1.Transcatheter Aortic Valve Replacement versus Sutureless Aortic Valve Replacement:A Single Center Retrospective Cohort Study
Young Hak CHUNG ; Seung Hyun LEE ; Young-Guk KO ; Sak LEE ; Chi-Young SHIM ; Chul-Min AHN ; Geu-Ru HONG ; Jae-Kwang SHIM ; Young-Lan KWAK ; Myeong-Ki HONG
Yonsei Medical Journal 2021;62(10):885-894
Purpose:
This study sought to compare clinical outcomes between transcatheter aortic valve replacement (TAVR) and sutureless aortic valve replacement (SU-AVR).
Materials and Methods:
In total, 320 patients with symptomatic severe aortic stenosis who underwent TAVR (n=254) or SU-AVR (n=66) at Severance Cardiovascular Hospital between July 2011 and September 2019 were included for analysis. Propensity score matching and inverse probability weighted adjustment were performed to adjust for confounding baseline characteristics. Outcomes defined by the Valve Academic Research Consortium-2 in 62 patients pairs were compared.
Results:
Device success (79.0% vs. 79.0%, p>0.999) and 30-day mortality (4.8% vs. 0.0%, p=0.244) did not differ between the TAVR and SU-AVR groups. The TAVR group developed more frequent mild or moderate paravalvular leakage (59.7% vs. 8.1%, p<0.001), whereas SU-AVR was associated with higher rates of major or life-threatening bleeding (9.7% vs. 22.6%, p=0.040), acute kidney injury (8.1% vs. 21.0%, p=0.041), and new-onset atrial fibrillation (4.8% vs. 32.3%. p<0.001) at 30 days, along with longer stays in the intensive care unit (ICU) (1.9±1.6 days vs. 5.9±9.2 days, p=0.009) and hospital (7.1±7.9 days vs. 13.1±8.8 days, p<0.001). The TAVR group showed a trend towards a higher 1-year all-cause mortality, compared with the SU-AVR group (7.0% vs 1.7%, p=0.149). Cardiovascular mortality, however, did not differ significantly (1.6% vs 1.7%, p=0.960).
Conclusion
TAVR achieved a similar 1-year survival rate free from cardiovascular mortality as SU-AVR and was associated with a lower incidence of complications, except for paravalvular leakage, and shorter stays in the ICU and hospital.
2.Transcatheter Aortic Valve Replacement versus Sutureless Aortic Valve Replacement:A Single Center Retrospective Cohort Study
Young Hak CHUNG ; Seung Hyun LEE ; Young-Guk KO ; Sak LEE ; Chi-Young SHIM ; Chul-Min AHN ; Geu-Ru HONG ; Jae-Kwang SHIM ; Young-Lan KWAK ; Myeong-Ki HONG
Yonsei Medical Journal 2021;62(10):885-894
Purpose:
This study sought to compare clinical outcomes between transcatheter aortic valve replacement (TAVR) and sutureless aortic valve replacement (SU-AVR).
Materials and Methods:
In total, 320 patients with symptomatic severe aortic stenosis who underwent TAVR (n=254) or SU-AVR (n=66) at Severance Cardiovascular Hospital between July 2011 and September 2019 were included for analysis. Propensity score matching and inverse probability weighted adjustment were performed to adjust for confounding baseline characteristics. Outcomes defined by the Valve Academic Research Consortium-2 in 62 patients pairs were compared.
Results:
Device success (79.0% vs. 79.0%, p>0.999) and 30-day mortality (4.8% vs. 0.0%, p=0.244) did not differ between the TAVR and SU-AVR groups. The TAVR group developed more frequent mild or moderate paravalvular leakage (59.7% vs. 8.1%, p<0.001), whereas SU-AVR was associated with higher rates of major or life-threatening bleeding (9.7% vs. 22.6%, p=0.040), acute kidney injury (8.1% vs. 21.0%, p=0.041), and new-onset atrial fibrillation (4.8% vs. 32.3%. p<0.001) at 30 days, along with longer stays in the intensive care unit (ICU) (1.9±1.6 days vs. 5.9±9.2 days, p=0.009) and hospital (7.1±7.9 days vs. 13.1±8.8 days, p<0.001). The TAVR group showed a trend towards a higher 1-year all-cause mortality, compared with the SU-AVR group (7.0% vs 1.7%, p=0.149). Cardiovascular mortality, however, did not differ significantly (1.6% vs 1.7%, p=0.960).
