Lung aeration and volumes following alveolar recruitment maneuvers with three airway pressures in healthy anesthetized and mechanically ventilated Beagle dogs

Araos, Joaquín; Sedgwick, Samantha; Staffieri, Francesco; Donati, Pablo; Martin‐Flores, Manuel

doi:10.1016/j.vaa.2022.06.005

Cited by 3 publications

(4 citation statements)

References 29 publications

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“…La concentración de oxígeno suministrada durante la cirugía se ajusta según las necesidades del perro y la evaluación de la saturación de oxígeno (Araos et al, 2022). Se debe monitorizar de cerca la función respiratoria del perro, incluyendo la frecuencia y profundidad de la respiración, así como la presión arterial y la saturación de oxígeno, cualquier cambio inusual en estos parámetros puede indicar problemas respiratorios (O' Keeffe & Donaldson, 2023).…”

Section: Mantenimiento De Oxígeno Durante La Cirugíaunclassified

Desarrollo y evaluación de mascarillas de oxigenación en 3D diseñadas para caninos en recuperación post quirúrgica

Córdova-Hidalgo,

Maldonado-Cornejo,

Castillo-Hidalgo

2024

MQRInvestigar

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En la medicina veterinaria, el desarrollo de mascarillas de oxigenación en 3D para caninos en recuperación postquirúrgica representa un avance significativo, pues proporcionan un soporte respiratorio óptimo y mejoran el confort del paciente durante el proceso de recuperación. El objetivo principal de esta investigación fue diseñar, desarrollar y evaluar mascarillas de oxigenación en 3D diseñadas para caninos en recuperación postquirúrgica. La metodología utilizada fue carácter experimental y transversal, con un enfoque cuantitativo, un alcance correlacional y un tipo de estudio analítico; para su efecto se utilizó una impresora 3D con resina líquida para elaborar las mascarillas, basadas en especificaciones anatómicas caninas y se probó su eficacia en 30 pacientes caninos sometidos a cirugía de ovariohisterectomía (OVH). El estudio demostró que las mascarillas proporcionan un soporte respiratorio efectivo y mejoran significativamente el confort de los caninos en recuperación postquirúrgica. Se observó una mejora notable en la recuperación anestésica y una adecuada oxigenación tisular en los pacientes que utilizaron la mascarilla. Además, se destacaron los beneficios en la estabilidad cardiaca y la mejora en la saturación de oxígeno de dichos pacientes, demostrando su eficacia e importancia para administrar una adecuada oxigenación en pacientes caninos que serán sometidos a un procedimiento quirúrgico.

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Section: Mantenimiento De Oxígeno Durante La Cirugíaunclassified

Desarrollo y evaluación de mascarillas de oxigenación en 3D diseñadas para caninos en recuperación post quirúrgica

Córdova-Hidalgo,

Maldonado-Cornejo,

Castillo-Hidalgo

2024

MQRInvestigar

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“…The amount of pressure needed to recruit collapsed alveoli is highly variable depending on the severity of pulmonary disease and patient demographics. In one veterinary study of mechanically ventilated healthy beagles, a recruitment airway pressure of 15 cmH 2 O was recommended as it reduced the amount of hypoaerated lung without overdistending the lung ( 18 ). It is unknown if this recruitment airway pressure applies to dogs with pulmonary disease.…”

Section: Techniques For Setting the Optimal Peepmentioning

confidence: 99%

“…-Inspiratory hold for 30 s at 15 cmH 2 O airway pressure (18). While the above RMs have been described in the veterinary literature, it is important to note that an airway pressure of 15 cmH 2 O may not be considered a RM in human medicine.…”

Section: Recruitment Maneuversmentioning

confidence: 99%

Setting the optimal positive end-expiratory pressure: a narrative review

Zersen

2023

Front. Vet. Sci.

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The primary goals of positive end-expiratory pressure (PEEP) are to restore functional residual capacity through recruitment and prevention of alveolar collapse. Through these mechanisms, PEEP improves arterial oxygenation and may reduce the risk of ventilator-induced lung injury (VILI). Because of the many potential negative effects associated with the use of PEEP, much research has concentrated on determining the optimal PEEP setting. Arterial oxygenation targets and pressure-volume loops have been utilized to set the optimal PEEP for decades. Several other techniques have been suggested, including the use of PEEP tables, compliance, driving pressure (DP), stress index (SI), transpulmonary pressures, imaging, and electrical impedance tomography. Each of these techniques has its own benefits and limitations and there is currently not one technique that is recommended above all others.

