Articles in Cardiology (37)
+ Create ArticleLa sindrome di Wellens è una variante pre-infartuale ad alto rischio di angina instabile, caratterizzata da alterazioni elettrocardiografiche specifiche nelle derivazioni precordiali V2-V4 che indicano una stenosi critica dell'arteria coronaria discendente anteriore sinistra (LAD) prossimale. La gestione richiede un'angiografia coronarica urgente e la rivascolarizzazione per prevenire un infarto miocardico anteriore esteso.
L'endocardite infettiva è un'infezione microbica grave delle valvole cardiache, dell'endocardio o dei dispositivi intracardiaci, caratterizzata da vegetazioni, batteriemia persistente ed embolia sistemica. La diagnosi si basa sui criteri di Duke modificati, mentre il trattamento richiede una terapia antibiotica mirata e un tempestivo intervento chirurgico valvolare.
La fibrillazione atriale è la tachiaritmia cardiaca sostenuta più comune al mondo, caratterizzata da un'attivazione elettrica atriale caotica e inefficace. La gestione clinica si basa sulla prevenzione tromboembolica tramite DOAC, sul controllo della frequenza o del ritmo cardiaco e sulla correzione dei fattori di rischio associati.
La cardiomiopatia di Takotsubo, nota anche come sindrome del cuore spezzato, è una cardiopatia non ischemica caratterizzata da una disfunzione ventricolare sinistra transitoria e reversibile, tipicamente innescata da stress emotivi o fisici intensi. La gestione clinica è prevalentemente di supporto, focalizzata sulla stabilizzazione emodinamica e sulla prevenzione delle complicanze acute.
La sindrome di Dressler è una pericardite infiammatoria ritardata che compare tipicamente da 2 a 10 settimane dopo un infarto miocardico o un intervento cardiochirurgico, sostenuta da una reazione autoimmune. La gestione clinica tempestiva si basa sull'impiego di acido acetilsalicilico ad alte dosi e colchicina, evitando i FANS non aspirinici per preservare la guarigione miocardica.
I criteri di Sgarbossa sono un sistema di punteggio utilizzato per facilitare la diagnosi di infarto miocardico acuto (Acute Myocardial Infarction - MI) nei pazienti che presentano un blocco di branca sinistra (Left Bundle Branch Block - LBBB) all'elettrocardiogramma, condizione che spesso oscura le tipiche alterazioni del tratto ST. Un punteggio totale pari o superiore a 3 indica un'elevata probabilità di ischemia miocardica acuta, guidando tempestivamente la terapia di riperfusione.
Le onde T di De Winter rappresentano un pattern elettrocardiografico specifico indicativo di occlusione prossimale dell'arteria coronaria discendente anteriore sinistra (LAD), considerato equivalente a STEMI e richiedente riperfusione urgente.
La sindrome di Brugada è una canalopatia cardiaca ereditaria rara caratterizzata da un aumentato rischio di aritmie ventricolari e morte cardiaca improvvisa (Sudden Cardiac Death, SCD). La diagnosi si basa su tipici pattern elettrocardiografici, in particolare il sopraslivellamento del tratto ST nelle derivazioni precordiali destre.
L'embolia polmonare è l'ostruzione dell'albero arterioso polmonare causata da un trombo, solitamente originato da una trombosi venosa profonda. Rappresenta la terza causa di morte cardiovascolare acuta e richiede una stratificazione tempestiva del rischio per indirizzare il paziente verso la terapia anticoagulante o trombolitica appropriata.
L'infarto miocardico acuto con sopraslivign_point_ST (STEMI) è una sindrome coronarica acuta pericolosa per la vita causata dall'occlusione trombotica completa di un'arteria coronaria epicardica, che provoca ischemia e necrosi miocardica transmurale. Il riconoscimento tempestivo tramite elettrocardiogramma (ECG) a 12 derivazioni entro 10 minuti dal primo contatto medico e la rivascolarizzazione immediata mediante angioplastica coronarica percutanea primaria (PCI primaria) sono fondamentali per ridurre la mortalità.
La pericardite acuta è una sindrome infiammatoria del pericardio che rappresenta una causa comune di dolore toracico acuto non ischemico nei dipartimenti d'emergenza. La diagnosi richiede la presenza di almeno due dei criteri della Società Europea di Cardiologia (ESC), e il trattamento di prima linea prevede l'associazione di FANS o aspirina con la colchicina per prevenire le recidive.
The Jones criteria for acute rheumatic fever comprise standardized clinical and laboratory manifestations used to diagnose acute rheumatic fever following a group A streptococcal infection. Diagnosis requires documentation of preceding streptococcal infection combined with either two major manifestations or one major and two minor manifestations.
