1.Ventilatory Dynamics in Hypertensive Heart Disease.
Chang Woon KWON ; Tae Hoon JUNG ; Hi Myung PARK
Korean Circulation Journal 1988;18(4):613-620
Small and large airways functions were studied in patients with hypertensive heart disease in slightly ro moderately compromised state functionally. In this study, the forced vital capacity and various flow paramaeters reflecting expiratory flow rate were determined from simultaneously recorded forced expiratory volume and maximal expiretory flow volume curves in 86 cases. The closing volume was measured by a single breath nitrogen mrthod in 57 cases and airway resistance with its related parameters by a body plethysmograph in 11 cases. These results were compared with those obtained from the same numbers of healthy controls matched for sex, age and height. In the patient group, the forced vital capadity and all the observed values of flow parameters, execpt for the ratio of the first second vital capacity to the forced vital capacity, were significantly reduced than those in the controls. When the remainder of flow parameters was volume-adjusted to the forced vital capacity, however, the mean of the peak expiratory flow rate and the maximal expiratory flow rate at the 75 percent of the vital capacity were not significantly different from that of controls. In contrast, the volume-adjusted values of maximal expiratory flow were remained significantly smaller than those in the controls. The closing volume and its ratio to the vital capacity were significantly larger in the patient group. Airway resistance and its related parameters revealed no significant differences between two groups. These findings suggest that the patients with hypertensive heart disease in a mild to moderate failure are associated with restrictive ventilatory impairment and a small airways obstruction, but with little or no large airway dysfunction.
Airway Resistance
;
Closing Volume
;
Forced Expiratory Volume
;
Heart Diseases*
;
Heart*
;
Humans
;
Maximal Expiratory Flow Rate
;
Nitrogen
;
Peak Expiratory Flow Rate
;
Vital Capacity
2.An experimental study on the fatigue fracture of laminate porcelain.
Charn Woon PARK ; Tae Sung BAE ; Sang Don LEE
The Journal of Korean Academy of Prosthodontics 1993;31(4):482-505
No abstract available.
Dental Porcelain*
;
Fatigue*
;
Fractures, Stress*
3.A study on the effect of pulsed Nd: YAG laser impacts to the enamel surface and bond strength with composite resin.
Jong Man PARK ; Tae Seong BAE ; Kwang Yeob SONG ; Charn Woon PARK
The Journal of Korean Academy of Prosthodontics 1991;29(2):85-101
No abstract available.
Dental Enamel*
;
Lasers, Solid-State*
4.The effects of porcelain primers on the bonding of composite resins to porcelain.
Myung Ju BACK ; Ju Mi PARK ; Tae Seong BAE ; Charn Woon PARK
The Journal of Korean Academy of Prosthodontics 1992;30(1):55-64
No abstract available.
Composite Resins*
;
Dental Porcelain*
5.An experimental study on the residual stress and bond strength of ceramo-metal system.
Gi Jin KIM ; Tae Seong BAE ; Kwang Yeob SONG ; Charn Woon PARK
The Journal of Korean Academy of Prosthodontics 1991;29(2):67-84
No abstract available.
6.A Case of Early Gastric Cancer in Childhood.
Yong Woon SHIN ; Tae Byung PARK ; Kee Hyung LEE ; Chul Ho CHO ; Juhn Mi KIM
Korean Journal of Gastrointestinal Endoscopy 1992;12(2):259-261
The incidence of gastric cancer is high in old age group and low in young age group, extremely rare in child age. So the diagnosis of gastric cancer in young age is often delayed, and this, with other factors such as poorly differentiated histopathologic tendency and rapid growing nature, makes the prognosis poorer than in other age guoup. Therefore it should always be remembered that the young who has gastric symptom may have malignancy in his stomach in spite of the age. We report a case of early gastric cancer in a 16-years old male with the review of the literature.
