1.Mid-Septal Hypertrophy and Apical Ballooning; Potential Mechanism of Ventricular Tachycardia Storm in Patients with Hypertrophic Cardiomyopathy.
Yonsei Medical Journal 2012;53(1):221-223
Medically refractory ventricular tachycardia (VT) storm can be controlled with radiofrequency catheter ablation (RFCA), however, it may be difficult to control in some patients with hemodynamic overload. We experienced a patient with intractable VT storm controlled by hemodynamic unloading. The patient had mid-septal hypertrophic cardiomyopathy with an implantable cardioverter defibrillator (ICD) back-up. Because of the severe mid-septal hypertrophy, his left ventricle (LV) had an hourglass-like morphology and showed apical ballooning; the focus of VT was at the border of apical ballooning. Although we performed VT ablation because of electrical storm with multiple ICD shocks, VT recurred 1 hour after procedure. As the post-RFCA monomorphic VT was refractory to anti-tachycardia pacing or ICD shock, we reduced the hemodynamic overload of LV with beta-blockade, hydration, and sedation. VT spontaneously stopped 1.5 hours later and the patient has remained free of VT for 24 months with beta-blockade alone. In patients with VT storm refractory to antiarrhythmic drugs or RFCA, the mechanism of mechano-electrical feedback should be considered and hemodynamic unloading may be an essential component of treatment.
Cardiomyopathy, Hypertrophic/complications/diagnosis/*physiopathology/therapy
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Catheter Ablation
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Electrocardiography
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Gated Blood-Pool Imaging
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Heart Catheterization
;
Humans
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Male
;
Middle Aged
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Tachycardia, Ventricular/diagnosis/etiology/*physiopathology/therapy
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Takotsubo Cardiomyopathy/complications/diagnosis/*physiopathology/therapy
2.A Case of Cerebral Infarction Caused by Tumor Emboli from the Site of.
Eui Chang HWANG ; Sen LYU ; In Ho KIM ; Hyun Jong PARK ; Nam Young KANG ; Myung Yong LEE
Korean Circulation Journal 1999;29(7):731-
Multiple cerebral infarction developed in a 36-year-old woman with adenocarcinoma of the right lung with direct cardiac invasion. Neurological examination and brain MRI showed findings of ordinary infarction. Transesophageal echocardiography showed left atrial pedunculated mass which was the potential source of embolism. We report a rare case who had such multiple spontaneous tumor emboli large enough to result in clinically detectable cerebral infarction.
Adenocarcinoma
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Adult
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Brain
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Cerebral Infarction*
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Echocardiography, Transesophageal
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Embolism
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Female
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Humans
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Infarction
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Lung
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Lung Neoplasms
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Magnetic Resonance Imaging
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Neoplastic Cells, Circulating
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Neurologic Examination
3.Comparison of Approaches for the Removal of Metallic Intraocular Foreign Bodies.
Jeong Ho HWANG ; Eui Yong KWEON ; Nam Chun CHO
Journal of the Korean Ophthalmological Society 2010;51(2):270-275
PURPOSE: To review the management of posterior segment metallic intraocular foreign bodies (IOFB) and to compare the use of an external approach using a large electromagnet and an internal approach using vitrectomy and its tools for their removal. METHODS: A retrospective review was performed on 49 eyes of 49 patients who underwent surgical removal of metallic IOFBs with either an internal or an external approach at a single institution between January 2003 and December 2006. We divided 49 eyes into two groups based on the type of approach: 26 external (n=26) and 23 internal (n=23). Visual acuity and the presence of any complications occurring with the two approaches were the main outcome measures studied. RESULTS: Thirty of 49 eyes (61%) showed improvements in visual acuity. When we compared patients treated with an external versus an internal approach, we found no statistically significant difference in regard to visual outcome. Preoperative vitreous hemorrhage and endophthalmitis were more common in the internal approach group. A trend toward a higher rate of reoperation was more common in the external approach group, but they were not statistically significant. Postoperative complications found to be significantly different between the two groups were the rate of postoperative endophthalmitis and retinal detachment, which were more common in the external approach group. CONCLUSIONS: Surgical removal of metallic IOFBs results in significant visual improvement regardless of the approach method. The internal approach by vitrectomy is recommended as the first choice in preoperative conditions such as severe cataracts, vitreous hemorrhage and endophthalmitis, as well as in groups at high risk for postoperative endophalmitis and retinal detachment.
