Outcomes of Patients with Monoclonal Gammopathy of Undetermined Significance with and without Atrial Fibrillation: A Retrospective Cohort Analysis of the Nationwide Inpatient Sample Database.

BACKGROUND: Monoclonal gammopathy of undetermined significance (MGUS) is a non-malignant precursor of multiple myeloma (MM). MGUS has been suggested to be associated with a higher risk of cardiovascular diseases, including AFIB, but it is still unclear whether this association is real. Studies are lacking on the impact of atrial fibrillation on health outcomes in this population. The association of AFIB in this population is lagging and merits further investigation. METHODS: The study conducted a retrospective analysis of the Nationwide Inpatient Sample (NIS) for 2018, including adult patients with primary diagnoses of MGUS and AFIB. Patients were divided into two groups based on AFIB presence. Outcomes assessed included complications, length of stay, mortality, hospital charges, and discharge disposition. RESULTS: The study included 9007 patients with MGUS of whom 2404 had AFIB. Patients with both MGUS and AFIB had higher rates of acute kidney injury [AKI] (31.5% vs. 27.5%; p = 0.002) and pericarditis (2% vs. 1.2%; p = 0.029). They also had longer hospital stays (5 vs. 4 days; p < 0.001) and higher hospitalization costs ($43,729 vs. $41,169; p < 0.001). CONCLUSIONS: The study showed that the prevalence of AFIB in MGUS patients is high. Patients with AFIB had increased rates of complications (AKI and pericarditis) and higher mortality compared to patients without AFIB. Further studies screening for AFIB in this patient population are warranted.

Heparin-Induced Thrombocytopenia in Chronic Hemodialysis Patients.

Heparin-induced thrombocytopenia (HIT) is a disorder originating from exposure to heparin and has a spectrum of presentation ranging from asymptomatic positive antibodies to thrombotic complications. When symptomatic, it is associated with morbidity and mortality. The incidence of HIT in the ESRD population is yet to be defined. End-stage renal disease (ESRD) patients are at particular risk due to constant exposure to heparin. The main treatment of HIT is to avoid heparin and pursue alternative anticoagulants. Since 1 of the main advantages of heparin in ESRD patients is the ease of its use due to non-renal clearance, the use of alternative anticoagulants poses yet another challenge for this population due to cost, availability, and adverse effects on ESRD patients. Argatroban seems like the best alternative to heparin in hemodialysis (HD) patients due to its liver clearance. Despite having limited studies in HIT, direct oral anticoagulants (DOACs) were added as a potential treatment for HIT, with apixaban favored in kidney dysfunction as it is the least dependent on kidney clearance. Other treatment modalities exist but are still being studied in ESRD patients. The presence of HIT antibodies is not always associated with clinical syndrome, and some studies suggested that heparin antibodies are transient, and the reintroduction of heparin is still being evaluated as a treatment option. Hence, HIT is a challenging diagnosis in ESRD patients, a population that has frequent exposure to anticoagulants, and a risk/benefit ratio should be weighed between the risk of progression to symptomatic HIT and the benefit of switching to a non-heparin anticoagulant bearing in mind the difficulties associated with the latter.

Granulocyte-colony stimulating factor in decompensated liver cirrhosis: a meta-analysis of four randomized controlled trials.

BACKGROUND: Decompensated liver cirrhosis (DC) has high mortality, but liver transplantation is limited due to organ scarcity and contraindications for transplantation. Granulocyte-colony stimulating factor (GCSF) shows potential for liver disease treatment with its regenerative and immunomodulatory properties. To assess the controversial use of GCSF in DC, a meta-analysis of randomized controlled trials (RCTs) compared survival benefits in patients receiving GCSF plus standard medical therapy (SMT) versus SMT alone. METHODS: A literature search was performed in four databases from data inception up to December 2022, and all registered randomized controlled (RCTs) evaluating GCSF-based therapies for cirrhotic patients were included. RESULTS: A study combining four RCTs assessed the impact of GCSF with SMT in 595 patients with decompensated cirrhosis. The results indicated that GCSF + SMT led to higher odds of survival compared to SMT alone [risk ratio 1.28, 95% CI (1.08-1.5)]. Heterogeneity existed among the studies, but overall, GCSF showed potential in improving survival. The intervention group exhibited improved Child-Pugh-Turcotte scores [-2.51, CI (-4.33 to -0.70)], and increased CD34 levels, but no significant improvement in MELD scores. These findings suggest GCSF may benefit patients with decompensated cirrhosis in terms of survival and liver function. CONCLUSION: These results suggest that the combination of GCSF and SMT may have a positive impact on the survival rate and improvement in CPT score in patients with DC. Further RCTs are needed to shed more light on this promising modality in end-stage liver disease.

