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Objectives@#. Malformations of the inner ear account for approximately 20% of cases of congenital deafness. In current practice, straight arrays with circumferential electrodes (i.e., full-banded electrodes) are widely used in severely malformed cochleae. However, the unpredictability of the location of residual spiral ganglion neurons in such malformations argues against obligatorily using full-banded electrodes in all cases. Here, we present our experience of electrically evoked compound action potential (ECAP) and radiography-based selection of an appropriate electrode for severely malformed cochleae. @*Methods@#. Three patients with severely malformed cochleae, showing cochlear hypoplasia type II (CH-II), incomplete partition type I (IP-I), and cochlear aplasia with a dilated vestibule (CADV), respectively, were included, and the cochlear nerve deficiency (CND) was evaluated. A full-banded electrode (CI24RE(ST)) and slim modiolar electrode (CI632) were alternately inserted to compare ECAP responses and electrode position. @*Results@#. In patient 1 (CH-II with CND), who had initially undergone cochlear implantation (CI) using a lateral wall electrode (CI422), revision CI was performed due to incomplete insertion of CI422 and resultant unsatisfactory performance by explanting the CI422 and re-inserting the CI24RE(ST) and CI632 sequentially. Although both electrodes elicited reliable ECAP responses with correct positioning, CI24RE(ST) showed overall lower ECAP thresholds compared to CI632; thus, CI24RE(ST) was selected. In patient 2 (IP-I with CND), CI632 elicited superior ECAP responses relative to CI24RE(ST), with correct positioning of the electrode; CI632 was chosen. In patient 3 (CADV), CI632 did not elicit an ECAP response, while meaningful ECAP responses were obtained with the CI24RE(ST) array once correct positioning was achieved. All patients’ auditory performance markedly improved postoperatively. @*Conclusion@#. The ECAP and radiography-based strategy to identify an appropriate electrode may be useful for severely malformed cochleae, leading to enhanced functional outcomes. The practice of sticking to full-banded straight electrodes may not always be optimal for IP-I and CH-II.
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Objectives@#. Malformations of the inner ear account for approximately 20% of cases of congenital deafness. In current practice, straight arrays with circumferential electrodes (i.e., full-banded electrodes) are widely used in severely malformed cochleae. However, the unpredictability of the location of residual spiral ganglion neurons in such malformations argues against obligatorily using full-banded electrodes in all cases. Here, we present our experience of electrically evoked compound action potential (ECAP) and radiography-based selection of an appropriate electrode for severely malformed cochleae. @*Methods@#. Three patients with severely malformed cochleae, showing cochlear hypoplasia type II (CH-II), incomplete partition type I (IP-I), and cochlear aplasia with a dilated vestibule (CADV), respectively, were included, and the cochlear nerve deficiency (CND) was evaluated. A full-banded electrode (CI24RE(ST)) and slim modiolar electrode (CI632) were alternately inserted to compare ECAP responses and electrode position. @*Results@#. In patient 1 (CH-II with CND), who had initially undergone cochlear implantation (CI) using a lateral wall electrode (CI422), revision CI was performed due to incomplete insertion of CI422 and resultant unsatisfactory performance by explanting the CI422 and re-inserting the CI24RE(ST) and CI632 sequentially. Although both electrodes elicited reliable ECAP responses with correct positioning, CI24RE(ST) showed overall lower ECAP thresholds compared to CI632; thus, CI24RE(ST) was selected. In patient 2 (IP-I with CND), CI632 elicited superior ECAP responses relative to CI24RE(ST), with correct positioning of the electrode; CI632 was chosen. In patient 3 (CADV), CI632 did not elicit an ECAP response, while meaningful ECAP responses were obtained with the CI24RE(ST) array once correct positioning was achieved. All patients’ auditory performance markedly improved postoperatively. @*Conclusion@#. The ECAP and radiography-based strategy to identify an appropriate electrode may be useful for severely malformed cochleae, leading to enhanced functional outcomes. The practice of sticking to full-banded straight electrodes may not always be optimal for IP-I and CH-II.
