1.Calculation of the Residual Blood Volume after Acute, Non-Ongoing Hemorrhage Using Serial Hematocrit Measurements and the Volume of Isotonic Fluid Infused: Theoretical Hypothesis Generating Study.
Journal of Korean Medical Science 2016;31(5):814-816
Fluid resuscitation, hemostasis, and transfusion is essential in care of hemorrhagic shock. Although estimation of the residual blood volume is crucial, the standard measuring methods are impractical or unsafe. Vital signs, central venous or pulmonary artery pressures are inaccurate. We hypothesized that the residual blood volume for acute, non-ongoing hemorrhage was calculable using serial hematocrit measurements and the volume of isotonic solution infused. Blood volume is the sum of volumes of red blood cells and plasma. For acute, non-ongoing hemorrhage, red blood cell volume would not change. A certain portion of the isotonic fluid would increase plasma volume. Mathematically, we suggest that the residual blood volume after acute, non-ongoing hemorrhage might be calculated as 0·25N/[(Hct1/Hct2)-1], where Hct1 and Hct2 are the initial and subsequent hematocrits, respectively, and N is the volume of isotonic solution infused. In vivo validation and modification is needed before clinical application of this model.
Blood Volume
;
Hematocrit
;
Humans
;
Isotonic Solutions/*therapeutic use
;
*Models, Theoretical
;
Shock, Hemorrhagic/*prevention & control/*therapy
2.Nasal Mask BiPAP for the Chronic Obstructive Pulmonary Disease with Kyphoscoliosis.
Shin Ok KOH ; Byoung Hark PARK ; Eun Chi BANG ; Sung Sik CHON ; Yong Taek NAM ; Won Young LEE
Korean Journal of Anesthesiology 1997;33(6):1207-1211
Chronic fatigue of the respiratory muscles has contributed to the decreased ventilatory capacity and reduced excercise tolerance of individuals with COPD, especially in kyphoscoliosis. Nasal mask BiPAP has been shown to be useful for the patient with nocturnal muscle fatigue and COPD. A 35-year-old man with severe kyphoscoliosis was admitted to ICU due to acute respiratory failure. He had been diagnosed of COPD and had been intubated with mechanical ventilatory support for 7 times. This time he was intubated with ventilatory support, too, in ICU and readmitted to the ICU for severe hypoxemia and hypercarbia from general ward. Thereafter he refused the intubation. Nasal mask BiPAP ventilatory support system was applied and IPAP, EPAP level being adjusted to the 12, 4 cmH2O under monitoring vital signs and arterial blood gas analysis. His condition was improved and discharged home with support of nasal mask BiPAP system after 33 day-stay in the ICU.
Adult
;
Anoxia
;
Blood Gas Analysis
;
Fatigue
;
Humans
;
Intubation
;
Masks*
;
Muscle Fatigue
;
Patients' Rooms
;
Pulmonary Disease, Chronic Obstructive*
;
Respiratory Insufficiency
;
Respiratory Muscles
;
Vital Signs
3.The Clinical significance of HBV markers in chronic HBsAg carrier: Titers of HBsAg, and HBeAg, and presence or absence of HBeAg and HBV-DNA.
Mi Kyeong OH ; Dong Jin LEE ; Joo Hyun HAN ; Kung Soo CHON ; Jong Sung KIM ; Kung Suk WON
Journal of the Korean Academy of Family Medicine 2000;21(10):1307-1316
No Abstract Available.
Hepatitis B e Antigens*
;
Hepatitis B Surface Antigens*
4.Effects of Sufentanil on Isolated Cardiac Tissue of the Rabbits.
Soon Ho NAM ; Won Oak KIM ; Sung Sik CHON
Korean Journal of Anesthesiology 1996;30(1):20-24
BACKGROUND: The synthetic narcotic sufentanil has been used in clinical practice for anesthetic induction and maintenance. But there is little information concerning its direct effects on heart. The purpose of this study is to evaluate the direct effects of sufentanil on contracture of ventricular myocardium. METHODS: Isometric contraction of isolated right ventricular papillary muscle of rabbit was measured under 0.2 Hz electrical stimulation in Krebs solution. Peak developed force(F), maximum rate of rise of developed force(+dF/dt(max)), maximum rate of fall of developed force(-dF/dt(max)) were analyzed. RESULTS: There were no statistically significant differences in frequency of isometric contraction from the 100% baseline value in time-matched control group. Sufentanil, in concentration of 0.01-0.1 mM, increased F, and -dF/dt(max) was decreased especially in concentration of 0.1 mM but not +dF/dt(max) Fo +dF/dt(max) and -dF/dt(max) were statistically different from time-matched control group in concentration of 0.1 mM. CONCLUSIONS: We conclude that sufentanil has mild contracture effect on ventricular muscle of rabbit directly.
