Preoperative Assessment of a Patient Undergoing Bariatric Surgery.

Over the past few decades, obesity rates in the United States have risen drastically, and with this, there has been a rising demand for bariatric surgery. As such, anesthesiologists need to be familiar with the challenges presented by patients seeking bariatric surgery. Obesity causes pathophysiologic changes which may affect decision-making during the management of these patients. Patients seeking bariatric surgery also have a long, prescribed preoperative course that offers anesthesiologists the opportunity to be involved earlier during the pre-surgical evaluation and optimization process.

Comparison of success rate and intraocular pressure spikes between selective laser trabeculoplasty and micropulse laser trabeculoplasty in African American and Hispanic patients.

AIM: To examine the efficacy and safety of micropulse laser trabeculoplasty (MLT) versus selective laser trabeculoplasty (SLT) in a large cohort of primarily African American and Hispanic patients. METHODS: A single center retrospective comparative cohort review conducted at Cook County Health facilities that included patients with a diagnosis of open angle glaucoma or ocular hypertension who received an SLT or MLT procedure between January 2017 and May 2021. RESULTS: Totally 131 eyes of 99 patients were analyzed. The 77 eyes received SLT and 54 received MLT. Seven out of 77 eyes in the SLT group (9.1%) and 1 out of 54 eyes in the MLT group (1.9%) had an IOP spike (defined as > 5 mm Hg) at either 1h or 1wk after procedure (P=0.05, Chi-squared test with Haldane-Anscombe correction). The procedure failure rate at one year was 50% for SLT and 48% for MLT (P=0.31). CONCLUSION: MLT has a significantly lower incidence of pressure spikes and a similar treatment failure rate at 1-year post-procedure, demonstrating that it is a reasonable alternative compared to SLT.

COVID-19 and non-communicable diseases in complex vulnerable populations: evidence from Jordan.

More than three in 10 people living in Jordan are immigrants, with the majority being Palestinian and Syrian refugees, who have a very similar non-communicable diseases (NCDs) profile to the hosting Jordanian community. We conducted a rapid review of the literature of studies, reports, and documents on the evidence of the impact of COVID-19 on vulnerable populations in Jordan with regard to NCD during the first year of the pandemic. COVID-19-related mobility constraints and often lack of awareness of NCDs put additional burden on vulnerable populations like refugees and migrants, in particular on non-registered migrants. COVID-19 pandemic and associated mitigation measures led to disruption in routine health services, significantly impacting people living with NCDs. Ensuring to deliver a people-centered and inclusive approach that works well during COVID-19 is of paramount importance toward Universal Health Coverage (all people have access to the health services they need, when and where they need them, without financial hardship).

Changes in public knowledge and perceptions about antibiotic use and resistance in Jordan: a cross-sectional eight-year comparative study.

BACKGROUND: Resistance to antibiotics is a growing problem, worldwide and particularly in developing countries like Jordan. Raising public awareness on appropriate antibiotic use is crucial to combat this problem. The current study describes the change in public Knowledge and attitudes towards the use of antibiotics over a period of 8 years. METHODS: Two cross-sectional studies were performed 8 years apart on Jordanians of different age groups, and social settings, residing in Amman, Jordan. Convenience non-probability sampling techniques were used. In 2010, a questionnaire was distributed in paper form, whereas in 2018 snowball sampling was used to disseminate an identical electronic questionnaire. Chi-square test and post hoc analysis were done using the z-test to compare column proportions, adjustment for multiple testing using the Bonferroni method. Multiple logistic regression was used to adjust for case mix for each survey. Comparisons were made across the two studies and within each study. RESULTS: A total of 711 participants in 2010 and 436 participants in 2018 were surveyed. Over the 8-year period, there was a significant improvement in the beliefs regarding the use of antibiotics such as disagreeing to keeping left over antibiotics for later use from 57 to 70% (p < 0.05) and disagreeing to buying antibiotics without physicians' consent increased from 80 to 89% (P value < 0.001). There was no significant change in the beliefs that support self-medication such as: using antibiotics from a friend (72 to 77%) buying antibiotics without a prescription (42 to 45%), and getting information about medication use from leaflet without referring to a health care professional (60 to 63%). There were some areas of confusion regarding antibiotic range of effectiveness, and origin of resistance. Agreement about antibiotic resistance being a problem in Jordan increased significantly from 44 to 60% (p < 0.001). In addition, there was a significant increase in the percentage of participants who said that they don't request antibiotics from physicians (56 to 75% (P ≤ 0.001) and who said they would trust physicians' decisions about the necessity of antibiotics (70 to 83% P < 0.05). CONCLUSION: Findings indicate the need for better suited, and more inclusive, public educational campaigns.

