1.The effects of hyperbaric oxygen therapy on the survival of dorsal random skin flap: an experimental study in streptozotocin-induced diabetic rats.
Heung Sik PARK ; Yoon Jae CHUNG ; Hong Kyu CHO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(6):966-977
There have been increasing interests of diabetes in the realm of plastic surgery due to problems like foot ulcer as a complication, delayed wound healing or higher failure rates of flap surgery. Main pathology in diabetes is microvascular compromise as well as metabolic derangements. The disturbance in microvascular circulation results in ischemic environments in the body and acts as a main factor that determines the limit of reconstructive or aesthetic plastic surgery. A useful method to overcome such problems is the use of hyperbaric oxygen therapy, which is known to be effective in the treatment of ischemic skin ulcer or osteoradionecrosis. However, there have been few studies on the survival of diabetic random skin flap or the effects of hyperbaric oxygenation directed to increase survival of such flap. In our study, we supposed that the survival of diabetic random skin flap was diminished owing to compromised microvascular pathology and blood rheology, and metabolic derangements, so we hypothesized that hyperbaric oxygen therapy has both reversible and irreversible effects on the survival of ischemic random skin flap in Streptozotocin-induced diabetic rats. Increase of local transcutaneous oxygen concentration, O2 affinity in blood and dysmorphogenesis of red blood cells are reversible and relatively short-term effects and promotion of neoangiogenesis is irreversible or long-term effects. We intended to confirm that hyperbaric rats and to compare the effects between preoperative and postoperative hyperbaric oxygenation on the survival of such flap. And we expect the additional effects of hyperbaric oxygenation on metabolism in diabetic rat, such as lowering the blood glucose level and solving the arrested weight gain. We divided Streptozotocin-induced diabetic rats into three groups: the first was non-treatment diabetic group, the second was preoperative hyperbaric oxygen treated diabetic group(100% O2, 2 atm, 90min, 15sessions, twice a day), and the third was postoperative hyperbaric oxygen treated group(100% O2, 2atm, 90min, 15sessions, twice a day). After elevation of random skin flap on dorsum of diabetic rats, we evaluated the extent of flap survival by measuring the necrotic areas at 3rd, 7th, 10th, and 13th postoperative days. At that time, we intended to evaluate both effects on flap survival by preoperative and postoperative hyperbaric oxygen therapy. As a result, flap survival of non-treated diabetic group was 41% at 13th postoperative days. In diabetic groups with preoperative and postoperative hyperbaric oxygen therapy, flap survival were increased to 64.6% and 62.4% respectively. Diabetic groups with hyperbaric oxygen therapy have a tendency of meaningful decrement in blood glucose level. However, there were no meaningful differences between preoperative and postoperative hyperbaric oxygen therapy. Hyperbaric oxygen therapy has no effective correlations with body weight changes. We conclude that hyperbaric oxygen therapy has some useful effects on the survival of diabetic random skin flap.
Animals
;
Blood Glucose
;
Body Weight Changes
;
Erythrocytes
;
Foot Ulcer
;
Hyperbaric Oxygenation*
;
Metabolism
;
Osteoradionecrosis
;
Oxygen
;
Pathology
;
Rats*
;
Rheology
;
Skin Ulcer
;
Skin*
;
Surgery, Plastic
;
Weight Gain
;
Wound Healing
2.Blood Glucose Values in Healthy Premature Infants.
Heung Kyu KIM ; Chul Seung SON ; Eun Hee CHO
Journal of the Korean Pediatric Society 1984;27(4):319-325
No abstract available.
Blood Glucose*
;
Humans
;
Infant, Newborn
;
Infant, Premature*
3.Antihypertensive effect of perindopril in patients with essential hypertension.
Hyeon Geun CHO ; Duk Hee KANG ; Heung Soo KIM ; Seong Kyu HA ; Ho Yung LEE ; Dae Suk HAN
Korean Journal of Nephrology 1993;12(1):76-83
No abstract available.
Humans
;
Hypertension*
;
Perindopril*
4.A Case Report of Urethral Fistula due to Vesical Calculi.
