HIgh Versus STAndard Blood Pressure Target in Hypertensive High-risk Patients Undergoing Major Abdominal Surgery (HISTAP)

September 26, 2023 updated by: Antonio Messina, Humanitas Clinical and Research Center

HIgh Versus STAndard Blood Pressure Target in Hypertensive High-risk Patients: The HISTAP Randomized Clinical Trial.

This study is a multicenter randomized controlled trial comparing two strategies of mean arterial blood pressure management (MAP ≥ 80mmHg vs MAP ≥ 65 mmHg) in high-risk surgical patients undergoing elective laparotomic/laparoscopic surgery.

Study Overview

Detailed Description

Intraoperative hypotension has been associated with major postoperative complications after non-cardiac surgery. However, is is still unclear the optimal intraoperative mean arterial pressure (MAP) target in the subgroup of those patient with an history of hypertension at home, and at risk of developing postoperative complications.

The objective of this study is to assess the effects of an intraoperative blood pressure management strategy aiming at keeping the MAP ≥ 80mmHg), as compared to the conventional practice (to maintain intraoperative MAP ≥ 65mmHg), on a composite outcome considering the death rate and the incidence of major events in patient scheduled for elective laparotomic/laparoscopic surgery.

The primary outcome is a composite of 30-days from operation mortality rate and at least one major organ dysfunction including the renal, respiratory, cardiovascular and neurologic systems or new onset of sepsis and septic shock occurring by day 7 after surgery.

Study Type

Interventional

Enrollment (Estimated)

636

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Abruzzo
      • Chieti, Abruzzo, Italy
        • Not yet recruiting
        • Department of Anesthesia, Critical Care and Pain Medicine, SS. Annunziata Hospital
        • Contact:
          • Salvatore Maurizio Maggiore
    • Emilia Romagna
      • Modena, Emilia Romagna, Italy
        • Not yet recruiting
        • Department of Anesthesia and Intensive Care, University Hospital of Modena
        • Contact:
          • Massimo Girardis
    • Lazio
      • Roma, Lazio, Italy
        • Not yet recruiting
        • Policlinico A. Gemelli
        • Contact:
          • Massimo Antonelli
    • Milano
      • Rozzano, Milano, Italy, 20089
    • Puglia
      • Foggia, Puglia, Italy
        • Recruiting
        • Ospedali Riuniti Foggia- Università di Foggia
        • Contact:
          • Lucia Mirabella
        • Contact:
    • Sicilia
      • Cefalù, Sicilia, Italy
      • Messina, Sicilia, Italy
        • Not yet recruiting
        • Division of Anesthesia and Intensive Care, University of Messina, Policlinico "G. Martino"
        • Contact:
          • Alberto Noto
      • Palermo, Sicilia, Italy
        • Not yet recruiting
        • Department of Surgical Oncological and Oral Science, University of Palermo
        • Contact:
          • Andrea Andrea Cortegiani
    • Toscana
      • Firenze, Toscana, Italy, 50134
        • Recruiting
        • Careggi University Hospital
        • Contact:
          • Stefano Romagnoli, MD
    • Veneto
      • Verona, Veneto, Italy
        • Not yet recruiting
        • Unit of Anesthesiology and Intensive Care B, Department of Surgery, Dentistry, Gynecology and Pediatrics, AOUI-University Hospital Integrated Trust of Verona
        • Contact:
          • Katia Donadello

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion criteria (all the following)

  1. Adult patients ≥ 60 years
  2. History of chronic hypertension requiring home therapy.
  3. Scheduled for major elective abdominal surgery (laparoscopic, robotic or laparotomic)
  4. Expected surgical duration of at least 3 hours.
  5. Needing invasive arterial and hemodynamic monitoring as decided by the attending anesthetist, according to the rules of good clinical practice of each involved center.

AND

At increased risk of postoperative complications (at least one of the following):

  1. American Society of Anesthesiologists (ASA) class 3 or 4
  2. Known or documented history of coronary artery disease (angina, myocardial infarction or acute coronary syndrome).
  3. Known or documented history of peripheral vascular disease.
  4. Known or documented history of heart failure requiring treatment.
  5. Ejection fraction less than 30% (echocardiography)
  6. Signs of diastolic moderate to severe dysfunction or chronic hypertensive cardiomyopathy (echocardiography)
  7. Moderate or severe valvular heart disease (echocardiography)
  8. Diagnosis of Chronic Obstructive Pulmonary Disease (COPD) Radiographically confirmed or according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) criteria.
  9. Diabetes currently treated with an oral hypoglycemic agent and/or insulin
  10. Morbid obesity (BMI ≥35 kg/m2)
  11. Preoperative serum albumin <30 g/l
  12. Anaerobic threshold (if done) <14 ml/kg/min
  13. Exercise tolerance equivalent to six metabolic equivalents (METs) or less as defined by American College of Cardiology/American Heart Association guidelines