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Objectives@#. To investigate the neurocognition of aged patients with chronic tinnitus and reveal the possible association between tinnitus severity and cognitive function, with attention to mild cognitive impairment (MCI). @*Methods@#. Fifty-eight elderly patients (≥65 years old) with chronic tinnitus (≥6 months) were prospectively enrolled in this study. All patients assessed the neurocognitive batteries including the Korean version of the patient health questionnaire-9 (K-PHQ-9), the Lawton instrumental activities of daily living scale (K-IADL), and the Montreal cognitive assessment (MoCA-K). After initial evaluation to exclude moderate or severe cognitive impairment by a psychiatrist, the patients were classified into two groups: MCI and non-MCI, according to the MoCA-K scores (cutoff value, 22/23). All patients underwent audiological examinations including psychoacoustic tests of tinnitus. @*Results@#. Of 58 patients, 10 (17.2%) met the MCI criteria. The tinnitus handicap inventory (THI) score in the MCI group was significantly higher than that in the non-MCI group. Based on multivariate regression analysis, a significant association between tinnitus severity and MoCA-K score was also detected. Specifically, bothersome tinnitus (THI score ≥30) was closely linked to the presence of MCI. Meanwhile, the impact of MCI on both K-PHQ-9 and K-IADL scores was not evident in patients with chronic tinnitus. @*Conclusion@#. Tinnitus severity appears to be a potential independent determinant for predicting the MCI, suggesting the underlying mechanism between chronic tinnitus and cognitive deficit. Given that MCI highly links to dementia, the evaluation of cognitive functions in aged patients with chronic tinnitus need to be considered at the initial assessment of tinnitus.
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Objectives@#. We, herein, report two novel USH2A variants from two unrelated Korean families and their clinical phenotypes, with attention to severe or more than severe sensorineural hearing loss (SNHL). @*Methods@#. Two postlingually deafened subjects (SB237-461, M/46 and SB354-692, F/34) with more than severe SNHL and also with suspicion of Usher syndrome type II (USH2) were enrolled. A comprehensive audiological and ophthalmological assessments were evaluated. We conducted the whole exome sequencing and subsequent pathogenicity prediction analysis. @*Results@#. We identified the following variants of USH2A from the two probands manifesting more than severe SNHL and retinitis pigmentosa (RP): compound heterozygosity for a nonsense (c.8176C>T: p.R2723X) and a missense variant (c.1823G>A: p.C608Y) in SB237, and compound heterozygosity for two frameshift variants (c.14835delT: p.S4945fs & c.13112_13115delAAAT: p.G4371fs) in SB354. Based on the American College of Medical Genetics and Genomics/Association for Molecular Pathology guidelines, two novel variants, c.1823G>A: p.C608Y and c.14835delT: p.Ser4945fs, can be classified as “uncertain significance” and “pathogenic,” respectively. The audiogram exhibited more than severe SNHL and a down-sloping configuration, necessitating cochlear implantation. The ophthalmic examinations revealed typical features of RP. Interestingly, one proband (SB 354-692) carrying two truncating compound heterozygous variants exhibited more severe hearing loss than the other proband (SB 237-461), carrying one truncation with one missense variant. @*Conclusion@#. Our results provide insight on the expansion of audiological spectrum encompassing more than severe SNHL in Korean subjects harboring USH2A variants, suggesting that USH2A should also be included in the candidate gene of cochlear implantation. A specific combination of USH2A variants causing truncating proteins in both alleles could demonstrate more severe audiological phenotype than that of USH2A variants carrying one truncating mutation and one missense mutation, suggesting a possible genotype-phenotype correlation. The understanding of audiological complexity associated with USH2A will be helpful for genetic counseling and treatment starategy.
