book_title | section_heading | file_path | line_start | line_end | snippet -----------+-----------------+-----------+------------+----------+--------- Harrison’s Principles of Internal Medicine 22E (2025, McGraw Hill Medical) | INITIAL EVALUATION | /textbooks/9781265977061/9781265977061_block28.md | 585 | 592 | ...Therefore, a patient may have an >>>ECG<<< >>>diagnosis<<< before seeing a physician (Fig. 253-3). Exercise testing is useful for assessing exercise-related symptoms and potentially evoking the arrhythmia. Additional evaluation for underlying cardiac >>>disease<<< and to exclude potentially dangerous... Bradley and Daroff's Neurology in Clinical Practice | Investigations of Patients with Syncope | /textbooks/9780323642613/9780323642613_block1.md | 470 | 472 | ...Echocardiography is useful in the >>>diagnosis<<< of valvular >>>heart<<< >>>disease<<<, cardiomyopathy, atrial myxoma, prosthetic valve dysfunction, pericardial effusion, aortic dissection, and congenital >>>heart<<< >>>disease<<<. Holter monitoring detects twice as many >>>ECG<<< abnormalities as those discovered on a routine >>>ECG<<< and... GOLDMAN-CECIL MEDICINE INTERNATIONAL EDITION, 2 VOLUME SET | CANADIAN CARDIOVASCULAR SOCIETY* | /textbooks/9780323930345/9780323930345_block6.md | 1971 | 1983 | >>>Heart<<< failure or history of ischemic, arrhythmic, obstructive, or valvular >>>heart<<< >>>disease<<< Abnormal >>>ECG<<<: arrhythmia, conduction >>>disease<<<, new ischemia, or evidence of prior myocardial infarction Systolic blood pressure <90mm Hg Comorbid conditions: age >60 years, dyspnea, hematocrit <30%, hypertension, cerebrovascular... GOLDMAN-CECIL MEDICINE INTERNATIONAL EDITION, 2 VOLUME SET | Resting Electrocardiogram | /textbooks/9780323930345/9780323930345_block7.md | 1732 | 1734 | ...The presence of new ST-T wave abnormalities on the resting >>>ECG<<<, however, can be helpful in the >>>diagnosis<<< of coronary artery >>>disease<<< and may correlate with the severity of the underlying >>>heart<<< >>>disease<<<. In addition to focal ST-T... Harrison’s Principles of Internal Medicine 22E (2025, McGraw Hill Medical) | DIFFERENTIAL DIAGNOSIS | /textbooks/9781265977061/9781265977061_block29.md | 633 | 637 | The differential >>>diagnosis<<< of a patient with biventricular failure manifesting predominantly as edema, in association with a thick left ventricle but without a history of severe hypertension, is small. Hypertensive >>>heart<<< >>>disease<<< is usually associated with left ventricular hypertrophy on... Henry's Clinical Diagnosis and Management by Laboratory Methods | BACKGROUND | /textbooks/9780323673204/9780323673204_block6.md | 449 | 455 | ...Common acro- nyms used to describe >>>heart<<< >>>disease<<< are listed in Table 19.1. MIs can be categorized by whether they are accompanied by charac- teristic changes on the electrocardiogram (>>>ECG<<<), a recording of electrical activity in the >>>heart<<<. Only... Braunwald’s Heart Disease, 2 Vol Set A Textbook of Cardiovascular Medicine | Management | /textbooks/9780323722193/9780323722193_block7.md | 2375 | 2384 | ...Physical examination focuses on signs of underlying >>>heart<<< >>>disease<<<. A 12-lead >>>ECG<<< of the arrhythmia should be obtained whenever possible to confirm the >>>diagnosis<<< and assess its likely origin, which is often a clue to underlying >>>heart<<< >>>disease<<<. Any... Harrison’s Principles of Internal Medicine 22E (2025, McGraw Hill Medical) | DIAGNOSIS OF SA NODAL DISEASE | /textbooks/9781265977061/9781265977061_block27.md | 2920 | 2922 | ...role in the >>>diagnosis<<< and management of SA node dysfunction. The correla- tion between symptoms and slow >>>heart<<< rate or pauses is essential in determining whether bradycardia may be considered pathologic and necessitating intervention. Baseline >>>ECG<<< can detect baseline sinus [... Output truncated due to length. 800 tokens/3063 characters removed ...]