Evidence of actual death. Definition

Medical Definition: evidence of actual death

Evidence or signs that have been proposed for the differential diagnosis between the death and the apparent death: a) reacting hydrogen sulfide or sign vulgar Icard, which determines the presence of hydrogen sulfide by a blackening of paper impregnated with lead acetate, which is placed at the nostrils of the corpse, b) finding of acid pH in the liver or spleen tissue of the body through a puncture (Brissemoret and Ambard), c) investigation of pH in the subcutaneous tissue (De Dominicis), d) determination pH in the aqueous humor of the eye (De Laet) e) determining the pH in the subcutaneous tissue, obtained by the skin forcipresión (Icard) f) investigation of pH in the tear secretion (Lecha-Marzo); g ) study of pH in muscle tissue (thrush), h) line technique, which determines the pH in a silk or cotton thread which is passed first through a fold of skin (Icard, Leonard Rebello) i ) Bouchut test, which consists of the auscultation of heart sounds; j) Rebouillat sign, a small amount of ether injected subcutaneously, spreads in the living subject, whereas in real death, escaping from the hole injection, the test is made visible by staining with picric acid ether or methylene blue; k) sign Ripauld: external pressure on the eyeball alters the shape of the pupil in all cases, but this deformation is permanent death if true, l) and Melvin Salibury sign: when death is imminent, the movement ceases in the vessels of the retina, so the blood column is broken, as evidenced by observation with an ophthalmoscope; m ) sign Magnus: the constriction of a limb, as the arm, no venous congestion occurs in the distal part, which is due to the lack of blood flow in real death, n) sign Monteverde: if death is real, subcutaneous injection of ammonia does not cause any local reaction, N) D'Halluin sign: conjunctival instillation of a solution in vivo dionina causes flushing and watery eyes, what happens if not actual death; o) capilarotanatodiagnóstico: verifying the existence of circulation in the capillaries (Aznar), p) dinamoscopia: auscultation of the muscles through a stethoscope, which the author called Necroscope (Collonges), q) demonstration of the cessation of redox reactions the body, which is performed by checking the existence of an oxidation of a needle inserted into the interior of a muscle, death would be true if, within one hour will not rust (Laborde). Of these, the most sensitive and easiest implementation is to Lecha-Marzo, that even at a time, it was compulsory in Spain. At present, all these tests are deprecated. The real death diagnosis, especially important in cases where vital signs are maintained by artificial means, and raises the possibility of removing an organ transplant is performed now by the findings of a series of neurological symptoms, they can even be formalized and set by law. The study of a single neurological sign is insufficient. For example, the existence of a flat electroencephalogram, which has been given much value may be due to barbiturate poisoning.

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