1.Extended Approach of EMR (ESD) in Stomach Cancer: Pro.
Joo Young CHO ; Weon Young CHO ; Tae Hee LEE
Journal of the Korean Gastric Cancer Association 2008;8(1):1-4
No abstract available.
Stomach
2.Clinical Analysis of 200 Renal Transplantations.
Kyeng Ha RYU ; Young Saeng KIM ; Seong Doo CHO ; Nam Weon SONG
Korean Journal of Anesthesiology 1997;33(5):944-952
BACKGROUND: Since the initial report on anesthesia for the renal transplantation from Peter Bent Brighan Hospital in 1962, the anesthesia for kidney transplantation has been reviewed and discussed by many authors. We have performed 200 renal transplantations from August 1990 to October 1996. No cadaveric donor was used and all except two cases was the first graft. METHODS: Anesthetic procedures in the recipients were as follows; 1) The recipient was dialysed within 24 hrs prior to operation. 2) Premedication was done as glycopyrrolate and fentanyl, or glycopyrrolate and diazepam. 3) Thiopental and vecuronium, or thiopental and succinylcholine were used for anesthetic induction. 4) N2O-O2-relaxant (vecuronium) with halothane or isoflurane were used for maintenance. 5) Neostigmine or pyridostigmine were also used to antagonize against the relaxant. 6) CVP was maintained around 10~17 cmH2O. RESULTS: The results were as follows; 1) The mean ages of donors and recipients were 35.3 and 37.4, respectively. The ratio of male to female of donors and recipients was 1.6 : 1 and 1.6 : 1, respectively. 2) One hundred and ten cases (55.0%) were living unrelated donors and 90 cases (45.0%) were living related donors. 3) Overall graft and patient survival rate was 96.9 and 98.0 at 1 year, 94.1 and 95.1 at 3 years. CONCLUSIONS: Most patients with renal failure have several common problems that are of significance to anesthesiologists, including anemia, bleeding tendency, electrolyte imbalance, acidosis, hypertension, hyper- or hypovolemia, and previous therapy with steroids and immunosuppressants, etc. Therefore anesthesiologists should keep in mind the risk factors above mentioned for the anesthetic management of patients with renal failure.
Acidosis
;
Anemia
;
Anesthesia
;
Cadaver
;
Diazepam
;
Female
;
Fentanyl
;
Glycopyrrolate
;
Halothane
;
Hemorrhage
;
Humans
;
Hypertension
;
Hypovolemia
;
Immunosuppressive Agents
;
Isoflurane
;
Kidney Transplantation*
;
Male
;
Neostigmine
;
Premedication
;
Pyridostigmine Bromide
;
Renal Insufficiency
;
Risk Factors
;
Steroids
;
Succinylcholine
;
Survival Rate
;
Thiopental
;
Tissue Donors
;
Transplants
;
Unrelated Donors
;
Vecuronium Bromide
3.Effects of Acetyl-L Carnitine on Recovery from Sciatic Nerve Injury in Rats.
Joo Weon CHO ; Jeong Jae LEE ; You Ree SOHN ; Young Cheun YOO ; Seog Keun YOO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(3):353-359
A possible therapeutic effect of acetyl-L carnitine (ALCAR) on peripheral nerve injuries and the expression of Jun, the protein products of immediate-early genes(IEGs), in the spinal cord were investigated after sciatic nerve injury in Sprague-Dawley rats. Experimental animals were divided into 3 groups: intact sciatic nerve as a control group, surgical repair alone, and surgical repair with ALCAR treatment. Toe-spreading response, pinprick response, and compound action potential were measured to evaluate the recovery of sciatic nerve injury. Recovery of behavioral function and electrophysiological function both improved in the surgical repair with ALCAR treatment group. Weak basal expression of Jun was shown in the ventral horn the of spinal cord in the control group. In the surgical repair alone group or the surgical repair with ALCAR treatment group, Jun expression persisted until 28 days after injury in the ventral horn of the spinal cord. Moreover, the surgical repair with ALCAR treatment group showed more increased expression of Jun than the surgical repair alone group. These results suggest that ALCAR facilitates the functional recovery after peripheral nerve injury.
