LECOM (Lead Extraction COMplexity) Score Calculator

LECOM (Lead Extraction COMplexity) Score: Explanation and Clinical Context
The LECOM score is a predictive tool developed to assess the complexity of transvenous lead extraction (TLE) procedures. It incorporates clinical and procedural factors to estimate the likelihood of a difficult extraction. The score is calculated based on the following parameters:
- Age at First CIED Implantation: Patients implanted before 51 years are assigned 2 points.
- Number of Abandoned Leads: Presence of abandoned leads adds 2 points.
- Number of Previous Procedures: More than one prior procedure contributes 2 points.
- Passive Fixation Leads: Use of passive fixation leads adds 2 points.
- Number of Leads to be Extracted: Extracting multiple leads contributes 2 points.
- Dwell Time Ratio: A ratio greater than 0.13 adds 2 points.

The total points are summed, and the probability of a complex extraction is calculated using the formula:
```
Probability (%) = [1 / (1 + 55.34 * 0.754^X)] * 100
```
where X is the total points. A higher score indicates a greater likelihood of procedural complexity.

Reference:
Jacheć W, et al. LECOM (Lead Extraction COMplexity): A New Scoring System for Predicting a Difficult Procedure. J Clin Med. 2023 Dec;12(12):3942. doi: 10.3390/jcm12123942.

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