Retinal Telemedicine.

PURPOSE OF REVIEW: An update and overview of the literature on current telemedicine applications in retina. RECENT FINDINGS: The application of telemedicine to the field of Ophthalmology and Retina has been growing with advancing technologies in ophthalmic imaging. Retinal telemedicine has been most commonly applied to diabetic retinopathy and retinopathy of prematurity in adult and pediatric patients respectively. Telemedicine has the potential to alleviate the growing demand for clinical evaluation of retinal diseases. Subsequently, automated image analysis and deep learning systems may facilitate efficient processing of large, increasing numbers of images generated in telemedicine systems. Telemedicine may additionally improve access to education and standardized training through tele-education systems. SUMMARY: Telemedicine has the potential to be utilized as a useful adjunct but not a complete replacement for physical clinical examinations. Retinal telemedicine programs should be carefully and appropriately integrated into current clinical systems.

Anti-Vascular Endothelial Growth Factor and the Evolving Management Paradigm for Retinopathy of Prematurity.

Diagnosis and management of pediatric retinal conditions such as retinopathy of prematurity (ROP) have been evolving significantly with the availability of new technology and treatments. New imaging systems, telemedicine, tele-education, and anti‒vascular endothelial growth factor (VEGF) intravitreal pharmacotherapy are all changing the way we diagnose and deliver care to children with pediatric retinal disease. Fluorescein angiography and optical coherence tomography have the potential to improve our diagnosis and management of disease, and with improvements in retinal imaging, telemedicine is becoming more feasible. Telemedicine, tele-education, and computer-based image analysis may overcome many of the challenges we face in providing adequate care and access for children with pediatric retinal disease. Treatment options have also expanded with the use of anti-VEGF therapy. Although the use of intravitreal anti-VEGF for ROP has been documented in the literature for more than a decade, many questions still remain about its safety in the pediatric patient population. Several ongoing prospective studies are exploring the utility of anti-VEGF agents for ROP, with attention to the optimal dose of drug, systemic safety, and our understanding of recurrence of disease. This review aims to provide an update on current diagnostic and therapeutic modalities, focusing predominantly on the role of anti-VEGF therapy, for the management of ROP and other pediatric retinal vascular diseases.

Awareness of antibiotic use and antimicrobial resistance in the Iraqi community in Jordan.

INTRODUCTION: Antimicrobial resistance is a serious global health concern. It has considerable implications on societies' health and resources. In Jordan, there is a large Iraqi community due to the ongoing turmoil in Iraq. Unfortunately, health awareness and practices of this community are under-investigated due to scarcity of research. This paper assesses the awareness of antibiotic use and antimicrobial resistance in the Iraqi community residing in Amman, Jordan. Their level of interaction with health care professionals regarding antibiotics and differences in their antibiotic use between Iraq and Jordan are also discussed. METHODOLOGY: A cross-sectional questionnaire-based survey involving randomly selected Iraqis residing in Amman, Jordan was conducted. RESULTS: The study involved 508 participants. Sixty-two percent of participants agreed with buying antibiotics without a prescription, 29% agreed with obtaining antibiotics from friends or relatives, and 46% agreed with keeping leftover antibiotics for future use. Furthermore, 60% disagreed with not completing an antibiotic course and almost 90% of the sample listed viral diseases as an indication for antibiotics. Forty-four percent of participants abided by physicians' instructions on antibiotic use. Half of the participants believed that pharmacists provided instructions on antibiotics all the time, whereas physicians were perceived to do so by 29% of participants. CONCLUSIONS: Gaps exist in knowledge of antibiotic use and reasons for antimicrobial resistance among Iraqis residing in Jordan. These gaps should serve in planning educational campaigns to raise the community's awareness of responsible antibiotic use. Law enforcement to restrict access to antibiotics is also pivotal to tackle their misuse.

