1.Extracorporeal Membrane Oxygenation Therapy for Aspiration Pneumonia in a Patient following Left Pneumonectomy for Lung Cancer.
Korean Journal of Critical Care Medicine 2016;31(2):156-161
A patient had undergone left pneumonectomy for lung cancer and had an increased risk of fatal complications such as pneumonia, including acute respiratory distress syndrome (ARDS). The treatment effects of veno-venous extracorporeal membrane oxygenation (VV-ECMO) for ARDS of postpneumonectomy patient are uncertain. A 74-year-old man with one lung experienced aspiration pneumonia while swallowing pills after the operation, and his condition progressed to ARDS within a day. He was successfully treated with VV-ECMO support and intensive care unit care.
Aged
;
Deglutition
;
Extracorporeal Membrane Oxygenation*
;
Humans
;
Intensive Care Units
;
Lung Neoplasms*
;
Lung*
;
Pneumonectomy*
;
Pneumonia
;
Pneumonia, Aspiration*
;
Respiratory Distress Syndrome, Adult
2.Extracorporeal Membrane Oxygenation Therapy for Aspiration Pneumonia in a Patient following Left Pneumonectomy for Lung Cancer
The Korean Journal of Critical Care Medicine 2016;31(2):156-161
A patient had undergone left pneumonectomy for lung cancer and had an increased risk of fatal complications such as pneumonia, including acute respiratory distress syndrome (ARDS). The treatment effects of veno-venous extracorporeal membrane oxygenation (VV-ECMO) for ARDS of postpneumonectomy patient are uncertain. A 74-year-old man with one lung experienced aspiration pneumonia while swallowing pills after the operation, and his condition progressed to ARDS within a day. He was successfully treated with VV-ECMO support and intensive care unit care.
Aged
;
Deglutition
;
Extracorporeal Membrane Oxygenation
;
Humans
;
Intensive Care Units
;
Lung Neoplasms
;
Lung
;
Pneumonectomy
;
Pneumonia
;
Pneumonia, Aspiration
;
Respiratory Distress Syndrome, Adult
3.Hybrid Procedure for a Traumatic Aortic Rupture Consisting of Endovascular Repair and Minimally Invasive Arch Vessel Transposition without Sternotomy.
Yang Gi RYU ; Suk Jung CHOO ; Ju Yong LIM ; Hyun Ki YOON ; Cheol Hyun CHUNG
Journal of Korean Medical Science 2010;25(1):142-144
Emergency surgical repair for acute traumatic aortic ruptures has been associated with a high peri-procedural mortality rate. Endovascular stent-grafting, as a less invasive procedure, has shown encouraging results. This report describes a patient with a short landing zone, who was treated by transposing the supra-aortic branch without sternotomy, followed by covered stent-grafting with an extended proximal bare portion to enhance fixation.
Acute Disease
;
Aged
;
Aortic Rupture/diagnosis/radiography/*surgery
;
Female
;
Humans
;
Stents
;
Sternotomy
;
Subclavian Artery
;
Surgical Procedures, Minimally Invasive
;
Tomography, X-Ray Computed
4.Comparison of Patency and Viability in Fresh and Cryopreserved Arterialand Venous Allograft Conduits in Dogs.
Hyun SONG ; Shin Kwang KANG ; Yang Gi RYU ; Yong Jin KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2008;41(2):149-159
BACKGROUND: With increasing coronary bypass and peripheral vascular surgeries, the demand for homologous vascular or synthetic conduits has continued to grow, but wide-spread application has been limited by dismal patency rates. Although cryopreserved allograft valves may provide a suitable alternative, current viability or patency of implanted allograft vascular conduits has been unsatisfactory. MATERIAL AND METHOD: We serially analyzed the outcomes of canine femoral artery and saphenous vein allograft implants after storage in either 4degrees C or -170degrees C. RESULT: There were no differences in graft flow rate (patency) (p=0.264), rate of thrombosis (p=0.264), presence of endothelium (p=0.587), or immunohistochemical staining for thrombomodulin (p=0.657) were detected between grafts stored in 4degrees C and -170degrees C. Greater flow occurred in the arterial grafts versus the venous grafts (p=0.030), irrespective of the preservation method, with a significantly lower incidence of thrombosis (p=0.030) in arterial allografts. There was a correlation coefficient of -0.654 between thrombosis and positive immunohistochemical staining for thrombomodulin (p=0.006) and a correlation coefficient of 0.520 (p=0.0049) between the endothelial presence and positive immunohistochemical staining for thrombomodulin. The relationship between the presence of endothelium and thrombomodulin expression failed to show any correlation within the first 2 weeks (p=0.306). However, a strong correlation was seen after 1 month (p=0.0008). CONCLUSION: Tissue storage in either 4degrees C or -170degrees C in 10% DMSO/RPMI-1640 preservation solution preserved grafts equally well. In terms of thrombosis and graft patency, arterial grafts were superior to venous grafts. Considering the poor correlation between thrombomodulin expression and the presence of an endothelium in the implanted graft within the first two weeks, grafts in this period would not be thromboresistant.
