Hemodynamics of low-pressure cardiac tamponade: An illustrative case report.

A 55-year-old male with acute pericarditis presented with low-pressure cardiac tamponade (LPCT) unresponsive to volume infusion. Subsequent pericardiocentesis resulted in hemodynamic improvement and unmasking of pericardial constriction. This case provides illustrative hemodynamic tracings of LPCT.

Fatal bone marrow embolism.

A 45-year-old man presented to the emergency department with fever, hypotension, respiratory distress, and altered mental status. Imaging revealed a femoral fracture and arterial blood gas showed severe metabolic acidosis. He died soon after admission.

Late-onset of ornithine transcarbamylase deficiency: A rare medical examiner case.

Ornithine Transcarbamylase (OTC) is an enzyme of the urea cycle, which converts ammonia into urea in the liver cells. OTC plays a crucial role in the breakdown and removal of nitrogen in the body. OTC deficiency is a rare X-linked recessive disorder that classically presents in early life with signs of hyperammonemia and progressive central nervous system involvement resulting in seizures, coma, and death.

Development of a mitochondrial 12S rDNA analysis for distinguishing Sciuridae species with potential to transmit Ehrlichia and Borrelia species to feeding Amblyomma americanum (Acari: Ixodidae).

Unique oligonucleotide probes were synthesized to distinguish among closely related vertebrate mitochondrial rDNA sequences present in residual bloodmeals in emergent Amblyomma americanum (L.) (Acari: Ixodidae) nymph life-stage ticks. Use of these probes enabled the identification of the Eastern gray squirrel as an important bloodmeal source in nymphs harboring Ehrlichia and Borrelia species.

Invasive honeysuckle eradication reduces tick-borne disease risk by altering host dynamics.

Despite the ubiquity of invasive organisms and their often deleterious effects on native flora and fauna, the consequences of biological invasions for human health and the ecological mechanisms through which they occur are rarely considered. Here we demonstrate that a widespread invasive shrub in North America, Amur honeysuckle (Lonicera maackii), increases human risk of exposure to ehrlichiosis, an emerging infectious disease caused by bacterial pathogens transmitted by the lone star tick (Amblyomma americanum). Using large-scale observational surveys in natural areas across the St.