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Biomedical subjects

T Marsepoil

Publications and source records attributed to T Marsepoil.

36 records · Page 2Linked to original sources
PubMed1985

[Torsades de pointes and hypomagnesemia].

The authors report a case of "Torsades de pointe" occurring in a patient subjected to intensive surgical care and presenting several causes of magnesium loss: mutilating abdominal surgery, exteriorized gastric fistula, administration of Henle's loop diuretics, electrolytic disorders and exclusive parenteral nutrition without any magnesium Mg supplement. The arrhythmia appeared in the third week and the usual treatment was ineffective. The level of plasma magnesium was below the measurable values on three separate occasions. The administration of magnesium sulphate corrected the dysrhythmia which did not recur. Experimental and clinical data demonstrating the antiarrhythmic effect of magnesium are recalled. The electrophysiological explanation is based on the inhibition of potassium and calcium flow across the cell membrane; magnesium ion has a stabilizing membrane effect and an antagonistic effect on ectopic automaticity. They are particularly important on slowly depolarizing tissue (nodal cells) or partially depolarized cells (ischaemic or digitalis treated cardiac tissue). In intensive care, circumstances for magnesium depletion by digestive or renal losses and by lack of parenteral magnesium supplement are frequently combined. Systematic intravenous administration of magnesium is necessary when such conditions are found and whenever ventricular or auricular dysrhythmias occur.

Calcium↗
PubMed1984

[Postoperative pernicious malarial attack in a subject, a native of an endemic zone].

The case of an Angolan woman who underwent, in her country, an hysterectomy requiring the transfusion of two whole blood units is reported. In the immediate postoperative period, acute renal failure with anuria set in, justifying the patient's transfer to an intensive care unit in France. Upon admission, she had a thick blood film and serology work-up for Plasmodium falciparum, both of which were negative. On the 20th day, the patient presented a pernicious malarial crisis with a concurrent rise in IgG and IgM titres, indicating recent contamination. The mode of infection is discussed: contaminating anopheline bites associated with the interruption of chemoprophylaxis rigorously followed up till then; post transfusion malaria, almost unavoidable in an endemic country; accidental inoculation by Plasmodium falciparum of the dialysis equipment. Finally, the possibility of pernicious malaria aggravating the initial acute renal failure and hypocalcaemia is also discussed.

Acute Kidney Injury↗
PubMed1983

[Voluntary poisoning by intravenous injection of caustic soda].

A voluntary intoxication by injection in the left basilic vein of 10 ml of concentrated caustic soda is reported. The main effects were, besides local necrosis, haemolysis, acute renal failure with initial anuresis, intravascular coagulation and cyanosis with a normal Pao2 due to methaemalbuminaemia. This was confirmed by using the usual spectrophotometric methods as well as electrophoretic methods.

Acute Kidney Injury↗
PubMedDate not supplied

[Primary ulcerations of the small intestine].

The authors report a recent case of primary ulceration of the small intestine revealed by spontaneous perforation. This is a rare condition with a non specific semiology which only exceptionally permits diagnosis before complications occur. The latter are dominated by perforation, gastrointestinal hemorrhage and a sub-acute obstructive syndrome. The lesion, generally single, is found on the anti-mesenteric border of the jejunum or terminal ileum on a short only slightly inflammed segment and pathological examination does not reveal any specific process. Treatment is surgical. It confirms the diagnosis and enables a segmentary resection or simple suture to be carried out. The condition does not recur. A complete etiological investigation is required to exclude other causes of small intestinal ulceration before its "spontaneous" nature may be inferred. Infectious and vascular theories are most often proposed among the pathophysiological hypotheses. Far from being exclusive, these theories may interact and enable a coherent multi-factorial mechanism to be proposed as to the origin of the ulceration (regardless of its initial cause). Spontaneous ulcers are therefore included in a wider nosological classification ranging from stress ulcer to necrosing enteritis.

Adult↗