1.Clinical Characteristics of Postoperative Delirium after Urological Surgery.
Seong Yoon JUNG ; Ho Cheol CHOI ; Sung Hyup CHOI
Korean Journal of Urology 2001;42(2):218-222
PURPOSE: Delirium in the elderly is common in the postoperative period but there are only few reports on detailed studies of this condition. Number of urologic patients with postoperative delirium was increas ed in our hospital for recent 24 months. The clinical characteristics of patients with postoperative delirium was analyzed retrospectively. MATERIALS AND METHODS: We selected the patients with postoperative delirium from 1010 patients who had undergone urological surgery under general or spinal anesthesia in the period from Jan. 1997 to Dec. 1999. Diagnosis of postoperative delirium was established with Diagnostic and Statistical Manual of Mental Disorders(DAM-III-R) by psychiatric clinicians. Onset and recovery of symptoms, risk factors, previous psychiatric clinicians. Onset and recovery of symptoms, risk factors, previous psychiatric disorder, relationship with anesthesia, drugs, and surgical procedures, concomittant medical conditions, and complications were retrospectively reviewed. RESULTS: Postoperative delirium was observed in 13 patients (1.3%). All patients were male and mean age was 70.4 years (46-86 years). Surgical procedures included TURP(8 patients), cystectomy (3 patients), nephroureterectomy (1 patient), and bladder rupture repair (1 patient). Delirium became apparent between one day and two days after the operation (mean 32.2 hours) and lasted for up to 7 days (mean 53 hours). Several factors such as older age (>65 years), male patient, longterm medication, past history of CVA, memory impairment, hearing difficulty, traumatic brain contusion, and obsessive personality were thought to be risk factors of postoperative delirium. Treatment with Haloperidol(R) intramuscular injection (2.5-5mg, every 30 minutes, 2-4 times until symptom resolution was achieved) with or without Ativan(R) intravenous injection (2mg) were effective. Complete symptom recovery was seen in 92.3% (12/13) of patients. One patient (7.7%) with previous history of dementia had persistent memory disturbance and disorientation during follow-up periods. CONCLUSIONS: Generally, postoperative delirium is an acute transient confusional state without considerable sequeles. Treatment is sedation and prevention of inadvertent accident associated with confusional state. Urologic surgeon must be attentive to the development of this illness especially when high risk factors were present.
Aged
;
Anesthesia
;
Anesthesia, Spinal
;
Brain Injuries
;
Cystectomy
;
Delirium*
;
Dementia
;
Diagnosis
;
Follow-Up Studies
;
Hearing
;
Humans
;
Injections, Intramuscular
;
Injections, Intravenous
;
Male
;
Memory
;
Postoperative Period
;
Retrospective Studies
;
Risk Factors
;
Rupture
;
Urinary Bladder
2.A Medicolegal Consideration on Persistent Vegetative State in Korea.
Jang Han KIM ; Jung Bin LEE ; Yoon Seong LEE
Korean Journal of Legal Medicine 1999;23(1):35-42
This treatise summarizes the medical facts about the persistent vegetative state(PVS) and the associated issues. In August 1998, the opinions of the 380 neurologists and the 1007 neurosurgeons are inquired about the diagnostic criteria of PVS, the degree and the withdrawal of treatment on PVS patients. The response rate is 18.8%. The diagnostic criteria of PVS is determined by the items approved above 5007o of responses. (1) no evidence of cerebral function and an inability to interact with visual, auditory stimuli and follow commands. (2) maintaining the respiratory function with spontaneous respiration and normal respiratory pattern. (3) spontaneous eye opening and eye ball movements without sustained tracking. (4) variably preserved brain stem reflexes. (5) presence of sleep-wake cycles. (6) (1)-(5) symptoms should be persist for 6 months after the development of vegetative state. (7) the diagnostic criteria of PVS should be applied more than 3 times during the minimum observation period. (8) this diagnostic criteria of PVS could be applied to adults over 7 ages. As to the degree of treatment, nasogastric tube feeding and air-way keeping through the tracheostomy are approved over 9007b. Also antibiotics can be used in infection. As to the withdrawal of treatment, do not resuscitate order of patient s family is accepted by 46.1% in an emergency condition like cardiac arrest. But discharge against medical advice by the patient s family is accepted by 73.107o in non-emergency condition. In the case of neonates, parents decision is more determinative than any other thing.
Adult
;
Anti-Bacterial Agents
;
Brain Stem
;
Emergencies
;
Enteral Nutrition
;
Heart Arrest
;
Humans
;
Infant, Newborn
;
Korea*
;
Parents
;
Persistent Vegetative State*
;
Reflex
;
Respiration
;
Tracheostomy
3.Medicolegal Autopsies in Mdeical School, 1996.