Cataract
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Endophthalmitis
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Eye
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Foreign Bodies
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Humans
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Magnets
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Outcome Assessment (Health Care)
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Postoperative Complications
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Reoperation
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Retinal Detachment
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Retrospective Studies
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Visual Acuity
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Vitrectomy
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Vitreous Hemorrhage
4.The Usefulness of Diagnostic Scan Using Technetium-99m Pertechnetate Scintigraphy prior to the First Ablative Radioiodine Treatment in Patients with Well Differentiated Thyroid Carcinoma: A Comparative Study with Iodine-131.
Seok Nam YOON ; Chan H PARK ; Kyung Hoon HWANG ; Su Zy KIM ; Eui Young SOH ; Kyung Rae KIM
Korean Journal of Nuclear Medicine 2000;34(4):285-293
PURPOSE: A prospective comparison was made between imaging with Tc-99m pertechnetate (Tc-99m) and Ioine-131 (I-131) for the detection of residual and metastatic tissue after total thyroidectomy in patients with well-differentiated thyroid carcinoma. MATERALS AND METHODS: Initially our patients had imaging with Tc-99m, followed by I-131 within 3 days. The study included 21 patients who had ablation with high dose of I-131 ranging from 100 mCi to 150 mCi. Planar and pinhole images were acquired for both Tc-99m and I-131. Diagnostic images of Tc-99m and I-131 were compared with post-therapy images. Degree of uptake on Tc-99m and I-131 images was scored by four point scale and compared. RESULTS: The results of the Tc-99m study were: 16 of 19 studies (84%) were positive on simple planar images, but 19 of 20 studies (95%) were positive on pinhole images. Conventional I-131 diagnostic imaging on the other hand showed that all studies (100%) were positive on both planar and pinhole images. There was a significant difference in degree of uptake between Tc-99m and I-131 planar images (p<0.05). Only one case of Tc-99m scintigraphy was negative on both planar and pinhole studies (false negative). There was no distant metastasis on the therapeutic I-131 images. CONCLUSION: Tc-99m scan using pinhole in certain clinical situations is an alternative to the I-131 scan in detecting thyroid or lymph node metastasis prior to the first ablative treatment after thyroidectomy for well-differentiated thyroid carcinoma.
Diagnostic Imaging
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Hand
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Humans
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Lymph Nodes
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Neoplasm Metastasis
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Prospective Studies
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Radionuclide Imaging*
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Sodium Pertechnetate Tc 99m*
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Thyroid Gland*
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Thyroid Neoplasms*
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Thyroidectomy
5.Malignant Schwannoma on the Right Chest Wall: 1 Case Report.
Eui Doo HWANG ; Kyung Hwan HWANG ; Myung Hoon NA ; Jae Hyun YU ; Young LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 1997;30(10):1051-1053
Malignant schwannoma is rare tumor which is derived from schwan cells or nerve sheath cells, and it is frequently associated with Von Rechlinghausen's disease. We experienced one case of malignant schwannoma on the right chest wall without Von Rechlinghausen's disease. Patient was 64-year-old man who presented painless palpable mass on the right lower chest wall for about 2 months. On chest computed tomography, the mass which was 6 X 6 cm in size and had central necrosis, involved 11th rib with destruction, invaded the diaphragm and displaced the kidney anteriorlly. He underwent en-bloc resection of the tumor and discharged without any problem after 20 days.
Diaphragm
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Humans
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Kidney
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Middle Aged
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Necrosis
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Neurilemmoma*
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Ribs
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Thoracic Wall*
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Thorax*
6.A comparative study of odontogenic and non-odontogenic deep neck infections.