Animals
;
Blood Vessel Prosthesis
;
Cryopreservation
;
Dogs
;
Endothelium
;
Femoral Artery
;
Incidence
;
Saphenous Vein
;
Thrombomodulin
;
Thrombosis
;
Transplantation, Homologous
;
Transplants
5.A Case Report of Acute Type II Aortic Dissection in a Patient with Marfan's Syndrome and Who Was 24 Weeks Pregnant: A case report.
Ui Dong HWANG ; Cheol Hyun CHUNG ; Yang Gi RYU ; Juyong LIM
The Korean Journal of Thoracic and Cardiovascular Surgery 2007;40(7):508-511
The causes of aortic dissection are usually hypertension, connective tissue disease such as Marfan syndrome, congenital valvular abnormality such as bicuspid aortic valve, iatrogenic injury, pregnancy and drugs. Previous studies have shown that 50% of all dissections in women less than 40 years age were associated with pregnancy. Almost all aortic dissections during pregnancy occur during the third trimester or during labor and delivery. Marfan's syndrome is a particularly important predisposing factor for aortic dissection during pregnancy. We report here on a case of surgical treatment for acute type II aortic dissection in a Marfan syndrome patient who was 24 weeks pregnant, and we include a review of literature.
Aortic Valve
;
Bicuspid
;
Causality
;
Connective Tissue Diseases
;
Female
;
Humans
;
Hypertension
;
Marfan Syndrome*
;
Pregnancy
;
Pregnancy Trimester, Third
6.Pacing Wire Removal Via a Right Atriotomy: A Patient with Infected Permanent Pacemaker and Who Previously Underwent CABG: A case report.
Yun Seok KIM ; Hyun SONG ; Yang Gi RYU ; Sung Ho JUNG
The Korean Journal of Thoracic and Cardiovascular Surgery 2009;42(2):256-258
A 63-year-old man who had a permanent pacemaker placed 17 years ago presented to us with local inflammatory signs on his chest. The skin was opened to remove the permanent pacemaker. However, the pacing wire was not easily removed. So, the permanent pacemaker was removed from the chest with leaving the remnant wire inside. However, the local infection recurred because of the remnant wire. Right thoracotomy was performed and cardiopulmonary bypass was started. After total circulatory arrest, the right atrium was opened and the wire was completely removed.
Cardiopulmonary Bypass
;
Heart Atria
;
Humans
;
Middle Aged
;
Skin
;
Thoracic Surgery
;
Thoracotomy
;
Thorax
7.A Case of Erosive Pustular Dermatosis of the Scalp.
Byung Gi BAE ; Dong Jin RYU ; Kee Yang CHUNG ; Hee Jung KIM
Korean Journal of Dermatology 2009;47(6):702-705
Erosive pustular dermatosis of the scalp is a rare disorder of the elderly and it is characterized by pustular, erosive and crusted lesions of the scalp with progressive scarring alopecia. The predisposing factors have been reported to be trauma, including mechanical trauma, skin grafting, surgery and prolonged exposure of a bald scalp to UV light. Yet the laboratory data, the bacteriological and mycological investigations and the histopathologic findings of the previously reported cases were generally negative and not diagnostic. We herein present a case of erosive pustular dermatosis of the scalp that occurred after mechanical trauma on the previous skin graft site. This type of case has not been previously reported in the Korean dermatologic literature.
Aged
;
Alopecia
;
Cicatrix
;
Humans
;
Scalp
;
Skin
;
Skin Diseases
;
Skin Transplantation
;
Transplants
;
Ultraviolet Rays
8.Factors Associated with Daily Completion Rates in a Smartphone-Based Ecological Momentary Assessment Study
Yong Sook YANG ; Gi Wook RYU ; Mona CHOI
Healthcare Informatics Research 2019;25(4):332-337
OBJECTIVES: Ecological momentary assessment (EMA) methods are known to have validity for capturing momentary changes in variables over time. However, data quality relies on the completion rates, which are influenced by both participants' characteristics and study designs. This study applied an EMA method using a mobile application to assess momentary moods and stress levels in patients with Moyamoya disease to examine variables associated with EMA completion rates. METHODS: Adults with Moyamoya disease were recruited from a tertiary hospital in Seoul. Patients with cognitive impairment were excluded. The EMA survey was loaded as a mobile application onto the participants' personal smartphones. Notifications were sent at semi-random intervals four times a day for seven consecutive days. Daily completion rates were calculated as the percentage of completed responses per day; overall completion rates were calculated as the proportion of completed responses per total of the 28 scheduled measures in the study and assessed through a descriptive analysis, t-test, ANOVA, and regression analysis, with mixed modeling to identify the point at which the daily completion rate significantly decreased. RESULTS: A total of 98 participants responded (mean age, 41.00 ± 10.30 years; 69.4% female; 75.5% married). The overall completion rate was 70.66%, with no gender or age differences found. The daily completion rate decreased significantly after day 5 (p = 0.029). CONCLUSIONS: Obtaining a good completion rate is essential for quality data in EMA methods. Strategic approaches to a study design should be established to encourage participants throughout a study to improve completion rates.