Exclusion criteria

  1. Refusal of consent
  2. Chronic kidney disease with glomerular filtration rate <30 ml/min/1.73 m2 or requiring renal-replacement therapy for end-stage renal disease
  3. Acute cardiovascular event, including acute or decompensated heart failure and acute coronary syndrome (within prior 30 days).
  4. Urgent or time-critical surgery
  5. Aortic or Renal vascular surgery (including nephrectomy)
  6. Liver Surgery
  7. Neurosurgery
  8. Surgery for palliative treatment only or ASA physical status 5
  9. Pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: MAP 80
Intervention group: intraoperative mean blood pressure target > 80 mmHg. Treatment of hypotension (defined as a mean blood pressure of below 80 mmHg) using intravenous bolus or continuous infusion of vasopressors, or fluids using a dedicated algorithm considering the pulse pressure or stroke volume variation and the mini fluid challenge to optimize mean blood pressure values.
In both the group, the target MAP can be maintained by means of bolus of ephedrine (2.5 mg). The maximal dose for the ephedrine allowed is 25 mg (10 boluses of 2.5 mg), after this threshold a continuous infusion of norepinephrine will be started
Other Names:
  • Ephedrine bolus
In both the group, the target MAP can be maintained by means of bolus of ephedrine (2.5 mg) or Etilefrine (1 mg). The continuous infusion of norepinephrine, as decided by the attending anesthetist, may be started at any point of the intraoperative period. The starting dose of norepinephrine is the lowest needed to reach the predefined MAP target.
Other Names:
  • norepinephrine infusion
The maximal dose for the etilefrine allowed is 10 mg (10 boluses of 1 mg), after this threshold a continuous infusion of norepinephrine will be started
PPV, SVV and mini_FC will guide fluid bolus administration during an episode of intraoperative hypotension, following two predefined algorithms for laparotomic/non laparotomic surgery
Other Names:
  • Hemodynamic optimization
Other: MAP 65
Control group: intraoperative mean blood pressure target > 65 mmHg. Treatment of hypotension (defined as a mean blood pressure of below 65 mmHg) using intravenous bolus or continuous infusion of vasopressors, or fluids using a dedicated algorithm considering the pulse pressure or stroke volume variation and the mini fluid challenge to optimize mean blood pressure values.
In both the group, the target MAP can be maintained by means of bolus of ephedrine (2.5 mg). The maximal dose for the ephedrine allowed is 25 mg (10 boluses of 2.5 mg), after this threshold a continuous infusion of norepinephrine will be started
Other Names:
  • Ephedrine bolus
In both the group, the target MAP can be maintained by means of bolus of ephedrine (2.5 mg) or Etilefrine (1 mg). The continuous infusion of norepinephrine, as decided by the attending anesthetist, may be started at any point of the intraoperative period. The starting dose of norepinephrine is the lowest needed to reach the predefined MAP target.
Other Names:
  • norepinephrine infusion
The maximal dose for the etilefrine allowed is 10 mg (10 boluses of 1 mg), after this threshold a continuous infusion of norepinephrine will be started
PPV, SVV and mini_FC will guide fluid bolus administration during an episode of intraoperative hypotension, following two predefined algorithms for laparotomic/non laparotomic surgery
Other Names:
  • Hemodynamic optimization

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Composite endpoint of postoperative mortality and at least one major organ dysfunction (see description in the secondary outcomes).
Time Frame: up to 30 days after operation
Composite postoperative outcome
up to 30 days after operation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hospital stay (days)
Time Frame: up to 30 days after operation
Hospital stay (days)
up to 30 days after operation
ICU stay (days)
Time Frame: up to 30 days after operation
Intensive Care Unit stay (days)
up to 30 days after operation
ICU readmission
Time Frame: up to 30 days after operation
Intensive Care Unit readmissions
up to 30 days after operation
Sequential Organ Failure Assessment (SOFA) scores on postoperative
Time Frame: up to 7 days after operation
Postoperative organ failure - SOFA scores ranges from 0 (<2% of mortality) to 24 (>90% of mortality)
up to 7 days after operation
Overall intraoperative fluid balance
Time Frame: day 1 after the operation
Intraoperative infusions (crystalloids, colloids, blood products) / Intraoperative loss balance (urine output)
day 1 after the operation
Mortality
Time Frame: up to 30 days after operation
Mortality
up to 30 days after operation
Vasopressors use
Time Frame: day 1 after the operation
Dose and timing of vasoactive drug infusion intraoperatively
day 1 after the operation
Need for reoperation
Time Frame: day 30 after operation
Need of a new surgical treatment
day 30 after operation

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
CARDIOVASCULAR complications
Time Frame: day 7 after operation
  • Acute heart failure
  • Myocardial injury after non-cardiac surgery
  • Myocardial infarction
  • Bradycardia
  • Symptomatic proximal deep venous thrombosis
  • Peripheral arterial and venous thrombosis
day 7 after operation
NEUROLOGICAL complications
Time Frame: day 7 after operation
  • Stroke
  • Subarachnoid hemorrhage
  • Cerebral venous thrombosis
  • Seizure
  • Acute delirium
day 7 after operation
RESPIRATORY
Time Frame: day 7 after operation
  • Acute respiratory distress
  • Hypoxemia with or without acute respiratory distress
  • Need for invasive, non-invasive ventilation or high-flow nasal cannula for acute respiratory distress.
  • Acute respiratory distress syndrome.
  • Pulmonary edema
  • Pulmonary embolism
day 7 after operation
RENAL
Time Frame: day 7 after operation
• Acute Kidney Injury (AKI) and AKI stages defined according to the AKIN classification/staging system of acute kidney injury
day 7 after operation
SEPSIS and Septic shock
Time Frame: day 7 after operation
Based on the Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3) criteria, sepsis required a quick Sequential Organ Failure Assessment (qSOFA) Score ≥ 2 points due to infection, septic shock defined as indicated by the Surviving Sepsis Campaign Guidelines
day 7 after operation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Antonio Messina, Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milano, Italy

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 6, 2023

Primary Completion (Estimated)

March 1, 2024

Study Completion (Estimated)

September 1, 2024

Study Registration Dates

First Submitted

November 24, 2022

First Submitted That Met QC Criteria

November 24, 2022

First Posted (Actual)

December 5, 2022

Study Record Updates

Last Update Posted (Actual)

September 28, 2023

Last Update Submitted That Met QC Criteria

September 26, 2023

Last Verified

September 1, 2023

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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