor had twisted vascular pedicleon the left side of the tumor, and three patients with right ovarian tumor on the right side of the tumor. Themorphologic characteristics of twisted vascular pedicle were coiled target appearance (4 cases), beak appearance(3 cases), doughnut appearance (3 cases), and mass with irregular margin (1 case). High density on precontrast CT scan was present in the pedicle in four cases and linear contrast enhancement was seen in the peripheral portionof the pedicle in four cases. The shape, density and location of ovarian tumors were inconsistent, however, contrast enhancement was not seen in all patients. Other findings were uterine deviation, loss of fat plane andpelvic fluid. CONCLUSION: Detection of twisted vascular pedicle by CT may be useful for the diagnosis of ovariantumor torsion.
Animals
;
Beak
;
Diagnosis
;
Humans
;
Infarction
;
Necrosis
7.Schmorl's Nodes of the Lumbar Spine: Are They Simply Normal.
Seong Ju HONG ; Kyung Nam RYU ; Woo Suk CHOI ; Yup YOON
Journal of the Korean Radiological Society 1998;38(6):1085-1089
PURPOSE: To evaluate the accompanying abnormal findings of Schmorl's nodes(SN), a normal variants of thelumbar spine. MATERIALS AND METHODS: Seventy-five patients with one or more SN, as seen on lumbar spine MRI werestudied. Using a 1.5T MR unit, the number and location of SN, their site of the end plate, adjacent disc changesand lesion associated and not associated with SN, and accompanying associated bony spinal stenosis wereretrospectively investigated. RESULTS: Among the 75 patients, 230 SN were noted in 375 vertebral bodies; theywere relatively frequently located on the second(65, 28.2%) and third(65, 28.2%) lumbar vertebrae. The most commonend-plate site of SN was the posterior one-third portion(160;69.6%). In 450 discs of these 75 patients, 172lesions were noted;those associated with SN(76/167, 45.5%) was more common than those not thus associated (96/283,33.9%)(p <0.05), and those associated with SN were relative frequently located on intervertebral disc L2-3 orL3-4(p <0.05). Thirty-seven SN (16.1%) were associated with bony spinal stenosis. CONCLUSION: Because it isfrequently associated with disc lesions and bony spinal stenosis, SN of the lumbar spine may be a pathologiccondition rather than a normal variant.
Humans
;
Intervertebral Disc
;
Lumbar Vertebrae
;
Magnetic Resonance Imaging
;
Spinal Stenosis
;
Spine*
8.A qualitative study to understand the perception and the need for preventive dental services among dental professionals
Jae-In RYU ; Hyun-Ju PARK ; Hyang-Ah PARK
Journal of Korean Academy of Oral Health 2022;46(1):3-10
Objectives:
This study aims to understand the perceptions regarding preventive dental services among dental professionals.
Methods:
In-depth interviews were conducted with three groups of dental professionals―dentists, dental hygienists, and dental hygienists that specialized in preventive service―who were selected using a convenience sampling method.
Results:
First, there was limited awareness among dentists regarding the need for preventive care, because of the treatment-oriented philosophy and scarcity of preventive care success models. Second, dental hygienists commented that there was a lack of the person in charge and systematic process for preventive services. It would not help when they decided to change working place even though they had high anxiety working for preventive care. However, both these professionals agreed that preventive treatment is important as the core of care and that it was important to develop various improvement methods to promote preventive services.
Conclusions
To activate preventive services in dental clinics, it is essential to improve the operating system and encourage dental professionals to realize the importance of preventive services.
9.Effects of local irrigation and intravenous administration of human tissue-type plasminogen activator on microvascular thrombosis
Seung Hee RYU ; Il Young SEO ; Hong Ju PARK ; Hee Kyun OH ; Sun Youl RYU ; Ok Joon KIM ; Jeong Hee CHOI
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2003;25(5):398-404
Administration, Intravenous
;
Animals
;
Ear
;
Femoral Vein
;
Humans
;
Jaw
;
Needles
;
Phenobarbital
;
Rabbits
;
Sodium Chloride
;
Thrombosis
;
Tissue Plasminogen Activator
;
Veins
10.Management of pleomorphic adenoma of the palate
Ju Won HA ; Sung BAEK ; Jong Woon SONG ; Choong Youl PARK ; Yong Ook LEE ; Hong Ju PARK ; Hee Kyun OH ; Sun Youl RYU ; Ok Joon KIM
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2001;23(6):572-577
No abstract available.
Adenoma, Pleomorphic
;
Palate