Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 118
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Neurol Sci ; 44(7): 2561-2574, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37222872

RESUMO

BACKGROUND: The role of central and/or peripheral nervous system dysfunction is basically fundamental in fibromyalgia. AIM: The aim of this position statement on behalf of the Neuropathic Pain Study Group of the Italian Society of Neurology is to give practical guidelines for the clinical and instrumental assessment of fibromyalgia (FM) in the neurological clinical practice, taking into consideration recent studies. METHODS: Criteria for study selection and consideration were original studies, case-controls design, use of standardized methodologies for clinical practice, and FM diagnosis with ACR criteria (2010, 2011, 2016). RESULTS: ACR criteria were revised. For diagnostic procedure of small-fiber pathology, 47 studies were totally considered. Recent diagnostic criteria should be applied (ACR, 2016). A rheumatologic visit seems mandatory. The involvement of small fibers should request at least 2 among HRV + SSR and/or laser-evoked responses and/or skin biopsy and/or corneal confocal microscopy, eventually followed by monitoring of metabolic and/or immunological/ and or/paraneoplastic basis, to be repeated at 1-year follow-up. CONCLUSIONS: The correct diagnostic approach to FM could promote the exclusion of the known causes of small-fiber impairment. The research toward common genetic factors would be useful to promote a more specific therapeutic approach.


Assuntos
Fibromialgia , Neuralgia , Neurologia , Humanos , Fibromialgia/diagnóstico , Neuralgia/diagnóstico , Pele , Sistema Nervoso Periférico/patologia
2.
Eur J Neurol ; 27(4): 633-643, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31814224

RESUMO

BACKGROUND AND PURPOSE: Autoimmune encephalitides (AE) include a spectrum of neurological disorders whose diagnosis revolves around the detection of neuronal antibodies (Abs). Consensus-based diagnostic criteria (AE-DC) allow clinic-serological subgrouping of AE, with unclear prognostic implications. The impact of AE-DC on patients' management was studied, focusing on the subgroup of Ab-negative-AE. METHODS: This was a retrospective multicenter study on patients fulfilling AE-DC. All patients underwent Ab testing with commercial cell-based assays (CBAs) and, when available, in-house assays (immunohistochemistry, live/fixed CBAs, neuronal cultures) that contributed to defining final categories. Patients were classified as Ab-positive-AE [N-methyl-d-aspartate-receptor encephalitis (NMDAR-E), Ab-positive limbic encephalitis (LE), definite-AE] or Ab-negative-AE (Ab-negative-LE, probable-AE, possible-AE). RESULTS: Commercial CBAs detected neuronal Abs in 70/118 (59.3%) patients. Testing 37/48 Ab-negative cases, in-house assays identified Abs in 11 patients (29.7%). A hundred and eighteen patients fulfilled the AE-DC, 81 (68.6%) with Ab-positive-AE (Ab-positive-LE, 40; NMDAR-E, 32; definite-AE, nine) and 37 (31.4%) with Ab-negative-AE (Ab-negative-LE, 17; probable/possible-AE, 20). Clinical phenotypes were similar in Ab-positive-LE versus Ab-negative-LE. Twenty-four/118 (20.3%) patients had tumors, and 19/118 (16.1%) relapsed, regardless of being Ab-positive or Ab-negative. Ab-positive-AE patients were treated earlier than Ab-negative-AE patients (P = 0.045), responded more frequently to treatments (92.3% vs. 65.6%, P < 0.001) and received second-line therapies more often (33.3% vs. 10.8%, P = 0.01). Delays in first-line therapy initiation were associated with poor response (P = 0.022; odds ratio 1.02; confidence interval 1.00-1.04). CONCLUSIONS: In-house diagnostics improved Ab detection allowing better patient management but was available in a patient subgroup only, implying possible Ab-positive-AE underestimation. Notwithstanding this limitation, our findings suggest that Ab-negative-AE and Ab-positive-AE patients share similar oncological profiles, warranting appropriate tumor screening. Ab-negative-AE patients risk worse responses due to delayed and less aggressive treatments.


