1.Complete Remission from C1q Nephropathy with Disappearance of C1q Deposition after Steroid Therapy.
Hyaejin YUN ; Sung Min JEOUNG ; Hyun Soon LEE ; Byoung Soo CHO
Korean Journal of Medicine 2016;91(3):311-315
C1q nephropathy is a rare glomerular disease, defined by characteristic mesangial C1q immune deposition seen in immunofluorescence microscopy with no serological evidence of systemic lupus erythematosus. C1q nephropathy can be diagnosed with a subsequent biopsy, as with IgA nephropathy. There are some cases with an initial diagnosis of hematuria and proteinuria with minimal disease changes, focal segmental glomerulonephritis, and mesangial proliferative glomerulonephritis, but lacking C1q nephropathy, in which C1q deposition on immunofluorescence subsequently develops. We report a case that was diagnosed as diffuse mesangial proliferative glomerulonephritis, but a subsequent biopsy showed C1q nephropathy, with C1q deposition in both immunohistochemistry and electron microscopy (EM). We treated the C1q nephropathy with methylprednisolone and confirmed the disappearance of C1q depositions by both immunohistochemistry and EM in a follow-up biopsy.
Biopsy
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Complement C1q
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Diagnosis
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Fluorescent Antibody Technique
;
Follow-Up Studies
;
Glomerulonephritis
;
Glomerulonephritis, IGA
;
Hematuria
;
Immunohistochemistry
;
Lupus Erythematosus, Systemic
;
Methylprednisolone
;
Microscopy, Electron
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Microscopy, Fluorescence
;
Proteinuria
3.Life Expectancy of Patients Undergoing Total Knee Arthroplasty:Comparison With General Population
Sanghyo KIM ; Samuel Jaeyoon WON ; Na-Kyoung LEE ; Chong Bum CHANG
Journal of Korean Medical Science 2024;39(11):e106-
Background:
This study aimed to analyze the life expectancy and cause of death in osteoarthritis (OA) patients who underwent total knee arthroplasty (TKA) and to identify risk factors that affect long-term mortality rate after TKA.
Methods:
Among 601 patients, who underwent primary TKA due to OA by a single surgeon from July 2005 to December 2011, we identified patients who died after the operation using data obtained from the National Statistical Office of Korea. We calculated 5-, 10-, and 15-year survival rates of the patients and age-specific standardized mortality ratios (SMRs) compared to general population of South Korea according to the causes of death. We also identified risk factors for death.
Results:
The 5-year, 10-year, and 15-year survival rates were 94%, 84%, and 75%, respectively.The overall age-specific SMR of the TKA cohort was lower than that of the general population (0.69; P < 0.001). Cause-specific SMRs for circulatory diseases, neoplasms, and digestive diseases after TKA were significantly lower than those of the general population (0.65, 0.58, and 0.16, respectively; all P < 0.05). Male gender, older age, lower body mass index (BMI), anemia, and higher Charlson comorbidity index (CCI) were significant factors associated with higher mortality after TKA.
Conclusion
TKA is a worthwhile surgery that can improve life expectancy, especially from diseases of the circulatory system, neoplasms, and digestive system, in patients with OA compared to the general population. However, careful follow-up is needed for patients with male gender, older age, lower BMI, anemia, and higher CCI, as these factors may increase long-term mortality risk after TKA.
4.The Effect of Bilateral Eye Movements on Face Recognition in Patients with Schizophrenia.
Na Hyun LEE ; Ji Woong KIM ; Woo Young IM ; Sang Min LEE ; Sanghyun LIM ; Hyukchan KWON ; Min Young KIM ; Kiwoong KIM ; Seung Jun KIM
Korean Journal of Psychosomatic Medicine 2016;24(1):102-108
OBJECTIVES: The deficit of recognition memory has been found as one of the common neurocognitive impairments in patients with schizophrenia. In addition, they were reported to fail to enhance the memory about emotional stimuli. Previous studies have shown that bilateral eye movements enhance the memory retrieval. Therefore, this study was conducted in order to investigate the memory enhancement of bilaterally alternating eye movements in schizophrenic patients. METHODS: Twenty one patients with schizophrenia participated in this study. The participants learned faces (angry or neutral faces), and then performed a recognition memory task in relation to the faces after bilateral eye movements and central fixation. Recognition accuracy, response bias, and mean response time to hits were compared and analysed. Two-way repeated measure analysis of variance was performed for statistical analysis. RESULTS: There was a significant effect of bilateral eye movements condition in mean response time(F=5.812, p<0.05) and response bias(F=10.366, p<0.01). Statistically significant interaction effects were not observed between eye movement condition and face emotion type. CONCLUSIONS: Irrespective of the emotional difference of facial stimuli, recognition memory processing was more enhanced after bilateral eye movements in patients with schizophrenia. Further study will be needed to investigate the underlying neural mechanism of bilateral eye movements-induced memory enhancement in patients with schizophrenia.
