1.Clinical review of surgical procedures in patients over 65 years of age.
hyun hun SHIN ; Dae Hwa CHOI ; Chang Woo LEE
Journal of the Korean Surgical Society 1993;44(6):839-846
No abstract available.
Humans
2.Nasal reconstruction with various flaps: case report.
Jong Woo CHOI ; Sang Hun CHUNG ; Chong Kun LEE ; Sang Tae AHN ; Poong LIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(2):265-273
No abstract available.
3.A Case of Esophageal Obstruction Complicated in a Patient with Chronic Granulomatous Disease: Esophageal obstruction in Chronic Granulomatous Disease.
Ji Soo KIM ; Jinsol HWANG ; Young Hun CHOI ; Woo Sun KIM ; Joong Gon KIM
Korean Journal of Pediatric Infectious Diseases 2014;21(1):53-58
Chronic granulomatous disease (CGD) is an inherited immunodeficient disease characterized by recurrent infections and granuloma formation. Granulomatous obstruction of esophagus is one of the rare complications of CGD. The use of steroids and antimicrobials for esophageal obstruction by granuloma in CGD patients has been controversial due to the possibility of concomitant inapparent infection. We report a case of esophageal obstruction in an 8-year-old CGD patient showing the poor response to antibiotics therapy. However, dramatic improvement of symptoms and radiologic findings of esophageal obstruction were achieved after steroid therapy. One month after discontinuation of steroid, esophageal obstruction recurred and the patient was re-treated with steroid. After that time, he experienced one more recurrence of esophageal obstruction. This symptom subsided after antibiotics therapy without steroid and he has been followed up to the present without further relapse.
Anti-Bacterial Agents
;
Child
;
Esophageal Stenosis
;
Esophagus
;
Granuloma
;
Granulomatous Disease, Chronic*
;
Humans
;
Recurrence
;
Steroids
4.The effect of serum from patients with endometriosis on mouse embryo development in vitro.
Jae Ho CHOI ; Gill Woo LEE ; Sang Hun CHA ; Tae Ho CHO
Korean Journal of Obstetrics and Gynecology 1993;36(7):1554-1560
No abstract available.
Animals
;
Embryonic Development*
;
Embryonic Structures*
;
Endometriosis*
;
Female
;
Humans
;
Mice*
;
Pregnancy
5.Dual Plate Fixation for Displaced Transverse Fracture of the Lower Sacrum
Dong-Hyuk CHOI ; Ji-Hun PARK ; Seong-Woo SHIM ; Yong-Soo CHOI
The Journal of the Korean Orthopaedic Association 2020;55(2):178-182
Isolated fractures of lower sacrum are commonly treated conservatively in most cases because of low energy damage and stable fracture. However, surgical treatment is required in displaced unstable fracture. But the surgical technique is not established and even case reports are not common. We reported a case of displaced transverse fracture of the lower sacrum that was treated with an open reduction and dual plate fixation.
6.Learning Curve of the Direct Anterior Approach for Hip Arthroplasty
Dong Hun HAM ; Woo Chull CHUNG ; Byeong Yeol CHOI ; Jong Eun CHOI
The Journal of the Korean Orthopaedic Association 2020;55(2):143-153
Purpose:
To evaluate the timing of the improvement in surgical skills of the direct anterior approach for hip arthroplasty through an analysis of the clinical features and learning curve in 58 cases.
Materials and Methods:
From November 2016 to November 2018, 58 patients, who were divided into an early half and late half, and underwent hip arthroplasty by the direct anterior approach, were enrolled in this retrospective study. The operation time and complications (fracture, lateral femoral cutaneous nerve injury, heterotopic ossification, infection, and dislocation) were assessed using a chi-square test, paired t-test, and cumulative sum (CUSUM) test.
Results:
The mean operation times in total hip arthroplasty (26 cases) and bipolar hemi-arthroplasty were 132.1 minutes and 79.7 minutes, respectively, demonstrating a significant difference between the two groups. CUSUM analysis based on the results revealed breakthrough points of the operation time, decreasing to less than the mean operation time because of the 16th case in total hip arthroplasty and 14th case in bipolar hemiarthroplasty. Complications were encountered in the early phase and late phase: five cases of fractures in the early phase, no case in the late phase; eight and two cases of lateral femoral cutaneous nerve injury, respectively; three and two cases of heterotopic ossification, respectively; and one case of dislocation, one case of infection and three cases of others in the early phase. The CUSUM chart for the fracture rate during operation in the early phase revealed the following: five cases fracture (17.2%) in the early phase and no case in the late phase (0%). This highlights the learning curve and the need for monitoring the inadequacy of operation based on the complications.
Conclusion
Hip arthroplasty performed by the direct anterior approach based on an anatomical understanding makes it difficult to observe the surgical field and requires a learning curve of at least 30 cases.
