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1.
J Cardiovasc Dev Dis ; 11(2)2024 Feb 16.
Artigo em Inglês | MEDLINE | ID: mdl-38392277

RESUMO

Myotonic dystrophy is a hereditary disorder with systemic involvement. The Italian Neuro-Cardiology Network-"Rete delle Neurocardiologie" (INCN-RNC) is a unique collaborative experience involving neurology units combined with cardio-arrhythmology units. The INCN facilitates the creation of integrated neuro-cardiac teams in Neuromuscular Disease Centers for the management of cardiovascular involvement in the treatment of myotonic dystrophy type 1 (MD1).

2.
Pain Rep ; 8(5): e1089, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38225959

RESUMO

Introduction: Previous clinical observations raised the possibility that COVID-19 vaccination might trigger a small-fibre neuropathy. Objectives: In this uncontrolled observational study, we aimed to identify small fibre damage in patients complaining of generalized sensory symptoms and pain after COVID-19 vaccination. Methods: We collected clinical data, including a questionnaire for assessing autonomic symptoms (Composite Autonomic Symptom Score-31), and investigated quantitative sensory testing (QST) and skin biopsy in 15 prospectively enrolled patients with generalized sensory symptoms and pain after COVID-19 vaccination. Nine patients complaining of orthostatic intolerance also underwent cardiovascular autonomic tests. Results: We found that all patients experienced widespread pain, and most of them (11 of 15) had a fibromyalgia syndrome. All patients had normal skin biopsy findings, and in the 9 patients with orthostatic intolerance, cardiovascular autonomic tests showed normal findings. Nevertheless, 5 patients had cold and warm detection abnormalities at the QST investigation. Conclusions: In our study, most patients complaining of generalized sensory symptoms and pain after COVID-19 vaccination had clinical and diagnostic test findings compatible with a fibromyalgia syndrome. Although the abnormal QST findings we found in 5 patients might be compatible with a small-fibre neuropathy, they should be cautiously interpreted given the psychophysical characteristics of this diagnostic test. Further larger controlled studies are needed to define precisely the association between small fibre damage and COVID-19 vaccination.

3.
Artigo em Inglês | MEDLINE | ID: mdl-36497789

RESUMO

Digital literacy refers to a set of competencies related to the skilled use of computers and information technology. Low digital skills can be a barrier for older adults' full participation in a digital society, and COVID-19 has increased this risk of social exclusion. Older adults' digital inclusion is a complex process that consists of the interplay of structural and individual factors. The ACCESS project unwrapped the complexity of the process and developed an innovative, multilevel model that illustrates how societal, institutional, material and pedagogical aspects shape adults' appropriation of digital literacy. A holistic model describes factors contributing to older adults' digital literacy, acknowledging sociocultural contexts, environments, learning settings and instruction practices for learning digital literacy. Instead of seeing older adults' reasons for learning digital skills purely as individual choice, this model recognizes the interpersonal, institutional and societal aspects that implicitly or explicitly influence older adults' acquisition of digital literacy. The results offer a tool for stakeholders, the research community, companies, designers and other relevant stakeholders to consider digital skills and the given support. It demands diverse communication between different stakeholders about the things that should be discussed when organizing digital support in digitalized societies.


Assuntos
COVID-19 , Humanos , Idoso , COVID-19/epidemiologia , Alfabetização , Aprendizagem , Análise Multinível
4.
Europace ; 24(7): 1164-1170, 2022 07 21.
Artigo em Inglês | MEDLINE | ID: mdl-34849728

RESUMO

AIMS: Syncope without prodromes in subjects with normal heart and normal electrocardiogram (ECG) is classified as non-classical neurally mediated syncope and is characterized by low adenosine plasma levels (APLs) and frequent asystolic syncope. We assessed the efficacy of theophylline, a non-selective adenosine receptor antagonist, in preventing syncopal events. METHODS AND RESULTS: Participants received an implantable cardiac monitor, underwent APL measurement, and received oral theophylline at maximum tolerated dose (starting dose 300 mg b.i.d.). They were compared with a historical cohort of untreated patients with implantable cardiac monitor who had the same inclusion criteria and were balanced with the propensity score (PS) method as regard age, sex, lifetime syncopal episodes, APL, and antihypertensive drugs. Primary endpoint was time to first syncopal recurrence at 24 months. There were 76 patients in the theophylline group and 58 in the control group. Syncope recurred in 25 (33%) patients in the theophylline group and in 27 (47%) patients in the control group, with an estimated 2-year recurrence rate of 33% and 60%, respectively, and a hazard ratio of 0.53 [95% confidence interval (CI), 0.30-0.95; P = 0.034]. Most of the benefit of theophylline is derived from reduction of syncope due to asystolic atrioventricular (AV) block (hazard ratio of 0.13; 95% CI, 0.03-0.58; P = 0.008). Thirty (39%) patients discontinued theophylline after a median of 6.4 (interquartile range 1.7-13.8) months due to side effects. CONCLUSION: Theophylline was effective in preventing recurrences in patients with syncope without prodromes, normal heart, and normal ECG. The benefit was greater in patients with syncope due to asystolic AV block. CLINICALTRIALS.GOV IDENTIFIER: NCT03803215.


