Forensic pathologists have long recognised that the process of decomposition causes gas formation. Bacteria proliferate in the dead body, particularly in the blood vessels, breaking down blood and tissues and generating gas in a process of putrefaction. If decomposition was responsible for the intravascular gas then this gas should also be seen in non-diving fatalities. Resuscitation, using end...

onstrated no signs of infection and laboratory studies did not reveal a source of infection. Scattered cerebral infarction from arterial air emboli was unlikely because no evidence of ischemia was detected on a diffusion-weighted MRI. The timing of cortical blindness in our patient, shortly after inadvertent arterial entry during attempted PICC line placement, and the focal leptomeningeal enhan...

1. Saadatnia M, Naghavi N, Fatehi F, Zare M. Oral contraceptive misuse as a risk factor for cerebral venous and sinus thrombosis. J Res Med Sci 2012;17:344-7. 2. Fathizadeh N, Salemi P, Ehsanpour S.Dissatisfaction with contraceptive methods.Iran J Nurs Midwifery Res 2011;16: 79-82. 3. Ehsanpour S, Aghaii A, KheirabadiGR.The association of contraceptive methods and depression. Iran J Nurs Midwif...

Micro-emboli have been reported to occur commonly during arthroscopic surgery, which is frequently performed as an orthopedic surgical procedure. We here report a patient who experienced unilateral postoperative visual loss after a hip arthroscopy using irrigation fluid in the supine position without any evidence of external compression to either eye throughout the surgical procedure. Retinal f...

BACKGROUND AND PURPOSE Doppler emboli detection is an established technique, but the nature of the underlying embolic material remains unclear. The intensity and spectral distribution of emboli signals could help to distinguish between signals arising from formed and gaseous emboli. We undertook this study to develop and evaluate a differentiation algorithm based on the spectral characteristics...

Intracranial calcifications may represent calcified cerebral emboli. Calcified emboli may be overlooked even though cerebral CT is widely used as a stroke assessment. We report 4 cases of calcified cerebral emboli and demonstrate the value of CT in the diagnosis and temporal evaluation of such emboli.

Hydraulic conductivity of the xylem is computed as the quotient of mass fiow rate and pressure gradient. Measurements on excised plant stems can be difficult to interpret because of timedependent reductions in fiow rate, and because of variable degrees of embolism. Using Acer saccharum Marsh, stems, we found that certain perfusing solutions including dilute fixatives (e.g. 0.05% formaldehyde) a...

____________ _ Seven commercially available arterial filters were evaluated for their effectiveness in removing gaseous emboli produced by various sources. All filters were of the screen type and ranged from 2040 micron pore size. The first phase of the study consisted of an appraisal of carbon dioxide flushing to facilitate priming. Two filters of each type were used. The first filter was prim...

OBJECTIVE To test the hypothesis whether enriched air nitrox (EAN) breathing during simulated diving reduces decompression stress when compared to compressed air breathing as assessed by intravascular bubble formation after decompression. METHODS Human volunteers underwent a first simulated dive breathing compressed air to include subjects prone to post-decompression venous gas bubbling. Twel...

Eleven cardiac operations are reported in which there was electroencephalographic and/or clinical evidence of seizure activity during cardiopulmonary bypass (CPB). In four patients seizure activity appeared after acute episodes of cerebral ischaemia resulting from either hypotension or pump-generated emboli occurring at the beginning of CPB, or from air embolism occurring at the end of CPB when...