Use of mobile learning applications as an innovative method for the teaching of biochemistry.

BACKGROUND: Traditional teaching methods of biochemistry provide effective tools for knowledge transmission, but are considered less engaging with students. Smartphone applications may provide suitable alternatives to compensate for the shortcomings of traditional teaching methods. PURPOSE: This study aimed to assess the effectiveness of smartphone applications as a complementary method for learning biochemistry. METHODOLOGY: A total of 32 students, from the College of Applied Medical Sciences, University of Bisha, Saudi Arabia, were recruited. Students used available mobile applications, and their performance was monitored through assignments, presentations, practical evaluations, and pre- and post-tests. A self-administered structured questionnaire was used to survey the students' perceptions. It was validated by students enrolled at the College of Applied Medical Science, interns, and medical educators. It was checked for item appropriateness and comprehensiveness using face and content validity. RESULTS: Around 75% of the students found the mobile applications useful in learning biochemistry, 50% believed that they were easy to use and 100% believed that the breadth of the knowledge presented by these applications was comprehensive. The pedagogical effect of the use of mobile applications in learning biochemistry showed statistically significant differences in student performances post-use and pre-use of mobile applications with P values of 0.000, 0.028, 0.023, and 0.000 for tests, assignments, practical evaluation, and presentations, respectively. CONCLUSION: Students have a positive perception of the use of mobile applications, as it has significantly improved their academic performance in biochemistry.

Postoperative takotsubo cardiomyopathy: an illustration of the electrocardiographic features that raise suspicion for takotsubo.

Takotsubo cardiomyopathy is an increasingly recognized clinical disorder mimicking acute coronary syndrome. It is usually preceded by physical or emotional stress and recovery of the left ventricular systolic function occurs in most cases within 1-4 weeks. Takotsubo cardiomypathy can masquerade as ST-segment elevation myocardial infarction when chest pain, ST-segment elevation, and high cardiac biomarkers coexist. ST-segment elevation is encountered in approximately half of the cases of takotsubo cardiomyopathy and its pattern is indistinguishable at times from ST-segment elevation myocardial infarction. However, several electrocardiographic criteria have been shown to characterize takotsubo cardiomyopathy. Awareness of these electrocardiographic features has several diagnostic and therapeutic implications. Nevertheless, these electrocardiographic criteria alone cannot reliably differentiate between both entities, and the diagnosis of takotsubo cardiomyopathy is only established after coronary angiography confirms the absence of occlusive coronary artery disease and the characteristic apical ballooning is evident on left ventriculogram (in the case of the apical form). Herein, we present a case of postoperative takotsubo cardiomyopathy and discuss the various electrocardiographic features that raise suspicion for this transient cardiac syndrome.

Unprotected left main coronary stenting as alternative therapy to coronary bypass surgery in high surgical risk acute coronary syndrome patients.

Acute coronary syndrome has a high mortality rate that dramatically increases in the presence of left main coronary artery (LMCA) disease. Over the past decades, coronary artery bypass graft (CABG) surgery has been commonly accepted as the standard of care for patients with LMCA stenosis and is still considered the first-line treatment in current practice guidelines. Percutaneous coronary intervention (PCI) of protected and unprotected LMCA has gained popularity and is increasingly utilized with comparable outcomes to CABG in randomized controlled trials. In-stent restenosis and the need for revascularization provide the main obstacle to LMCA revascularization. The advent of better PCI equipment, stents, ablative devices, intravascular ultrasound, hemodynamic support devices and antithrombotic agents have ignited a renewed interest in the practice of LMCA PCI, especially for high surgical risk patients who are neither candidates nor agreeable to CABG surgery. Herein, we review the studies comparing unprotected LMCA stenting with CABG surgery in regard to 3 main endpoints: mortality, major adverse events and the incidence of repeat revascularization.

Sustainability and effectiveness of a quality improvement project to improve handoffs to night float residents in an internal medicine residency program.