Assuntos
Encefalite/diagnóstico , Doença de Hashimoto/diagnóstico , Neurônios/imunologia , Fenótipo , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Encefalite/imunologia , Feminino , Doença de Hashimoto/imunologia , Humanos , Imuno-Histoquímica , Lactente , Masculino , Pessoa de Meia-Idade , Receptores de N-Metil-D-Aspartato/imunologia , Estudos Retrospectivos , Adulto Jovem
3.
Neurol Sci ; 40(7): 1425-1431, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30941628

RESUMO

To improve patient care and help clinical research, the Neuropathic Pain Special Interest Group of the Italian Neurological Society appointed a task force to elaborate a consensus statement on pharmacoresistant neuropathic pain. The task force included 19 experts in neuropathic pain. These experts participated in a Delphi survey consisting of three consecutive rounds of questions and a face-to-face meeting, designed to achieve a consensus definition of pharmacoresistant neuropathic pain. In the three rounds of questions, the participants identified and described the main distinguishing features of pharmacoresistance. In the face-to-face meeting the participants discussed the clinical features determining pharmacoresistance. They finally agreed that neuropathic pain is pharmacoresistant when "the patient does not reach the 50% reduction of pain or an improvement of at least 2 points in the Patient Global Impression of Change, having used all drug classes indicated as first, second, or third line in the most recent and widely agreed international guidelines, for at least 1 month after titration to the highest tolerable dose." Our consensus statement might be useful for identifying eligible patients for invasive treatments, and selecting patients in pharmacological trials, thus improving patient care and helping clinical research.


Assuntos
Neuralgia/classificação , Dor Intratável/classificação , Técnica Delphi , Resistência a Medicamentos , Humanos , Neuralgia/diagnóstico , Neuralgia/terapia , Dor Intratável/diagnóstico , Dor Intratável/terapia
4.
Eur J Neurol ; 21(12): 1478-e97, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25041520

RESUMO

BACKGROUND AND PURPOSE: Alternating hemiplegia of childhood (AHC) is a rare neurological disease characterized by recurrent paroxysmal attacks of hemiplegia. The aim of the study was to assess the recovery cycle of the somatosensory evoked potentials (SEPs) in a group of AHC patients. METHODS: Seven AHC patients and 10 control age-matched subjects (CS) were recruited. Right and left median nerve SEPs were recorded. The somatosensory system excitability was assessed by calculating the SEP changes after paired electrical stimuli. All patients were studied during the interictal phase, whilst four patients were studied also during the ictal phase. RESULTS: In AHC patients during the interictal phase, the amplitudes of the cervical N13 and of the cortical N20, P24 and N30 responses showed a faster recovery than in CS. In AHC patients during the ictal phase, the cortical N20 recovery cycle was prolonged compared with the interictal phase. CONCLUSIONS: A shortened SEP recovery cycle in AHC during the interictal phase suggests multilevel somatosensory system hyperexcitability in AHC. A partial recovery of this phenomenon during the ictal phase possibly reflects a functional reset of the somatosensory system. Overall, there is a disinhibition of the somatosensory system in AHC, a functional change of brain function associated with a possible involvement of the Na(+) /K(+) channels. This abnormality and its partial recovery during the attacks might be linked to the pathophysiological and genetic mechanisms of the disease.


Assuntos
Potenciais Somatossensoriais Evocados/fisiologia , Hemiplegia/fisiopatologia , Nervo Mediano/fisiopatologia , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Adulto Jovem
5.
Eur J Gynaecol Oncol ; 34(5): 487-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24475591

RESUMO

Adenoid cystic carcinoma (ACC) of Bartholin's gland is an extremely rare tumor of the female genital tract, representing about 5%-15% of Bartholin's gland malignancies. Approximately 80 cases have been reported in the literature. The authors describe the case of a 54-year-old woman with locally advanced ACC of Bartholin's gland treated with surgery and adjuvant radiotherapy (RT). She underwent radical hemivulvectomy associated with ipsilateral inguinal and femoral lymph node dissection. Subsequently, she received postoperative three-dimensional conformal RT. Total dose prescribed was 56 Gy in 28 fractions of two Gy each. After 20 months of follow up, there was no evidence of local failure or distant progression.


Assuntos
Glândulas Vestibulares Maiores/patologia , Carcinoma Adenoide Cístico/radioterapia , Neoplasias Vulvares/radioterapia , Carcinoma Adenoide Cístico/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Radioterapia Adjuvante , Neoplasias Vulvares/patologia
6.
Radiol Med ; 118(2): 311-22, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22580814

