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1.
Am J Otolaryngol ; 42(4): 102962, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33610924

RESUMO

Pseudoaneurysms are very rare with an incidence of less than 0.1% in the pediatric population. Approximately 30 cases of carotid artery aneurysms in children have been published in the literature, usually affecting children over one year of age. We present one of the youngest cases in the literature; the patient is an 8-month old female with a strep throat infection complicated by pseudoaneurysm development of the external carotid artery. Because of the rarity of these lesions, there is little known regarding the types of clinical presentation and management. They are commonly the result of direct arterial trauma; however, they can also occur secondary to infection, connective tissue disease or arteritis. We are presenting a case with a highly atypical presentation. When present, pseudoaneurysms harbor the potential risk of life-threatening hemorrhage and warrant immediate management. It is important to be aware of cases and the treatment modalities used to guide future diagnosis and planning.


Assuntos
Lesões das Artérias Carótidas/etiologia , Artéria Carótida Externa , Infecções Respiratórias/complicações , Abscesso Retrofaríngeo/etiologia , Infecções Estafilocócicas/complicações , Fatores Etários , Antibacterianos/administração & dosagem , Lesões das Artérias Carótidas/diagnóstico , Lesões das Artérias Carótidas/terapia , Diagnóstico Diferencial , Drenagem , Feminino , Humanos , Lactente , Infecções Respiratórias/diagnóstico , Infecções Respiratórias/terapia , Abscesso Retrofaríngeo/diagnóstico , Abscesso Retrofaríngeo/terapia , Infecções Estafilocócicas/diagnóstico , Infecções Estafilocócicas/terapia , Tomografia Computadorizada por Raios X , Resultado do Tratamento
2.
Am J Otolaryngol ; 42(6): 103139, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34174671

RESUMO

The cellular blue nevus tumor is a type of dendritic melanocytic nevus that is typically benign and exceedingly rare. The incidence of all blue nevi is about 1%, usually affecting the adult population and appearing on the extremities, sacrococcygeal or gluteal regions. There have only been a handful of case reports cited in the literature where cellular blue nevi present in the head and neck region, usually affecting the scalp and young adult population (7, 8). As such, it is exceedingly rare to encounter a cellular blue nevus tumor in the neck or infiltrating into neck lymph nodes. Here we report a rare case of a cellular blue nevus tumor presenting as a right neck mass in a pediatric 16-year-old patient, shown to invade into the submandibular lymph node and surrounding soft tissue. It is important to be aware of the cellular blue nevus tumor as a differential diagnosis in pediatric neck masses. Histological evaluation is necessary to determine tumor aggression and malignant potential which can guide further treatment in pediatric patients.


Assuntos
Linfonodos/patologia , Mandíbula , Nevo Azul/patologia , Neoplasias Cutâneas/patologia , Adolescente , Biomarcadores Tumorais/análise , Diagnóstico Diferencial , Feminino , Humanos , Linfonodos/cirurgia , Antígeno MART-1/análise , Nevo Azul/diagnóstico , Nevo Azul/cirurgia , Fatores de Transcrição SOXE/análise , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/cirurgia , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Antígeno gp100 de Melanoma/análise
3.
Niger J Clin Pract ; 21(10): 1284-1290, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30297560

RESUMO

OBJECTIVE: The objective of this study is to compare the effectiveness of final irrigation with chitosan, ethylenediaminetetraacetic acid (EDTA), and citric acid (CA) on a resin-based sealer (AH plus sealer [Dentsply DeTrey, Konstanz, Germany]) penetration into dentinal tubules using confocal laser scanning microscopy. MATERIALS AND METHODS: Seventy recently extracted human mandibular premolars were instrumented and irrigated with sodium hypochlorite (NaOCl), then divided into four groups according to the final irrigation regimen used: (1) the EDTA group: 17% EDTA + 2.5% NaOCl, (2) the CA group: 10% CA + 2.5% NaOCl, (3) the chitosan group: 0.2% chitosan + 2.5% NaOCl, and (4) the control group: 2.5% NaOCl. All teeth were obturated using the cold lateral condensation technique with gutta-percha and AH Plus sealer labeled with fluorescent dye. The apical 2 mm of specimen was discarded, and slices were obtained for apical, middle, and coronal thirds of the root with 1 mm intervals. Maximum, mean, and percentage of sealer penetration (SP) inside tubules were measured using confocal laser scanning microscopy. RESULTS: The percentage of SP was significantly higher in chitosan, EDTA, and CA group than control group for coronal thirds (P < 0.05), whereas there was no significant difference among all groups for middle and apical thirds. Chitosan and EDTA showed increased mean values of SP depth for middle thirds (P < 0.05). In all sections, the maximum depth of SP was significantly lower in EDTA group than other groups (P < 0.05). CONCLUSIONS: Chitosan, EDTA, and CA significantly improved the percentage of SP for coronal thirds.


