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Phénomènes physiologiques respiratoires et circulatoires
Phénomènes physiologiques respiratoires
Capacité pulmonaire totale
Capacité vitale
Capacité vitale : Questions médicales fréquentes
Termes MeSH sélectionnés :
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"description": "Comment évaluer la capacité vitale ?\nQuels tests complètent l'évaluation ?\nQuels sont les critères normaux de capacité vitale ?\nQuand suspecter une capacité vitale réduite ?\nQuels signes indiquent un problème pulmonaire ?",
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"description": "Quels sont les principaux facteurs de risque ?\nL'âge influence-t-il la capacité vitale ?\nLes maladies chroniques sont-elles un facteur ?\nLe sexe joue-t-il un rôle ?\nL'environnement de travail est-il un facteur ?",
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"name": "Comment évaluer la capacité vitale ?",
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"text": "La capacité vitale est mesurée par spirométrie, un test de la fonction pulmonaire."
}
},
{
"@type": "Question",
"name": "Quels tests complètent l'évaluation ?",
"position": 2,
"acceptedAnswer": {
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"text": "Des tests comme la pléthysmographie et les gaz du sang peuvent être utilisés."
}
},
{
"@type": "Question",
"name": "Quels sont les critères normaux de capacité vitale ?",
"position": 3,
"acceptedAnswer": {
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"text": "Les valeurs normales varient selon l'âge, le sexe et la taille, généralement entre 3 et 6 L."
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{
"@type": "Question",
"name": "Quand suspecter une capacité vitale réduite ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une capacité vitale réduite est suspectée en cas de dyspnée ou d'antécédents de maladies pulmonaires."
}
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{
"@type": "Question",
"name": "Quels signes indiquent un problème pulmonaire ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des signes comme la toux persistante ou la fatigue peuvent indiquer une capacité vitale altérée."
}
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{
"@type": "Question",
"name": "Quels symptômes sont liés à une capacité vitale faible ?",
"position": 6,
"acceptedAnswer": {
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"text": "Les symptômes incluent essoufflement, fatigue, et sensation d'oppression thoracique."
}
},
{
"@type": "Question",
"name": "La toux est-elle un symptôme associé ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une toux persistante peut accompagner une capacité vitale diminuée."
}
},
{
"@type": "Question",
"name": "Comment la fatigue se manifeste-t-elle ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "La fatigue peut se manifester par une diminution de l'énergie et des difficultés à l'effort."
}
},
{
"@type": "Question",
"name": "Y a-t-il des signes d'alerte ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des signes comme des douleurs thoraciques ou une cyanose nécessitent une attention médicale immédiate."
}
},
{
"@type": "Question",
"name": "Les symptômes varient-ils selon l'âge ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les symptômes peuvent être plus prononcés chez les personnes âgées en raison de la dégradation pulmonaire."
}
},
{
"@type": "Question",
"name": "Comment prévenir la réduction de la capacité vitale ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter le tabagisme, pratiquer une activité physique régulière et avoir une alimentation équilibrée."
}
},
{
"@type": "Question",
"name": "Les vaccinations sont-elles importantes ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les vaccins contre la grippe et le pneumocoque aident à prévenir les infections respiratoires."
}
},
{
"@type": "Question",
"name": "Quel rôle joue l'exercice physique ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'exercice régulier améliore la fonction pulmonaire et la capacité vitale."
}
},
{
"@type": "Question",
"name": "Faut-il éviter certaines expositions ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, éviter les polluants et les allergènes peut aider à préserver la santé pulmonaire."
}
},
{
"@type": "Question",
"name": "L'hydratation est-elle importante ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une bonne hydratation aide à maintenir la santé des voies respiratoires."
}
},
{
"@type": "Question",
"name": "Quels traitements améliorent la capacité vitale ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traitements incluent la réhabilitation pulmonaire, les bronchodilatateurs et les corticostéroïdes."
}
},
{
"@type": "Question",
"name": "La physiothérapie est-elle utile ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la physiothérapie respiratoire aide à améliorer la capacité vitale et la fonction pulmonaire."
}
},
{
"@type": "Question",
"name": "Les médicaments peuvent-ils aider ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des médicaments comme les bronchodilatateurs peuvent aider à ouvrir les voies respiratoires."
}
},
{
"@type": "Question",
"name": "Quand envisager une intervention chirurgicale ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Une chirurgie peut être envisagée en cas de maladies pulmonaires graves, comme la BPCO."
}
},
{
"@type": "Question",
"name": "Les traitements varient-ils selon la cause ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le traitement dépend de la cause sous-jacente de la réduction de la capacité vitale."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent l'insuffisance respiratoire et des infections pulmonaires."
}
},
{
"@type": "Question",
"name": "La capacité vitale faible augmente-t-elle les risques ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une capacité vitale faible augmente le risque de complications respiratoires graves."
}
},
{
"@type": "Question",
"name": "Les maladies cardiaques sont-elles liées ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une capacité vitale réduite peut être associée à un risque accru de maladies cardiaques."
}
},
{
"@type": "Question",
"name": "Comment les infections affectent-elles la capacité vitale ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les infections pulmonaires peuvent réduire la capacité vitale en provoquant une inflammation."
}
},
{
"@type": "Question",
"name": "Y a-t-il des effets à long terme ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une capacité vitale réduite peut entraîner des effets à long terme sur la santé respiratoire."
