OBJECTIVE To evaluate the clinical efficacy and safety of extending the administration time of meropenem in the treatment of moderate and severe bacterial infections in surgical intensive care uint(SICU) patients.METHODS Fifty patients with moderate and severe bacterial infections admitted to SICU were randomized to two groups: meropenem 30 min infusion group(n=25) and meropenem 3 h infusion group(n=25),the clinical efficacy and side-effects were observed between two groups.RESULTS Twenty-five patients were enrolled in meropenem 30 min infusion group with an effective rate of 48%,bacterial clearance rate of 26.9%.On the other hand,twenty-five patients were enrolled in meropenem 3 h infusion group with an effective rate of 60%,bacterial clearance rate of 43.5%.There were no significant differences between two groups(P=0.375,P=0.224,separately).CONCLUSIONS There are no significant differences between two groups on effective rate and bacterial clearance rate.

0.05). Conclusion Blood stasis syndrome is more common in AHS. PBC&RBS had some effects on AHS.

The latest advance of sedation for critically ill adult patients in intensive care unit (ICU) was reviewed in order to provide certain clinical information for the ICU physicians about sedation. Guidelines, clinical research, Meta-analysis, and reviews in recent years were collected using electronic data base. Discussions included: ① the definition of light sedation, and its effects on clinical outcome, stress, sleep and delirium; ② light sedation strategies included: the target population, the target sedation strategy and daily sedation interruption, clinical assessment and monitoring of sedation, selection of sedative drugs, light sedation extenuation; ③ light sedation strategies and pain, agitation, delirium control bundles; ④ the problems and prospects of light sedation. Light sedation is the main principle of currently ICU sedation strategy in critically ill adult patients. Goal-directed light sedation should be considered as a routine therapy in most clinical situation, and its goal should be achieved as early as possible in the early stage of sedation. Routine use of benzodiazepines should be avoided, especially in patients with or at a risk of delirium. Prevention and treatment of agitation with a combination of non-pharmacologic or pharmacologic methods; ICU specification rules for pain, agitation and delirium prevention and treatment should be made. Light sedation is the main ICU sedation strategy in adult patients now, but must be individualized for each patient.

Objective To investigate the invasive aspergillosis (IA) status in a surgical intensive care unit (SICU).Methods The clinical data including general state,operation,pathogenic microorganisms,infection position,clinical situation,treatment and prognosis of patients with IA admitted to the SICU of Peking University First Hospital from January 2004 to December 2013 were retrospectively analyzed.Results 8 220 patients admitted to the SICU of Peking University First Hospital from January 2004 to December 2013 were enrolled.Of 8 220 patients,there were 29 cases experienced IA,with an incidence of 0.35％,and the incidence of hospital onset of IA infection was 0.27％ (22/8 220).The incidence of hospital onset of IA infection was accounted for 6.98％ (22/315) of the incidence of hospital onset of infection in SICU in the same period.Compared with 2004-2008,in 2009-2013,the incidence of hospital onset of infection was significantly decreased [3.19％ (137/4 293) vs.4.53％ (178/3 927),x2=10.020,P=0.002],while the incidence of IA [0.56％ (24/4 293) vs.0.13％ (5/3 927),x2=10.874,P=0.001],the incidence of hospital onset of IA infection [0.40％ (17/4 293) vs.0.13％ (5/3 927),x2=5.556,P=0.019],and the percentage of incidence of hospital onset of IA infection according to the incidence of hospital onset of infection were increased by 5 years [12.40％ (17/137) vs.2.81％ (5/178),x2=10.982,P=0.001].Of 29 patients with IA,25 cases had occurred after operation,and the majority of them were from the Department of General Surgery (13 cases),and followed by post-renal transplantation (6 cases) and post-thoracic surgery (3 cases).In the total submission of 155 specimens from 29 patients with IA,there were 17 strains isolated aspergillosis,among which included 2 strains of Aspergillus fumigatus,and 15 other un-subgrouped strains.The most common infection site was lower respiratory tract (23 cases,79.31％).Sixteen patients were found with positive galactomannan (GM) test.In all the risk factors contributing to IA,the ratio of the long-term usage of broad-spectrum antibiotics over 4 days was the highest [36.25％ (29/80)],which followed by the long-term use of hormone [18.75％ (15/80)],complicated with acute kidney injury [18.75％ (15/80)],liver injury [13.75％ (11/80)],the long-term use of immunosuppressive orally [7.50％ (6/18)],and complicated with neutropenia [5.00％ (4/80)].In 29 patients with IA,there were 28 patients received anti-fungal treatment except for 1 patient without treatment,and those were single use of itraconazole in 1 case,single use of echinocandins in 3 cases,single use of liposomal amphotericin B in 5 cases,8 cases with voriconazole,single use of liposomal amphotericin B or echinocandins then replaced by voriconazole in 8 cases,and 3 cases of echinocandins therapy combined with voriconazole.Seventeen of 29 patients died,with a mortality rate of 58.62％.Conclusions IA is an uncommon but increasing postoperative complication of patients in SICU in recent 5 years.The most common sites of IA were lower respiratory tract.The mortality of IA is very high.So clinicians should pay more attention to the careful monitor for IA.

