[Use of intravenous hydralazine in treatment of hypertensive crisis]. 1991

L A Cesar, and R Amato, and E Pfeferman, and C V Serrano, and J A Ramires, and G Bellotti, and F Pileggi
Instituto do Coração do Hospital das Clínicas, FMUSP.

OBJECTIVE To evaluate the efficacy and safety of intravenous hydralazine in arterial hypertension. METHODS 12 patients, mean age 45.33 +/- 15.82.8 men and 4 women all of them with systolic (S) arterial pressure (AP) greater than or equal to 180 and or diastolic (D) greater than or equal to 126 mmHg with symptoms like headache, in characteristic thoracic pain and others but without an hypertensive emergency neither acute manifestation of hypertensive encephalopathy through fundi examination were studied. The AP was taken 10 minutes after rest (initial) and 5, 15, 30 and 60 min (final) after intravenous administration of hydralazine-HCL (5 mg) which was repeated when at least 20% AP reduction was not achieved. RESULTS The initial and final SAP, DAP and heart rate (HR) were 208 +/- 19.4 and 176 +/- 17.2 (p less than 0.0001), 133 +/- 11.3 and 112 +/- 11.5 (p less than 0.001) and 72 +/- 12.9 and 80 +/- 15.5 (NS), respectively. Side effects related to the drug were observed in 3 (25%) patients. One had symptomatic orthostatic hypotension, the second had precordial pain with ST-T changes compatible with myocardial ischemia and the third presented a thorax and abdominal cutaneous erythema, but all of them reversible. CONCLUSIONS Intravenous hydralazine-HC1 is an alternative when rapid arterial pressure reduction is needed.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D004341 Drug Evaluation Any process by which toxicity, metabolism, absorption, elimination, preferred route of administration, safe dosage range, etc., for a drug or group of drugs is determined through clinical assessment in humans or veterinary animals. Evaluation Studies, Drug,Drug Evaluation Studies,Drug Evaluation Study,Drug Evaluations,Evaluation Study, Drug,Evaluation, Drug,Evaluations, Drug,Studies, Drug Evaluation,Study, Drug Evaluation
D004630 Emergencies Situations or conditions requiring immediate intervention to avoid serious adverse results. Emergency
D005260 Female Females
D006339 Heart Rate The number of times the HEART VENTRICLES contract per unit of time, usually per minute. Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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