ObjectiveTo analyze the clinical and epidemiological characteristics of hospitalized avian influenza A (H7N9) virus infections in Hunan province from 2013 to 2017, and provide evidences for control, diagnosis and treatment of this disease.MethodsNinety-one hospitalized patients were confirmed with H7N9 infection in Hunan. Excluding 2 patients less than 18 years old and 10 with missing data, 79 patients with H7N9 infection were analyzed.ResultsMost confirmed cases were affected in the second and fifth epidemic wave and number of patients in the fifth wave was more than the sum in prior 4 waves. Epidemiological characteristics, clinical symptoms and case fatality did not change significantly. Administration of antiviral drugs was more active in the fifth wave [from illness onset to antiviral drug: (6.3±2.4)d vs. (7.6±2.4)d, P=0.047]. Multiple logistic regression analysis showed that shock (OR=4.683, 95%CI 1.136–19.301, P=0.033) was the independent risk factor of H7N9 infections. There were no significant differences in case fatality among group oseltamivir, group oseltamivir+peramivir, and group peramivir.ConclusionsPatients with avian influenza A (H7N9) increased in the fifth wave but clinical characteristics changed little. Antiviral treatment should be more active. Shock is an independent risk factor of H7N9 infections. Oseltamivir-peramivir biotherapy can not reduce case fatality compared with oseltamivir or peramivir monotherapy.
ObjectiveTo investigate the clinical characteristics of non-tuberculous mycobacterium (NTM) pulmonary disease and pulmonary tuberculosis, as well as the bacterial distribution of NTM pulmonary disease. Methods The bacterial distribution and clinical characteristics of 104 patients with NTM lung disease hospitalized in Jiangxi Provincial People’s Hospital from May 2017 to May 2020 were retrospectively analyzed, as well as the clinicplal characteristics of 155 patients with tuberculosis hospitalized during the same period. Results The age of NTM lung disease group [(60±15) years] was higher than that of tuberculosis group [(55±19) years]. There were statistically significant differences in basic diseases (such as malignant tumor, type 2 diabetes, old tuberculosis, bronchiectasis), laboratory examination (such as blood routine examination, albumin) and chest imaging characteristics between the two groups (P<0.05). There was no significant difference in clinical symptoms (such as cough, sputum or fever) (P>0.05). The common underlying diseases of NTM lung disease were malignant tumor (29%), bronchiectasis (21%), chronic obstructive pulmonary disease (19%), etc. The common clinical symptoms of NTM lung disease included cough, sputum, fever, hemoptysis, chest tightness and shortness of breath, and other non-specific respiratory symptoms. The common manifestations of NTM lung disease on chest high-resolution CT (HRCT) included patchy images (82%), mediastinal lymph node enalargement (35%), pleural thickening (31%), pleural effusion (26%) and other signs. The isolates of NTM included Mycobacterium avium (50%), Mycobacterium intracellulare (21%), Mycobacterium chelonae/abscessus (14%), Mycobacterium fortuitum (5%), Mycobacterium gordonae (4%), Mycobacterium gilvum (3%), and Mycobacterium smegmatis (3%). Multivariate Logistic regression analysis showed that advanced age (OR=1.027) was a risk factor for NTM lung disease. Conclusions The clinical manifestations of NTM lung disease and tuberculosis are similar and difficult to distinguish. For male patients over 60 years old with malignant tumor, old tuberculosis, bronchiectasis and other basic diseases, and the chest HRCT findings are mainly bronchiectasis, NTM lung disease should be actively excluded. There is little difference in clinical manifestations between different strains of NTM lung disease, and the treatment cycle of NTM lung disease is long and easy to be interrupted, requiring enhanced follow-up.