Acetylcarnitine
;
Action Potentials
;
Animals
;
Carnitine*
;
Horns
;
Peripheral Nerve Injuries
;
Rats*
;
Rats, Sprague-Dawley
;
Sciatic Nerve*
;
Spinal Cord
4.A Case Report of Pseudoxama Elasticum of the Neck: Surgical Excision and The Effect of Laserbrasion.
Joo Weon CHO ; Jeong Jae LEE ; You Ree SOHN ; Seok Keun YOO ; Young Cheun YOO
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(4):739-742
Pseudoxanthoma elasticum (PXE) is an uncommon heritable disorder of elastin characterized by cutaneous, ocular and vascular abnormalities. Typical skin lesion shows yellowish papules and redundant skin folds on the neck, axilla and groin due to degeneration and calcification of elastic fibers in deep dermis. As in all heritable disorders of connective tissue, no curative therapy is presently know. Redundant and unsightly skin folds about the neck can be improved by surgery, but irregular papular lesion on skin does not improved by surgery. A-44-year-old female who had a skin lesion and angioid streak was treated as follows: Skin folds on the neck were excised successfully without any significant problem such as intraoperative bleeding, wound dehiscence or hypertrophic scar formation. To evaluate whether we could smooth the irregular skin surface due to multiple papules, laserbrasion with a SLT contack Nd:YAG laser system was performed experimentally on a limited area which was located on the right supracla-vicular area about 2 x 3cm in size. An acceptable aesthetic appearance was achieved with surgical excision 12 months after the operation. Biopsy of the laserbrasion site revealed disappearance of the calcium deposit. This study emphasizes the possibility of using laserbrasion in solving troblesome skin lesion of the PXE.
Angioid Streaks
;
Axilla
;
Biopsy
;
Calcium
;
Cicatrix, Hypertrophic
;
Connective Tissue
;
Dermis
;
Elastic Tissue
;
Elastin
;
Female
;
Groin
;
Hemorrhage
;
Humans
;
Neck*
;
Pseudoxanthoma Elasticum
;
Skin
;
Wounds and Injuries
5.A case of cryptococcal lymphadenitis.
Ho Sung CHO ; Young Baek HAHM ; Il Sin MOON ; Churl Young CHUNG ; Jung Weon SHIM ; Il Hyang KO
Journal of the Korean Pediatric Society 1992;35(1):108-112
No abstract available.
Lymphadenitis*
6.Retrograde Tracheal Intubation through Cricothyroid Membrane and Cricotracheal Ligament.
Sang Min YUN ; Young Saeng KIM ; Seong Doo CHO ; Nam Weon SONG
Korean Journal of Anesthesiology 1995;29(2):304-309
Numerous devices and techniques have been devised to facillitate the difficult endotracheal intubation. Percutaneous retrograde intubation was first described by Waters, who used a Tuohy needle to puncture the cricothyroid membrane and an epidural catheter as a guideline in 1963 and many variations on the technique have been described. Failure to intubate 2 male adult patients were planned retrograde tracheal intubation using the cricothyroid membrane. While the patients were awake, and after adequate local anesthesia was obtained, a 16G Medicut was punctured through cricothyroid membrane. After confirmation of the intratracheal position by aspiration of air into syringe, the opening of the Medicut was directed upward foward the larynx and the epidural catheter was inserted through it and advanced retrograde between the vocal cords and into mouth. The epidural catheter tip was passed through the Murphy's eye from outside to inside and out of the tracheal tube. By keeping the catheter taut and coincidently pulling back, the tube was advanced into trachea. Correct positioning of the tracheal tube inside the trachea was confirmed by end-tidal carbon dioxide monitoring and auscultation. Another 2 male adult patients were intubated by using cricotracheal retrograde approach method. We experienced successful retrograde tracheal intubation without significant complications using an epidural catheter through cricothyroid membrane and cricotracheal ligament in 4 male adult patients who were predicted impossibility of simple orotracheal intubation. (Korean J Anesthesiol 1995; 29: 304~309)
Adult
;
Anesthesia, Local
;
Auscultation
;
Carbon Dioxide
;
Catheters
;
Humans
;
Intubation*
;
Intubation, Intratracheal
;
Larynx
;
Ligaments*
;
Male
;
Membranes*
;
Mouth
;
Needles
;
Punctures
;
Syringes
;
Trachea
;
Vocal Cords
7.Lacrimal canalicular repairing using silicone intubation.
