Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 441
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
1.
Anaesthesia ; 79(7): 759-769, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38403817

RESUMO

There is increasing interest in the use of short-acting opioids such as remifentanil to facilitate tracheal intubation. The aim of this systematic review was to determine the efficacy and safety of remifentanil for tracheal intubation compared with neuromuscular blocking drugs in adult patients. We conducted a systematic search for randomised controlled trials evaluating remifentanil for tracheal intubation. Primary outcomes included tracheal intubation conditions and adverse events. Twenty-one studies evaluating 1945 participants were included in the analysis. Use of remifentanil (1.5-4.0 µg.kg-1) showed no evidence of a difference in tracheal intubation success rate compared with neuromuscular blocking drugs (risk ratio (95%CI) 0.97 (0.94-1.01); six studies; 1232 participants; I2 28%; p = 0.16; moderate-certainty evidence). Compared with neuromuscular blocking drugs, the use of remifentanil (2.0-4.0 µg.kg-1) makes little to no difference in terms of producing excellent tracheal intubation conditions (risk ratio (95%CI) 1.16 (0.72-1.87); two studies; 121 participants; I2 31%, p = 0.54; moderate-certainty of evidence). There was no evidence of an effect between remifentanil (2.0-4.0 µg.kg-1) and neuromuscular blocking drugs for bradycardia (risk ratio (95%CI) 0.44 (0.01-13.90); two studies; 997 participants; I2 81%; p = 0.64) and hypotension (risk ratio (95%CI) 1.05 (0.44-2.49); three studies; 1071 participants; I2 92%; p = 0.92). However, the evidence for these two outcomes was judged to be of very low-certainty. We conclude that remifentanil may be used as an alternative drug for tracheal intubation in cases where neuromuscular blocking drugs are best avoided, but more studies are required to evaluate the haemodynamic adverse events of remifentanil at different doses.


Assuntos
Intubação Intratraqueal , Bloqueadores Neuromusculares , Remifentanil , Humanos , Remifentanil/administração & dosagem , Intubação Intratraqueal/métodos , Bloqueadores Neuromusculares/administração & dosagem , Adulto , Analgésicos Opioides/administração & dosagem , Piperidinas/administração & dosagem
2.
J Electron Mater ; 51(10): 5482-5491, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35935037

RESUMO

We report herein the synthesis of ZnFe2O4 (ZF) nanoparticles via a simple and eco-friendly green route using lemon juice as a reducing agent and fuel. The effect of different calcination temperatures on the particle size and bandgap of grown ZF nanoparticles was investigated. The structural, morphological and optical properties of the synthesized nanoparticles were evaluated using synchrotron x-ray diffraction (S-XRD), field emission scanning electron microscopy (FE-SEM) and UV-visible diffuse reflectance spectroscopy (UV-Vis-DRS), respectively. S-XRD confirmed a spinel F-d3m phase in all four samples calcined at 350°C, 550°C, 750°C and 1000°C. The crystallite size calculated from the Debye-Scherrer equation showed an increase from 14 nm to 20 nm with the increase in calcination temperature. Williamson-Hall (W-H) analysis revealed an increase in the particle size from 16 nm to 21 nm and a decrease in the lattice microstrain from 0.913 × 10-3 to 0.154 × 10-4 with the increase in calcination temperature. The optical bandgap of the ZF nanoparticles obtained from UV-Vis-DRS decreased from 2.265 eV to 2.225 eV with the increase in calcination temperature. The ZF nanoparticles with tunable particle size, lattice microstrain and optical bandgap have potential application in ferrofluid, electromagnetic shielding, photocatalysis, hyperthermia, dye degradation and other areas. Supplementary Information: The online version contains supplementary material available at 10.1007/s11664-022-09813-2.

