1.Juvenile Granulosa Cell Tumor Arising in Undescended Testis: A case report.
So Ya PAIK ; Hae Youn KANG ; Jae Ho HAN ; Woo Ick YANG ; Seok Joo HAN
Korean Journal of Pathology 1999;33(5):376-379
Juvenile granulosa cell tumor is rare but one of the common congenital testicular neoplasms. Although histological features are typical of its ovarian counterpart, testicular juvenile granulosa cell tumor has a distinctly different clinical presentation. We report a case of juvenile granulosa cell tumor arising in the cryptochid testis of a 4-day-old newborn. A 6 5 5 cm sized multilocular cyst containing thick, mucinous fluid was found in the peritoneal cavity. The external surface of the cyst was smooth and the septae were relatively thin. The cyst consisted of numerous mucin-filled, cystic follicles lined by cells having vacuolated cytoplasm and round to oval dark nuclei without grooves. Cells resembling granulosa cells of an ovarian follicle were also observed in the intervening stroma forming irregular solid nests.
Cryptorchidism*
;
Cytoplasm
;
Female
;
Granulosa Cell Tumor*
;
Granulosa Cells*
;
Humans
;
Infant, Newborn
;
Male
;
Mucins
;
Ovarian Follicle
;
Peritoneal Cavity
;
Testicular Neoplasms
;
Testis
2.Effects of Improved Methods of Endotracheal suction and Hand Washing on Incidence of Nosocomial Pneumonia in the Neurosurgical Intensive Care Unit.
so Yeon KIM ; Ji Young LEE ; Kyung Ok CHOI ; Yang Ree KIM ; Moon Won KANG
Korean Journal of Nosocomial Infection Control 2002;7(1):13-24
BACKGROUND: This study aimed at identifying the effects of improved methods of endotracheal suction and hand washing on incidence of nosocomial pneumonia (NP) in the neurosurgical ICU. METHOD: Repeated training of nurses about hand washing and adherence of the single use of suction catheter and sterile normal saline of endotracheal suction was provided. Then hand washing compliance of nurses before and after training was investigated. and the incidence of NP in all patients hospitalized for more than 72 hours in the neurosurgical ICU was investigated from Sep 1, 2000 to Jan 31, 2001 (2nd surveillance). The NP rate of that period was compared with the incidence of the 1st surveillance period, from Sep 1, 1999 to Jan 31, 2000. The data were analyzed with chi-square-test. Fisher's exact test and logistic regression analysis by SAS 8.0. RESULT: The proportion of hand washing performance increased from 15.6% to 46.8%. The rates of NP per patient during 1st surveillance and 2nd surveillance were 10.3%, 3.9%(p=0.01) patient-days rates of NP were 10.0 cases/1,000 patient days, 4.1 cases/1,000 patient days(p=0.04), and ventilator-days rates of NP were 67.6 cases/1.000 ventilator days, 16.2 cases/1,000 ventilator days(p=0.00) respectively. Out of 29 isolates, 18 were methicillin-resistant Staphylococcus aureus, which was the most frequently isolated microorganism. The risk factors associated with incidence of NP were age, length of stay, Glasgow coma scale, diabetes mellitus, duration of intubation, insertion of endotracheal tube, duration of tracheostomy, presence of tracheostomy, duration of ventilator, use of ventilator, and insertion of nasogastric tube. CONCLUSION: These results showed that single use of suction catheters and sterile normal saline and increased compliance of hand washing were important factors to decrease the incidence of NP.
Catheters
;
Compliance
;
Diabetes Mellitus
;
Glasgow Coma Scale
;
Hand Disinfection*
;
Hand*
;
Humans
;
Incidence*
;
Intensive Care Units*
;
Critical Care*
;
Intubation
;
Length of Stay
;
Logistic Models
;
Methicillin-Resistant Staphylococcus aureus
;
Pneumonia*
;
Risk Factors
;
Suction*
;
Tracheostomy
;
Ventilators, Mechanical
3.Outbreak of Nosocomial Infections caused by Acinetobacter baumannii resistant to imipenem and Cefoperazone/Sulbactam.