7.Variability and application of VEP components in Transient VEP and Steady VEP.
Byoung Woo SOHN ; Chung Woo KIM ; Tae Hun CHOI ; Kyu Ryong CHOI
Journal of the Korean Ophthalmological Society 1991;32(12):1123-1129
Before VEP use in clinics, we studied in statistical significance between borh eyes, intrasubject varciabilty intersubject variability (between incdividul) and changes of VEP cmponents between ignorance and attention in losujects (20eyes). There was no statistically significant difference between both eyes in each component of VEP and the variability of intersubjects was larger than that of intrasubjects. The smallest variability of intersubject was N1, P1 latency and that of intrasubject was PI latency in each component of VEP. When subjects were ignored, N1-P1, P1-N2 and steady VEP amplitude decreased significantly but N1, P1 and N2 latency were no significant difference.
8.Case of an Ectopic Pancreas in the Stomach and Presenting as a Cystic Abscess.
Hun CHOI ; Won Woo KIM ; Hae Mung JEON ; Eung Kook KIM
Journal of the Korean Surgical Society 2000;58(3):438-441
The case of a 27-year-old woman with an ectopic pancreas in the stomach, presenting as a cystic abscess formation, is presented. Physical examination revealed severe epigastric pain with a high fever. Laboratory data showed leukocytosis. A computed tomographic (CT) scan demonstrated a cystic mass adjacent to the gastric antrum. Endoscopy disclosed a submucosal mass at the antrum. With the diagnosis of a cystic mass laying near the gastric antrum, a laparoscopic approach was taken initially. An inflammatory abscess containing a cystic mass was found at the gastric antrum, so a partial gastrectomy was performed. Histological examination revealed an ectopic pancreas with cystic abscess formation. A review of the literature published in English showed that this case was an example of a rarely reported complicated change of an ectopic pancreas in the stomach.
Abscess*
;
Adult
;
Diagnosis
;
Endoscopy
;
Female
;
Fever
;
Gastrectomy
;
Humans
;
Leukocytosis
;
Pancreas*
;
Physical Examination
;
Pyloric Antrum
;
Stomach*
9.The Effect of Atrial Repolarization Waves on the Maximal Exercise Loading Test.
Jong Soo CHOI ; Gee Ho KIM ; Moo In PARK ; Byung Hun YUNN ; Seung Jae JOO ; Jae Woo LEE
Korean Circulation Journal 1993;23(6):843-850
BACKGROUND: The atrial repolarization waves might contribute to ST segment depression during the exercise loading test. As atrial repolarization waves are opposite in direction to P waves, they could shift the ST segment in the absence of myocardial ischemia. METHODS: The exercise test in 20 patients was seemed false positive because of normal coronary angiogram. Twenty-six patients with at least one coronary stenosis > or =50% served as a true positive group. The P waves, PR segments and ST segment were studied in leads II, III, aVF and V4 to V6 in those 46 patients whose exercise ECG suggested ischemia. RESULTS: The finding of steeply downsloping PR segment, particularly in the inferior ECG leads, in patients with longer exercise time and higher exercise heart rate might predict a false positive exercise test in those with a normal rest ECG and no apparent reason for a false positive test. The combination of downsloping PR segments in two of three inferior leads plus either exercise duration > or =5 min or peak heart rate > or =130 bests/min idenified false positive tests with a sesitivity of 75% and a specificity of 81% to 89%. CONCLUSIONS: Atrial repolarization waves might play a role in exercise induced ST segment depression.
Coronary Stenosis
;
Depression
;
Electrocardiography
;
Exercise Test
;
Heart Rate
;
Humans
;
Ischemia
;
Myocardial Ischemia
;
Sensitivity and Specificity
10.Clinical Results of 3M Multifocal Intraocular Lens.
Woo Jeong CHOI ; Yong Je KIM ; Kyoung Hun LEE
Journal of the Korean Ophthalmological Society 1992;33(1):49-54
We followed up the 100 patients (104 eyes) who had undergone cataract extraction and PCL implantation into the bag with 3M diffractive multifocal intraocular lensee for at least 2 month, in order to evaluate the function of this lens. 92 eyes (88.5%) had the far corrected vision more than 0.5 and 94 eyes (90.4%) had the near vision with far correction more than J3. We added additional adds (-0.25, +0.25, +0.50, +0.75D) in order to ascertain the adequacy of +3.50D add in this lens and it was found that the additional add of +0.75D was most preferred. This means that more add is necessary for near vision. There was, also, no more remarkable side effects or difficulties associated with this lenses. So, multifocal Intraocular lenses enable good near vision without any severe disadvatages but the amount of near add is cuntroversial.
Cataract Extraction
;
Humans
;
Lenses, Intraocular*