3.
J Anaesthesiol Clin Pharmacol ; 37(3): 469-474, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34759564

RESUMO

BACKGROUND AND AIMS: To evaluate the role of experience in acquisition of skill of orotracheal intubation in adults. MATERIAL AND METHODS: A prospective randomized study was conducted on 307 patients of either sex, belonging to ASA grade I and II (aged 18-60 years) posted for surgery under general anaesthesia. The patients were subjected to DL and ETI procedure, which was performed by five different groups of participants. Group 1 consisted of first-year resident of anaesthesiology with experience of less than 10 intubations, group 2 for second-year resident, group 3 for third-year resident, group 4 for senior resident and group 5 for consultant. Ease of mask ventilation, time taken for intubation, number of attempts, success rate, and ease of intubation were assessed for all the groups. RESULTS: Categorical variables were analysed using Chi-square test. For all statistical tests, a P value less than 0.05 was taken as a significant difference. Maximum difficulty in mask ventilation was encountered by group 1 anaesthesiologist, that is, in 69.2% of the patients. Group 1 took maximum time to intubate, that is, 47.98 ± 31.54 sec and least time was taken by group 5 anaesthesiologist (9.55 ± 6.93) sec. First attempt success rate was least in group (80.0%). Group 1 had success rate of 96.9%, whereas rest all groups had 100% success. CONCLUSION: Skill of mask ventilation and intubation and time taken for intubation grossly improves with increasing experience. Minimum of 25 intubation attempts should be required by an anaesthesiologist resident in elective scenario to achieve 100% success rate in our study.

4.
Diabet Med ; 37(6): 1058-1065, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32112453

RESUMO

AIM: To evaluate the burden and association of cardiometabolic risk factors in the spouses of women with and without hyperglycaemia in pregnancy. METHODS: Women with (n = 204) and without (n = 197) hyperglycaemia in pregnancy, along with their spouses, participated in this cross-sectional study. The hyperglycaemia in pregnancy group included women with gestational diabetes and diabetes in pregnancy. A detailed questionnaire was completed for all participants (men and women), documenting relevant personal and medical history, along with biochemical investigations (men). RESULTS: A total of 401 couples were evaluated at the time point during the pregnancy of 24.7 ± 5.2 gestational weeks (mean ± sd). Dysglycaemia (prediabetes or diabetes), overweight/obesity (BMI ≥25 kg/m2 ) and metabolic syndrome were detected in 120 (58.9%), 123 (60.3%) and 98 spouses (48.3%) of women with hyperglycaemia in pregnancy, respectively. In the fully adjusted model, an increased risk of dysglycaemia [odds ratio 1.43 (95% CI 0.95-2.17); P = 0.088], overweight/obesity [odds ratio 1.49 (95% CI 0.98-2.27); P = 0.064] and metabolic syndrome [odds ratio 2.00 (95% CI 1.30-3.07); P = 0.001] was seen in the spouses of women with hyperglycaemia in pregnancy. The prevalence of these metabolic conditions was higher in spouses of women with diabetes in pregnancy compared to spouses of women with gestational diabetes mellitus. CONCLUSIONS: A high burden of cardiometabolic risk factors was observed in the spouses of women with hyperglycaemia in pregnancy. The opportunity provided by pregnancy could be used by the healthcare system not only to improve the health of the woman and her offspring, but also her spouse.


Assuntos
Diabetes Mellitus/epidemiologia , Diabetes Gestacional/epidemiologia , Síndrome Metabólica/epidemiologia , Obesidade/epidemiologia , Gravidez em Diabéticas/epidemiologia , Cônjuges/estatística & dados numéricos , Adulto , Fatores de Risco Cardiometabólico , Estudos Transversais , Feminino , Humanos , Índia/epidemiologia , Sobrepeso/epidemiologia , Estado Pré-Diabético/epidemiologia , Gravidez
5.
Epilepsy Behav ; 106: 106967, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32179501

RESUMO

PURPOSE: This multicenter service evaluation explores the efficacy and tolerability of brivaracetam (BRV) in an unselected, consecutive population in 'real-life' clinical settings. METHOD: We retrospectively collected data from patient records at 11 UK hospitals and epilepsy centers. Consecutive patients prescribed BRV with at least 3 months of follow-up (FU) were included. Apart from reporting effectiveness and tolerability of BRV across the whole cohort, we compared treatment outcomes depending on previous levetiracetam use (LEV+ versus LEV-), comorbid learning disability (LD+ versus LD-), and epilepsy syndrome (focal versus generalized epilepsy). RESULTS: Two hundred and ninety patients (46% male, median age: 38 years, range: 15 to 77) with ≥3 months of FU were included. The median duration of BRV exposure was 12 months (range: 1 day to 72 months). Overall BRV retention was 71.1%. While 56.1% of patients improved in terms of seizure frequency category (daily, weekly, monthly, yearly seizures), 23.1% did not improve on this measure and 20.8% deteriorated. In terms of seizure frequency, 21% of patients experienced a ≥50% reduction, with 7.0% of all patients becoming seizure-free. Treatment-emergent adverse events (AEs) were reported by 107 (36.9%) patients, but there were no serious AEs. The commonest AEs were sedation/fatigue (18.3%), mood changes (9.0%), and irritability/aggression (4.8%). There were no significant differences in drug retention, seizure frequency outcomes, or AEs between the LEV+ and LEV- subgroups, or between patients with generalized or focal epilepsies. Although 15.5% of patients in the LD+ group achieved a ≥50% reduction, this rate was lower than in the LD- group. CONCLUSIONS: This 'real-life' evaluation suggests that reductions in seizure frequency can be achieved with BRV in patients with highly refractory epilepsy. Brivaracetam may be a useful treatment option in patients who have previously failed to respond to or tolerate LEV, those with LD, or (off-label) those with generalized epilepsies.


