1.Profound hypothermia and circulatory arrest foraneurysm surgery.
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(5):511-517
No abstract available.
Hypothermia*
2.Clinical application of deep hypothermia and total circulatory arrest for treatment of aortic disease
Journal of the Korean Society for Vascular Surgery 1992;8(1):180-186
No abstract available.
Aortic Diseases
;
Hypothermia
3.Surgical excision of intracardiac myxoma: a 15-year experience.
Hyun SONG ; Wan Ki BAEK ; Hyuk AHN ; Hurn CHAE ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(2):176-182
No abstract available.
Myxoma*
4.Limb Salvage Surgery with Tumor Prosthesis for the Malignant Bone Tumors Involving the Proximal Femur.
Young Soo CHUN ; Jong Hun BAEK ; Seung Hyuk LEE ; Chung Hwan LEE ; Chung Soo HAN
The Journal of the Korean Bone and Joint Tumor Society 2014;20(1):7-13
PURPOSE: As well as patient survival, the restoration of postoperative function such as ambulation is important in limb salvage operations for treatment of malignant bone tumors involving the proximal femur. The authors analyzed clinical outcomes of limb salvage operations using tumor prostheses for metastatic or primary malignant bone tumors in the proximal femur. MATERIALS AND METHODS: From February 2005 to January 2014, 20 cases (19 patients) with malignant bone tumor involving the proximal femur with pain or complicated pathologic fracture were treated with segmental resection and limb salvage operations with tumor prostheses. Mean age was 63.1 years (range 35-86). Fourteen patients were male and six ones were female. The mean follow-up period was 20 months (1-94 months). There were 15 cases of metastatic bone tumor, 4 cases of osteosarcoma, and 1 case of multiple myeloma. The primary tumors of the metastatic bone tumors included 4 lung cancers, 3 hepatocellular carcinomas, and 3 renal cell carcinomas. Other primary tumors were breast cancer, thyroid cancer, colon cancer, prostate cancer, and malignant spindle cell tumor, each in 1 case. Modular tumor prostheses were used in all cases; (Kotz's(R) Modular Tumor prosthesis (Howmedica, Rutherford, New Jersey) in 3 cases, MUTARS(R) proximal femur system (Implantcast, Munster, Germany) in 17 cases). Perioperative pain was assessed with Visual Analogue Scales (VAS). Postoperative functional outcome was assessed with Musculoskeletal Tumor Society (MSTS) grading system. RESULTS: Out of 20 cases (19 patients), 11 cases (10 patients) survived at the last follow-up. Average postoperative survival of the 9 deceased patients was 10.1 months (1-38 months). VAS score improved from pre-operative average of 8.40 (5-10) to 1.35 (0-3) after operation. Average postoperative MSTS function score was 19.65 (65.50%, 7-28). The associated complications were 2 local recurrences, 3 hematomas, 3 infections, 2 scrotal swellings, and 1 dislocation. There was no case of periprosthetic fracture or loosening. CONCLUSION: Limb salvage operation with tumor prosthesis is an appropriate treatment for early pain reduction and functional restoration in malignant bone tumors in the proximal femur with pain an/or complicated pathologic fractures.