A Curious Case of an Anomalous Right Coronary Artery.

Single coronary artery (SCA) is an unusual congenital anomaly, seen by diagnostic coronary angiography. Absence of the right coronary artery (RCA) is one of the rarest coronary artery anomalies occurring when the artery fails to develop in the right atrioventricular (AV) groove. Herein, we describe the case of a 58-year-old man presenting with new onset decompensated congestive heart failure found to have a congenitally absent right coronary ostium. The AV groove extended such that the left circumflex artery supplied the domain of the RCA. Such coronary artery anomalies are rare, and we aim to shed further insight into these congenital processes so that operators may remain vigilant of them in their practice.

Impact of a hospital-based educational intervention on dietary salt-related knowledge and behaviour in a cardiac care unit population in Lebanon.

BACKGROUND: Cardiovascular disease is the most common cause of morbidity and mortality worldwide. Numerous strategies have been effective in reducing cardiovascular disease risk, from pharmacological approaches to lifestyle modification interventions. One of these strategies includes the reduction in dietary sodium which in turn reduces cardiovascular risk by reducing high blood pressure, perhaps the most important cardiovascular risk factor. METHODS: We evaluated an educational dietary salt reduction intervention in a cardiac care unit population in Lebanon, assessing salt related knowledge and behaviours before and after administering an evidence-based educational leaflet to patients. RESULTS: Salt-related knowledge improved significantly immediately post-intervention and subsequently fell on 4-week follow-up, but remained above baseline. Three of the four salt-related behaviours measured improved on 4-week follow-up: trying to buy low-salt foods increased from 54% to 74% (P=0.007), adding salt at the table reduced from 44% to 34% (P=0.03) and trying to buy food with no added salt increased from 24% to 52% (P=0.02) of the cohort. Adding salt during cooking did not differ significantly. A trend towards improved behavioural risk category in the cohort overall was observed on follow-up (P=0.07), 32% of participants were categorised as high behavioural risk pre-intervention, reducing to 17% on follow-up. Multi-ordered regression modelling identified being in the high-risk behavioural category at baseline as a predictor of being in the high-risk or moderate-risk category on follow-up. CONCLUSIONS: This hospital-based educational intervention had a modestly positive impact on salt-related knowledge and behaviour, with participants in the highest behavioural risk category at baseline being most resistant to behavioural improvement.

Stress, Burnout and Coping Strategies in Preclinical Medical Students.

It is acknowledged that physicians do not seek the same expert aid for themselves as they would offer their patients. In their preclinical years, medical students appear to espouse comparable behavior. To many, medicine is described as a never-ending path that places the student under heavy stress and burnout from the beginning, leaving him/her vulnerable and with insufficient coping methods. Hence, the objective of this study is to 1) explore the prevalence of stress and burnout among preclinical medical students, and 2) propose solutions to decrease stress and burnout and improve medical education in the preclinical years. A detailed scholarly research strategy using Google Scholar, Scopus, Embase, MEDLINE and PubMed was implemented to highlight key themes that are relevant to preclinical medical students' stress and burnout. Stress varied among different samples of medical students and ranged between 20.9% and 90%. Conversely, burnout ranged between 27% and 75%. Methods that help in reducing the incidence of stress and burnout by promoting strategies that focus on personal engagement, extracurricular activities, positive reinterpretation and expression of emotion, student-led mentorship programs, evaluation systems, career counseling and life coaching should be adopted.

Extracurricular activities associated with stress and burnout in preclinical medical students.

This study aims to assess the prevalence of stress and burnout among preclinical medical students in a private university in Beirut, Lebanon, and evaluate the association between extracurricular involvement and stress and burnout relief in preclinical medical students. A cross-sectional survey was conducted on a random sample of 165 preclinical medical students. Distress level was measured using the 12-item General Health Questionnaire (GHQ-12) while that of burnout was measured through the Maslach Burnout Inventory-Student Survey (MBI-SS). The MBI-SS assesses three interrelated dimensions: emotional exhaustion, cynicism, and academic efficacy. Extracurricular activities were divided into four categories: physical exercise, music, reading, and social activities. All selected participants responded. A substantial proportion of preclinical medical students suffered from stress (62%) and burnout (75%). Bivariate and multivariate regression analyses revealed that being a female or a 1st year medical student correlated with higher stress and burnout. Music-related activities were correlated with lower burnout. Social activities or living with parents were associated with lower academic efficacy. The high stress and burnout levels call for action. Addressing the studying conditions and attending to the psychological wellbeing of preclinical medical students are recommendations made in the study.