1.Two Cases of Acute Isolated Sphenoid Sinusitis in Children
Sangwook PARK ; Sang Yun LEE ; Yung Jin JEON
Journal of Rhinology 2020;27(2):127-131
Acute isolated sphenoid sinusitis is a rare disease, and accounts for less than 3% of all sinusitis, especially in young children. Delayed diagnosis or misdiagnosis can occur frequently due to atypical clinical presentations. This can lead to serious complications because of the involvement of anatomically related intracranial structures. Therefore, nasal endoscopy, computed tomography (CT), and magnetic resonance imaging (MRI) are important diagnostic tools to confirm the diagnosis. We report two cases of a previously healthy 6-year-old girl and a 13-year-old boy, whose chief complaints were uncontrolled headache and high fever over 38°C. Physical examination and initial laboratory test results of blood, urine, and cerebrospinal fluid were normal. The diagnosis was made after a brain MRI revealed isolated sphenoid sinusitis. The girl was treated with third generation cephalosporins intravenously. The boy, however, had to undergo an emergent endoscopic sinus surgery as his headache and eyeball-pain symptoms did not resolve by medical treatment alone. Both cases had good outcomes, without neurological sequelae.
2.A Case of Primary Tuberculosis of the Lacrimal Sac Presenting as Epiphora
Sang Yun LEE ; Sangwook PARK ; Jong-Sil LEE ; Yung Jin JEON
Korean Journal of Otolaryngology - Head and Neck Surgery 2021;64(3):202-206
Extra-pulmonary tuberculosis usually progresses as a secondary infection from pulmonary tuberculosis, and tuberculosis of the head and neck region. Tuberculosis of ocular and periocular areas, however, is a rare disease. Among ocular tuberculosis involving the adnexal structures, a few lacrimal sac tuberculosis has been reported. We recently experienced a case of lacrimal sac tuberculosis presenting as epiphora. Examination revealed bilateral nasolacrimal duct obstruction and the patient underwent endoscopic endonasal dacryocystorhinostomy. During the operation, a biopsy taken from the unhealthy looking lacrimal sac filled with caseous necrotic tissue was suggestive of tuberculosis. Histopathological features and further systemic evaluation confirmed tuberculosis. She was treated medically with anti-tubercular agents. The new opening of the lacrimal sac was patent and epiphora was resolved successfully at a year follow up. This report highlights the requirement of high suspicion of tuberculosis, even in the nasolacrimal drainage system.
3.Relationship Between Uncommon Computed Tomography Findings and Clinical Aspects in Patients With Acute Pyelonephritis.
Jang Sik KIM ; Sangwook LEE ; Kwang Woo LEE ; Jun Mo KIM ; Young Ho KIM ; Min Eui KIM
Korean Journal of Urology 2014;55(7):482-486
PURPOSE: Computed tomography (CT) has become popular in the diagnosis of acute pyelonephritis (APN) and its related complications in adults. The aim of this study was to investigate the relationship between uncommon CT findings and clinical and laboratory data in patients with APN. MATERIALS AND METHODS: From July 2009 to July 2012, CT findings and clinical data were collected from 125 female patients with APN. The six uncommon CT findings (excluding a wedge-shaped area of hypoperfusion in the renal parenchyma) studied were perirenal fat infiltration, ureteral wall edema, renal abscess formation, pelvic ascites, periportal edema, and renal scarring. The clinical parameters analyzed were the age and body mass index of the patients as well as the degree and duration of fever. Laboratory parameters related to inflammation and infection included white blood cell count, C-reactive protein (CRP) level, erythrocyte sedimentation rate, pyuria, and bacteriuria. RESULTS: The most common CT finding was perirenal fat infiltration (69 cases, 55%). A longer duration of fever, higher CRP level, and grade of pyuria were related with perirenal fat infiltration (p=0.010, p=0.003, and p=0.049, respectively). The CRP level was significantly higher in patients with renal abscess and ureteral wall edema (p=0.005 and p=0.015, respectively). CONCLUSIONS: The uncommon CT findings that were related to aggravated clinical and laboratory parameters of APN patients were perirenal fat infiltration, ureteral wall edema, and renal abscess formation. The inflammatory reaction and tissue destruction may be more aggressive in patients with these CT findings.