Assuntos
Quitosana/farmacologia , Ácido Cítrico/farmacologia , Permeabilidade da Dentina/efeitos dos fármacos , Dentina/diagnóstico por imagem , Ácido Edético/farmacologia , Microscopia Confocal , Irrigantes do Canal Radicular/farmacologia , Dente Pré-Molar , Dentina/metabolismo , Resinas Epóxi , Humanos , Materiais Restauradores do Canal Radicular , Preparo de Canal Radicular/métodos , Hipoclorito de Sódio/farmacologia
4.
Am J Otolaryngol ; 37(1): 41-3, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26700259

RESUMO

BACKGROUND: Lymphangioma of the head and neck is considered a rare congenital tumor with the vast majority presenting before two years of age. Surgical excision and sclerosing therapy using OK-432 are recognized as effective treatment options for the majority of these lesions; however, treatment options of laryngeal lesions are less straightforward due to the risk of airway compromise and the desire to maintain the integrity of a functional larynx. We present the case of a four month old male who presented with chief complaint of inspiratory stridor after a single episode of pneumonia. His clinical presentation, flexible fiberoptic laryngoscopic examination, and operative evaluation were consistent with a lymphangioma completely encasing the epiglottis and arytenoids and isolated to the supraglottis. This report outlines our approach to workup and treatment of this rare lesion. METHOD: Case report of presentation, diagnosis and treatment is presented. RESULTS: A four-month old male presented to ENT clinic with inspiratory stridor, worsened with crying, without frank respiratory distress. History and initial examination was consistent with airway obstruction. Flexible fiberoptic laryngoscopy showed laryngomalacia as well as diffuse and symmetric supraglottic edema. Surgical evaluation identified edema limited to the supraglottis, notably along the ventral surface of the epiglottis and dorsal surface of bilateral arytenoids. Biopsies were taken and immunohistochemical staining was performed with strong positivity for D2-40 and CD31, supporting the diagnosis of isolated lymphangioma of the supraglottis. Treatment was performed through multiple point spot welding with a fiber equipped CO2 LASER (OmniGuide TM) at 5 watt continuous power. CONCLUSION: Isolated supraglottic lymphangioma was diagnosed via direct laryngoscopy, with pathologic and immunohistochemical confirmation. Carbon dioxide laser spot welding technique was used with excellent clinical improvement in stridor. Clinical improvement is sustained after 6 months follow-up.


Assuntos
Neoplasias Laríngeas/diagnóstico , Linfangioma/diagnóstico , Obstrução das Vias Respiratórias/etiologia , Humanos , Lactente , Neoplasias Laríngeas/congênito , Neoplasias Laríngeas/cirurgia , Laringoscopia , Terapia a Laser , Linfangioma/congênito , Linfangioma/cirurgia , Masculino , Sons Respiratórios/etiologia
5.
J Obstet Gynaecol ; 36(2): 183-6, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26366512

RESUMO

Pregnancy-induced hypertension (PIHT) increases both maternal and neonatal mortality and morbidity in pregnant women. We sought to investigate the electrocardiographic findings in pregnant women with PIHT. Seventeen pregnant women (29.4 ± 5 years) with PIHT and 24 pregnant women (27.3 ± 6.1 years) with normal blood pressure (control group) were included in the study. A 12-lead surface electrocardiogram was used to evaluate the electrocardiographic parameters. Pregnant women with PIHT had higher blood pressure (p = 0.001). The Tp-e interval was longer in PIHT pregnant women at 83.5 ± 7.8 ms versus 75.8 ± 8.4 ms in the control group (p = 0.007). The Tp-e/QTc ratio was higher in pregnant women with PIHT than that in healthy controls (0.19 ± 0.02 vs. 0.18 ± 0.02, respectively). This study demonstrated that Pd, QTd and the P wave durations were similar in the PIHT pregnant women and control group, but the Tp-e and Tp-e/QTc ratio were higher in pregnant women with PIHT than in normotensive pregnant women.


