1.Management of Atrial Fibrillation.
Korean Circulation Journal 1999;29(4):440-447
No abstract available.
Atrial Fibrillation*
2.Permanent Pacemaker Implantation Technique.
Korean Circulation Journal 1997;27(7):800-807
No abstract available.
4.Anesthetic Management for Selective Dorsal Rhizotomy.
Won Hyung LEE ; Jeong Ok CHO ; Hyun Suk CHO
Korean Journal of Anesthesiology 1998;35(5):939-945
Background: Cerebral palsy is due to static encephalopathy during perinatal period. Selective dorsal rhizotomy (SDR) involves selective division of posterior nerve roots to reduce spasticity and improve function in children with spastic cerebral palsy. Anesthesia during SDR must preserve muscle contraction in response to direct electrical stimulation of the dorsal nerve roots. We did this study to get the better management of anesthesia for SDR. Methods: Anesthetic records were reviewed for 16 patients who underwent SDR during January 1996 to August 1997. Demographic data; anesthetic drugs and doses; changes of vital signs and end tidal CO2; dorsal root stimulation; postoperative pain control were analysed. Results: The mean age of patients was 4.9+/-1.7 years old. The mean weight was 16.3+/-4.0 kg. The under 1 MAC concentration of isoflurane and 2~3 mcg/kg/hr fentanyl did not interfere with electrophysiologic monitoring. Esophageal temperature was increased significantly during electrical stimulation of dorsal roots. End tidal CO2 concentration had a tendency to increase after electrical stimulation too. Direct installation of 10~15 mcg/kg intrathecal morphine prior to dural closure, and postoperative 0.5 mcg/kg/hr fentanyl had a good postoperative analgesia without complication. Conclusions: Isoflurane and fentanyl during anesthesia, and intrathecal morphine with continuous infusion of fentany postoperatively are suggested a good anesthetic method for SDR.
Analgesia
;
Anesthesia
;
Anesthetics
;
Cerebral Palsy
;
Child
;
Electric Stimulation
;
Fentanyl
;
Humans
;
Isoflurane
;
Morphine
;
Muscle Contraction
;
Muscle Spasticity
;
Pain, Postoperative
;
Rhizotomy*
;
Spinal Nerve Roots
;
Vital Signs
6.Results of observation versus operation for right lower abdominal pain in pediatric patients.
Sang Hoon CHO ; Min Jeong JEONG ; Tae Hoon LEE
Journal of the Korean Surgical Society 1992;42(2):245-254
No abstract available.
Abdominal Pain*
;
Humans
7.Results of observation versus operation for right lower abdominal pain in pediatric patients.
Sang Hoon CHO ; Min Jeong JEONG ; Tae Hoon LEE
Journal of the Korean Surgical Society 1992;42(2):245-254
No abstract available.
Abdominal Pain*
;
Humans
8.The Changes in Pacing Threshold of Permanent Endocardial Ventricular Pacemaker.
Jeong Gwan CHO ; Jung Chaee KANG
Korean Circulation Journal 1990;20(2):220-225
Serial meanurements of the pacing threshold have been considered as essential for follow-up of the patients in whom the pacemaker had been implanted because pacing threshold is directly related to the success of long-term pacemaker therapy and reflects the alterations in electrobiologic factors influencing it. The development of the noninvasive technique of measuring pacing threshold such as Vario system made the noninvasive follow-up of it feasible and therefore has contributed to understanding of long-term threshold behavior. This study was performed to get the knowledge of acute and chronic pacing threshold behavior by measuring it serially in 46 patients after pacemaker implantation using a non invasive technique of Vario system. Patients subjected to the present study were 46(18 males, 28 females) comprising 21 sick sinus syndromes, 24 A-V blocks, and 1 combined disorder. All were received a multiprogrammable pacemaker of VVI mode (OPTIMA-MP, Telectronics). Pacing threshold was increased significantly from initial threshold(0.65+/-0.22) 2 days after implantation and reached to peak(1.65+/-0.75 volts) in the fourth week, thereafter it was maintained around twice the initial value. In the 30 patients followed more than 3 months, the maximum increase and difference in pacing thresholds were 0.86+/-0.62 volts and 0.93+/-0.56 volts respectively and the ratios of peak threshold and threshold at the end of follow-up to initial threshold were 2.56+/-1.23 and 2.30+/-1.30 respectively. Pacing threshold exceeded 2.0 volts in 7 patients(15.2%), but transiently in 3 of 5 patients in whom it happened within 6 weeks after implantation. Safety margins of long-term thresholds were acceptable(more than 3) in all patients at 5.0 volts and 19(63.3%) at 2.5 volts of programmed output.