Assuntos
Anticonvulsivantes/uso terapêutico , Epilepsias Parciais/tratamento farmacológico , Epilepsias Parciais/epidemiologia , Epilepsia Generalizada/tratamento farmacológico , Epilepsia Generalizada/epidemiologia , Pirrolidinonas/uso terapêutico , Adolescente , Adulto , Idoso , Anticonvulsivantes/efeitos adversos , Estudos de Coortes , Fadiga/induzido quimicamente , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Pirrolidinonas/efeitos adversos , Estudos Retrospectivos , Convulsões/tratamento farmacológico , Convulsões/epidemiologia , Resultado do Tratamento , Reino Unido/epidemiologia , Adulto Jovem
7.
Dis Esophagus ; 31(5)2018 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-29293978

RESUMO

Longitudinal esophageal body shortening with swallow-induced peristalsis has been reported in healthy individuals. Esophageal shortening is immediately followed by esophageal re-elongation, and the lower esophageal sphincter (LES) returns to the baseline position. High-resolution manometry (HRM) allows for objective assessment of extent of shortening and duration of shortening. In patients without hiatal hernia at rest, swallow-induced esophageal shortening can lead to transient hiatal hernia (tHH) which at times may persist after the completion of swallow. This manometric finding has not been investigated in the literature, but a question arises whether this swallow-induced transient herniation can effect on the likelihood of gastroesophageal reflux. This study aims to assess the relationship between gastroesophageal reflux and the subtypes of swallow-induced esophageal shortening, i.e. tHH and non-tHH, in patients without hiatal hernia at rest. After Institutional Review Board (IRB) approval, we queried a prospectively maintained database to identify patients who underwent HRM evaluation and 24-hour pH study between January to December 2015. Patients with type-I esophagogastric junction (EGJ) morphology (i.e. no hiatal hernia) according to the Chicago classification v3.0 were included. The patterns of the esophageal shortening with swallows were divided into two subtypes, i.e. tHH and non-tHH. tHH was defined as an EGJ double high-pressure zones (≥1 cm) at the second inspiration after the termination of swallow-induced esophageal body contraction. The number of episodes of tHH was counted per 10 swallows and tHH size was measured for each patient. In total, 41 patients with EGJ morphology Type-I met the inclusion criteria. The mean age was 47.2 years, 35 patients (85.4%) were women, and the mean body mass index was 33.9 kg/m2. The mean number of tHH episodes was 3 out of 10 swallows; mean maximal tHH size was 1.3 cm. Patients who had tHH in ≥3 out of 10 swallows (n = 16; 39.0%) were more likely to have abnormal DeMeester scores than patients with <3 swallows (56% vs. 28%; P = 0.070). Patients with maximal tHH ≥2 cm in at least 1 swallow (n = 17; 41.5%) were more likely to experience pathological reflux than patients with maximal tHH <2 cm (59% vs. 25%; P = 0.029). In conclusion, we showed that, in a subset of patients with Type-I EGJ morphology, swallowing induced transient EGJ double high-pressure zones (≥1 cm) after peristalsis. We have named this new manometric finding the swallow-induced tHH. A high prevalence of pathological reflux disease was observed in patients with maximal tHH ≥2 cm. The degree of swallow-induced tHH could be an early indicator of lower esophageal sphincter dysfunction in patients without manometric hiatal hernia.