Conclusion
TAVR achieved a similar 1-year survival rate free from cardiovascular mortality as SU-AVR and was associated with a lower incidence of complications, except for paravalvular leakage, and shorter stays in the ICU and hospital.
3.Effects of a Short-term Life Review on Spiritual Well-being, Depression, and Anxiety in Terminally Ill Cancer Patients.
Sung Hee AHN ; Young Lan AN ; Yang Sook YOO ; Michiyo ANDO ; Soo Jin YOON
Journal of Korean Academy of Nursing 2012;42(1):28-35
PURPOSE: This study was done to evaluate the effects of a short-term life review on spiritual well-being, depression, and anxiety in patients with terminal cancer. METHODS: The study used a pre posttest quasi experimental design with a nonequivalent control group. Measurement instruments included the Functional Assessment of Chronic Illness Therapy-Spiritual scale (FACIT-Sp12) and the Hospital Anxiety and Depression Scale (HADS). Participants were 32 patients with terminal cancer who were receiving chemotherapy or palliative care at hospitals or at home. Eighteen patients were assigned to the experimental group and 14 to the control group. A sixty minute short-term life review session was held twice a week as the intervention with the experimental group. RESULTS: There was a statistically significant increase in spiritual well-being in the experimental group compared to the control group. There were also significant decreases in depression and anxiety in the experimental group compared to the control group. CONCLUSION: The results indicate that a short-term life review can be used as a nursing intervention for enhancing the spiritual well-being of patients with terminal cancer.
Aged
;
*Anxiety
;
Chronic Disease
;
*Depression
;
Female
;
Humans
;
Interviews as Topic
;
Male
;
Middle Aged
;
Neoplasms/*psychology
;
Palliative Care
;
*Spirituality
;
Terminally Ill
4.Efficacy comparison of ramosetron with ondansetron on preventing nausea and vomiting in high-risk patients following spine surgery with a single bolus of dexamethasone as an adjunct.
Yong Seon CHOI ; Jae Kwang SHIM ; Seung Ho AHN ; Young Lan KWAK
Korean Journal of Anesthesiology 2012;62(6):543-547
BACKGROUND: Despite the development of a new class of antiemetics, postoperative nausea and vomiting (PONV) still remains a frequent and distressing complication. We compared the prophylactic antiemetic effect of administering dexamethasone 5 mg as an adjunct to ramosetron and ondansetron in patients at high-risk for PONV following lumbar spinal surgery. METHODS: In this randomized, double-blind study, 120 female non-smoking patients with intravenous patient-controlled analgesia (PCA) received ramosetron 0.3 mg plus dexamethasone 5 mg (group R + D) or ondansetron 4 mg plus dexamethasone 5 mg (group O + D) intravenously. Fentanyl-based PCA was administered for 48 hr postoperatively; ramosetron 0.3 mg or ondansetron 12 mg was added to the PCA regimen according to the allocated group. The incidence of PONV and rescue antiemetic were assessed for 48 hr postoperatively at 0-6, 6-24, and 24-48 hr. RESULTS: The overall incidence of PONV did not differ between the groups (50% vs. 60%, in groups R + D and O + D, respectively). The overall incidence of nausea was similar between groups (47% vs. 60%, in groups R + D and O + D, respectively). The overall frequency of vomiting was also similar between groups (8% vs. 12%, in groups R + D and O + D, respectively). The severity of nausea and the overall use of rescue antiemetic were not different between groups. CONCLUSIONS: The antiemetic efficacy of ramosetron plus dexamethasone was similar to that of ondansetron plus dexamethasone on preventing PONV in high-risk patients undergoing lumbar spinal surgery.
