A Retrospective Analysis of Catheter-Related Upper Extremity Deep Vein Thrombosis in Peripherally Inserted Catheters With and Without a Dermatotomy
Bibliographic record
Abstract
Abstract Background: Successful placement of peripherally inserted central catheters (PICCs) has increased with the use of a modified Seldinger technique (MST). However, differences exist between MST kits related to the transition between the introducer and dilator. When blunt, a skin nick (dermatotomy) is necessary to allow the dilator/sheath combination to pass through the skin. However, this does not reduce the trauma on the vein. Upper extremity deep vein thrombosis (UEDVT) is a PICC-related complication. It is unclear what effect the MST kit has on this complication. Our previous study found a rate of 0.76% UEDVT ≤ 2 weeks postinsertion using a MST kit without dermatotomy. Methods: We performed a retrospective analysis on a cohort of patients at The Ottawa Hospital undergoing a PICC insertion using a MST kit requiring a dermatotomy between November 1, 2016, and January 1, 2017. We obtained a complete dataset for 701 patients and determined the incidence of UEDVT ≤ 2 weeks postinsertion. Results: Of 701 patients included in the study, 8 patients developed symptomatic UEDVT ≤ 2 weeks postinsertion, for a rate of 1.14%. The odds ratio comparing the group that received a dermatotomy to the previous group who did not was 1.50% (95% confidence interval 0.40-4.62). Conclusions: The odds ratio of UEDVT ≤ 2 weeks post-PICC insertion with a dermatotomy compared with those without was not significantly different. We conclude that a MST kit requiring a dermatotomy does not increase the risk of early UEDVT.
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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 | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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".