RESUMO

PURPOSE: The objectives of this study were to evaluate local disease control, overall survival (OS), disease-free survival (DFS) and local relapse-free survival (LRFS) in patients with endometrial cancer undergoing adjuvant vaginal brachytherapy (VBT )± external-beam radiotherapy (EBRT). MATERIALS AND METHODS: From September 2007 to February 2011, 40 patients with endometrial cancer were retrospectively analysed. Surgery consisted of total hysterectomy and bilateral salpingo-oophorectomy without node dissection (16 patients) or with bilateral pelvic node dissection (24 patients). The stage distribution was as follows: two IA, nine IB, 12 IC, five IIA, eight IIB, two IIIA and two IIIC. Thirty-four patients underwent EBRT and VBT. Six patients received VBT alone. RESULTS: Median follow-up was 26 months. The 5-year OS and DFS were 96.4% and 86.9%, respectively. No local recurrence was observed. Four patients presented distant disease (three had lung metastases and one had hepatic node metastases). Acute EBRT-related toxicities were seen in 15 (38%) patients. We recorded late toxicities in 14 patients (35%). There was no evidence of grade 3-4 toxicity. CONCLUSIONS: Adjuvant EBRT and/or VBT in patients with endometrial cancer showed good outcomes in terms of local disease control, with an acceptable toxicity profile.


Assuntos
Braquiterapia/métodos , Neoplasias do Endométrio/radioterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Braquiterapia/efeitos adversos , Quimioterapia Adjuvante , Terapia Combinada , Neoplasias do Endométrio/patologia , Neoplasias do Endométrio/cirurgia , Feminino , Humanos , Histerectomia , Metástase Linfática , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Ovariectomia , Modelos de Riscos Proporcionais , Planejamento da Radioterapia Assistida por Computador , Estudos Retrospectivos , Salpingectomia , Taxa de Sobrevida , Resultado do Tratamento
7.
Placenta ; 131: 58-64, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36493624

RESUMO

INTRODUCTION: placental anomalies can affect fetal and maternal outcome due to severe maternal hemorrhage potentially resulting in hysterectomy and cord accident including abruption that can determine fetal damage or death. The aims of our study are to determine if the rate of placental and umbilical cord anomalies are more common in IVF singleton pregnancies compared to spontaneous pregnancies; to evaluate the role of ultrasound in screening for these anomalies and to investigate if oocyte donor fertilization is an additional risk factor for the development of these anomalies. METHODS: this was a prospective cohort study involving two tertiary centers. Patients with a singleton pregnancy conceived with IVF and patients presenting with a spontaneous conception were recruited between 1st May 2019 to 31st March 2021. A total of 634 pregnancies were enrolled in the study. All patients underwent similar antenatal care, which included ultrasound examinations at 11-14, 19-22 and 33-35 weeks. Ultrasound findings of placental and/or umbilical cord abnormalities were recorded using the same protocol for both groups and confirmed after birth. RESULTS: IVF pregnancies had a significantly higher risk of low-lying placenta, placenta previa, bilobed placenta and velamentous cord insertion (VCI) compared with spontaneous pregnancies. In the heterologous subgroup there was a significant increased incidence of placenta accreta spectrum (PAS) disorders than in spontaneous pregnancies. All these anomalies were identified prenatally on ultrasound imaging and confirmed at birth. DISCUSSION: IVF pregnancies in general and those resulting from donor oocyte in particular are at higher risk of placental and umbilical cord abnormalities compared to spontaneous pregnancies. These anomalies can be diagnosed accurately at the mid-trimester detailed fetal anomaly scan and our findings support the need for a targeted ultrasound screening of these anomalies in IVF pregnancies.


Assuntos
Placenta Prévia , Placenta , Humanos , Gravidez , Feminino , Placenta/diagnóstico por imagem , Placenta/anormalidades , Cordão Umbilical/diagnóstico por imagem , Cordão Umbilical/anormalidades , Estudos Prospectivos , Fertilização in vitro/efeitos adversos , Ultrassonografia , Fertilização , Estudos Retrospectivos
9.
Radiol Med ; 117(1): 125-32, 2012 Feb.
Artigo em Inglês, Italiano | MEDLINE | ID: mdl-21892718

RESUMO

PURPOSE: The authors report acute toxicity in 14 patients with locally advanced head and neck squamous cell carcinoma treated with radiotherapy and cetuximab. MATERIALS AND METHODS: Data collection was performed prospectively on patients treated from September 2007 to March 2009. Treatment consisted of 64.8-70 Gy radiotherapy in conventional fractions and cetuximab. RESULTS: Two out of 14 patients did not complete the planned combined treatment; radiotherapy was temporarily suspended in six other patients. Seven of 12 patients received cetuximab until the end of radiotherapy. Treatment breaks were principally due to severe acute cutaneous or mucous toxicity. Any grade acneiform rash occurred in all patients. In-field G3-4 cutaneous toxicity occurred in five (36%) patients and G3-4 mucous toxicity in seven (50%). One patient died of sepsis. CONCLUSIONS: In our experience, severe acute toxic reactions are common in patients treated with radiotherapy and concurrent cetuximab, resulting in frequent breaks or incomplete treatment with potential reduction in disease control.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Antineoplásicos/efeitos adversos , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/radioterapia , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Neoplasias de Cabeça e Pescoço/radioterapia , Radiodermite/epidemiologia , Adulto , Idoso , Anticorpos Monoclonais Humanizados , Cetuximab , Terapia Combinada , Relação Dose-Resposta à Radiação , Feminino , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Taxa de Sobrevida , Resultado do Tratamento
10.
Eur J Neurol ; 18(7): 952-61, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21087361