Bias (Epidemiology)
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Eye Movements*
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Humans
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Memory
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Reaction Time
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Schizophrenia*
5.Antinociceptive Effect of Botulinum Toxin A in Persistent Muscle Pain Rat Model.
Jin Mok CHAE ; Min Kyun SOHN ; Mi Young LEE ; Ki Seok YOON ; Sheng Huo LEE ; Bong Ok KIM
Journal of the Korean Academy of Rehabilitation Medicine 2008;32(1):1-8
OBJECTIVE: To investigate the effects of botulinum toxin on the mechanical hyperalgesia, electrophysiology and motor functions in the persistent muscle pain rat model. METHOD: A secondary mechanical hyperalgesia in the bilateral hindpaws of Sprague-Dawley rats was produced by the repeated injections of acidic saline into gastrocnemius. Botulinum toxin A (BTX-A(4): 4 U/kg, BTX-A(7): 7 U/kg) was administrated into same muscle 24 hours after a second injection of saline. The mechanical hyperalgesia was measured with withdrawal threshold to von Frey filament. The grade of muscle paralysis was evaluated with electrophysiology and the locomotor performance using inclined plane board. RESULTS: The mechanical hyperalgesia was significantly decreased from 5 days to 2 weeks in BTX-A(7) group in the injected side. The dose-dependent decreased amplitude of compound muscle action potential and reduced prevalence of endplate noise from the first day of botulinum toxin injection lasted for 4 weeks in both gastrocnemius. The maximum angle maintained at initial position on the inclined plane board did not change. CONCLUSION: Local muscular injection of botulinum toxin A reduced ipsilateral hyperalgesia dose-dependently in persistent muscle pain rat model without motor deficit. The antinociceptive mechanism of botulinum toxin might act at a local or peripheral rather than a systemic or central effect due to ineffectiveness of contralateral hyperalgesia. Clinically, botulinum toxin A might be useful for the treatment of local and referred pain of muscle origins.
Action Potentials
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Animals
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Botulinum Toxins
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Electrophysiology
;
Hyperalgesia
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Muscles
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Noise
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Pain, Referred
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Paralysis
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Prevalence
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Rats
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Rats, Sprague-Dawley
6.Anesthetic management for the endoscopic sinus surgery of a patient with coexisting severe cervical spine ankylosing spondylitis and unruptured cerebral aneurysm: A case report.
Ju Young CHOI ; Ju Tae SOHN ; Hui Jin SUNG ; Il Woo SHIN ; Seong Ho OK ; Heon Keun LEE ; Young Kyun CHUNG
Korean Journal of Anesthesiology 2009;57(2):264-267
A 61-year-old man was admitted to the emergency room complaining of a severe left exophthalmos caused by frontal and ethmoid sinus mucoceles that were visualized on a brain computerized tomogram. In addition, he had coexisting ankylosing spondylitis with a 20 year duration that resulted in total fixation of the cervical spine and progressive thoracic kyphosis. An unruptured anterior communicating artery aneurysm was found incidentally on the cerebral angiogram. We report that the anesthetic management for endoscopic sinus surgery of a frontal sinus mucocele in a patient with coexisting severe cervical spine ankylosing spondylitis and an unruptured cerebral aneurysm requires a detailed preoperative assessment of the airway, cardiac, pulmonary, and neurologic system. This case highlights the need for careful measures to avoid rupturing the cerebral aneurysm by the increased blood pressure induced by endotracheal intubation and the infiltration of an epinephrine-containing local anesthetic.
Blood Pressure
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Brain
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Emergencies
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Ethmoid Sinus
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Exophthalmos
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Frontal Sinus
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Humans
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Intracranial Aneurysm
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Intubation, Intratracheal
;
Kyphosis
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Middle Aged
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Mucocele
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Spine
;
Spondylitis, Ankylosing
7.A Case of Mycobacterium Marinum Tenosynovitis Diagnosed by the PCR-restriction Fragment Length Polymorphism of the rpoB Gene.
Hojung CHUNG ; Mirae LEE ; Sun Youn BAE ; Mi Yeon KIM ; Doo Ryeon CHUNG
Korean Journal of Medicine 2012;82(3):378-381
Mycobacterium marinum is an uncommon cause of skin and soft-tissue infection. The diagnosis of M. marinum infection is often delayed when only a conventional tissue culture method is used. PCR-restriction fragment length polymorphism (RFLP) analysis using the novel region of the rpoB gene is now available for the rapid identification of Mycobacteria. We report a case of hand infection caused by M. marinum that was identified by PCR-RFLP analysis. The PCR-RFLP assay is a specific and rapid method for the identification of Mycobacteria that facilitates the early diagnosis of non-tuberculous Mycobacterium infection.
