Chapter 021 Syncope (Part 1) docx

... (massive acute myocardial infarction) Chapter 021. Syncope (Part 1) Harrison's Internal Medicine > Chapter 21. Syncope Syncope: Introduction Syncope, a transient loss of consciousness ... disease (Table 21 -1). Not infrequently, however, the cause of syncope is multifactorial. Table 21-1 Causes of Syncope I. Disorders of Vascular Tone or Blood Volume A. Re...

Ngày tải lên: 06/07/2014, 12:21

... (Chap. 364). Electroencephalography is indicated if seizures are suspected.[newpage] Chapter 021. Syncope (Part 6) Diagnostic Tests The choice of diagnostic tests should be guided by the ... pulmonary angiography is indicated in patients in whom syncope may be due to pulmonary embolus.In cases of possible cerebrovascular syncope, neuroimaging tests may be indicated, incl...

Ngày tải lên: 06/07/2014, 12:21

... hypoxic-ischemic injury. Chapter 021. Syncope (Part 2) Disorders of Vascular Tone or Blood Volume Disorders of vascular tone or blood volume that can cause syncope include the reflex syncopes and a ... number of conditions resulting in orthostatic intolerance. The reflex syncopes—including neurocardiogenic syncope, situational syncope, and carotid sinus hypersensitivity—sh...

Ngày tải lên: 06/07/2014, 12:21

... response). The Chapter 021. Syncope (Part 3) Situational Syncope A variety of activities, including cough, deglutition, micturition, and defecation, are associated with syncope in susceptible ... occurs at night during or immediately after voiding. Deglutition syncope and defecation syncope occur in men and women. Deglutition syncope may be associated with esophageal...

Ngày tải lên: 06/07/2014, 12:21

... Chapter 021. Syncope (Part 4) Glossopharyngeal Neuralgia Syncope due to glossopharyngeal neuralgia (Chap. 3 71) is preceded by pain in the oropharynx, ... common reason that cardiac output cannot increase. Pericardial tamponade is a rare cause of syncope. Syncope occurs in up to 10% of patients with massive pulmonary embolism and may occur with ... impulse conduction (e.g...

Ngày tải lên: 06/07/2014, 12:21

... in syncope. Urinary incontinence is frequent in seizures and rare in syncope. The return of consciousness is prompt in syncope and slow after a seizure. Mental confusion, Chapter 021. Syncope ... confusion, Chapter 021. Syncope (Part 5) Cerebrovascular Disease Cerebrovascular disease alone rarely causes syncope but may lower the threshold for syncope in patients w...

Ngày tải lên: 06/07/2014, 12:21

... hypertension.Disopyramide (150 mg bid), a vagolytic antiarrhythmic drug with Chapter 021. Syncope (Part 7) Syncope: Treatment The treatment of syncope is directed at the underlying cause. This discussion ... side. Those with intractable syncope due to the cardioinhibitory response to carotid sinus stimulation should undergo permanent pacemaker implantation.Patients with...

Ngày tải lên: 06/07/2014, 12:21

... may begin at this time; however, shivering is not Chapter 017. Fever and Hyperthermia (Part 1) Harrison's Internal Medicine > Chapter 17. Fever and Hyperthermia Fever and Hyperthermia:

Ngày tải lên: 06/07/2014, 12:20

... spinal pattern generators to promote stepping. Chapter 024. Gait and Balance Disorders (Part 1) Harrison's Internal Medicine > Chapter 24. Gait and Balance Disorders Prevalence,

Ngày tải lên: 06/07/2014, 13:20

... wakefulness is termed polysomnography. Polysomnographic profiles define two states of sleep: (1) rapid-eye- movement (REM) sleep, and (2) non-rapid-eye-movement (NREM) sleep. NREM sleep is ... Normal nocturnal sleep in adults displays a consistent organization from night to night (Fig. 28 -1). After sleep onset, sleep usually progresses through NREM stages 1–4 within 45–60 min. Slow-wa...

Ngày tải lên: 06/07/2014, 13:20