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Background and Objectives@#Bilateral microphones with contralateral routing of signal (BiCROS) hearing aid is an option for hearing rehabilitation in individuals with asymmetric sensorineural hearing loss (ASNHL). The clinical factors influencing the trial and purchase of BiCROS were investigated. @*Subjects and Methods@#We reviewed the medical records of 78 patients with ASNHL who were recommended to use BiCROS and analyzed the demographic and audiological factors influencing the trial and purchase of BiCROS. @*Results@#Among the 78 patients, 52 (66.7%) availed of the free BiCROS trial and 21 (26.9%) purchased BiCROS. The mean pure tone audiometry (PTA) air conduction (AC) threshold of the better- and worse-hearing ears were 44.2±12.8 dB and 90.7±22.5 dB HL, respectively. The decision for trial or purchase of BiCROS was not influenced by age, sex, duration of hearing loss of the worse-hearing ear, or PTA AC threshold or speech discrimination score of both ears. The first and third quartiles of the PTA AC thresholds for the better-hearing ear of BiCROS buyers were 38.75 dB and 53.75 dB HL, respectively. The counterpart values for the worse-hearing ear were 72.50 dB and 118.75 dB HL, respectively. @*Conclusions@#The clinical factors analyzed in this study were found to be irrelevant to the trial and purchase of BiCROS in patients with ASNHL. Nevertheless, the distribution range of the auditory thresholds of the subjects using BiCROS can be a useful basis for the counseling of patients with ASNHL and selection of candidates for BiCROS use.
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OBJECTIVES.: Sodium salicylate (SS) is well known for its ototoxic properties that induce functional and morphological changes in the cochlea and brain. Ginkgo biloba extract (GBE) has been widely used for treatment of various neurodegenerative diseases; however, its effects on salicylate-induced ototoxicity remain unclear. Herein, we examined the effects of EGb 761 (EGb), a standard form of GBE, on the plasticity of the N-methyl-D-aspartate receptor subunit 2B (GluN2B) in the inferior colliculus (IC) following SS administration. METHODS.: Seven-week-old Sprague Dawley rats (n=24) were randomly allocated to control, SS, EGb, and EGb+SS groups. The SS group received a single intraperitoneal SS injection (350 mg/kg), the EGb group received EGb orally for 5 consecutive days (40 mg/kg), and the EGb+SS group received EGb for 5 consecutive days, followed by an SS injection. The auditory brainstem responses (ABRs) were assessed at baseline and 2 hours after SS administration. GluN2B expression was examined by Western blot and immunohistochemistry. RESULTS.: There were no significant differences in ABR threshold shifts among the groups. The expression of the GluN2B protein normalized by which of glyceraldehyde 3-phosphate dehydrogenase (GAPDH) was significantly lower in the EGb+SS group, as compared to the SS group (P=0.012). Weak and diffused GluN2B immunoreactivity was detected in the IC neural cells of the EGb+SS group, while those of the SS group exhibited strong and diffused GluN2B positivity. CONCLUSION.: EGb may play a role in regulating the GluN2B expression in the IC of salicylate-induced ototoxicity model.
