Blood pressure monitoring under general anesthesia in the dog: comparative study between invasive and non-invasive method
Notice bibliographique
Résumé
Hypotension is a common complication during anaesthesia and it has been hypothesized that monitoring of cardiovascular and respiratory function may reduce anaesthetic related mortality. Perfusion of vital organs is the key function of the cardiovascular system. Aortic pressure measurement is an important indicator of organ perfusion. Peripheral arterial blood pressure is commonly used to assess cardiovascular status in clinical practice, although it differs from the central blood pressure and it is not considered a completely reliable indicator of tissue perfusion. Invasive, direct, arterial pressure monitoring via cannulation of a peripheral artery (IBP) is considered more accurate than non-invasive, indirect, oscillometric method (NIBP) in both awake and anesthetized animals, and allows for continuous measurements instead of intermittent values obtainable with NIBP. \nThe aim of the study was to compare IBP and NIBP detected simultaneously in dogs during general anaesthesia. \nFifteen ASA I (American Society of Anaesthesiologists) female dogs, aged between 11 months and 4 years, with an average weight of 31.7 kg (range: 19 to 41 kg), 5 mix-breed and 10 pure-breed dogs (among which German and Belgian Shepherd, Labrador and Golden Retriever, Bernese Mountain Dog), undergoing elective laparotomic ovariectomy, were utilized to perform the study. Both IBP and NIBP were measured simultaneously during general anaesthesia, in the same dogs, every 2 minutes for a total of 30 minutes, using multiparametric BeneView 8 anesthetic monitor (Shenzhen Mindray Bio-Medical Elettronics Co., Ltd). IBP measurements were obtained using a catheter placed in the dorsal pedal artery and an electronic pressure transducer. NIBP measurements were obtained using an appropriately sized cuff placed around the contralateral metatarsal region. Systolic (SAP), diastolic (DAP) and mean (MAP) arterial pressures measured in each dog, in each study time, with NIBP and with IBP were compared using a Student t-test. All data were analysed with statistical software (STATA Software, Version 13.1 SE, College Station, Texas, USA). \nAll dogs completed the study. The mean±sd SAP obtained using NIBP (98.65±21.70 mmHg) and IBP (101.21±17.90 mmHg) were almost superimposable [P>0.05], while mean±sd DAP and MAP obtained using NIBP (DAP: 58.55±18.17; MAP: 68.55±19.58 mmHg) and IBP (MAP: 66.81±15.89; DAP: 75.07±15.20 mmHg) presented no statistically significant discrepancies [P>0.05]. The trend of NIBP values was lower than that of the IBP values providing interesting ideas for further study. \nThe results obtained in this study suggest that both methods are accurate and reliable in dogs during general anaesthesia. Non-invasive method seems to be almost as valid as the invasive method for the assessment of the cardiovascular system, in relation to the characteristics of the monitor used.
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Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,001 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».