【摘要】 目的 探讨脑后部可逆性脑病综合征（posterior reversible encephalopathy syndrome，PRES）的临床及MRI表现，提高对PRES的认识。 方法 回顾性分析2007年1月-2010年12月期间5例PRES患者的MRI资料并进行追踪随访。5例PRES患者中男1例，女4例，肾性高血压及产后子痫各1例、妊娠高血压3例。5例均行MRI多序列平扫检查及弥散加权成像（diffusion weighted imaging，DWI），其中4例同时行磁共振血管造影（magnetic resonance angiography，MRA），2例行MRI增强检查。 结果 5例发病时均有高血压，以突发头痛、子痫或癫痫发作、意识障碍及视觉障碍为临床特点，及时正确治疗后症状于3~5 d左右消失，1例遗留肢体功能障碍。MRI显示5例多发病灶主要位于双侧顶枕叶皮质下白质内，额叶及颞叶后部各2例，两侧小脑及脑干1例，皮质受累2例，病变呈长T1、长T2信号、液体衰减反转恢复序列呈高信号，5例患者病灶DWI图呈高或等信号，表观弥散系数（apparent diffusion coefficient，ADC）图呈略高信号；1例顶叶及1例基底节区部分病灶DWI图呈高信号，ADC图呈低信号，提示弥散受限。2例增强无强化，脑膜呈线状强化。随访MRI显示3例病灶完全消失。1例左侧基底节区部分病灶发展为脑梗死。 结论 PRES是一种临床-影像综合征，正确认识这一综合征对其早期诊断和治疗具有非常重要的意义。MRI能够提供较为可靠明确的诊断，其扩散成像对判断PRES预后亦很有价值。【Abstract】 Objective To investigate the clinical features and MRI manifestations of patients with posterior reversible encephalopathy syndrome (PRES), in order to improve its recognition. Methods From January 2007 to December 2010, MRI data of 5 patients with PRES were retrospectively analyzed and the patients were followed up. Among them, one was male and four were female. There were one case of postpartum eclampsia, one of renal hypertention, and 3 of pregnancy-induced hypertension. All the five patients were examined by MRI diffusion weighted imaging (DWI), among whom four underwent additional magnetic resonance angiography (MRA) and one underwent enhanced MRI. Results All the five patients with PRES had hypertension and their clinical symptoms were characterized by sudden occurrence of headache, eclampsia or seizure of epilepsy, altered mental status, and visual disturbances. Clinical symptoms vanished about 3-5 days after prompt and appropriate treatment except one case of residual body function failure. MRI scanning demonstrated multifocal subcortical white lesions in bilateral parieto-occipital lobes in five patients, in bilateral frontal lobes in two patients, in bilateral post temporal lobes in two patients, in bilateral cerebellum in one patient, and in bilateral brainstem in one patient, and cortical involvement occurred in one patient. Lesions appeared as hyperintense signals on fluid attenuated inversion recovery (FLAIR) and T2-weighted images, hypointense signals on T1-weighted images, normal or increased intensity on DWI, and mild hypointensity on apparent diffusion coefficient (ADC) maps. Some lesions in parietal lobes or basal ganglia showed hyperintensity on DWI and isointensity on ADC maps. The lesions in two patients appeared unenhanced with gadolinium enhancement and the meninges assumed the linear strengthening. Follow-up MRI showed that foci in three patients vanished completely, and the focus in the left basal ganglia in one patient developed into cerebral infarction. Conclusions PRES is a clinical-neuroradiological transient condition. Correctly understanding this syndrome is meaningful for its early diagnosis. MRI can provide a more reliable diagnosis, and its proliferation image formation is also valuable in predicting the PERS prognosis.
Objective To describe the disease characteristics of osteonecrosis of the femoral head (ONFH) in patients with systemic lupus erythematosus (SLE) who experiencing prolonged glucocorticoid (GC) exposure. Methods Between January 2016 and June 2019, 449 SLE patients meeting the criteria were recruited from multiple centers. Hip MRI examinations were performed during screening and regular follow-up to determine the occurrence of ONFH. The cohort was divided into ONFH and non-ONFH groups, and the differences in demographic baseline characteristics, general clinical characteristics, GC medication information, combined medication, and hip clinical features were compared and comprehensively described. ResultsThe age at SLE diagnosis was 29.8 (23.2, 40.9) years, with 93.1% (418 cases) being female. The duration of GC exposure was 5.3 (2.0, 10.5) years, and the cumulative incidence of SLE-ONFH was 9.1%. Significant differences (P<0.05) between ONFH and non-ONFH groups were observed in the following clinical characteristics: ① Demographic baseline characteristics: ONFH group had a higher proportion of patients with body mass index (BMI)<20 kg/m2 compared to non-ONFH group. ② General clinical characteristics: ONFH group showed a higher proportion of patients with cutaneous and renal manifestations, positive antiphospholipid antibodies (aPLs) and anticardiolipin antibodies, severe SLE patients [baseline SLE Disease Activity Index 2000 (SLEDAI-2K) score ≥15], and secondary hypertension. Fasting blood glucose in ONFH group was also higher. ③ GC medication information: ONFH group had higher initial intravenous GC exposure rates, duration, cumulative doses, higher cumulative GC doses in the first month and the first 3 months, higher average daily doses in the first 3 months, and higher proportions of average daily doses ≥15.0 mg/d and ≥30.0 mg/d, as well as higher full-course average daily doses and proportion of full-course daily doses ≥30.0 mg/d compared to non-ONFH group. ④ Combined medications: ONFH group had a significantly higher rate of antiplatelet drug use than non-ONFH group. ⑤ Hip clinical features: ONFH group had a higher proportion of hip discomfort or pain and a higher incidence of hip joint effusion before MRI screening than non-ONFH group. Conclusion The incidence of ONFH after GC exposure in China’s SLE population remains high (9.1%), with short-term (first 3 months), medium-to-high dose (average daily dose ≥15 mg/d) GC being closely associated with ONFH. Severe SLE, low BMI, certain clinical phenotypes, positive aPLs, and secondary hypertension may also be related to ONFH.