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Western Blotting , Encéfalo , Cóclea , Potenciales Evocados Auditivos del Tronco Encefálico , Ginkgo biloba , Gliceraldehído 3-Fosfato , Inmunohistoquímica , Colículos Inferiores , N-Metilaspartato , Enfermedades Neurodegenerativas , Oxidorreductasas , Plásticos , Ratas Sprague-Dawley , Salicilato de SodioRESUMEN
Although efficacies and proportions of tympanoplasty performed via endoscopic ear surgery (EES) have gradually introduced, it remains unclear whether total EES is a good alternative to microscopic ear surgery (MES). Herein, we aimed to compare therapeutic effects of EES and MES in patients receiving tympanoplasty or myringoplasty. A search of MEDLINE, PubMed, and Embase databases was conducted to compare the efficacies of EES and MES. Two investigators independently reviewed all studies and extracted data with a standardized form. We assessed risk of bias and calculated pooled odds ratio (OR) estimates with a 95% confidence interval (CI). Thirteen studies (607 EES patients and 678 MES patients) met inclusion criteria for quantitative meta-analysis. In pooled analysis, those who undergo EES have 0.99 times the OR of graft success compared to those with MES (95% CI, 0.84 to 1.16; P=0.894). In qualitative analysis, comparable hearing improvement was observed between the two groups, despite inconsistent audiometric evaluation. The air-bone gaps (ABGs) improved 2.02 dB less in EES than in MES (mean difference of improvements of ABGs, 2.02; 95% CI, –3.84 to –0.20; P=0.029); however, substantial heterogeneity and publication bias limited the integrity of this analysis. Further, EES significantly decreased canalplasty rate, wound complications, and operation time, compared to MES. Moreover, patients receiving EES reported higher cosmetic satisfaction than patients receiving MES. EES can be a good alternative to MES in terms of comparable graft success rate and hearing outcomes in patients receiving tympanoplasty or myringoplasty. Moreover, EES was less invasive, resulting in higher cosmetic satisfaction, reduced morbidity, and shorter operation time. Our results may affect decision-making and outcome prediction in cases of EES; however, confirmation is needed to clarify potential bias.
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Humanos , Sesgo , Oído , Endoscopios , Audición , Miringoplastia , Oportunidad Relativa , Características de la Población , Sesgo de Publicación , Investigadores , Usos Terapéuticos , Trasplantes , Timpanoplastia , Heridas y LesionesRESUMEN
We compared the therapeutic efficacy of facial nerve decompression (FND) and conservative treatment in patients with Bell's palsy through a systematic review and meta-analysis. Primary database search was performed in PubMed, Medline, and Embase. After screening, 13 studies were assessed for their eligibility. Among them, seven studies employing either the House-Brackmann grading system (HBGS) or May's classification (modified HBGS) were selected for quantitative and qualitative analysis. Based on May's classification, the degree of recovery was classified into complete (HBGS I), fair (HBGS II–III), or failed (HBGS IV–VI) recovery. The outcomes were assessed between 6 and 12 months after surgery. The estimated pooled odds ratio (OR) and 95% confidence interval (CI) were calculated using random effects model. Cohorts were comprised of patients who underwent FND (n=202, 53.0%) and conservative treatments (n=179, 47.0%). In pooled analysis, the rate of complete recovery was significantly higher in the FND group than in the control group (OR, 2.06; 95% CI, 1.22 to 3.48; P=0.007) showing neither heterogeneity nor publication bias. Meanwhile, the rates of fair recovery (OR, 0.71; 95% CI, 0.42 to 1.21; P=0.208) and failed recovery (OR, 0.60; 95% CI, 0.22 to 1.67; P=0.327) in the FND group were similar to that in the control group. In subgroup analyses, there was no significant difference in the OR according to the operation timing and surgical approach. FND can be a possible treatment option for patients with complete Bell's palsy, especially for complete recovery, which provide insights on decision-making and outcome prediction. However, FND should be determined carefully given the risk of small study effects and possible complications.
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Humanos , Parálisis de Bell , Clasificación , Estudios de Cohortes , Descompresión , Nervio Facial , Tamizaje Masivo , Oportunidad Relativa , Características de la Población , Sesgo de PublicaciónRESUMEN
With the increase in life expectancy, age is no longer considered as a limitation for treatment. Nevertheless, the treatment of elderly patients with head and neck cancer (HNC) remains controversial. Here, we aimed to review our experience with the treatment for elderly patients, while particularly focusing on the differences among older old patients (septuagenarians vs. octogenarians). We retrospectively reviewed the records of 260 elderly patients who were assigned to 3 groups according to age: 70 years old ≤ group 1 < 75 years old, 75 years old ≤ group 2 < 80 years old, and group 3 ≥ 80 years old. The patients were assessed for comorbidities using the Adult Comorbidity Evaluation (ACE)-27, and the American Society of Anesthesia (ASA) physical status was also compared. Group 1, 2, and 3, consisted of 97, 102, and 61 patients, respectively. No significant difference in demographic data was noted among the groups. However, group 3 showed more comorbidities than groups 1 and 2. With regard to the initial treatment for HNC, radiation therapy (RT) was more frequently performed in group 3 than in groups 1 and 2. Among 7 patients of non-compliant to treatment in group 3, 6 patients had have performed RT. In group 3, a total of 18 patients underwent surgery, including microvascular free flap reconstruction and no significant difference in complications was observed postoperatively compared with group 1 and 2. Moreover, no significant difference was noted in overall survival between the groups, regardless of the treatment modality chosen. In conclusion, octogenarians with HNC should be more carefully managed than septuagenarians with HNC. Surgical treatment can be considered in octogenarians with HNC, if it can be tolerated.