Adult
;
Cognition Disorders
;
Data Accuracy
;
Epidemiologic Factors
;
Female
;
Guideline Adherence
;
Humans
;
Methods
;
Mobile Applications
;
Moyamoya Disease
;
Seoul
;
Smartphone
;
Tertiary Care Centers
9.Ecological Momentary Assessment Using Smartphone-Based Mobile Application for Affect and Stress Assessment.
Yong Sook YANG ; Gi Wook RYU ; Insu HAN ; Seojin OH ; Mona CHOI
Healthcare Informatics Research 2018;24(4):381-386
OBJECTIVES: This study aimed to describe the process of utilizing a mobile application for ecological momentary assessment (EMA) to collect data on stress and mood in daily life setting. METHODS: A mobile application for the Android operating system was developed and installed with a set of questions regarding momentary mood and stress into a smartphone of a participant. The application sets alarms at semi-random intervals in 60-minute blocks, four times a day for 7 days. After obtaining all momentary affect and stress, the questions to assess the usability of the mobile EMA application were also administered. RESULTS: The data were collected from 97 police officers working in Gyeonggi Province of South Korea. The mean completion rate was 60.0% ranging from 3.5% to 100%. The means of positive and negative affect were 18.34 of 28 and 19.09 of 63. The mean stress was 17.92 of 40. Participants responded that the mobile application correctly measured their affect (4.34 ± 0.83) and stress (4.48 ± 0.62) of 5-point Likert scale. CONCLUSIONS: Our study investigated the process of utilizing a mobile application to assess momentary affect and stress at repeated times. We found challenges regarding adherence to the research protocol, such as completion and delay of answering after alarm notification. Despite this inherent issue of adherence to the research protocol, the EMA still has advantages of reducing recall bias and assessing the actual moment of interest at multiple time points that improves ecological validity.
Bias (Epidemiology)
;
Gyeonggi-do
;
Humans
;
Korea
;
Methyltestosterone
;
Mobile Applications*
;
Police
;
Smartphone
;
Stress, Psychological
10.A case of congenital adrenal hyperplasia presenting as adrenal incidentaloma.
Myung Jin CHOI ; Byoung Ho KIM ; Kyoung Min SOHN ; Ha Na YANG ; Ohk Hyun RYU ; Moon Gi CHOI ; Hyung Joon YOO
Korean Journal of Medicine 2009;77(Suppl 1):S103-S108
Congenital adrenal hyperplasia, an autosomal recessive disorder resulting from an enzymatic defect during cortisol biosynthesis (i.e., 21-hydroxylase deficiency), is characterized by impaired production of cortisol with or without impaired production of aldosterone, chronic stimulation of the adrenal cortex by corticotropin, and overproduction of cortisol precursors and androgens. The severity of the hormonal abnormalities and clinical symptoms depend on the degree of enzymatic activity. Phenotypes are classified into the following types: the severe salt-wasting type, the simple virilizing type, and the non-classic type. Despite adequate treatment, patients may be at risk for salt-wasting adrenal crisis, precocious puberty, short stature, infertility, psychosocial problems, and tumor formation, including adrenal incidentaloma. Here we present a case of adrenal incidentaloma in a 14-year-old boy who was eventually diagnosed with congenital adrenal hyperplasia due to a 21-hydroxylase deficiency. The patient had a history of salt-wasting adrenal crisis, but survived without continuous glucocorticoid and mineralocorticoid treatment. Note also that both plasma aldosterone and plasma renin activity were elevated in this case.
Adolescent
;
Adrenal Cortex
;
Adrenal Gland Neoplasms
;
Adrenal Hyperplasia, Congenital
;
Adrenocorticotropic Hormone
;
Aldosterone
;
Androgens
;
Humans
;
Hydrocortisone
;
Infertility
;
Phenotype
;
Plasma
;
Puberty, Precocious
;
Renin
;
Steroid 21-Hydroxylase