BACKGROUND: Handoff is the process in which patient care is transitioned from one provider to another. In teaching hospitals, handoffs are frequent, and resident duty hour restrictions have increased the use of night float staff. To date, few studies have focused on long-term sustainability and effectiveness of a handoff quality improvement project. OBJECTIVE: The objective of our resident-driven quality improvement project was to evaluate the effectiveness and sustainability of a standardized template for handoff quality in a community hospital internal medicine program. METHODS: We used a multistep continuous quality improvement approach. Problems in the handoff process were identified through process mapping and anonymous needs assessment of the residents. A group of residents and faculty identified problems during biweekly discussions, created a standardized template, and adopted a new handoff process. We audited handoffs and surveyed residents at 3 and 9 months after implementation to assess effectiveness and sustainability. RESULTS: Before the intervention, only 40% of residents reported regular morning handoff. Using the standardized template, statistically significant, sustained improvements were seen in morning handoff frequency (59% preintervention, 90% at 3 months, 89% at 9 months), along with decreases in unreported overnight events (84% preintervention, 58% at 3 months, 50% at 9 months) and uncertainty about decisions because of poor handoffs (72% preintervention, 49% at 3 months, 37% at 9 months). Statistically significant decreases in missed content (69%-46%) and copy-and-paste behavior (78%-38%) at 3 months were not sustained. CONCLUSIONS: We demonstrated sustained improvements in unreported events and uncertainty caused by poor handoffs. Initial improvements in missed content and copy-and-paste behavior that were not sustained suggest a need for ongoing reinforcement and monitoring of handoff quality.

Licorice abuse: time to send a warning message.

Licorice extract has always been recognized as a sweetener and a thirst quencher. Its nutritive value is overrated by many who consume significant amounts and are prone to complications. Glycyrrhetic acid, the active metabolite in licorice, inhibits the enzyme 11-ß-hydroxysteroid dehydrogenase enzyme type 2 with a resultant cortisol-induced mineralocorticoid effect and the tendency towards the elevation of sodium and reduction of potassium levels. This aldosterone-like action is the fundamental basis for understanding its health benefits and the wide spectrum of adverse effects. Herein, we present a comprehensive review of licorice along with the reported complications related to excess intake. Despite its apparent use in a few clinical scenarios, the daily consumption of licorice is never justified because its benefits are minor compared to the adverse outcomes of chronic consumption. The review highlights the importance of investigating the dietary habits and herbal remedies which are being used worldwide on cultural and habitual bases rather than reliable scientific evidence. Licorice is a US Food and Drug Administration (FDA) approved food supplement used in many products without precise regulations to prevent toxicity. Increased awareness among the public is required through TV commercials, newspapers, internet sites, magazines and product labels regarding the upper limit of ingestion and health hazards associated with excess intake. We hope that this review will serve as a warning message that should be transmitted from physicians to patients to avoid excessive licorice intake as well as a message to the FDA to start regulating the use of this substance.

Simultaneous left anterior descending and right coronary stent thrombosis after aspirin withdrawal.

ST-segment elevation myocardial infarction is usually caused by plaque rupture and subsequent thrombosis of a single culprit vessel. In rare occasions, simultaneous thrombosis of 2 coronary arteries occurs, which is usually associated with a worse prognosis. Although surgery provokes hemodynamic stress, leading in some instances to myocardial ischemia due to supply/demand mismatch, other factors may also contribute to postoperative myocardial infarction. We present a case of postoperative simultaneous left anterior descending and right coronary stent thrombosis that followed cessation of long-term aspirin therapy in a patient with stable coronary artery disease. This case raises concerns with drug-eluting stents due to the higher potential for late stent thrombosis related to delayed endothelialization of the stent struts. Physicians should be very cautious when deciding to withdraw antiplatelet therapy preoperatively to avoid rebound coronary thrombosis.

Occult pneumothorax, revisited.

Pneumothorax is a recognized cause of preventable death following chest wall trauma where a simple intervention can be life saving. In cases of trauma patients where cervical spine immobilization is mandatory, supine AP chest radiograph is the most practical initial study. It is however not as sensitive as CT chest for early detection of a pneumothorax. "Occult" pneumothorax is an accepted definition of an existing but usually a clinically and radiologically silent disturbance that in most patients can be tolerated while other more urgent trauma needs are attended to. However, in certain patients, especially those on mechanical ventilation (with subsequent increase of intrapleural air with positive pressure ventilation), missing the diagnosis of pneumothorax can be deleterious with fatal consequences. This review will discuss the occult pneumothorax in the context of 3 radiological examples, which will further emphasize the entity. Because a negative AP chest radiograph can dangerously delay its recognition, we recommend that any trauma victim presenting to the emergency department with symptoms of respiratory distress should be screened with either thoracic ultrasonography or chest CT scan to avoid missing a pneumothorax.