2.A Case of Anti-Wr(a) with Anti-E.
Sung Lan CHANG ; Jong Pil KIM ; Byung Chan CHOI ; Hwa Ryung CHUNG ; Deok Ja OH ; Tae Hyun UM
Korean Journal of Blood Transfusion 2005;16(2):246-249
Authors found a case of anti-Wr(a) with anti-E antibody in 67 years old female patient. Anti-Wr(a) in Korea was reported for the first time in 2005. Anti-Wr(a) has been associated with hemolytic transfusion reaction (HTR) and hemolytic disease of the newborn (HDN). It is necessary to study the incidence of Wr(a) antigen and anti-Wr(a) in Korea.
Aged
;
Blood Group Incompatibility
;
Female
;
Humans
;
Incidence
;
Infant, Newborn
;
Korea
3.Factors Influencing the Time to Full Enteral Feeding in Very Low Birth Weight Infants.
Sung Woo JOO ; Jun Sun LEE ; Kyong Lan SON ; Suk Joo KIM ; Chang Yee CHO ; Young Youn CHOI
Journal of the Korean Society of Neonatology 2001;8(1):10-17
PURPOSE: We investigated the factors influencing the time to reach full enteral feeding in very low birth weight infants. We compared the days of life to start tube or oral feeding, to regain birth weight, and to establish full enteral feeding in very low birth weight infants and determined the risk factors delaying full enteral feeding. METHODS: We reviewed the medical records of 214 newborn infants less than 1,500 g at birth, who were delivered at Chonnam National University Hospital from January 1, 1997 to May 31, 2000. These infants were divided into three groups by birth weight (less than 1,000 g, 1,000-1,249 g, and 1,250-1,499 g). Gestational age, birth weight, the days of life to start first tube or oral feeding, to regain bith weight and to reach full enteral feeding, and the possible risk factors delaying the progress of enteral feeding were analyzed. RESULTS: The gestational age was 29.69+/-2.33 weeks and the birth weight was 1,212+/-194.3 g. The time to start tube or oral feeding, to regain birth weight, and to establish full enteral feeding were significantly later and longer in the lower birth weight group. The time to reach full enteral feeding was related to the duration of mechanical ventilation and oxygen therapy, and was significantly longer in the infants with severe respiratory distress syndrome (RDS), chronic lung disease (CLD), apnea, intraventricular hemorrhage (IVH), cystic periventricular leukomalacia, sepsis/disseminated intravascular coagulopathy, ricketts, and total parenteral nutrition. CONCLUSION: The time to reach full enteral feeding was inversely related to the birth weight, and the risk factors for delayed full enteral feeding were the presence and/or the severity of diseases related to the prematurity such as the duration of mechanical ventilation and oxygen therapy, RDS, CLD, apnea, IVH, and sepsis.
Apnea
;
Birth Weight
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Enteral Nutrition*
;
Gestational Age
;
Hemorrhage
;
Humans
;
Infant*
;
Infant, Newborn
;
Infant, Very Low Birth Weight*
;
Jeollanam-do
;
Leukomalacia, Periventricular
;
Lung Diseases
;
Medical Records
;
Oxygen
;
Parenteral Nutrition, Total
;
Parturition
;
Respiration, Artificial
;
Risk Factors
;
Sepsis
4.Endovenous Radiofrequency Ablation using Stent-type Electrode for Varicose Veins: an Experimental Study in Goats.
