2.Comparison of Various Doppler Echocardiographic Methods for Estimation of Pulmonary Artery Pressure.
Jae Hwa OH ; Hyang Suk YOON ; Jin Won JEONG
Korean Circulation Journal 1995;25(4):820-829
BACKGROUND: Noninvasive estimation of pulmonary artery pressure is an important component of echocardiographic studies. A number of methods are available for estimation of pulmenary pressure, each with varying degrees of reported accuracy. To assess accuracy and difficulties, noninvasive pulmonary artery pressure estimates were performed in infants and children with congenital heart diseases. METHODS: Noninvasive estimates from 8 methods were compared with catheterization measurements. Systolic pressure was estimated by the Burstin method and from perak tricuspid regurgitation velocity, and also from systolic pressure gradients through the VSD(ventricular septal defect) and PDA(patent ductus arteriosus). Mean pressure was estimated by acceleration time divided by ejection time measured from Koppler spectrum obtained at the right ventricular out flow tract. Diastolic pressure was estimated from pulmonary regurgitation velocity spentrum at end-diastolic, and also from diastolic pressure gradient through the patent ductus arteriosus. RESULTS: IN systolic pressure, Burstin and tricuspid regurgitation velocities estimates correlated significantly(r=0.92, 0.90 respectively), whereas VSD and PDA estimates correlated less well with catheterization estimates(r=0.83, 0.65 respectively). The mean pressure, measured from RVOT(right ventricular outflow tract) Doppler spectrum corresponded well with catheterization pressure(r=0.89), whereas those obtained from the main pulmonary artery correlated less well(r=0.74). The diastolic pressure estimates from pulmonary regurgitation velocity spectrum, revealed good correlation(r=0.79), but those from diastolic Doppler spectrum at PDA correlated less well with catheterization estimates(r=0.63). CONCLUSION: All of eight Doppler echocardiographic methods seemed to be easily performable for estimation of pulmonary artery pressure. But, the degree of accuracy was variable. Because a pressure estimante from only a single method may be in error, care should be taken in combining use of other(one or two) methods.
Acceleration
;
Blood Pressure
;
Catheterization
;
Catheters
;
Child
;
Ductus Arteriosus, Patent
;
Echocardiography*
;
Echocardiography, Doppler
;
Heart Diseases
;
Humans
;
Infant
;
Pulmonary Artery*
;
Pulmonary Valve Insufficiency
;
Tricuspid Valve Insufficiency
3.Two Cases of Cutaneous Cytomegalovirus Infection in Immunocompromised Patients.
Jae Hong PARK ; Jeong Joon OH ; Eil Soo LEE
Annals of Dermatology 2004;16(2):67-70
Cytomegalovirus (CMV) is a major cause of morbidity and mortality in immunocompromised patients. CMV can cause pneumonia, retinitis, gastrointestinal ulcers, and widely disseminated disease, but cutaneous CMV is rare. We report two cases of cutaneous CMV infection presenting as perianal ulcers. A 54 year-old male who had liver transplantation and a 72-year-old male, who was treated with chemotherapy for angioimmunoblastic T-cell lymphoma, presented with perianal ulcers and had systemic symptoms of CMV infection with CMV antigenemia. They had multiple ulcerations with erythematous bases on the perianal area, and histopathologic examinations showed large atypical cytomegalic cells in the dermis, and immunohistochemical stains, with the anti-CMV antibody showed positive reactions.
Aged
;
Coloring Agents
;
Cytomegalovirus Infections*
;
Cytomegalovirus*
;
Dermis
;
Drug Therapy
;
Humans
;
Immunocompromised Host*
;
Liver Transplantation
;
Lymphoma, T-Cell
;
Male
;
Mortality
;
Pneumonia
;
Retinitis
;
Ulcer
4.Knowledge on the Disinfection among Nurses in the Hospital.
