1.Intraoperative Coagulation Management by TEG in a Patient with Aplastic Anemia: A case report.
Jin Eui BAEK ; Sang Bum KIM ; Ho Sung KWAK
Korean Journal of Anesthesiology 1997;33(4):757-761
This case was an acquired aplastic anemia patient who required a major operation for excision of a mediastinal mass. The authors previewed that the coagulation abnormalities would be developed due to major operation. Thus we decided to monitoring the coagulation function using the thromboelastography during the perioperative period and checked the complete blood count, concommitantly. The total blood volume lost during operation was 1800 ml, so we gave him a transfusion of 10 U's of platelet concentrate, 10 U's of pheretic platelet rich plasma and 5 U's of whole blood. The thromboelastography was a good guide that helped us to avoid excessive treatment of the coagulation abnormalities. We concluded that the thromboelastograhy was a reliable and effective monitoring system at the intraoperative coagulation management.
Anemia, Aplastic*
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Anesthesia, General
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Blood Cell Count
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Blood Platelets
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Blood Volume
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Humans
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Perioperative Period
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Platelet-Rich Plasma
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Thrombelastography
2.A Case of Cystic Degeneration of Uterine Adenomyosis.
Yang Soo KWAK ; Sang Won LEE ; Ho Joon WHANGBO ; Doo Jin LEE ; Sung Ho LEE
Yeungnam University Journal of Medicine 1994;11(2):405-410
Adenomyosis is a common disease of middle-aged women and adenomyoma is a variety of adenomyosis that formed localized tumor. Cystic degeneration of an adenomyoma is a rare clinical manifestation. A 30-year-old parous woman suffered from severe dysmenorrhea and menorrhagia for about 5 months, was operated under the impression of endometriosis of the pelvis. Following the operation, cystic degeneration of an adenomyoma was found incidentally. The authors experienced a case of adenomyosis that formed cystic tumor of uterus and presented with a pertinent literatures.
Adenomyoma
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Adenomyosis*
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Adult
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Dysmenorrhea
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Endometriosis
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Female
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Humans
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Menorrhagia
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Pelvis
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Uterus
3.Genetic variants of interferon lambda-related genes and chronic kidney disease susceptibility in the Korean population
Jin Ho KWAK ; Jin Hyuk PAEK ; Gyeong Im YU ; Seungyeup HAN ; Woo Yeong PARK ; Yaerim KIM ; Dong Hoon SHIN ; Kyubok JIN
Kidney Research and Clinical Practice 2022;41(4):442-451
Chronic kidney disease (CKD) is a common condition leading to renal dysfunction and is closely related to increased cardiovascular and mortality risk. CKD is an important public health issue, and recent genetic studies have verified common CKD susceptibility variants. This research examines the interrelationship between candidate genes polymorphisms of interferon lambda (IFNL) induction, its signaling pathway, and CKD. Methods: Seventy-five patients with advanced CKD and 312 healthy subjects (as controls) participated in this research. A replication set composed of 172 patients with advanced CKD and 365 controls was used for additional analysis. The genotype of single nucleotide polymorphisms (SNPs) was determined by the Axiom Genome-Wide Human Assay and SNaPshot assay. Results: The SNP of IFNL3 was significantly associated with CKD in the codominant (p = 0.02) and dominant models (p = 0.02). In addition, the SNPs of IFNL2 were significantly associated with CKD in the dominant model (p = 0.03), and the SNP of interferon alpha receptor 2 (IFNAR2) was significantly associated with CKD in the log-additive model (p = 0.03). Concerning rs148543092, in the IFNL3 gene, a significant association was observed after pooling the original and replication sets. Conclusion: These results indicate that SNPs in the IFNL induction and signal pathway may be associated with CKD risk in the Korean population. Finally, our results also show that the IFNL3 gene variant may be associated with CKD risk.
4.Risk Factors of Local Recurrence in Phyllodes Tumor of the Breast according to the Clinicopathological Characteristics.
