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Transient orthostatic hypotension is common in adolescents.
J Pediatr. 2002 Apr; 140(4):418-24.JPed

Abstract

OBJECTIVES

We hypothesized that transient hypotension associated with the symptom of lightheadedness with standing is a common phenomenon in healthy adolescents but may be mistaken for orthostatic intolerance.

STUDY DESIGN

We studied 23 healthy adolescents, combining upright tilt to 70 degrees and to 35 degrees (in 12 patients) with continuous heart rate and blood pressure (BP) measurements. We measured peripheral blood flow and venous pressure in the arms and legs by using venous plethysmography.

RESULTS

Healthy subjects with normal vasoconstrictive responses to sustained upright tilt uniformly have a transient fall in BP during 70 degrees upright tilt that varies from almost undetectable to large decreases in BP easily exceeding the 20-mm Hg threshold for orthostatic hypotension. Large decreases are associated with short-lived symptoms of lightheadedness and are most marked in those with the largest calf blood flow. The higher the flow, the lower the BP falls. There is appropriate reflex tachycardia.

CONCLUSIONS

We conclude that transient orthostatic hypotension is common in many healthy adolescents, especially after prolonged recumbency, and is related to dependent vascular tone.

Authors+Show Affiliations

Department of Pediatric, The Center for Pediatric Hypotension, New York Medical College, Valhalla 10595, USA.

Pub Type(s)

Comparative Study
Evaluation Study
Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

12006955

Citation

Stewart, Julian M.. "Transient Orthostatic Hypotension Is Common in Adolescents." The Journal of Pediatrics, vol. 140, no. 4, 2002, pp. 418-24.
Stewart JM. Transient orthostatic hypotension is common in adolescents. J Pediatr. 2002;140(4):418-24.
Stewart, J. M. (2002). Transient orthostatic hypotension is common in adolescents. The Journal of Pediatrics, 140(4), 418-24.
Stewart JM. Transient Orthostatic Hypotension Is Common in Adolescents. J Pediatr. 2002;140(4):418-24. PubMed PMID: 12006955.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Transient orthostatic hypotension is common in adolescents. A1 - Stewart,Julian M, PY - 2002/5/15/pubmed PY - 2002/6/12/medline PY - 2002/5/15/entrez SP - 418 EP - 24 JF - The Journal of pediatrics JO - J Pediatr VL - 140 IS - 4 N2 - OBJECTIVES: We hypothesized that transient hypotension associated with the symptom of lightheadedness with standing is a common phenomenon in healthy adolescents but may be mistaken for orthostatic intolerance. STUDY DESIGN: We studied 23 healthy adolescents, combining upright tilt to 70 degrees and to 35 degrees (in 12 patients) with continuous heart rate and blood pressure (BP) measurements. We measured peripheral blood flow and venous pressure in the arms and legs by using venous plethysmography. RESULTS: Healthy subjects with normal vasoconstrictive responses to sustained upright tilt uniformly have a transient fall in BP during 70 degrees upright tilt that varies from almost undetectable to large decreases in BP easily exceeding the 20-mm Hg threshold for orthostatic hypotension. Large decreases are associated with short-lived symptoms of lightheadedness and are most marked in those with the largest calf blood flow. The higher the flow, the lower the BP falls. There is appropriate reflex tachycardia. CONCLUSIONS: We conclude that transient orthostatic hypotension is common in many healthy adolescents, especially after prolonged recumbency, and is related to dependent vascular tone. SN - 0022-3476 UR - https://www.unboundmedicine.com/medline/citation/12006955/Transient_orthostatic_hypotension_is_common_in_adolescents_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-3476(02)22728-6 DB - PRIME DP - Unbound Medicine ER -