Assuntos
Coração/fisiopatologia , Hipertensão Induzida pela Gravidez/fisiopatologia , Adulto , Pressão Sanguínea , Estudos de Casos e Controles , Eletrocardiografia , Feminino , Humanos , Gravidez , Adulto Jovem
6.
Clin Exp Obstet Gynecol ; 42(1): 32-5, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25864278

RESUMO

OBJECTIVE: To evaluate the effect of maternal polycystic ovary (PCO) morphology on maternal serum free beta-human chorionic gonadotropin (ß-hCG), pregnancy associated plasma protein A (PAPP-A), and nuchal translucency (NT) thickness in the first-trimester. MATERIAL AND METHODS: A total of 92 pregnant women in the first-trimester were included in the study. Of them, 57 had PCO morphology, and 35 women constituted the control group, with apparently normal ovaries. Maternal serum free ß-hCG, PAPP-A, and NT thickness were measured and compared in all patients. RESULTS: The multiples of median (MoM) levels of serum free ß-hCG were significantly higher in the PCO morphology group compared to the normal ovary group (p = 0.024). However, the MoM levels of PAPP-A were similar in both groups (p = 0.947). No difference was found between the groups in terms of fasting glucose levels and NT measurements (p = 0.976 and 0.565, respectively). CONCLUSION: In pregnancies with maternal PCO morphology, the presence of higher maternal serum free ß-hCG levels may require correction in the calculation of risks related to first-trimester screening for chromosomal abnormalities. Larger studies are needed to confirm our preliminary data.


Assuntos
Gonadotropina Coriônica Humana Subunidade beta/sangue , Síndrome do Ovário Policístico , Complicações na Gravidez , Proteína Plasmática A Associada à Gravidez/análise , Adulto , Aneuploidia , Biomarcadores/sangue , Feminino , Humanos , Medição da Translucência Nucal/métodos , Síndrome do Ovário Policístico/diagnóstico por imagem , Síndrome do Ovário Policístico/metabolismo , Gravidez , Complicações na Gravidez/diagnóstico por imagem , Complicações na Gravidez/metabolismo , Primeiro Trimestre da Gravidez/sangue , Diagnóstico Pré-Natal
7.
Bratisl Lek Listy ; 116(5): 330-3, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25924644

RESUMO

OBJECTIVE: The influence of prostatic acid phosphatase (PAP) and human chorionic gonadotropin (HCG), tumor markers have been investigated on human erythrocyte carbonic anhydrase (HCA-I and HCA-II) and bovine erythrocyte (BCA) and bovine lung carbonic anhydrase (CA-IV) in vitro. BACKGROUND: Tumor markers are substances that can often be detected in higher-than-normal amounts in the blood, urine, or body tissues of some patients with certain types of cancer. Tumor markers are produced either by the tumor itself or by the body in response to the presence of cancer or certain benign (noncancerous) conditions. In addition to their role in cancer diagnosis, some tumor marker levels are measured before treatment to help doctors plan appropriate therapy. RESULTS AND CONCLUSION: All of the tumor markers were determined to have inhibition effect, on human CA-I, CA-II, bovine erythrocyte CA (BCA) and bovine lung CA-IV isoenzymes. The effect of each tumor marker on CA was investigated by Wilbur-Andersen method modified by Rickly et al Inhibition effects of two different tumor markers on human CA-I, CA-II, bovine erythrocyte CA (BCA) and bovine lung CA-IV isoenzymes were determined by using the CO2-Hydratase method by plotting activity % vs (tumor markers). I50 values of tumor markers exhibiting inhibition effects were found by means of these graphs (Tab.1, Fig. 2, Ref. 20).