The HAS-BLED score is a validated clinical risk prediction tool used to estimate the 1-year risk of major bleeding among patients with atrial fibrillation receiving oral anticoagulant therapy. It serves to identify and guide the optimization of modifiable bleeding risk factors rather than to contraindicate life-saving anticoagulation.
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Levine sign is a classic clinical gesture where a patient clenches their fist over the sternum to describe ischemic chest discomfort, serving as an intuitive indicator of myocardial ischemia. The gold-standard diagnostic modality is invasive coronary angiography, while first-line acute medical management involves dual antiplatelet therapy, anticoagulation, and emergent reperfusion via primary percutaneous coronary intervention.
Peripheral vascular stigmata of infective endocarditis reflecting immune-complex deposition (Osler nodes) and septic microembolization (Janeway lesions); diagnosed via blood cultures and transthoracic/transesophageal echocardiography (modified Duke criteria); treated with prolonged parenteral antimicrobial therapy and surgical intervention when indicated.
A Graham Steell murmur is a high-pitched, decrescendo early diastolic murmur resulting from functional pulmonary regurgitation secondary to severe pulmonary hypertension. Transthoracic echocardiography with color Doppler serves as the gold-standard diagnostic test, while first-line therapy targets the underlying aetiology—such as pulmonary arterial hypertension, left heart disease, or chronic thromboembolism—using targeted pulmonary vasodilators, diuretics, and management of right ventricular failure.
The Austin Flint murmur is a mid-to-late diastolic rumble heard best at the apex in severe chronic aortic regurgitation, caused by the regurgitant jet preventing normal opening of the anterior mitral valve leaflet. The gold-standard diagnostic test is transthoracic and transesophageal echocardiography with color Doppler imaging, and first-line treatment involves afterload reduction and prompt surgical aortic valve replacement when clinical indications are met.
Quincke pulse and De Musset sign are classic peripheral haemodynamic physical examination signs most characteristically associated with chronic severe aortic regurgitation (AR) and wide pulse pressure states. Transthoracic echocardiography (TTE) with Doppler quantification serves as the gold-standard diagnostic test by measuring regurgitant volume, effective regurgitant orifice area (EROA), and holodiastolic flow reversal in the descending thoracic aorta, while surgical aortic valve replacement (SAVR) represents definitive treatment for symptomatic severe AR or severe AR with left ventricular systolic dysfunction.
Kussmaul sign is the paradoxical rise or failure of jugular venous pressure to decline during inspiration, caused by impaired right heart filling from increased thoracic compliance resistance. The gold-standard diagnostic investigation is right heart catheterization demonstrating equalization of diastolic pressures, and first-line treatment targets the underlying etiology, such as urgent surgical pericardiectomy for constrictive pericarditis.
The Vaughan Williams classification is a standard pharmacological system categorizing antiarrhythmic agents into classes I through IV based on their primary cellular electrophysiological mechanisms, guiding rational antiarrhythmic therapy, arrhythmia suppression, and rate-control strategies. The gold-standard diagnostic assessment involves 12-lead electrocardiography and electrophysiological testing to quantify intervals and channel blockade. First-line management depends on the specific arrhythmia mechanism and structural heart disease status, utilizing targeted Vaughan Williams class agents alongside cardioversion or ablation when indicated.
The New York Heart Association (NYHA) functional classification is a four-tier subjective grading system assessing the severity of heart failure symptoms based on patient limitation during physical activity, serving as a primary tool for therapeutic monitoring and prognostic stratification.
The Thrombolysis in Myocardial Infarction (TIMI) risk score is a validated prognostic clinical scoring tool used for risk stratification in patients presenting with unstable angina or non-ST-segment elevation myocardial infarction (NSTEMI), guiding early invasive versus conservative management strategies. The gold-standard diagnostic assessment combines serial high-sensitivity cardiac troponin testing with invasive coronary angiography, while first-line treatment protocols involve immediate antiplatelet therapy, anticoagulation, and risk-adapted coronary revascularization.
The HEART score is a validated emergency department risk-stratification tool for acute chest pain that categorizes patients into low, intermediate, or high risk for major adverse cardiovascular events (MACE) within 30 days. The gold-standard diagnostic approach combines serial high-sensitivity cardiac troponin testing with coronary computed tomography angiography (CCTA), and first-line protocol mandates early risk stratification coupled with immediate aspirin (162–325 mg PO) and sublingual nitroglycerin for suspected acute coronary syndrome.
The CHA2DS2-VASc score is a validated clinical prediction rule used to estimate the risk of thromboembolic stroke in patients with non-valvular atrial fibrillation to guide oral anticoagulation therapy. The gold-standard diagnostic assessment involves calculating cumulative risk points based on clinical comorbidities, and first-line therapy utilizes direct oral anticoagulants (DOACs) or vitamin K antagonists when indicated.