In Ho SONG ; Hong Kyu CHOI ; Jae Heung CHO
Korean Journal of Urology 1973;14(2):119-121
Urethral fistula due to vesical calculi is very rare in urological field.We are presenting a case of urethral fistula due to vesical calcula along with article review.
Fistula*
;
Urinary Bladder Calculi*
5.MR Imaging of Anterior Cruciate Ligament Injury: Associated Findings.
Jin Mo GOO ; Heung Sik KANG ; Chu Wan KIM ; Gi Seok HAN ; Kyu Hyung CHO ; Sang Cheol SEONG
Journal of the Korean Radiological Society 1995;32(4):617-623
PURPOSE: Authors investigated the associated findings and their value in the diagnosis of anterior cruciate ligament(ACL) injury in MR image. MATERIAL AND METHODS: The knee MR images of 47 patients with ACL injury(complete; 24, partial; 23) and 61 patients with normal ACL confirmed by the knee arthroscopy or operation were reviewed retrospectively. The degree of anterior translocation of tibia and the degree of posterior cruciate ligament(PCL) buckling were evaluated. The prevalence and pattern of associated adjacent bone, ligament and meniscus injuries were studied. RESULTS: The means( +/- 2standard errors) of anterior translocation were different significantly in statistical analysis(p<0.001, student t-test) between injury group(7.51 +/- 1.16mm) and normal group(-0.56 +/- 0.92mm). In the level of 5mm of anterior translocation for the criteria of ACL injury, the sensitivity, specificity, accuracy were 78.7%, 89.5%, 84.3% for each. The means of PCL buckling ratio were also different statistically b. etween injury group(0.23 +/- 0.02) and normal group(0.17 +/- 0.01)(p<0.001). In the level of 0.20 for diagnostic criteria of ACL injury, the sensitivity, specificity, accuracy were 71.4%, 83.6%, 78.4% for each. Thirty one medial meniscus tear(66%), thirteen lateral meniscus tear(28%), ten medial collateral ligament injury(28%), one PCL injury (2%) were associated with ACL injury. The twenty nine bone marrow changes were found in twenty patients {43%) which included acutely injured seven patients. In acute cases, the bone marrow changes were depicted as diffuse or focal high signal intensity lesions in lateral femoral or tibial condyles in contrast to the changes in chronic cases depicted as focal low signal intensity lesions in variable location. Lateral femoral condylar notch depression were found in nine patients(19%) and avulsion fractures of anterior tibial spine in four patients(9%). CONCLUSION: The associated findings with ACL injury (anterior translocation, buckling of PCL, associated bone, ligament and meniscus injuries) are considered to be helpful in the diagnosis of ACL injury on Knee MR images, when the findings of anterior cruciate ligament itself are not confirmative.
Anterior Cruciate Ligament*
;
Arthroscopy
;
Bone Marrow
;
Collateral Ligaments
;
Depression
;
Diagnosis
;
Humans
;
Knee
;
Ligaments
;
Magnetic Resonance Imaging*
;
Menisci, Tibial
;
Prevalence
;
Retrospective Studies
;
Sensitivity and Specificity
;
Spine
;
Tibia
6.MR Imaging of Anterior Cruciate Ligament Injury: Associated Findings.
