Objective

To evaluate a supraglottic airway device (SGAD) designed for rabbits in African pygmy hedgehogs (Atelerix albiventris) during inhalation anesthesia.

Study design

Prospective, randomized, blinded experimental study.

Animals

A total of 12 adult African pygmy hedgehogs (seven male, five female).

Methods

Hedgehogs were placed in a chamber and anesthesia was induced using isoflurane in oxygen. Oropharyngeal endoscopy was performed and video recorded. The SGAD (v-gel R1) was inserted and connected to a Mapleson D circuit. Capnography, pulse oximetry and physiologic variables were measured during anesthesia, and lung inflation was tested at 10 and 20 cmH₂O. With the SGAD temporarily disconnected, anesthetized hedgehogs were randomly positioned into right and left lateral, dorsal and sternal recumbency to evaluate the effect of a change in body position on SGAD placement. Oropharyngeal endoscopy was repeated at the end of anesthesia, and recovery time was recorded. Pre- and post-SGAD placement endoscopy videos were retrospectively reviewed and scored for gross trauma.

Results

The median [interquartile range (IQR)] time to successful SGAD placement was 38 (16–68) seconds. The time to SGAD placement decreased as the study progressed. SGAD required repositioning in six hedgehogs, median 2.5 (IQR, 1–3.5) adjustments each, to successfully perform lung inflation or maintain capnography readings. Lung inflation at 10 cmH₂O was successfully performed without leakage in nine animals, and in the other three animals after adjusting the SGAD at 1–2 time points. Inflation at 20 cmH₂O was rarely achieved without an air leak. Changes in heart and respiratory rates during anesthesia were not clinically relevant. Median endoscopic scores were 0 (no lesions) for both pre-and postplacement.

Conclusions and clinical relevance

The SGAD was relatively quickly and easily placed, permitted lung inflation and caused no significant oropharyngeal damage. The SGAD is a practical option for airway management in African pygmy hedgehogs.

中文翻译：

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健康非洲侏儒刺猬 (Atelerix albiventris) 在吸入麻醉期间使用声门上气道装置的评估

客观的

评估在吸入麻醉期间为非洲侏儒刺猬 ( Atelerix albiventris ) 中的兔子设计的声门上气道装置 (SGAD) 。

学习规划

前瞻性、随机、盲法实验研究。

动物

一共12只成年非洲侏儒刺猬（七只雄性，五只雌性）。

方法

刺猬被放置在一个房间里，并在氧气中使用异氟醚进行麻醉。进行了口咽内窥镜检查并记录了视频。SGAD (v-gel R1) 被插入并连接到 Mapleson D 电路。在麻醉期间测量二氧化碳图、脉搏血氧饱和度和生理变量，并在 10 和 20 cmH ₂ O下测试肺膨胀。在 SGAD 暂时断开的情况下，将麻醉的刺猬随机置于左右侧卧、背侧和胸骨卧位以评估效果SGAD 放置时身体位置的变化。麻醉结束后复查口咽内镜，记录恢复时间。对 SGAD 放置前后的内窥镜视频进行回顾性审查，并对严重创伤进行评分。

结果

成功放置 SGAD 的中位 [四分位距 (IQR)] 时间为 38 (16–68) 秒。随着研究的进行，放置 SGAD 的时间减少了。SGAD 需要在六只刺猬中重新定位，每只调整中位数为 2.5（IQR，1-3.5），以成功执行肺膨胀或维持二氧化碳图读数。在 9 只动物中成功地进行了 10 cmH ₂ O 的肺充气，并且在其他三只动物中在 1-2 个时间点调整了 SGAD 后没有泄漏。在 20 cmH ₂ O 下的充气很少会在不漏气的情况下实现。麻醉期间心脏和呼吸频率的变化与临床无关。置入前和置入后的中位内窥镜评分均为 0（无病变）。

结论和临床相关性

SGAD 相对快速且容易放置，允许肺膨胀并且不会造成显着的口咽损伤。SGAD 是非洲侏儒刺猬气道管理的实用选择。