Abscess/etiology/radiography
;
Acute Disease
;
Adipose Tissue/pathology/radiography
;
Adult
;
Edema/etiology/radiography
;
Female
;
Humans
;
Kidney Diseases/radiography
;
Middle Aged
;
Pyelonephritis/complications/pathology/*radiography
;
Retrospective Studies
;
Tomography, X-Ray Computed/methods
;
Ureteral Diseases/etiology/radiography
4.The Prevalence of Lumbar Spine Facet Joint Osteoarthritis and Its Association with Low Back Pain in Selected Korean Populations.
Sangbong KO ; Alexander R VACCARO ; Sangwook LEE ; Jaekun LEE ; Hojin CHANG
Clinics in Orthopedic Surgery 2014;6(4):385-391
BACKGROUND: This study was to evaluate the association of lumbar spine facet joint osteoarthritis (LSFJOA) identified by multi-detector computed tomography (MDCT) with age and low back pain (LBP) in an adult community-based population in Korea. METHODS: A sample of 472 participants (age range, 20 to 84 years) who underwent MDCT imaging for abdominal or urological lesions, not for chief complaints of LBP, were included in this study. LSFJOA based on MDCT findings was characterized using four grades of osteoarthritis of the facet joints. The prevalence of LSFJOA according to age group (below 40 years, 40-49 years, 50-59 years, 60-69 years, and above 70 years), gender, and spinal level was analyzed using chi-square tests and the association between LBP and LSFJOA adjusting for age, gender, and spine level was analyzed using multiple binary logistic regression test. RESULTS: Eighty-three study subjects (17.58%) had LSFJOA (grade > or = 2). The prevalence of LSFJOA was not associated with gender (p = 0.092). The prevalence of LSFJOA increased with age (p = 0.015). The highest prevalence of LSFJOA was observed at L4-5 in men (p = 0.001) and at L5-S1 in women (p = 0.003), and at L5-S1 in the overall population (p = 0.000). LSFJOA was not associated with LBP in men (p = 0.093) but was associated with LBP in women (p = 0.003), especially at L3-4 (p = 0.018) and L5-S1 (p = 0.026). CONCLUSIONS: The prevalence of LSFJOA based on the computed tomography imaging was 17.58% in the adult community Korean population. The prevalence of LSFJOA increased with age, and the highest prevalence was noted at L5-S1. LSFJOA was not associated with LBP at any spinal level and age except at L3-4 and L5-S1 in women.
Adult
;
Aged
;
Aged, 80 and over
;
Female
;
Humans
;
Low Back Pain/*epidemiology
;
*Lumbar Vertebrae
;
Male
;
Middle Aged
;
Multidetector Computed Tomography
;
Osteoarthritis/*epidemiology/radiography
;
Prevalence
;
Republic of Korea/epidemiology
;
Retrospective Studies
;
Young Adult
;
*Zygapophyseal Joint
5.Combined off-pump coronary artery bypass grafting and living donor liver transplantation: A case report.
In Hoo KIM ; Gaab Soo KIM ; Justin Sangwook KO ; Sangmin Maria LEE
Korean Journal of Anesthesiology 2009;57(1):108-112
We report a case of combined off-pump coronary artery bypass grafting (OPCAB) and living-donor liver transplantation (LDLT). Patient was admitted to undergo liver transplantation due to Child C cirrhosis secondary to hepatitis B infection, and incidentally, his preoperative cardiac evaluation revealed silent ischemia due to the two-vessel coronary artery disease (CAD). Patient underwent OPCAB followed by LDLT. There was no perioperative cardiovascular event during the days of hospitalization. From the successful anesthetic experience of a combined OPCAB and LDLT, we cautiously suggest that a combined OPCAB and LDLT could be a surgical treatment for the patients with end-stage liver disease (ESLD) and advanced CAD.
Child
;
Coronary Artery Bypass, Off-Pump
;
Coronary Artery Disease
;
Fibrosis
;
Hepatitis B
;
Hospitalization
;
Humans
;
Ischemia
;
Liver
;
Liver Diseases
;
Liver Transplantation
;
Living Donors
;
Transplants
6.Gross tumor volume dependency on phase sorting methods of four-dimensional computed tomography images for lung cancer.