Jin Mo GOO ; Heung Sik KANG ; Chu Wan KIM ; Gi Seok HAN ; Kyu Hyung CHO ; Sang Cheol SEONG
Journal of the Korean Radiological Society 1995;32(4):617-623
PURPOSE: Authors investigated the associated findings and their value in the diagnosis of anterior cruciate ligament(ACL) injury in MR image. MATERIAL AND METHODS: The knee MR images of 47 patients with ACL injury(complete; 24, partial; 23) and 61 patients with normal ACL confirmed by the knee arthroscopy or operation were reviewed retrospectively. The degree of anterior translocation of tibia and the degree of posterior cruciate ligament(PCL) buckling were evaluated. The prevalence and pattern of associated adjacent bone, ligament and meniscus injuries were studied. RESULTS: The means( +/- 2standard errors) of anterior translocation were different significantly in statistical analysis(p<0.001, student t-test) between injury group(7.51 +/- 1.16mm) and normal group(-0.56 +/- 0.92mm). In the level of 5mm of anterior translocation for the criteria of ACL injury, the sensitivity, specificity, accuracy were 78.7%, 89.5%, 84.3% for each. The means of PCL buckling ratio were also different statistically b. etween injury group(0.23 +/- 0.02) and normal group(0.17 +/- 0.01)(p<0.001). In the level of 0.20 for diagnostic criteria of ACL injury, the sensitivity, specificity, accuracy were 71.4%, 83.6%, 78.4% for each. Thirty one medial meniscus tear(66%), thirteen lateral meniscus tear(28%), ten medial collateral ligament injury(28%), one PCL injury (2%) were associated with ACL injury. The twenty nine bone marrow changes were found in twenty patients {43%) which included acutely injured seven patients. In acute cases, the bone marrow changes were depicted as diffuse or focal high signal intensity lesions in lateral femoral or tibial condyles in contrast to the changes in chronic cases depicted as focal low signal intensity lesions in variable location. Lateral femoral condylar notch depression were found in nine patients(19%) and avulsion fractures of anterior tibial spine in four patients(9%). CONCLUSION: The associated findings with ACL injury (anterior translocation, buckling of PCL, associated bone, ligament and meniscus injuries) are considered to be helpful in the diagnosis of ACL injury on Knee MR images, when the findings of anterior cruciate ligament itself are not confirmative.
Anterior Cruciate Ligament*
;
Arthroscopy
;
Bone Marrow
;
Collateral Ligaments
;
Depression
;
Diagnosis
;
Humans
;
Knee
;
Ligaments
;
Magnetic Resonance Imaging*
;
Menisci, Tibial
;
Prevalence
;
Retrospective Studies
;
Sensitivity and Specificity
;
Spine
;
Tibia
7.A Study on the Anatomy of the Coronary Arteries of Korean Adults by Selective Coronary Angiography.
Woong Ku LEE ; Sung Jung PARK ; Sung Kyu HA ; Won Heum SHIM ; Seung Yun CHO ; Heung Jae CHOI
Korean Circulation Journal 1983;13(2):349-354
With the recent increase of coronary artery disease in Korea, coronary arteriography israpidly gaining importance as a diagnostic procedure in the management of ischemic heart disease in this country. In order to delineate normal angiographic anatomy of the coronary arteries in Korean adults, the author reviewed 63 normal or near normal coronary angiograms out of 113 consecutive cases done at the cardiac laboratory of Yonsei University Severance Hospital from February, 1976 through September, 1982 and obtained the following results. 1) The diameter of the main stems of the left and the right coronary arteries measured 2.7-6.3mm(mean, 4.0mm) and 2.1-6.0mm(mean, 3.6mm) respectively, and the length of the left main stem measured 0-23mm(mean, 9.3mm). 2) The conus branch was visualized to originate from the proximal right coronary artery in 50 cases(79.4%), and in the other 13(20.6%) in whom the conus branch was not visualized, it was assumed to have a separate ostium directly from the aortic root. 3) The sinus node artery originated from the right coronary artery in 35 cases(55.5%) and from the left circumflex 20(31.7%). The remaining 8 cases(12.7%) appeared to have dual blood supply. 4) The artery to the A-V node arose from the proximal part of the posterior descending artery as a branch of the right coronary artery in 59 cases(93.7%) and of the left circumflex in only 4(6.3%), and the pattern of the A-V node blood supply coincided with the dominancy(crossing the crux of the heart and giving rise to the posterior descending artery) of the right or the left circumflex arteries. 5) In 33 cases(52.4%), both of the arteries to the SA and the AV nodes arose from the right coronary, and in 19(30.2%), the SA node artery came from the right, whereas the AV node artery originated from the left circumflex. 6) The number of ramifications(furcation) of the main left coronary artery was two in 53 cases(83.1%), three in 9(14.3%), and four in 1(1.6%). 7) The number of diagnoal branches of the left anterior descending artery was one in 34 cases(54%), two in 28(44.4%) and 3 in 1(1.6%).
