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814 Possible Causes for Hypoventilation, Syncope

  • Altitude Sickness

    Transient ischemic attacks, cerebral venous thrombosis, seizures, syncope, double vision, and scotomas are some of the well-documented neurological disturbances at high altitude[] Persons with acute altitude sickness hypoventilate at high altitude compared with persons without symptoms.[] High Altitude Syncope Occasionally, travelers to moderate altitude will experience a brief fainting episode during the first 24 hours.[]

  • Heart Disease

    Coronary diseases present as severe chest pain, palpitation, sweating, anxiety, fear, and syncope.[] Hypoventilation and cor pulmonale due to chronic upper airway obstruction. J Pediatr . 1965 ; 67 :198-203. Crossref Google Scholar 30 Alexander JK.[] […] include: Fluttering in your chest Racing heartbeat (tachycardia) Slow heartbeat (bradycardia) Chest pain or discomfort Shortness of breath Lightheadedness Dizziness Fainting (syncope[]

  • Hypokalemia

    One patient (a 38-year-old female) had experienced recurrent episodes of syncope due to ventricular tachyarrhythmias (VTAs) accompanied by QT prolongation (QTc: 750ms) when[] Other muscular dysfunction includes cramping, fasciculations, paralytic ileus, hypoventilation, hypotension, tetany, and rhabdomyolysis.[] […] vomiting Polyuria, nocturia or polydipsia Altered mental status Signs of Ileus Hypotension Cardia arrest Bradycardia or Tachycardia Premature atrial or ventricular beats Hypoventilation[]

  • Sinus Arrest

    Cough syncope is a syndrome in which dizziness or syncope occurs after prolonged bouts of cough.[] We present a case of a 52-year-old man whose only features of astrocytoma consisted of episodes of apnea and sinus arrest followed by prolonged alveolar hypoventilation.[] A 78-year-old woman developed arrhythmia, hiccup, and cough syncope attacks. Neurological examination was not remarkable. Cough syncope occurs after hiccup attacks.[]

  • Hyperventilation

    We present the case of a patient who presented with recurrent syncope.[] Respiratory dysfunction, particularly central hypoventilation, is common in anti-N-methyl D-aspartate (NMDA) receptor encephalitis.[] Moderate hyperventilation, when compared with moderate hypoventilation, in patients with cardiovascular disease undergoing intravenous anesthesia increased net cerebral lactate[]

  • Sick Sinus Syndrome

    Congenital central hypoventilation syndrome: diagnosis, management, and long-term outcome in thirty-two children. J Pediatr. 1992;120(3):381–7.[] […] inhibitor treatment, she was free from syncope thereafter.[] In this case report we describe an 80-year-old man with sick sinus syndrome (SSS) who developed syncope attacks.[]

  • Arnold Chiari Malformation

    A craniospinal pressure dissociation with brainstem compression may be involved in the pathogenesis of headache and syncope.[] After three months of treatment with acetazolamide 20 mg/kg/24 h no further episodes of hypoventilation or hypoxemia were observed and further treatment could be discontinued[] Case 1 was a 14-yr-old male patient, who developed severe alveolar hypoventilation and needed long-term mechanical ventilation via a tracheostomy.[]

  • Pulmonary Hypertension

    Common presenting features are exertional dyspnea, lethargy, fatigue, exertional syncope and chest pain, peripheral edema, anorexia and right upper quadrant pain.[] This case shows the therapeutic potential of vasoactive medications for alveolar hypoventilation-related PH.[] Ordinary physical activity causes undue dyspnoea or fatigue, chest pain, or near syncope.[]

  • Dissecting Aortic Aneurysm

    Following a further syncopal attack with severe thoracic pain, the patient was hospitalized at the intensive care unit.[] The precise cause of left lung hypoventilation remained unknown until necropsy.[] Type A: 71% Type B: 44% Back pain: 53% Type A: 46% Type B: 64% Abdominal Pain : 35% Type A: 22% Type B: 42% Migrating pain: 17% Type A: 15% Type B: 19% Associated Findings Syncope[]

  • Congestive Heart Failure

    […] on the right side of the heart, and it may be more easily felt Eyes or feet may be puffy as the right heart fails Chest pain Palpitations (irregular heartbeat) Dizziness Syncope[] Chronic kidney disease, heart failure, sedatives, and hypoventilation might have contributed to refractory hypotension due to severe acidosis in this case.[] People whose heart failure is primarily low output heart failure are more likely to have low blood pressure, lightheadedness, and syncope.[]

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