Follow-Up Studies
;
Humans
;
Male
9.Evaluation of the Use of Rh(D)'Control Test in Rh(D) Typing.
Yoon Jeong CHO ; Jong Seong CHOI
Korean Journal of Blood Transfusion 1996;7(1):23-26
Clinically, the Rh blood group system is important since Rh antibodies are readily induced by transfusion or pregnancy in individuals negative for the antigert and may cause hemolytic reactions or hemolytic disease of the newborn. Since the D antigert is strongly immunogenic, donors and patients are routinely typed for D status and patients are generally given D compatible blood. But under several circumstances such as spontaneous agglutination of red blood cells coated with immunoglobulin, antisera with additives may cause false positive results in test using high-protein reagents. And facton in the patient' s own serum may also affect the test, since unwashed red blood cells suspended in their own serum or plasma are frequently tested. Therefore, manufacturers and American Association of Blood Banks(AABB) recommend that the Rh(D) control test with Rh(D) control reagent which contains the same additive present in high-protein anti-D except for the anti-D. This study was undertaken to evaluate the usefss of the Rh(D) control test in Korea where Rh(D) negative population is small. Red blood cells from 1115 in-patients and 468 out-patients at Korea University Medical Center were employed in Rh(D) typing and Rh(D) control test in parellel. 1580 cases are Rh(D) positive and 3 cases were Rh(D) negative. No agglutination was observed with Rh(D) control test. Though AABB and manufacturers recommended that the Rh(D) control test should be done in parellel with Rh(D) typing test, the authers concluded that there were no need to run the Rh(D) control test in Korea.
Academic Medical Centers
;
Agglutination
;
Antibodies
;
Erythrocytes
;
Humans
;
Immune Sera
;
Immunoglobulins
;
Indicators and Reagents
;
Infant, Newborn
;
Korea
;
Outpatients
;
Plasma
;
Pregnancy
;
Tissue Donors
10.Schizophrenia Spectrum Disorder in DSM-5 : Is this a New Change?.
Chul Hyun CHO ; Heon Jeong LEE
Korean Journal of Schizophrenia Research 2014;17(1):5-11
The American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders, Fifth version (DSM-5) finally introduced in 2013. Psychiatrists and researchers of neuroscience were looking forward that DSM-5 will introduce a new paradigm of diagnostic criteria. However, they have criticized on DSM-5 about not including of neurobiological criteria after DSM-5 published. Since schizophrenia spectrum disorder is heterogeneous and hard to diagnose correctly, we can guess that there might be a big affliction in preparation of DSM-5. Diagnostic criteria of schizophrenia spectrum disorder in DSM-5 changed in several points including changes of Criteria A of schizophrenia. The most outstanding change is the elimination of subtypes of schizophrenia, and introducing of Clinician-Rated Dimensions of Psychosis Symptom Severity for further division into homogenous subgroups depending on psychosis symptoms. Until now, the results of various neurobiological investigations are not consistent, so neurobiological criteria of schizophrenia spectrum disorder deserved no inclusion in DSM-5. Thinking comprehensively, DSM-5 might decide to choose stability rather than challenge. In the future, the diagnostic criteria of schizophrenia spectrum disorder in DSM will progress with inclusion of neurobiological criteria, and researches of schizophrenia spectrum disorder will make advance that match changes in progression of DSM.
Diagnostic and Statistical Manual of Mental Disorders
;
Neurosciences
;
Psychiatry
;
Psychotic Disorders
;
Schizophrenia*
;
Thinking