Heart failure with preserved ejection fraction (HFpEF) is a condition that develops in the course of many diseases and conditions, and its pathophysiology is still not well understood, but the involvement of programmed types of cell death in the development of this type of heart failure is becoming increasingly certain. In addition, drugs already widely used in clinical practice, with a good safety profile and efficacy demonstrated in large-group clinical trials, seem to be exerting their beneficial effects on cardiovascular health. Perhaps new drugs that reduce the susceptibility of cells to programmed types of cell death are under investigation and may improve the prognosis of patients with HFpEF. In this article, we summarize the current knowledge about the pathogenesis of HFpEF and the role of programmed types of cell death in its development. Additionally, we have described the future directions of research that may lead to the improvement of a patient’s prognosis and potential treatment.
Postoperative cerebral venous sinus thrombosis (CVST) is a rare complication of the retrosigmoid approach. To address the lack of literature, we performed a retrospective analysis. The thromboses were divided into those demonstrating radiological (rCVST) and clinical (cCVST) features, the latter diagnosed during hospitalization. We identified the former by a lack of contrast in the sigmoid (SS) or transverse sinuses (TS), and evaluated the closest distance from the craniotomy to quantify sinus exposure. We included 130 patients (males: 52, females: 78) with a median age of 46.0. They had rCVST in 46.9% of cases, most often in the TS (65.6%), and cCVST in 3.1% of cases. Distances to the sinuses were not different regarding the presence of cCVST (p = 0.32 and p = 0.72). The distance to the SS was not different regarding rCVST (p = 0.13). However, lower exposure of the TS correlated with a lower incidence of rCVST (p = 0.009). When surgery was performed on the side of the dominant sinuses, rCVSTs were more frequent (p = 0.042). None of the other examined factors were related to rCVST or cCVST. Surgery on the side of the dominant sinus, and the exposing of them, seems to be related with rCVST. Further prospective studies are needed to identify the risk factors and determine the best management.
10 July 2024 in Prospects in Pharmaceutical Sciences
Zolpidem, widely prescribed for short-term management of insomnia, is a non-benzodiazepine hypnotic agent. It carries a high potential for abuse and an elevated risk of suicide. Overdose generally results in mild central nervous system depression, though severe outcomes are possible when co-ingested with other CNS depressants. Standard treatments include gastric lavage, flumazenil administration, and intravenous fluids. This case report describes a 66-year-old female admitted after an apparent suicidal ingestion of approximately 200 mg of zolpidem. Upon admission, she was unconscious, with bradypnea and hypotension, scoring 5 on the Glasgow Coma Scale. Gastric lavage and N-acetylcysteine were administered due to elevated liver enzymes suggesting concomitant paracetamol poisoning, which was confirmed by urine tests. Flumazenil temporarily improved her condition, and she was subsequently transferred to the Intensive Care Unit for mechanical ventilation. Her clinical status stabilized, leading to extubation on the second day and transfer to the Psychiatry Unit. This case highlights the critical need for timely intervention and continuous monitoring in zolpidem overdose scenarios, particularly when polypharmacy is involved. In instances of respiratory failure following zolpidem overdose, it is imperative to investigate the potential co-ingestion of additional substances.
Background: Stroke burden, measured by DALYs, reveals a growing concern in sub-Saharan Africa. Ischemic stroke, exacerbated by modifiable risk factors like hypertension and household air pollution, poses a significant health challenge. Regional disparities, economic development, and healthcare inefficiencies underscore the need for targeted interventions and further research.Objective: This study aims to analyze trends in the burden of ischemic stroke across specific regions in sub-Saharan Africa from 2000 to 2019. The objective is to identify key changes in stroke burden progression and highlight modifiable risk factors.Material and methods: Utilizing World Health Organization (WHO) data from 2000 and 2019, national estimates of ischemic stroke DALYs in 49 sub-Saharan African countries were collected. DALYs were calculated per 100,000 population to reduce the impact of population size. Statistical analyses and visual representations using MapChart were employed to interpret the trends.Results: The study reveals wide variations in ischemic stroke DALYs changes across sub-Saharan African countries from 2000 to 2019. Predominantly, countries in the Eastern and Southern regions experienced adverse increases, while those in the Central and West regions mostly exhibited declines in DALYs. Countries such as Lesotho, Zimbabwe, and Mauritius, saw the most significant DALYs increases, whereas Rwanda, Malawi, and Equatorial Guinea experienced the most favorable changes.Conclusions: Stroke is a pressing health concern in sub-Saharan Africa. Modifiable risk factors like hypertension and household air pollution necessitate targeted interventions. Tailored healthcare policies, reinforced health systems and comprehensive research into region-specific risk factors are crucial to alleviate stroke-related morbidity and mortality in the region. Addressing these challenges is vital to mitigate the increasing burden of stroke in the particular regions of sub-Saharan Africa.
10 July 2024 in Prospects in Pharmaceutical Sciences
The history of ketamine began in the 1960s. Ketamine is a specific anesthetic drug that exhibits analgesia, has a stabilizing impact on the cardiovascular system and does not significantly depress the respiratory system. It is responsible for causing the so-called dissociative effect. The effects of ketamine depend on the dose. Its mechanism of action is based primarily on the blockade of N-methyl D-aspartic acid receptors (NMDA) in the central nervous system. Due to its favorable action profile and small number of contraindications, ketamine is becoming an increasingly popular drug. In medicine, it is commonly used as an analgesic and an anesthetic. Studies conducted over recent years have noted that it can be effective in conditions such as: status epilepticus, status asthmaticus, agitation, alcohol dependence and alcohol withdrawal syndrome, depression, and suicidal thoughts. This paper reviews current reports on the uses of ketamine, beneficial especially to physicians with the Specialty in emergency medicine.
10 July 2024 in Prospects in Pharmaceutical Sciences
Critical conditions frequently involve disturbances in blood gas analysis and electrolyte imbalances. Sodium bicarbonate has seen expanded medical use in recent years. The European Resuscitation Council (ERC) Guidelines endorse sodium bicarbonate for hyperkalemia, malignant hyperthermia, and specific drug intoxications. Its potential roles in treating intracranial hypertension and symptomatic hyponatremia are also being explored. However, its application in emergency departments (ED) remains inconsistent, particularly in profound metabolic acidosis cases. We conducted a review of sodium bicarbonate’s therapeutic uses. The evolving understanding of sodium bicarbonate's role in emergency medicine and intensive care highlights both its potential applications and associated risks. While not universally beneficial, especially in lactic acidosis, it may aid specific patient subgroups, such as those with acute kidney injury. Its use in hyperkalemia, intracranial hypertension and diabetic ketoacidosis (DKA) also presents mixed results, with potential benefits in particular contexts. Further large-scale, randomized controlled trials are needed to develop precise guidelines, ensuring its safe and effective use tailored to individual patient needs.