2.A Survey on the Environmental Conditions of the CO Patients treated by Hyperbaric Oxygen Therapy.
In Dal KIM ; Dork Ro YUN ; Y O CHOI ; I C YUN ; C K LEE ; Y H YANG
Korean Journal of Preventive Medicine 1972;5(1):9-15
Carbon monoxide poisoning is one of the most serios health problems in Korea, because we have been encountered with the highest incidence of CO poisoning in the world due to the unique heating system in home called "ondal". We opened Hyperbaric chamber unit in the Seoul National University Hospital last Jan, 1969. We have treated 848 patients as of Sept. 30., 1972, around 44 months period. We collected the informations on the environmental conditions of the place where CO intoxication actually occurred by filling up the questionaire from 505 patients. The following finding were obtained. 1. Age distribution showed that the highest incidence was found in the younger age group between age of 10 to age of 29 in both sex. 2. Sex ratio of the patients was 1:1.14. 3. The socio-economic level of the patient was relatively low. 4. Housewife & housemaid were the major victims of the intoxication in the female patients & in the case of the male patient, occupational backgrounds were diverse. 5. Many patients form the middle class experienced the intoxication bu sleeping at newly built room. 6. Many intoxication has been occurred in the structure of houses where communicating doors are existing between living room & kitchen. 7. All findings obtained taught us again that CO poisoning is the serious by-product of the national fuel policy which put emphasis on the use of coal & socio-economic status is very important parameter in this hazards.
Age Distribution
;
Carbon Monoxide Poisoning
;
Coal
;
Female
;
Heating
;
Hot Temperature
;
Humans
;
Hyperbaric Oxygenation*
;
Incidence
;
Korea
;
Male
;
Poisoning
;
Seoul
;
Sex Ratio
3.A Survey on the Environmental Conditions of the CO Patients treated by Hyperbaric Oxygen Therapy.
In Dal KIM ; Dork Ro YUN ; Y O CHOI ; I C YUN ; C K LEE ; Y H YANG
Korean Journal of Preventive Medicine 1972;5(1):9-15
Carbon monoxide poisoning is one of the most serios health problems in Korea, because we have been encountered with the highest incidence of CO poisoning in the world due to the unique heating system in home called "ondal". We opened Hyperbaric chamber unit in the Seoul National University Hospital last Jan, 1969. We have treated 848 patients as of Sept. 30., 1972, around 44 months period. We collected the informations on the environmental conditions of the place where CO intoxication actually occurred by filling up the questionaire from 505 patients. The following finding were obtained. 1. Age distribution showed that the highest incidence was found in the younger age group between age of 10 to age of 29 in both sex. 2. Sex ratio of the patients was 1:1.14. 3. The socio-economic level of the patient was relatively low. 4. Housewife & housemaid were the major victims of the intoxication in the female patients & in the case of the male patient, occupational backgrounds were diverse. 5. Many patients form the middle class experienced the intoxication bu sleeping at newly built room. 6. Many intoxication has been occurred in the structure of houses where communicating doors are existing between living room & kitchen. 7. All findings obtained taught us again that CO poisoning is the serious by-product of the national fuel policy which put emphasis on the use of coal & socio-economic status is very important parameter in this hazards.
Age Distribution
;
Carbon Monoxide Poisoning
;
Coal
;
Female
;
Heating
;
Hot Temperature
;
Humans
;
Hyperbaric Oxygenation*
;
Incidence
;
Korea
;
Male
;
Poisoning
;
Seoul
;
Sex Ratio
4.Coefficient Variations of Serum Levels of Phenytoin, Carbamazepine, and Valproic Acid in Compliant Epileptics.
Hae Jung YUN ; O Y KWON ; K J PARK ; N G KIM ; T Y KIM ; S C JEON ; J G HONG ; J H KWAK ; Y H LEE ; N C CHOI ; B H LIM
Journal of the Korean Neurological Association 1999;17(1):72-78
Compliance of epileptic patients is one of the most important factors for adequate therapy. Recently, it had been shown that the variability of three serial measurement of the serum levels of antiepileptic drug(AED) may be used as an indication of the degree of compliance. Coefficient variation(CV) of serum drug levels calculated by only one AED had been used to determine the compliance in epileptic patients who took multiple AEDs. We attempted to evaluate the CV of AEDs and then find the objective clue of compliance and the compatible therapeutic planing according to CV. Ninety seven epileptic patients of outpatients department of the Gyengsang National University Hospital were entered to this study. All patients were taking medication at least for 6 months without any changes of drug regimen. Patient's information was acquired by reviewing the chart and interview with questionnaire. With these informations, we determined the compliance of the patients. Antiepileptic serum levels were measured three times at intervals of at least two to four weeks apart, and their CV was calculated. We compared the CV between the compliant and non-compliant group in each AED(phenytoin, carbamazepine , valproic acid) and three drugs in the compliant group. The mean CVs of phenytoin, carbamazepine and valproic acid in the compliant group were 18.3+/-13.0, 15.2+/-10.2 and 23.8+/-8.9, respectively(mean+/-SD). The mean of CV in the compliant and the non-compliant group were 17.9+/-10.9 and 38.8+/-27.2, respectively. The CVs of the compliant group were significantly lower than those of the non-compliant group(p<0.05). However, CVs had no significant difference between three antiepileptic drugs. This study showed that CVs of AEDs were not different between each AEDs, even though they possess different pharmacokinetic properties. Therefore, the CV of one AED can be used in determining the compliance of the epileptics who are taking multiple AEDs.