Assuntos
Deglutição/fisiologia , Esôfago/fisiopatologia , Refluxo Gastroesofágico/fisiopatologia , Hérnia Hiatal/fisiopatologia , Transtornos da Motilidade Esofágica/diagnóstico , Transtornos da Motilidade Esofágica/fisiopatologia , Esfíncter Esofágico Inferior/fisiopatologia , Monitoramento do pH Esofágico , Junção Esofagogástrica/fisiopatologia , Feminino , Refluxo Gastroesofágico/diagnóstico , Hérnia Hiatal/diagnóstico , Humanos , Masculino , Manometria/métodos , Pessoa de Meia-Idade , Peristaltismo/fisiologia , Estatística como Assunto
8.
Dis Esophagus ; 30(6): 1-6, 2017 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-30052824

RESUMO

We propose a new classification for esophagogastric junction (EGJ) incorporating both physiologic and morphologic characteristics. Additionally, we contrast it with the Chicago v 3.0 EGJ classification. With Institutional Review Board (IRB) approval, prospectively maintained database was queried to identify patients who underwent high-resolution manometry (HRM) and pH-study between October 2011 and October 2015. Patients with prior foregut intervention, pH study on acid suppression, esophageal dysmotility, or lower esophageal sphincter-crural diaphragm separation of >5 cm were excluded. We classified patients into three groups-Type-A: Complete overlap of lower esophageal sphincter-crural diaphragm (single high-pressure zone); Type-B: Double high-pressure zone with pressure inversion point (PIP) at or above lower esophageal sphincter; Type-C: Double high-pressure zone with PIP below lower esophageal sphincter. A total of 214 included patients were divided into Type-A (n = 101), Type-B (n = 32), and Type-C (n = 81). Abdominal lower esophageal sphincter length (AL), lower esophageal sphincter pressure (LESP), and lower esophageal sphincter pressure integral (LESPI) were significantly lower in Type-C than both Type-A and Type-B [AL(cm): 0.2 vs. 2(P < 0.001) vs. 1.6(P <0.001); LESP(mmHg): 20.1 vs. 32.1(P < 0.001) vs. 29.2(P < 0.001); LESPI(mmHg.cm.s): 187 vs. 412(P < 0.001) vs. 343(P < 0.05)] while overall lower esophageal sphincter length(OL) and Integrated Relaxation Pressure (IRP) were significantly lower in Type-C than Type-A [OL(cm): 2.9 vs. 3.6(P < 0.001); IRP(mmHg): 8.2 vs. 9.6(P < 0.05)]. Type-C patients had significantly higher positive pH score (>14.7) than Type-A and Type-B [72% vs. 47% (P < 0.05) vs. 41% (P < 0.001)]. In Type-C morphology, there is both anatomical and physiological deterioration, weakest lower esophageal sphincter function (abdominal length, lower esophageal sphincter pressure, and lower esophageal sphincter pressure integral) and is most likely to be associated with pathological reflux. This proposed classification incorporates both physiological and morphological derangements in a graded fashion.


Assuntos
Doenças do Esôfago/classificação , Junção Esofagogástrica/fisiologia , Esôfago/fisiologia , Gastropatias/classificação , Bases de Dados Factuais , Diafragma/fisiologia , Doenças do Esôfago/fisiopatologia , Esfíncter Esofágico Inferior/fisiologia , Monitoramento do pH Esofágico , Junção Esofagogástrica/anatomia & histologia , Esôfago/anatomia & histologia , Feminino , Refluxo Gastroesofágico/classificação , Refluxo Gastroesofágico/fisiopatologia , Humanos , Masculino , Manometria/métodos , Pessoa de Meia-Idade , Estudos Prospectivos , Gastropatias/fisiopatologia
9.
10.
Andrologia ; 48(10): 1236-1243, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26952773

RESUMO

The standardised extract of root of safed musli (Chlorophytum borivilianum) was evaluated for its aphrodisiac potential and safety profile on reproductive system. Wistar albino rats were trained to provide sexual experience under a dim red light (10 W) in a glass tank. Male and female rats were placed periodically in the glass tank in a particular order, that is male followed by introduction of the receptive female. Dosing of extract was carried out for 54 days at 125 and 250 mg kg-1 p.o to male rats. On 14th and 28th days, the animals were observed from the cage side for sexual behaviours. Safed musli at both dose levels enhanced sexual vigour and libido which might be useful for treatment of sexual dysfunction in male till 28th day. Safety profile was assessed after 54 days of drug treatment, where both doses showed an increase in sperm count and increase in sperm motility. Thus, it can be stated that both doses possessed the spermatogenic potential, which would be highly beneficial in treating oligospermia or low sperm count. After 54 days of study, there was increase in sperm abnormality (%) at both doses, but not more than 10%, which indicated that this formulation will not induce infertility.


