ICH Score — Intracerebral Haemorrhage
Glasgow Coma Scale (GCS)
Volumen ICH (metoda ABC/2)
Intraventricular Haemorrhage (IVH)
Infratentorial Origin
Starost ≥ 80 let
Detailed Guide Coming Soon
We're working on a comprehensive educational guide for the ICH Score in your language. The content below is shown in English.
What is ICH Score?
▾
The Intracerebral Hemorrhage (ICH) Score is a critical clinical-operational metric used to risk-stratify patients presenting with spontaneous intracranial bleeding. Originally developed in 2001 at the University of California San Francisco, this validated scoring system serves as a cornerstone for predicting 30-day mortality. For healthcare executives, clinical operations managers, and medical directors, the score is not merely a prognostic tool; it is an essential instrument for ICU bed allocation, staffing optimization, and clinical pathway standardization. By categorizing patients based on neurological status, hematoma volume, anatomical location, and demographic risk, healthcare systems can deploy specialized neurocritical care resources where they will yield the highest clinical and financial return. From a financial and risk-management perspective, the ICH Score is invaluable for value-based care organizations, commercial insurers, and hospital CFOs. Spontaneous ICH cases represent some of the most resource-intensive admissions in the healthcare sector, often resulting in prolonged ICU stays, mechanical ventilation, and complex surgical interventions. Utilizing this structured risk-grading system allows actuarial analysts and case managers to project length of stay (LOS), anticipate post-acute care needs, and establish accurate financial reserves. It also prevents the misallocation of high-cost interventions in cases where palliative or comfort-focused pathways are clinically indicated and aligned with patient goals. Furthermore, the ICH Score plays a pivotal role in clinical trial design and pharmaceutical research and development. Biotech companies and clinical research organizations (CROs) utilize the score to stratify patient cohorts, ensuring that treatment and control arms are balanced for baseline stroke severity. This rigorous stratification controls for confounding variables, reduces the statistical noise that can derail expensive Phase III trials, and ultimately accelerates the time-to-market for novel neuroprotective therapies and surgical devices.
Calkulon makes complex calculations simple — built for students and everyday problem-solvers.
Formula
▾
ICH Score = GCS[3-4=2pts, 5-12=1pt, 13-15=0pts] + ICH Volume[≥30mL=1pt, <30mL=0pts] + IVH Present[yes=1pt, no=0pts] + Infratentorial Origin[yes=1pt, no=0pts] + Age≥80[yes=1pt, no=0pts]; Total Range: 0-6; 30-day mortality risk: 0=0%, 1=13%, 2=26%, 3=72%, 4=97%, 5-6≈100%Variable Legend
▾
| Symbol | Ime | Enota | Opis |
|---|---|---|---|
| GCS | Glasgow Coma Scale | 3-15 | The primary neurological assessment metric indicating the patient's level of consciousness, weighted heavily in the final risk score. |
| V | ICH Volume | mL | The estimated volume of the parenchymal bleed, with a critical threshold set at 30 mL to differentiate moderate from high-risk cases. |
| IVH | Intraventricular Hemorrhage | present/absent | A binary indicator of whether blood has extended into the brain's ventricular system, complicating management and increasing mortality risk. |
| IF | Infratentorial Origin | yes/no | An anatomical locator indicating if the hemorrhage originated in the posterior fossa, which poses an immediate threat to vital brainstem functions. |
| A | Age | years | The chronological age of the patient, where advanced age (80 years or older) acts as an independent physiological stressor and risk multiplier. |
How to ICH Score
▾
- 1Assess the Glasgow Coma Scale (GCS) score upon patient admission: assign 2 points for severe impairment (GCS 3-4), 1 point for moderate impairment (GCS 5-12), and 0 points for mild or absent impairment (GCS 13-15).
- 2Calculate the volume of the parenchymal hemorrhage using the ABC/2 method on a non-contrast CT scan; assign 1 point if the volume is 30 mL or greater, and 0 points if it is under 30 mL.
- 3Determine the presence of intraventricular hemorrhage (IVH) via neuroimaging, assigning 1 point if blood has entered the ventricular system and 0 points if it has not.
- 4Identify the anatomical origin of the bleed: assign 1 point for an infratentorial origin (brainstem or cerebellum) and 0 points for a supratentorial location.