Assuntos
Bloqueio Atrioventricular , Parada Cardíaca , Síncope Vasovagal , Eletrocardiografia , Humanos , Pontuação de Propensão , Recidiva , Síncope/diagnóstico , Síncope/tratamento farmacológico , Síncope/etiologia , Teofilina/efeitos adversos
5.
Artigo em Inglês | MEDLINE | ID: mdl-34831555

RESUMO

Skills, knowledge, and awareness of digital and technological tools are essential to improve the state of well-being and health of older adults and also to mitigate the condition of social isolation in the aging process. For this reason, it is necessary to implement a social learning of electronic/digital tools for health of older people to support the achievement of eHealth and digital competences. The paper reports the results of an Italian innovative eHealth training for the European project ACCESS. The training has been based on blended didactical and interactive educational techniques, aimed at collecting as many points of view as possible from older adults. A total of 58 older adults were recruited to attend a four-week training program, which included five modules. The results showed a statistical significant difference between the eHealth Literacy Scale (eHEALS) mean value before and after the course. A significant negative correlation was found between eHEALS and positive/total Survey of Technology Use (SOTU), suggesting an inverse relationship between positive/total SOTU and eHEALS. There is a strong positive and statistically significant relationship between satisfaction with the training and eHEALS. The results indicate that the intervention increased the digital competences of participants connected to health.


Assuntos
Letramento em Saúde , Telemedicina , Idoso , Humanos , Internet , Satisfação Pessoal , Reprodutibilidade dos Testes , Inquéritos e Questionários
6.
G Ital Cardiol (Rome) ; 22(12): 988-999, 2021 Dec.
Artigo em Italiano | MEDLINE | ID: mdl-34845401

RESUMO

Non-invasive Doppler ultrasonographic study of cerebral arteries (transcranial Doppler, TCD) has been extensively applied on both outpatient and inpatient settings. It is performed placing a low-frequency (≤2 MHz) transducer on the scalp of the patient over specific acoustic windows, in order to visualize the intracranial arterial vessels and to evaluate the cerebral blood flow velocity and its alteration in many different conditions. Nowadays a valid indication for TCD in the outpatient setting is the research of right-to-left shunting, responsible for the so-called "paradoxical embolism", most often due to patency of foramen ovale, which is responsible for the majority of cryptogenic strokes occurring in patients younger than 55 years. TCD also allows to classify the grade of severity of such shunts using the so-called "microembolic signal grading score". Therefore, TCD is an essential cardiological exam for the detection of patent foramen ovale, assuming an important role as a first-level examination to guide the subsequent diagnostic-therapeutic management. In addition, TCD has found many useful applications in neurocritical care practice. It is useful for the identification of intracranial vascular stenosis and for the assessment of critical conditions including vasospasm in subarachnoid hemorrhage, traumatic brain injury and brain stem death. It is also used to evaluate cerebral hemodynamic changes after stroke, to investigate cerebral pressure autoregulation, and for the clinical evaluation of cerebral vasomotor reactivity.


