# Clinical characteristics of HHV-6 infection after allogeneic hematopoietic stem cell transplantation

**Authors:** 莉 黄, 婷婷 韩, 芳芳 魏, 晓甦 赵, 于谦 孙, 晓冬 莫, 萌 吕, 翼飞 程, 兰平 许, 晓辉 张, 晓军 黄, 昱 王

PMC · DOI: 10.3760/cma.j.cn121090-20240831-00330 · Chinese Journal of Hematology · 2024-11-01

## TL;DR

This study examines the clinical features of HHV-6 infection in patients after stem cell transplants and finds that symptoms like fever and rashes are common, but virus levels and antiviral treatment don't strongly affect outcomes.

## Contribution

The study identifies common clinical manifestations of HHV-6 post-transplant and evaluates the impact of viral load and antiviral treatment on outcomes.

## Key findings

- HHV-6 infection after allo-HSCT commonly presents with fever, rashes, and diarrhea.
- Viral load does not significantly correlate with clinical symptoms or outcomes.
- Antiviral treatment does not significantly affect HHV-6 clearance time or survival rates.

## Abstract

分析异基因造血干细胞移植（allo-HSCT）后100 d内人类疱疹病毒6型（HHV-6）激活的临床表现，研究HHV-6病毒载量对临床表现的影响及抗病毒治疗对HHV-6激活转归的影响。

回顾性研究2016年2月至2023年2月在北京大学血液病研究所接受allo-HSCT后100 d内HHV-6阳性的患者，分析患者的年龄、移植类型等基本特征以及临床表现，同时对移植后合并症等情况进行分析。

研究纳入305例HHV-6感染患者，HHV-6检测阳性中位时间为移植后20 d。有15例患者无症状，其余患者根据临床表现发生率由高到低依次是：发热、皮疹、腹泻、出血性膀胱炎、血小板延迟植入、中枢神经系统症状、腹痛、肺炎和口周麻木。189例患者合并急性GVHD（其中45例HHV-6感染发生在急性GVHD之前，120例HHV-6感染发生在急性GVHD之后）。45例患者有HHV-6定量检测结果，病毒滴度高低在临床表现中差异无统计学意义。108例（35.41％）患者存在与其他病毒共激活情况，合并感染的病毒包括巨细胞病毒、BK病毒、EB病毒等，其中合并EB病毒激活是影响总生存（OS）的独立危险因素。抗病毒治疗与未抗病毒治疗组患者HHV-6转阴时间差异无统计学意义［7（5～10）d对8（4～14）d，P＝0.199］，5年OS率差异也无统计学意义［（82.7±2.6）％对（91.3±3.1）％，χ2＝3.304，P＝0.069］。

allo-HSCT后HHV-6感染患者临床表现以发热、皮疹和腹泻多见，与病毒滴度高低无明显相关性，且是否抗病毒治疗在HHV-6转阴时间与移植后5年OS率中未见显著性差异。

## Linked entities

- **Diseases:** acute GVHD (MONDO:0020546)

## Full-text entities

- **Diseases:** pneumonia (MESH:D011014), perioral numbness (MESH:D006987), central nervous system symptoms (MESH:D002493), rash (MESH:D005076), hemorrhagic cystitis (MESH:D006470), HHV-6 infection (MESH:C538117), Acute graft-versus-host disease (MESH:D006086), diarrhea (MESH:D003967), abdominal pain (MESH:D015746), fever (MESH:D005334)
- **Species:** human gammaherpesvirus 4 (Epstein Barr virus, no rank) [taxon 10376], Homo sapiens (human, species) [taxon 9606], Cytomegalovirus (genus) [taxon 10358], Betapolyomavirus hominis (species) [taxon 1891762]

## Full text

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## References

34 references — full list in the complete paper: https://tomesphere.com/paper/PMC11886688/full.md

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Source: https://tomesphere.com/paper/PMC11886688