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Anciano , Anciano de 80 o más Años , Humanos , Factores de Edad , Comorbilidad , Neoplasias de Cabeza y Cuello/mortalidad , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del TratamientoRESUMEN
With the increase in life expectancy, age is no longer considered as a limitation for treatment. Nevertheless, the treatment of elderly patients with head and neck cancer (HNC) remains controversial. Here, we aimed to review our experience with the treatment for elderly patients, while particularly focusing on the differences among older old patients (septuagenarians vs. octogenarians). We retrospectively reviewed the records of 260 elderly patients who were assigned to 3 groups according to age: 70 years old ≤ group 1 < 75 years old, 75 years old ≤ group 2 < 80 years old, and group 3 ≥ 80 years old. The patients were assessed for comorbidities using the Adult Comorbidity Evaluation (ACE)-27, and the American Society of Anesthesia (ASA) physical status was also compared. Group 1, 2, and 3, consisted of 97, 102, and 61 patients, respectively. No significant difference in demographic data was noted among the groups. However, group 3 showed more comorbidities than groups 1 and 2. With regard to the initial treatment for HNC, radiation therapy (RT) was more frequently performed in group 3 than in groups 1 and 2. Among 7 patients of non-compliant to treatment in group 3, 6 patients had have performed RT. In group 3, a total of 18 patients underwent surgery, including microvascular free flap reconstruction and no significant difference in complications was observed postoperatively compared with group 1 and 2. Moreover, no significant difference was noted in overall survival between the groups, regardless of the treatment modality chosen. In conclusion, octogenarians with HNC should be more carefully managed than septuagenarians with HNC. Surgical treatment can be considered in octogenarians with HNC, if it can be tolerated.
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Anciano , Anciano de 80 o más Años , Humanos , Factores de Edad , Comorbilidad , Neoplasias de Cabeza y Cuello/mortalidad , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del TratamientoRESUMEN
Herpetic laryngitis is extremely rare in healthy adults. The local factors that increase susceptibility to herpes simplex virus include irradiation on the head and neck area. A 66-year-old man who had history of supraglottic cancer had voice change 4 years after the radiotherapy. On laryngscopic examination, the erosive mucosal lesion was found on his left vocal fold. A pathologic examination of the lesion by suspension laryngoscopy revealed that the lesion was herpetic laryngitis, which was confirmed by immunohistochemical stain as herpes simplex virus. Herpetic laryngitis should be in the index of differential diagnosis in patients with laryngitis who have the history of irradiation on the neck.
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Adulto , Anciano , Humanos , Diagnóstico Diferencial , Cabeza , Laringitis , Laringoscopía , Cuello , Radioterapia , Simplexvirus , Pliegues Vocales , VozRESUMEN
Multiple symmetric lipomatosis (Madelung's disease) is an infrequent disease of unknown etiology. The typical characteristic of the disease is bulging, symmetric masses of fat tissue on the neck, upper extremities, and upper parts of the trunk. The disease strongly affects middle-aged men, people from Mediterranean regions and with alcohol abuse history. We report three cases of middle to old age males with long-standing multi-lobulated bulging of the neck, which gradually enlarged over many years. Of peculiar interest is one patient who presented with snoring and apnea together with typical findings of Madelung's disease. The case had involvement of the hypopharynx, which was successfully managed with microscopic laryngeal surgery with CO2 laser. The authors elucidate three cases of Madelung's disease found in the pharynx and neck, and report a review of the literature.