Je Hwan WON ; Young Lan KWAK ; Jae Ho HAN ; Chang Kwon OH ; Sung Il PARK
Journal of the Korean Radiological Society 2004;51(4):433-439
PURPOSE: The purpose of this study was to investigate the feasibility and the optimal conditions of radiofrequency (RF) ablation by using the stent-type electrode upon the saphenous vein of goats for the endovenous treatment of varicose veins. MATERIALS AND METHODS: A self-expandable nitinol stent electrode (6 mm diameter, 2 cm length, cell size; 1.3x2 mm) was designed to expose the distal 1cm segment to allow for contact with the venous wall. The proximal part of the electrode was connected to the RF generator by insulated copper wires located within the stent electode introducer. Initially, to optimize the power setting, ablation of 6 saphenous veins in 3 goats was performed with power settings of 10, 20 and 30 W. Pull back rate of the electrode was 2 and 4 cm/min for each power level, respectively. The goats were sacrificed 4-6 weeks later and histologic examinations of the saphenous veins were done. For the second part of the experiment, RF ablation of 4 saphenous veins from 2 goats was done by applying the optimal power, based upon the first examination; these procedure was performed with variable pull back rates. Again, the goats were sacrificed 1-6 weeks later and histologic examinations were done. RESULTS: Endovenous ablation of the goat saphenous veins at 20 W caused complete obliteration without complication. There was incomplete occlusion at 10 W, and there were vessel perforation, extravasation, and adjacent tissue injury at 30 W. In second part of the study, the complete circumferential obliteration of the vein was demonstrated at a pull back rate of 1 cm/min and 3 cm/min with the power of 20 W. CONCLUSION: The stent-type electrode may be useful in endovenous RF ablation for treatment of varicose veins. For stents with a diameter of 6 mm, the optional combination of 20 W of power with a pull back rate of 1-3 cm/min produced the most favorable results. Further study and clinical investigations are warranted.
Catheter Ablation*
;
Cell Size
;
Copper
;
Electrodes*
;
Goats*
;
Saphenous Vein
;
Stents
;
Varicose Veins*
;
Veins
5.Retroperitoneal Malignant Schwannoma.
In Chul SEON ; Chang Hee HAN ; Kyung Min KWAK ; Woong Kyo CHUNG ; Sung Hak KANG ; Ok Lan SIN
Korean Journal of Urology 2002;43(3):250-252
Schwannoma, also known as a neurilemmoma, neurinoma, and perineural fibroblastoma, can be either a benign or malignant tumor, arising from the associated nerve sheath. A retroperitoneal malignant schwannoma is a rare tumor. Immunohistochemical staining for S-100, leucine-7 and the myelin basic protein is useful for diagnosis. Here we report a case of retroperitoneal malignant schwannoma with a brief review of the literatures.
Diagnosis
;
Myelin Basic Protein
;
Neurilemmoma*
6.Two Cases of Anti-M of Donated Bloods Confirmed at pH 6.5.
Sung Lan CHANG ; Jong Phil KIM ; Byung Chan CHOI ; Hwa Ryung CHUNG ; Deok Ja OH
Korean Journal of Blood Transfusion 2006;17(1):77-81
Anti-M is detected at room temperature and is often found in the sera of people who have never been exposed to human red cells. In a few cases, anti-M can be detected at 37 degrees C or at the antiglobulin phase, and these antibodies can cause hemolytic diseases in newborn or hemolytic transfusion reactions. Some examples of anti-M demonstrate stronger agglutination at low pH (pH 6.5), and when they react with the red blood cells of the MM type (dosage effect). An unexpected antibody test was carried out for the routine screening of donated blood and two cases that reacted to all panel cells at 5 degrees C were found, which indicated anti-M. We repeated the unexpected antibody identification test at pH 6.5 and confirmed the presence of anti-M. The reduction of the test system pH is a useful and simple method for detecting some cases of anti-M.
Agglutination
;
Antibodies
;
Blood Group Incompatibility
;
Erythrocytes
;
Humans
;
Hydrogen-Ion Concentration*
;
Infant, Newborn
;
Mass Screening
7.A large paraovarian cyst torsion in a 73-year-old patient: case report and review of the literature.
Kylie Hae-jin CHANG ; Young Lan LEE ; Kong Ju CHOI ; Jin Young KANG ; Sung Ho PARK
Korean Journal of Gynecologic Endoscopy and Minimally Invasive Surgery 2011;23(2):99-102
Although paraovarian cysts rarely cause symptoms, they may be complicated due to massive size, torsion or internal hemorrhage from rupture. Moreover, benign or malignant neoplasms may occasionally develop in paraovarian cysts. We present a case of a 73-year-old patient who suffered from a twisted large left paraovarian cyst. The patient visited emergency room with a chief complaint of acute abdominal pain. The patient was treated with good result by laparoscopic surgery. The maximum diameter of the mass was 10cm which was twisted 3 1/2 times clockwise. In conclusion, paraovarian cysts, even in elderly patients, can reach large sizes requiring awareness of the possible complications caused by large cyst which could be treated successfully by laparoscopy.