RESUMO

BACKGROUND: We describe a group of previously normal children who developed severe focal epilepsy after an acute/sub-acute illness resembling encephalitis. METHODS: This is a retrospective study. An acute phase (encephalitis/encephalopathy period) and a chronic phase (chronic focal resistant epilepsy) were defined. RESULTS: Eight patients were enrolled. The median age at onset was 6.6 years (range 8 months-17.6 years). In the acute phase, fever was the first symptom in all cases and was associated with seizures and status epilepticus. All patients had focal seizures arising in both hemispheres. Seizure onset occurred in the frontal and temporal regions. EEGs showed slowing background activity associated with focal or diffuse slow waves with rare epileptiform abnormalities. Cerebrospinal fluid oligoclonal bands were observed in four out of six patients tested. MRI images showed bilateral peri-insular hyperintensity in four cases. Five patients received corticosteroids, and in four cases, they were given along with intravenous immunoglobulins. The median duration of the acute phase was 19 days (range 15-30 days). During the chronic phase, which followed the acute phase without interval, patients presented with drug-resistant focal seizures and neuropsychological deficits, which ranged from hyperactivity and attention deficits to short-term verbal memory deficit, pervasive developmental disorders, and language delay. CONCLUSION: Considering the clinical presentations, EEG findings, and the associated occurrence of non-specific immunological activations, a possible immune-mediated pathogenesis can be hypothesized, although firm conclusions cannot be drawn out.


Assuntos
Encefalite/complicações , Epilepsias Parciais/etiologia , Epilepsias Parciais/fisiopatologia , Febre/complicações , Adolescente , Criança , Pré-Escolar , Eletroencefalografia , Encefalite/patologia , Epilepsias Parciais/tratamento farmacológico , Humanos , Imunoglobulinas Intravenosas/uso terapêutico , Lactente , Imageamento por Ressonância Magnética , Testes Neuropsicológicos , Estudos Retrospectivos
11.
Eur J Paediatr Neurol ; 30: 9-16, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33321446

RESUMO

BACKGROUNDS: To investigate the clinical and instrumental features at the onset addressing to the diagnosis of anti-NMDAR encephalitis. METHODS: Twenty children (age: 15 months-17 years; 7 males, 13 females) with initial suspected diagnosis of autoimmune encephalitis, observed between January 2008 and March 2018, were included. The final diagnosis was anti-NMDAR encephalitis in 7 children, other/probable autoimmune encephalitis in 7 children, and primary psychosis in the remaining 6 children. RESULTS: At the clinical onset, anxiety disorder was the main symptom that helped in distinguishing the group of psychotic children from children with non-infectious encephalitis (P = 0.05 OR = 0.001), while epileptic seizures strongly predicted anti-NMDAR encephalitis (P = 0.04 OR = 28.6). At the onset, anti-NMDAR encephalitis could be distinguished from other/probable autoimmune encephalitis for the presence of sleep/wake rhythm alteration (P = 0.05 OR = 15). Among the symptoms occurring during the hospitalization, movement disorders (P = 0.031 OR = 12) were predictive of non-infectious encephalitis rather than primary psychosis. More specifically, the occurrence of language impairment (P = 0.03 OR = 33), epileptic seizures (P = 0.04 OR = 28.6) and catatonia (P = 0.03, OR = 33), were predictive of anti-NMDAR encephalitis. Also at this stage, anxiety disorder (P = 0.03 OR = 0.033) was predictive of primary psychosis. CONCLUSION: Our findings suggest that at the clinical onset epileptic seizures and sleep/wake rhythm alteration represent the main features addressing to the diagnosis of anti-NMDAR encephalitis rather than primary psychosis and other/probable autoimmune encephalitis, while anxiety disorder could be a solid predictor of primary psychosis.