Breast Neoplasms
;
Carcinoma, Hepatocellular
;
Carcinoma, Renal Cell
;
Colonic Neoplasms
;
Dislocations
;
Female
;
Femur*
;
Follow-Up Studies
;
Fractures, Spontaneous
;
Hematoma
;
Humans
;
Limb Salvage*
;
Lung Neoplasms
;
Male
;
Multiple Myeloma
;
Osteosarcoma
;
Periprosthetic Fractures
;
Prostatic Neoplasms
;
Prostheses and Implants*
;
Recurrence
;
Thyroid Neoplasms
;
Walking
;
Weights and Measures
5.Diffusion Measure Changes of Substantia Nigra Subregions and the Ventral Tegmental Area in Newly Diagnosed Parkinson’s Disease
Jae-Hyuk SHIM ; Hyeon-Man BAEK
Experimental Neurobiology 2021;30(5):365-373
Historically, studies have extensively examined the basal ganglia in Parkinson’s disease for specific characteristics that can be observed with medical imaging. One particular methodology used for detecting changes that occur in Parkinson’s disease brains is diffusion tensor imaging, which yields diffusion indices such as fractional anisotropy and radial diffusivity that have been shown to correlate with axonal damage. In this study, we compare the diffusion measures of basal ganglia structures (with substantia nigra divided into subregions, pars compacta, and pars reticula), as well as the diffusion measures of the diffusion tracts that pass through each pair of basal ganglia structures to see if significant differences in diffusion measures can be observed in structures or tracts in newly diagnosed Parkinson’s disease patients. Additionally, we include the ventral tegmental area, a structure connected to various basal ganglia structures affected by dopaminergic neuronal loss and have historically shown significant alterations in Parkinson’s disease, in our analysis. We found significant fractional anisotropy differences in the putamen, and in the diffusion tracts that pass through pairs of both substantia nigra subregions, subthalamic nucleus, parabrachial pigmental nucleus, ventral tegmental area. Additionally, we found significant radial diffusivity differences in diffusion tracts that pass through the parabrachial nucleus, putamen, both substantia nigra subregions, and globus pallidus externa. We were able to find significant diffusion measure differences in structures and diffusion tracts, potentially due to compensatory mechanisms in response to dopaminergic neuronal loss that occurs in newly diagnosed Parkinson’s disease patients.
6.Intraoperative Near Infrared Fluorescence Imaging in Robotic Low Anterior Resection: Three Case Reports.
Sung Uk BAE ; Se Jin BAEK ; Hyuk HUR ; Seung Hyuk BAIK ; Nam Kyu KIM ; Byung Soh MIN
Yonsei Medical Journal 2013;54(4):1066-1069
The recent introduction of an intraoperative near infrared fluorescence (INIF) imaging system installed on the da Vinci Si(R) robotic system has enabled surgeons to identify intravascular NIF signals in real time. This technology is useful in identifying hidden vessels and assessing blood supply to bowel segments. In this study, we report 3 cases of patients with rectal cancer who underwent robotic low anterior resection (LAR) with INIF imaging for the first time in Asia. In September 2012, robotic-assisted rectal resection with INIF imaging was performed on three consecutive rectal cancer patients. LAR was performed in 2 cases, and abdominoperineal resection was performed in the third case. INIF imaging was used to identify the left colic branch of the inferior mesenteric artery and to assess blood supply to the distal rectum. We evaluated the utility of INIF imaging in performing robotic-assisted colorectal procedures. Our preliminary results suggest that this technique is safe and effective, and that INIF imaging may be a useful tool to colorectal surgeons.
Aged
;
Digestive System Surgical Procedures/*methods
;
Female
;
Fluorescence
;
Humans
;
Image Processing, Computer-Assisted/instrumentation/*methods
;
*Intraoperative Care
;
Male
;
Middle Aged
;
Rectal Neoplasms/*surgery
;
Rectum/*surgery
;
Robotics/*methods
;
Spectroscopy, Near-Infrared/*methods
;
Treatment Outcome
7.A case of myelofibrosis with juvenile xanthogranuloma.
Jong Chan KIM ; Hae Yong LEE ; Hwang Min KIM ; Baek Keun LIM ; Jong Soo KIM ; Young Hyuk LEE
Journal of the Korean Pediatric Society 1991;34(6):869-876
No abstract available.
Primary Myelofibrosis*
;
Xanthogranuloma, Juvenile*
8.Clinical study on renal replacement therapy for acute renal failure following cardiopulmonary bypass.