Yoon Seong LEE ; Soong Deok LEE ; Jung Bin LEE
Korean Journal of Legal Medicine 1997;21(1):17-22
We present 20 medicolegal autopsies performed at the Department of Forensic medicine, Seoul National University Medical College during the year of 1996. In Korea Postmortem Invesigation (PI) system is not established and is needed greatly provide the basic considerations on PI system, we detailed the cases with impediments to be overcome. Among the 20 cases, 13cases were unusual deaths and 6 cases were natural. For unusual deaths, 7 were by mechanical injuries, four by asphyxia. Test for toxic stance was the most needed part to be solved.
Asphyxia
;
Autopsy*
;
Forensic Medicine
;
Humans
;
Korea
;
Seoul
4.Computed Tomography and Magnetic Resonance Images of Adrenocortical Oncocytoma Cases.
Jung Hee YOON ; Seong Sook CHA ; Seong Kuk YOON
Journal of Korean Medical Science 2014;29(3):445-451
We present two cases of adrenocortical oncocytomas that were well-delineated on multi-detector computed tomography and magnetic resonance imaging. The images showed a well-enhanced large mass with multiple stippled calcifications in a 10-yr-old girl who was consulted due to precocious puberty. A well-enhanced solid mass with necrotic components was incidentally noticed in a 54-yr-old man. These lesions were resected and diagnosed as adrenocortical oncocytomas through immunohistochemical studies and electron microscopy. Adrenocortical oncocytomas are rare disease entities, therefore, we report these interesting, rare adrenocortical oncocytomas here with radiologic findings, and discuss differential diagnosis.
Adenoma, Oxyphilic/*diagnosis/pathology/radiography
;
Adrenal Gland Neoplasms/*diagnosis/pathology/radiography
;
Child
;
Diagnosis, Differential
;
Female
;
Hemorrhage
;
Humans
;
Immunohistochemistry
;
Magnetic Resonance Imaging
;
Male
;
Middle Aged
;
Tomography, X-Ray Computed
5.Evaluation of the CellaVision Advanced RBC Application for Detecting Red Blood Cell Morphological Abnormalities
Seong Jun PARK ; Jung YOON ; Jung Ah KWON ; Soo-Young YOON
Annals of Laboratory Medicine 2021;41(1):44-50
Background:
The Advanced RBC Application of the CellaVision DM9600 system (CellaVision AB, Lund, Sweden) automatically characterizes and classifies red blood cells (RBCs) into 21 morphological categories based on their size, color, shape, and inclusions. We evaluated the diagnostic performance of the CellaVision Advanced RBC Application with respect to the classification and grading of RBC morphological abnormalities in accordance with the 2015 International Council for Standardization in Haematology (ICSH) guidelines.
Methods:
A total of 223 samples, including 123 with RBC morphological abnormalities and 100 from healthy controls, were included. Seven RBC morphological abnormalities and their grading obtained with CellaVision DM9600 pre- and post-classification were compared with the results obtained using manual microscopic examination. The grading cut-off percentages were determined in accordance with the 2015 ICSH guidelines. The sensitivity and specificity of the CellaVision DM9600 system were evaluated using the manual microscopic examination results as a true positive.
Results:
In pre-classification, > 90% sensitivity was observed for target cells, tear drop cells, and schistocytes, while > 90% specificity was observed for acanthocytes, spherocytes, target cells, and tear drop cells. In post-classification, the detection sensitivity and specificity of most RBC morphological abnormalities increased, except for schistocytes (sensitivity) and acanthocytes (specificity). The grade agreement rates ranged from 35.9% (echinocytes) to 89.7% (spherocytes) in pre-classification and from 46.2% (echinocytes) to 90.1% (spherocytes) in post-classification. The agreement rate of samples with withinone grade difference exceeded 90% in most categories, except for schistocytes and echinocytes.
Conclusions
The Advanced RBC Application of CellaVision DM9600 is a valuable screening tool for detecting RBC morphological abnormalities.
6.Eccrine Poroma on the Genitalia.
Seong Rak SEO ; In Jae JEONG ; Hee Jung LEE ; Moon Soo YOON ; Dong Hyun KIM
Korean Journal of Dermatology 2016;54(8):656-657
No abstract available.
Genitalia*
;
Poroma*
7.Detection of Chemokine Gene Expression Induced by IL-12/IL-2 in Renca Tumor.