Mi Young KIM ; Yeon Joon PARK ; So Yeon YOO ; Yang Ree KIM ; Moon Won KANG
Korean Journal of Nosocomial Infection Control 1997;2(2):119-130
BACKGROUND: With increase of antibiotics use and invasive procedures, infections caused by multi-resistant Acinetobacter baumannii (MRAB) are increasing. Recently, we experienced the outbreak of- nosocomial infections caused by MRAB resistant to imipenem and cefoperazone/sulbactam in intensive care units (ICU) and general ward. We analyzed the clinical characteristics of the infected patients and antibiotic susceptibility of the organisms. And surveillance cultures and IRS-PCR were performed to find out the transmission route. METHODS: We collected data from physical examination and clinical records. We performed surveillance cultures of environment, patients not infected with MRAB in ICU, and hands of health care workers. RESULTS: Between November 1996 and June 1997, 49 strains of MRAB were isolated from the 26 patients hospitalized in Kangnam St. Mary' s Hospital. The lower respiratory infection (13 cases) was the most common infection and sputum was the most common sources (47.1%). All strains of MRAB showed the same genotype. In disk diffusion test, all strains were resistant to piperacillin, gentamicin, amikacin, ceftazidime, cefoperazone/sulbactam, aztreonam, imipencm, ciprofloxacin. From the surveillance cultures, the genotypically identical strains were isolated from ventilator Y-piece, the floor of ICU, and hands of health care workers. It suggested that this strain was transmitted through ventilatory device or hands of health care workers. We instructed all the health care workers to wash hands, to disinfect hospital environment completely. Since July 1997, no further case has occurred. CONCLUSIONS: Since A. baumannii could be transmitted through ventilatory devices and the hands of health care workers, it is important to wash hands and to disinfect hospital environment completely.
Acinetobacter baumannii*
;
Acinetobacter*
;
Amikacin
;
Anti-Bacterial Agents
;
Aztreonam
;
Ceftazidime
;
Ciprofloxacin
;
Cross Infection*
;
Delivery of Health Care
;
Diffusion
;
Genotype
;
Gentamicins
;
Hand
;
Humans
;
Imipenem*
;
Critical Care Units
;
Patients' Rooms
;
Physical Examination
;
Piperacillin
;
Sputum
;
Ventilators, Mechanical
4.The Effect of Ginkgo Biloba Extract(EGb 761)on the Patency Rate after Microvascular Anastomosis on Severely Damaged Microvasculature in the Rats.
So Ra KANG ; Dong Jin LEE ; Jin Han CHA ; Yang Woo KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(3):448-452
Replantation after crush amputation has a relatively low success rate. Thrombus formation due to vessel and tissue trauma is considered as the principal cause of failure. In the laboratory and clinically, we have been tried to improve the post-anastomosis patency rate in crushed microvasculature. To accomplish this, we have usually used several anticoagulant drugs. Extracts from the leaves of Ginkgo biloba (EGb) have been used therapeutically for centuries. EGb exerts a number of pharmacologic actions. Eighty rats were control group and another 80 rats were treated with EGb 761. The femoral arteries underwent crush injury with an energy of 0.4J, and the vessles in each group were divided and anastomosed by a standard microsurgical technique. Each group was comprised as follows: (1) control group(A1,A2): group A1(n=40); intraluminal saline irrigation, group A2(n=40); intraluminal saline irrigation+heparin 40 u/ml(IV). (2) EGb 761 treated group(B1, B2): groupB1(n=40); intraluminal saline irrigation, group B2(n=40); intraluminal saline irrigation + heparin 40 u/ml(IV). At postoperative 14 days, the patency rates were; group A1 20%, group A2 77.5%, group B1 47.5%, group B2 92.5%. These results were interpreted as follows: the patency rate was significantly increased in the EGb 761-only treated group(p>0.01), the heparin-only treated group(p>0.01), and the EGb 761 and heparin-combined at crushed microvessel surgery. However the patency rate of the EGb-only treated group was significantly lower than that of the heparin-only treated group(p>0.01). And in the EGb 761 and heparin-combined treated group compared to the heparin-only treated group, there was some patency rate increase in the combined treated group, but there was no significant difference between them(p=0.060).