Hyperkalaemia ECG progression represents the orderly, stepwise electrophysiological alterations of the cardiac conduction system induced by rising extracellular potassium levels, shifting the resting membrane potential closer to threshold and causing conduction block. The gold-standard diagnostic modality is a 12-lead electrocardiogram coupled with a verified serum potassium assay, while first-line acute stabilization requires immediate intravenous membrane stabilization via calcium gluconate or calcium chloride.
Spodick sign is an electrocardiographic manifestation of acute pericarditis characterized by a downsloping TP segment during Stage I, aiding in differentiation from ST-elevation myocardial infarction (STEMI). Diagnosis is confirmed via 12-lead ECG and echocardiography, while first-line management involves high-dose nonsteroidal anti-inflammatory drugs (NSAIDs) combined with colchicine.
Electrical alternans is an electrocardiographic phenomenon characterized by beat-to-beat variation in QRS complex amplitude, morphology, or axis in an alternating pattern, classically reflecting severe structural swinging of the heart within a large pericardial effusion or intracellular calcium cycling abnormalities. The gold-standard diagnostic modality is 12-lead electrocardiography corroborated by bedside echocardiography, with definitive management directed at treating the underlying etiology, such as urgent pericardiocentesis for cardiac tamponade.
Left ventricular hypertrophy (LVH) on electrocardiography is defined by elevated QRS voltages and repolarization abnormalities resulting from increased left ventricular muscle mass. The gold-standard diagnostic investigation is cardiac magnetic resonance imaging or echocardiography, and first-line therapy centers on rigorous afterload reduction and blockade of the renin-angiotensin-aldosterone system.
Bifascicular and trifascicular blocks represent chronic or acute disturbances of the intraventricular conduction system, diagnosed via 12-lead ECG, with permanent cardiac pacing indicated upon progression to high-grade block or symptomatic bradycardia.
Second-degree atrioventricular (AV) blocks comprise Mobitz type I (Wenckebach), characterized by progressive PR interval prolongation prior to a non-conducted P wave due to AV nodal delay, and Mobitz type II, characterized by constant PR intervals with sudden non-conducted P waves due to infra-nodal His-Purkinje pathology. Gold-standard diagnosis is established via 12-lead electrocardiography and ambulatory telemetry, while first-line management ranges from observation or atropine (0.5 mg IV) for symptomatic Mobitz I to prompt transvenous pacing and permanent pacemaker implantation for Mobitz II.
Long QT syndrome is a cardiac channelopathy characterized by delayed myocardial repolarization, predisposing patients to life-threatening ventricular arrhythmias such as Torsades de Pointes and sudden cardiac death. Diagnosis is established via 12-lead ECG demonstrating a prolonged corrected QT interval (QTc) combined with genetic testing and clinical scoring, while first-line management centers on non-selective beta-blocker therapy and avoidance of QT-prolonging triggers.
Torsades de pointes is a distinct form of polymorphic ventricular tachycardia characterized by a gradual shifting of the QRS complex axis around the isoelectric baseline in the setting of a prolonged QT interval. The gold-standard diagnostic modality is a 12-lead electrocardiogram (ECG), and first-line acute management entails intravenous magnesium sulfate administration alongside immediate cessation of offending QT-prolonging agents.
Arrhythmogenic right ventricular cardiomyopathy is an inherited desmosomal cardiomyopathy characterized by fibrofatty myocardial replacement, right ventricular structural abnormalities, and life-threatening ventricular arrhythmias. The gold-standard diagnostic modality is cardiovascular magnetic resonance imaging demonstrating regional wall motion abnormalities and late gadolinium enhancement, supported by electrocardiographic detection of epsilon waves, while first-line long-term management involves exercise restriction and beta-blocker therapy alongside implantable cardioverter-defibrillator placement for high-risk patients.
An Osborne wave is a distinct positive deflection (J wave) at the junction of the QRS complex and ST segment on an electrocardiogram, predominantly provoked by severe hypothermia. The gold-standard diagnostic modality is a 12-lead electrocardiogram coupled with core temperature thermometry, and first-line therapy centers on active internal and external rewarming alongside continuous cardiac monitoring.
Aortic dissection is a life-threatening cardiovascular emergency caused by a tear in the aortic intima that allows blood to surge into the media, creating a false lumen. Gold-standard diagnosis is achieved via ECG-gated CT aortography, while initial medical management relies on aggressive anti-impulse therapy coupled with emergency surgical intervention for Stanford Type A lesions.
Cardiac tamponade is a life-threatening medical emergency driven by the accumulation of fluid, blood, or gas within the pericardial space, causing critical elevation of intrapericardial pressure, chambers compression, and severe hemodynamic collapse. Bedside transthoracic echocardiography serves as the gold-standard diagnostic tool, while immediate ultrasound-guided pericardiocentesis or surgical pericardiotomy represents the definitive first-line therapeutic intervention.