Jong Wook PARK ; Soo Jung YOON ; Seong Il SUH ; In Sook HAN ; Young Kwon KIM
Korean Journal of Immunology 1999;21(1):17-24
In order to evaluate antitumor rnechanisms of interleukin (IL)-12/IL-2 that has been shown significant tumor suppressive activity on established primary and metastatic Renca tumor, we studied chemokine gene expression induced by direct action of IL- 12/IL-2 or cytokine cascade. IL-12/IL-2 induced gene expression of interferon gamma (IFN-r) and granulocyte monocyte-colony stimulating factor (GM-CSF) in splenocytes, and it induced gene expression of monokine induced by IFN-r (Mig), interferon inducible protein 10 (IP- 10), SDF-1, macrophage inflammatory protein (MIP)-1a, MIP-1B, MIP-2, monocyte chemotactic protein (MCP)-1, and Rantes in tumor mass. However IL-12/IL-2 could not induce these chemokines in tumor mass of GKO mice and Renca cell in vitro. IL- 12 also did not increased chemokine gene expression in Renca cell in vitro, but IFN-r induced gene expression of Mig, IP-10, MCP-1 in Renca cell in vitro. In the chemotaxis assay, culture supernatant of Renca cell stimulated with IFN-r increased splenocyte migration in vitro. All these data suggest IL-12/IL-2 can induce IFN-r-chemokine cascade in tumor mass, and Mig, IP-10, MCP-1 produced from tumor cell may play an important role for initial immune cell migration into tumor mass.
Animals
;
Cell Movement
;
Chemokine CCL5
;
Chemokine CXCL10
;
Chemokines
;
Chemotaxis
;
Gene Expression*
;
Granulocytes
;
Interferons
;
Interleukins
;
Macrophages
;
Mice
;
Monocytes
8.Granuloma Annulare Occurring on Preceding Herpes Zoster as an Isotopic Response.
Seong Rak SEO ; Jae Yang PARK ; Hee Jung LEE ; Dong Hyun KIM ; Moon Soo YOON
Korean Journal of Dermatology 2016;54(2):156-158
No abstract available.
Granuloma Annulare*
;
Granuloma*
;
Herpes Zoster*
9.An Analysis of Stress Pattern in the Coracoclavicular Ligaments with Scapular Movements: A Cadaveric Study Using Finite Element Model.
Yoon Sang KIM ; In Sung KIM ; Yon Sik YOO ; Seong Wook JANG ; Cheol Jung YANG
Clinics in Shoulder and Elbow 2015;18(3):152-158
BACKGROUND: Acromioclavicular (AC) stability is maintained through a complex combination of soft-tissue restraints that include coracoclavicular (CC), AC ligament and overlying muscles. Among these structures, the role of the CC ligament has continued to be studied because of its importance on shoulder kinematics, especially after AC injury. This study was designed to determine the geometric change of conoid and trapezoid ligaments and resulting stresses on these ligaments according to various scapular motions. METHODS: The scapuloclavicular (SC) complex was isolated from a fresh-frozen cadaver by removing all soft tissues except the AC and CC ligaments. The anatomically aligned SC complex was then scanned with a high-resolution computed tomography scanner into 0.6-mm slices. The Finite element model of the SC complex was obtained and used for calculating the stress on different parts of the CC ligaments with simulated movements of the scapula. RESULTS: Average stress on the conoid ligament during anterior tilt, internal rotation, and scapular protraction was higher, whereas the stress on the trapezoid ligament was more prominent during posterior tilt, external rotation, and retraction. CONCLUSIONS: We conclude that CC ligament plays an integral role in regulating horizontal SC motion as well as complex motions indicated by increased stress over the ligament with an incremental scapular position change. The conoid ligament is the key structure restraining scapular protraction that might occur in high-grade AC dislocation. Hence in CC ligament reconstructions involving only single bundle, every attempt must be made to reconstruct conoid part of CC ligament as anatomically as possible.
Biomechanical Phenomena
;
Cadaver*
;
Dislocations
;
Ligaments*
;
Muscles
;
Scapula
;
Shoulder
10.Chronic Desquamative Gingivitis.
Jung Hoon YOON ; Seong Ho CHOI
The Journal of the Korean Academy of Periodontology 2000;30(3):631-638
Desquamative gingivitis is characterized by a diffuse erythema of the free and attached gingiva associated with areas of vesiculation, erosion, and desquamation. Desquamative gingivitis is not a distinct disease entity but represents a reaction pattern of the gingiva to various stimuli. Pemphigus vulgaris, cicatricial pemphigoid, and lichen planus may presents as desquamative gingivitis. We observed 3 patients whose disease was limited to the gingiva, and studied them by light and direct immunofluorescence microscope. We classified them according to clinical, histologic, and immunopathologic observations. Identification of the underlying causes of desquamative gingivitis is of utmost importance and is dependent upon clinical, histologic, and immunologic criteria.
Diagnosis, Differential
;
Erythema
;
Fluorescent Antibody Technique
;
Fluorescent Antibody Technique, Direct
;
Gingiva
;
Gingivitis*
;
Humans
;
Lichen Planus
;
Pemphigoid, Benign Mucous Membrane
;
Pemphigus