Chronotherapy in head and neck cancer: A systematic review and meta-analysis.

Optimizing the timing of radiotherapy and chemotherapy tailored to the body's biological clock (i.e., chronotherapy) might improve treatment efficacy and reduce side effects.

Severe Mitral Valve Regurgitation Secondary to Fulminant Myocarditis in the Setting of a Lupus Flare.

Systemic Lupus Erythematosus represents a chronic autoimmune disorder characterized by multiorgan involvement. Lupus myocarditis is a rare presentation of one of the cardiac complications of lupus with an incidence of 3-9%. It usually presents with non-specific symptoms such as dyspnea, orthopnea, chest pain, pedal edema, fever, diaphoresis, paroxysmal nocturnal dyspnea, nausea, vomiting, or palpitations.

Troponemia Secondary to Air Duster Inhalant Abuse.

Unlabelled: The abuse of inhalants has become a public health concern in the USA over the past decade. Compressed air duster cans currently available in the USA contain highly toxic substances including different hydrofluorocarbons (including tetrafluoroethane and difluoroethane) which exert a psychoactive effect on the central nervous system. Several cases of inhalant-induced lethal arrhythmia such as ventricular fibrillation evolving to torsade de pointes and leading to cardiac arrest, have been reported in the literature.