Yeon Suk PARK ; Beom Seok KWAK ; Byung Ho SON ; Sei Hyun AHN ; Jin Ho KWAK
Journal of the Korean Surgical Society 2008;74(3):171-176
PURPOSE: Phyllodes tumor is a rare fibroepithelial disease of the breast that is classified as benign, borderline malignant, or malignant according to the pathological characteristics. To clarify diagnostic criteria for these groups, we analyzed the clinico-pathological characteristics of phyllodes tumors and the risk factors for local recurrence after surgery. METHODS: Between January 1997 and March 2003, we included 70 cases of recurring, pathologically-confirmed phyllodes tumors after surgery. Medical records were reviewed retrospectively for clinical characteristics and pathologic findings. RESULTS: The mean follow up period was 69.3 months (range 45.4 to 119.3 months) and mean age, 39.4 years old (range 18 to 63 years old). Benign phyllodes tumors were present in 45 cases (64.3%), borderline malignant tumors in 15 cases (21.4%), and malignant tumors in 10 cases (14.3%). A local recurrence developed in 9 cases (12.9%), with three of these cases benign (33.3%), 5 cases were borderline malignant (55.6%), and 1 case was malignant (11.1%). Borderline malignant cases showed a higher local recurrent rate (6.7%, 33.3%, and 10.0%, P=0.027). The local recurrence rate between the tumor-positive or close (<1 mm) resection margins and non-involved cases was different for benign (7.7% vs. 6.3%, P=0.031) and borderline malignant cases (60.0% vs. 20.0%, ns). CONCLUSION: Pathologic classification and small resection margins are risk factors for local recurrence in phyllodes tumors. Therefore, borderline malignant phyllodes tumors require wide excision with a sufficient resection margin or a mastectomy to prevent local recurrence.
Breast
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Follow-Up Studies
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Mastectomy
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Medical Records
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Phyllodes Tumor
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Recurrence
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Retrospective Studies
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Risk Factors
5.Comparison of ANG II-mediated Ca2+i, IP3 Production and ATPi in Isolated Renal Proximal Convoluted Tubules of Adult SHR and WKY.
Jin Oh KWAK ; Hyun Woo KIM ; Seok Ho CHA
Korean Journal of Nephrology 2004;23(6):848-858
BACKGROUND: The renin angiotensin syaimstem plays an important role in hypertension. Therefore, the purpose of this study was to investigate the comparison of responsiveness to angiotensin II (ANG II) in isolated renal proximal convoluted tubules of spontaneously hypertensive (SHR) and Wistar Kyoto (WKY) rats. METHODS: Intracellualr calcium concentration ([Ca2+i) was measured using Fura- 2/AM, inositol trisphosphate (IP3) accumulation was determined by radioimmuno assay and cellular ATP content measured using the microchemilunescene method in renal proximal tubule suspension or isolated renal proximal tubules. RESULTS: When measured the ANG II-induced [Ca2+i, the young rats showed a greater response to ANG II than adult rats in both strains. The ANG II (10-7 M)-induced [Ca2+i transient in the cortical tubule suspension from adult SHR was significantly lower than that in age-matched WKY. In isolated proximal tubule segments, ANG II-induced [Ca2+i increment was only observed in S1 segments. Comparing responsiveness to ANG II in SHR and WKY, similar phenomenon was observed as experiment using tubule suspension. IP3 accumulation by ANG II also attenuated in adult SHR. The 20-minutes incubation without any exogenous substrate in proximal convoluted tubule (S1) significantly decreased cellular ATP content and ANG II (10-7 M) inhibited decrement of cellular ATP level. The effect of ANG II on cellular ATP restoration was disappeared by the treatment with losartan. CONCLUSION: From these results, the responsiveness of ANG II to AT1A receptor is attenuated in the proximal convoluted tubules of adult SHR comparing the age- mached WKY.
Adenosine Triphosphate
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Adult*
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Angiotensin II
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Angiotensins
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Animals
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Calcium
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Humans
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Hypertension
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Inositol
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Losartan
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Rats
;
Renin
6.The Effects of the Combination of Ketamine and Midazolam for Sedation during Epidural Anesthesia.
Jin Eui BAEK ; Eun Mi KIM ; Myoung Hye PARK ; Ho Sung KWAK
Korean Journal of Anesthesiology 1997;33(4):721-727
BACKGROUND: Epidural anesthesia is becoming an increasingly important aspect of anaesthetic practice because it has many advantages. To achieve the appropriate sedation, various methods have been described. The authors applied the ketamine for this purpose in subanesthetic dose and compared with the midazolam that has been most commonly used for intravenous sedation. METHODS: Fifty-seven adult patients undergoing lower abdominal and extremity surgery who were receiving epidural anesthesia were randomely enrolled into this clinical study. They were allocated to three groups to receive only normal saline (group C), midazolam 0.05 mg/kg (group M) and ketamine 0.5 mg/kg midazolam 0.05 mg/kg (group K) in normal saline 10ml, respectively. Hemodynamic and respiratory measurements were recorded at baseline, 1 minute, 3 minute, 5 minute, 10 minute, 20 minute and 30 minute after sedation. The degree of sedation was assessed by a blinded observer using sedation score. RESULTS: There were no significant differences for hemodynamic and respiratory parameters, but decrements of arterial pressure at 1 minute after sedation were most remarkable in the group M. Sedation was satisfactorily achieved by combination of ketamine and midazolam without significant emergence reaction. CONCLUSIONS: The combination of ketamine and midazolam was judged to be suitable alternative for sedation during epidural anesthesia.