Assuntos
Encefalite Antirreceptor de N-Metil-D-Aspartato/diagnóstico , Adolescente , Encefalite Antirreceptor de N-Metil-D-Aspartato/complicações , Catatonia/etiologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Transtornos dos Movimentos/etiologia , Transtornos Psicóticos/etiologia , Convulsões/etiologia
12.
Clin Transl Oncol ; 23(10): 2133-2140, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33840047

RESUMO

OBJECTIVES: Stereotactic body radiotherapy (SBRT) is a consolidate treatment for inoperable early-stage lung tumors, usually delivered in single or multi-fraction regimens. We aimed to compare these two approaches in terms of local effectiveness, safety and survival. MATERIALS AND METHODS: Patients affected by medically inoperable early-stage lung tumor were treated at two Institutions with two different schedules: 70 Gy in ten fractions (TF) (BED10: 119 Gy) or 30 Gy in single fraction (SF) (BED10: 120 Gy). RESULTS: 73 patients were treated with SBRT delivered with two biological equivalent schedules: SF (44) and TF (29). The median follow-up was 34 months (range 3-81 months). Three-year Overall survival (OS) was 57.9%, 3-year cancer-specific survival (CSS) was 77.2%, with no difference between treatment groups. Three-year progression-free survival (LPFS) was 88.9% and did not differs between SF and TF. Overall, four cases (5.4%) of acute grade ≥ 3 pneumonitis occurred. No differences in acute and late toxicity between the two groups were detected. CONCLUSION: SF and TF seems to be equally safe and effective in the treatment of primary inoperable lung tumors especially for smaller lesion. The SF may be preferentially offered to reduce patient access to hospital with no negative impact on tumor control and survival.


Assuntos
Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/radioterapia , Radiocirurgia/métodos , Idoso , Idoso de 80 Anos ou mais , Fracionamento da Dose de Radiação , Esofagite/epidemiologia , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Intervalo Livre de Progressão , Pneumonite por Radiação/epidemiologia , Radiocirurgia/efeitos adversos , Radiocirurgia/mortalidade , Dosagem Radioterapêutica , Fatores de Tempo , Carga Tumoral
13.
Clin Transl Oncol ; 23(8): 1577-1584, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33495981

RESUMO

OBJECTIVES: To report outcomes of stereotactic body radiotherapy (SBRT) in metastatic castration-resistant prostate cancer (mCRPC) patients with oligoprogression (≤ 5 metastases) during first-line treatment with androgen receptor-targeted therapy (ARTT). PATIENTS AND METHODS: Retrospective multi-institutional analysis of mCRPC patients treated with SBRT to oligoprogressive lesions during ARTT. End-points were time to next-line systemic treatment (NEST), radiological progression-free survival (r-PFS) and overall survival (OS). Toxicity was registered according to Common Terminology Criteria for Adverse Events (CTCAE) v4.0. Survival analysis was performed using the Kaplan-Meier method, univariate and multivariate analysis (MVA) were performed. RESULTS: Data from 34 patients were analyzed. Median NEST-free survival, r-PFS, and OS were 16.97, 13.47, and 38.3 months, respectively. At MVA, factors associated with worse NEST-free survival and r-PFS were polymetastatic burden at diagnosis of metastatic hormone-sensitive disease (hazard ratio [HR] 3.66, p = 0.009; HR 3.03, p = 0.034), PSA ≤ 7 ng/ml at mCRPC diagnosis (HR 0.23, p = 0.017; HR 0.19, p = 0.006) and PSADT ≤ 3 months at mCRPC diagnosis (HR 3.39, p = 0.026; HR 2.79, p = 0.037). Polymetastatic state at mHSPC diagnosis was associated with a decreased OS (HR 4.68, p = 0.029). No patient developed acute or late grade ≥ 2 toxicity. CONCLUSION: Our results suggest that SBRT in oligoprogressive mCPRC is safe, effective and seems to prolong the efficacy of the ongoing systemic treatment positively affecting disease progression. Prospective trials are needed.