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Humanos , Masculino , Alcoholismo , Apnea , Hipofaringe , Láseres de Gas , Lipomatosis Simétrica Múltiple , Región Mediterránea , Cuello , Faringe , Ronquido , Extremidad SuperiorRESUMEN
Foreign body (FB) airway obstruction is a life-threatening clinical situation. The FB's are removed by bronchoscopy in the majority of patients, but in highly-selected cases, tracheotomy is occasionally indicated in foreign body extraction, when they are subglottic in location and impacted, or large enough to get obstructed at the glottic chink during endoscopic removal. Authors report one case of tracheal FB which required tracheotomy for the FB removal after the failure of FB removal with rigid bronchoscopy.
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Humanos , Obstrucción de las Vías Aéreas , Broncoscopía , Cuerpos Extraños , TraqueotomíaRESUMEN
Therapeutic paracentesis is considered to be a relatively safe procedure and is performed commonly for the control of massive ascites in patients with liver cirrhosis. The commonest puncture site, approximately 4 or 5 cm medial of left anterior superior iliac spine, can be located across the route of the inferior epigastric artery, which is one of the sites of potential massive bleeding. In a 46-year-old woman with liver cirrhosis and refractory ascites, a huge abdominal wall hematoma developed after therapeutic paracentesis. The patient was not stabilized by conservative treatment, and inferior epigastric artery injury was confirmed on angiography. Angiographic coil embolization of the inferior epigastric artery was conducted, after which the bleeding ceased and the hematoma stopped growing. This case indicates that physicians performing paracentesis should be aware of the possibility of inferior epigastric artery injury and consider early angiographic coil embolization when a life-threatening abdominal wall hematoma develops.
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Femenino , Humanos , Persona de Mediana Edad , Pared Abdominal , Angiografía , Ascitis/cirugía , Embolización Terapéutica , Arterias Epigástricas/lesiones , Hematoma/etiología , Cirrosis Hepática/diagnóstico , Paracentesis/efectos adversos , Tomografía Computarizada por Rayos X , Heridas no Penetrantes/complicacionesRESUMEN
OBJECTIVES: This study was designed to examine the effect of marital satisfaction and dysfunctional attitudes on depression in married women. METHODS: Forty depressed married female patients and 34 non-depressed married women as normal control group completed three self-report questionnaires, Beck Depression Inventory(BDI) Dysfunctional Attitude Scale(DAS) and Dyadic Adjustment Scale(DYAS) Marital satisfaction and dysfunctional attitudes were compared by student t-test between the two groups. Also, relative importances of each variables to depression were examined with stepwise multiple regression analysis. RESULTS: Depressed patients reported significantly lower level of marital satisfaction and showed higher level of dysfunctional attitudes than normal controls. Dyadic satisfaction, approval need, and perfectionism subfactors were more important in predicting depressive symptomatology than other variables in patients. CONCLUSION: We conclude that marital satisfaction has significant influence on development and maintenance of depression in married women, and in underlying thinking process, dysfunctional attitudes serve as a cognitive vulnerability factor. This conclusion involves the expectation that if dysfunctional attitudes of depressed married women could be changed positively, their marital satisfaction will be increased to higher level and depression will be decreased. Overall, our findings stress that we need to consider the degrees of marital satisfaction and dysfunctional attitudes of depressed maried women, when treating them, in order to individualize treatments and optimize our ability to predict responsiveness to therapy.