Assuntos
Afrodisíacos/farmacologia , Asparagaceae , Libido/efeitos dos fármacos , Extratos Vegetais/farmacologia , Comportamento Sexual Animal/efeitos dos fármacos , Motilidade dos Espermatozoides/efeitos dos fármacos , Animais , Feminino , Masculino , Ratos , Ratos Wistar , Contagem de Espermatozoides
11.
J Assoc Physicians India ; 62(5): 385-90, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-25438482

RESUMO

AIMS: Impaired nitric oxide synthesis has been implicated as one of the underlying causes of diabetic painful neuropathy (DPN). Hence, effects of a cutaneous, nitric oxide releasing patch (NitroSense Derma Protect) were evaluated in subjects with DPN. METHODS: Fifty diabetics were randomised to active/placebo arms after a 2 wk wash-out period. Patients received 24 mg patches (each patch releases around 9 nmol/cm2/min of nitric oxide) for 3 hrs, every other day during a 3 wks period, or indistinguishable placebo patches. The extent of pain was recorded at start, at each visit and following completion of the study. Changes in pain from baseline were measured using the 11 point lickert scale (PLS), visual analogue scale (VAS), short form mcgill, pain questionnaire (SF-MPQ), present pain intensity (PPI) scale. RESULTS: Subjects treated with patch experienced a statistically significant reduction in pain from baseline when compared to placebo (PLS scale; p = 0.05). Defining responders as subjects with a > 50% reduction in PLS score from baseline, the number needed to treat (NNT) was calculated as 3.0. A significant post-treatment decrease (p = 0.009) in vibration perception threshold (VPT) for left foot after active treatment was observed. CONCLUSIONS: Present results highlight utility of NitroSense Derma Protect as controllable nitric oxide source for patients with DPN.


Assuntos
Anti-Inflamatórios não Esteroides/administração & dosagem , Neuropatias Diabéticas/tratamento farmacológico , Doadores de Óxido Nítrico/administração & dosagem , Administração Cutânea , Adulto , Idoso , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Pé Diabético/tratamento farmacológico , Pé Diabético/fisiopatologia , Neuropatias Diabéticas/fisiopatologia , Método Duplo-Cego , Estudos de Viabilidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Óxido Nítrico/administração & dosagem , Óxido Nítrico/metabolismo , Números Necessários para Tratar , Medição da Dor/efeitos dos fármacos , Limiar Sensorial/efeitos dos fármacos , Vibração
12.
Br J Cancer ; 108(6): 1288-97, 2013 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-23481183

RESUMO

BACKGROUND: Successful immunotherapy will require alteration of the tumour microenvironment and/or decreased immune suppression. Tumour-associated macrophages (TAMs) are one major factor affecting tumour microenvironment. We hypothesised that altering TAM phenotype would augment the efficacy of immunotherapy. METHODS: We and others have reported that 5,6-Dimethylxanthenone-4-acetic-acid (DMXAA, Vadimezan) has the ability to change TAM phenotypes, inducing a tumour microenvironment conducive to antitumour immune responses. We therefore combined DMXAA with active immunotherapies, and evaluated anti-tumour efficacy, immune cell phenotypes (flow cytometry), and tumour microenvironment (RT-PCR). RESULTS: In several different murine models of immunotherapy for lung cancer, DMXAA-induced macrophage activation significantly augmented the therapeutic effects of immunotherapy. By increasing influx of neutrophils and anti-tumour (M1) macrophages to the tumour, DMXAA altered myeloid cell phenotypes, thus changing the intratumoural M2/non-M2 TAM immunoinhibitory ratio. It also altered the tumour microenvironment to be more pro-inflammatory. Modulating macrophages during immunotherapy resulted in increased numbers, activity, and antigen-specificity of intratumoural CD8(+) T cells. Macrophage depletion reduced the effect of combining immunotherapy with macrophage activation, supporting the importance of TAMs in the combined effect. CONCLUSION: Modulating intratumoural macrophages dramatically augmented the effect of immunotherapy. Our observations suggest that addition of agents that activate TAMs to immunotherapy should be considered in future trials.


Assuntos
Adenocarcinoma Bronquioloalveolar/terapia , Carcinoma Pulmonar de Lewis/terapia , Imunoterapia , Neoplasias Pulmonares/terapia , Ativação de Macrófagos/efeitos dos fármacos , Microambiente Tumoral/imunologia , Xantonas/uso terapêutico , Adenocarcinoma Bronquioloalveolar/imunologia , Adenocarcinoma Bronquioloalveolar/patologia , Animais , Antineoplásicos/uso terapêutico , Linfócitos T CD8-Positivos/imunologia , Carcinoma Pulmonar de Lewis/imunologia , Carcinoma Pulmonar de Lewis/patologia , Terapia Combinada , Feminino , Neoplasias Pulmonares/imunologia , Neoplasias Pulmonares/patologia , Macrófagos/efeitos dos fármacos , Macrófagos/imunologia , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Células Mieloides/citologia , Células Mieloides/imunologia , Neutrófilos/citologia , Neutrófilos/imunologia
13.
Ann Oncol ; 24(2): 377-384, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23028037