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“…However, CMV alone has proven to be unreliable as a treatment for hypoxemia secondary to atelectasis and elevated venous admixture. Thus, within the CMV paradigm, additional strategies have been described including flow controlled expiration (20,21), positive end-expiratory pressure (PEEP) and alveolar recruitment maneuvers (ARMs) [e.g., see (22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)(34)]. Outside the CMV paradigm, strategies such as continuous positive airway pressure (CPAP) (35-37) and apneustic anesthesia ventilation (AAV) (10) have also been described.…”

Section: Introductionmentioning

confidence: 99%

Cardiopulmonary effects of apneustic anesthesia ventilation in anesthetized pigs: a new mode of ventilation for anesthetized veterinary species

Bukoski,

Downs,

Hodgson

et al. 2024

Front. Vet. Sci.

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ObjectiveTo compare the cardiopulmonary effects of apneustic anesthesia ventilation (AAV) and conventional mechanical ventilation (CMV) in anesthetized pigs and to describe a new mode of ventilation for anesthetized veterinary species.Study designRandomized, crossover design without washout.AnimalsTwelve healthy, female white Landrace pigs.MethodsFollowing ketamine-midazolam premedication and anesthetic induction with propofol, the trachea was intubated, and each pig was positioned in dorsal recumbency. Anesthesia was maintained with propofol and sufentanil infusions. Pigs were instrumented and their lungs were sequentially ventilated with each mode, in random order, for 1 h according to predefined criteria [fraction of inspired oxygen (FiO2) = 0.21, 10 mL kg−1 tidal volume (VT), and arterial carbon dioxide tension (PaCO2) within 40–45 mmHg]. Cardiopulmonary data were collected at baseline, 30 and 60 min. In 8 pigs, thoracic computed tomography (CT) was performed following the 60 min time point for each mode of ventilation and images were analyzed to quantify lung aeration. The effects of ventilation mode, time, and order were analyzed using repeated measures ANOVA. Paired t-tests were used to compare lung aeration between modes. Significance was defined as p < 0.05.ResultsData from 12 pigs were analyzed. A significant effect of mode was found for heart rate, mean arterial pressure (MAP), pulmonary artery occlusion pressure, cardiac index (CI), stroke volume index, systemic vascular resistance, pulmonary vascular resistance, oxygen delivery index (DO2I), oxygen extraction ratio (O2ER), VT, arterial oxygen tension, arterial hemoglobin saturation, PaCO2, end-tidal carbon dioxide tension, alveolar dead space (VDalv/VTalv), venous admixture (Q.s/Q.t), mean airway pressure, and dynamic compliance index (CRSI). Order effects were also observed for some cardiovascular and respiratory variables. For the eight pigs that underwent thoracic CT, AAV resulted in significantly larger proportions of normally and hyperaerated lung while CMV resulted in larger proportions of hypoaerated and atelectatic lung.ConclusionsIn dorsally recumbent anesthetized pigs, ventilated with FiO2 = 0.21, both modes of ventilation supported adequate oxygenation while AAV resulted in higher CRSI, and lower VDalv/VTalv and Q.s/Q.t, compared with CMV. AAV was also associated with lower MAP, CI, and DO2I and higher O2ER compared with CMV. Further investigation of AAV in anesthetized animals is warranted.

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Lung aeration and volumes following alveolar recruitment maneuvers with three airway pressures in healthy anesthetized and mechanically ventilated Beagle dogs

Cited by 3 publications

References 29 publications

Desarrollo y evaluación de mascarillas de oxigenación en 3D diseñadas para caninos en recuperación post quirúrgica

Desarrollo y evaluación de mascarillas de oxigenación en 3D diseñadas para caninos en recuperación post quirúrgica

Setting the optimal positive end-expiratory pressure: a narrative review

Cardiopulmonary effects of apneustic anesthesia ventilation in anesthetized pigs: a new mode of ventilation for anesthetized veterinary species

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