ObjectiveTo summarize and analyze the clinical characteristics of patients with acute diffuse lung changes and respiratory failure.MethodsThe clinical data of patients in the Department of Critical Care Medicine, Dazhou Central Hospital between January 2016 and December 2018 were retrospectively collected, whose main clinical manifestation was acute respiratory distress syndrome with acute onset (<3 weeks) and main imaging manifestation was diffuse changes in both lungs. The clinical characteristics of patients were summarized, and the causes of the disease were explored.ResultsA total of 65 patients with acute diffuse lung changes and respiratory failure were enrolled, including 42 males (64.6%) and 23 females (35.4%). The average age was (57.1±18.4) years, the average time from onset to treatment was (7.5±5.9) d, and the average length of stay in the intensive care unit was (8.9±4.1) d. A total of 23 cases died, with a case-fatality rate of 35.4%. Among the 65 patients, there were 50 case (76.9%) of infectious diseases, including 36 cases of bacterial infections (including 4 cases of tuberculosis), 8 cases of viral infections (all were H1N1 infections), and 6 cases of fungal infections (including 1 case of pneumocystis infection); and there were 15 cases (23.1%) of non-infectious diseases, including 4 cases of acute left heart failure, 2 cases of interstitial pneumonia, 2 cases of vasculitis, 1 case of myositis dermatomyositis, 1 case of aspiration pneumonia, 1 case of acute pulmonary embolism, 1 case of acute drug lung injury, 1 case of neurogenic pulmonary edema, 1 case of drowning, and 1 case of unknown origin.ConclusionsInfectious diseases are the main cause of acute diffuse lung changes and respiratory failure, while among non-infectious diseases, acute heart failure and immune system diseases are common causes.
目的 探讨弥漫性轴索损伤（diffuse axonal injury，DAI）的发病机制、临床特点、诊断及治疗方法，以提高治愈率，降低致残、致死率。 方法 回顾性分析200６年6月-2010年3月间65例临床诊断为DAI患者的受伤机制、临床特征、影像学表现、治疗及预后。 结果 DAI最常见原因为车祸伤70.7%，其次为坠落、坠物伤（10.7%），其他（18.6%）。按格拉斯哥昏迷分级（GCS）评分结果3~5分18例，6~8分15例，9~12分32例；治愈43例，轻残15例，中残8例，重残或植物生存7例，死亡7例。 结论 DAI具有诊断、治疗困难，预后差等特点，交通事故是导致DAI的主要原因，格拉斯哥昏迷分级（GCS）评分、昏迷时间和瞳孔变化是判定预后的重要指标。目前尚无特效治疗方法，由于80％以上患者往往是多发伤，故早期气管切开、呼吸机辅助呼吸、促醒、亚低温治疗、防治并发症、钙离子拮抗剂应用等综合治疗可显著改善预后。
Objetive To investigate the clinical characteristics, diagnosis, and treatment for diffuse alveolar hemorrhage. Methods The clinical data of 17 patients admitted to respiratory ICU with diffuse alveolar hemorrhage from July 1998 to May 2008 were reviewed. Results In the 17 cases, Wegener granulomatosis accounted for 6 cases, microscopic polyangiitis for 3 cases, systemic lupus erythematosis for 4 cases,mitral stenosis for 2 cases, and idiopathic pulmonary hemosiderosis for 1 cases. Clinical presentations included fever ( 76. 4% ) , hemoptysis( 47% ) , anaemia ( 100% ) , dyspnea ( 100% ) , hypoxaemia ( 100% ) ,and elevated total count of white blood cells ( 76. 4% ) . The titer of antineutrophil cytoplasmic antibody ( c-ANCA, p-ANCA) was 1∶( 46. 0 ±3. 7) , 1 ∶( 108. 0 ±16. 1) , respectively. Hemoglobin was ( 78. 0 ±2. 4) g/L. Bronchoalveolar lavage fluid presented with blood accounted for 35. 3% . Siderophages was found in all cases. Computed tomography showed areas of consolidation interspersed with areas of ground-glass attenuation and reticular interstitial opacities. Mortality was 29. 4% . Conclusions Diffuse alveolar hemorrhage is an acute life-threatening event. The clinical presentations of hemoptysis, dyspnea, and anaemia, and chest imaging studies provide clues to diagnosis of diffuse alveolar hemorrhage. Corticosteroids and immunosuppressive agents have proven effective in diffuse alveolar hemorrhage.