Ihnsook JEONG ; Kesun YOO ; Jae Sim JEONG ; Oksun KIM ; Hyangsoon OH
Korean Journal of Nosocomial Infection Control 2002;7(1):31-40
BACKGROUND: This study was aimed to assess the level of knowledge on the disinfection among nurses in the hospital. METHODS: Data was collected from the nurses who participated in an educational meeting of Korean Association of Infection Control Nurses for two days from July 7 to 8 in 2000. Seventy nurses (58.3%), among 120 participants. were answered to the 32 item questionnaire which was developed to test the level of knowledge in different types of disinfection. The correct answers for each item were computed and the rate of the total correct answer was dichotomized and compared at the level of 60% correct answer to identify the respondent's characteristics which affect the knowledge on the disinfection. RESULTS: The percent of the correct answer was 60.0% in total. 63.4% for the disinfectants general; 59.4% for the disinfection of skin: 57.6% for the disinfection of devices: 63.9% for the disinfection of endoscopies, and 55.1% for the disinfection of environments. The percent of correct answer was significantly higher among the nurses who participated in the educational programs on the disinfection previously (p=0.006), as well as the nurses who are at the infection control office or at the quality improvement department compared to other areas in the hospital (p=0.001). CONCLUSIONS: This study indicates that the level of knowledge about the disinfection was low with only 63% of the correct rate in total. We perceive that more educational programs and manuals on the use of disinfectants in a hospital setting is urgently required.
Disinfectants
;
Disinfection*
;
Infection Control
;
Quality Improvement
;
Surveys and Questionnaires
;
Skin
5.A Case of Zosteriform Pilar Leiomyoma.
Jeong Joon OH ; Jae Hong PARK ; Soo Hong KIM ; Eil Soo LEE
Annals of Dermatology 2003;15(3):128-131
Cutaneous pilar leiomyomas are benign, often painful, smooth muscle tumors that usually present as red-brown nodules. They are usually multiple and commonly found on the extensor aspects of the arm, trunk, and face. Multiple lesions may be grouped or widespread. They are rarely distributed in a linear fashion or seem to follow a dermatome. We report a 54-year-old woman with multiple pilar cutaneous leiomyomas distributed in a zosteriform pattern on her right trunk.
Arm
;
Female
;
Humans
;
Leiomyoma*
;
Middle Aged
;
Smooth Muscle Tumor
6.The reasonable timing of the adjuvant radiotherapy in the treatment of uterine carcinosarcoma according to the surgical intent: suggestion based on progression patterns.
Jeong Il YU ; Doo Ho CHOI ; Seung Jae HUH ; Won PARK ; Dongryul OH ; Duk Soo BAE
Radiation Oncology Journal 2013;31(2):72-80
PURPOSE: We designed this study to identify and suggest the reasonable timing of adjuvant radiotherapy in the treatment of uterine carcinosarcoma according to the surgical intent and patterns of progression. MATERIALS AND METHODS: We retrospectively analyzed a total of 50 carcinosarcoma patients diagnosed between 1995 and 2010. Among these 50 patients, 32 underwent curative surgery and 13 underwent maximal tumor debulking surgery. The remaining five patients underwent biopsy only. Twenty-six patients received chemotherapy, and 15 patients received adjuvant radiotherapy. RESULTS: The median follow-up period was 17.3 months. Curative resection (p < 0.001) and stage (p < 0.001) were statistically significant factors affecting survival. During follow-up, 30 patients showed progression. Among these, eight patients (16.0%) had loco-regional progression only. The patients who had received adjuvant radiotherapy did not show loco-regional progression, and radiotherapy was a significant negative risk factor for loco-regional progression (p = 0.01). The time to loco-regional progression was much earlier for non-curative than curative resection (range, 0.7 to 7.6 months vs. 7.5 to 39.0 months). CONCLUSION: Adjuvant radiotherapy in the treatment of carcinosarcoma might be related to a low loco-regional progression rate. Radiotherapy should be considered in non-curatively resected patients as soon as possible.
Biopsy
;
Carcinosarcoma
;
Follow-Up Studies
;
Humans
;
Radiotherapy, Adjuvant
;
Retrospective Studies
;
Risk Factors
7.Cutaneous Leiomyoma of the Nipple in a Male.
Jeong Joon OH ; Jae Hong PARK ; Dong Youn LEE ; Eil Soo LEE
Annals of Dermatology 2004;16(1):16-18
Cutaneous leiomyoma is a benign tnmor originating from smooth muscle fibers which are derived from arrector pili muscle, media of blood vessels and dartoic muscle of scrotum, vulvar, or nipple. It is classified into 3 types according to the site of origin, namely pilar leiomyoma, angioleiomyoma and genital leiomyoma. Leiomyoma of the nipple is the less kquent type of cutaneous leiomyoma. We report a case of cutaneous leiomyoma on the nipple in a 53-year-old man.
Angiomyoma
;
Blood Vessels
;
Humans
;
Leiomyoma*
;
Male*
;
Middle Aged
;
Muscle, Smooth
;
Nipples*
;
Scrotum
8.A Clinical Study of Recurrent Intussusception.