Amputation
;
Animals
;
Anticoagulants
;
Femoral Artery
;
Ginkgo biloba*
;
Heparin
;
Microvessels*
;
Pharmacologic Actions
;
Rats*
;
Replantation
;
Thrombosis
5.An experimental study on the effect of Ginkgo Biloba extract (EGb 761) on the healing process after weak crush injury.
So Ra KANG ; Dong Jin LEE ; Jin Han CHA ; Yang Woo KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2000;27(1):60-64
Late results of microvascular patency after crush or crush avulsion injury have been relatively poor. A key factor in the poor results may relate to the presence of damaged tissue, but the mechanism of this thrombus formation is still imcompletely understood. One current theory about the origin of thrombus after vessel trauma involves increased exposure of the subendothelial tissue to platelets that adhere and aggregate at the injury site, initiating thrombus formation. Most surgeons have usually used several anticoagulant drugs to prevent thrombosis for 2-3 weeks after trauma or microvascular repair. We thought that Ginkgo biloba extract (EGb 761), which has a number of pharmacologic actions, could promote microvasculature healing and prevent thrombosis. The femoral arteries of rats were dissected. Each group was as follows:-1. group A (n=10): intact group (not crushed vessel),2. group B (n=10); crushing injury (not EGb 761-treated group),3. group C (n=10); crushing injury (EGb 761-treated group). Group B and C underwent crush injury with the energy of 0.07J. We compared patency rate and histological examination. All arteries were patent at postoperative 14 days, and in histologic finding, group C (group with EGb 761 treatment among the crushed injury group) showed significant improvement of vascular endothelial and medial regeneration.
Animals
;
Anticoagulants
;
Arteries
;
Femoral Artery
;
Ginkgo biloba*
;
Microvessels
;
Pharmacologic Actions
;
Rats
;
Regeneration
;
Thrombosis
6.A Case of Round Ligament Pregnancy.
Eun Sun PARK ; Mi Ran KIM ; Hyun Jin KIM ; Eun Joo KANG ; So Yang PARK ; Kyeng Hwa KANG
Korean Journal of Obstetrics and Gynecology 2000;43(9):1662-1665
No abstract available.
Pregnancy*
;
Round Ligament of Uterus*
7.Outbreak of Nosocomial Urinary Tract Infections caused by Multidrug-Resistant Pseudomonas aeruginosa.
Yeon Joon PARK ; Eun Jee OH ; Gi Bum KIM ; So Yeon KIM ; Sung Taek KIM ; So Yeon YOO ; Yang Ree KIM ; Moon Won KANG ; Byung Kee KIM
Korean Journal of Nosocomial Infection Control 1999;4(1):1-6
BACKGROUND: Nosocomial urinary tract infection (UTI) accounts for 35% of the nosocomial infection and 80-90% of them are associated with urethral catheters. Recently, we experienced an outbreak of nosocomial UTI caused by multidrug-resistant Pseudomonas aeruginosa in neurosurgical intensive care unit (NSICU). METHODS: We investigated clinical records of the patients and observed the methods of care of urethral catheters in NSICU. Identification of P. aeruginose was done by API NE (API system; bioMerieux, France) and antibiotic susceptibility tests were done by disk diffusion method. Random Amplification of Polymorphic DNA (RAPD) assay was used as a genotyping method. RESULTS: Between November 1997 and January 1998, 11 P. aeruginosa strains were isolated from the urine of 11 patients hospitalized in NSICU of Kangnam St. Mary's Hospital. Routine regular bladder irrigation, and emptying urine with common urinal had been done falsely. Antibiogram of the isolates showed resistance to multiple antibiotics including imipenem, gentamicin. amikacin, piperacillin, ciprofloxacin, ceftazidime, and cefoperazone/sulbactam. RAPD of the outbreak strains showed clonal relatedness, which was different from those of other clinical strains, We instructed all the health care workers to stop bladder Irrigation, and to use the separate urinals for each patient. Thereafter, no further case of P. aeruginosa UTI has occurred. CONCLUSION: An outbreak of UTI, caused by a single clone of P. aeruginosa, was confirmed by RAPD and was eradicated after correction of false practice on care-of urinary catheter.