Analgesics
;
Contracture
;
Electric Stimulation
;
Heart
;
Isometric Contraction
;
Myocardium
;
Papillary Muscles
;
Rabbits*
;
Sufentanil*
5.A Recognition Survey by Psychiatry Residents Regarding the Quality of Psychotherapy Training and Psychotherapy Competencies in Korea
Ye Ji KIM ; Yeong Gi KYEON ; Seung Jae LEE ; Myong-Wuk CHON ; Sang Won LEE ; Sung Won JUNG ; Kang Uk LEE ;
Journal of Korean Neuropsychiatric Association 2021;60(3):223-231
Objectives:
This study surveyed the quality of psychotherapy training and psychotherapy competencies during residency in Korea.
Methods:
A questionnaire developed by The Committee of Residency Training of the Korean Neuropsychiatric Association was completed by fourth-year residents of Korean psychiatry (n=120). The questionnaire examined their demographic characteristics, their experience of clinical psychotherapy training, their degree of satisfaction in the quality of psychotherapy training, and self-rated competence regarding the six types of psychotherapies, including supportive psychotherapy, cognitive behavioral therapy, interpersonal psychotherapy, psychoanalytic psychotherapy, group psychotherapy, and family psychotherapy.
Results:
The degree of satisfaction of the residents with the psychotherapy training was diverse among the types of psychotherapy and contents of training. Across all types of psychotherapies, the satisfaction levels of the quantity and quality of supervision education were low, except for psychoanalytic psychotherapy. Overall, more than 70% of residents were not satisfied with the theoretical education, clinical practice, and supervision education in three types of psychotherapies, including interpersonal psychotherapy, group psychotherapy, and family psychotherapy. A positive correlation was found between the degree of satisfaction with the quality of training experience and self-rated competence of psychotherapy. Specifically, the self-rated competence of psychotherapy was more highly correlated with the experience of clinical cases and supervision than theoretical education
Conclusion
This study showed the quantitative and qualitative status of psychotherapy training in Korean psychiatry residency programs, and the satisfaction level of psychotherapy education was low except for psychoanalytic psychotherapy. There is a strong need for the improvement of psychotherapy training programs in Korea.
6.A Recognition Survey by Psychiatry Residents Regarding the Quality of Psychotherapy Training and Psychotherapy Competencies in Korea
Ye Ji KIM ; Yeong Gi KYEON ; Seung Jae LEE ; Myong-Wuk CHON ; Sang Won LEE ; Sung Won JUNG ; Kang Uk LEE ;
Journal of Korean Neuropsychiatric Association 2021;60(3):223-231
Objectives:
This study surveyed the quality of psychotherapy training and psychotherapy competencies during residency in Korea.
Methods:
A questionnaire developed by The Committee of Residency Training of the Korean Neuropsychiatric Association was completed by fourth-year residents of Korean psychiatry (n=120). The questionnaire examined their demographic characteristics, their experience of clinical psychotherapy training, their degree of satisfaction in the quality of psychotherapy training, and self-rated competence regarding the six types of psychotherapies, including supportive psychotherapy, cognitive behavioral therapy, interpersonal psychotherapy, psychoanalytic psychotherapy, group psychotherapy, and family psychotherapy.
Results:
The degree of satisfaction of the residents with the psychotherapy training was diverse among the types of psychotherapy and contents of training. Across all types of psychotherapies, the satisfaction levels of the quantity and quality of supervision education were low, except for psychoanalytic psychotherapy. Overall, more than 70% of residents were not satisfied with the theoretical education, clinical practice, and supervision education in three types of psychotherapies, including interpersonal psychotherapy, group psychotherapy, and family psychotherapy. A positive correlation was found between the degree of satisfaction with the quality of training experience and self-rated competence of psychotherapy. Specifically, the self-rated competence of psychotherapy was more highly correlated with the experience of clinical cases and supervision than theoretical education
Conclusion
This study showed the quantitative and qualitative status of psychotherapy training in Korean psychiatry residency programs, and the satisfaction level of psychotherapy education was low except for psychoanalytic psychotherapy. There is a strong need for the improvement of psychotherapy training programs in Korea.
7.Anesthetic Management during Laparoscopic Cystectomy in a Third Trimester Pregnancy: A case report.