Eui Gee HWANG ; Sea Yuong JEON ; Soon Kwan HONG ; Young Woon MA ; Nam Joo KIM ; Hyung Jin KIM ; Il Hyun KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(3):403-409
No abstract available.
Neck*
7.Intravenous Anti-D immunoglobulin treatment of adult chronic immune thrombocytopenic purpura (ITP).
Hye Jeong KIM ; Yunjin JUNG ; Eui Nam HWANG ; Young Hoon KIM ; Jin Sung CHOI ; Seung Hyun NAM ; Bong Seog KIM ; Do Yeon OH ; Sung Soo YOON ; Sun Yang PARK
Korean Journal of Medicine 2008;74(2):176-180
BACKGROUND/AIMS: Immune thrombocytopenic purpura (ITP) is an autoimmune disease that is mediated by anti-platelet antibodies. Based on the pathogenesis of ITP we evaluated the efficacy of intravenous anti-D immunoglobulin for adult chronic ITP. METHODS: Fourteen patients (4 without splenectomy and 10 with splenectomy) with refractory chronic ITP were treated with 50-70 microgram/kg of intravenous anti-D immunoglobulin only once. Treatment effects were evaluated by measuring the platelet counts and hemoglobin levels. RESULTS: Five patients (36%) showed a response; improvement in the platelet count lasted for on average 7 days (range: 2~24 days). There were no serious adverse effects. CONCLUSION: Anti-D immunoglobulin, which is associated with an Fc receptor blockade, appeared to be safe and effective for the treatment of adults with chronic ITP. Further studies are needed to confirm these findings and define further potentially effective treatment protocols with intravenous anti-D immunoglobulin.
Adult
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Antibodies
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Autoimmune Diseases
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Clinical Protocols
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Hemoglobins
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Humans
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Immunoglobulins
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Isoantibodies
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Platelet Count
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Purpura, Thrombocytopenic, Idiopathic
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Receptors, Fc
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Rho(D) Immune Globulin
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Splenectomy
8.Identifying Genetic Susceptibility to Sensitization to Cephalosporins in Health Care Workers.
Young Hee NAM ; Jeong Eun KIM ; Seung Hyun KIM ; Hyun Jung JIN ; Eui Kyung HWANG ; Yoo Seob SHIN ; Young Min YE ; Hae Sim PARK
Journal of Korean Medical Science 2012;27(11):1292-1299
Exposure to cephalosporins could cause occupational allergic diseases in health care workers (HCWs). We evaluated the prevalence of serum specific IgE and IgG antibodies to cephalosporin-human serum albumin (HSA) conjugate and to identify potential genetic risk factors associated with sensitization to cephalosporins in exposed HCWs. The study population consisted of 153 HCWs who had been exposed to antibiotics in a single university hospital and 86 unexposed healthy controls. A questionnaire survey of work-related symptoms (WRS) was administered. A skin-prick test (SPT) was performed, and serum-specific IgE and IgG antibodies to 3 commonly prescribed cephalosporins were measured by ELISA. Four single-nucleotide polymorphisms of the candidate genes related to IgE sensitization were genotyped. The prevalence of WRS to cephalosporins was 2.6%. The prevalence rates of serum-specific IgE and IgG antibodies to cephalosporins were 20.3% and 14.7%, respectively. The FcepsilonR1beta-109T > C polymorphism was significantly associated with IgE sensitization to cephalosporins in HCWs (P = 0.036, OR = 3.553; CI, 1.324-9.532). The in vitro functional assay demonstrated that the T allele of FcepsilonR1beta-109T had greater promoter activity than did the C allele (P < 0.001). The FcepsilonR1beta-109T > C polymorphism may be a potential genetic risk factor for increased IgE sensitization to cephalosporins.
Adult
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Alleles
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Anti-Bacterial Agents/analysis/*immunology
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Cephalosporins/analysis/*immunology
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Enzyme-Linked Immunosorbent Assay
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Female
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Genetic Predisposition to Disease
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Health Personnel
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Humans
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Hypersensitivity/*diagnosis/epidemiology
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Immunoglobulin E/blood
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Immunoglobulin G/blood
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Male
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Occupational Diseases/*chemically induced/epidemiology
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Occupational Exposure
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Odds Ratio
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Questionnaires
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Receptors, IgE/genetics
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Skin Tests
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Young Adult
9.Occupational Rhinitis Induced by Capsaicin.