Assuntos
Fosfatase Ácida/farmacologia , Biomarcadores Tumorais/farmacologia , Anidrase Carbônica II/efeitos dos fármacos , Anidrase Carbônica IV/efeitos dos fármacos , Anidrase Carbônica I/efeitos dos fármacos , Inibidores da Anidrase Carbônica/farmacologia , Gonadotropina Coriônica/farmacologia , Animais , Anidrase Carbônica I/antagonistas & inibidores , Anidrase Carbônica II/antagonistas & inibidores , Anidrase Carbônica IV/antagonistas & inibidores , Anidrases Carbônicas/efeitos dos fármacos , Bovinos , Ensaios Enzimáticos , Eritrócitos/enzimologia , Humanos , Técnicas In Vitro , Pulmão/enzimologia
8.
Niger J Clin Pract ; 18(5): 616-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26096239

RESUMO

OBJECTIVE: The aim of this study was to evaluate the applicability of the Demirjian method for southern Turkish population. MATERIALS AND METHODS: Panoramic radiographs of 535 patients (276 females, 259 males aged from 10 to 18 years) selected retrospectively. Dental age was calculated using the Demirjian's method. Chronologic age was calculated by subtracting the date of the birth from the date of the panoramic radiograph after having converted both to a decimal age. The chronologic and dental ages were compared using the paired t-test. RESULTS: The mean difference between the chronologic and dental ages ranged from 0.02 to 0.79 years in females. These differences in females between the chronologic and dental ages were statistically significant in total (P < 0.050) and in G1 (10-10.90 years) (P < 0.010) and G2 (11-11.90 years) (P < 0.001). The mean difference between the chronologic and dental ages ranged from 0.04 to 0.85 years in males. These differences in males between the chronologic age and dental age were statistically significant in total (P < 0.010) and in G4 (13-13.90 years) G5 (14-14.90 years) G6 (15-15.90 years) groups (P < 0.050). CONCLUSIONS: It is appropriate to use the Demirjian method in southern Turkish children; however, a revision is needed in some age groups.


Assuntos
Determinação da Idade pelos Dentes/métodos , Radiografia Panorâmica , Adolescente , Criança , Dentição Permanente , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Estudos Retrospectivos , Turquia
9.
Eur J Gynaecol Oncol ; 35(5): 554-6, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25423703

RESUMO

AIM: The aim of the study was to explore the knowledge and the awareness of the young Turkish women regarding cervical cancer and human papilloma virus (HPV) vaccines. The authors analyze a probable relationship between the overall knowledge level and a few socio-demographic parameters. MATERIALS AND METHODS: The authors interviewed with students from Canakkale 18 March University and young women that did not continue with school in the same city from January to September 2011. All the students answered the questionnaire voluntarily and independently. RESULTS: The participants had low level of knowledge about the risk factors for cervical cancer. Smoking is the major risk factor that was known by the participants (65%). Proportion of the participants that were aware of pap smear test and HPV were 65% and 17% respectively. A small proportion of young women had knowledge regarding protection from HPV. Educational stream, educational level, family income, and family size had significant association knowledge level (p < 0.05). CONCLUSION: There has not been any improvement in HPV and risk factor of cervical cancer awareness in young women. Health members of the National Cancer Control Programme and delegates of the vaccine corporations have major work in order to increase the level of knowledge so that general public can easily take preventative measures.


Assuntos
Vacinas contra Papillomavirus/imunologia , Neoplasias do Colo do Útero/prevenção & controle , Vacinação , Adulto , Estado de Consciência , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Inquéritos e Questionários , Neoplasias do Colo do Útero/etiologia , Adulto Jovem
10.
J Obstet Gynaecol ; 34(1): 48-53, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24359050

RESUMO

The aim of the present study was to investigate whether the addition of a paracervical block to local intrauterine anaesthesia or the use of an intramuscular non-steroidal anti-inflammatory drug was effective for pain control during and at 30 min after hysterosalpingography (HSG). A total of 120 patients undergoing hysterosalpingography were randomised into four groups. Patients received intramuscular dexketoprofen trometamol with or without a paracervical block or intracavitary lidocaine instillation with or without paracervical block. The primary outcome was the overall pain score from the four stages of the procedure. The lowest pain scores were observed in the patients receiving dexketoprofen trometamol with a paracervical block, whereas the highest pain scores were observed in patients with intracavitary lidocaine instillation without a paracervical block (p = 0.021). No beneficial effect was found when a paracervical block (PCB) was added to either systemic or local analgesics. The combination of intramuscular dexketoprofen and a paracervical block with plain lidocaine produced the best pain relief during the three specified steps and at up to 30 min after the HSG procedure.


