Introduction

Down syndrome is the most common chromosomal abnormality associated with intellectual impairments. Unexpected deaths are common with this disease. There are certain difficulties in clarifying the cause of death because the manifestations may be quite diverse and involve many organ systems. Atlantoaxial subluxation is a dangerous complication of Down syndrome, as it may lead to cervical cord-medullary compression.

Case presentation

Herein, we present a case of Down syndrome in a patient who completely recovered from cardiac arrest due to atlantoaxial subluxation. The neck was immobilized during post-cardiac arrest care, and the patient underwent surgery after 14 days. The patient could walk independently and was discharged 3 months later. At the last follow-up 5 years after surgery, the patient’s general condition was good.

Discussion

Physicians should be aware that atlantoaxial instability can cause cardiac arrest in patients with genetic syndromes.

中文翻译：

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唐氏综合症寰枢椎半脱位导致心脏骤停成功康复：病例报告

 介绍

唐氏综合症是与智力障碍相关的最常见的染色体异常。这种疾病导致意外死亡的情况很常见。由于表现可能相当多样且涉及许多器官系统，因此澄清死因存在一定的困难。寰枢椎半脱位是唐氏综合症的危险并发症，因为它可能导致颈髓髓质受压。

 案例展示

在此，我们介绍一例唐氏综合症患者，该患者因寰枢椎半脱位而从心脏骤停中完全康复。在心脏骤停后的护理过程中，颈部被固定，14 天后患者接受了手术。患者已能独立行走，3个月后出院。术后5年最后一次随访时，患者一般状况良好。

 讨论

医生应该意识到寰枢椎不稳定可能导致遗传综合征患者心脏骤停。