Young Hee NAM ; Hyun Jung JIN ; Eui Kyung HWANG ; Yoo Seob SHIN ; Young Min YE ; Hae Sim PARK
Allergy, Asthma & Immunology Research 2012;4(2):104-106
Capsaicin is the spice component of red pepper. It can be easily inhaled, inducing a reproducible cough and provokes a secretory response from the human nasal mucosa. To date, there has been no report of occupational rhinitis (OR) caused by capsaicin. We report the case of a 44-year-old female mill worker who developed occupational rhinitis after 4 years of exposure to capsaicin. She developed nasal congestion, rhinorrhea, and itchy nose, which were all aggravated upon exposure at the workplace. The patient had negative responses to all common inhalant allergens, including capsaicin, by skin prick tests. The nasal provocation test with capsaicin showed that the nasal symptom score and eosinophil count increased 10 minutes after the provocation and decreased after 1 to 3 hours; no significant response was noted to house dust mite allergen. The patient's work-related rhinitis improved 1 month after she relocated and started pharmacological treatment. To our knowledge, this is the first case of OR caused by capsaicin exposure in the workplace. We provide evidence suggesting that OR may be mediated by a non-immunological mechanism.
Adult
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Allergens
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Capsaicin
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Capsicum
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Cough
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Eosinophils
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Estrogens, Conjugated (USP)
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Female
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Humans
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Nasal Mucosa
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Nasal Provocation Tests
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Nose
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Pyroglyphidae
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Rhinitis
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Skin
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Spices
10.Correction of Recurrent Ingrowing Toenail Using Partial Matricectomy and Paronychial Advancement Flap.
Eui Sik KIM ; Sung Nam KIM ; Bok Kyun NOH ; Jae Ha HWANG ; Kwang Seog KIM ; Sam Yong LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(3):347-352
Ingrowing toenail has been treated conventionally by various surgical treatment modlities. However, none of these procedures are perfect to achieve esthetic results with low cost, recurrence, and complication rates. Although mild cases can be treated conservatively, in severe recurrent cases, surgical treatment is preferred. The purpose of this study is to evaluate the effectiveness and safety of using partial matricectomy and paronychial advancement flap for correction of recurrent ingrowing toenail. Eight patients suffering from recurrent ingrowing toenail were operated using partial matricectomy and paronychial advancement flap in our department from August 2004 to August 2005. The number of recurrent episodes ranged from 2 to 5. With digital nerve block, the excision area was marked on nailplate and inflammed lateral nail fold. The horizontally designed paronychial flap considering defect size was effective for wide exposure of the neighboring germinal matrix, which is later to be completely excised or cauterized because remnant germinal matrix made postoperative spicule formation. The nailplate on the affected side was removed about 3-5mm width longitudinally, being cautious not to damage the proximal dorsal nail fold. The same width of the sterile matrix including germinal matrix was excised longitudinally with inflammed granulation tissue and partial lateral nail fold on the affected side. The subcutaneously elevated paronychial flap was advanced to cover the defect and was anatomically sutured with 5-0 nylon sutures. We evaluated our procedure's effectiveness by examining some factors such as cosmetic results, recurrence, spicule formation, postoperative pain and duration of return to normal activities. In eight patients, no complication was observed such as recurrence, severe pain and spicule formation except for 1 case of infection. Postoperative discomfort was minimal. Average duration of return to normal activities was 12 days. Cosmetically the results were acceptable in all patients. The partial matricectomy and paronychial advancement flap for correction of recurrent ingrowing toenail were found to be technically simple, efficient procedure with a relative low recurrence rate and better cosmetic results.
Granulation Tissue
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Humans
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Nails*
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Nerve Block
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Nylons
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Pain, Postoperative
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Recurrence
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Sutures