Objective To explore the clinical and inflammatory characteristics and risk factors of severe asthma to improve clinicians' awareness of the disease. Methods The general information of patients with asthma who visited the Department of Respiratory Medicine, the First Hospital of Shanxi Medical University from May 2018 to May 2021, as well as the diagnosis and treatment of asthma, personal history, comorbidities, auxiliary examination, asthma control test (ACT) score were collected. A total of 127 patients were included, including 40 in the severe asthma group and 87 in the mild-to-moderate asthma group. Chi-square test, independent sample t test and logistic regression were used to analyze the clinical characteristics, inflammatory markers and risk factors of severe asthma. Results Compared with the patients with mild to moderate asthma, the patients with severe asthma were more older (51.0±12.0 years vs 40.7±12.8 years, P<0.05), had more smokers (32.5% vs. 14.9%, P<0.05), and more males (67.5% vs. 40.2%, P<0.05). The patients with severe asthma got poor FEV1%pred [(56.1±23.8)% vs. (93.2±18.0)%, P<0.05] and FEV1/FVC [(56.7±13.2)% vs. (75.8±9.0)%, P<0.05)], and more exacerbations in the previous year (2.7±3.1 vs. 0.1±0.4, P<0.05), lower ACT score (14.4±3.7 vs. 18.0±5.0, P<0.05), and higher blood and induced sputum eosinophil counts [(0.54±0.44)×109/L vs. (0.27±0.32)×109/L, P<0.05; (25.9±24.2)% vs. (9.8±17.5)%, P<0.05]. There was no significant difference in the proportion of neutrophils in the induced sputum or FeNO between the two groups (P>0.05). Analysis of related risk factors showed that smoking (OR=2.740, 95%CI 1.053 - 7.130), combined with allergic rhinitis (OR=14.388, 95%CI 1.486 - 139.296) and gastroesophageal reflux (OR=2.514, 95%CI 1.105 - 5.724) were risk factors for severe asthma. Conclusions Compared with patients with mild to moderate asthma, patients with severe asthma are characterized by poor lung function, more exacerbations, and a dominant eosinophil inflammatory phenotype, which is still poorly controlled even with higher level of treatment. Risk factors include smoking, allergic rhinitis, and gastroesophageal reflux, etc.
目的:探讨成人麻疹的流行病学与临床特征。方法:回顾性分析196例成人麻疹的临床资料。结果:患者以外来流动人员及本地农村人口多见,平均年龄26.78岁,多数患者未接种麻疹疫苗或麻疹疫苗史不详。成人麻疹患者临床症状重,皮疹典型,为充血性斑丘疹,麻疹黏膜斑(Koplik’s spots)明显,且持续时间长,可合并肝脏和心肌损伤,但并发症以肺炎和支气管炎为主。结论:有必要加强成人的免疫接种,尤其是外来的务工人员,强化医务人员对麻疹的认识,避免麻疹的流行。
ObjectiveTo retrospectively study the acute epileptic seizures of patients with anti-N-methyl-D-aspartate receptor (anti-NMDAR)and anti-leucine-rich glioma-inactivated 1(anti-LGI1)encephalitis. The characteristics and short-term prognosis provide reference for early clinical diagnosis and treatment.MethodsThe patients with anti-NMDAR and anti-LGI1 encephalitis who were admitted to the Department of Neurology of Sichuan Provincial People’s Hospital from January 2018 to June 2020 were continuously included. The general information, clinical manifestations, acute seizures and types of seizures were reviewed and analyzed.To evaluate the difference between the characteristics of two kinds of autoimmune encephalitis in the acute phase of seizures and the short-term prognosis.ResultsA total of 75 patients with anti-NMDAR encephalitis and anti-LGI1 encephalitis (41 males and 34 females) were included, of which average ages are(32.8±17.9)years, average courses are(1.8±1.1)months.59 and 16 are respectively positive for anti-NMDAR and anti-LGI1 antibodies, respectively. Of the 75 cases, 56 cases (74.7%) had seizures in the acute phase. Among the 56 cases of seizures, 38 cases (67.8%) were accompanied by disturbances of consciousness, 5 cases (8.9%) of autonomic dysfunction, and 24 cases of decreased oxygenation capacity. (42.9%) and 20 cases (35.7%) who were admitted to NICU, there was a significant statistical difference compared with the seizure-free group (P<0.05). The median age of anti-NMDAR encephalitis in the acute stage of seizures was 23 years, and that of anti-LGI1 encephalitis was 56.5 years (P<0.05). Anti-NMDAR encephalitis and anti-LGI1 encephalitis are common in the acute phase of epileptic seizures (55.9%vs.53.8%). Anti-NMDAR encephalitis has more frequent seizures and status epilepticus in the acute phase (P<0.05). After early and rational use of anti-epileptic drugs(AEDs) and immunotherapy and other symptomatic and supportive treatments, 70% of 56 patients were effectively