OBJECTIVE: To evaluate the safety and clinical therapeutic effect of in-line mechanical in-exsufflation to assist sputum clearance in patients with invasive mechanical ventilation. METHODS: A prospective observational study was conducted at the department of critical care medicine, the First Affiliated Hospital of Sun Yat-sen University from April 2022 to May 2023. Patients who were invasively ventilated and treated with in-line mechanical in-exsufflation to assist sputum clearance were enrolled. Baseline data were collected. Sputum viscosity, oxygenation index, parameters of ventilatory function and respiratory mechanics, clinical pulmonary infection score (CPIS) and vital signs before and after day 1, 2, 3, 5, 7 of use of the in-line mechanical in-exsufflation were assessed and recorded. Statistical analyses were performed by using generalized estimating equation (GEE). RESULTS: A total of 13 invasively ventilated patients using in-line mechanical in-exsufflation were included, all of whom were male and had respiratory failure, with the main cause being cervical spinal cord injury/high-level paraplegia (38.46%). Before the use of the in-line mechanical in-exsufflation, the proportion of patients with sputum viscosity of grade III was 38.46% (5/13) and decreased to 22.22% (2/9) 7 days after treatment with in-line mechanical in-exsufflation. With the prolonged use of the in-line mechanical in-exsufflation, the patients' CPIS scores tended to decrease significantly, with a mean decrease of 0.5 points per day (P < 0.01). Oxygenation improved significantly, with the oxygenation index (PaO₂/FiO₂) increasing by a mean of 23.3 mmHg (1 mmHg ≈ 0.133 kPa) per day and the arterial partial pressure of oxygen increasing by a mean of 12.6 mmHg per day (both P < 0.01). Compared to baseline, the respiratory mechanics of the patients improved significantly 7 days after in-line mechanical in-exsufflation use, with a significant increase in the compliance of respiratory system (Cst) [mL/cmH₂O (1 cmH₂O ≈ 0.098 kPa): 55.6 (50.0, 58.0) vs. 40.9 (37.5, 50.0), P < 0.01], and both the airway resistance and driving pressure (DP) were significantly decreased [airway resistance (cmH₂O×L^-1×s^-1): 9.6 (6.9, 10.5) vs. 12.0 (10.0, 13.0), DP (cmH₂O): 9.0 (9.0, 12.0) vs. 11.0 (10.0, 15.0), both P < 0.01]. At the same time, no new lung collapse was observed during the treatment period. No significant discomfort was reported by patients, and there were no substantial changes in heart rate, systolic blood pressure, diastolic blood pressure, and mean arterial pressure before and after the in-line mechanical in-exsufflation treatment. CONCLUSIONS The combined use of the in-line mechanical in-exsufflation to assist sputum clearance in patients on invasive mechanical ventilation can effectively improve sputum characteristics, oxygenation and respiratory mechanics. The in-line mechanical in-exsufflation was well tolerated by the patients, with no treatment-related adverse events, which demonstrated its effectiveness and safety.
Humans ; Prospective Studies ; Respiration, Artificial/methods* ; Respiratory Insufficiency/therapy* ; Sputum

Odontogenic maxillary sinusitis(OMS)is a subtype of maxillary sinusitis(MS).It is actually inflammation of the maxillary sinus that secondary to adjacent infectious maxillary dental lesion.Due to the lack of unique clinical features,OMS is difficult to distinguish from other types of rhinosinusitis.Besides,the characteristic infectious pathogeny of OMS makes it is resistant to conventional therapies of rhinosinusitis.Its current diagnosis and treatment are thus facing great difficulties.The multi-disciplinary cooperation between otolaryngologists and dentists is absolutely urgent to settle these questions and to acquire standardized diagnostic and treatment regimen for OMS.However,this disease has actually received little attention and has been underrepresented by relatively low publication volume and quality.Based on systematically reviewed literature and practical experiences of expert members,our consensus focuses on characteristics,symptoms,classification and diagnosis of OMS,and further put forward multi-disciplinary treatment decisions for OMS,as well as the common treatment complications and relative managements.This consensus aims to increase attention to OMS,and optimize the clinical diagnosis and decision-making of OMS,which finally provides evidence-based options for OMS clinical management.

Damp-heat syndrome is one of the common syndromes of various clinical diseases.Current studies have shown that intestinal flora is closely related to damp-heat syndrome,but the specific molecular biological mechanism related to intestinal flora and damp-heat syndrome is not yet clear.In this paper,the molecular biological mechanism of damp-heat syndrome is discussed from the perspective of intestinal flora related signaling pathways,so as to provide ideas for the essence of damp-heat syndrome and clinical diagnosis and treatment.

ObjectiveTo investigate the changes of intestinal microbiota in type 2 diabetic diarrhea （T2DD） patients with dampness-heat syndrome and spleen-kidney deficiency syndrome. MethodT2DD patients who were admitted to the Department of Endocrinology Ⅰ of the Affiliated Hospital of Shaanxi University of Chinese Medicine from March 2020 to May 2021 were selected， including 14 patients with type 2 diabetes mellitus （T2DM）， 12 T2DD patients with dampness-heat syndrome， and 13 T2DD patients with spleen-kidney deficiency syndrome. Twelve healthy subjects receiving medical examination were selected as control group. Their body mass index （BMI）， fasting plasma glucose （FPG）， 2 h postprandial blood glucose （2 h PBG） and glycosylated hemoglobin （HbA1c） were compared. Fecal samples were collected for DNA extraction to build a database. High-throughput 16S rDNA sequencing was used to compare the composition of intestinal microbiota and the differential bacteria among the four groups. ResultCompared with the conditions in control group， the levels of FPG， 2 h PBG and HbA1c in the other groups were increased （P<0.05）. Alpha diversity showed no significant difference in species richness， evenness and diversity of intestinal microbiota among the groups. Beta diversity indicated that intestinal microbiota tended to be consistent in each group， and there was no marked difference between groups. The top 5 phylum by relative abundance were Bacteroidetes，Proteobacteria， Firmicutes， Actinobacteria， and Fusobacteria， among which，Bacteroidetes， Proteobacteria and Firmicutes were dominant. Compared with the control group， the three diabetic groups had elevated relative abundance of Bacteroidetes while decreased relative abundance of Firmicutes. The relative abundance of Actinomycetes in spleen-kidney deficiency T2DD group was significantly higher than that in the other groups， and the relative abundance of Firmicutes and Fusobacteria in the dampness-heat T2DD group was significantly lower than that in the other groups. At the genus level， the top 10 bacteria by relative abundance were Phocaeicola， Bacteroides， Pseudescherichia， Prevotella， Bifidobacterium， Faecalibacterium， Fusobacterium， Roseburia， Citrobacter， and Cetobacterium. LEfSe analysis revealed that the relative abundance of Prevotella， Mediterraneibacter， Parabacteroides， and Fusicatenibacter in diabetic patients was remarkably higher than that in healthy patients. Bacteroides and Sutterella might be the characteristic microbiota of T2DD patients with dampness-heat syndrome， while Faecalibacterium， Limosilactobacillus， Eubacterium， Gemmiger， Enterocloster， Alistipes， Parasutterella and Oscillibacter might be the characteristic microbiota of T2DD patients with spleen-kidney deficiency syndrome. ConclusionBacteroides and Parasutterella might be the characteristic microbiota of T2DD patients with dampness-heat syndrome and spleen-kidney deficiency syndrome， respectively. This paper provided reference for studying the mechanism， diagnosis and treatment of modern traditional Chinese medicine for T2DD of dampness-heat type and spleen-kidney deficiency type.

The Chinese Society of Critical Care Medicine (CSCCM) has developed the clinical practice guidelines of nutrition assessment and monitoring for patients in adult intensive care unit (ICU) of China. This guideline focuses on nutrition assessment and metabolic monitoring to achieve the optimal and individualized nutrition therapy for critical ill patients. This guideline was made by experts in critical care medicine and evidence-based medicine methodology and was developed after a thorough system review and summary of relevant trials or studies published from 2000 to July 2023. A total of 18 recommendations were formed and consensus was reached through discussions and review by expert groups in critical care medicine, parenteral and enteral nutrition, and surgery. The recommendations are based on the currently available evidence and cover several key fields, including nutrition risk screening and assessment, evaluation and assessment of enteral feeding intolerance, metabolic and nutritional measurement and monitoring during nutrition therapy, and organ function evaluation related to nutrition supply. Each question was analyzed according to the PICO principle. In addition, interpretations were provided for four questions that did not reach a consensus but may have potential clinical and research value. The plan is to update this nutrition assessment and monitoring guideline using the international guideline update method within 3 to 5 years.
Adult ; Humans ; China ; Critical Care ; Critical Illness/therapy* ; Intensive Care Units ; Nutrition Assessment ; Nutritional Support/methods*

Humans ; COVID-19 ; Consensus ; SARS-CoV-2 ; China

OBJECTIVE: To assess the association of C677T polymorphism of methylenetetrahydrofolate reductase (MTHFR) gene with autistic behavior and inheritance pattern of children patients. METHODS: Ninety three autism patients were selected as the study group, whilst 93 healthy children were selected as the control group. The C677T genotype of the MTHFR gene was determined, and the correlation between the genotype and the autistic behavior and inheritance pattern were investigated. RESULTS: MTHFR gene C677T locus revealed three genotypes CC, CT and TT. Compared with the control group, the study group had fewer CC genotype but more TT genotype (P<0.05). Individuals with the three genotypes showed a statistically significant difference in the frequencies of four problem behaviors (P<0.05). Regression analysis showed that at least one T allele encoding the degree of 1 and 2 for the 4 problem behaviors that were statistically different. MTHFR gene C677T genotype was associated with autism under the recessive inheritance model and allelic inheritance model (P<0.05). CONCLUSION The C677T polymorphism of the MTHFR gene is associated with autistic behaviors. Children with the TT genotype or T allele are at higher risk of developing autism, particularly direct gaze, complex limb movements, self-injurious behavior and hyperactivity 1 and 2 related with the degree of coding.
Autistic Disorder/genetics* ; Child ; Genetic Predisposition to Disease ; Genotype ; Humans ; Inheritance Patterns ; Methylenetetrahydrofolate Reductase (NADPH2)/genetics* ; Problem Behavior

Objective:To study the current process and steps of government procurement in China, analyze the key factors affecting fair competition in the process of government procurement in public hospitals, and put forward feasible operational suggestions to promote fair competition in government procurement.Methods:Delphi method was used to construct the index system of the key factors affecting fair competition during the process of government procurement of public hospitals. The weight of the index system was determined by the analytic hierarchy process, and the key factors were quantitatively analyzed.Results:The index system affecting fair competition in the process of government procurement of public hospitals included 1 first-level index, 8 second-level indexes and 21 third-level indexes. Through calculation and analysis, it was concluded that the key factors affecting fair competition were feasibility study, market research, contract performance acceptance, procurement demand confirmation and project approval, with their comprehensive weights of 0.228 5, 0.144 0, 0.085 9, 0.072 9 and 0.060 4, respectively.Conclusions:We should properly expand the scope of feasibility study, fully carry out market research, reasonably set government procurement demand parameters, and strengthen contract performance acceptance and payment management, so as to promote the fair competition of government procurement in public hospitals.

Objective:To analyse the effect of preoperative renal function classification on early outcomes for patients with acute type A aortic dissection(AAAD) and to estimate the risk factors of postoperative major adverse events.Methods:From January 2012 to December 2019, 226 patients with AAAD who underwent total arch replacement at our institution were retrospectively analysed, including 146 males and 80 females, aged(54.4±12.5) years old. Stages of preoperative renal function were defined as follows: Normal[estimated glomerular ltration rate(eGFR)≥90 ml·min -1·1.73 m -2, 68 cases], Mild(eGFR 60-89 ml·min -1·1.73 m -2, 73 cases); Moderate(eGFR 30-59 ml·min -1·1.73 m -2, 57 cases), Severe(eGFR<30 ml·min -1·1.73 m -2, 28 cases). The independent risk factors for postoperative death were analyzed by logistic regression analysis. The area under the receiver operating characteristic curve was used to assess the efficiency of eGFR for predicting the postoperative hemodialysis. Results:In-hospital death occurred in 24(10.6%) cases. Major complications included postoperative hemodialysis in 49(21.7%) cases, stroke in 19(8.4%) cases and tracheotomy in 15(6.6%) cases. The best cut-off value of the eGFR for predicting postoperative hemodialysis was 36.5 ml·min -1·1.73 m -2(area under the receiver operating characteristic curve was 0.793). The following variables were found to be risk factors of in-hospital mortality in multivariate logistic regression analysis: serum creatinine, eGFR<30 ml·min -1·1.73 m -2, neural malperfusion, bowel malperfusion, postoperative stroke and hemodialysis. Conclusion:Total arch replacement can be safely performed in patients with AAAD and mild renal dysfunction. Preoperative renal dysfunction is a risk factor for postoperative hemodialysis, and eGFR is useful for predicting the requirement for hemodialysis after total arch replacement. The severity of preoperative renal dysfunction could greatly influence the outcomes after total arch replacement for AAAD. More importance should be attached to the assessment of preoperative renal function during clinical risk assessment.

Objective:To repair the secondary mandibular angle caused by madibular osteotomy by using digital technology and to make quantitative comparative evaluation.Methods:Thirty-nine patients with secondary mandibular angle with unsmooth mandibular margin or bilateral asymmetry after mandibular osteotomy in Southern Theater General Hospital from 1996 to 2017 were included. The three-dimensional model of skull was established by CT skull scan and Mimics 13.0 software. The computer aided design was used to carry out the secondary surgical repair according to the design line, and the mandibular angle was quantitatively measured and evaluated before and after the revision operation. The mandibular angles before, after design and after restoration were measured on the reconstructed images, and the bilateral symmetry and the consistency between the design result and the final result were compared by Paired- t sample test. P< 0.05 indicates statistical difference. Results:All the 39 patients completed the operation successfully, and 1 case developed hematoma 15 days after operation, which was drained and bandaged by oral dressing. Two weeks after operation, the hematoma was resolved. No infection, nerve injury and accidental fracture of mental process were found in all patients. During the 6-month follow-up, the mandibular angle of 39 patients improved from 118.12°±18.08° on the left side and 114.60°±16.01° on the right side to 121.28°±6.96° on the left side and 121.32°±5.88° on the right side. There was significant difference between the left and right sides before operation ( t=1.744, P=0.045), but there was no significant difference between the two sides about 6 months after operation( t=-0.074, P=0.529). The angle of mandibular angle after design was compared with the actual outcomes of patients 6 months after operation and there was no significant difference( t=-0.527, P=0.601). All the patients were satisfied with the improvement of the secondary mandibular angle and facial shape. Conclusions:The application of digital technique to repair the secondary mandibular angle after mandibular osteotomy not only avoids the injury of inferior alveolar neurovascular bundle and mental nerve, but also effectively improves the facial shape of the patients.