OBJECTIVE To investigate the occurrence of nosocomial infection and the correlated risk factors of death in patients admitted to the Surgical Intensive Care Unit(SICU) of Peking University First Hospital.METHODS The clinical data of the occurrence,sites,and pathogenic microorganisms of nosocomial infection in patients(admitted) to the SICU from Jan 2002 to Jan 2005 were analyzed retrospectively,and the correlated risk factors of death in patients with nosocomial infection were screened by Logistic regression analysis.RESULTS Nosocomial infection occurred in 4.2% patients admitted to the SICU.The mortality of patients with nosocomial infection was(48.9%.) The most frequent sites of infection were lower respiratory tract(88.9%),hematological system((48.9%),) and urinary tract(26.7%).The most prevalent pathogens of infection were Gram-negative(bacteria)((64.1%),) including Pseudomonas aeruginosa,Stenotrophomonas maltophilia,Acinetobacter calcoaceticus-(baumannii) complex and Klebsiella oxytoca.Gram-positive bacteria accounted for 24.8%,including MRSA,MRSE,and Enterococcus faecium.Fungi accounted for 11.1%,of which Candida albicans was the most frequent one.(Multidrug) resistance was an important character of the pathogens of nosocimal infection of SICU.(Aggregate)(analysis) of the correlated risk factors of death showed there were three indenpedent risk factors,including mental disturbance,hypotension,and acute renal failure(P=0.015,0.028,and 0.003,respectively).CONCLUSIONS Careful monitoring should be made for infections of lower respiratory tract,hematological system and urinary tract for patients in the SICU.The species diversity and multidrug resistance of pathogens of nosocomial infection in the SICU make it difficult to initiate the early empirical antibiotic therapy.Empirical selection of antibiotics should be made according to the local data of species and susceptibility patterns of pathogens of nosocomial infection.Mental disturbance,hypotension and acute renal failure are three independent risk factors of death for patients with(nosocomia)l infection in SICU.

Objective To analyze the clinical characteristics of pulmonary infection in patients with multiple myeloma for improving early prevention,diagnosis and treatment.Methods A retrospective analysis was conducted for 70 patients with multiple myeloma admitted to our hospital from January 2012 to April 2015.The clinical data of pulmonary infection were reviewed and analyzed in terms of radiological findings,pathogen distribution,and related risk factors.Results The peripheral white blood cell count and neutrophil percentage could be normal in pulmonary infection of patients with multiple myeloma.However,erythrocyte sedimentation rate increased significantly.Radiological study revealed that infection of bilateral lungs was common.The most frequently identified pathogens were gram negative bacteria,especially Pseudomonas aeruginosa.The main predisposing factors of pulmonary infection were agranulocytosis,stage Ⅲ multiple myeloma,and complications.Conclusions The clinical symptoms of pulmonary infection are diverse in patients with multiple myeloma.Poor immunity is the primary predisposing factor.The common pathogens are gram-negative bacteria.Beta-lactam/beta-lactamase inhibitor combinations or fluoroquinolones are effective empiric treatment for controlling the progression of pulmonary infection.

Objective The purpose of our study is to analyze the effects of different ways of anesthesia on the prognosis of these patients.Methods Our study was a retrospective study,enrolling elderly patients (≥65 years)undergoing pheochromocytoma resection surgery from Jan 2004 to Feb 201 5 in our hospital.We recorded perioperative data including demography,primary disease,com-bined disease,preoperative management,anesthesiology,surgery,and prognosis.Then we divided the patients into two groups,general anesthesia (group G)and general anesthesia combined with epi-dural anesthesia (group GE),to make further statistical analysis.Results There were 33 patients en-rolled,totally undergoing 35 cases of surgery accounting for 13.4% of pheochromocytoma resection surgery in the same period in our hospital.The maintenance of analgesia during surgery by using remifentanyl (18.2% vs 79.2%,P = 0.001 )and sufentanyl (45.5% vs 79.2%,P = 0.046 )were significantly lower in group of general anesthesia combined with epidural anesthesia.However hemo-dynamic parameters didn’t show statistical difference between groups.There were no patients dead during perioperative period.In group GE,the duration of mechanical ventilation (P =0.039),post-operative hospital stay (P =0.013)and total hospital stay (P =0.01 5)were much shorter than those in group G.Multivariable Cox model analysis showed that general anesthesia combined with epidural anesthesia was an independent protective factor for shorter postoperative hospital stay (RR=0.245, 95% CI 0.106-0.564,P =0.001),and combination of vasopressors during operation were the inde-pendent predictors of longer postoperative hospital stay (RR= 4.184,95% CI 1.146-1 5.281,P =0.030).Conclusion During pheochromocytoma resection surgery in elderly patients,general anesthe-sia combined with epidural anesthesia had lower rate of using intravenous analgesic drugs,shorter du-ration of mechanical ventilation,postoperative hospital stay and total hospital stay.

Objective To compare the efficacy and safety of zoledronic acid and alendronate in the treatment of postmenopausal osteoporosis and to provide a clinical basis for the safe use of zoledronic acid.Methods Two hundred and ten female patients with postmenopausal osteoporosiswomen in Xuanwu Hospital Capital Medical University from January 2013 to January 2014 were selected as research objects,they were randomly divided into zoledronic acid group(105 cases)and alendronate group(105 cases),patients in the zoledronic acid group were given intravenous infusion of zoledronic acid injection 5 mg one time a year,the alendronate group were given alendronate 70 mg one week,both group had been treated for 24 months.The bone mineral density of the lumbar spine and hip was measured by dual energy X-ray absorptiometry before and after treatment,and the VAS score of the pain status was measured.The chest and lumbar spine were examined by X-ray,and the adverse reactions were recorded.Results After treatment,the BMD of the lumbar spine and hip of the zoledronic acid group and alendronate group were(-1.56 ± 0.35)g/ cm2and(-2.21 ± 0.54)g/ cm2, (-1.91±0.32)g/ cm2 and(-2.16 ± 0.26)g/ cm2,which were higher than those before treatment.The differences were statistically significant(t=6.253,3.633,5.834,3.251,P<0.05).But the BMD of the lumbar spine and hip in the zoledronic acid group was significantly higher than that in the alendronate group,the difference was statistically significant(t=4.421,5.262,P<0.05).The VAS scores of the alendronate group and the zoledronic acid group at 12 months,24 months after treatment were(4.02±0.50)points and(3.01±0.44) points,(2.95 ± 0.36)points and(1.82 ± 0.24)points,which were significantly lower than those before the treatment,the differences were statistically significant(P<0.05).The VAS score of zoledronic acid group at 12 months,24 months after treatment were significantly lower than those of the alendronate group,the differences were statistically significant(t=3.513,3.647,P<0.05).The fever incidence of the alendronate group was 2.86%(3/105),lower than that of the zoledronic acid group(30.48%(32/105)),the difference was statistically significant(χ2=32.901,P<0.01).Conclusion Zoledronic acid injection and alendronate are effective in the treatment of PMOP,but zoledronic acid has better effect on increasing bone density,reducing the degree of bone pain,with better compliance.Although it has increased the incidence of adverse reactions,it is well tolerated.

The high incidence of coronavirus disease 2019 (COVID-19) and high mortality of critical patients have posed a great challenge to global public health resources. Currently there are no specific antiviral drugs and vaccines available for COVID-19, which has drawn the attention to the usefulness of convalescent plasma (CP) again, so the application of CP in the adult patients with COVID-19 is reviewed. The main contents include the possible mechanism of CP, the evidence of CP in the treatment of COVID-19 patients, the safety of clinical application of CP and the main factors affecting the clinical effect of CP, which may provide some basis for clinicians to choose CP for the treatment of adult patients with COVID-19.

Objective:To study the relationship between vitamin D level and muscle mass and grip strength in elderly patients with type 2 diabetes mellitus (T2DM).Methods:From May 2016 to January 2018, 201 patients with type 2 diabetes mellitus aged ≥ 60 who were admitted to the Department of endocrinology of Xuanwu Hospital were selected for prospective study. According to 25-hydroxyvitamin D level(25(OH)D), the patients were divided into the vitamin D deficiency group (25(OH)D<20 μg/L, 140 cases) and the non-deficiency group (20 μg/L≤25(OH)D<70 μg/L, 61 cases). The grip strength, walking speed and muscle mass of upper and lower limbs were measured.Physical examination and laboratory examination were carried out.Results:There was no significant difference between the two groups ( P>0.05). The grip strength, upper limb and lower limb muscle contents in the non deficiency group were significantly higher than those in the deficiency group ((33.49±9.43) kg vs.(29.59±10.30) kg, (4.99±1.09) kg vs.(4.57±1.11) kg, (15.69±3.10) kg vs.(14.54±3.03) kg, P=0.01, 0.015, 0.017). Multivariate logistic regression analysis showed that vitamin D deficiency was independently related to grip strength and lower limb muscle mass( OR=1.286, 95% CI: 1.197-1.346, P<0.01; OR=1.231, 95% CI: 1.102-1.283, P<0.05). Conclusion:Vitamin D deficiency is a risk factor for the decrease of grip strength and lower extremity muscle mass in elderly patients with type 2 diabetes.