Bibliographic record
Abstract
Background: The typical patient with Gallstone ileus is female, elderly, with concomitant medical diseases and high operative risk. This disease is becoming more common as a result of increase the aging population. Its diagnosis is difficult and early diagnosis could reduce the mortality. Nowadays the use of new imaging techniques can expedite the correct diagnosis, decreasing preoperative delay. However, controversy persists primarily in relation to surgical strategy. Methods: We retrospectively reviewed the medical records of all patients with the diagnosis of intestinal obstruction between 1998 and 2011. We took into consideration concomitant medical conditions, previous history of cholelithiasis, operative risk (ASA score), preoperative findings, duration and type of surgery, post-operative outcome, 30-day mortality. Results: The incidence was 0.66% (4 out of 601 cases of intestinal obstruction), 1% if we consider small bowel obstruction only (399 cases), 2.01% in patients over the age of 65 (199 out of 601) and 3.73 % in patients over the age of 80 (107 out of 601). In cases of small bowel obstruction resulting in impacted foreign body the incidence was 36.36 %. All patients were female with a mean age of 81.7 (range 75 - 86). The proper diagnosis prior to surgery was assessed in 2 out of 4 cases. In one case enterolithotomy was completed in one stage with cholecystectomy and closure of the fistula during acute surgery, while in 3 cases enterolithotomy alone was performed, 1 patient operated enterolithotomy alone died on the 14th postoperative. Conclusions: The history, clinical, and radiologic findings are often nonspecific suggesting only a small bowel obstruction. Nowadays the use of new imaging techniques, in combination with plain abdominal radiographs, can expedite the correct diagnosis in over 50% of cases decreasing preoperative delay. The type of intervention does not significantly influence post-operative morbidity and mortality rates. We believe to perform simple enterolithotomy as procedure of choice, while the one-stage procedure should be performed in patients with greater life expectancy, less operative risk and comorbidity. doi:10.4021/jcs87w
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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 | 0.008 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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".