Short and mid-term follow-up of patients with low ejection fraction who underwent coronary artery bypass surgery: comparison of preoperative and postoperative anginal complaint and functional capacity
Bibliographic record
Abstract
Revascularisation of patients with low ejection fraction has beneficial effects. It prevents progressive left ventricular dilatation, sudden cardiac death, reduction of functional capacity. Thirty-seven consecutive patients with low EF (≤30%) who underwent CABG in our department between February 2010 and April 2012 were analyzed retrospectively (8 women and 29 men, mean age 62,32±10,86 years, range 40 to 78 years). Short and mid term results of CABG on functional capacity and angina were evaluated. Functional capacity and angina were ranked according to the New York Heart Association (NYHA) and Canadian Cardiovascular Society (CCS) classification systems consecutively. Eight patients underwent of-pump. In-hospital mortality was 5.4%. One patient died seven months after hospital discharge and mortality was due to heart failure. Annual mortality was 8.1%. The patients did have significantly decreased angina and increased functional capacity after the operation. Sixteen patients were in CCS class I/II and 19 patients were in CCS III/IV preoperatively while all patients were in CCS class I/II postoperatively. Eighteen patients were in NYHA class I/II and 17 patients were in NYHA class III/IV preoperatively while all patients were in NYHA class I/II postoperatively. Postoperative mean values of CCS angina and NYHA functional capacity classifications were significantly lower than preoperative scores (p<0,05). Postoperative mean value of CCS angina class improvement found as 1,35±0,37 and mean value of NHYA functional capacity improvement was 1,33±0,25 when compared to preoperative status. Six and 12-month outpatient CCS angina class and NHYA functional capacity did not show any significant difference. Short and mid term follow-up of patients with low EF who underwent CABG, revealed that CCS angina and NYHA functional capacity were improved significantly when compared to their preoperative status.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".