目的 探讨呋喃唑酮所致间质性肺疾病（ILD）的临床特征。 方法 收集2022年4月1日至2023年4月1日在华中科技大学协和深圳医院呼吸科住院治疗的7例呋喃唑酮相关ILD患者（医院病例）的基本信息、药物治疗信息、ILD特征及治疗和转归进行回顾性分析。检索国内外相关数据库，收集呋喃唑酮相关ILD病例报告（文献病例）中文献基本信息，涉及患者的基本信息，呋喃唑酮治疗适应证、剂量，相关ILD的潜伏期、主要症状、实验室检查及辅助检查结果，进行描述性统计分析。 结果 7例医院病例中男性2例、女性5例，中位年龄34岁，均因患幽门螺杆菌（HP）相关胃炎应用含呋喃唑酮（0.2 g、1次/d）的铋剂四联方案治疗。从服药至出现临床症状的中位时间为10 d；所有患者均有发热，6例有呼吸系统症状（干咳、呼吸困难、胸痛等）；胸部影像学检查均符合ILD改变，其中1例有胸腔积液。7例患者的嗜酸粒细胞计数均正常，1例有轻度的低氧血症。ILD严重程度6例为2级，1例为3级。7例患者均停用呋喃唑酮片，4例使用了糖皮质激素。住院3~10 d，7例患者均获痊愈。共检索到18例呋喃唑酮相关ILD的文献病例，其中15例来自中国，14例用于治疗HP感染。从首次用药到出现临床症状的时间为2~14 d，其中13例时间>7 d。16例患者有发热症状，14例有呼吸系统症状，其中1例呼吸衰竭。12例患者末梢血嗜酸粒细胞计数或百分比升高。18例患者均停用呋喃唑酮，7例使用了糖皮质激素，1例接受呼吸机辅助通气；所有患者均好转或痊愈。2例患者再激发阳性，1例体外淋巴细胞转化试验对呋喃唑酮呈强阳性反应。 结论 ILD是呋喃唑酮的罕见不良反应，以发热和呼吸系统症状为主要表现，多发生在呋喃唑酮治疗7 d后，早期发现并及时停药治疗一般预后良好。 Objective To explore the clinical characteristics of interstitial lung disease (ILD) caused by furazolidone. Methods Clinical data of 7 patients with furazolidone-related ILD (hospital cases) hospitalized in the Department of Respiratory Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital from April 1, 2022 to April 1, 2023 were collected and retrospectively analyzed, including patient basic information, medication treatments, and characteristics, treatment and outcomes of ILD. Relevant databases at home and abroad were searched, and case reports of furazolidone-related ILD (literature cases) were collected. The basic information of literature, involving patient information, indications and treatment doses of furazolidone, as well as the latentperiod, main symptoms, laboratory tests, and auxiliary examination related to ILD was descriptively analyzed. Results Among the 7 hospital cases, 2 were males and 5 were females, with a median age of 34 years. All patients were treated with a bismuth quadruple therapy containing furazolidone (0.2 g, once daily) due to Helicobacter pylori (HP)-associated gastritis. The median time from taking medicine to the onset of clinical symptoms of interstitial lung disease was 10 days. All patients had fever, and 6 had respiratory symptoms (dry cough, dyspnea, chest pain, etc.). ILD changes were found in all patients in their chest imaging, and pleural effusion was also found in 1 patient. Seven patients had normal eosinophil counts, and 1 had mild hypoxemia. The severity of ILD was grade 2 in 6 patients and grade 3 in 1 patient. All 7 patients stopped using furazolidone, and 4 received glucocorticoids additionally. After the hospitalization of 3-10 days, all the 7 patients recovered. Eighteen literature cases of furazolidone-related ILD were retrieved, of which 15 were from China and 14 used furazolidone to treat HP infection. The time from taking medicine to the onset of clinical symptoms was 2-14 days, and the time was >7 days in 13 patients. Sixteen patients had fever, 14 had respiratory symptoms, and 1 had respiratory failure. The peripheral blood eosinophil count or percentage increased in 12 patients. All 18 patients stopped using furazolidone 7 received glucocorticoids and 1 received ventilator assisted ventilation. All patients recovered or were improved. ILD recured in rechallenge with furazolidone in 2 patients, and 1 of them had a strong positive reaction to furazolidone in vitro lymphocyte transformation test. Conclusions ILD is a rare adverse reaction of furazolidone, main manifests as fever and respiratory symptoms and mostly occurs 7 days after furazolidone treatment. Early detection and timely withdrawal of furazolidone generally lead to a good prognosis.
Furazolidone-induced interstitial lung disease: a case series analysis and literature review
Objective To explore the clinical characteristics of interstitial lung disease (ILD) caused by furazolidone. Methods Clinical data of 7 patients with furazolidone-related ILD (hospital cases) hospitalized in the Department of Respiratory Medicine, Huazhong University of Science and Technology Union Shenzhen Hospital from April 1, 2022 to April 1, 2023 were collected and retrospectively analyzed, including patient basic information, medication treatments, and characteristics, treatment and outcomes of ILD. Relevant databases at home and abroad were searched, and case reports of furazolidone-related ILD (literature cases) were collected. The basic information of literature, involving patient information, indications and treatment doses of furazolidone, as well as the latentperiod, main symptoms, laboratory tests, and auxiliary examination related to ILD was descriptively analyzed. Results Among the 7 hospital cases, 2 were males and 5 were females, with a median age of 34 years. All patients were treated with a bismuth quadruple therapy containing furazolidone (0.2 g, once daily) due to Helicobacter pylori (HP)-associated gastritis. The median time from taking medicine to the onset of clinical symptoms of interstitial lung disease was 10 days. All patients had fever, and 6 had respiratory symptoms (dry cough, dyspnea, chest pain, etc.). ILD changes were found in all patients in their chest imaging, and pleural effusion was also found in 1 patient. Seven patients had normal eosinophil counts, and 1 had mild hypoxemia. The severity of ILD was grade 2 in 6 patients and grade 3 in 1 patient. All 7 patients stopped using furazolidone, and 4 received glucocorticoids additionally. After the hospitalization of 3-10 days, all the 7 patients recovered. Eighteen literature cases of furazolidone-related ILD were retrieved, of which 15 were from China and 14 used furazolidone to treat HP infection. The time from taking medicine to the onset of clinical symptoms was 2-14 days, and the time was >7 days in 13 patients. Sixteen patients had fever, 14 had respiratory symptoms, and 1 had respiratory failure. The peripheral blood eosinophil count or percentage increased in 12 patients. All 18 patients stopped using furazolidone 7 received glucocorticoids and 1 received ventilator assisted ventilation. All patients recovered or were improved. ILD recured in rechallenge with furazolidone in 2 patients, and 1 of them had a strong positive reaction to furazolidone in vitro lymphocyte transformation test. Conclusions ILD is a rare adverse reaction of furazolidone, main manifests as fever and respiratory symptoms and mostly occurs 7 days after furazolidone treatment. Early detection and timely withdrawal of furazolidone generally lead to a good prognosis.
FurazolidoneLung diseases, interstitialDrug-related side effects and adverse reactionsHelicobacter pylori
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