Anticonvulsants
;
Carbamazepine*
;
Compliance
;
Humans
;
Outpatients
;
Phenytoin*
;
Surveys and Questionnaires
;
Valproic Acid*
5.Use of the Putamen/Caudate Volume Ratio for Early Differentiation between Parkinsonian Variant of Multiple System Atrophy and Parkinson Disease.
Ha Y SHIN ; Suk Y KANG ; Jae H YANG ; Hyun Sook KIM ; Myung Sik LEE ; Young H SOHN
Journal of Clinical Neurology 2007;3(2):79-81
BACKGROUND AND PURPOSE: Neuropathological studies have demonstrated that multiple system atrophy (MSA) produces selective atrophy of the putamen with sparing of the caudate nucleus, while both structures are spared in idiopathic Parkinson's disease (PD). In this study we evaluated the clinical efficacy of using putaminal atrophy in brain MRI to differentiate MSA and PD. METHODS: We measured the putamen/caudate volume ratio on brain MRI in 24 patients with MSA and 21 patients with PD. Two clinicians who were blinded to the patients' diagnoses and to each other's assessments measured the volume ratio using a computer program. RESULTS: The measured volume ratios of the two investigators were highly correlated (r=0.72, p<0.0001). The volume ratio was significantly lower in MSA (1.29+/-0.28) than PD (1.91+/-0.29, p<0.0001). Setting an arbitrary cutoff ratio of 1.6 resulted in about 90% of patients with MSA falling into the group with a lower ratio, whereas more than 80% of patients with PD belonged to the other group. CONCLUSIONS: The present results demonstrate that putaminal atrophy in MSA as measured on brain MRI represents an effective tool for differentiating MSA from PD.
Atrophy
;
Brain
;
Caudate Nucleus
;
Diagnosis
;
Humans
;
Magnetic Resonance Imaging
;
Multiple System Atrophy*
;
Parkinson Disease*
;
Putamen
;
Research Personnel
6.Antimicrobial activity of eight root canal sealers before and after setting.
Denny Y FANG ; Woocheol LEE ; Chern H LAI
Journal of Korean Academy of Conservative Dentistry 2002;27(2):207-211
No abstract available.
Dental Pulp Cavity
7.Epidural Hematoma Presenting with Severe Neck Pain without Neurological Deficit - A Late Complication of Posterior Cervical Spine Surgery: Presentation of Three Unusual Cases.
Mustafa H KHAN ; Joon Y LEE ; William F DONALDSON ; James D KANG
Asian Spine Journal 2007;1(1):57-60
Postoperative epidural hematoma (EDH) usually present with neurological deficit. Massive EDH presenting with only severe pain without neurological deficit are rare. Atypical presentations of postoperative EDHs may lead to delayed diagnosis and treatment. We present three such cases after posterior cervical spine surgery. Three patients presented with severe neck pain and spasms without motor deficits several days after posterior cervical decompressive procedures. Imaging studies identified compressive EDHs at the surgical site with severe compression of the spinal cord. All were treated with emergent decompression, with resulting improvement of symptoms and pain relief without further neurological sequelae. In conclusion, postoperative EDHs after posterior cervical spine surgery may result in minimal neurological deficit. Our report reminds surgeons to keep this possibility in mind when patients complain of unusually severe neck pain and spasms after posterior cervical spine surgery.
Decompression
;
Delayed Diagnosis
;
Hematoma*
;
Humans
;
Neck Pain*
;
Neck*
;
Postoperative Complications
;
Spasm
;
Spinal Cord
;
Spine*
8.Studies of new sympathomimetic beta-receptor stimulating drugs in asthmatic patients. III. A comparative trial of subcutaneous terbutaline and trimetoquinol.