- 5Verify the patient's age from their medical record, assigning 1 point if the patient is 80 years of age or older, and 0 points if they are under 80.
- 6Aggregate the points from all five categories to generate a final ICH Score ranging from 0 to 6.
- 7Cross-reference the final score with validated 30-day mortality risk percentages to guide clinical resource allocation, financial forecasting, and family counseling.
Worked Examples
▾
Highly favorable prognosis; standard stroke unit care with low ICU resource intensity is appropriate.
The patient is under 80 years of age with a small, supratentorial bleed (15 mL), near-normal consciousness (GCS 14), and no ventricular extension. This scenario represents an excellent candidate for rapid stabilization and early transition to a step-down unit, maximizing DRG margin efficiency.
High resource utilization; intensive care monitoring and early multidisciplinary planning required.
This patient presents with multiple compounding risk factors: a moderate GCS score of 9 (1 point), a hematoma volume exceeding the 30 mL threshold (1 point), and intraventricular extension (1 point). The resulting score of 3 indicates a high-risk profile that will likely require invasive monitoring, such as an external ventricular drain, and a longer ICU length of stay.
Extreme risk; prioritize immediate palliative care consultation to optimize resource utilization.
This patient meets every high-risk criterion: advanced age (1 point), severe coma (2 points), large volume (1 point), ventricular involvement (1 point), and posterior fossa location (1 point). With a maximum score of 6, clinical pathways should focus on comfort-directed care, avoiding futile, high-cost surgical interventions while supporting the family through end-of-life decisions.
Guarded prognosis; immediate neurosurgical evaluation is indicated for posterior fossa decompression.
While the hematoma volume is small (8 mL), its infratentorial location (1 point) and the patient's moderate neurological depression (1 point) yield a score of 2. Posterior fossa bleeds carry a high risk of rapid brainstem compression; timely surgical evacuation can dramatically improve functional outcomes, representing a high-value surgical intervention.
Real-World Applications
▾
Hospital CFOs and case managers use the ICH Score to project ICU length of stay and anticipate post-acute care transitions, allowing for precise financial forecasting and resource allocation.
Clinical research organizations (CROs) incorporate the score into clinical trial protocols to stratify patient cohorts, ensuring balanced treatment groups and robust statistical outcomes.
Healthcare quality assurance teams utilize the score to risk-adjust mortality data, ensuring that hospitals caring for highly complex patient populations are not unfairly penalized in national rankings.
Palliative care consultants use the score as a validated framework to guide difficult end-of-life conversations with families, matching the intensity of care with realistic clinical expectations.
Special Cases
▾
Anticoagulant-Induced Hematoma Expansion
Patients presenting with ICH who are actively therapeutic on warfarin or direct oral anticoagulants (DOACs) are at an extremely high risk for rapid hematoma expansion within the first 24 hours. In these scenarios, an initial low-risk ICH Score can be highly deceptive. Clinical teams and case managers must anticipate rapid clinical deterioration and prioritize immediate pharmacological reversal protocols, as the admission score may significantly underestimate the patient's true risk profile.
Confounded GCS Due to Early Intubation
When a patient is intubated and sedated by emergency medical services prior to arrival at the hospital, an accurate baseline GCS cannot be easily obtained. Using a sedated GCS score artificially inflates the ICH Score, leading to an overestimation of mortality risk. In these cases, clinicians should attempt to obtain the pre-intubation GCS from first responders or use the best estimate of neurological status prior to drug administration to avoid skewed data.
Highly Irregular or Multi-Focal Hemorrhages
For lobar or multi-focal hemorrhages with highly irregular geometries, the standard ABC/2 formula can over- or underestimate the true volume of blood by more than 30%. Because the volume threshold of 30 mL is a critical inflection point in the scoring system, geometric inaccuracies can lead to incorrect risk stratification. In complex cases, advanced volumetric software should be utilized to ensure accurate scoring and appropriate resource allocation.
ICH Score and 30-Day Mortality
▾
| ICH Score | 30-Day Mortality | Clinical Context |
|---|---|---|
| 0 | 0% | Excellent prognosis; full active management |
| 1 | 13% | Favourable; intensive management appropriate |
| 2 | 26% | Guarded; goals-of-care discussion advisable |
| 3 | 72% | Poor prognosis; early family conference essential |
| 4 | 97% | Very high mortality; comfort measures discussion |
| 5-6 | ~100% | Near-certain death; palliative approach appropriate |
Frequently Asked Questions
▾
Can the ICH Score be used to justify withholding medical treatment?
No, the ICH Score should not be used as the sole determinant for restricting care or writing do-not-resuscitate (DNR) orders. Clinical research indicates that early withdrawal of active treatment based purely on admission scores can create a self-fulfilling prophecy of high mortality. The tool is designed to assist with prognostic counseling and resource planning, not to serve as an absolute clinical barrier to treatment.
How is the volume of the hemorrhage calculated for this score?
The hematoma volume is calculated using the rapid ABC/2 geometric formula on non-contrast CT scans. In this formula, 'A' represents the maximum diameter of the hemorrhage on the slice with the largest area, 'B' is the diameter perpendicular to 'A' on the same slice, and 'C' is the approximate number of slices showing the hemorrhage multiplied by the slice thickness. Multiplying these three values and dividing by two provides a reliable estimate of the ellipsoid volume in milliliters.
What is the clinical and financial significance of intraventricular hemorrhage?
The presence of blood within the brain's ventricles (IVH) indicates a more complex clinical course, often leading to acute obstructive hydrocephalus. From an operational perspective, patients with IVH frequently require the placement of an external ventricular drain (EVD) to manage intracranial pressure. This requirement increases ICU length of stay, consumable medical equipment costs, and the level of nursing care required, directly impacting the hospital's operational margins.
Are the components of the ICH Score weighted equally?
No, the components are weighted based on their statistical strength as independent predictors of 30-day mortality. The Glasgow Coma Scale (GCS) is the most heavily weighted component, contributing up to 2 points for severe impairment (GCS 3-4). The remaining four variables—hematoma volume, intraventricular extension, infratentorial origin, and age—each contribute a maximum of 1 point to the total score of 0 to 6.
How reliable is the ICH Score in predicting patient survival?
The ICH Score is highly reliable and has been validated across numerous international cohorts, consistently demonstrating strong predictive power for 30-day mortality. A score of 0 correlates with a near-zero mortality rate, whereas scores of 5 and 6 are associated with virtually 100% mortality. However, clinicians and insurers must remember that the score predicts short-term mortality rather than long-term functional recovery or quality of life.
Common Mistakes to Avoid
▾
- !Prematurely limiting active therapeutic interventions or writing DNR orders based solely on a high admission ICH Score, which artificially drives up mortality rates through a self-fulfilling prophecy.
- !Applying the ABC/2 volume calculation incorrectly by using the hematoma's radius instead of its diameter, resulting in a severe underestimation of the bleed volume.
- !Utilizing the ICH Score for patients with traumatic brain injuries (TBI) or hemorrhagic transformations of ischemic strokes, populations for whom this specific clinical prediction rule has not been validated.
Pro Tip
To maximize the accuracy of your hospital's risk-adjusted quality metrics, ensure that the GCS used in the ICH Score is documented prior to the administration of paralytics or sedatives. Accurate documentation prevents artificial score inflation, protecting your facility's reported mortality ratios from being skewed by transient, drug-induced neurological depression.
Did you know?
In the insurance underwriting and reinsurance markets, the ICH Score is utilized to evaluate the high-cost risk exposure of catastrophic medical claims. By analyzing the distribution of ICH Scores within a health system's patient population, reinsurers can more accurately price stop-loss policies, demonstrating how a clinical bedside tool directly influences global financial structures.
References
- ›Hemphill JC et al. The ICH Score: a simple, reliable grading scale for intracerebral hemorrhage. Stroke 2001.
- ›Broderick JP et al. AHA/ASA Guidelines for the Management of Spontaneous ICH. Stroke 2007.
- ›Morgenstern LB et al. 2010 AHA/ASA Guidelines for ICH. Stroke 2010.
- ›Zahuranec DB et al. Early care limitations independently predict mortality after ICH. Neurology 2007.
Read the full guide on how to use this calculator effectively
Preberi več →Pridobite tedenske nasvete za matematiko
Pridružite se 12.000+ naročnikom, ki vsak teden prejmejo nasvete za kalkulator.