Epidemiology of Hypertensive Emergency

NCT ID: NCT00005240

Last Updated: 2015-12-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

210 participants

Study Classification

OBSERVATIONAL

Study Start Date

1989-10-31

Study Completion Date

1992-12-31

Brief Summary

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To test the hypotheses that hypertensive emergency was associated with non-compliance with antihypertensive medication, low level of contact with the medical care system, and alcohol abuse and cigarette smoking. Also, to describe the clinical characteristics of patients hospitalized with hypertensive emergency including morbidity, mortality, and cost, and the extent to which hypertensive emergency occured among previously diagnosed and treated hypertensives.

Detailed Description

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BACKGROUND:

While less frequent than in the era before effective treatment for hypertension, hypertensive emergency remains a relatively common cause of hospital admission in some sub-populations. In 1989, hypertensive emergency accounted for approximately 60 admissions per year to the Medical Service at Presbyterian Hospital, and a somewhat higher proportion of intensive care unit admissions and utilization. The importance of hypertensive emergency may have been underestimated because the International Classification of Diseases discharge codes included only malignant hypertension, a severe form comprising only about half of the admissions for hypertensive emergency. There had been almost no epidemiologic studies of hypertensive emergency since 1969, and very little was known about risk factors.

DESIGN NARRATIVE:

A matched case-control study design was used. Cases were obtained from admissions to the Medical Service at Presbyterian Hospital. Morbidity and mortality data were obtained by follow-up of the case series.

Conditions

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Cardiovascular Diseases Heart Diseases Hypertension

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

1\. Patients admitted in the emergency room and for the medical and surgical services at the Presbyterian Hospital and Harlem Hospital Center in New York City

* patients with incidents of hypertensive emergency or hypertensive urgency
* hypertensive patients with other acute conditions who were admitted to the hospital or were treated in the emergency room and released

Exclusion Criteria

1. Under 21 years of age
2. Pregnancy
Minimum Eligible Age

21 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role collaborator

Columbia University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Steven Shea, MD

Role: PRINCIPAL_INVESTIGATOR

Hamilton Southworth Professor of Medicine and Professor of Epide, Dept of Medicine General Medicine

Locations

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Columbia University

New York, New York, United States

Site Status

Countries

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United States

References

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Shea S, Misra D, Ehrlich MH, Field L, Francis CK. Correlates of nonadherence to hypertension treatment in an inner-city minority population. Am J Public Health. 1992 Dec;82(12):1607-12. doi: 10.2105/ajph.82.12.1607.

Reference Type BACKGROUND
PMID: 1456334 (View on PubMed)

Shea S, Misra D, Ehrlich MH, Field L, Francis CK. Predisposing factors for severe, uncontrolled hypertension in an inner-city minority population. N Engl J Med. 1992 Sep 10;327(11):776-81. doi: 10.1056/NEJM199209103271107.

Reference Type BACKGROUND
PMID: 1501654 (View on PubMed)

Other Identifiers

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R01HL038260

Identifier Type: NIH

Identifier Source: secondary_id

View Link

CUMC ID unknown (1121)

Identifier Type: -

Identifier Source: org_study_id