Hae Ok KIM ; Jae Oh KIM ; Jeong Woo SUK ; Keun Chan SOHN
Journal of the Korean Pediatric Society 1981;24(12):1173-1184
No abstract available.
Intussusception*
9.Bulbous Tip Correction Focusing on Skin Soft Tissue Envelope in Asian Rhinoplasty.
Da Arm KIM ; Jae Yong JEONG ; Sang Ha OH
Archives of Aesthetic Plastic Surgery 2014;20(3):140-147
BACKGROUND: Correction of a bulbous tip is a difficult procedure in Asians, because their lower lateral cartilage is relatively small and structurally weak to support the thick skin soft tissue envelope (SSTE). Therefore, lower lateral cartilage manipulation alone yields inadequate bulbous tip correction. In this study, authors aim to provide a new bulbous tip definition reflecting nasal tip SSTE and categorization with a suitable surgical procedure. METHODS: One hundred sixty-three patients with tip rhinoplasty between January 2009 and December 2012 were studied who had a tip lobular width greater than 60% of the alar base width. Depending on cartilage size and characteristics of the nasal tip superficial musculoaponeurotic system (SMAS) with SSTE thickness, the following classifications were made: Group I: thin SSTE with a large lower lateral cartilage, Group II: thick SSTE with a small lower lateral cartilage, Group IIa: thick SSTE with loose SMAS, and Group IIb: thick SSTE with dense SMAS. We evaluated the degree of surgical improvement by comparing pre- and postoperative photographs. RESULTS: After comparing pre- and postoperative photos, we observed improvements in tip bulbosity by 11.7% in Group I (n=41), 11.9% in Group IIa (n=64), and 7.1% in Group IIb (n=58). CONCLUSIONS: In Asians, nasal tip bulbosity is often due to excess SSTE. Therefore, a bulbous tip should be defined and evaluated based on its underlying SSTE. Adequate soft tissue resection in addition to lower lateral cartilage support and manipulation are warranted to achieve a refined tip.
Asian Continental Ancestry Group*
;
Cartilage
;
Classification
;
Humans
;
Rhinoplasty*
;
Skin*
10.Microsatellite Instability and hMSH2 Gene Mutations in Sporadic Colorectal Cancers.
Hae Myung JEON ; Seung Tack OH ; Jeong Soo KIM ; Suk Kyun CHANG ; Jae Sung KIM
Journal of the Korean Society of Coloproctology 1998;14(1):41-49
Microsatellites are short nucleotide repeat sequences present throughout the human genome. Alterations of microsatellites, comprising extra or missing copies of these se quences, have been termed microsatellite instability(MSI, genetic instability, replication errors, RER(+) phenotype). To date, at least four genes involved in DNA mismatch repair, hMSH2, hMLH1, hPMS1 and hPMS2, are thought to account for the observation of microsatellite instability in tumor from Hereditary nonpolyposis colorectal cancer (HNPCC) patients. The genetic defect responsible for the MIN+ phenotype in sporadic colorectal cancer, however, has yet to be clearly delineated. The purpose of this study was to determine the presence of MSI in sporadic cancer and to correlate its occurrence with clinicopathological parameters, we have studied six microsatellite loci by use of polymerase chain reaction amplification and denaturing polyacrylamide gel electrophoresis. We found that 20%(9 of 46 cases) sporadic colorectal cancers showed RER at two or several loci(RER+). Microsatellite instability was associated with location of the tumor in the proximal colon 66%(6 of 9 cases) and with poorly differentiated tumor phenotype 56%(5 of 9 cases). In order to better understand the role of somatic alterations within hMSH2 in the process of colorectal tumorigenesis, we examined the most conserved regions(codon 598~789) of this gene in nine patients with MIN spotadic colorectal cancer. 6 patient of RER(+) colorectal ca. patients had a polymorphism which was a T to C base change in the intron sequence at -6 position of the splice acceptor site at the 5'end of exon 13. This particular sequence variation is a polymorphism rather than a mutation which increase cancer susceptability. These data suggest that the genetic instability is detect ed in some colorectal cancers and play an important role in the pathogenesis of sporadic colorectal cancer.
Carcinogenesis
;
Colon
;
Colorectal Neoplasms*
;
Colorectal Neoplasms, Hereditary Nonpolyposis
;
DNA Mismatch Repair
;
Electrophoresis, Polyacrylamide Gel
;
Exons
;
Genome, Human
;
Humans
;
Introns
;
Microsatellite Instability*
;
Microsatellite Repeats*
;
Phenotype
;
Polymerase Chain Reaction
;
RNA Splice Sites