Vascular Complications With Intra-aortic Balloon Pump (IABP): Experience From a Large Canadian Metropolitan Centre
Bibliographic record
Abstract
Background: Intra-aortic balloon pump (IABP) insertion in critically ill patients has been associated with both vascular and nonvascular complications, which have restricted its use. The primary objective for this study was to determine the frequency and predictors of vascular complication in our centre. Methods: We conducted a retrospective cohort study of consecutive patients treated with an IABP between January 2014 and June 2018. Baseline clinical characteristics, cannulation details, duration of treatment and management, overall mortality, and complications were extracted from electronic and paper medical records. Results: . A majority of the patients had an IABP inserted in either the cardiac catheterization laboratory (54.5%) or an outside hospital (26.7%). The main indications for insertion were acute decompensated heart failure-cardiogenic shock (58.3%), followed by acute myocardial infarction and cardiogenic shock (26.2%). From the documented cannulation site, the right femoral artery was cannulated in 61.6% of patients, with a median size of 7.5 Fr (range: 5 -12 Fr). Mortality for in-hospital, 30-day, and 1-year mortality was calculated at 37.4%, 40.6%, and 41.7%, respectively. Limb ischemia (3.2%), bleeding (1.6%), mesenteric ischemia (0.5%), compartment syndrome (0.5%), and fasciotomy (0.5%), were rare occurrences. No records indicated amputation, aortoiliac dissection, thrombectomy, or infection at the site of insertion. Conclusions: This single-centre retrospective study demonstrated that more than one third of this patient population died secondary to their primary diagnosis. The incidence of vascular complications secondary to IABP insertion remained low, with less than 3% developing an ischemic limb.
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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 | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
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".