Assuntos
Antagonistas de Receptores de Andrógenos/uso terapêutico , Terapia de Alvo Molecular/métodos , Neoplasias de Próstata Resistentes à Castração/tratamento farmacológico , Neoplasias de Próstata Resistentes à Castração/radioterapia , Radiocirurgia/métodos , Idoso , Análise de Variância , Terapia Combinada/métodos , Progressão da Doença , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Intervalo Livre de Progressão , Neoplasias de Próstata Resistentes à Castração/mortalidade , Neoplasias de Próstata Resistentes à Castração/patologia , Dosagem Radioterapêutica , Estudos Retrospectivos , Resultado do Tratamento
14.
Sci Rep ; 11(1): 20838, 2021 10 21.
Artigo em Inglês | MEDLINE | ID: mdl-34675309

RESUMO

The N13 component of somatosensory evoked potential (N13 SEP) represents the segmental response of dorsal horn neurons. In this neurophysiological study, we aimed to verify whether N13 SEP might reflect excitability changes of dorsal horn neurons during central sensitization. In 22 healthy participants, we investigated how central sensitization induced by application of topical capsaicin to the ulnar nerve territory of the hand dorsum modulated N13 SEP elicited by ulnar nerve stimulation. Using a double-blind placebo-controlled crossover design, we also tested whether pregabalin, an analgesic drug with proven efficacy on the dorsal horn, influenced capsaicin-induced N13 SEP modulation. Topical application of capsaicin produced an area of secondary mechanical hyperalgesia, a sign of central sensitization, and increased the N13 SEP amplitude but not the peripheral N9 nor the cortical N20-P25 amplitude. This increase in N13 SEP amplitude paralleled the mechanical hyperalgesia and persisted for 120 min. Pregabalin prevented the N13 SEP modulation associated with capsaicin-induced central sensitization, whereas capsaicin application still increased N13 SEP amplitude in the placebo treatment session. Our neurophysiological study showed that capsaicin application specifically modulates N13 SEP and that this modulation is prevented by pregabalin, thus suggesting that N13 SEP may reflect changes in dorsal horn excitability and represent a useful biomarker of central sensitization in human studies.


Assuntos
Sensibilização do Sistema Nervoso Central , Potenciais Somatossensoriais Evocados , Adulto , Capsaicina/efeitos adversos , Sensibilização do Sistema Nervoso Central/efeitos dos fármacos , Método Duplo-Cego , Potenciais Somatossensoriais Evocados/efeitos dos fármacos , Feminino , Humanos , Hiperalgesia/induzido quimicamente , Hiperalgesia/fisiopatologia , Masculino , Fármacos do Sistema Sensorial/efeitos adversos , Adulto Jovem
15.
Clin Breast Cancer ; 21(3): e141-e149, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33012660

RESUMO

PURPOSE: To evaluate, in a series of early breast cancer (BC) patients treated with hypofractionated adjuvant radiotherapy (RT), whether N-terminal-pro hormone B-type natriuretic peptide (NT-proBNP) and high-sensitivity cardiac troponin I assay measurements can predict acute clinical or preclinical cardiotoxicity. PATIENTS AND METHODS: The study comprised 44 consecutive patients, who underwent conservative surgery with or without (neo)adjuvant chemotherapy and hypofractionated adjuvant RT. The RT schedule consisted in a total dose of 42.4 Gy in 16 fractions administered 5 days per week. Twenty-one patients received a subsequent boost to the tumor bed consisting of a total dose of 10 Gy in 4 fractions delivered via a direct electron field. All patients underwent 12-lead electrocardiogram, echocardiogram, and cardiac clinical examinations before RT to assess cardiovascular risk factors; these examinations were repeated yearly for 5 consecutive years. High-sensitivity cardiac troponin I and NT-proBNP were analyzed from serum samples at baseline, after delivery of the fourth and 16th RT fractions, and 12 months after treatment completion. RESULTS: No increase in cardiac troponin I and B-type natriuretic peptide levels related to left breast irradiation was observed. No statistical difference in NT-proBNP and high-sensitivity troponin I levels between left- and right-sided BC was found. An increase was observed of B-type natriuretic peptide levels at baseline, during treatment, and until 12 months after RT related to hypertension, with the P value near to the .05 threshold for age and chemotherapy. CONCLUSION: Conformational hypofractionated RT in left-sided BC may not cause acute myocardial damage. Early cardiac screening may be used to identify patients with cardiologic risk factors, patients who are older than 60 years, and patients who received chemotherapy that could result in clinically relevant cardiac pathologies.


