US troops were deployed to the Persian Gulf in what became known as the Gulf War. Upon their return, many Gulf War veterans from both the US and other allied forces began to report chronic, unexplained fatigue, pain, Author Affiliations are listed at the end of this article. Members of the VA Cooperative Study #470 Study Group and the data and safety monitoring board are listed in reference 14 of this article.

This is the first time a prevalence study for SDB is done among a representative sample of subjects of Puerto Rican origin. It is the first step in documenting how SDB affects this ethnic group.

A 71-year-old male with coronary artery disease, hypertension, diabetes mellitus, tobacco and opioid dependence came to the emergency room complaining of one episode of retrosternal chest pain oppressive in nature of one day of evolution. He had acute respiratory distress and required mechanical ventilation. The initial impression was myocardial ischemia, but electrocardiography and cardiac enzymes ruled it out. During the following hours, neck and tongue edema developed. He was started on broad-spectrum antibiotics empirically. Neck computed tomography scan revealed a left parapharyngeal and submandibular abscess. The abscess was drained. The source of infection was found on the second molar of the left lower jaw. The patient improved and was successfully weaned from mechanical ventilation. Despite advances in therapy, Ludwig's angina remains a potentially lethal infection in which early recognition plays a crucial role.

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