Amikacin
;
Anti-Bacterial Agents
;
Ceftazidime
;
Ciprofloxacin
;
Clone Cells
;
Cross Infection
;
Delivery of Health Care
;
Diffusion
;
DNA
;
Drug Resistance, Multiple
;
Gentamicins
;
Humans
;
Imipenem
;
Intensive Care Units
;
Microbial Sensitivity Tests
;
Piperacillin
;
Pseudomonas aeruginosa*
;
Pseudomonas*
;
Urinary Bladder
;
Urinary Catheters
;
Urinary Tract Infections*
;
Urinary Tract*
8.The Rectus Abdominis Flap for Reconstruction of Pressure Sores in Quadriplegia Patient.
So Min KANG ; Ji Seon CHEON ; Jung Yeol YANG ; Yang Soo KANG ; Yoon Young CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2003;30(4):420-425
A pressure sore, such as quadriplegia, is developed in patients who have been idle in bed for a long time, particularly in the spinal cord. The treatment is particularly difficult in cases of multiple recurrent sores, osteomyelitis with pathologic fractures, other underlying conditions such as diabetes mellitus, immuno-suppression, or radiotherapy. Over the last 20 years, the development and popularization of rectus abdominis flap have significantly increased for reconstruction of a wide variety of difficult clinical problems. From March 2000 to Dec 2001, 6 neurologically impaired patients underwent reconstruction of chronic pressure sores utilizing an inferiorly based rectus abdominis musculocutaneous flap. Postoperative follow-up ranged from 6 to 15 months. The average thickness of rectus abdominis muscle in quadriplegic patient is less than half of that in healthy patient. In most cases, mild venous congestions are developed, but these were resolved by medical treatment. All wounds have healed without any significant complications such as flap loss, infection, hernia, and sepsis. In conclusion, rectus abdominis muscle for these reconstructions provides a simple, reliable solution to often difficult reconstructive problem. We recommended this highly viable, versatile and reliable flap as one to be considered in planning the reconstruction of the quadriplegia patient with pressure sores when other local and regional flaps are unavailable.
Diabetes Mellitus
;
Estrogens, Conjugated (USP)
;
Follow-Up Studies
;
Fractures, Spontaneous
;
Hernia
;
Humans
;
Myocutaneous Flap
;
Osteomyelitis
;
Pressure Ulcer*
;
Quadriplegia*
;
Radiotherapy
;
Rectus Abdominis*
;
Sepsis
;
Spinal Cord
;
Wounds and Injuries
9.Surgical Correction of Macrostomia.