Adolescent
;
Child
;
Diagnosis
;
Humans
;
Incidence
;
Male
;
Prognosis
;
Stomach
;
Stomach Neoplasms*
7.Radiological evaluation of primary bile duct cancer
Seung Woon CHO ; Ki Whang KIM ; Jong Tae LEE ; Chang Yun PARK
Journal of the Korean Radiological Society 1983;19(4):789-796
Primary carcinoma of the bile duct is uncommon but not rare and its prognosis is poor even though long-termsurvival had been reported. The authors presented 62 cases of bile duct cancer, which were confirmed at YUMC fromJan. 1971 to Dec. 1981. The results were as follows; 1. The most prevalent age group was 6th decade and a male-tofemale ratio was 1.9:1. 2. Jaundice was the most common clinical manifestations(84%), and followed by right
Bile Duct Neoplasms
;
Bile Ducts
;
Bile
;
Cholangiopancreatography, Endoscopic Retrograde
;
Common Bile Duct
;
Diagnosis
;
Dilatation
;
Hepatomegaly
;
Humans
;
Jaundice
;
Prognosis
;
Ultrasonography
8.Changes in myofascial pressure threshold following trigger point injection.
Si Woon PARK ; Yun Hee KIM ; Soon Ja JANG ; Young Tae CHOI
Journal of the Korean Academy of Rehabilitation Medicine 1991;15(4):493-501
No abstract available.
Trigger Points*
9.Two Cases of Triple Gastric Cancer.
Tae Byung PARK ; Kye Suk KWON ; Won Jae CHUNG ; Yong Woon SHIN ; Byung Yup AHN ; Chan Sub PARK ; Sung Tae OH ; Kyung Rae KIM ; Young Chae CHOO
Korean Journal of Gastrointestinal Endoscopy 1992;12(1):57-60
Multiple gastric caner, now considered to be a sort of multiple primary cancer by Moertel's classification, is a special type of cancer in which two or more tumor lesions arise independently from the stomach. Although its incidence is rare and it has never been reported in Korea yet, the report of multiple gastric cancer is increasing with lengthened life survival and improved diagnostic method. We recently experienced two cases of triple gastric cancer, the one in 53-years-old male who had well differentiated adenocarcinoma(EGC IIb+c) on antrum, poorly differentiated adenocarcinoma on cardia and moderately differentiated adenocarcinoma on mid-body, and the other in 65-years-old female who had two poorly differentiated adenocarcinoma on cardia and anterior wall of low body and moderately differentiated adenocarcinoma (EGCIIc) on posterior wall of low body. Triple gastric cancer is rare, so we reported 2 cases of triple gastric cancer.
Adenocarcinoma
;
Cardia
;
Classification
;
Female
;
Humans
;
Incidence
;
Korea
;
Male
;
Stomach
;
Stomach Neoplasms*
10.Application of Cognitive Perceptual Assessment for Driving (CPAD) for the Brain Injured Patients: A preliminary study.
Soo Won CHOI ; Soon Ja JANG ; Si Woon PARK ; Jong Tae LEE ; Oak Tae PARK
Journal of the Korean Academy of Rehabilitation Medicine 2008;32(3):273-279
OBJECTIVE: To evaluate the utility of Cognitive Perceptual Assessment for Driving (CPAD) through the on-road test in predicting the actual road driving skills in brain injured patients. METHOD: 25 brain injured patients with actual driving experience before the occurrence of diseases participated in the handicapped driving adaptation training program of our hospital as the subjects of the study, and one round of CPAD and on-road test were performed. CPAD evaluations and on-road tests for all patients were evaluated by the same therapist. RESULTS: 11 patients passed the CPAD and all of them passed the on-road test. 3 patients failed from CPAD and they turned out to be failed at the on-road test. The mean CPAD score of the on-road test passed group was 53.6 which was significantly different from the mean 43.6 CPAD score acquired by the on-road test failed group by showing a significant difference between two groups (p<0.05). Among the 11 patients who received the borderline CPAD score, 9 patients passed the on-road test. CONCLUSION: CPAD is considered to be useful in predicting the actual road driving skills of brain injured patients who previously had driving experiences before the occurrence of the diseases.
Brain
;
Disabled Persons
;
Humans