Assuntos
Quimioterapia Adjuvante/efeitos adversos , Peptídeo Natriurético Encefálico/sangue , Fragmentos de Peptídeos/sangue , Hipofracionamento da Dose de Radiação , Neoplasias Unilaterais da Mama/radioterapia , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Biomarcadores/sangue , Cardiotoxicidade , Feminino , Coração/efeitos da radiação , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Neoplasias Unilaterais da Mama/sangue , Neoplasias Unilaterais da Mama/patologia
16.
Cephalalgia ; 30(1): 17-26, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19489886

RESUMO

The aim of this study was to compare the recovery cycle of somatosensory evoked potentials (SEPs) in children with migraine without aura before and after treatment with topiramate. Eleven migraine children were studied before and after a 3-month treatment with topiramate at the average dose of 1.3 mg/kg/day. We calculated the SEP latency and amplitude modifications after paired electrical stimuli at 5, 20 and 40 ms interstimulus intervals, comparing them with a single stimulus condition assumed as baseline. In nine patients, who had a significant reduction in headache frequency after treatment, the recovery cycles of the P24 (P = 0.03) and N30 (P < 0.005) potentials were longer after than before topiramate treatment. In two migraineurs who did not show any improvement, the recovery cycles of the cortical SEP components were even shorter after treatment. Our results suggest that topiramate efficacy in paediatric migraine prophylaxis is probably related to restored cortical excitability.


Assuntos
Anticonvulsivantes/administração & dosagem , Potenciais Somatossensoriais Evocados/efeitos dos fármacos , Frutose/análogos & derivados , Enxaqueca sem Aura/tratamento farmacológico , Córtex Somatossensorial/efeitos dos fármacos , Adolescente , Criança , Estimulação Elétrica , Potenciais Somatossensoriais Evocados/fisiologia , Feminino , Frutose/administração & dosagem , Humanos , Masculino , Enxaqueca sem Aura/fisiopatologia , Tempo de Reação/efeitos dos fármacos , Tempo de Reação/fisiologia , Córtex Somatossensorial/fisiologia , Topiramato
17.
Acta Chir Plast ; 52(2-4): 35-8, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21749008

RESUMO

AIM: The authors describe and validate a new technique of one-session, multiple-pass, low spot density, fractional ablative CO2 resurfacing in order to treat lower eyelid skin laxity and photoaging. METHODS: The investigation was conducted on 25 patients. The YouLaser CO2 (Quanta System s.p.a., Italy), a 10600-nm CO2 ablative fractional laser system, was used to treat the lower eyelids at a pulse energy of 25 to 35 J, with a pulse duration of 1 ms, 200 microm spot size and a density of 100 laser spots/cm2 for every passage. Each patient had 1 session only, and 1 to 3 passes per area, after application of topical anesthesia. Two blinded physicians assessed eyelid tightening from photographs of 25 patients using a 4-point evaluation scale (1 = 1-25%, 2 = 26-50%, 3 = 51-75%, and 4 = 76-100%. The grades of the 2 evaluating physicians were analyzed using t-test and Kruskal-Wallis analysis of variance. The same evaluation scale was used to assess patient satisfaction in a questionnaire. RESULTS: The median grades of the 2 physicians for all patients did not differ significantly (p = .88) from one another, and the Kruskal-Wallis assessment (p = 0.0011) indicated unbiased grading among the physicians. All patients achieved a degree of eyelid tightening; 8% achieved 1% to 25% improvement, 24% achieved 25% to 50%, 40% achieved 50% to 75%, and 28% achieved 75% to 100%. Results of patient questionnaires were similar to that of the physicians' evaluation: 4% achieved 1% to 25% improvement, 28% achieved 25% to 50%, 48% achieved 50% to 75%, and 20% achieved 75% to 100%. CONCLUSIONS: The fractioned form of CO2 laser delivery offers very good results with short downtime and easy patient recuperation. The new technique allowed the operator to control skin contraction immediately after laser skin exposure. Using high energy and lower laser spot density permits a control of the amount of contraction simply by the number of passes. Increasing this variable progressively increased skin damage and consequently the contraction.


Assuntos
Lasers de Gás/uso terapêutico , Adulto , Blefaroplastia , Estudos de Coortes , Pálpebras , Feminino , Humanos , Terapia a Laser , Pessoa de Meia-Idade , Envelhecimento da Pele , Resultado do Tratamento
18.
Sci Rep ; 10(1): 17471, 2020 10 15.
Artigo em Inglês | MEDLINE | ID: mdl-33060732