Analgesia, Patient-Controlled
;
Antiemetics
;
Benzimidazoles
;
Dexamethasone
;
Double-Blind Method
;
Female
;
Humans
;
Incidence
;
Nausea
;
Ondansetron
;
Passive Cutaneous Anaphylaxis
;
Postoperative Nausea and Vomiting
;
Spine
;
Vomiting
5.Efficacy comparison of ramosetron with ondansetron on preventing nausea and vomiting in high-risk patients following spine surgery with a single bolus of dexamethasone as an adjunct.
Yong Seon CHOI ; Jae Kwang SHIM ; Seung Ho AHN ; Young Lan KWAK
Korean Journal of Anesthesiology 2012;62(6):543-547
BACKGROUND: Despite the development of a new class of antiemetics, postoperative nausea and vomiting (PONV) still remains a frequent and distressing complication. We compared the prophylactic antiemetic effect of administering dexamethasone 5 mg as an adjunct to ramosetron and ondansetron in patients at high-risk for PONV following lumbar spinal surgery. METHODS: In this randomized, double-blind study, 120 female non-smoking patients with intravenous patient-controlled analgesia (PCA) received ramosetron 0.3 mg plus dexamethasone 5 mg (group R + D) or ondansetron 4 mg plus dexamethasone 5 mg (group O + D) intravenously. Fentanyl-based PCA was administered for 48 hr postoperatively; ramosetron 0.3 mg or ondansetron 12 mg was added to the PCA regimen according to the allocated group. The incidence of PONV and rescue antiemetic were assessed for 48 hr postoperatively at 0-6, 6-24, and 24-48 hr. RESULTS: The overall incidence of PONV did not differ between the groups (50% vs. 60%, in groups R + D and O + D, respectively). The overall incidence of nausea was similar between groups (47% vs. 60%, in groups R + D and O + D, respectively). The overall frequency of vomiting was also similar between groups (8% vs. 12%, in groups R + D and O + D, respectively). The severity of nausea and the overall use of rescue antiemetic were not different between groups. CONCLUSIONS: The antiemetic efficacy of ramosetron plus dexamethasone was similar to that of ondansetron plus dexamethasone on preventing PONV in high-risk patients undergoing lumbar spinal surgery.
Analgesia, Patient-Controlled
;
Antiemetics
;
Benzimidazoles
;
Dexamethasone
;
Double-Blind Method
;
Female
;
Humans
;
Incidence
;
Nausea
;
Ondansetron
;
Passive Cutaneous Anaphylaxis
;
Postoperative Nausea and Vomiting
;
Spine
;
Vomiting
6.Comparison between Therapeutic Efficacies of Histone Deacetylase Inhibitors and Established Drug Regimens Against Breast Cancer Cells using the Histoculture Drug Response Assay.
Jin Young SEO ; Yoo Mi LEE ; Dong Hyung CHO ; Seon Ae ROH ; Seong gu RO ; Young Lan HYUN ; Seon Young KIM ; Youg Sung KIM ; Tae Won KIM ; Sei Hyun AHN ; Jin Cheon KIM
Journal of Breast Cancer 2009;12(4):241-248
PURPOSE: Histone deacetylase inhibitors (HDACIs) induce accumulation of acetylated histones in nucleosomes, which lead to reactivate gene expression and inhibit the growth and survival of tumor cells. This study evaluated the efficacy of HDACIs in breast cancer cells in comparison with other established drug regimens. METHODS: Drug responses of tumor samples from mastectomy specimens of 78 breast cancer patients were evaluated using the histoculture drug response assay (HDRA). Tumor inhibition rates (IRs) of established drug regimens such as doxorubicin, cyclophosphamide, doxorubicin with cyclophosphamide (AC), paclitaxel, docetaxel and doxorubicin with docetaxel (AT), as well as those of three HDACIs (SAHA, PXD101, and a novel compound CG-2) were evaluate. RESULTS: The percentages of chemosensitive tumors (chemoresponsiveness) were 26.9-60.3% with established regimens and 61.5-73.1% with HDACIs when the cutoff value for inhibition rate was set at 30%. Breast cancer cells appeared to be more chemoresponsive to HDACIs than to established drug regimens. Chemoresponsiveness to AT was the highest among the established drug regimens. A combination regimen offered higher activity than did a single drug (doxorubicin vs AT; p<0.001). HER2/Neu-overexpressing breast cancers were chemosensitive to SAHA and AT (p=0.031 and 0.04, respectively). CONCLUSION: Our findings show that breast cancer cells were sensitive to HDACIs, with therapeutic efficacies comparable to those of established drug regimens. Specific biological markers such as HER2/Neu could be assessed for effectiveness as HDACIs chemosensitivity markers in further clinical trials.