Adult*
;
Angiography
;
Arteries
;
Atrioventricular Node
;
Conus Snail
;
Coronary Angiography*
;
Coronary Artery Disease
;
Coronary Vessels*
;
Heart
;
Humans
;
Korea
;
Myocardial Ischemia
8.The Emerging Crisis of Stakeholders in Implant-based Augmentation Mammaplasty in Korea
Jae Hong KIM ; Nam-Sun PAIK ; Sang Yu NAM ; Younghye CHO ; Heung Kyu PARK
Journal of Korean Medical Science 2020;35(15):e103-
Background:
Korea is no longer safe from the risk of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL); the first reported case was a Korean woman in her 40s who had a 7-year-history of receiving an implant-based augmentation mammaplasty using a textured implant. We conducted this study to discuss the emerging crisis of stakeholders in implant-based augmentation mammaplasty and to propose a multi-disciplinary approach to early detection of its complications.
Methods:
We analyzed medical examination data that was collected from patients who visited us between August 12 and September 27, 2019. We evaluated a total of 114 women (n = 114) in the current study. They were evaluated for whether they were in healthy condition. Moreover, their baseline characteristics were also examined; these included age, gender, height (cm), weight (kg), duration since surgery (years), possession of a breast implant card, the site of surgical incision, side of symptoms and reasons for outpatient visit. Furthermore, the patients were also evaluated for their subjective awareness of the manufacturer, surface and shape of the breast implant. Potential complications include malrotation, folding, seroma, capsule thickening, upside-down rotation, rupture, capsule mass and breast mass.
Results:
A majority of the patients had a past history of receiving textured implants. The corresponding percentage was 78.95% (90/114) and 85.09% (97/114) based on their subjective awareness of a breast implant and sonographic findings, respectively. That is, it was slightly increased with the use of a breast ultrasound.
Conclusion
Here, we propose the following approaches. First, patient data should be prospectively collected. By tracking outcomes and complications of an implant-based augmentation mammaplasty, both high-quality care and patient safety can be ensured. Second, stakeholders in implant-based augmentation mammaplasty should collaborate with customers and regulatory authorities. Third, surgeons should consider applying imaging modalities for early detection of postoperative complications.
9.Nonsimultaneous Bilateral Internal Oblique Muscle Rupture in a Professional Baseball Batter: A Case Report
Heung Sub SHIN ; Hyung Lae CHO ; Hong Ki JIN ; Won Kyu JANG
The Korean Journal of Sports Medicine 2023;41(4):246-249
Abdominal oblique muscle injuries are relatively common in professional baseball players and can result in substantial loss of playing time. It is usually caused by a sudden movement of the torso in sports involving repetitive activity requiring trunk rotation and it tend to occur on the contralateral side of the dominant arm. We report a unique case of sequentially occurred bilateral abdominal internal oblique muscle rupture in a right-handed professional baseball batter over two seasons. Each internal oblique rupture had a different mechanism of the injury, the non-dominant side occurred during bat swing and the dominant side during bent leg sliding. After rest and rehabilitation, each injury was recovered to play in about 1 month.
10.Latarjet Procedure Screw Guide Designed with a 3.5 mm Locking Compression Plate Piece: Technical Note
Heung Sub SHIN ; Hyung Lae CHO ; Hong Ki JIN ; Won Kyu JANG
The Journal of the Korean Orthopaedic Association 2024;59(2):148-153
Traditional soft tissue Bankart repair has high failure rates in the setting of a critical glenoid bone defect in recurrent shoulder dislocation.Hence, coracoid transfer, particularly the Latarjet procedure, can be performed to reduce the recurrence. A commercialized guide can be used during the Latarjet procedure. On the other hand, it is difficult to handle the guide parallel to the glenoid articular surface because of the predetermined fixed direction of the guide, and the guide pin is so thin that it can be broken in the wrong direction of insertion. Screw holes can also be drilled using the free hand technique without a guide, but it is inaccurate in maintaining a parallel direction or constant spacing between the screw holes. This study devised an instrument by cutting a 3.5 mm locking compression plate used in fracture surgeries, and the Latarjet procedure was performed relatively easily.