The role of hyaluronic acid in polidocanol foam: An in vitro study.

OBJECTIVE: To study the role of hyaluronic acid (HA) in polidocanol (POL) foam. METHODS: The dose-dependent effect of HA-POL on cultured human umbilical vein endothelial cells (HUVECs) as well as foam stability was evaluated by measuring optical density (OD) values and foam half-life time (FHT), respectively. An in vitro model was utilized for estimating the foam blood-displacement capacity by adopting maximum displacement distance (MDD) and displacement time. A comparison of foam viscosity was also carried out. RESULTS: The OD values of HUVECs treated with HA first increased and then decreased with the growing dosage of HA while cells treated with HA-POL died. Both FHT and displacement time were prolonged statistically with a gradually enhanced foam viscosity. As to MDD, there were no significant differences. CONCLUSIONS: HA was found to promote HUVECs proliferation slightly, but this was almost negligible when compared to the cell-killing capacity of 1% POL. The viscosity of POL foam was enhanced by HA indicating its positive correlation with both stability and displacement capacity of POL foam.

Predictors of Progression in Intraplaque Hemorrhage Volume in Patients With Carotid Atherosclerosis: A Serial Magnetic Resonance Imaging Study.

Background and Purpose: This study aimed to investigate the arterial disease risk factors for the progression of intraplaque hemorrhage (IPH) in patients with carotid atherosclerosis using serial high-resolution magnetic resonance (MR) imaging. Methods: Consecutive symptomatic patients who had MRI evidence of intraplaque hemorrhage present in the ipsilateral carotid artery with respect to the side of the brain affected by stroke or TIA were recruited in the study. All the patients underwent follow-up MR imaging at least 6 months after baseline. The annual change in IPH and other carotid plaque morphology was calculated, and a tertile method was used to classify the plaques as progressed or not with respect to IPH volume using the software CASCADE. Logistic regression and receiver operating characteristic (ROC) curve were conducted to evaluate the risk factors for the progression of IPH. Results: A total of thirty-four symptomatic patients (mean age: 67.1 years, standard deviation [SD]: 9.8 years, 27 men) were eligible for the final analysis, and contralateral plaques containing IPH were seen in 11 of these patients (making 45 plaques with IPH in total). During mean 16.6-month (SD: 11.0 months) follow-up, the overall annual change in IPH volume in 45 plaques with IPH was mean -10.9 mm3 (SD: 49.1 mm3). Carotid plaques were significantly more likely to be classified in progressed IPH group if the patient was taking antiplatelet agent at baseline (OR: 9.76; 95%CI: 1.05 to 90.56; p = 0.045), had a baseline history of current or past smoking (OR: 9.28; 95%CI: 1.26 to 68.31; p = 0.029), or had a larger baseline carotid plaque-containing vessel wall volume (OR: 1.36 per 10 mm3; 95%CI: 1.02 to 1.81; p = 0.032) after adjustments for confounding factors. ROC analysis indicated that the combination of these three risk factors in the final model produced good discriminatory value for the progressed IPH group (area under the curve: 0.887). Conclusions: Taking an antiplatelet agent at baseline, a baseline history of current or past smoking and larger baseline carotid plaque-containing vessel wall volume were independently predictive of plaques being in the progressed IPH group. Our findings indicate that awareness and management of such risk factors may reduce the risk of intraplaque hemorrhage progression.

Psychosocial interventions on psychological outcomes of parents with perinatal loss: A systematic review and meta-analysis.

BACKGROUND: Perinatal loss can occur due to miscarriages and ectopic pregnancies, among other circumstances. Psychological health of parents can deteriorate due to perinatal loss. Parent's negative psychological outcomes include depression, anxiety, and grief. OBJECTIVE: To evaluate the effectiveness of psychosocial interventions in reducing depression, anxiety, and grief among parents after perinatal loss. DESIGN: A systematic review and meta-analysis of randomized controlled trials DATA SOURCES: English language articles published from database inception to 19 November 2019 were systematically retrieved from eight electronic databases (CINAHL, Cochrane, EMBASE, ProQuest Dissertations and Theses Global, PsycINFO, PubMed, Scopus, Web of Science). REVIEW METHODS: The Cochrane Risk of Bias tool was used to conduct quality appraisal of each individual article and data was analyzed using Review Manager 5.3. A meta-analysis of randomized controlled trials was conducted using a random-effect model. RESULTS: Among this review's 17 included studies, 15 studies' results were included in the meta-analyses. The remaining two studies were summarized narratively. Meta-analyses revealed that psychosocial interventions significantly reduced depression (95% CI: -0.64 to -0.29, Z = 5.17, p = <0.00001), anxiety (95% CI: -0.50 to -0.18, Z = 4.21, p < 0.0001) and grief (95% CI: -0.71 to -0.32, Z = 5.12, p < 0.0001). CONCLUSION: Psychosocial interventions are effective in improving depression, anxiety, and grief amongst parents with perinatal loss. Psychosocial care can be provided by medical healthcare professionals and expanded with technology-assisted implementation. STUDY REGISTRATION NUMBER: CRD42019145526.

A Novel Compound Sclerosant: Polidocanol-Bleomycin Foam.

BACKGROUND: Foam sclerotherapy is an effective treatment strategy for venous malformations. Both polidocanol (POL) and bleomycin are effective sclerosants; however, no studies have reported POL-bleomycin foam. OBJECTIVE: To introduce a method for producing POL-bleomycin foam and evaluate the stability of POL-bleomycin foam with bleomycin concentrations. MATERIALS AND METHODS: Group A: 2 mL of 1% POL + 8 mL of air; Group B: 2 mL of 1% POL + 3 U bleomycin + 8 mL of air; Group C: 2 mL of 1% POL + 6 U bleomycin + 8 mL of air; Group D: 2 mL of 1% POL + 12 U bleomycin + 8 mL of air. Tessari method was used for foam generation. The foam half-life time (FHT) was used to evaluate foam stability. Five recordings were made for each group. RESULTS: The FHT was 148.6 ± 2.9 seconds in Group A, 148.8 ± 4.0 seconds in Group B, 148.4 ± 2.6 seconds in Group C, and 148.8 ± 1.6 seconds in Group D. The FHT in different groups showed no significant differences. CONCLUSION: The POL-bleomycin foam was prepared successfully and its FHT was as long as the POL foam.