Assuntos
Transtornos Cerebrovasculares , Forame Oval Patente , AVC Isquêmico , Acidente Vascular Cerebral , Forame Oval Patente/complicações , Forame Oval Patente/diagnóstico por imagem , Humanos , Acidente Vascular Cerebral/diagnóstico por imagem , Acidente Vascular Cerebral/etiologia , Ultrassonografia Doppler em Cores , Ultrassonografia Doppler Transcraniana
7.
J Interv Card Electrophysiol ; 61(3): 499-510, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32766945

RESUMO

PURPOSE: Several reports have focused on biatrial ganglionated plexi (GP) transcatheter ablation to treat cardioinhibitory neurocardiogenic syncope (CNS). Considering that anatomical studies showed a significant number of GP in the right atrium (RA), we hypothesized that RA "cardioneuroablation" could be an effective treatment for CNS. METHODS: Eighteen consecutive patients (mean age: 36.9 ± 11.2 years) with severe CNS were submitted to transcatheter ablation of GPs in the RA alone using an anatomical approach. Head up tilt test evaluation was performed during the follow-up period at 6, 12, and 24 months and in case of significant symptoms, while heart rate variability parameters were evaluated at patients discharge at 1, 3, 6, 12, 24, and 36 months after ablation. RESULTS: At a mean follow-up of 34.1 ± 6.1 months, 3 (16.6%) patients experienced syncopal episodes and 5 patients (27.7%) only prodromal episodes. Syncopal and prodromal recurrences were significantly decreased both in overall population (P = 0.001) and in symptomatic patients after ablation (P = 0.003). Heart rate variability analysis showed the loss of autonomic balance secondary to a reincrease of sympathetic tone after the acute phase faster than vagal tone more evident at 12 months (LF/HF vs preablation, P < 0.001) and persistent until 24 months. Finally, a good correlation was observed between symptomatic events and the extension of RF lesions in supero-, middle-, and infero-posterior RA areas (r = 0.73, P = 0.03; r = 0.85, P = 0.02; r = 0.87, P = 0.004, respectively). CONCLUSIONS: Cardioneuroablation in the RA can be considered safe and an effective technique to treat CNS episodes.


Assuntos
Ablação por Cateter , Síncope Vasovagal , Adulto , Seguimentos , Átrios do Coração/diagnóstico por imagem , Átrios do Coração/cirurgia , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Síncope Vasovagal/cirurgia
8.
Monaldi Arch Chest Dis ; 90(2)2020 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-32434316

RESUMO

There is an association between joint hypermobility, hypermobile Ehlers-Danlos syndrome (hEDS) and different forms of orthostatic intolerance. Objective: to explore autonomic profile in a large cohort of adults with hEDS and hypermobility spectrum disorder (hEDS/HSD) with a multimodal approach. In this observational retrospective study, heart rate, blood pressure and baroreflex sensitivity were estimated in 102 hEDS/HSD subjects during deep breathing, Valsalva maneuver, standing up: 30-15 ratio, Head-Up Tilt and sustained handgrip. Abnormal results and head-up tilt test were common and included postural orthostatic tachycardia syndrome (POTS; 48%), orthostatic intolerance (25.5%) and hypotension (3.9%). Baroreflex sensitivity was significantly different in individuals with POTS compared to the others. This study confirms the high rate and heterogeneity of abnormal autonomic regulation in hEDS/HSD, and suggests the baroreflex sensitivity might distinguish comorbid POTS from other profiles in this subgroup of patients. Abnormal autonomic regulation is common in adults with hEDS/HSD and should be regularly assessed for tailoring the management approach.


Assuntos
Síndrome de Ehlers-Danlos/complicações , Síndrome de Ehlers-Danlos/fisiopatologia , Instabilidade Articular/fisiopatologia , Síndrome da Taquicardia Postural Ortostática/etiologia , Adulto , Barorreflexo/fisiologia , Pressão Sanguínea , Estudos de Casos e Controles , Síndrome de Ehlers-Danlos/diagnóstico , Feminino , Força da Mão/fisiologia , Frequência Cardíaca/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Fenótipo , Síndrome da Taquicardia Postural Ortostática/diagnóstico , Respiração , Estudos Retrospectivos , Sistema Nervoso Simpático/fisiopatologia , Teste da Mesa Inclinada/métodos , Manobra de Valsalva/fisiologia
10.
J Cardiovasc Med (Hagerstown) ; 20(11): 731-744, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31567632