Soo Yong LEE ; Sangwook LIM ; Sun Young MA ; Jesang YU
Radiation Oncology Journal 2017;35(3):274-280
PURPOSE: To see the gross tumor volume (GTV) dependency according to the phase selection and reconstruction methods, we measured and analyzed the changes of tumor volume and motion at each phase in 20 cases with lung cancer patients who underwent image-guided radiotherapy. MATERIALS AND METHODS: We retrospectively analyzed four-dimensional computed tomography (4D-CT) images in 20 cases of 19 patients who underwent image-guided radiotherapy. The 4D-CT images were reconstructed by the maximum intensity projection (MIP) and the minimum intensity projection (Min-IP) method after sorting phase as 40%–60%, 30%–70%, and 0%–90%. We analyzed the relationship between the range of motion and the change of GTV according to the reconstruction method. RESULTS: The motion ranges of GTVs are statistically significant only for the tumor motion in craniocaudal direction. The discrepancies of GTV volume and motion between MIP and Min-IP increased rapidly as the wider ranges of duty cycles are selected. CONCLUSION: As narrow as possible duty cycle such as 40%–60% and MIP reconstruction was suitable for lung cancer if the respiration was stable. Selecting the reconstruction methods and duty cycle is important for small size and for large motion range tumors.
Four-Dimensional Computed Tomography*
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Methods*
;
Radiotherapy, Image-Guided
;
Range of Motion, Articular
;
Respiration
;
Retrospective Studies
;
Tumor Burden*
7.Gross tumor volume dependency on phase sorting methods of four-dimensional computed tomography images for lung cancer.
Soo Yong LEE ; Sangwook LIM ; Sun Young MA ; Jesang YU
Radiation Oncology Journal 2017;35(3):274-280
PURPOSE: To see the gross tumor volume (GTV) dependency according to the phase selection and reconstruction methods, we measured and analyzed the changes of tumor volume and motion at each phase in 20 cases with lung cancer patients who underwent image-guided radiotherapy. MATERIALS AND METHODS: We retrospectively analyzed four-dimensional computed tomography (4D-CT) images in 20 cases of 19 patients who underwent image-guided radiotherapy. The 4D-CT images were reconstructed by the maximum intensity projection (MIP) and the minimum intensity projection (Min-IP) method after sorting phase as 40%–60%, 30%–70%, and 0%–90%. We analyzed the relationship between the range of motion and the change of GTV according to the reconstruction method. RESULTS: The motion ranges of GTVs are statistically significant only for the tumor motion in craniocaudal direction. The discrepancies of GTV volume and motion between MIP and Min-IP increased rapidly as the wider ranges of duty cycles are selected. CONCLUSION: As narrow as possible duty cycle such as 40%–60% and MIP reconstruction was suitable for lung cancer if the respiration was stable. Selecting the reconstruction methods and duty cycle is important for small size and for large motion range tumors.
Four-Dimensional Computed Tomography*
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Methods*
;
Radiotherapy, Image-Guided
;
Range of Motion, Articular
;
Respiration
;
Retrospective Studies
;
Tumor Burden*
8.Prevalence of Stress Urinary Incontinence and Bladder Irritative Symptoms in Women: a Community Based Survey.
Myung Soo CHOO ; Tae Gyu CHUNG ; Jae Won LEE ; Hongsik KIM ; Sangwook CHUNG ; Jong Yeon PARK ; Taehan PARK
Korean Journal of Urology 1999;40(9):1200-1206
PURPOSE: The interest has been growing in the investigation and management of lower urinary tract symptoms, but their prevalence in the general population has so far been based on the estimates made in selected groups of women in Korea. The object of this study was to determine the prevalence of stress urinary incontinence and bladder irritative symptoms of women in rural region in Korea through a community based survey. Also, we investigated the relationship between age, parity, oral contraception, smoking, menopause and obesity and the prevalence of stress urinary incontinence. MATERIALS AND METHODS: A questionnaire survey was performed in a sample of randomly selected 1162 women aged 30 years and over, in 31 villages in the town of Jeong-Eup, Korea. From February 4th to February 22nd, 1997, trained field workers visited every home and interviewed every eligible individual with the questionnaires, which included data on stress urinary incontinence, bladder irritative symptoms, quality of life, reproductive and menstrual history, and use of oral contraceptives. Among 1162 women, 857 responded to questionnaires, and 827 questionnaires were available for analysis. The response rate was 73.5%. The prevalence of stress urinary incontinence was defined as the proportion of the women in the population surveyed who experienced stress urinary incontinence at least twice a week. We defined diurnal frequency as the episodes of voiding again within 2 hours after initial voiding in the series of 5 consecutive voidings during one month period. The urgency was defined as she found it difficult to hold urination, once or more in the series of 5 consecutive voidings and nocturia twice or more per night. RESULTS: The prevalence of stress urinary incontinence was 20.4%. Only seven(4.1%) women carried a sanitary towel or diaper as protection against urinary leakage. The prevalence of stress incontinence among age groups revealed no significant difference. Statistically significant correlation was noted between obesity and the prevalence of stress incontinence. Diurnal frequency was recorded by 375 women(45.3%); 171(20.6%) experienced this symptom more than three times. Urgency was reported by 268 women(32.4%) and 63(7.6%) were always troubled by this symptom. Nocturia 3 times or more every night was recorded by 341 women(42.2%) and 83(10.0%) had nocturia 5 times or more. The severity of nocturia increased significantly with age. CONCLUSIONS: The prevalence of stress urinary incontinence and irritative symptoms in this study is similar to previous studies performed in other countries while the rate of nocturia is much higher in this study. Although stress urinary incontinence and bladder irritative symptoms are relatively common in this community, only few people are seeking for care of these symptoms. Therefore, it is very important to educate the public and promote awareness of this medical problem in this community.