RESUMO

BACKGROUND: The prognostic value of histologic grade (HG) in invasive lobular carcinoma (ILC) remains uncertain, and most ILC tumors are graded as HG2. Genomic grade (GG) is a 97-gene signature that improves the prognostic value of HG. This study evaluates whether GG may overcome the limitations of HG in ILC. METHODS: Gene expression data were generated from frozen tumor samples, and GG calculated according to the expression of 97 genes. The prognostic value of GG was assessed in a stratified Cox regression model for invasive disease-free survival (IDFS) and overall survival (OS). RESULTS: A total of 166 patients were classified by GG. HG classified 33 (20%) tumors as HG1, 120 (73%) as HG2 and 12 (7%) as HG3. GG classified 106 (64%) tumors as GG low (GG1), 29 (17%) as GG high (GG3) and 31 (19%) as equivocal (cases not classified as GG1 or GG3). The median follow-up time was 6.5 years. In multivariate analyses, GG was associated with IDFS [HR(GG3 vs GG1) 5.6 (2.1-15.3); P < 0.001] and OS [HR(GG3 vs GG1) 7.2, 95% CI (1.6-32.2); P = 0.01]. CONCLUSIONS: GG outperformed HG in ILC and added prognostic value to classic clinicopathologic variables, including nodal status.


Assuntos
Neoplasias da Mama/genética , Neoplasias da Mama/mortalidade , Carcinoma Lobular/genética , Carcinoma Lobular/mortalidade , Neoplasias da Mama/patologia , Carcinoma Lobular/patologia , Intervalo Livre de Doença , Feminino , Expressão Gênica , Humanos , Estimativa de Kaplan-Meier , Antígeno Ki-67/metabolismo , Pessoa de Meia-Idade , Análise Multivariada , Gradação de Tumores , Prognóstico , Modelos de Riscos Proporcionais , Receptor ErbB-2/metabolismo , Análise de Sobrevida , Análise Serial de Tecidos , Transcriptoma
14.
Int J Obstet Anesth ; 54: 103637, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36827944

RESUMO

BACKGROUND: Prediction of a difficult airway is of paramount importance for an anaesthesiologist. Various anatomical and physiological factors contribute to a difficult airway in pregnant females, especially those with pre-eclampsia. The aim of the study was to assess airway indices using both routinely used clinical methods and ultrasound. METHODS: Fifty-five non-pregnant females, 55 normotensive pregnant females and 55 females with pre-eclampsia were included in this prospective study. Clinical airway assessment was the modified Mallampati score, thyromental distance, hyomental distance, hyomental distance ratio, chest circumference, neck circumference and chest-to-neck circumference ratio. Sonographic assessment included tongue width, tongue volume, anterior neck soft tissue thickness at the level of hyoid, epiglottis and vocal cords, subglottic diameter, ratio of pre-epiglottic space to anterior, posterior and midpoint of anterior and posterior vocal folds. RESULTS: Several significant differences were observed between pregnant and non-pregnant females, with additional changes in pre-eclamptic females. These included clinical parameters such as the modified Mallampati score and sonographic measurements of tongue width, tongue volume, subglottic diameter, anterior neck soft tissue thickness at the level of hyoid, epiglottis and vocal cords, and the ratio of pre-epiglottic space to anterior, posterior and midpoint of anterior and posterior vocal folds. CONCLUSION: Routinely used clinical methods of airway assessment lack sensitivity and specificity. Ultrasound can visualise anatomical structures in the supraglottic and subglottic views and is encouraging as an airway assessment tool.


Assuntos
Pré-Eclâmpsia , Gravidez , Feminino , Humanos , Estudos Prospectivos , Pré-Eclâmpsia/diagnóstico por imagem , Língua , Osso Hioide , Intubação Intratraqueal/métodos
15.
Epilepsy Behav ; 25(4): 676-81, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23168089

RESUMO

We previously described a communication strategy for the delivery of the diagnosis of psychogenic non-epileptic seizures (PNES) that was acceptable and effective at communicating the psychological cause of PNES. This prospective multicenter study describes the short-term seizure and psychosocial outcomes after the communication of the diagnosis and with no additional treatment. Participants completed self-report measures at baseline, two and six months after the diagnosis (seizure frequency, HRQoL, health care utilization, activity levels, symptom attributions and levels of functioning). Thirty-six participants completed the self-report questionnaires. A further eight provided seizure frequency data. After six months, the median seizure frequency had dropped from 10 to 7.5 per month (p=0.9), 7/44 participants (16%) were seizure-free, and an additional 10/44 (23%) showed greater than 50% improvement in seizure frequency. Baseline questionnaire measures demonstrated high levels of impairment, which had not improved at follow-up. The lack of change in self-report measures illustrates the need for further interventions in this patient group.