Kyung Phill SUH ; Joon Ryang RHO ; Hurn CHAE ; Yong Jin KIM ; Hyuk AHN ; Jeong Ryul LEE ; Wan Ki BAEK
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(3):232-239
No abstract available.
Acute Kidney Injury*
;
Cardiopulmonary Bypass*
;
Renal Replacement Therapy*
9.The Natural History of Pediatric Trigger Thumb: A Study with a Minimum of Five Years Follow-up.
Clinics in Orthopedic Surgery 2011;3(2):157-159
BACKGROUND: Pediatric trigger thumb is due to deformed flexion of the interphalangeal joint. We previously reported that pediatric trigger thumb can spontaneously resolve in > 60% of patients at the median follow-up of 48 months. The purpose of this study was to determine whether there were any more cases of resolution with a follow-up of more than 5 years and whether any residual deformities remain, and so to confirm the natural history of pediatric trigger thumb. METHODS: We prospectively followed 87 thumbs in 67 patients with pediatric trigger thumb and these patients didn't receive any treatment such as passive stretching, splinting or surgery. The date of the first visit ranged from April 1994 to March 2005. The patients were evaluated every six-months prior to resolution and annually after resolution. The median duration of follow-up was 87.3 months (range, 60 to 156 months). RESULTS: Of the 87 trigger thumbs, 66 (75.9%) resolved spontaneously. The median time from the initial visit to resolution was 49.0 months (95% confidence interval, 41.1 to 56.9). There were no residual deformities that resolved beyond 48 months. Although complete resolution did not occur in the remaining 21 thumbs, the flexion deformities did improve in all 21 thumbs. There were no other differences between the two groups besides the average duration of follow-up. There was no difference in resolution based on gender. CONCLUSIONS: Pediatric trigger thumb can spontaneously resolve in > 75% of the cases after a follow-up period of at least 5 years. An operation may be delayed or avoided in the majority of cases. This may help both the families and the surgeons make decisions regarding the proper treatment of pediatric trigger thumb.
Adolescent
;
Child
;
Child, Preschool
;
Female
;
Follow-Up Studies
;
Humans
;
Infant
;
Kaplan-Meier Estimate
;
Male
;
*Remission, Spontaneous
;
Statistics, Nonparametric
;
Time Factors
;
Trigger Finger Disorder/*physiopathology
10.Dysgenesis of Corpus Callosum' CT and MR Findings.
Hae Young SEOL ; Nam Joon LEE ; Kyoo Byung CHUNG ; Jung Hyuk KIM ; Baek Hyun KIM ; Min Jin LEE
Journal of the Korean Radiological Society 1994;31(1):19-23
PURPOSE: To evaluate the specif!c radiologic findings of the dysgenesis of corpus callosum(CCD) on CT and/or MR images. MATERIALS AND METHODS: The authors reviewed retrospectively CT and/or MR images of 10 patients with CCD. After classifying CCD into partial and total type according to the degree of its development, we investigated structural abnormalities on CT and/or MR images resulting from or related to CCD and then associated anomaly. RESULTS: The most common findings of CCD on axial planes of CT and/or MR images were dilatation of posterior part of the lateral ventricles(8/10) and feature of the bodies of the both lateral ventricles(8/10) in parallel. Sagittal and coronal planes of MR demonstrated exact extent of dysgenesis of the corpus callosum(5/5) and radiating pattern of gyri in medial surface of cerebral hemisphere extending to the 3rd ventricle without interruption by cingulate sulcus(4/5). CONCLUSION:MR image of mid-sagittal plane appeared most useful in diagnosis of CCD because of its direct depiction of the whole length of corpus callosum. In most cases, however, CCD can be easily diagnosed with CT scan by characteristic findings of dilatation of the posterior part of lateral ventricles and paralleling of the lateral ventricles.
Cerebrum
;
Corpus Callosum
;
Diagnosis
;
Dilatation
;
Humans
;
Lateral Ventricles
;
Retrospective Studies
;
Tomography, X-Ray Computed