Biomarkers
;
Breast
;
Breast Neoplasms
;
Cyclophosphamide
;
Doxorubicin
;
Gene Expression
;
Histone Deacetylase Inhibitors
;
Histone Deacetylases
;
Histones
;
Humans
;
Hydroxamic Acids
;
Mastectomy
;
Nucleosomes
;
Paclitaxel
;
Sulfonamides
;
Taxoids
7.The Effect of Hydroxyethyl Starch and Crystalloid Solutions on Blood Loss and Transfusion Requirement in Patients with Recent Antiplatelet Therapy Undergoing Off-pump Coronary Bypass Surgery.
So Woon AHN ; Sou Ouk BANG ; Duck Hee CHUN ; Jong Hwa LEE ; Kyung Bae PARK ; Young Lan KWAK
Korean Journal of Anesthesiology 2008;54(2):173-177
BACKGROUND: Hydroxyethylstarch (HES) solutions are commonly used for intravascular volume expansion with varying effect on coagulation depending on molecular weight and mode of hydroxyl substitution.Clopidogrel and aspirin have been shown to reduce cardiovascular complications in patients with coronaryartery occlusive disease which renders patients to higher risk of bleeding complications who require surgery.The purpose of this study was to evaluate the effect of HES 200/0.5, 130/0.4 and crystalloid on blood loss and transfusion requirement in patients with recent antiplatelet therapy undergoing off-pump coronary bypass surgery (OPCAB) in a prospective, randomized trial. METHODS: Sixty patients scheduled for OPCAB, who received clopidogrel and aspirin within 5 days of surgery were randomly allocated into 3 groups:HES 200/0.5 (n = 20), HES 150/0.4 (n = 20), and Crystalloid (n = 20).Routine coagulation profile were measured before and 2 days after the surgery.Amount of perioperative blood loss, transfusion requirement and fluids input and output were recorded until 2 days postoperatively. RESULTS: The 3 groups were similar with regard to patients and operative characteristics.There were no significant differences in the amount of perioperative blood loss and transfusion requirement among the 3 groups. CONCLUSIONS: Both HES solutions were safe to use in terms of blood loss and transfusion requirement in patients undergoing OPCAB who received antiplatelet agents within 5 days of surgery.
Aspirin
;
Hemorrhage
;
Hetastarch
;
Humans
;
Isotonic Solutions
;
Molecular Weight
;
Platelet Aggregation Inhibitors
;
Prospective Studies
;
Ticlopidine
8.Anthropometric Study for Atlas According to Standardized Korean Skeleton (1)-Skull, Upper Limb.
Sang Hee HAN ; Chan PARK ; Kyoung Lan KANG ; Young Buhm HUH ; Jung Hye KIM ; Hee Kyung AHN
Korean Journal of Physical Anthropology 2005;18(2):77-88
Current anatomy education in Korea has been dependent upon foreign textbooks and atlas. Various models and medical devices from overseas were imported and commonly used in Korea, Now, we need to provide our own literatures and graphic data based on Korean population for student education. It is necessary to design, produce and supply medical education, operative tools and treatment supportive devices customized to Korean human body and constitution. Accordingly, this is the time to assemble and deliver medical data to Korean population. In this study, we primarily focused on building musculoskeletal system of Korea population and set our goal as utilizing its graphic data for medical education in Korea. It is first study preparing theoretical foundations of Korean skeletal graphic system based on Korean body shape by comparison with other ethnic groups and foreign graphical models. Simultaneously, we conducted practical construction of the skeletal atlas by employing Korean standard measures. Parameters from the measurement for various types of bones were calculated, and the results were compared with data from foreign atlas and pictures. Individual drawings of bones from skull, upper extremity was made by using parameters we calculated, thus the atlas of Korean skeleton was constructed from artistic anatomical point of view. As a result, there were significant differences between Korean skeletons and the medical drawings from the oversea edition. Because many foreign drawings used data from Caucasians only and there were numerous exaggerated and false dimensions without actual measurement. In conclusion, the result of the study is expected to provide fundamental data for building anatomical atlas about Korean human body structure.