Jeong Jae LEE ; Joo Weon CHO ; Chang Wook KIM ; Young Cheun YOO ; Seog Keun YOO ; Sang Duck KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(6):1108-1114
Repairing of lacrimal canalicular laceration has some controversies on the golden time of surgery, the suture method, and the materials for stent. Recently, intubation of silicone tubes has become popular for repair of lacrimal canalicular injuries. Thirty-two cases of injured lacrimal canaliculi were repaired with use of silicone tube stents. The surgery can be done with monocanalicular(10 patients) or bicanalicular(22 patient) methods. The follow-up period was from two to eighteen months(mean ten months). Seven cases using the monocanalicular method and nineteen cases using the bicanalicular method were successful. Three cases of monocanalicular method had epiphora with canalicular obstruction due to early loss of the silicone tube. In monocanalicular method, postoperative complications were punctal granuloma(1 case), punctal slits(2 cases), and early loss of the silicone tube(3 cases). In bicanalicular method, postoperative complications were persistent epiphora during the period of intubaion(4 cases), conjunctival irritation sign(3 cases) and loop retraction(1 case). In conclusion, the success rate of bicanalicular stents were higher than that of monocanalicular stents for canalicular laceration. But the bicanalicular stent had some complications including cosmetic problem, possibility of injuries to the normal canaliculus during intubation, conjuntival irritation sign, and loop retraction.
Follow-Up Studies
;
Intubation*
;
Lacerations
;
Lacrimal Apparatus Diseases
;
Postoperative Complications
;
Silicones*
;
Stents
;
Sutures
8.Determination of Free 4-hydroxyproline with Dansylchloride by HPLC in Human Urine.
Keou Weon LEE ; Kyung Jong LEE ; Young Bong CHO
Korean Journal of Preventive Medicine 2002;35(4):282-286
OBJECTIVES: The level of 4-hydroxyproline (4-Hyp) in human urine was measured using high performance liquid chromatography (HPLC) with a fluorescence detector. This method is useful for medical examinations and investigating the radicals induced by physical, chemical, mental stresses. This method is superior to many published several methods in terms of its low cost and ability to analyze many samples. METHODS: The urine from workers in a tire manufacturing company (22 male pre- and post-shift workers) and 18 office-workers as controls were analyzed. Data concerning age, the cumulative drinking amount and the cumulative smoking amount was collected with a questionnaire. The optimum applied amount of dansyl-Cl, the optimum reaction temperature and time, the recoveries and the optimum pH of the eluent and buffer were determined. 4-Hyp from human urine was derivatized with dansyl-Cl (dimethylamino-naphthalene-1-sulfonyl chloride) after removing the alpha-amino acid by a treatment with phthalic dicarboxaldehyde (OPA) and cleaned with Bond Elut C18 column. The 4-Hyp derivatives were separated on a reversed phase column by gradient elution with a phosphate buffer (5 m mol, pH 8.0) and acetonitrile, and detected by fluorescence measurements at 340 nm (excitation) and 538 nm (emission). RESUJLTS: The detection limit for the urinary free 4-Hyp was 0.364 micro mol/l. The recovery rate of 4-Hyp was 99.7 %, and the effective pH of the phosphate buffer and borate buffer were 3.0 and 8.0, respectively. From statistical analysis, age, drinking and smoking did not affect the urinary free 4-Hyp in both the controls and workers. The range of urinary 4-Hyp in the controls, pre-shift, and post-shift workers were 0.33-16.44, N.D-49.06, and 0.32-56.27 micro mol/l. From the pared-sample t-test, the urinary 4-Hyp levels in post-shift workers (11.82+/-16.73 n mol/mg Cre) were 2-fold higher than in pre-shift workers (5.36+/-5.53 n mol/mg Cre) and controls (4.91+/-4.89 n mol/mg Cre). CONCLUSIONS: This method was developed with high sensitivity, accuracy, and precision. The present method was effectively applied to analyze the urinary free 4-Hyp in both controls and workers.