}
},
{
"@type": "Question",
"name": "Quels sont les principaux facteurs de risque ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les principaux facteurs incluent le tabagisme, l'exposition à des polluants et des antécédents familiaux."
}
},
{
"@type": "Question",
"name": "L'âge influence-t-il la capacité vitale ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, la capacité vitale diminue généralement avec l'âge en raison de la dégradation pulmonaire."
}
},
{
"@type": "Question",
"name": "Les maladies chroniques sont-elles un facteur ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des maladies comme l'asthme ou la BPCO augmentent le risque de capacité vitale réduite."
}
},
{
"@type": "Question",
"name": "Le sexe joue-t-il un rôle ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les hommes ont généralement une capacité vitale plus élevée que les femmes en moyenne."
}
},
{
"@type": "Question",
"name": "L'environnement de travail est-il un facteur ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, travailler dans des environnements pollués ou dangereux peut affecter la capacité vitale."
}
}
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}
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Performing simulations with a realistic biophysical auditory nerve fiber model can be very time-consuming, due to the complex nature of the calculations involved. Here, a surrogate (approximate) model...
This study investigated the correlation between the diameter of the bony cochlear nerve canal (BCNC), as determined by Temporal bone CT, and MRI findings of cochlear nerves (CN) in children with senso...
A prospective study design was followed. Radiological data (Temporal bone CT and MRI) of fifty children with sensorineural hearing loss (age <18 y) were included in the study. All patients (100 ears) ...
Based on CT findings, the BCNC was classified according to its diameter into three groups; group 1 (<1.4 mm), group 2 (1.4-2.0 mm), and group 3 (>2.0 mm). A significant difference between the three gr...
MRI and CT imaging are valuable in the diagnosis of SNHL in children. Moreover, with BCNC stenosis, there was a high probability of CN aplasia or hypoplasia....
This study aimed to assess the prevalence of cochlear nerve deficiency (CND) in a cohort of pediatric patients with single-sided deafness (SSD). A secondary objective was to investigate trends in inte...
Case series with chart review....
Pediatric tertiary care center....
Children ages 0 to 21 years with SSD (N = 190) who underwent computerized tomography (CT) and/or magnetic resonance imaging (MRI) were included. Diagnostic criteria for SSD included unilateral severe-...
The prevalence of CND was 42% for children with CT only, 76% for children with MRI only, and 63% for children with both MRI and CT. Of the children with MRI and CT, there was a 90% concordance across ...
There is a high prevalence of CND in children with SSD. Cochlear nerve status should be confirmed via MRI in children with SSD. The limited implementation and use of hearing devices observed for child...
Advanced age is associated with poorer speech perception outcomes in cochlear implant (CI) users. In an effort to improve our understanding of the basis for this decline, this study focused on the con...
To investigate the effect of aging on intraoperative, suprathreshold eCAP responses (amplitude growth function [AGF] slopes, eCAP maximum amplitudes, and N1 latencies) across the electrode array, in a...
Participants of this retrospective study consisted of 113 middle-aged and older CI recipients. Intraoperative eCAP measures consisted of AGF slopes, maximum amplitudes, and N1 latencies at the maximum...
There was a moderate to strong association between suprathreshold eCAP measures (eCAP AGF slopes and maximum amplitudes) and age, particularly for basal and middle electrodes. For apical electrodes, c...
Results of this study add to a growing body of evidence suggesting that aging may negatively affect suprathreshold eCAP responses, especially in basal and middle cochlear regions. Although it is diffi...
This proof of concept describes the use of evoked electromyographic (EMG) activation of the facial nerve for intraoperative monitoring of the electrode insertion during cochlear implantation (CI). Int...
Highly accurate real-time cochlear nerve monitoring to preserve cochlear nerve function is essential for simultaneous cochlear implantation and ipsilateral vestibular schwannoma resection. In the pres...
Profound congenital sensorineural hearing loss (SNHL) prevents children from developing spoken language. Cochlear implantation and auditory brainstem implantation can provide partial hearing sensation...
It is challenging to program children with cochlear nerve deficiency (CND) due to limited auditory and speech abilities or concurrent neurological deficits. Electrically evoked compound action potenti...
Cochlear nerve preservation during surgery for vestibular schwannoma (VS) may be challenging. Brainstem auditory evoked potentials and cochlear compound nerve action potentials have clearly shown thei...
The details for the electrode setup, stimulation, and recording parameters are provided. Data of patients for whom PAMR was recorded during surgery were prospectively collected and analyzed....
PAMRs were recorded in all patients at the ipsilateral vertex-earlobe scalp electrode, and in 90% of the patients they were also observed in the contralateral electrode. The optimal stimulation intens...
PAMR monitoring may be useful in mapping the position and trajectory of the cochlear nerve to enable hearing preservation during surgery....
Congenital unilateral sensorineural hearing loss (cuSNHL) carries potentially significant social, educational, and developmental consequences. Early diagnosis enables investigation, and consideration ...
Infants with severe-profound cuSNHL referred to a large Australian quaternary pediatric center between October 2004 and December 2020 were retrospectively included. Audiometric and clinical data, and ...
A total of 98 patients were reviewed, 64.3% (n = 63) of whom underwent MRI. The median age at diagnosis was 40 days (IQR 27). The prevalence of CND was 75% (n = 47). Importantly, there was no signific...
CND is a prominent cause of cuSNHL in Australian infants. MRI at a young age allows parent education regarding management options and timely intervention where indicated. Socioeconomic disadvantage si...