Abdominal Pain
;
Aged
;
Emergencies
;
Hemorrhage
;
Humans
;
Laparoscopy
;
Rupture
8.Successful reconstruction using a de-epithelialized rectangular flap on a nipple necrosis site after DIEP flap-based breast reconstruction: a case report
Hyun Joon SEO ; Sung Oh PARK ; Lan Sook CHANG ; Yeon Hwan KIM ; Kyunghyun MIN
Archives of Aesthetic Plastic Surgery 2022;28(4):156-160
Postmastectomy nipple necrosis is a factor that leads to a poor aesthetic outcome in breast reconstruction because of the unique projective structure of the nipple. We present a case of successful nipple reconstruction using a de-epithelialized rectangular flap. A 45-year-old woman was diagnosed with left breast cancer. She had a vertical scar below the nipple-areolar complex due to previous reduction mammoplasty. She underwent nipple-sparing mastectomy, breast reconstruction with a deep inferior epigastric artery perforator (DIEP) flap, and contralateral reduction. After the operation, the nipple gradually necrotized, and full-thickness nipple necrosis was observed on postoperative day 12. For nipple reconstruction, we designed a 38×23 mm rectangular flap from the DIEP flap considering the contralateral nipple diameter (12 mm), protrusion (2 mm), and ipsilateral mastectomy skin flap thickness (15 mm). The area in contact with the mastectomy skin flap was placed in the defect area after de-epithelialization. The reconstruction was successful and the nipple survived with a slight loss of projection. When unexpected nipple necrosis occurs after DIEP-based breast reconstruction, designing a de-epithelialized rectangular flap using the DIEP flap tissue is a feasible reconstructive method to consider.
9.Salvage of an exposed cranial prosthetic implant using a transposition flap with an indwelling antibiotic irrigation system
Sung Oh HWANG ; Lan Sook CHANG
Archives of Craniofacial Surgery 2020;21(1):73-76
Cranial implant removal is recommended if implants become exposed owing to scalp necrosis after cranioplasty. However, it carries the risk of extensive bleeding, and the resultant cranial defects can cause both aesthetic and functional problems. We present a case of a scalp defect exposing a cranial prosthetic implant that was reconstructed with a local flap and salvaged using an indwelling antibiotic irrigation system. A 73-year-old man presented with scalp necrosis after undergoing cranioplasty due to intracranial hemorrhage. The cranial implant was exposed through the scalp defect. Methicillin-resistant Staphylococcus aureus was detected in the culture from the open wound. After debridement of the necrotic tissue and burring of the superficial layer of the implant, a transposition flap was used to cover the defect and an indwelling antibiotic irrigation system was installed. Continuous irrigation with vancomycin was conducted for 5 days, and intravenous vancomycin was continued for 4 weeks. The flap was in good condition at 4 months postoperatively, with no infection. The convex contour of the scalp was well maintained. The patient’s neurological status was stable. Exposed cranial implants can be salvaged with continuous antibiotic irrigation as an alternative to implant removal; thus, the risk of bleeding and possible disfigurement may be avoided.
10.Specific identification of herpes simplex virus in human esophagus with rapid in situ hybridization in 5 cases.
Ying-Lan GAO ; Sung-Sun KIM ; Chang-Woo HAN ; Yoo-Duk CHOI ; Jong-Hee NAM ; Sang-Woo JUHNG ; Jun-Shuo JIN ; Ling-Fei KONG ; Chang-Soo PARK
Chinese Medical Sciences Journal 2008;23(2):126-128
Aged
;
Aged, 80 and over
;
Esophagus
;
pathology
;
virology
;
Herpes Simplex
;
diagnosis
;
genetics
;
pathology
;
Humans
;
In Situ Hybridization
;
Male
;
Middle Aged
;
Simplexvirus
;
genetics