Factors affecting respiratory system compliance in anaesthetised mechanically ventilated healthy dogs: a retrospective study

被引:14
作者
Asorey, I [1 ]
Pellegrini, L. [2 ]
Canfran, S. [2 ]
Ortiz-Diez, G. [2 ]
Aguado, D. [2 ]
机构
[1] Dick White Referrals, Stn Farm London Rd, Six Mile Bottom CB8 0UH, Cambs, England
[2] Univ Complutense Madrid, Sch Vet Med, Dept Anim Med & Surg, Avda Puerta de Hierro S-N, Madrid 28040, Spain
关键词
END-EXPIRATORY PRESSURE; PULMONARY ATELECTASIS; GENERAL-ANESTHESIA; LUNG AERATION; GAS-EXCHANGE; RECRUITMENT; OXYGENATION; PREVENTION; OBESITY;
D O I
10.1111/jsap.13194
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Objectives To determine the influence of several factors on respiratory system compliance in volume-controlled mechanically ventilated healthy anaesthetised dogs. Materials and Methods Review of 100 dogs anaesthetised for elective surgeries between 2015 and 2016. Dogs were mechanically ventilated with a respiratory rate adjusted to maintain normocapnia and a fraction of inspired oxygen of 50%. Body weight, body condition score, age, thoracic shape, time in spontaneous ventilation before volume-controlled ventilation, time with a fraction of inspired oxygen of 100% until starting mechanical ventilation, type of surgery and patient position were recorded. Respiratory system compliance, expressedperkg of bodyweight, was recorded every 15 minutes following initiation of volume-controlled ventilation. Results Baseline respiratory system compliance was 1.3 +/- 0.3 mL/cmH(2)O/kg and was reduced by high body condition score and barrel-shaped thorax but not by age, type of surgery or patient position, time in spontaneous ventilation nor time with a fraction of inspired oxygen of 100%. Clinical Significance Respiratory system compliance is lower in overweight and barrel-chested dogs and should be taken into account during monitoring of lung function and ventilation management under general anaesthesia.
引用
收藏
页码:617 / 623
页数:7
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