Transient Non-Suppressible Cough at Altitude Occurring With Cessation of Exercise
Bibliographic record
Abstract
The aim of this report is to describe two subjects with an uncontrollable dry cough that occurred at altitude immediately after cessation of intense exercise; the cough occurred at 5 - 15 second intervals and resolved in 20-30 min with rest or a reduced level of exercise. The presence of cough did not foreshadow an increased risk of acute mountain sickness (AMS) or high altitude pulmonary edema (HAPE) and, in a third subject, was observed to occur at sea level. Its etiology is uncertain but it is probably not related to the cold dry air at altitude, bronchoconstriction, respiratory tract infection, AMS, vasomotor rhinitis or water loss from the respiratory tract. A plausible hypothesis is a transient overload of normal physiologic processes resulting from an imbalance between the increased production of transpulmonary filtrate due to elevated pulmonary artery pressures from intense exercise and hypoxia combined with a sudden reduction in the rate of lymph clearance due to the decrease in hyperpnea following the abrupt cessation of intense exercise. Clinical pulmonary edema results from a breakdown of normal homeostatic processes for removal of interstitial fluid; for individuals in this report, normal homeostatic processes were still operative. Regardless of the mechanism, this syndrome appears to be benign and when it occurs at altitude, it does not imply an increased risk of AMS or HAPE, does not require treatment and does not necessitate a restriction in activity or a prohibition against higher ascent. J Med Cases. 2013;4(5):323-326 doi: https://doi.org/10.4021/jmc1250e
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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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".