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Femenino , Humanos , Depresión , Encuestas y Cuestionarios , PensamientoRESUMEN
Cadmium(Cd) is an ubiquitous, toxic and non-essential metal which is controversial about the association with a cardiovascular disease. In this study, we investigated the reference level of Cd in myocardium in Korean general population. The level of Cd and zinc(Zn) concentration in myocardium of 252 cases of "sudden and unexpected death" autopsies(male 172, female 60) aged 0 to 87 years was analyzed. The concentration of Cd and Zn was determined with atomic absorption spectrophotometer(Perkin-Elmer Model 5100) by flameless and flame method, respectively. The content of Cd and Zn in myocardium showed the log-normal distribution rather than normal distribution. Geometric mean concentration of Cd was 0.19 microgram/g wet weight in myocardium. The level of Cd in myocardium was not significantly different between male(0. 18 microgram/g wet weight) and female(0.22 microgram/g wet weight). Geometric mean concentration of Zn in myocardium was 25.25 microgram/g wet weight. The level of Zn between male(25.13 microgram/g wet weight) and female(25.57 microgram/g wet weight) was not different. The deposit of Cd in myocardium was age-dependent of biphasic pattern, but the Zn level by age was not significantly different. The level of Cd in myocardium was increased to the fifties of age, thereafter a leveling-off was shown. The regression model of Cd deposit in myocardium by age was predicted as the following equation Log Heart-Cd = -1.2726 + 0.0234 Age - 0.0002 Age2. The maximum Cd deposit in myocardium was estimated to be 0.26 microgram/g wet weight at the age of 58.5 in Korean general population. In addition, the total Cd burden in heart by age was predicted as a following equation Total Cd burden in Heart = -10.165 + 2.891 Age - 0.0258 Age2. The maximum heart burden of Cd was estimated to be 70.7 microgram at age of 55.4. The positive correlation between Cd and Zn was observed in myocardium. The linear regression equation was Log Heart-Zn = 1.4195 +/- 0.0262- Log Heart-Cd.
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Femenino , Humanos , Absorción , Cadmio , Enfermedades Cardiovasculares , Corazón , Modelos Lineales , Miocardio , Valores de Referencia , ZincRESUMEN
OBJECTIVES: Schizophrenic patients have been reported to be associated with abnormal performance on a broad range of neuropsychological tests. But it has been a persistent controversy in the neuropsychology of schizophrenia whether this disorder is characterized by generalized deficits or specific deficits. The purpose of this study was to investigate, using standardized Benton Neuropsychological Assessment(BNA), whether the specific pattern of neurocognitive deficits is found in schizophrenics. METHODS: The subjects were composed of (1) 30 schizophrenic inpatients who were diagnosed as paranoid subtype according to DSM-IV diagnostic criterior and (2) 30 normal subjects with matching demographic variables(i.e. age, sex, educational level). All tests of BNA were given to schizophrenic patients and normal subjects, and the performances of schizophrenic patients and normal subjects were compared on all aspects of BNA. Schizophrenic symptoms were assessed via Positive and Negative Syndrome Scale(PANSS) to determine the relationship between clinical symptoms and schizophrenic cognitive deficits. RESULTS: Of 12 tests of BNA, schizophrenic patients' performances on Serial Digit Learning(SDL), Facial Recognition Test(FR), Tactile Form Perception(TFP), Finger Localization(FL) were significantly lower than those of normal subjects. In addition, schizophrenic patients showed significantly lower performances than those of normal subjects on Right Hand, Left Hand, Identification of two simultaneously touched fingers of FL, and more Peripheral Error on Visual Form Perception Test(VFPT). Finally, no significant correlation was found with respect to the relationships between total scores, positive symptom scores, negative symptom scores of PANSS, and all scores of BNA tests in schizophrenic patients. CONCLUSION: These results suggest that schizophrenic patients may have a specific pattern of neurocognitive deficits in verbal working memory, learning, attention, and complex sensory information processing in visual and haptic modality such as facial perception skills, tactile information processing, independent of psychotic symptoms. The pattern of deifcits is at least in partial, in agreement with many previous study results. On the tests of linguistic functions, visuospatial perception, and constructional abilities, schizophrenic patients' performances were not significantly different from those of normal subjects. The findings on visuospatial perception and constructional abilities imply that some posterior cortical zones may be relatively uncompromised in schizophrenia. Both poor performances on object recognition tests relative to normal performances on object location tests and verbal working memory dysfunction may be associated with the putative dysfunction of the reciprocal connections either (1) between the prefrontal and parietal cortex or (2) between the prefrontal cortex and hippocampal formation. This tentative explanation remains to be confirmed.