Constitution and Bylaws
;
Education
;
Education, Medical
;
Ethnic Groups
;
Foundations
;
Human Body
;
Humans
;
Korea
;
Musculoskeletal System
;
Skeleton*
;
Skull
;
Upper Extremity*
9.A Validation Study of the Korean -Version of the Montgomery- Asberg Depression Rating Scale.
Yong Min AHN ; Kyu Young LEE ; Jung Seo YI ; Min Hee KANG ; Do Hoon KIM ; Jeong Lan KIM ; Jongho SHIN ; Hyun Kyun SHIN ; Byeong Kil YEON ; Jong Hun LEE ; Sang Keun CHUNG ; In Hee CHO ; Kyung Sik PYO ; Sun Ho HAN ; Yong Sik KIM
Journal of Korean Neuropsychiatric Association 2005;44(4):466-476
OBJECTIVES: The Montgomery-Asberg Depression Rating Scale (MADRS) has been reported as a valid tool for the assessment of depression because it is based on the core symptoms of depression. The aim of this study is to assess the reliability, validity and psychometric properties of the Korean version of the MADRS (K-MADRS). METHODS: One hundred seven patients, including in-patients and out-patients, diagnosed as major depressive disorder according to the DSM-IV criteria were enrolled in this study. They were assessed with K-MADRS, Hamilton Depression Rating Scale (HDRS), Beck Depression Inventory (BDI) and Clinical Global Impression (CGI) to examine cross-validation. Statistical analysis was done using calculation of Cronbach's alpha, Spearman Correlation Coefficient and Principal Components Analysis. RESULTS: The Cronbach's alpha coefficient of K-MADRS was 0.79. And the correlations of each item with total score were statistically significant (r=0.47-0.75, p<0.001). The inter-rater reliabilities of total score (r=0.89, p<0.001) and individual score (r=0.74-0.95, p=0.001) were high. The factor analysis revealed two factors. However, the first one accounted for 39% of variance, while the second one only for 11.1%. The total score of K-MADRS showed a significant correlation with those of HDRS, BDI and CGI (r=0.82, 0.47, 0.74, respectively, p=0.001). CONCLUSION: The K-MADRS showed good reliability and validity for the assessment of severity of depressive symptoms. And it demonstrated similar psychometric properties to previous studies. The K-MADRS is an useful instrument for assessing depressive symptoms in Korea.
Depression*
;
Depressive Disorder, Major
;
Diagnostic and Statistical Manual of Mental Disorders
;
Humans
;
Korea
;
Outpatients
;
Psychometrics
;
Reproducibility of Results
10.Heparin Resistance during Cardiopulmonary Bypass in Infective Endocarditis Patients: A case report.
Sungwon NA ; Sang Boem NAM ; Young Joon OH ; Jong Hwa LEE ; So Woon AHN ; Young Lan KWAK
Korean Journal of Anesthesiology 2005;49(6):868-871
Appropriate anticoagulation is essential for safe cardiopulmonary bypass (CPB). Two patients with infective endocarditis were scheduled for valve replacement. After an intravenous heparin injection for the CPB, the increases in the activated clotting time (ACT) in both patients were less than expected. Subsequent additional heparin administration failed to maintain a sufficient ACT for the CPB, and antithrombin III (AT III) tests during the CPB revealed low activities in both patients. Heparin resistance, due to consumption of circulating AT III as a result of infective endocarditis or prior heparinization, was postulated. While fresh frozen plasma (FFP) could not be timely administered in the first patient, ACT was successfully prolonged after the administration of FFP in the second. It is strongly suggested that adequate management of heparin resistance should be prepared for patients with infective endocarditis who require CPB.
Antithrombin III
;
Antithrombin III Deficiency
;
Cardiopulmonary Bypass*
;
Endocarditis*
;
Heparin*
;
Humans
;
Plasma

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