Jin Young CHON ; Won Woo KIM ; Sung Jin HONG ; Se Ho MOON ; Kyung A RYU
Korean Journal of Anesthesiology 1999;37(5):943-950
Pregnancy, especially in the third trimester, has been considered a contraindication of laparoscopic procedure because the effect of CO2 pneumoperitoneum on the fetus and uterine blood flow was unclear. However, the benefits of laparoscopic surgery such as less stress response and shorter hospital stay are postulated. Laparoscopic surgery may be beneficial in pregnant patients compared to open laparotomy, and the safety of laparoscopic operations in pregnant women is under investigation. The careful anesthetic management and close monitoring of patient and fetus will be helpful in making laparoscopic surgery safer in pregnant patients. We report the anesthetic management for laparoscopic surgery in a third trimester pregnant patient with torsion of an ovarian cyst. We monitored the intestinal mucosal CO2 using Tonocap, because we considered it could represent the uterine perfusion and intestinal CO2 status. Although the arterial and intestinal mucosal CO2 tension increased gradually during the operation, hypercapnia was not remarkable. The respiratory and monitored parameters were stable during the laparoscopic procedure. The patient has maintained uneventful pregnancy and delivered a healthy baby at 41 weeks of gestation.
Cystectomy*
;
Female
;
Fetus
;
Humans
;
Hypercapnia
;
Laparoscopy
;
Laparotomy
;
Length of Stay
;
Ovarian Cysts
;
Perfusion
;
Pneumoperitoneum
;
Pregnancy
;
Pregnancy Trimester, Third*
;
Pregnant Women
8.A Serous Papillary Cystadenoma of Borderline Malignancy in Testis.
Hyun Jun PARK ; Sung Woo PARK ; Won Hee CHON ; Suk Gun JUNG ; Nam Cheol PARK
Korean Journal of Andrology 2007;25(1):36-38
Serous papillary cystadenomas arising in testis have been rarely reported, and they often resemble ovarian serous tumors of borderline malignancy. Herein, we report a case of a serous papillary cystadenoma of the testis in a 59 year old man. Based on a clinical diagnosis of left testicular tumor, a left radical orchiectomy was performed. The pathologic evaluation revealed a serous papillary cystadenoma of borderline malignancy in the testis.
Cystadenoma, Papillary*
;
Diagnosis
;
Humans
;
Middle Aged
;
Orchiectomy
;
Testis*
9.Prevalence and Correlates of Sexual Assault in Psychiatric Patients.
Daeho KIM ; Haewon LEE ; Sung Won ROH ; Joonho CHOI ; Yong Chon PARK ; Seung Ah CHUNG ; Jung Hyun NAM
Journal of Korean Neuropsychiatric Association 2005;44(6):663-670
OBJECTIVES: The direct causal relationship between the experience of sexual assault and development of psychiatric disorder remains uncertain. However, studies consistently show that those with history of this horrendous event report a wide range of symptoms, higher level of distress, and various social and psychological problems. This study investigated the prevalence and associated risk factors in a cohort sample of 340 Korean psychiatric patients. METHODS: Data from consecutive 340 new patients were gathered at a psychiatric department of a university affiliated hospital. Participants completed Life Events Scale, Symptom Checklist-90-R, State-Trait Anxiety Inventory, Beck Depression Inventory, and Dissociative Experiences Scale. RESULTS: History of sexual assault was reported by 11.5% of respondents (women 18.6%;men 2.1%). Bivariate analysis revealed that women (p<.001), divorced or widowed and never been married (p<.05), unemployed and students or housewives (p<.05), monthly income more than 2 million Won (p<.05) were associated significantly with experience of sexual assault. All the scores from the scales but Beck Depression Inventory were significantly higher for the sexually assaulted. Multiple logistic regression analysis revealed that women were 12 times more likely to be sexually assaulted (Odds ratio=12.24, 95% CI=3.51-42.64). Other risk factors included younger age and interaction of post-traumatic stress disorder (PTSD) and Global Severity Index. CONCLUSION: This study supported the risk factors of sexual assaults identified in western literature. Clinicians can be alert for any history of sexual assault when younger women with PTSD present higher level of symptomatology.
Anxiety
;
Cohort Studies
;
Surveys and Questionnaires
;
Depression
;
Divorce
;
Female
;
Humans
;
Logistic Models
;
Prevalence*
;
Rape
;
Risk Factors
;
Stress Disorders, Post-Traumatic
;
Weights and Measures
;
Widowhood
10.Mathematical Explanation for the Wide and Deviated Range of Optimal Hematocrit.
Sung Bin CHON ; Jun Hwi CHO ; Seung Joon LEE ; Won Sup OH
Journal of the Korean Society of Emergency Medicine 2013;24(1):129-130
Hematocrit is an important determinant of oxygen delivery. Of particular interest, its target level is very wide for different kinds of shock: from 30% for hemorrhagic or septic shock to 56% for secondary polycythemia. This range is not only wide but also deviated to the higher level from the optimal value of 40%. In this letter, the authors determine the mathematical basis of the wide and deviated range of hematocrit starting from the Hagen-Poisseuille equation.
Hematocrit
;
Hemoglobins
;
Oxygen
;
Polycythemia
;
Shock
;
Shock, Septic