Chromatography, High Pressure Liquid*
;
Chromatography, Liquid
;
Drinking
;
Fluorescence
;
Humans*
;
Hydrogen-Ion Concentration
;
Hydroxyproline*
;
Limit of Detection
;
Male
;
Surveys and Questionnaires
;
Smoke
;
Smoking
9.Determination of Free 4-hydroxyproline with Dansylchloride by HPLC in Human Urine.
Keou Weon LEE ; Kyung Jong LEE ; Young Bong CHO
Korean Journal of Preventive Medicine 2002;35(4):282-286
OBJECTIVES: The level of 4-hydroxyproline (4-Hyp) in human urine was measured using high performance liquid chromatography (HPLC) with a fluorescence detector. This method is useful for medical examinations and investigating the radicals induced by physical, chemical, mental stresses. This method is superior to many published several methods in terms of its low cost and ability to analyze many samples. METHODS: The urine from workers in a tire manufacturing company (22 male pre- and post-shift workers) and 18 office-workers as controls were analyzed. Data concerning age, the cumulative drinking amount and the cumulative smoking amount was collected with a questionnaire. The optimum applied amount of dansyl-Cl, the optimum reaction temperature and time, the recoveries and the optimum pH of the eluent and buffer were determined. 4-Hyp from human urine was derivatized with dansyl-Cl (dimethylamino-naphthalene-1-sulfonyl chloride) after removing the alpha-amino acid by a treatment with phthalic dicarboxaldehyde (OPA) and cleaned with Bond Elut C18 column. The 4-Hyp derivatives were separated on a reversed phase column by gradient elution with a phosphate buffer (5 m mol, pH 8.0) and acetonitrile, and detected by fluorescence measurements at 340 nm (excitation) and 538 nm (emission). RESUJLTS: The detection limit for the urinary free 4-Hyp was 0.364 micro mol/l. The recovery rate of 4-Hyp was 99.7 %, and the effective pH of the phosphate buffer and borate buffer were 3.0 and 8.0, respectively. From statistical analysis, age, drinking and smoking did not affect the urinary free 4-Hyp in both the controls and workers. The range of urinary 4-Hyp in the controls, pre-shift, and post-shift workers were 0.33-16.44, N.D-49.06, and 0.32-56.27 micro mol/l. From the pared-sample t-test, the urinary 4-Hyp levels in post-shift workers (11.82+/-16.73 n mol/mg Cre) were 2-fold higher than in pre-shift workers (5.36+/-5.53 n mol/mg Cre) and controls (4.91+/-4.89 n mol/mg Cre). CONCLUSIONS: This method was developed with high sensitivity, accuracy, and precision. The present method was effectively applied to analyze the urinary free 4-Hyp in both controls and workers.
Chromatography, High Pressure Liquid*
;
Chromatography, Liquid
;
Drinking
;
Fluorescence
;
Humans*
;
Hydrogen-Ion Concentration
;
Hydroxyproline*
;
Limit of Detection
;
Male
;
Surveys and Questionnaires
;
Smoke
;
Smoking
10.Current Techniques for Treating Gastrointestinal Stromal Tumors in the Upper Gastrointestinal Tract.
Clinical Endoscopy 2016;49(3):226-228
Most gastrointestinal stromal tumors (GISTs) arise from the proper muscle layer of the upper gastrointestinal (GI) tract and have a low malignant potential. They are sometimes accompanied by symptoms, but in most cases are detected by chance. Endoscopic surgery of subepithelial tumors in the upper GI tract has been actively performed, and its merits include the need for fewer medical devices compared with other surgical procedures and post-resection organ preservation. However, because endoscopic procedures are still limited to small or pilot studies, a multidisciplinary approach combining laparoscopy and endoscopy is needed for more effective and pathologically acceptable management of GISTs. Many new endoscopic surgeries have been developed, and this review describes the current status of and the new approaches for endoscopic surgery of GISTs in the upper GI tract.
Endoscopy
;
Gastrointestinal Stromal Tumors*
;
Laparoscopy
;
Organ Preservation
;
Pilot Projects
;
Upper Gastrointestinal Tract*