Construction of porcine DCD marginal donor model and pathological observation of donor kidney

Xiangfeng LIU; Qian CHEN; Zhigang QIN; Ziheng YANG; Yirong LI; Jieyu LI; Zhengwei XUE; Renjun GAO; Xingtong CHEN; Yueming XU; Ya XIAO; Jianteng GU

doi:10.16016/j.2097-0927.202211138

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Construction of porcine DCD marginal donor model and pathological observation of donor kidney

Basic Medicine | 更新时间：2026-01-09

- Construction of porcine DCD marginal donor model and pathological observation of donor kidney
- Journal of Army Medical University Vol. 45, Issue 5, Pages: 426-432(2023)
- 作者机构：
  
  1.400038 重庆，陆军军医大学(第三军医大学)第一附属医院麻醉科
  2.400020 重庆，陆军第958医院麻醉科
  3.400037 重庆，陆军军医大学(第三军医大学)第二附属医院泌尿外科
- 作者简介：
- 基金信息：
  
  the Natural Science Foundation for Young Scholars of China(81801900);the General Program of Natural Science Foundation of Chongqing(cstc2018jcyjAX0007);the Talent Foundation of Army Medical University(XZ-2019-505-028)
- DOI：10.16016/j.2097-0927.202211138
  CLC： R-332;R322.61;R361
- Received：18 November 2022，
  
  Revised：2022-12-19，
  
  Published：15 March 2023
- 稿件说明：
移动端阅览
Xiangfeng LIU, Qian CHEN, Zhigang QIN, et al. Construction of porcine DCD marginal donor model and pathological observation of donor kidney[J]. Journal of Army Medical University, 2023, 45(5): 426-432.
DOI：

Xiangfeng LIU, Qian CHEN, Zhigang QIN, et al. Construction of porcine DCD marginal donor model and pathological observation of donor kidney[J]. Journal of Army Medical University, 2023, 45(5): 426-432. DOI： 10.16016/j.2097-0927.202211138.

摘要

目的

建立一种小香猪心脏死亡后器官捐献(donation after cardiac death，DCD) 供体模型，并对DCD供肾进行病理学评价。

方法

7只4~6月龄的雄性小香猪(13~17 kg)分为标准供体对照组(C组，

=3)和DCD组(

=4)，两组肌注苯巴比妥钠麻醉诱导后，建立耳缘静脉通道，行血压、心电图和氧饱和度(SaO

)监测，同时注射丙泊酚、舒芬太尼强化麻醉诱导效果。C组气管插管后机械通气，丙泊酚、瑞芬太尼和顺阿曲库铵维持麻醉，行开腹术摘取肾脏；DCD组静脉推注肝素(300 IU/kg)抗凝，后注射丙泊酚600 mg和顺阿曲库铵10 mg使猪心跳呼吸停止，待心停跳30 min时摘取肾脏。2组肾脏均切成小块组织，4%多聚甲醛固定，行石蜡包埋，采用HE染色，光镜下观察正常肾脏和DCD边缘供体肾脏的病理结果变化并进行组织损伤评分。

结果

DCD组共成功建模4只猪在注射过量麻醉药后SaO

下降至80%的平均时间为(3.25±1.89)min，心脏骤停平均时间为(7.75±3.10)min；热缺血30 min后获取的DCD边缘供肾与C组供肾相比，肾小管损伤评分增高(

0.05)，肾小球损伤评分均值增高，但差异无统计学意义。

结论

采用静脉注射过量丙泊酚和顺阿曲库铵的方法可有效建立猪DCD边缘供体模型。

Abstract

Objective

To construct a marginal donor model of porcine donation after cardiac death (DCD)

and evaluate the pathological alteration of DCD donor kidneys.

Methods

Seven male mini pigs (4~6 months old

13~17 kg) were divided into standard donor control group (C group

=3) and DCD group (

=4). After intramuscular injection with phenobarbital sodium

their auricular vein channels were established

then propofol and sufentanil were injected to enhance the anesthetic induction while blood pressure

electrocardiogram and oxygen saturation (SaO

) were monitored at the same time. Group C received mechanical ventilation after endotracheal intubation

and maintained anesthesia with propofol

remifentanil and cisatracurium

and the kidneys were harvested under laparotomy. In the DCD group

300 IU/kg heparin was injected intravenously for anticoagulation

followed by single bolus venous injection with 600 mg propofol and 10 mg cisatricurium to induce cardiac and respiratory arrest

and finally

the kidneys were harvested i

n 30 min after cardiac arrest. The kidneys in both groups were cut into small tissues

which were further fixed with 4% paraformaldehyde

embedded in paraffin wax and stained with HE for the pathological assessment and tissue damage scores under a optical microscope.

Results

The mean time for SaO

to decline to 80% was 3.25±1.89 min and the mean time for cardiac arrest was 7.75±3.10 min in the 4 pigs of DCD group after injection with overdose of anesthetics. Compared with the C group

the renal tubular injury score of DCD marginal donor kidney after suffering from warm ischemia for 30 min

was higher (

0.05)

and the mean score of glomerular injury was increased through no statistical difference.

Conclusion

Intravenous injection of excessive propofol and cisatracurium can effectively establish a porcine DCD marginal donor model.

关键词

Keywords

references

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