Assuntos
Anestesia Obstétrica , Histerossalpingografia/efeitos adversos , Dor/prevenção & controle , Adolescente , Adulto , Anestesia Local , Anestésicos Locais/administração & dosagem , Método Duplo-Cego , Feminino , Humanos , Injeções Intramusculares , Cetoprofeno/administração & dosagem , Cetoprofeno/análogos & derivados , Lidocaína/administração & dosagem , Dor/etiologia , Estudos Prospectivos , Trometamina/administração & dosagem , Adulto Jovem
11.
J Obstet Gynaecol ; 34(8): 666-8, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24911521

RESUMO

We examined the perinatal outcomes of borderline diabetic pregnant women who had impaired 50 g oral glucose challenge test (OGCT) results, but normal 100 g oral glucose tolerance test (OGTT) results. Our study group included 70 pregnant women who had increased 50 g OGCT results, but normal 100 g OGTT results, and a control group of 122 pregnant women with normal 50 g OGCT results. Polyhydramnios, macrosomia and neonatal birth weight were significantly higher in the study group. After adjusting the results for possibly affecting variables, the risk of polyhydramnios remained significant, while the risk of macrosomia and neonatal birth weight was not significant between the groups. The results from the study group were similar to the control group, when adjusted for other risk factors. Increased 50 g OGCT results in pregnant women can be accepted as a benign state if the 100 g OGTT results are normal.


Assuntos
Diabetes Gestacional/epidemiologia , Estado Pré-Diabético/epidemiologia , Resultado da Gravidez , Adulto , Feminino , Humanos , Recém-Nascido , Masculino , Gravidez , Estudos Prospectivos , Adulto Jovem
12.
Clin Exp Obstet Gynecol ; 41(6): 617-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25551950

RESUMO

PURPOSE: Behcet disease (BD) is a multisystemic vaculitis commonly diagnosed in reproductive years. The authors aimed to investigate the relationship between BD and pregnancy outcomes. MATERIALS AND METHODS: In this multicenter retrospective survey study, the authors compared the pregnancy outcomes of BD patients with the healthy controls. RESULTS: A total of 298 pregnancies of 94 patients with BD and 219 pregnancies of 95 healthy controls were evaluated. The mean birth weight of all babies of women with BD and the control group were 3,214 grams and 3,351 grams, respectively (p = 0.028). The miscarriage rates were also higher in the BD group. The com- plication rates of pregnancy with hypertension, preeclampsia, preterm labour in the study group and the control group were 12.8% and 11.6%, respectively (p = 0.489). CONCLUSION: The current study demonstrated that BD patients delivered smaller babies and they have higher miscarriage rates when compared to the healthy controls which might be due to the vasculitis of the placenta.


Assuntos
Síndrome de Behçet/complicações , Complicações na Gravidez , Aborto Espontâneo/epidemiologia , Adulto , Feminino , Humanos , Recém-Nascido , Gravidez , Resultado da Gravidez , Estudos Retrospectivos
13.
Oper Dent ; 49(3): 353-363, 2024 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-38807323

RESUMO

PURPOSE: This study aimed to evaluate the enamel remineralization efficacy of enamel matrix derivative (EMD), experimental bioactive glass (BAG), and fluoride varnish in vitro. METHODS AND MATERIALS: Artificial initial caries lesions were developed on fifty human enamel specimens using demineralization solution (pH 4.5, 37°C, 96 hours). Specimens were randomly assigned to five groups (n=10): I-5% NaF varnish (Enamelast), II-experimental 58S5 BAG+37% phosphoric acid (PA), III-EMD (Emdogain) + Ethylenediaminetetraacetic Acid (EDTA), IV-EMD+37% PA, V-Control (untreated). All remineralization agents were applied with pH cycling for seven days. The specimens were scanned by spectral domain optical coherence tomography (SD-OCT) at baseline, at demineralization, and after pH cycling. Lesion depths were measured using image analysis software (ImageJ). Lesions were evaluated using surface microhardness (SMH) and two fluorescence methods (FluoreCam and DIAGNOdent Pen [DDPen]). The data were statistically analyzed by Kruskal Wallis, Friedman, and Wilcoxon tests (α=0.05). RESULTS: According to SD-OCT results, fluoride varnish was found to be the most effective agent in reducing lesion depth (p=0.005). All agents increased the SMH values after pH cycling. No significant difference was found among fluoride varnish, BAG, and EMD+PA groups. These SMH values were significantly higher than EMD+EDTA and control groups (p<0.001). All groups showed lower DDPen scores compared with the control group (p<0.001), however, no significant difference was found among the remineralization agents. In FluoreCam assessment, size and intensity values of all treated groups showed improvement. However, there was no significant difference between the treatment groups in terms of FluoreCam size measurements (p=0.186). CONCLUSION: 58S5 BAG and EMD+PA have remineralization capacity as effective as fluoride varnish. EMD+PA showed better SMH and lesion intensity results than EMD+EDTA.