So Min KANG ; Jeong Yeol YANG ; Keun Hong PARK ; Ji Sun CHEON ; Yang Soo KANG
Journal of the Korean Cleft Palate-Craniofacial Association 2002;3(2):190-196
Congenital macrostomia is a result of defective union between the mandibular and maxillary processes and it is a rare deformity seen in every 100 to 300 facial clefts. Ohnizuka1`classified macrostomia into two groups as congenital and posttraumatic. We experienced two cases of acquired macrostomia due to NOMA sequelae(58/F:Lt & 51/F:Rt) and one case of congenital macrostomia (3 months/M:Rt). Many plastic surgeons have developed surgical procedures for repair of this congenital macrostomia. Among them, McCarthy6,11 described the classic commissuroplasty. We could repaired 1 case of congenital macrostomia and two cases of acquired macrostomia due to NOMA sequelae using modified technique of McCarthy,s classic commissuroplasty. McCarthy described new oral commissure 2-3mm laterally for prevention of postoperative contraction, orbicularis oris muscle transposition to restore labial function and a z- plasty cutaneous closure. But some author raise an objection to new oral commissure 2-3mm laterally, and they made new oral commissure at same distance of opposite side normal commissure. And so, we designed the new oral commissure moved 1mm laterally comparing to original commissuroplasty in a congenital case for the prevention of displacement. In cases of acquired macrostomia due to NOMA sequelae, we reconstructed new oral commissure like congenital case, moved 1mm laterally. Orbicularis oris muscle transposition could not be possible because of destruction of muscle, adhesion and atrophy. And so we dissected muscle and just sutured side by side. Acquired macrostomia following NOMA sequelae manifsted facial deformity variably, and reconstruction of the facial deformity is difficult by using simple approach. Other variable reconstructive procedures were needed with commissuroplasty as like Washio flap, rotation advancement flap, bone graft and free radial forarm flap, etc. Postoperative results were relatively good. We propose that macrostomia due to NOMA sequelae must add to Ohnizuka classification of acquired macrostomia.
Atrophy
;
Classification
;
Congenital Abnormalities
;
Macrostomia*
;
Noma
;
Transplants
10.The incidence of fetal chromosomal abnormalities in recurrent miscarriage couples with balanced translocation.
So Yeon PARK ; Kye Hyun KIM ; Bum Chae CHOI ; Inn Soo KANG ; Kwang Moon YANG ; Keun Jai YOO ; In Ok SONG
Korean Journal of Obstetrics and Gynecology 2000;43(7):1189-1193
OBJECTIVES: The most common chromosomal abnormality contributing to recurrent abortion is the balanced chromosomal translocation. However the exact incidence of fetal losses are still unknown. The objectives of this study were to evaluate the incidence of fetal chromosomal abnormalities and outcome of pregnancy in recurrent miscarriage couples with balanced translocation. DESIGN: A retrospective analysis of recurrent spontaneous abortion patients with balanced chromosomal translocation. MATERIALS AND METHODS: Cytogenetic analysis was performed in 56 couples with history of recurrent abortions from 1995 to 1999. The use of high resolution banding technique and fluorescent in situ hybridization (FISH) in the chromosomal analysis has made the precise evaluation of chromosome aberrations. RESULTS: Among 56 couples, 42 patients had reciprocal translocation and 14 had Robertsonian translocation. Chromosomal aberrations were more frequent in women (36 cases) than in men (20 cases). Prenatal cytogenetic analyses were carried out in 14 subsequent pregnancies for carrier couples with balanced translocation. The fetal karyotypes showed that 5 cases (35.7%) was normal, 8 (57.1%) were balanced translocation, and 1 (7.1%) was unbalanced translocations. And cytogenetic analyses were done on 15 subsequent chorionic villi samples of abortuses for carrier couples with balanced translocations. Fourteen of fifteen abortuses (93.3%) were abnormal karyotype. CONCLUSIONS: Although the incidence of chromosomal imbalance in the fetuses was relatively low in prenatal cytogenetic analysis, individuals with balanced translocations are predisposed to giving birth to malformed offsprings with chromosomal imbalance (partial trisomy or monosomy). Therefore we recommend preimplantation genetic diagnosis (PGD) for recurrent abortions with balanced translocation and preventing the birth of offspring with chromosomal abnormalities.
Abnormal Karyotype
;
Abortion, Habitual*
;
Abortion, Spontaneous
;
Chorionic Villi
;
Chromosome Aberrations*
;
Cytogenetic Analysis
;
Family Characteristics*
;
Female
;
Fetus
;
Humans
;
In Situ Hybridization, Fluorescence
;
Incidence*
;
Karyotype
;
Male
;
Parturition
;
Pregnancy
;
Preimplantation Diagnosis
;
Retrospective Studies
;
Translocation, Genetic
;
Trisomy