Assuntos
Convulsões/diagnóstico , Adulto , Comunicação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Qualidade de Vida/psicologia , Recidiva , Convulsões/psicologia , Inquéritos e Questionários
16.
Reprod Domest Anim ; 47(6): 975-83, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22463675

RESUMO

Cells are blessed with a group of stress protector molecules known as heat shock proteins (HSPs), amongst them HSP70, encoded by HSPA-1A gene, is most abundant and highly conserved protein. Variety of stresses hampers the developmental competence of embryos under in vivo and in vitro conditions. Present work was designed to study the quantitative expression of HSPA-1A mRNA in immature oocytes (IMO), matured oocytes (MO), in vitro produced (IVP) and in vivo-derived (IVD) buffalo embryos to assess the level of stress to which embryos are exposed under in vivo and in vitro culture conditions. Further, HSPA-1A gene sequence was analysed to determine its homology with other mammalian sequences. The mRNA expression analysis was carried out on 72 oocytes (40 IMO; 32 MO), 76 IVP and 55 IVD buffalo embryos. Expression of HSPA-1A was found in oocytes and throughout the developmental stages of embryos examined irrespective of the embryo source; however, higher (p < 0.05) expression was observed in 8-16 cell, morula and blastocyst stages of IVP embryos as compared to IVD embryos. Phylogenetic analysis of bubaline HSPA-1A revealed that it shares 91-98% identity with other mammalian sequences. It can be concluded that higher level of HSPA-1A mRNA in IVP embryos in comparison with in vivo-derived embryos is an indicator of cellular stress in IVP system. This study suggests need for further optimization of in vitro culture system in which HSPA-1A gene could be used as a stress biomarker during pre-implantation development.


Assuntos
Búfalos/embriologia , Técnicas de Cultura Embrionária/veterinária , Fertilização in vitro/veterinária , Regulação da Expressão Gênica no Desenvolvimento/fisiologia , Proteínas de Choque Térmico HSP70/metabolismo , Sequência de Aminoácidos , Animais , Clonagem Molecular , Feminino , Proteínas de Choque Térmico HSP70/genética , Masculino , Modelos Moleculares , Dados de Sequência Molecular , Filogenia , Conformação Proteica , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Reação em Cadeia da Polimerase em Tempo Real/veterinária , Estresse Fisiológico
17.
J Laryngol Otol ; 136(8): 765-768, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35550682

RESUMO

BACKGROUND: The aggressiveness of paediatric cholesteatoma has long been a matter of debate. While much of the evidence is substantiated by data from the Western world, it is further limited by the retrospective nature of most studies. Therefore, this paper presents a comparative analysis of various characteristics of cholesteatoma between paediatric and adult populations seen at our centre. METHODS: A total of 50 patients (25 adults and 25 paediatric) with clinical diagnosis of chronic suppurative otitis media with cholesteatoma underwent canal wall down mastoidectomy over a period of two years. The intra-operative findings were noted and patients were followed up for six months. RESULTS: There was more extensive spread and ossicular erosion in paediatric cases. However, complications such as facial canal dehiscence and lateral semicircular canal dehiscence were more common in adults. CONCLUSION: Paediatric cholesteatoma is more aggressive and invasive than adult cholesteatoma, and the clinical behaviour is consistent with findings from other parts of the world.