J L Da COSTA ; B K GOH ; H Y LEE ; P C TEOH
Singapore medical journal 1975;16(2):143-146
Adolescent
;
Adult
;
Asthma
;
drug therapy
;
Czechoslovakia
;
History of Medicine
;
Humans
;
Injections, Subcutaneous
;
Isoquinolines
;
administration & dosage
;
Mental Disorders
;
drug therapy
;
Psychiatry
;
history
;
Terbutaline
;
administration & dosage
;
therapeutic use
;
Tranquilizing Agents
;
history
;
therapeutic use
;
Tretoquinol
;
administration & dosage
;
therapeutic use
9.Inter-ethnic differences--how important is it in cancer treatment?
Winnie H Y LING ; Soo Chin LEE
Annals of the Academy of Medicine, Singapore 2011;40(8):356-361
It is now well recognised that there are inter-ethnic differences accounting for variations in both pharmacokinetics (PK) and pharmacodynamics (PD) of drugs, resulting in differences in drug responses. Treating physicians should be aware of pharmacogenetic differences that may exist between the races while extrapolating data generated from other populations to their own patients in order to ensure optimal treatment response and minimise toxicity. This is especially crucial in the practice of oncology where many anti-cancer drugs have narrow therapeutic indices. This paper discusses some commonly used drugs in cancer treatment where inter-ethnic differences in drug safety and efficacy are known to exist that are relevant to the Asian physician.
Antineoplastic Agents
;
pharmacology
;
Clinical Competence
;
Cultural Diversity
;
Ethnic Groups
;
Humans
;
Neoplasms
;
drug therapy
;
ethnology
10.Return to sports after anterior cruciate ligament reconstruction - a review of patients with minimum 5-year follow-up.
Dave Y H LEE ; Sarina Abdul KARIM ; Haw Chong CHANG
Annals of the Academy of Medicine, Singapore 2008;37(4):273-278
INTRODUCTIONIt is difficult to counsel the anterior cruciate ligament (ACL) deficient patient considering surgical reconstruction on the likelihood of eventual return to sports as information on this is lacking, especially in the Asian context. We wanted to determine how many of our patients who had ACL surgery returned to their previous levels of sports, 5 years after their surgery. For those that had not returned to their previous levels of sports, we wanted to identify their reasons for not doing so.
MATERIALS AND METHODSBased on our inclusion criteria of a minimum 5-year follow-up after primary ACL reconstruction, 146 patients were identified for assessment. Sixty-four patients were successfully recalled. The mean age of our patients was 24.8 years (range, 18 to 40). The patients completed the Lysholm Knee, Tegner activity and the Subjective International Knee Documentation Committee (IKDC) questionnaires. Clinical examination of the operated knee was performed according to the Objective IKDC evaluation form and with a KT-1000 arthrometer.
RESULTSThe mean Lysholm score was 85.2 and the mean subjective IKDC score was 79.5. 81.2% of our patients had normal or nearly normal knees (IKDC A or B) with the remaining 18.8% at IKDC grade C. The mean side-side difference for anterior translation using the KT-1000 arthrometer was 1.2 mm. The median pre-injury Tegner activity level was 7 and the median 5-year post-surgery Tegner activity level was 6. Nineteen patients did not return to their pre-injury sports levels because of social reasons and were excluded. From the remaining 45 patients, 28 patients (62.2%) returned to their previous level of sports and 17 patients (28.8%) did not return to their previous level of sports. Of whom, 9 (20%) said that they did not return due to fear of re-injury and the remaining 8 (17.8%) said they had not returned because of knee instability and pain. At 5 years, the subgroup of patients who had returned to sport had the best scores: Lysholm (88.5), subjective IKDC (84.6) and IKDC Grade A&B (89.3%). When we compared this with the subgroups that did not return to sport because of fear of re-injury and because of an unstable knee, we found that the difference in knee outcome scores between these 3 groups were statistically significant.
CONCLUSIONSixty-two per cent of our patients returned to their previous level of sport at 5 years after ACL reconstruction. Fear of reinjury is an important psychological factor for these patients not returning to sports. Our results would allow the attending surgeon to counsel the ACL deficient patient who is considering surgical reconstruction the likelihood of eventual return to sports.
Adolescent ; Adult ; Anterior Cruciate Ligament ; surgery ; Anterior Cruciate Ligament Injuries ; Athletic Performance ; Female ; Follow-Up Studies ; Humans ; Knee Injuries ; rehabilitation ; surgery ; Male ; Orthopedic Procedures ; rehabilitation ; Physical Examination ; Retrospective Studies ; Sports ; Surveys and Questionnaires