Epidemiology & Clinical Spectrum Irritable bowel syndrome (IBS) affects ~10–15% of the global population, with a 2:1 female-to-male predominance. It is classified into subtypes based on stool morphology (Bristol Stool…
Definition & Epidemiology Acute heart failure (AHF) refers to the rapid onset or acute worsening of symptoms and/or signs of heart failure (HF), typically prompting urgent medical evaluation, emergency department…
I. Definition and Classification of Severely Elevated Blood Pressure Severely elevated blood pressure (SEBP) remains a common presenting condition in emergency departments and outpatient clinics. It is critical to distinguish…
Introduction and Indications for Reversal Anticoagulation reversal is indicated in three primary clinical scenarios: Life- or limb-threatening bleeding (e.g., intracranial hemorrhage, retroperitoneal bleed, hematemesis with hemodynamic instability) Overanticoagulation with high bleeding…
Definition and Epidemiology Myocarditis is a heterogeneous group of inflammatory heart diseases characterized by myocardial inflammation in the absence of ischemic etiology, typically driven by immune-mediated mechanisms triggered by infectious,…
Epidemiology & Pathophysiology Overview Pericarditis accounts for ~5% of non–ST-elevation chest pain presentations in emergency departments. Acute pericarditis affects 1–3 cases per 1,000 person-years, with peak incidence in young to…
Epidemiology & Pathophysiology Aortic stenosis (AS) is the most common valvulopathy requiring intervention in adults in developed countries. Its prevalence increases dramatically with age: ~2% in individuals >65 years, rising…
I. Introduction: Prosthetic Valves – Purpose and Clinical Relevance Prosthetic heart valves serve to restore hemodynamic integrity in patients with severe valvular heart disease refractory to medical management. The two…
I. Introduction & Pathobiology Acute promyelocytic leukemia (APL; AML-M3, FAB classification) is a distinct, life-threatening subtype of acute myeloid leukemia (AML) accounting for 10–15% of AML cases in adults and…
Epidemiology and Pathobiology: Clinical Relevance Acute lymphoblastic leukemia (ALL) accounts for ~75% of acute leukemias in children but only ~20% in adults, with a median age at diagnosis of ~65…
Introduction and Pathophysiology Myelodysplastic syndromes (MDS) represent a heterogeneous group of clonal hematopoietic stem cell disorders characterized by: Ineffective hematopoiesis, leading to persistent peripheral blood cytopenias (anemia, neutropenia, thrombocytopenia), Dysplasia…
Epidemiology & Pathogenesis CMML is a clonal hematopoietic stem cell disorder classified under the myelodysplastic/myeloproliferative neoplasm (MDS/MPN) overlap syndromes. It exhibits features of both dysplasia and proliferation, with characteristic persistent…
Definition & Clinical Spectrum Angioedema (AE) is characterized by acute, self-limiting swelling of the dermis, subcutaneous tissue, and/or mucosal layers, typically involving the face (lips, cheeks, periorbital), upper airway (tongue,…
Pathophysiology & Epidemiology – Clinical Relevance Benign prostatic hyperplasia (BPH) is a histopathological diagnosis defined by stromal and epithelial proliferation within the prostatic transition zone—the anatomical region encircling the urethra.…
I. Definition & Epidemiology: Clinical Relevance Erectile dysfunction (ED) is defined as the persistent inability to attain or maintain a penile erection of sufficient rigidity and duration to permit satisfactory…
