Community experience of colonic stenting in patients with acute large bowel obstructions
Bibliographic record
Abstract
BACKGROUND: Self-expandable metal stents (SEMS) can provide temporary relief of acute large bowel obstructions. Placement of SEMS creates the opportunity for semi-elective 1-stage surgical resections, use of possible adjuvant therapy or palliative relief of malignant obstructions. Our aim was to assess the likelihood of success and possible complication rates of SEMS insertion in a community hospital setting in patients presenting with large bowel obstructions. METHODS: We conducted a retrospective chart review at a single community-based hospital. This review addressed the technical success in deployment of the SEMS, clinical success defined by relief of the obstruction, procedure-related complications, surgical interventions and completion of adjuvant therapy for patients with large bowel obstructions. RESULTS: In a 34-month period, 16 patients underwent 16 SEMS procedures. The average age of patients was 69.4 years and 7 (44%) were women. Thirteen patients had intrinsic colorectal cancers, 1 had an extracolonic lesion (ovarian cancer) and 2 had strictures due to diverticular disease. Technical success occurred in all 16 patients, but only 15 (94%) had clinical success. No procedure-related deaths (defined as death within 7 days) occurred. Palliative stenting occurred in 5 patients (31%). Eleven patients (69%) eventually had surgery. Stenting allowed a window for neoadjuvant therapy in 4 patients. Ten of 11 patients (91%) had a 1-stage procedure. One patient had a cecal perforation presenting 2 days after SEMS. This patient received a defunctioning ileostomy. CONCLUSION: In appropriate patients with large bowel obstructions, SEMS proced ures can be safely and effectively performed in a community-based setting.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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".