RESUMO

: There is a growing interest in the study of the mechanisms of heart and brain interactions with the aim to improve the management of high-impact cardiac rhythm disorders, first of all atrial fibrillation. However, there are several topics to which the scientific interests of cardiologists and neurologists converge constituting the basis for enhancing the development of neuro-arrhythmology. This multidisciplinary field should cover a wide spectrum of diseases, even beyond the classical framework corresponding to stroke and atrial fibrillation and include the complex issues of seizures as well as loss of consciousness and syncope. The implications of a more focused interaction between neurologists and cardiologists in the field of neuro-arrhythmology should include in perspective the institution of research networks specifically devoted to investigate 'from bench to bedside' the complex pathophysiological links of the abovementioned diseases, with involvement of scientists in the field of biochemistry, genetics, molecular medicine, physiology, pathology and bioengineering. An investment in the field could have important implications in the perspectives of a more personalized approach to patients and diseases, in the context of 'precision'medicine. Large datasets and electronic medical records, with the approach typical of 'big data' could enhance the possibility of new findings with potentially important clinical implications. Finally, the interaction between neurologists and cardiologists involved in arrythmia management should have some organizational implications, with new models of healthcare delivery based on multidisciplinary assistance, similarly to that applied in the case of syncope units.


Assuntos
Arritmias Cardíacas/fisiopatologia , Encéfalo/fisiopatologia , Cardiologia , Transtornos Cerebrovasculares/fisiopatologia , Frequência Cardíaca , Coração/inervação , Neurologia , Convulsões/fisiopatologia , Animais , Arritmias Cardíacas/diagnóstico , Arritmias Cardíacas/epidemiologia , Arritmias Cardíacas/terapia , Transtornos Cerebrovasculares/diagnóstico , Transtornos Cerebrovasculares/epidemiologia , Transtornos Cerebrovasculares/terapia , Humanos , Comunicação Interdisciplinar , Equipe de Assistência ao Paciente , Prognóstico , Fatores de Risco , Convulsões/diagnóstico , Convulsões/epidemiologia , Convulsões/terapia
11.
Sci Rep ; 9(1): 13872, 2019 09 25.
Artigo em Inglês | MEDLINE | ID: mdl-31554878

RESUMO

We performed a pilot randomised study to assess the feasibility and radiation exposure of a new computed tomography (CT) protocol that allows screening of both coronary artery disease (CAD) and lung cancer. Current or former heavy smokers at high lung cancer risk with indication to cardiac CT for suspected or known CAD were randomised to undergo concomitant CT evaluation of either cardiac or thoracic area or cardiac CT only. Out of 129 subjects deemed eligible for the study, 110 agreed to participate and were randomised to simultaneous cardiac and lung CT (Gr.A; n = 55) or cardiac CT only (Gr.B; n = 55). The feasibility (i.e. adequate visualization of coronary artery segments) was noninferior with simultaneous cardiac and lung CT compared with the standard cardiac CT (870 of 889 segments [97%] in Gr.A vs 878/890 segments [99%] in Gr.B; mean difference 2.0% [90% confidence interval: -0.3% to 4.1%]). The safety (i.e. effective radiation dose) of the concomitant cardiac and lung CT protocol was noninferior to the standard cardiac CT (1.5 [95% confidence intervals: 1.2-1.7] vs. 1.4 [95% confidence intervals: 1.1-1.6] mSv; mean difference 0.1 mSv [90% confidence interval: -0.2 to 0.3 mSv]). In the two groups, a total of 25 significant (>70%) coronary stenoses were found at cardiac CT (9/55 cases of Gr.A vs 11/55 cases of Gr.B). Pulmonary nodules >2 mm were detected in 7 of the 55 Gr.A subjects. This pilot randomised study shows that concomitant CAD and lung cancer screening by means of a new CT protocol is both feasible and safe, thus allowing a comprehensive evaluation of both cardiac and thoracic regions during one CT scanning only. (ClinicalTrials.gov Identifier: NCT03727958).


Assuntos
Doença da Artéria Coronariana/diagnóstico por imagem , Neoplasias Pulmonares/diagnóstico por imagem , Programas de Rastreamento/métodos , Tomografia Computadorizada por Raios X/métodos , Idoso , Angiografia Coronária/métodos , Doença da Artéria Coronariana/diagnóstico , Detecção Precoce de Câncer/métodos , Feminino , Humanos , Neoplasias Pulmonares/diagnóstico , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Doses de Radiação
12.
Epileptic Disord ; 21(3): 295-301, 2019 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-31225804

RESUMO

Cardiac arrhythmias are a common but often overlooked symptom that occur during or after epileptic seizures. The characterization of seizure-related heart rhythm disorders could shed light on the functional organization of the so-called "central autonomic network" and possibly on the pathophysiology of sudden death of epilepsy patients (SUDEP). Indeed, epileptic discharges may affect the heart through the involvement of cortical regions selectively driving autonomic functions. Ictal atrial fibrillation is an exceedingly rare phenomenon, usually associated with generalized tonic-clonic seizures. Here, we report a case of paroxysmal atrial fibrillation as a core presenting feature of a focal non-motor seizure in a 68-year-old man, at first misdiagnosed and treated for a typical cardiogenic arrhythmia. A brief literature review is included.