Assuntos
Esmalte Dentário , Fluoretos Tópicos , Remineralização Dentária , Humanos , Remineralização Dentária/métodos , Fluoretos Tópicos/uso terapêutico , Esmalte Dentário/efeitos dos fármacos , Cariostáticos/uso terapêutico , Cárie Dentária/prevenção & controle , Técnicas In Vitro , Fluoreto de Sódio/uso terapêutico , Vidro , Tomografia de Coerência Óptica/métodos , Desmineralização do Dente/prevenção & controle , Desmineralização do Dente/tratamento farmacológico , Ácido Edético/uso terapêutico
14.
Oper Dent ; 49(2): 166-177, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38349840

RESUMO

PURPOSE: This study aimed to evaluate the effects of two desensitizers and the Er,Cr:YSGG laser on human dentin tubules, applied alone or in combination. METHODS: Ninety-six dentin specimens were obtained from extracted third molars and divided into six groups: Group 1: no-treatment (Control); Group 2: nano-hydroxyapatite desensitizer (NhapD); Group 3: NhapD+Er,Cr:YSGG laser (L); Group 4: Er,Cr:YSGG laser (L); Group 5: glutaraldehyde desensitizer (GD); and Group 6: GD+L, respectively. All specimens were evaluated using scanning electron microscopy. The diameter and the number of open dentin tubules, the tubules' occluding ratio, and the mineral coverage area were measured via the Image J software at 2000× magnification. Atomic force microscopy was used to determine the blocking mechanism of desensitizing treatments and the surface morphology of dentin specimens. One-way ANOVA and Tukey tests were used for statistical analysis. RESULTS: The number of open tubules and the mean diameter of tubules for all treatment groups showed statistically significant differences from the control group The NhapD+L group had a significantly lower number of open tubules than the L and GD groups. The NhapD+L and L groups significantly had higher occluding ratios than the other groups. CONCLUSIONS: The present study showed that the Er,Cr:YSGG laser alone was effective in terms of tubule occlusion and also contributed to increasing the occluding ratio of nano-hydroxyapatite. It may be recommended to use the Er,Cr:YSGG laser with nano-hydroxyapatite desensitizers to achieve effective tubule occlusion.


Assuntos
Dessensibilizantes Dentinários , Lasers de Estado Sólido , Humanos , Lasers de Estado Sólido/uso terapêutico , Dentina , Dente Serotino , Dessensibilizantes Dentinários/farmacologia , Dessensibilizantes Dentinários/uso terapêutico
15.
Clin Exp Dermatol ; 38(2): 154-5, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22830330

RESUMO

Intravenous (IV) calcium is usually given to temporarily treat the effects of hyperkalaemia on muscle and heart. When extravasation of a calcium gluconate infusion occurs, there may be rapid and marked swelling and erythema, with signs of soft-tissue necrosis or infection, and ensuing extensive local calcification, called calcinosis cutis. We report a 26-year-old woman who was hospitalized for exacerbation of acute intermittent porphyria. She had a history of hypertension and chronic renal failure. On the second day of her hospitalization, she developed hyperpotassaemia (6.7 mEq/L potassium; normal range 3.5-5 mEq/L). She was given an IV infusion of 10 mL calcium gluconate into the left dorsal pedal vein. Bullous skin reactions occurred in the infusion area nearly 2 h after administration. The patient's leg was elevated and the lesions cleaned with 0.9% saline. By day 9 of hospitalization, the lesions had markedly regressed. Several drugs have been associated with dermoepidermal blistering as an adverse drug reaction, but there is only one existing report in the literature about this side-effect associated with calcium gluconate. Clinicians should be alert to the possibility of bullous skin reactions, which may be a predictor of extravasation and necrosis, when treating patients with IV calcium gluconate.


