Decommission of a Heartmate 3 LVAD in a patient with left ventricular recovery
Bibliographic record
Abstract
Background: Left ventricular assist devices have been a significant development in the treatment of patients with advanced heart failure supporting circulation as a bridge to transplant, recovery or long-term destination therapy. When ventricular recovery occurs, there are multiple described ways of proceeding. HM2 decommissions are well described with varying degrees of explant operations, less so in HM3 due to the novelty of the device. In certain situations, invasive surgery can carry high risk and so a minimally invasive decommission, leaving the LVAD essentially intact in situ can be considered. Case report In this report, we describe the case of a 35-year-old male diagnosed with an idiopathic dilated cardiomyopathy requiring an LVAD with subsequent identification of cardiac recovery with the asymptomatic thrombosis of the 2 nd HM3 device. Investigations demonstrated absent flow through the pump whilst the patient-reported NYHA I functional class symptoms. The Driveline was cut with the remaining internal pump components decommissioned and left in situ. At 1 year the patient continues to do well with continued features of cardiac recovery with an LVEF of over 40%. Conclusion LV recovery is well recognized with typical management being LVAD explant surgeries performed. Each case should be analyzed for risks and benefits to the patient and future research showed be directed towards levels of decommissioning surgery and management post-LVAD decommission patient care.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.004 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".