RESUMO

The aim of this observational study is to investigate whether local consolidative treatment delivered to the primary site and metastatic tumour burden may add survival benefit to de novo oligometastatic prostate cancer (Oligo-PCa) patients. We retrospectively reviewed all Oligo-PCa patients treated with radiotherapy to the primary tumor sites and metastatic tumor burden at our institution between March 2010 and June 2019. All patients having ≤ 5 metastases involving nodes and/or bones, loco-regional and/or extra-pelvic sites, were included. Most of the patients had started androgen deprivation therapy with or without docetaxel as standard of care before radiotherapy. The Kaplan Meier analysis was performed to estimate survival outcomes. The univariate analysis tested possible prognostic factors increasing the rate of biochemical relapse. We analysed 37 Oligo-PCa patients. Twenty-eight (75.7%) had loco-regional metastases, in 9 patients (24.3%) the metastatic tumour burden was extra-pelvic. Nineteen (51.4%) had bone metastases, 21 (56.8%) nodal involvement and 7 (18.9%) both. Twenty (54.1%) had a single metastasis. The median follow-up was 55.5 months. The median overall survival (OS) was 68.8 months, the 2- and 5-year OS rates were 96.9% and 65.4%. The median biochemical relapse free survival (b-RFS) was 58 months and the 2- and 5-year b-RFS rates were 73.3% and 39.3%. The 2- and 5-year local relapse free survival rates were 93.9% and 83.7%. On the univariate analysis post-treatment PSA level ≤ 1 ng/ml was significantly related with the b-RFS (p = 0.004). Curative approach in Oligo-PCa patients involving both the primary tumor and metastatic sites may be feasible and well tolerate. Many patients presented longer survival and PSA at first follow-up was the most important prognostic factor. Further trials are needed to confirm our results and to evaluate if patients with PSA at first follow-up > 1 ng/ml may benefit from further treatments.


Assuntos
Metástase Neoplásica , Neoplasias da Próstata/radioterapia , Radioterapia/métodos , Idoso , Idoso de 80 Anos ou mais , Antagonistas de Androgênios/uso terapêutico , Neoplasias Ósseas/secundário , Intervalo Livre de Doença , Docetaxel/uso terapêutico , Seguimentos , Humanos , Estimativa de Kaplan-Meier , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Prognóstico , Antígeno Prostático Específico/metabolismo , Prostatectomia , Neoplasias da Próstata/metabolismo , Neoplasias da Próstata/cirurgia , Recidiva , Estudos Retrospectivos , Carga Tumoral
19.
Cephalalgia ; 29(2): 204-13, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18823365

RESUMO

We investigated a possible correlation between brain excitability in children with migraine and tension-type headache (TTH) and their behavioural symptomatology, assessed by using the Child Behaviour Checklist (CBCL). The mismatch negativity (MMN) and P300 response were recorded in three successive blocks to test the amplitude reduction of each response from the first to the third block (habituation). MMN and P300 habituation was significantly lower in migraineurs and TTH children than in control subjects (two-way ANOVA: P < 0.05). In migraineurs, but not in TTH patients, significant positive correlations between the P300 habituation deficit and the CBCL scores were found (P < 0.05), meaning that the migraineurs with the most reduced habituation showed also the worst behavioural symptomatology. To the best of our knowledge, this is the first study showing a correlation between neurophysiological abnormality and emotional symptomatology in migraine, suggesting a role of the latter in producing the migrainous phenotype.


Assuntos
Comportamento do Adolescente , Encéfalo/fisiopatologia , Comportamento Infantil , Emoções , Enxaqueca sem Aura/fisiopatologia , Cefaleia do Tipo Tensional/fisiopatologia , Adolescente , Análise de Variância , Ansiedade , Criança , Eletroencefalografia , Potenciais Evocados , Feminino , Humanos , Masculino , Enxaqueca sem Aura/psicologia , Testes Neuropsicológicos , Cefaleia do Tipo Tensional/psicologia
20.
Neurosci Lett ; 432(3): 179-83, 2008 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-18226449

RESUMO

To analyse short and long-latency (SEPs) recorded by chronically stereotactically electrodes implanted in SI area of two epileptic patients. Two drug-resistant epileptic patients (2 females, 38 and 15 years, respectively) suffering from left temporal and right frontal epilepsy respectively, were investigated by an electrode-chronically implanted in SI area. Short and long latency somatosensory evoked potentials were recorded by depth electrodes 10 days after implantation. This is the first study to describe a depth N36 response by an intracerebral recording electrode in the SI area, probably generated by a radially oriented generator, located in area 1. Furthermore, we confirmed a role of SI in the genesis of N60 component. Finally, our present data suggest that the SI area is still active at 120 ms after the stimulus, since in one patient (no. 2) we identified a N120 potential, reaching its maximal amplitude at the same depth as the N20 response.


Assuntos
Epilepsia/patologia , Potenciais Somatossensoriais Evocados/fisiologia , Tempo de Reação/fisiologia , Córtex Somatossensorial/fisiopatologia , Adolescente , Adulto , Estimulação Elétrica , Eletroencefalografia/métodos , Feminino , Humanos , Tempo de Reação/efeitos da radiação
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA