Objective To study the ultrastructure of macular puck er (MP) from the patients with rhegmatogenous retinal detachment (RRD) and the mechanism associated with its development． Methods Twenty specimens of MP surgically removed by vitrectomy from 13 patients were dissected into two layers in each of them．The ultrastructure of two layers,i,e,near the vitreous and near the retina,was studied with electron microscopy． Results Seven sections of the near vitreous ones appeared prodominant collagen deposits and a few of epithelial like cells,and pigment particles might be present in the cytoplasm．While cells with foot processes were found in 13 membrane sections near the retina and increasing number of various types of cells rich in collagen around were observed including fibroblast like cells and glial cells． Conclusion The findings suggest that the MP after surgery of retinal detachment may possess a characteristic lamination,and posterior hyaloid cortex was involved in the developmetn of MP． The adhesion between posterior hyaloid cortex and macular area might be a key factor for forming MP． (Chin J Ocul Fundus Dis, 2001,17:52-54)
ObjectiveTo investigate the current status and influencing factors of self-care behavior of non-dialysis patients with chronic kidney disease (CKD).MethodsA total of 336 patients with CKD were investigated by a general data questionnaire, the CKD Self-care Behavior Scale, Social Support Scale, Generalized Anxiety Self-assessment Scale, and 9-item Patients Health Questionnaire through WeChat platform, and the influencing factors of self-care behavior were explored by binary logistic regression analysis.ResultsThe median score of self-care behavior of CKD patients without dialysis was 60, and the patients with median and high level of self-care behavior accounted for 97.6%. The score of self-care behavior of CKD patients without dialysis was positively correlated with the total score of social support (r=0.210, P<0.001), objective support score (r=0.127, P=0.020), subjective support score (r=0.195, P<0.001), and social support utilization score (r=0.164, P=0.002), and negatively correlated with the anxiety score (r=–0.132, P=0.015), depression score (r=–0.230, P<0.001), body mass index (r=–0.181, P=0.001), and systolic blood pressure (r=–0.168, P<0.001). The results of binary logistic regression analysis showed that the influencing factors of non-dialysis CKD patients’ self-care behavior were gender [(odds ratio, OR)=2.179, 95% confidence interval, CI (1.134, 4.187), P=0.019], systolic blood pressure [OR=0.967, 95%CI (0.947, 0.987), P=0.002], and depression score [OR=0.844, 95%CI (0.765, 0.931), P=0.001].ConclusionsThe self-care behavior of CKD patients without dialysis is at the median and high level. Healthcare workers can improve the self-care behavior of CKD patients by reducing their negative emotions such as depression, and guiding patients to carry out blood pressure management, to delay the progress of the disease.
Objective To evaluate the effectiveness and safety of autologous hemopoietic stem cell implantation for peripheral arterial disease (PAD). Methods Randomized controlled trials (RCTs) were identified from CBM (1978 to September 2010), CNKI (1979 to September 2010), MEDLINE (1950 to September 2010), Pubmed (1950 to September 2010), Embase (1970 to September 2010), and Cochrane l ibrary (issue 4, 2010). The papers of the RCTs of cl inical therapeutic studieson PAD treated by autologous hemopoietic stem cell implantation were included and analyzed according to the criteria of the Cochrane handbook. Results Eight RCTs involving 280 patients and 322 extremities were included, with majority of trials of low methodological qual ity. Meta-analysis indicated that autologous hemopoietic stem cell transplantation had an increased ulcer cure rate [RD=0.38, 95% CI= (0.25, 0.50)], a significant improvement in the ankle brachial index [MD=0.11, 95%CI= (0.04, 0.18)], transcutaneous oxygen tension [MD=7.33, 95%CI= (3.14, 11.51)], and pain-free walking distance [SMD=1.35, 95%CI= (0.90, 1.79)], a significant reduction in rest pain scores [MD= —1.70, 95%CI= (—2.15, —1.25)], and a significant benefit in terms of l imb salvage [RD= —0.19, 95%CI= (—0.31, —0.07)]. Only 2 trials reported the side effects of autologous hemopoietic stem cell transplantation, such as l imbs swell ing and concentrations of serum creatine phosphokinase increasing, and the long-term safety was not reported. Conclusion Based on the review, autologous hemopoietic stem cell transplantation may have positive effect on “no-option” patients with PAD. However, the evidence is not b enough due to the general low methodological qual ity, so we can not draw a rel iable conclusion about the effects of autologous stem cell transplantation for PAD at the moment. Further larger, randomized, double bl ind, placebo-controlled, and multicenter trials are needed.
Objective To systematically review the effectiveness and safety of autologous implantation of stem cells for diabetic peripheral neuropathy (DPN). Methods Randomized controlled trials on relevant studies were retrieved in databases including CBM (1978-2011.6), CNKI (1979-2011.6), MEDLINE (1950-2011.6), PubMed (1950-2011.6), EMbase (1970-2011.6) and The Cochrane Library (Issue 3, 2011). References of the included studies were also retrieved. Two reviewers independently screened literature according to the inclusion and exclusion criteria, extracted data, and assess the methodological quality of the included studies. Then, meta-analysis was performed using RevMan 5.0 software.Results Four RCTs involving 68 patients (136 limbs) were included, most of which were low in methodological quality. The results of meta-analysis indicated that, autologous stem cell therapy improved or even eliminated DPN symptoms including pain, numbness, and cold sensation in the limbs, intermittent limping, and rest pain. Compared with the routine therapy, autologous stem cell therapy improved tibial sensory nerve conduction velocity (MD=5.75, 95%CI 3.86 to 7.64, Plt;0.000 01), tibial motor nerve conduction velocity (MD=4.04, 95%CI 0.90 to 7.18, P=0.001), sural sensory nerve conduction velocity (MD=7.47, 95%CI 4.00 to 10.94, Plt;0.000 1), and sural motor nerve conduction velocity (MD=3.38, 95%CI 0.07 to 7.58, P=0.05), with no adverse reaction reported. Conclusion Current evidence shows that, autologous stem cell therapy is effective in treating DPN. Due to the lack of high quality studies, more high quality RCTs are needed to verify the above conclusion.
Objective To evaluate the effectiveness and safety of sarpogrelate hydrochloride for patients with peripheral arterial disease (PAD). Methods The randomized controlled trials (RCTs) on PAD treated by sarpogrelate hydrochloride were identified from CBM (1978 to September 2011), CNKI (1979 to May 2011), PubMed (1950 to May 2011), EMbase (1970 to May 2011) and The Cochrane Library (Issue 3, 2011). According to the criteria of the Cochrane Handbook, two reviewers independently screened the studies, extracted and cross-checked the data, and assessed the methodological quality. Then meta-analysis was conducted by using RevMan 5.0 software. Results Nine RCTs involving 522 patients and 532 limbs were included, with low methodological quality in most trials. The results of meta-analyses indicated that compared with the conventional treatment, sarpogrelate hydrochloride could reduce the area of ulcers (MD= –3.22, 95%CI –3.99 to –2.45), and it could increase the ankle-brachial index (SMD=0.49, 95%CI 0.07 to 0.91), blood flow of dorsalis pedis artery (MD=0.16, 95%CI 0.09 to 0.23) and pain-free walking distance (MD=200.87, 95%CI 3.39 to 398.36). Five trials reported the adverse effects of sarpogrelate hydrochloride, most of which were mild gastrointestinal symptoms. Conclusion Based on the review, sarpogrelate hydrochloride may have positive effect on patients with PAD. However, the evidence is not b enough due to the general low methodological quality, so the reliable conclusion has to be drawn with more high quality studies in future.
Because existing anticoagulants may have contraindications and side effects, continuous renal replacement therapy (CRRT) without anticoagulants is nevertheless widely used. Although it does not produce major adverse effects without anticoagulant CRRT, it can raise the risk of clotting, which can lead to treatment cessation. Extracorporeal circulation lines with saline flush are frequently utilized as a non-pharmaceutical anticoagulation strategy. However, in the absence of anticoagulant CRRT, its clinical efficacy remains debatable. Therefore, this article reviews the specific procedures, flushing frequency, flushing effect, and adverse events of flushing extracorporeal circulation lines with normal saline when CRRT is free anticoagulant, generating fresh ideas for future research.
Objective To explore the safety and efficacy of regional citrate anticoagulation in hemoperfusion combined with continuous renal replacement therapy (CRRT). Methods Patients who underwent continuous veno-venous hemodiafiltration tandem hemoperfusion between January 2021 and March 2022 in West China Hospital of Sichuan University were retrospectively enrolled. All patients received double-lumen catheter indwelling through internal jugular vein or femoral vein for vascular access, and were treated with Prismaflex V8.0 CRRT machine, extracorporeal circulation line ST150, and disposable hemoperperfusion device HA380. Four percent sodium citrate was pumped from the arterial end at the rate of 180-200 mL/h. The blood pump rate was 130-150 mL/min, the ratio of dialysis fluid to the dose of replacement fluid was 1∶1, the amount of CRRT treatment agent was 20-35 mL/(kg·h), replacement fluid was added by post-dilution method, and the treatment time of hemoperfusion was 8-10 h. The dialysis treatment completion rate, the cardiopulmonary bypass life, the incidence of coagulation events, and the levels of procalcitonin, C-reactive protein, interleukin-6, etc. were observed. Results A total of 143 cases of treatment were completed in 75 patients, among them, 119 cases were successfully completed and the completion rate of hemoperfusion treatment was 83.2%. The average life of hemoperfusion devices was (8.5±1.5) h. Bleeding or blood clotting occurred in 18.9% of the treatment (27/143), 13 cases had CRRT extracorporeal circulation coagulation, 11 cases had hemoperfusion device coagulation, and 3 cases had gastrointestinal bleeding. The ionic calcium levels after the filter of 93 cases of treatment were maintained around 0.25-0.35 mmol/L, and the peripheral calcium levels were maintained around 1.0-1.1 mmol/L. Compared with that at 0 h, the procalcitonin decreased significantly 72 h after hemoperfusion treatment (P=0.014), while there was no significant change in interleukin-6 or C-reactive protein after 72 h treatment (P>0.05). None of the patients experienced anaphylaxis during treatment. Conclusion In CRRT combined with hemoperfusion, the use of regional citrate anticoagulation results in good cardiopulmonary bypass life, inflammatory mediators clearance, and a lower risk of bleeding.
Objective To provide references for fast assessment after disasters in China by assessing articles on fast assessment of health needs after disasters. Methods We systematically searched CNKI, VIP, CBM, and PubMed from their establishments to Jan. 2011. The main results of the eligible articles were described. Results A total of 65 articles were included, of which introductions for methodology and cross-sectional studies accounted for 52.31% and 44.62%, respectively. Articles which focused on natural disasters made up 86.15% of the total. Post-disaster rapid assessment should include seismic death estimate and on-site public health assessment which contained the public health status in affected areas, health coping capacity, health condition of victims and health needs. Rapid assessment of seismic death mainly used methods based on GIS and ANN model. On-site public health assessment mainly used epidemiological field investigation. Questionnaires, interviews and surveillance of diseases were adopted. Conclusion Rapid post-disaster health needs assessment is one of the most important tasks after disasters, and the current rapid assessment methods need to be refined and improved.
ObjectiveTo develop altering intake managing symptoms (AIMS) dietary intervention and evaluate its effects on nutritional status and dietary compliance for patients after gastrectomy.MethodsFrom April 2017 to July 2018, 176 patients underwent the gastrectomy in the Xijing Hospital of Air Force Military Medical University were selected, then were divided into an AIMS group and a control group by the Excel 2007 random function method. The AIMS group was intervened by the AIMS dietary intervention, the control group was given the routine diet management. The body mass, body mass index (BMI), albumin, and dietary intake at the admission, on the 2nd week and the 3rd month after the discharge were compared between the two groups. The nutritional status of the two groups was assessed by the PG-SGA scale. The diet-related symptoms and dietary compliance of the two groups were assessed by the dietary related symptoms scale and the dietary compliance scale.ResultsA total of 176 eligible patients were enrolled in this study, including 92 patients in the AIMS group and 84 patients in the control group. There were no significant differences in the baseline data such as the gender, age, educational level, occupation, disease type, surgical method, tumor TNM stage, and pathological differentiated type between the two groups (P>0.050). There were no significant differences in the body mass, BMI, and albumin between the AIMS group and the control group before and after the dietary intervention (P>0.050). The PG-SGA score, diet-related symptom score, and dietary compliance score had significant differences between on the 2nd week or the 3rd month after the discharge and at the admission in the AIMS group and the control group (P<0.050), which had significant differences on the 2nd week or the 3rd month after the discharge between the AIMS group and the control group (P<0.001). The dietary intake of the AIMS group was significantly higher than that of the control group on the 3rd month after the discharge (P<0.001). The complications incidences of total diet-related symptoms was 5.5% (5/91) and 14.6% (12/82) in the AIMS group and the control group, respectively, the difference was statistically significant (P=0.047).ConclusionUsing AIMS dietary intervention for patients after radical gastrectomy can significantly improve their overall nutritional status and improve dietary compliance.
This study aims to explore the intraventricular pressure difference (IVPD) within left ventricle in patients with paroxysmal atrial fibrillation (PAF) by using the relative pressure imaging (RPI) of vector flow mapping (VFM). Twenty patients with paroxysmal atrial fibrillation (PAF) and thirty control subjects were enrolled in the study. Systolic and diastolic IVPD derived from VFM within left ventricle and conventional echocardiographic parameters were analyzed. It was found that the B-A IVPD of left ventricle in PAF patients showed the same pattern as controls—single peak and single valley during systole and double peaks and double valleys during diastole. Basal IVPD was the main component of base to apex IVPD (B-A IVPD). The isovolumetric systolic IVPD was associated with early systolic IVPD, early systolic IVPD was associated with late systolic IVPD, and late systolic IVPD was associated with isovolumic diastolic IVPD (all P < 0.05). The B-A IVPD and basal IVPD during isovolumetric systole, early systole, late systole and isovolumetric diastole in PAF patients significantly decreased (all P < 0.05). The study shows that the B-A IVPD pattern of the PAF group is the same as controls, but systolic B-A IVPD and basal IVPD are significantly reduced in PAF patients. VFM-derived RPI can evaluate left ventricular IVPD in PAF patients, providing a visually quantitative method for evaluating left ventricular hemodynamic mechanics in the patients with PAF.