Early Diagnosis
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Hand
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Mycobacterium
;
Mycobacterium Infections
;
Mycobacterium marinum
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Skin
;
Tenosynovitis
8.A Case of Mycobacterium Marinum Tenosynovitis Diagnosed by the PCR-restriction Fragment Length Polymorphism of the rpoB Gene
Hojung CHUNG ; Mirae LEE ; Sun Youn BAE ; Mi Yeon KIM ; Doo Ryeon CHUNG
Korean Journal of Medicine 2012;82(3):378-381
Mycobacterium marinum is an uncommon cause of skin and soft-tissue infection. The diagnosis of M. marinum infection is often delayed when only a conventional tissue culture method is used. PCR-restriction fragment length polymorphism (RFLP) analysis using the novel region of the rpoB gene is now available for the rapid identification of Mycobacteria. We report a case of hand infection caused by M. marinum that was identified by PCR-RFLP analysis. The PCR-RFLP assay is a specific and rapid method for the identification of Mycobacteria that facilitates the early diagnosis of non-tuberculous Mycobacterium infection.
Early Diagnosis
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Hand
;
Mycobacterium
;
Mycobacterium Infections
;
Mycobacterium marinum
;
Skin
;
Tenosynovitis
9.Timing of Surgical Management of Papillary Thyroid Cancer Diagnosed during Pregnancy.
Yoonseok KIM ; Changhoon LEE ; Eunae JAE ; Youngjin LEE ; Jueun JUNG ; Susun KIM ; Mihyang KIM ; Eunsuk LEE ; Chunsuk PARK ; Jaemook PARK ; Hyunwoo JUNG ; Musil PARK ; Jaejun LEE ; Junmo AHN ; Soo LEE
International Journal of Thyroidology 2016;9(2):168-173
BACKGROUND AND OBJECTIVES: Although the thyroid cancer occurs in every one of 1000 pregnant women, the optimal timing of surgery is still uncertain. The aim of this study is to propose the timing of surgical management of papillary thyroid cancer in pregnant woman. MATERIALS AND METHODS: The authors reviewed the medical records of papillary thyroid cancer patients diagnosed during pregnancy in our hospital from May 1st, 2013 to April 30th, 2015. We analyzed the changes of radiologic and pathologic findings during prenatal and postpartum period. RESULTS: 17 of 4978 patients were diagnosed with papillary thyroid cancer. 10 of 17 patients enrolled in this study. Each size of thyroid cancer in 1st trimester, in 2nd trimester, in 3rd trimester, and after delivery was 11.30±6.01 mm, 12.74±7.79 mm, 13.82±9.93 mm, and 13.82±8.19 mm, respectively. No patient showed the recurrence or death after surgery. CONCLUSION: There was no statistical significance on the prognosis of papillary thyroid cancer during prenatal and postpartum period. The authors propose that the surgical treatment of papillary thyroid cancer diagnosed during pregnancy could be delayed after delivery.
Female
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Humans
;
Medical Records
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Postpartum Period
;
Pregnancy*
;
Pregnant Women
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Prognosis
;
Recurrence
;
Thyroid Gland*
;
Thyroid Neoplasms*
10.Timing of Surgical Management of Papillary Thyroid Cancer Diagnosed during Pregnancy.
Yoonseok KIM ; Changhoon LEE ; Eunae JAE ; Youngjin LEE ; Jueun JUNG ; Susun KIM ; Mihyang KIM ; Eunsuk LEE ; Chunsuk PARK ; Jaemook PARK ; Hyunwoo JUNG ; Musil PARK ; Jaejun LEE ; Junmo AHN ; Soo LEE
International Journal of Thyroidology 2016;9(2):168-173
BACKGROUND AND OBJECTIVES: Although the thyroid cancer occurs in every one of 1000 pregnant women, the optimal timing of surgery is still uncertain. The aim of this study is to propose the timing of surgical management of papillary thyroid cancer in pregnant woman. MATERIALS AND METHODS: The authors reviewed the medical records of papillary thyroid cancer patients diagnosed during pregnancy in our hospital from May 1st, 2013 to April 30th, 2015. We analyzed the changes of radiologic and pathologic findings during prenatal and postpartum period. RESULTS: 17 of 4978 patients were diagnosed with papillary thyroid cancer. 10 of 17 patients enrolled in this study. Each size of thyroid cancer in 1st trimester, in 2nd trimester, in 3rd trimester, and after delivery was 11.30±6.01 mm, 12.74±7.79 mm, 13.82±9.93 mm, and 13.82±8.19 mm, respectively. No patient showed the recurrence or death after surgery. CONCLUSION: There was no statistical significance on the prognosis of papillary thyroid cancer during prenatal and postpartum period. The authors propose that the surgical treatment of papillary thyroid cancer diagnosed during pregnancy could be delayed after delivery.
Female
;
Humans
;
Medical Records
;
Postpartum Period
;
Pregnancy*
;
Pregnant Women
;
Prognosis
;
Recurrence
;
Thyroid Gland*
;
Thyroid Neoplasms*