controlled for seizure. Follow-up 3 months later, 18 patients (32.1%) stopped using anti-epileptic drugs (AEDs), While 30 patients (53.5%) continued to receive AEDs treatment, of which 25 patients (44.6%) had no seizures.ConclusionBoth anti-NMDAR encephalitis and anti-LGI1 encephalitis have a higher risk of seizures in the acute phase. Patients with seizures are more likely to have disturbances in consciousness, decreased oxygenation capacity, and higher rates of admission to NICU. Anti-NMDAR encephalitis is more common in young people around 30 years old, and anti-LGI1 encephalitis is more likely to develop around 60 years old. Patients with anti-NMDAR encephalitis are more likely to have abnormal electroencephalograms, have a longer average hospital stay, and are more likely to have recurrent seizures and status epilepticus in the acute phase. After timely diagnosis and intervention treatment, most patients' seizures can be well controlled. After the acute phase, AEDs can be withdrawed in one third of patients.
Objective To summarize the clinical characteristics of interstitial pneumonia with autoimmune features (IPAF). Methods The interstitial lung disease (ILD) patients diagnosed in our department between January 2010 and August 2013 were retrospectively analyzed to screen out the patients with IPAF.The clinical manifestations, laboratory examination, imaging, pulmonary function and treatment were summarized. Results In 254 ILD patients, 25 patients met the diagnosis criteria of IPAF, and 26 patients were diagnosed with definite connective tissue diseases associated ILD (DCTD-ILD). There were differences in arthralgia, sicca symptoms, mechanic’s hand, positive antinuclear antibodies, anti-CCP antibodies and residual lung volume between the IPAF patients and the DCTD-ILD patients (all P < 0. 05). Five IPAF patients were revealed hug or “pancake” the diaphragm in their chest high resolution CT radiographs. The microscopic performance showed that diffuse thickened with collagen fiber, alveolar wall thickening with marked interstitial lymphocyte inflammatory cells infiltration, and granulation tissue that filled bronchiolar lumina. The patients were pathologically diagnosed with nonspecific interstitial pneumonia (NSIP) overlap organized pneumonia (OP). During following-up, the progression-free survival time of the IPAF patients was significant longer and that of the DCTD-ILD patients [(14.32±5.74)months vs. (10. 31± 3. 70) months, P < 0. 05]. Conclusions If an ILD patient has mechanic’s hand, positive antinuclear antibodies or NISP overlap OP in image, the diagnosis of IPAF should be considered. IPAF have slower disease progression and better prognosis than DCTD-ILD.
ObjectiveTo analyze the clinical characteristics and geographical distribution of Keshan disease in Chongqing city for prevention and disease control. MethodsWe collected the clinical data of patients with Keshan disease from 2008 to 2012 in Liangping, Shizhu, Fengdu and Dianjiang counties as well as Wanzhou district of Chongqing city including the medical history, physical examination, results of laboratory tests to analyze the clinical characteristics and geographical distribution. ResultsFifty-eight patients were included from Liangping (n=21), Shizhu (n=25), Fengdu (n=11) and Dianjiang (n=1). The number of patients with potential and chronic Keshan disease was 16 and 42, respectively. The average age of patients was 54.91±15.53 years. The proportion above age 60 was 32.76% and below age 10 was 3.45%. The patients had main clinical signs as heart enlargement (36.76%), low-weak first heart sound (22.41%), systolic murmur (10.34%), arrhythmia (8.62%), etc. Abnormal ECG detection rate was 98.28%, with common types followed by sinus rhythm (37.93%), complete right bundle branch block (25.86%), ST-T changes (24.14%), left ventricular hypertrophy (15.52%), atrial fibrillation (13.79%), occasional ventricular premature (10.34%), T changes (10.34%), sinus bradycardia (8.62%), and incomplete right bundle branch block (6.90%). X-ray results showed that heart enlargement accounted for 82.76%. The ratios of mild, moderate and significant expansion of the heart were 46.55%, 27.59%, and 8.62%, respectively. ConclusionIn recent years, most patients with Keshan disease in Chongqing are chronic type at older age. The main clinical symptom is heart enlargement with high abnormal ECG detection rate.