Laparoscopic nephroureterectomy in a patient with a left ventricular assist device
Bibliographic record
Abstract
Left ventricular assist device (LVAD) therapy is an established treatment option for select patients with advanced heart failure. Advances in technology and patient management have resulted in improved post-implant outcomes. Consequently, more patients with LVADs are presenting for evaluation and care of non-cardiac surgical disease. However, there is a paucity of literature regarding the optimal perioperative and surgical management of such patients. We present the case of a 71-year-old male with a HeartMate II (Thoratec Corporation, Pleasanton, CA) LVAD, who underwent a laparoscopic left nephroureterectomy for an upper urinary tract transitional cell carcinoma. His perioperative course was uneventful due to the multidisciplinary efforts of cardiac surgery, cardiac anesthesia, nephrology and urology. To our knowledge, this is the first reported case of a laparoscopic nephroureterectomy in a patient with a HeartMate II LVAD.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.003 |
| 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".