Related Experiment Video
Updated: Jan 29, 2026

An Anatomical Study of Nerves at Risk During Minimally Invasive Hallux Valgus Surgery
Published on: February 17, 2018
Risk Assessment in Cannulation for Minimally Invasive Heart Valve Surgery: The Modified HOSTILE Score
Jacqueline Kruse1, Miriam Silaschi1, Michael Celik1
1Department of Cardiac Surgery, University Hospital Bonn, 53127 Bonn, Germany.
Insights
The MOD-HOSTILE score helps predict stroke and neurological complications in minimally invasive heart valve surgery. Scores of 5 or higher indicate increased risk, suggesting alternative surgical approaches may be beneficial.
Area of Science:
- Cardiology
- Vascular Surgery
- Medical Imaging
Background:
- Transcatheter valve therapy and minimally invasive valve surgery share vascular access challenges.
- Computed tomography (CT)-based planning is crucial for assessing these vascular issues.
- The HOSTILE score was initially developed for transcatheter procedures.
Purpose of the Study:
- To adapt the HOSTILE score for surgical use (MOD-HOSTILE) in minimally invasive heart valve surgery.
- To evaluate the association of the MOD-HOSTILE score with neurological and adverse outcomes.
- To assess the predictive value of MOD-HOSTILE for stroke risk.
Main Methods:
- A single-center retrospective study of 364 patients undergoing minimally invasive heart valve surgery (2019-2023).
- Calculation of the MOD-HOSTILE score (0-11 points) and patient stratification into low (0-2), mild (>2-5), and high (>5-11) categories.
- Analysis of 30-day stroke, neurological events, perioperative complications, and mortality in relation to MOD-HOSTILE scores.
Main Results:
- High MOD-HOSTILE scores correlated with older age and higher surgical risk (EuroSCORE II).
- Neurological complications, including stroke and hemiplegia, were significantly more frequent in the high MOD-HOSTILE group.
- High MOD-HOSTILE scores, particularly with axillary cannulation, were associated with the highest stroke risk (18.2%).
- The MOD-HOSTILE score predicted stroke with an AUC of 0.78.
Conclusions:
- The MOD-HOSTILE score effectively identifies vascular and neurological risks in minimally invasive valve surgery.
- Scores of 5 or greater are linked to an elevated risk of stroke and delirium.
- Patients with high MOD-HOSTILE scores may benefit from alternative surgical strategies to mitigate risks.
Abstract:
Objectives: The HOSTILE score was developed to assess femoral access challenges in transcatheter valve therapy. Similar vascular issues arise in femoral cannulation for minimally invasive valve surgery, making CT-based planning essential. We adapted the score for surgical use (MOD-HOSTILE) and evaluated its association with neurological and adverse outcomes. Methods: In this single-center retrospective study, the MOD-HOSTILE score (0-11 points) was calculated for 364 patients undergoing minimally invasive heart valve surgery from 2019 to 2023. Patients were stratified into low (0-2), mild (>2-5), and high (>5-11) score categories. Outcomes included 30-day stroke, other neurological events, and perioperative complications. Results: High MOD-HOSTILE patients were significantly older (70 [64.7-73.0] vs. 61 [60.0-63.0] years; p < 0.01) and had higher surgical risk (EuroSCORE II 1.79 [1.26-2.16] vs. 0.83 [0.75-0.94]; p < 0.01). Neurological complications were more frequent in the high MOD-HOSTILE group, including stroke (8.7% vs. 0.9%; p = 0.02) and hemiplegia (13.0% vs. 0.9%; p < 0.01). Axillary cannulated patients had higher MOD-HOSTILE scores than femoral cannulated patients. Stroke risk was highest in patients with high MOD-HOSTILE score undergoing axillary cannulation (high vs. low MOD-HOSTILE, 18.2% vs. 0%; p = 0.04). Thirty-day mortality was comparable between groups (p = 0.09). MOD-HOSTILE predicted stroke with an AUC of 0.78 (95% CI 0.73-0.82) and OR 1.4 per point (95% CI 1.1-2.0). Conclusions: The MOD-HOSTILE score identifies vascular and neurological risk in minimally invasive valve surgery, with scores ≥5 indicating elevated risk of stroke and delirium. Patients with high scores may benefit from alternative surgical strategies.
More Related Videos
Related Concept Videos
Heart Valves
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
Mitral Valve Prolapse II: Assessment and Management
Anatomy of the Heart
Introduction to z Scores
z scores...
Introduction to z Scores
z scores...
z Scores and Area Under the Curve

