Comparison of Post-Craniotomy Blood Pressure Targets

N/ANot Yet RecruitingNCT07093151

Vanderbilt University Medical Center500 enrolled

Overview

The goal of this pragmatic clinical trial is to learn if a more intensive or more liberal blood pressure target after surgery is more effective in improving patient outcomes for adults undergoing craniotomy for removal of a brain tumor. There is little evidence to help doctors decide the best post-operative blood pressure target for their patients. The main question this study aims to answer is if patients with a post-operative systolic blood pressure target of \<160 mmHg will have a shorter hospital length of stay than those with a blood pressure target of \<140 mmHg, without increasing the rate of post-operative bleeding in the brain.

Over 160,000 craniotomies, a type of brain surgery, are performed annually in the United States. High blood pressure is believed to increase the risk of post-operative bleeding in the brain, known as intracranial hemorrhage (ICH). This perceived risk has led many doctors to impose post-operative systolic blood pressure (SBP) limits, with aggressive treatment when SBP rises above the target thresholds. The use of intensive SBP goals often requires antihypertensive medication treatment, occasionally including intravenous (IV) drips. These medical therapies could have several adverse effects related to end-organ function. Additionally, close SBP monitoring with an arterial line and/or treatment with IV antihypertensives often requires intensive care unit (ICU) level of care. 40% of academic medical programs use a goal of SBP\<160mmHg as supported by this limited evidence, while 45% of programs use an even more stringent SBP goal of \<140mmHg. This study is a single-center, pragmatic, randomized trial comparing the effectiveness of these two standard-of-care post-craniotomy SBP goals in reducing patient hospital length of stay, risk of ICH, and adverse side effects of antihypertensive use. Eligible patients will be randomized to receive an order for a target SBP \<140 mmHg or SBP \<160 mmHg during this period. We hypothesize that a target SBP \<160 mmHg will decrease patient hospital length of stay without increasing the risk of ICH.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Interventions

Target SBP <160mmHgOTHER

For subjects assigned to the SBP \<160 mmHg group, an SBP target order will be placed to guide the neuro-intensive care team to treat the patient with antihypertensive medications as needed to achieve an SBP \<160 mmHg. Selection of the antihypertensive medication and administration route is at the discretion of the treating team. Patients will undergo regular and frequent blood pressure measurements using the arterial line placed during surgery, or through a non-invasive blood pressure measurement method if no arterial line is present.

Target SBP <140 mmHgOTHER

For subjects assigned to the SBP \<140 mmHg group, an SBP target order will be placed to guide the neuro-intensive care team to treat the patient with antihypertensive medications as needed to achieve an SBP \<140 mmHg. Selection of the antihypertensive medication and administration route is at the discretion of the treating team. Patients will undergo regular and frequent blood pressure measurements using the arterial line placed during surgery, or through a non-invasive blood pressure measurement method if no arterial line is present.

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Age ≥ 18 years old * Undergoes craniotomy for resection of an intradural brain tumor scheduled using any of the following Current Procedural Terminology (CPT) codes: 61304, 61305, 61330, 61333, 61510, 61512, 61516, 61518, 61519, 61520, 61521, 61524, 61526, 61530, 61545, 61580, 61581, 61582, 61583, 61584, 61585, 61586, 61590, 61591, 61592, 61595, 61596, 61597, 61598, 61600, 61601, 61605, 61606, 61607, 61608, 61615, 61616 Exclusion Criteria: * Declines to consent * Attending decisions based on intraoperative findings (i.e. attending physician does not have equipoise that either blood pressure threshold would be acceptable for the post-operative care of the patient). * Patient is a prisoner * Patient is known to be pregnant

Outcomes

Primary Outcomes

Hospital length of stay

Length of patient hospital stay in days

Time frame: From enrollment to first hospital discharge or 90 days, whichever is sooner

Secondary Outcomes

ICU length of stay

Length of patient stay in the Neuro Intensive Care Unit after craniotomy

Time frame: From enrollment to transfer out of the ICU or 90 days, whichever is sooner.

Intracranial hemorrhage (ICH) incidence

Rate of intracranial hemorrhage requiring return to the operating room

Time frame: From enrollment to hospital discharge

Patient-Reported Outcome Measurement Information System-10 (PROMIS10) score

PROMIS10 responses collected at routine postoperative neurosurgery clinic follow-up visits. The PROMIS Global 10 uses T-scores to interpret results. T-scores are standardized scores with a mean of 50 and a standard deviation of 10.

Time frame: From enrollment to 90 days following enrollment

Functional Assessment of Cancer Therapy - Brain (FACT-Br) score

FACT-Br responses collected at routine postoperative neurosurgery clinic follow-up visits. This scale is measured on a 5 point Likert-type scale, with higher scores indicating better quality of life.

Time frame: From enrollment to 90 days following enrollment.

Composite of adverse end-organ hypoperfusion events related to antihypertensive use

Composite measure of inpatient mortality, acute kidney injury, BNP elevation, and myocardial infarction during hospital stay.

Time frame: From enrollment to hospital discharge or 90 days, whichever is sooner.