Assuntos
Morte Súbita/etiologia , Epilepsia/complicações , Convulsões/complicações , Convulsões/terapia , Eletrocardiografia/métodos , Eletroencefalografia/métodos , Epilepsia/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Convulsões/diagnóstico , Resultado do Tratamento
14.
Biomed Res Int ; 2017: 9161865, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28286774

RESUMO

Background. Joint hypermobility syndrome/Ehlers-Danlos syndrome, hypermobility type (JHS/EDS-HT), is a hereditary connective tissue disorder mainly characterized by generalized joint hypermobility, skin texture abnormalities, and visceral and vascular dysfunctions, also comprising symptoms of autonomic dysfunction. This study aims to further evaluate cardiovascular autonomic involvement in JHS/EDS-HT by a battery of functional tests. Methods. The response to cardiovascular reflex tests comprising deep breathing, Valsalva maneuver, 30/15 ratio, handgrip test, and head-up tilt test was studied in 35 JHS/EDS-HT adults. Heart rate and blood pressure variability was also investigated by spectral analysis in comparison to age and sex healthy matched group. Results. Valsalva ratio was normal in all patients, but 37.2% of them were not able to finish the test. At tilt, 48.6% patients showed postural orthostatic tachycardia, 31.4% orthostatic intolerance, 20% normal results. Only one patient had orthostatic hypotension. Spectral analysis showed significant higher baroreflex sensitivity values at rest compared to controls. Conclusions. This study confirms the abnormal cardiovascular autonomic profile in adults with JHS/EDS-HT and found the higher baroreflex sensitivity as a potential disease marker and clue for future research.


Assuntos
Doenças do Sistema Nervoso Autônomo/fisiopatologia , Barorreflexo , Síndrome de Ehlers-Danlos/fisiopatologia , Força da Mão , Instabilidade Articular/fisiopatologia , Doenças Neurodegenerativas/fisiopatologia , Síndrome da Taquicardia Postural Ortostática/fisiopatologia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
15.
J Neurol Sci ; 370: 251-255, 2016 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-27772769

RESUMO

BACKGROUND: The clinical presentation of Parkinson's disease (PD) includes a wide spectrum of non-motor features, including cardiovascular autonomic failure. OBJECTIVE: To evaluate cardiovascular autonomic status and cardiac functional capacity in drug-naïve PD patients. METHODS: 18 newly-diagnosed PD patients underwent laboratory cardiovascular autonomic function tests using power spectral analysis of the R-R interval, blood pressure (BP) short-term variability and non-invasive baroreflex sensitivity (BRS). A two-dimensional (2D) transthoracic echocardiogram, spirometry and cardiopulmonary exercise test (CPET) were also performed. Thirteen patients underwent myocardial scintigraphy with [123I] metaiodobenzylguanidine (MIBG). RESULTS: At rest, total power spectral analysis of heart rate variability was lower in PD patients than in controls. BRS decreased during sympathetic activation in both patients and controls. While echocardiography and spirometry were normal, a mild degree of exercise intolerance was observed at the CPET in PD patients (mean V'O2max: 83% of predicted; mean Wmax: 80% of predicted). The heart-to-mediastinum (H/M) ratio of MIBG uptake was pathologically impaired in 9 patients, one of whom displayed a definite cardiovascular dysautonomic pattern. CONCLUSIONS: Our results confirm that subclinical to overt cardiovascular autonomic failure may occur from the early stages of PD. The less efficient adaptive response to physical stimuli during the CPET and postural changes observed in untreated PD patients possibly reflect cardiac sympathetic denervation, although the involvement of PD-related motor impairment in physical deconditioning cannot be excluded.