Assuntos
Extravasamento de Materiais Terapêuticos e Diagnósticos/complicações , Compostos Organometálicos/efeitos adversos , Dermatopatias Vesiculobolhosas/induzido quimicamente , Trissacarídeos/efeitos adversos , Adulto , Feminino , , Humanos , Infusões Intravenosas , Perna (Membro)
16.
Am J Otolaryngol ; 34(4): 337-44, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23398730

RESUMO

Sinus nitric oxide (NO) measurements present a novel and promising approach to help overcome difficulties and confounding variables associated with nasal NO measurements such as the nasal cycle, ostial patency, and individual contribution to total NO production of each sinus. Conflicting results reported on nasal NO measurements in various sinonasal diseases are presumed to originate from the variable diffusion of sinus NO into the nose where it is measured. This study presents a novel technique and research method for direct measurement of sinus NO. The authors' original technique of individual, non-destructive catheterization of the sinuses through their natural ostia is developed and refined to allow accurate measurements of NO produced in the sinuses. Our study indicates that reproducible catheterization of the sinuses through their natural ostia can be performed in the clinical research setting under local and topical anesthesia. The model can be used to test the effects of various conditions on nasal and sinus NO production in a variety of disease models and the variables affecting sinonasal gas exchange can be differentially studied. Volunteer healthy adult human subjects without nasal allergies are used. An endoscopic nasal exam with topical anesthesia followed by in vitro allergy testing is performed to determine eligibility. Sinus computerized tomography (CT) scans are used to delineate anatomic features and to calculate paranasal sinus volumes. Continuous flow sinus air sampling and NO measurement with a chemiluminescence analyzer is obtained through polyethylene tube catheters (PEC) placed endoscopically into an aerated major paranasal sinus. Catheters are introduced through natural ostia under local and topical anesthesia. Nasal and differential sinus NO measurements are performed.


Assuntos
Catéteres , Endoscopia/métodos , Cavidade Nasal/metabolismo , Óxido Nítrico/análise , Doenças dos Seios Paranasais/diagnóstico , Adolescente , Adulto , Idoso , Cateterismo/métodos , Desenho de Equipamento , Segurança de Equipamentos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cavidade Nasal/fisiologia , Óxido Nítrico/metabolismo , Seios Paranasais/fisiologia , Valores de Referência , Estudos de Amostragem , Sensibilidade e Especificidade , Adulto Jovem
17.
Oper Dent ; 48(3): 317-328, 2023 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-36745519

RESUMO

PURPOSE: The objective of this study was to assess the effect of bioactive pulp-capping materials on human dental pulp stem cell (hDPSC) behavior in terms of cell viability and bioactivity via mineralization potential. METHODS AND MATERIALS: Nanoparticles of 58S5 bioactive glass (nBG) powder were elaborated by a sol-gel process. Primer hDPSCs were cultured with experimental nBG, Biodentine, TheraCal LC, and ProRoot mineral trioxide aggregate (MTA) extracts. Cell viability was measured for 1, 3, and 7 days by water-soluble tetrazolium salts (WST-1) assay. Expression of mineralization-related marker genes (dentin sialophosphoprotein [DSPP] and osteocalcin [OCN]) was quantified by a real-time polymerase chain reaction. Detection of DSPP protein expression in hDPSCs was also assessed by western blotting. Alizarin red staining was used to detect the formation of mineralized nodules, and alkaline phosphatase (ALP) activity was quantified by a photometric method (days 7 and 14). All data were statistically analyzed with a one-way analysis of variance (ANOVA) and Tukey's post-hoc test (p<0.05). RESULTS: The cell viability of hDPSCs in all groups decreased except for nBG, and the lowest cell viability was determined in TheraCal LC at all incubation times. nBG and MTA showed significantly higher ALP activity than the control group. The tested materials elevated the calcium nodule form of hDPSCs except for TheraCal LC. The highest DSPP expression was seen in nBG for both incubation times. CONCLUSION: nBG promotes differentiation and mineralization of hDPSCs at a higher rate than other bioactive pulp-capping materials tested.