Assuntos
Colesteatoma da Orelha Média , Colesteatoma , Otite Média Supurativa , Otite Média , Adulto , Criança , Colesteatoma/cirurgia , Colesteatoma da Orelha Média/complicações , Colesteatoma da Orelha Média/cirurgia , Doença Crônica , Humanos , Processo Mastoide/cirurgia , Mastoidectomia/efeitos adversos , Otite Média/cirurgia , Otite Média Supurativa/cirurgia , Estudos Retrospectivos
18.
BMC Rheumatol ; 6(1): 80, 2022 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-36243873

RESUMO

BACKGROUND: For many children and young people (CYP) with paediatric rheumatic conditions, glucocorticoid medications and their associated side-effects have a substantial impact on disease experience. Whilst there are physician-rated measures of glucocorticoid toxicity, no parallel patient reported measure has been developed to date for CYP with rheumatic disease. This manuscript describes a series of public patient involvement (PPI) events to inform the development of a future paediatric glucocorticoid-associated patient reported outcome measure (PROM). METHODS: One large group PPI event was advertised to CYP with experience of glucocorticoid medication use and their parents through clinicians, charities and existing PPI groups. This featured education on the team's research into glucocorticoid medication and interactive polls/structured discussion to help participants share their experiences. Further engagement was sought for PPI group work to co-develop future glucocorticoid studies, including development of a glucocorticoid associated PROM. Quantitative and qualitative feedback was collected from online questionnaires. The initiative was held virtually due to the Covid-19 pandemic. RESULTS: Nine families (n = 15) including 6 CYP joined the large group PPI event. Online pre-attendance and post-attendance questionnaires showed improvement in mean self-reported confidence [1 = not at all confident, 5 = very confident] in the following: what steroid medications are (pre = 3.9, post = 4.8), steroid side effects (pre = 3.8, post = 4.6), patient-reported outcome measures (pre = 2.0, post = 4.5), available research on steroids (pre = 2.2, post = 3.5). Five families (n = 7) were involved in a monthly PPI group who worked alongside the research team to identify priorities in glucocorticoid research, produce age-appropriate study materials, identify barriers to study participation (e.g. accessibility & convenience) and recommend appropriate modalities for dissemination. The participants found discussing shared experiences and learning about research to be the most enjoyable aspects of the initiative. CONCLUSIONS: This PPI initiative provided a valuable forum for families, including young children, to share their perspectives. Here, the authors explore the effective use of PPI in a virtual setting and provide a unique case study for the involvement of CYP in PROM development. The monthly PPI group also identified a need for the development of a new PROM related to glucocorticoid medication use and provided unique insights into how such a study could be structured.

19.
Clin Oncol (R Coll Radiol) ; 34(7): 442-451, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35123850

RESUMO

AIMS: We implemented magnetic resonance imaging-based image-guided adaptive brachytherapy (IGABT) for the management of cervical cancer at the Northern Centre for Cancer Care in January 2015. The Royal College of Radiologists recommended IGABT as the new standard of care for the management of cervical cancer in the UK in 2009, following earlier publication of recommendations of Groupe European de Curietherapie of the European Society for Radiotherapy and Oncology for three-dimensional magnetic resonance imaging-based IGABT. The purpose of this study was to investigate if the introduction of IGABT in the management of cervical cancer at our institute indeed improved the treatment outcomes with a better toxicity profile as compared with conventional brachytherapy (CBT). PATIENTS AND METHODS: A retrospective analysis of 213 patients with International Federation of Gynecology and Obstetrics stage IB-IVA cervical cancer treated with curative radiotherapy ± chemotherapy at the Northern Centre for Cancer Care was carried out for the period January 2010 to December 2019. Patients were categorised into three groups based on their brachytherapy planning process. Fifty-eight patients were treated with CBT, 35 patients were treated with retrospective brachytherapy (RBT) planning and 120 patients were treated with IGABT. Eighty-six per cent received concomitant chemotherapy with cisplatin. Outcome measures were local control rates, overall and progression-free survival, and impact on treatment-related toxicities. RESULTS: The median follow-up was 36, 32 and 25 months for CBT, RBT and IGABT, respectively. Three-year local control achieved was 70.4, 77.8 and 86.9%, respectively. Three-year overall survival was 53.8, 61.1 and 86.2%, respectively. Grade 2 or 3 bladder and bowel toxicity was 8% and 10% in IGABT group versus 20% and 27% in the CBT group. CONCLUSION: Our analysis indicated that IGABT proved to be very effective in not only improving locoregional control, but also offered quality survivorship to these women, with a significant drop in radiation-related bladder and bowel toxicities.


Assuntos
Braquiterapia , Radioterapia Guiada por Imagem , Neoplasias do Colo do Útero , Braquiterapia/métodos , Feminino , Humanos , Imageamento por Ressonância Magnética , Estadiamento de Neoplasias , Dosagem Radioterapêutica , Radioterapia Guiada por Imagem/métodos , Estudos Retrospectivos , Resultado do Tratamento , Neoplasias do Colo do Útero/diagnóstico por imagem , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/radioterapia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA