Necrotizing enterocolitis (NEC), with the main manifestations of bloody stool, abdominal distension, and vomiting, is one of the leading causes of death in neonates, and early identification and diagnosis are crucial for the prognosis of NEC. The emergence and development of machine learning has provided the potential for early, rapid, and accurate identification of this disease. This article summarizes the algorithms of machine learning recently used in NEC, analyzes the high-risk predictive factors revealed by these algorithms, evaluates the ability and characteristics of machine learning in the etiology, definition, and diagnosis of NEC, and discusses the challenges and prospects for the future application of machine learning in NEC.
Infant, Newborn ; Humans ; Enterocolitis, Necrotizing/therapy* ; Infant, Newborn, Diseases ; Prognosis ; Gastrointestinal Hemorrhage/diagnosis* ; Machine Learning

Humans ; Lupus Erythematosus, Systemic/diagnosis* ; Hemorrhage/etiology* ; Lung Diseases/etiology* ; Pulmonary Alveoli

Objective: To explore the clinical value of von Willebrand Factor (vWF) and VITRO score (vWF:Ag/platelet count) in assessing disease progression in patients with HBV infection. Methods: Randomly collect relevant clinical data of 308 patients with HBV infection (including 154 cases of chronic hepatitis B, 66 cases of hepatitis B cirrhosis in compensatory period, 88 cases of hepatitis B cirrhosis in decompensated period) from December 1, 2018 to January 5, 2021 in the Second Affiliated Hospital of Chongqing Medical University. The vWF values are measured by a uniform optical method, and all data are included using a uniform standard. Analyze the difference and significance of plasma vWF level and VITRO score in chronic hepatitis B, hepatitis B cirrhosis in the compensatory phase and decompensated phase. Results: The plasma vWF level and VITRO score of the chronic hepatitis B group were (139.47±76.44) and (0.86±0.8), respectively, and the hepatitis B cirrhosis compensated group was (164.95±67.12 and 1.44±1.14), respectively. Hepatitis cirrhosis decompensated group were (317.48±103.32 and 6.81±4.98), respectively; plasma vWF level and VITRO score increased with the progression of HBV infection, and the difference was statistically significant (F=133.669,P=0.000F=137.598,P=0.000).The plasma vWF level and VITRO score in patients with hepatitis B cirrhosis were (185.65±85.07 and 2.3±2.37) in the Child-Pugh A group, (304.74±105.81 and 6.37±5.19) in the B grade group, and (369.48±73.238.28±5.38) in the C grade group; plasma vWF level and VITRO score in patients with hepatitis B cirrhosis increased with the increase of Child-Pugh grade, and the difference was statistically significant (F=60.236, P=0.000F=32.854, P=0.000). The area under the curve (AUC) of plasma vWF level and VITRO score for diagnosing the decompensated stage of hepatitis B cirrhosis were 0.897 [95% confidence interval (CI): 0.855-0.940, P＜0.01], 0.949 [95% CI: 0.916-0.982, P＜0.01). When the vWF level and VITRO score were taken as cut-off values of 238.5% and 1.65, respectively, the sensitivity of diagnosing the decompensated stage of hepatitis B cirrhosis was 79.5% and 94.3%, the specificity was 92.3% and 87.7%, and the positive predictive value was 80.5% and 94.3%, the negative predictive value was 91.9% and 97.5%, and the diagnostic accuracy was 88.6% and 89.3%. Among the patients with decompensated hepatitis B cirrhosis, the level of vWF in the group with gastrointestinal bleeding (367.24±68.29)% was significantly higher than that in the group without gastrointestinal bleeding (286.15±109.69)%, and the difference was statistically significant (P＜0.001) The VITRO score of the group with gastrointestinal bleeding (9.12±5.4) was significantly higher than that of the group without gastrointestinal bleeding (5.36±4.13), and the difference was statistically significant (P＜0.01). The vWF level in the spontaneous peritonitis group was (341.73±87.92)% higher than that in the non-spontaneous peritonitis group (296.32±111.74)%, and the difference was statistically significant (P＜0.05). There was no statistical difference in VITRO score between the two groups. significance. Conclusion: Plasma vWF level and VITRO score can evaluate the progression of liver disease and the degree of decompensation of liver cirrhosis in patients with HBV infection, and have a predictive effect on various complications after decompensation of liver cirrhosis, and have certain guiding significance for early intervention measures.
Disease Progression ; Gastrointestinal Hemorrhage/etiology* ; Hepatitis B/complications* ; Hepatitis B virus ; Hepatitis B, Chronic/diagnosis* ; Humans ; Liver Cirrhosis/virology* ; Peritonitis/complications* ; von Willebrand Factor/analysis*

Objective To evaluate the clinical characteristics and prognostic predictors of patients with diffuse alveolar hemorrhage (DAH) and/or interstitial lung disease (ILD) secondary to microscopic polyangiitis (MPA) in a Chinese general hospital. Methods We retrospectively reviewed the medical records of MPA patients admitted to internal medicine departments between the year 2002 and 2012. The patients were divided into the ILD, DAH, DAH combined with ILD (DAHILD), and no pulmonary involvement (NPI) groups according to pulmonary involvement patterns. The clinical characteristics at diagnosis were analyzed. The risk factors associated with short-term death and long-term death were identified with Logistic regression and Cox analysis.Results Of 193 newly diagnosed MPA patients, 181 patients were enrolled in the research, of which 19 had DAH alone, 96 had ILD alone, 18 had DAH and DAH concurrently, and 48 had NPI. The median of serum creatine level in the DAH group was 449 μmol/L, significantly higher than that in the ILD group (123 μmol/L, Nemenyi = -35.215, P = 0.045) and DAHILD group (359 μmol/L, Nemenyi = -43.609, P = 0.007). The median follow-up time was 67 (range: 1-199) months. Patients in the ILD group were older than those in the DAH group (median: 69 years vs. 57 years, Nemenyi = 43.853, P= 0.005). The patients with both DAH and ILD had combined features of the two subtypes, and the highest mortality (72.2% at the end of follow-up). The elevated white blood cell count was a risk factor for short-term death (OR = 1.103, 95%CI: 1.008-1.207, P = 0.032 for one month; OR = 1.103, 95%CI: 1.026-1.186, P = 0.008 for one year). Old age (HR= 1.044, 95%CI: 1.023-1.066, P < 0.001), cardiovascular system involvement (HR = 2.093, 95%CI: 1.195-3.665, P = 0.010), poor renal function (HR = 1.001, 95%CI: 1.000-1.002, P = 0.032) were risk factors for long-term death. Pulmonary infections (38/54) were the leading causes of death, especially for the patients with ILD. Besides, 49 patients suffered from pulmonary infections in the first year after diagnosis. Conclusions MPA patients who presented with different pulmonary involvement patterns have completely different clinical features. These subtypes probably have different pathogenesis and should be studied separately.
Humans ; Microscopic Polyangiitis/diagnosis* ; Retrospective Studies ; Lung Diseases, Interstitial/complications* ; Hemorrhage/complications* ; Prognosis

Duodenal leiomyosarcoma is a rare condition with a poor prognosis. Early diagnosis of duodenal leiomyosarcoma is challenging because it presents with nonspecific symptoms and endoscopic biopsies usually do not enable a definitive diagnosis. Duodenal leiomyosarcomas are diagnosed on the basis of the histopathological identification of a mesenchymal lesion composed of malignant tumor cells that on immunohistochemical examination is positive for smooth muscle actin and desmin. We report the case of a 38-year-old man who presented with gastrointestinal bleeding and obstruction who was diagnosed with duodenal leiomyosarcoma after surgical resection.
Actins ; Adult ; Biopsy ; Desmin ; Diagnosis ; Duodenal Obstruction ; Early Diagnosis ; Gastrointestinal Hemorrhage ; Hemorrhage ; Humans ; Leiomyosarcoma ; Muscle, Smooth ; Prognosis

To analyze the clinical features and prognosis of ulcerative colitis(UC)complicated with acute massive lower gastrointestinal bleeding(LGIB). Methods Eleven patients hospitalized in Peking Union Medical College Hospital from January 2006 to December 2017 for treatment of UC,suffering from acute massive LGIB,were enrolled and descriptively analyzed. Results The proportion of UC patients with acute massive LGIB was 0.7% among all 1486 UC patients hospitalized during the study period.The disease was moderately or severely active in these 11 patients,among whom 9 patients(81.8%)had chronic relapsing pancolitis.Cytomegalovirus infection was present in 5 patients,among whom 4 patients received antiviral treatments.All the 11 patients received treatments including food and water fasting,rehydration,blood transfusion,and use of somatostatin.Four patients received emergency surgical treatment after the first episode of massive bleeding,and 3 of them suffered from re-bleeding after the surgery.Among the remaining seven patients,two underwent emergency total colectomy+subtotal rectectomy+ileostomy and three received elective total resection of colon and rectum or total colectomy+subtotal rectectomy+ileostomy.Thus,9 patients underwent emergency surgery,1 patient did not receive surgey during follow-up,and 1 patient was lost to follow-up. Conclusions Acute massive LGIB is a manifestation of active UC and can be associated with poor prognosis.Optimized perioperative management is important for improving the outcomes of such patients.
Colectomy ; Colitis, Ulcerative ; complications ; diagnosis ; surgery ; Gastrointestinal Hemorrhage ; complications ; surgery ; Humans ; Ileostomy ; Prognosis

Adult ; Cerebral Angiography ; Female ; Humans ; Intracranial Aneurysm ; complications ; diagnostic imaging ; Lupus Erythematosus, Systemic ; complications ; diagnostic imaging ; Subarachnoid Hemorrhage ; diagnosis ; diagnostic imaging ; etiology ; Young Adult

Acquired hemophilia is a rare, potentially life-threatening disease that usually remains under-recognized especially in a primary setting; thus, diagnosing this disease is very challenging. Given its prevalence in elderly patients, awareness and diagnosis of this condition in the aging population (particularly those with unexplained bleeding or prolonged activated partial thromboplastin time) should be improved and better managed by the clinicians. Early diagnosis and prompt treatment are usually effective in preventing the adverse outcomes of this disease. In this report, we discuss a case of an elderly patient with acquired hemophilia who initially presented with swelling of his lower left limb. The diagnosis of acquired hemophilia was made a month after the appearance of symptoms. Early diagnosis with proper treatment could have been provided to this patient, if the initial assessment had been thoroughly conducted.
Aged ; Aging ; Diagnosis ; Early Diagnosis ; Extremities ; Factor VIII ; Hemophilia A ; Hemorrhage ; Humans ; Prevalence ; Thromboplastin

PURPOSE: To investigate the risk factors of diabetic nephropathy in patients with diabetic retinopathy requiring panretinal photocoagulation (PRP) and the visual prognosis. METHODS: A retrospective review of electronic medical records was conducted at Seoul St. Mary's Hospital, comprising 103 patients with type 2 diabetes mellitus and diabetic retinopathy who underwent PRP from 1996 to 2005. Patients with type 1 diabetes mellitus, non-diabetic renal disease, non-diabetic retinal disease, visually significant ocular disease, high-risk proliferative diabetic retinopathy, and advanced diabetic retinopathy were excluded. The patients were divided into three groups: no nephropathy (group 1, n = 45), microalbuminuria (group 2, n = 16), and advanced nephropathy (group 3, n = 42). Duration of diagnosis of retinopathy and nephropathy, glycosylated hemoglobin, visual acuity, complications, and treatment history were investigated. RESULTS: The mean glycosylated hemoglobin of group 3 (8.4 ± 1.2) was higher than that of group 1 (7.7 ± 1.0) or group 2 (7.7 ± 1.0) (p = 0.04). Mean interval from PRP to diagnosis of nephropathy was 8.8 ± 6.0 years in group 2 and 8.7 ± 4.9 years in group 3. The significant decrease in visual acuity in group 3 (28 eyes, 35.9%) was significantly higher than that in group 1 (15 eyes, 18.1%, p = 0.01) or group 2 (6 eyes, 20.7%, p = 0.03). Only vitreous hemorrhage showed a significantly higher incidence in groups 2 and 3 than in group 1 (p = 0.02). Multivariate regression analysis revealed that female sex and lower glycosylated hemoglobin were significantly associated with a protective effect on development of nephropathy. CONCLUSIONS: In the clinical setting, many patients with PRP-requiring diabetic retinopathy develop nephropathy an average of 8 to 9 years after PRP. Male sex and higher glycosylated hemoglobin could be risk factors of nephropathy.
Diabetes Mellitus, Type 1 ; Diabetes Mellitus, Type 2 ; Diabetic Nephropathies ; Diabetic Retinopathy ; Diagnosis ; Electronic Health Records ; Female ; Hemoglobin A, Glycosylated ; Humans ; Incidence ; Light Coagulation ; Male ; Prognosis ; Retinal Diseases ; Retrospective Studies ; Risk Factors ; Seoul ; Visual Acuity ; Vitreous Hemorrhage

BACKGROUND: Le Fort I osteotomy is one of the surgical procedures now routinely and safely performed. It is possible to move the maxilla in three dimensions, but it is necessary to separate the bones around the maxillary sinus. Therefore, with surgery, maxillary sinus mucosal thickening occurs. By knowing the changes in the sinus mucosa after surgery and the factors affecting it, it is possible to better predict the outcomes of surgery and contribute to safer surgery. In this study, thickening of maxillary sinus mucosa before and after surgery in Le Fort I osteotomy was evaluated using multidetector-row computed tomography (MDCT) images, and the changes in mucosal thickening and the related factors were examined. METHODS: Using MDCT images, the maxillary sinus mucosa of 125 patients who had undergone Le Fort I osteotomy was retrospectively evaluated before surgery, 1 month after surgery, and 1 year after surgery. On the MDCT images, the maxillary sinus was judged as mucosal thickening and classified into three grades according to the proportion occupying the maxillary sinus. In the evaluation of factors related to mucosal thickening, the following eight factors were examined: sex, age, diagnosis, operating time, amount of postoperative bleeding, with/without bone graft, with/without multisegmental osteotomy, and with/without macrolide therapy after surgery. RESULTS: The mean age at the time of surgery was 25.6 ± 8 years. Of all 125 patients, 66 had bilateral thickening, 19 had unilateral thickening, and 40 had no thickening. Factors that were significantly related to mucosal thickening were the operative time for the maxilla, bone grafts, and macrolide therapy after surgery. CONCLUSIONS: Operative time for the maxilla, bone grafts, and macrolide therapy after surgery were found to be related to mucosal thickening. In addition, MDCT scanning 1 month after surgery was considered to be appropriate for evaluation of maxillary sinus mucosal thickening.
Diagnosis ; Hemorrhage ; Humans ; Maxilla ; Maxillary Sinus ; Mucous Membrane ; Multidetector Computed Tomography ; Operative Time ; Orthognathic Surgery ; Osteotomy ; Retrospective Studies ; Transplants