Assuntos
Doenças Cardiovasculares/fisiopatologia , Doença de Parkinson/fisiopatologia , 3-Iodobenzilguanidina , Barorreflexo , Doenças Cardiovasculares/complicações , Doenças Cardiovasculares/diagnóstico , Ecocardiografia , Teste de Esforço , Feminino , Coração/diagnóstico por imagem , Coração/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Imagem de Perfusão do Miocárdio , Doença de Parkinson/complicações , Doença de Parkinson/diagnóstico , Compostos Radiofarmacêuticos , Espirometria
16.
Int J Stroke ; 11(3): 361-7, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26873942

RESUMO

RATIONALE: Atrial fibrillation is associated with a high risk of stroke and its prevalence increases in subjects aged ≥65 years. After an ischemic stroke, the use of standard monitoring methods may underestimate the detection rate of atrial fibrillation. Hence, it is very likely that even patients having a first atherothrombotic or lacunar stroke with high burden of vascular risk factors are exposed to increased risk of developing atrial fibrillation in the subsequent years and atrial fibrillation may be the cause underlying possible recurrent strokes AIM AND HYPOTHESIS: The Silent Atrial Fibrillation aFter Ischemic StrOke (SAFFO) trial has the objective to evaluate the detection of atrial fibrillation or atrial flutter as first diagnosis by implantable loop recorder in patients with first-ever atherothrombotic or lacunar stroke. We hypothesize that the detection will be higher than that observed by using standard cardiac monitoring METHODS AND DESIGN: SAFFO is a prospective, multicenter, randomized, controlled, open-label trial with blinded assessment of outcome measures. Patients who fulfill inclusion criteria will be randomized to either continuous monitoring using an implantable loop recorder plus standard monitoring (intervention arm) or standard heart rhythm monitoring alone (control arm) with a ratio of 1:1 STUDY OUTCOMES: The primary endpoint is the detection of atrial fibrillation/atrial flutter as first diagnosis in the first 12 months of the study period DISCUSSION: If positive, SAFFO trial could have important clinical implications in terms of changing the standard diagnostic protocol in patients with atherothrombotic and lacunar stroke, and of increasing the shift of secondary prevention treatment from antiplatelet to anticoagulant therapy.


Assuntos
Fibrilação Atrial/diagnóstico , Isquemia Encefálica/diagnóstico , Monitorização Fisiológica/instrumentação , Acidente Vascular Cerebral/diagnóstico , Anticoagulantes/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Isquemia Encefálica/tratamento farmacológico , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Monitorização Fisiológica/métodos , Estudos Prospectivos , Recidiva , Fatores de Risco , Acidente Vascular Cerebral/tratamento farmacológico , Resultado do Tratamento
17.
Clin Auton Res ; 26(2): 97-105, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26801189

RESUMO

OBJECTIVE: Supine hypertension (SH) is a feature of cardiovascular autonomic failure that often accompanies orthostatic hypotension and may represent a negative prognostic factor in parkinsonian syndromes. Here we investigated the frequency rate as well as the clinical and tilt test correlates of SH in Parkinson's disease (PD) and multiple system atrophy (MSA). METHODS: 197 PD (33 demented) and 78 MSA (24 MSA-Cerebellar, 54 MSA-Parkinsonian) patients who had undergone a tilt test examination were retrospectively included. Clinical-demographic characteristics were collected from clinical records at the time of the tilt test examination. RESULTS: SH (>140 mmHg systolic, >90 mmHg diastolic) occurred in 34 % of PD patients (n = 66, mild in 71 % of patients, moderate in 27 %, severe in 2 %) and 37 % of MSA ones (n = 29, mild in 55 % of patients, moderate in 17 %, severe in 28 %). No difference was observed in SH frequency between demented versus gender-, age- and disease duration-matched non-demented PD patients, or between patients with the parkinsonian (MSA-P) versus the cerebellar (MSA-C) variant of MSA. In PD, SH was associated with presence of cardiovascular comorbidities (p = 0.002) and greater systolic (p = 0.007) and diastolic (p = 0.002) orthostatic blood pressure fall. Orthostatic hypotension (p = 0.002), and to a lesser degree, lower daily dopaminergic intake (p = 0.01) and use of anti-hypertensive medications (p = 0.04) were associated with SH in MSA. INTERPRETATION: One-third of PD and MSA patients suffer from mild to severe SH, independently of age, disease duration or stage. In PD, cardiovascular comorbidities significantly contribute to the development of SH, while in MSA, SH appears to reflect cardiovascular autonomic failure.