Adult
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Anesthesia, Epidural*
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Arterial Pressure
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Extremities
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Hemodynamics
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Humans
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Ketamine*
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Midazolam*
7.The Effect of Radial Keratotomy (RK) Combined with Double Ruiz Procedure on the Corneal Curvature.
Jong Woo KIM ; Sang In KWAK ; Jin Hak LEE ; Dong Ho YOUN
Journal of the Korean Ophthalmological Society 1991;32(9):738-746
Under the postulation that double Ruiz procedure could increase the effect of radial keratotomy(RK), RK combined with horizontal and vertical Ruiz procedure was performed in three groups of 22 rabbit eyes. In the group A of six eyes, RK with vertical Ruiz procedure was performed, and eight weeks later the horizontal Ruiz procedure was added. In the group B of eight eyes, RK with horizontal Ruiz procedure was performed, and four weeks later the vertical Ruiz procedure was added. In the group C of eight eyes, RK with horizontal and vertical Ruiz procedure were performed simultaneously. As a control, in the group D of eight eyes, RK without Ruiz procedure was performed. Changes in keratometry for four weeks and eight weeks postoperatively were analyzed. The results were as follows: 1. At eight weeks postoperatively, mean changes in keratometry were 6.434D, 3.663D, 4.030D and 1.585D in groups A,B,C and D, respectively. 2. Mean changes in keratometry of groups A,B and C were significantly higher than that of group D. 3. Mean change in keratometry of 6.434D in group A was significantly the highest of the three groups in which the double Ruiz procedure was performed. From the above results, it was concluded that the double Ruiz procedure increased the effect of RK and that the procedure was more effective when secondary Ruiz procedure was added eight weeks later.
Rabbits
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Animals
8.The effect of vaginal bleeding in the first half of pregnancy on outcome.
Jae Whan KWAK ; Jin Wan PARK ; Tai Young HWANG ; Hyun Ho KIM ; Won Ki LEE
Korean Journal of Obstetrics and Gynecology 1992;35(11):1577-1582
No abstract available.
Pregnancy*
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Uterine Hemorrhage*
9.Spontaneous Hemomediastinum and Hemothorax Caused by a Ruptured Bronchial Artery Aneurysm.
The Korean Journal of Thoracic and Cardiovascular Surgery 2011;44(4):314-317
A bronchial artery aneurysm (BAA) is uncommon and usually associated with chronic inflammatory lung disease or a systemic vascular condition, which is rarely the etiology of mediastinal hemorrhage. A middle-aged person presented with spontaneous hemothorax and hemomediastinum. A diagnostic evaluation identified a bronchial artery aneurysm as the source. To prevent further rupture, we performed a bronchial artery embolization. In the absence of trauma or other causes for hemothorax and mediastinal hemorrhage, the possibility of a BAA should be considered. A bronchial artery aneurysm can be managed by interventional techniques as well as surgery.
Aneurysm
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Bronchial Arteries
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Hemorrhage
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Hemothorax
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Humans
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Lung Diseases
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Mediastinum
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Rupture
;
Vascular Diseases
10.Spontaneous Hemomediastinum and Hemothorax Caused by a Ruptured Bronchial Artery Aneurysm.
The Korean Journal of Thoracic and Cardiovascular Surgery 2011;44(4):314-317
A bronchial artery aneurysm (BAA) is uncommon and usually associated with chronic inflammatory lung disease or a systemic vascular condition, which is rarely the etiology of mediastinal hemorrhage. A middle-aged person presented with spontaneous hemothorax and hemomediastinum. A diagnostic evaluation identified a bronchial artery aneurysm as the source. To prevent further rupture, we performed a bronchial artery embolization. In the absence of trauma or other causes for hemothorax and mediastinal hemorrhage, the possibility of a BAA should be considered. A bronchial artery aneurysm can be managed by interventional techniques as well as surgery.
Aneurysm
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Bronchial Arteries
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Hemorrhage
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Hemothorax
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Humans
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Lung Diseases
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Mediastinum
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Rupture
;
Vascular Diseases