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Humanos , Procesamiento Automatizado de Datos , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Dedos , Percepción de Forma , Mano , Hipocampo , Pacientes Internos , Aprendizaje , Lingüística , Memoria a Corto Plazo , Pruebas Neuropsicológicas , Neuropsicología , Corteza Prefrontal , Rabeprazol , EsquizofreniaRESUMEN
The authors report two cases of clozapine-induced acute hepatitis. Two patients developed asymptomatic hepatitis and got better with conservative care. We decreased the dosage of clozapine and added hepatic protectors, resulting in normalized laboratory findings. The authors also reviewed side effects of clozapine in this report. We reviewed the suggested mechanism of either clozapine or chlorpromazine-induced hepatitis. Clozapine influences the liver cell via cytochrome P 450 and chlorpromazine does so via mild cholestasis. There may be a possibility that a patient who has experienced drug-induced hepatitis is vulnerable to clozapine-induced acute hepatitis. In this respect, those who have experienced drug-induced hepatitis must be observed more closely.
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Humanos , Clorpromazina , Colestasis , Clozapina , Sistema Enzimático del Citocromo P-450 , Enfermedad Hepática Inducida por Sustancias y Drogas , Hepatitis , HígadoRESUMEN
This study examined, among others, the relationship between the use of anticonvulsant and the bone mineral metabolism(measured via DR-XRA and biochemical study) in 46 adult epileptic outpatients who had been on anticonvulsant for more than one year at Seoul Red Cross Hospital. The study finding wet as follows. 1) There was statistically significant difference between index group(i.e. 46 adult epileptic outpatients) and control group(i.e. 46 healthy adults without previous exposure to anticonvulsant) in terms of bone mineral density. Specifically, the bone mineral density in the epileptic outpatients was significantly lower than that in the healthy adult. Although there was no statistically significant difference between male and female outpatients, their bone mineral density tended to decrease with the increase of age. 2) The bone mineral density in the epileptic outpatients was negatively correlated to both I) the age when the outpatients stared anticonvulsant treatment and ii) the period for which the outpatients were on anticonvulsant 3) Index group was further classified into three subgroup(i.e. low, normal and high subgroup) based on the mean and standard deviation of the bone mineral density in healthy adults control group. 24 outpatients(52.5%) out of 46 fell into low subgroup, of which 10 were male. Overall, there was no statistically significant difference between male and female outpatients in terms of their bone mineral density. 4) Low subgroup's average age(38.6 with SD of 12.5) was significantly higher than those of the other two subgroup. Low subgroup stained anticonvulsant treated when their average age was 24.8(SD 15.0) years, which was higher than those of the other two subgroups. Low subgroup was on anticonvulsant, on average, far 13.3(SD 7.6) years, which was also higher than those of the other two subgroups although there was no significant difference among the subgroups. 5) A series of comparison regarding the possible impact of various types of anticonvulsan(e.g. PHT, CBZ, FB, SV) in terms of i) overall dosage and ii) daily average dosage on bone mineral density showed no significant difference across the three subgroups. 6) There was no significant difference in terms of bone mineral density between the epileptic outpatients on only one type of anticonvulsant and those on two or more types of anticonvulsant. 7) A biochemical study showed that i) each subgroup fell into normal range in terms of blood serum Ca, F, and ALF with no significant difference among the subgroups, and ii) in low subgroup, there were 6 outpatients(25%) with Ca decrease, 2(9.5%) with P decrease, and 5(20.8%) with ALF increase.