Library.

“Profuse sweating with no apparent cause followed by a spasm-like sensation at the lower end of the esophagus is a warning sign of an impending myocardial infarction (heart attack).”

The evidence does not support this symptom pair as a recognized warning sign of an impending heart attack. Unexplained sweating can occur with myocardial infarction and should not be ignored, but a spasm-like sensation low in the esophagus is more commonly treated as an esophageal mimic or alternative diagnosis, not a cardiac prodrome. The claimed sequence is therefore materially misleading.

“A prospective Fudan University study of 724 patients with recent myocardial infarction found that soluble interleukin-2 receptor (sIL-2R) was an independent predictor of long-term major adverse cardiac events, reporting an unadjusted hazard ratio of 9.123 (95% CI 5.883–14.147) and an adjusted hazard ratio of 3.761 (95% CI 2.269–6.233) with p < 0.001.”

The cited study details are supported by the published record. Multiple authoritative versions of the same Fudan/Zhongshan cohort paper report 724 patients, a prospective design, and the exact unadjusted and adjusted hazard ratios with p<0.001. The main caveat is a likely misindexed older database entry, plus the study’s single-center design and cutoff-based analysis.

“A cohort study of 382 adults younger than 60 years old, assessed 3 months after a first myocardial infarction and followed for 20 years, found that participants in the highest tertile of interleukin-6 had a 2.70-fold higher risk of heart-failure hospitalization than those in the lowest tertile (hazard ratio 2.70; 95% CI 1.32–5.50).”

The described study appears real, and the available evidence supports that higher IL-6 levels measured three months after a first myocardial infarction were linked to higher later risk of heart-failure hospitalization in 382 adults under 60. However, the exact figure cited—hazard ratio 2.70 with 95% CI 1.32–5.50—and the stated 20-year follow-up are not directly verified in the provided evidence. The core association is supported; the precise numerical claim is not fully substantiated here.