The Effectiveness of a Preoperative Blood Pressure Screening Program to Identify Undiagnosed Hypertension in Ambulatory Surgery Patients

NCT03678207 | Withdrawn DMC

• 1 other identifier: 2018-0914
• Study Type: observational
• Target: N/A
• Locations: 1 country
• Sites: 1

Brief Summary

Elevated blood pressure is the largest contributing risk factor to all-cause and cardiovascular mortality. According to the U.S. Preventive Services Task Force, hypertension affects nearly 30% of the adult population. Many patients remain undiagnosed, despite the consensus that screening and timely diagnosis is paramount. In this study, 108 ambulatory surgery patients with elevated blood pressure (160/90) that are not yet formally diagnosed with hypertension will be enrolled and alerted of their high blood pressure by a co-investigator MD. They will request permission to follow-up with the patient and the patient's primary care provider 6 months after the initial phone call to check in on the status of their diagnosis and any action taken (lifestyle changes, medication) to alleviate their high blood pressure. Patients will receive a follow-up letter/email at 6 and 3 months to remind them of their potential diagnosis.

Conditions

Hypertension; Perioperative Hypertension

Outcome Measures

Primary Outcomes (1)

• Diagnosis of hypertension 6 months after surgery

  The number of patients with previously undiagnosed hypertension that have obtained a formal diagnosis of hypertension

  6 months postoperative

Secondary Outcomes (2)

• PCP follow up 6 months after surgery

  6 months postoperative

• Hypertension treatment 6 months after surgery

  6 months postoperative

Study Arms (1)

Potential Undiagnosed HTN

Other: Anesthesiologist phone call

Interventions

Anesthesiologist phone call OTHER

Patients receiving ambulatory surgery with no prior diagnosis of hypertension but have elevated blood pressure prior to surgery. Patients will receive a phone call from a participating anesthesiologist 1-3 days after surgery notifying them of their high blood pressure and obtaining oral consent to participate in the study. Patients will receive reminders via mail about following up with their PCP.

Potential Undiagnosed HTN

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Patients receiving elective ambulatory surgery with a preoperative blood pressure measurement greater than 160 (systolic) and/or 90 (diastolic)

You may qualify if:

• Patients undergoing elective ambulatory surgery
• Patients with a pre-operative elevated BP defined as greater than 160/90
• Patients above the age of 18
• English speaking

You may not qualify if:

• Patients with a pre-existing diagnosis of HTN
• Patients who are taking a hypertensive medication
• Patients who had a pre-operative surgical screening assessment

Sponsors & Collaborators

• Hospital for Special Surgery, New York: lead

Study Sites (1)

Hospital for Special Surgery

New York, New York, 10021, United States

Location

MeSH Terms

Conditions

Hypertension

Condition Hierarchy (Ancestors)

Vascular Diseases; Cardiovascular Diseases

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 18, 2018
• First Posted: September 19, 2018
• Study Start: June 20, 2018
• Primary Completion: June 19, 2019
• Study Completion: June 19, 2019
• Last Updated: February 12, 2026

Record last verified: 2019-10

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)