Assuntos
Hipertensão/etiologia , Atrofia de Múltiplos Sistemas/complicações , Atrofia de Múltiplos Sistemas/fisiopatologia , Doença de Parkinson/complicações , Doença de Parkinson/fisiopatologia , Idoso , Doenças do Sistema Nervoso Autônomo/fisiopatologia , Sistema Cardiovascular/fisiopatologia , Feminino , Humanos , Hipertensão/fisiopatologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Decúbito Dorsal , Teste da Mesa Inclinada
19.
J Neurol ; 261(7): 1291-9, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24737171

RESUMO

A pathological nocturnal blood pressure (BP) profile, either non-dipping or reverse dipping, occurs in more than 50% of subjects diagnosed with multiple system atrophy (MSA) or Parkinson's disease (PD). This may play a negative prognostic role in α-synucleinopathies, but, being mostly asymptomatic, remains largely underdiagnosed. In this proof-of-concept study, we aimed at developing a decision-support algorithm to predict pathological nocturnal BP profiles during a standard tilt-table examination in PD and MSA. Sixteen MSA and 16 PD patients underwent standard tilt-table examination and 24-h ambulatory BP monitoring (24-h ABPM). Clinical and tilt test differences between patients with a normal and a pathological nocturnal BP profile at 24-h ABPM were assessed, and a decision-support algorithm was developed accordingly. 75% of MSA and 31 % of PD patients showed a pathological nocturnal BP profile. This was associated with more pronounced orthostatic BP drop (p = 0.03), joint occurrence of orthostatic hypotension and supine hypertension (p = 0.046), and lack of BP overshoot in the late phase II (II_L, p = 0.002) and in the phase IV (p = 0.007) of the Valsalva manoeuvre. Combined ∆BP ≤0.5 mmHg in the II_L and ≤-7 mmHg in the IV phase of Valsalva manoeuvre correctly predicted a pathological nocturnal BP profile with 87.5% sensitivity and 85.7% specificity. Pathological nocturnal BP profiles are associated with evidence of cardiovascular noradrenergic failure in PD and MSA. The Valsalva manoeuvre is routinely performed during standard tilt-table examinations. We propose the naked-eye evaluation of Valsalva phase II_L and phase IV BP behaviour as time-sparing screening tool for pathological nocturnal BP profiles in PD and MSA.


Assuntos
Ritmo Circadiano/fisiologia , Hipotensão Ortostática/diagnóstico , Hipotensão Ortostática/etiologia , Atrofia de Múltiplos Sistemas/complicações , Doença de Parkinson/complicações , Idoso , Algoritmos , Estudos de Casos e Controles , Técnicas de Apoio para a Decisão , Feminino , Frequência Cardíaca/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Teste da Mesa Inclinada , Manobra de Valsalva/fisiologia
20.
Hum Brain Mapp ; 34(7): 1605-14, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22371351

RESUMO

The effect of autonomic perturbation (AP) on the central nervous system functioning is still largely unknown. Using an automated neck suction device to stimulate the carotid mechanoreceptors in the carotid sinus (parasympathetic pathway), operated synchronously with functional magnetic resonance imaging (fMRI) acquisition, we investigated the effects of AP on the activity of the brain at rest and when engaged in a visuo-spatial attention task. ECG was always recorded to index changes in autonomic function. At rest, AP induced increased activation in the insula and in the amygdala, which have been previously associated with the autonomic control and emotion processing, as well as in the caudate nucleus and in the medial temporal cortex, both implicated in cognitive functions. Despite a preserved performance during visuo-spatial attention task, AP induced increased reaction times and a positive modulation on the activation of the right posterior parietal cortex, the occipital cortex, the periaquiductal gray, and nuclei of the brainstem. We speculate that this modulation of brain activity represents, at different anatomical levels, a compensation mechanism to maintain cognitive efficiency under parasympathetic stimulation, which is traditionally considered as the system for energy regain and storage. In conclusion, this study provides the first evidence of a dynamic interaction between AP and higher level functions in humans.


Assuntos
Sistema Nervoso Autônomo/fisiologia , Mapeamento Encefálico , Encéfalo/fisiologia , Cognição/fisiologia , Descanso/fisiologia , Adulto , Vias Aferentes/fisiologia , Atenção , Pressão Sanguínea , Encéfalo/irrigação sanguínea , Eletrocardiografia , Frequência Cardíaca/fisiologia , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Pescoço/inervação , Testes Neuropsicológicos , Oxigênio/sangue , Estimulação Física , Respiração , Percepção Espacial , Adulto Jovem
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