Characterization of enzymatic properties of human ribonucleotide reductase holoenzyme reconstituted in vitro from hRRM1, hRRM2, and p53R2 subunits.

Ribonucleotide reductase (RR) is a highly regulated enzyme in the deoxyribonucleotide synthesis pathway. RR is responsible for the de novo conversion of ribonucleoside diphosphates to deoxyribonucleoside diphosphates, which are essential for DNA synthesis and repair. Besides two subunits, hRRM1 and hRRM2, p53R2 is a newly identified member of RR family that is induced by ultraviolet light in a p53-dependent manner. To understand the molecular interaction of RR subunits, we employed a eukaryotic expression system to express and purify all three subunits. After in vitro reconstitution, the results of [(3)H]CDP reduction assay showed that both eukaryotic recombinant hRRM2 and p53R2 proteins could interact with hRRM1 to form functional RR holoenzyme. The reconstituted RR activity was time-dependent and the reaction rate reached the plateau phase after 40min incubation. No matter the concentration, RR holoenzyme reconstituted from p53R2 and hRRM1 could only achieve about 40-75% kinetic activity of that from hRRM2 and hRRM1. The synthetic C-terminal heptapeptide competition assays confirmed that hRRM2 and p53R2 share the same binding site on hRRM1, but the binding site on hRRM1 demonstrated higher affinity for hRRM2 than for p53R2. In allosteric regulation assay, the effect of activation or inhibition of hRRM1 with ATP or dATP suggested that these effectors could regulate RR activity independent of different RR small subunits. Taken together, the eukaryotic expression system RR holoenzyme will provide a very useful tool to understand the molecular mechanisms of RR activity and the interactions of its subunits.

The human ribonucleotide reductase subunit hRRM2 complements p53R2 in response to UV-induced DNA repair in cells with mutant p53.

Ribonucleotide reductase (RR) is responsible for the de novo conversion of the ribonucleoside diphosphates to deoxyribonucleoside diphosphates, which are essential for DNA synthesis and repair. RR consists of two subunits, hRRM1 and hRRM2. p53R2 is a new RR family member. Because the majority of human tumors possess mutant p53, it is important to know the molecular mechanism by which mutant p53 regulates RR and to what extent. In this study, we investigated the expression and function of p53R2 and hRRM2 after UV treatment in human prostate cancer PC3 cells, which possess mutant p53 with a truncated COOH-terminal, and in human oropharyngeal cancer KB cells, which possess wild-type p53. p53R2 (analyzed by Western blot and standardized relative to Coomassie Blue-stained band) was down-regulated in PC3 cells and up-regulated in KB cells after UV exposure. In contrast, hRRM2 was up-regulated by UV in both PC3 cells and KB cells. hRRM2 and p53R2 mRNA levels were assessed by Northern blot, and the results paralleled that of the Western blot. Coimmunoprecipitation assays using agarose-conjugated goat antihuman RRM1 antibody confirmed that the p53R2 binding to hRRM1 decreased in PC3 cells but increased in KB cells after UV treatment. hRRM2 binding to hRRM1 increased in both cell lines under the same conditions. These results suggest that PC3 cells are deficient in both transcription of p53R2 and binding to hRRM1 in response to UV irradiation. Confocal microscopy further confirmed that these findings were not due to translocation of hRRM2 and p53R2 from the cytoplasm to the nucleus. RR activity was measured following UV treatment and shown to increase in PC3 cells. It was unchanged in proportional of KB cells. The RR activity is consistent with the expression of hRRM2 seen in the Western blots. Thus, we hypothesize that hRRM2 complements p53R2 to form RR holoenzyme and maintain RR activity in PC3 cells after UV treatment. To further confirm this hypothesis, we examined the effect of RRM2 inhibitors on cells exposed to UV. In PC3 cells, hydroxyurea inhibited hRRM2 and resulted in increased sensitivity to UV irradiation. We also examined the effect of UV treatment on the colony-forming ability of cells transfected with hRRM2 as well as p53R2 sense or antisense expression vectors. Expression of antisense hRRM2 in PC3 cells led to decreased hRRM2 expression and resulted in greater sensitivity to UV than observed in wild-type PC3 cells. Taken together, we conclude that UV-induced activation of p53R2 transcription and binding of p53R2 to hRRM1 to form RR holoenzyme are impaired in the p53-mutant cell line PC3.