Contraception
;
Contraceptives, Oral
;
Female
;
Health Personnel
;
Humans
;
Jeollabuk-do
;
Korea
;
Lower Urinary Tract Symptoms
;
Menopause
;
Nocturia
;
Obesity
;
Parity
;
Prevalence*
;
Quality of Life
;
Surveys and Questionnaires
;
Smoke
;
Smoking
;
Urinary Bladder*
;
Urinary Incontinence*
;
Urination
9.Cervical plexus block.
Jin Soo KIM ; Justin Sangwook KO ; Seunguk BANG ; Hyungtae KIM ; Sook Young LEE
Korean Journal of Anesthesiology 2018;71(4):274-288
Cervical plexus blocks (CPBs) have been used in various head and neck surgeries to provide adequate anesthesia and/or analgesia; however, the block is performed in a narrow space in the region of the neck that contains many sensitive structures, multiple fascial layers, and complicated innervation. Since the intermediate CPB was introduced in addition to superficial and deep CPBs in 2004, there has been some confusion regarding the nomenclature and definition of CPBs, particularly the intermediate CPB. Additionally, as the role of ultrasound in the head and neck region has expanded, CPBs can be performed more safely and accurately under ultrasound guidance. In this review, the authors will describe the methods, including ultrasound-guided techniques, and clinical applications of conventional deep and superficial CPBs; in addition, the authors will discuss the controversial issues regarding intermediate CPBs, including nomenclature and associated potential adverse effects that may often be neglected, focusing on the anatomy of the cervical fascial layers and cervical plexus. Finally, the authors will attempt to refine the classification of CPB methods based on the target compartments, which can be easily identified under ultrasound guidance, with consideration of the effects of each method of CPB.
Airway Obstruction
;
Analgesia
;
Anesthesia
;
Cervical Plexus Block*
;
Cervical Plexus*
;
Classification
;
Head
;
Methods
;
Neck
;
Ultrasonography
10.Breast-Conserving Surgery after Neoadjuvant Chemotherapy Using a Three-Dimensional-Printed Surgical Guide Based on Supine Magnetic Resonance Imaging: A Case Report
Zhen-Yu WU ; Guk Bae KIM ; Seunghyun CHOI ; Sangwook LEE ; Namkug KIM ; BeomSeok KO
Journal of Breast Cancer 2021;24(2):235-240
Tumor localization in patients receiving neoadjuvant chemotherapy (NACT) is challenging because substantial therapeutic remission of the original tumor after NACT is often noted.Currently, there is no guidance device that allows for an accurate estimation of the resection range in breast-conserving surgery after NACT. To increase the accuracy of tumor resection, we used a 3-dimensional-printed breast surgical guide based on magnetic resonance imaging (MRI) in the supine position for a breast cancer patient who underwent breast-conserving surgery after NACT. Using this device, the breast tumor with apparent therapeutic changes after NACT on imaging was successfully removed with clear resection margins by identifying the original tumor site in the affected breast. Irrespective of whether the residual tumor area after NACT is well defined, it is possible to confirm and target the tumor area on pre-NACT MRI using this device.