Massive pulmonary thromboembolism combined with transient thyrotoxicosis in an 18 year old girl

Hyperthyroidism and cardiovascular disease: an association study using big data analytics

BACKGROUND

The cardiovascular (CV) system is profoundly affected by thyroid hormones. Both hypo- and hyperthyroidism can increase the risk of severe CV complications.

OBJECTIVE

To assess the association of hyperthyroidism with major CV risk factors (CVRFs) and CV diseases (CVDs) using a big data methodology with the Savana Manager platform.

MATERIAL AND METHODS

This was an observational and retrospective study. The data were obtained from the electronic medical records of the University Hospital Puerta de Hierro Majadahonda (Spain). Artificial intelligence techniques were used to extract the information from the electronic health records and Savana Manager 3.0 software was used for analysis.

RESULTS

Of a total of 540,939 patients studied (53.62% females; mean age 42.2 ± 8.7 years), 5504 patients (1.02%; 69.9% women) had a diagnosis of hyperthyroidism. Patients with this diagnosis had a significantly (p < 0.0001) higher frequency of CVRFs than that found in non-hyperthyroid subjects. The higher frequency of CVRFs in patients with hyperthyroidism was observed in both women and men and in patients younger and older than 65 years of age. The total frequency of CVDs was also significantly (p < 0.0001) higher in patients diagnosed with hyperthyroidism than that found in patients without this diagnosis. The highest odds ratio values obtained were 6.40 (4.27-9.61) for embolic stroke followed by 5.99 (5.62-6.38) for atrial fibrillation. The frequency of all CVDs evaluated in patients with a diagnosis of hyperthyroidism was significantly higher in both women and men, as well as in those younger and older than 65 years, compared to subjects without this diagnosis. A multivariate regression analysis showed that hyperthyroidism was significantly and independently associated with all the CVDs evaluated except for embolic stroke.

CONCLUSION

The data from this hospital cohort suggest that there is a significant association between the diagnosis of hyperthyroidism and the main CVRFs and CVDs in our population, regardless of the age and gender of the patients. Our study, in addition to confirming this association, provides useful information for understanding the applicability of artificial intelligence techniques to "real-world data and information".

Venous Thromboembolism and Thymic Hyperplasia in the Setting of Silent Graves' Disease

Venous thromboembolism is a common, yet serious life-threatening condition that has many well-recognized associations which include but are not limited to pregnancy, polycythemia, trauma, immobility, and malignancy. The pathophysiology behind the pro-coagulant effects of hyperthyroidism has been well established; however, there are no current guidelines regarding deep venous thrombosis (DVT) surveillance in patients with hyperthyroidism. In this report, we discuss the case of a 36-year-old female with no significant past medical history (PMH) with the exception of a 15 pack-year smoking history, who presented to us with an extensive, rapidly-progressing lower extremity DVT. Despite aggressive treatment measures, she developed a pulmonary embolus in the hospital. During her stay, she was diagnosed with Graves’ disease by hormone profile and thyroid-stimulating hormone receptor (TSH-R) antibody positivity. Additionally, an incidental thymic mass, likely thymic hyperplasia, was found on imaging and presumed to be associated with Graves’ disease. This case study reports a difficult-to-treat venous thromboembolism in the setting of Graves’ disease along with a review of current literature and pathophysiology on the subject.