Objective To review the examination techniques and the current research progress of the magnetic resonance diffusion weighted-imaging (DWI) used in liver. Methods The recent and relevant literatures about the principles and the current study situation of liver DWI were scrutinized and analyzed retrospectively. In addition, the existing problems of liver DWI were discussed. Results DWI could demonstrate the normal and abnormal structure and function through measuring the diffusion motions of water molecule in the liver. With the improving technology and better understanding of diffusion dynamics, DWI has been used for the diagnosis and differential diagnosis for hepatic diseases. Conclusion DWI as a non-invasive examine method, may provide valuable functional information for clinical diagnosis and treatment.
ObjectiveTo observe the image characteristics of optical coherence tomography (OCT) in patients with primary vitreoretinal lymphoma (PVRL).MethodsA retrospective clinical study. Thirty-two eyes of 19 patients diagnosed with PVRL by vitreous pathology in the Department of Ophthalmology, Beijing Tongren Hospital from September 2016 to October 2019 were included in this study. There were 7 males and 12 females. The median age was 56 years. The mean time from symptom onset to final diagnosis was 6.1±3.8 months. The first diagnosis was uveitis in 12 cases (63.1%, 12/19), retinal vein occlusion in 2 cases (10.5%, 2/19), central retinal artery occlusion in 1 case (5.3%, 1/19), and suspected PVRL of camouflage syndrome in 4 cases (21.1%, 4/19). Routine ophthalmic examination and frequency-domain OCT examination were performed in all the patients, and typical images were stored for analysis. According to the examination results, PVRL OCT signs were divided into vitreous cells, inner retinal infiltration, outer retinal infiltration, retinal pigment epithelial (RPE) infiltration, sub-RPE infiltration, and subretinal fluid.ResultsVitreous cells were found in all eyes (100.0%, 32/32). RPE infiltrated were observed in 19 eyes (59.4%, 19/32), RPE infiltration in 16 eyes (50.0%, 16/32), outer retinal infiltration in 8 eyes (25.0%, 8/32), inner retinal infiltration in 16 eyes (50.0%, 16/32), and subretinal fluid in 4 eyes (12.5%, 4/32).ConclusionsPVRL OCT signs can involve vitreous and retinal anatomical levels, including vitreous cells, inner retinal infiltration, outer retinal infiltration, RPE infiltration, sub-RPE infiltration and subretinal fluid. The same patient can show multiple signs at the same time.
ObjectiveTo summarize the application of dual-energy CT scanning technology in the liver. MethodsTo search the relevant literatures at home and abroad, then the application of dual-energy CT scanning technology in focal liver lesions, diffuse liver lesions were analyzed and summarized. ResultsDual-energy CT scanning technology can improve detection rate of the focal liver lesions, liver cancer recurrence lesions after local treatment and help to differentiate focal liver lesions, to stage the malignant lesions, and it also can be more accurate quantification of liver iron, fat content, indirect measurement of hepatic blood flow dynamics change situation. ConclusionDual-energy CT scanning technology can improve the diagnostic value of CT scanning technology in liver disease.
ObjectiveTo investigate the clinical manifestations, imaging manifestations, etiology, histological origin, pathological characteristics, diagnosis and differential diagnosis, selection of treatment methods, and prognosis of primary diffuse large B cell lymphoma of livers (PDLBCLL), so as to improve understanding and reasonable diagnosis and treatment of this kind of disease.MethodThe clinicopathologic data of a case of PDLBCLL diagnosed in the West China Hospital of Sichuan University in June 2019 were analyzed retrospectively.ResultsIt was very difficult to diagnose PDLBCLL preoperatively and to distinguish PDLBCLL from primary liver cancer and other liver space occupying lesions. It was also easy to ignore the possibility of invasion of liver by lymphopoietic tissue tumor, which was often diagnosed by postoperative pathological diagnosis or puncture biopsy, and after the elimination of hematological diseases by various examinations. This patient was admitted to the hospital as a space occupying in right liver. Preoperative imaging examination considered that may be a tumor. After MDT discussion, considering that the nature of the tumor should be confirmed by surgical resection, and then go to the Department of Oncology. Irregular right hemihepatectomy + cholecystectomy + hilar lymphadenectomy + diaphragmatic repair was performed after MDT discussion. The diagnosis of PDLBCLL was confirmed by postoperative pathological examination. The operation duration was about 230 min, and the intraoperative blood loss was about 200 mL. The patient recovered well without complications and was discharged on the 10th day after operation. The patient was followed up for 9 months. The liver and kidney function, electrolytes and abdominal Doppler ultrasound examination were regularly reviewed every month. No obvious abnormality was found in these results.ConclusionsAt present, there is no unified treatment principle, most of them will undergo surgery, chemotherapy, radiotherapy or combined treatment. Due to its unknown etiology and unclear mechanism, clinicians can only implement individualized treatment according to the characteristics of patients’ conditions.