Assuntos
Compostos de Cálcio , Polpa Dentária , Humanos , Sobrevivência Celular , Compostos de Cálcio/farmacologia , Silicatos/farmacologia , Diferenciação Celular , Células-Tronco , Combinação de Medicamentos , Óxidos/farmacologia
18.
Med Oral Patol Oral Cir Bucal ; 17(2): e311-9, 2012 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-22143686

RESUMO

OBJECTIVE: The aim of this study was to evaluate and compare the effects of rapid maxillary expansion (RME) and surgically assisted RME (SARME) in the sagittal, vertical, and transverse planes. STUDY DESIGN: Orthodontic records of 28 patients were selected retrospectively and divided into two treatment groups. Group 1 comprised 14 patients (4 boys, 10 girls, mean age 14.2 ± 0.74 years) who had been treated with RME. Group 2 comprised 14 patients (4 boys, 10 girls, mean age 19.6 ± 2.73 years) who had been treated with SARME. Measurements were performed on lateral and posteroanterior cephalograms and dental casts obtained before (T0) and after (T1) expansion. RESULTS: Statistically significant differences were found in soft tissue convexity angle, anterior face height, and upper nasal width in group 1, and in U1-NA length and posterior face height measurements in group 2 (P<.05). In both groups significant increases were found in interpremolar, intermolar, maxillary, and lower nasal widths and in anterior lower face height (P<.01). Statistically significant intergroup differences were found in the ANB angle (P<.05) and maxillary intercanine (P<.01) measurements. CONCLUSION: With both RME and SARME, successful expansion of maxillary dentoalveolar structures and nasal cavity and palatal widening were achieved. Sagittal plane effects of SARME were similar to those of RME on dental skeletal and airway measurements.


Assuntos
Maxila/cirurgia , Técnica de Expansão Palatina , Adolescente , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores de Tempo , Adulto Jovem
19.
Rev Sci Instrum ; 92(2): 023705, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-33648098

RESUMO

We present in this paper a new design of a capacitive calibration kit for scanning microwave microscopy (SMM). As demonstrated by finite element modelings, the produced devices are highly independent of material parameters due to their lateral configuration. The fabrication of these gold-based structures is realized by using well established clean-room techniques. SMM measurements are performed under different conditions, and all capacitive structures exhibit a strong contrast with respect to the non-capacitive background. The obtained experimental data are employed to calibrate the used SMM tips and to extract the capacitance of produced devices following a method based on the short-open-load calibration algorithm for one-port vector network analyzers. The comparison of experimental capacitance and nominal values provided by our models proves the applicability of the used calibration approach for a wide frequency range.

20.
JPEN J Parenter Enteral Nutr ; 45(6): 1172-1180, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-32914877

RESUMO

BACKGROUND: The Global Leadership Initiative on Malnutrition (GLIM) has developed new criteria for diagnosing patients with malnutrition. The aims of this study were to investigate the prevalence of malnutrition according to the GLIM criteria, Subjective Global Assessment (SGA), and Nutrition Risk Screening 2002 (NRS-2002) and their association with long-term mortality in patients hospitalized for acute illnesses. METHODS: A retrospective analysis was performed in a sample of 231 patients with different comorbidities hospitalized for acute illnesses in medical or surgical wards. Nutrition status was retrospectively assessed with GLIM criteria using patients' records at admission in addition to SGA and NRS-2002. The agreement between the tools was calculated using κ statistics, and the association of malnutrition according to each tool and mortality were analyzed using Cox regression analysis. RESULTS: The mean age of the patients was 62.2 ± 18.2 years, and 56.7% were women. The prevalence of malnutrition was 35.9% with GLIM criteria, 37.2% with SGA, and 38% with NRS-2002. The agreement between tools was good (GLIM-SGA, κ = 0.804; GLIM-NRS-2002, κ = 0.784). During a median follow-up period of 63.2 months, 79 deaths occurred. The sensitivity in predicting 5-year mortality was 59.49%, 58.23%, and 58.23%, and specificity was 76.32%, 73.68%, and 72.37% for GLIM criteria, SGA, and NRS-2002, respectively. After adjusting for confounders, GLIM criteria best predicted 5-year mortality (hazard ratio, 3.09; 95% CI, 1.96-4.86; P < .001). CONCLUSIONS: Our findings support the effectiveness of GLIM in diagnosing malnutrition and predicting all-cause mortality among patients hospitalized for acute illnesses.


Assuntos
Desnutrição , Estado Nutricional , Doença Aguda , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Liderança , Desnutrição/diagnóstico , Desnutrição/epidemiologia , Pessoa de Meia-Idade , Avaliação Nutricional , Estudos Retrospectivos
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