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Biomedical subjects

G Bouachour

Publications and source records attributed to G Bouachour.

32 records · Page 2Linked to original sources
PubMed1992

[Use of intravenous adrenalin in severe acute asthma].

The efficacy of and tolerance to intravenous Adrenaline (IV) have been assessed in cases of acute severe asthma (AAG). From January 1983 to March 1990 there were 56 episodes of AAG treated by intravenous Adrenaline using an average dose of 0.33 microgram per kilogramme per minute, in association with intravenous steroid therapy and Aminophylline (0.6 mg/kg per hour). A group of 12 patients were ventilated before admission and were excluded from the study. Two groups were defined on the basis of their admission PaCO2: Group A with 30 episodes of AAG and a PaCO2 above 45 mm of mercury, Group B with 14 episodes of AAG and a PaCO2 of less than 45 mm of mercury. The clinical improvement was equally rapid in both groups on average 8.7 (plus or minus 8.2) hours in Group A and 14.6 (plus or minus 15.7) hours in Group B. Artificial ventilation was only required in 2.3% of cases (7% in Group A and none in Group B). Treatment using intravenous Adrenaline is well tolerated as is shown by the absence of any worsening of the tachycardia, the significant fall in blood pressure after correcting the PaCO2 in Group A and the absence of any raised blood pressure in Group B. In conclusion, treatment with intravenous Adrenaline associated with IV Theophylline and IV corticosteroids based on the fact of its rapid action and that it is well tolerated, means that this drug should be considered as part of the therapeutic arsenal during acute severe asthmatic attacks in patients who are breathing spontaneously.

Acute Disease↗
PubMed1991

Aminohydroxypropylidene bisphosphonate (AHPrBP) treatment of severe immobilization hypercalcaemia in a young patient.

We report a case of severe hypercalcaemia in a 16-year-old patient, 24 weeks after immobilization for quadriplegia. The biochemical and histomorphometric parameters showed increased osteoclastic resorption and decreased osteoblastic formation. Hydration, chair sitting, salmon and porcine calcitonin, sodium etidronate were unable to normalize the hypercalcaemia. The new antiosteoclastic agent, 3-amino-1 hydroxypropylidene-1, 1-bisphosphonate (AHPrBP), was effective in normalizing serum calcium and biochemical parameters of osteoclastic activity within five days. Bone histomorphometry showed a marked reduction in osteoclastic activity after AHPrBP treatment, as well as a drastic depression of osteoblastic activity, presumably due to the reduction of bone turnover. This case represents to our knowledge, the first successful use of AHPrBP in the treatment of immobilization hypercalcaemia.

Adolescent↗
PubMed1991

[Electroencephalographic silence after intoxication with a carbamate tranquilizer].

A case of acute meprobamate poisoning in a 43 year-old-woman is reported. Twenty five hours after admission in the intensive care unit, deep coma and cerebral electrical silence were observed whereas the meprobamate plasmatic concentration was 250 mg/l. The patient recovery was uneventful. Meprobamate analysis must be performed for unexplained coma with isoelectric EEG.

Adult↗
PubMed1990

Post-traumatic limb ischemia: prediction of final outcome by transcutaneous oxygen measurements in hyperbaric oxygen.

In limb injuries (amputation, laceration injuries, or compartment syndrome), a circulatory insufficiency with a total or subtotal ischemia may occur and jeopardize the result of reconstructive surgery. Transcutaneous oxygen monitoring has been shown to reflect tissue perfusion and has been advocated to predict the final outcome of major vascular trauma of the limb. Unfortunately, in normal atmospheric conditions, this test is not sufficiently discriminative; we evaluate the effect of hyperbaric oxygen on the efficiency of this test. 23 patients with major vascular trauma of the limbs were evaluated by clinical examination and transcutaneous oxygen pressure (PTCO2) measurements. Sixteen had arterial repair and seven had clinical evidence of peripheral ischemia without an arterial lesion. In normal air, the transcutaneous oxygen values in the traumatized limb, of these 23 patients, were significantly lower than in the nontraumatized limb. But neither the absolute PTCO2 value nor the ratio between the traumatized limb's PTCO2 and that of the nontraumatized one can predict the final outcome (amputation). In hyperbaric oxygen (2.5 ATA), this ratio is significantly higher in the group where the surgery will succeed than in the group where final amputation will be needed (81.2 +/- 26.0 vs. 15.2 +/- 13.1; p less than 0.01). The overall sensitivity and specificity of prediction of the limb's final outcome when the bilateral PTCO2 ratio in 2.5 ATA pure oxygen is less than 0.40, are 100% and 94%, respectively. But what is perhaps more interesting is that, when considering a ratio value of less than 0.20, amputation can be predicted with a 100% true predictive value.(ABSTRACT TRUNCATED AT 250 WORDS)

Acute Disease↗
PubMed1988

Fusion of amphibian proximal convoluted cells into giant cells.

We applied the technique of renal cell fusion to the proximal convoluted tubule of Necturus kidney. Giant fused cells from this segment exhibit stable cell membrane potential, Vm, for several tens of minutes. These cells display a number of electrophysiological properties characteristic of both the apical and basolateral membranes of the proximal tubule. These include 1) significant K+ conductance, 2) no detectable Cl- conductance, 3) apical Na-glucose and Na-amino-acid electrogenic carriers, 4) basolateral ouabain-sensitive Na-K pump activity and 5) basolateral Na/HCO3 cotransport.

Animals↗
PubMedDate not supplied

[Pseudo-septicemic pyoderma gangrenosum and breast cancer. Apropos of a case caused by an intramuscular injection].

We report a case of pyoderma gangrenosum (PG) mimicking a severe infectious skin disease in a woman with metastatic breast cancer. PG started at the site of an intramuscular injection administered a few days previously, and it subsequently extended. The skin disease was cured by high-dose corticosteroid therapy and clofazimine, but it marked a turn for the worst in the course of the breast cancer which became rapidly fatal.

Breast Neoplasms↗
PubMedDate not supplied

[Generalized status epilepticus after ingestion of ibuprofen (Brufen), disclosing systemic lupus erythematosus].

We report a case of aseptic meningoencephalitis induced by ibuprofen (Brufen) in a 24-year old unmarried woman with unrecognized systemic lupus erythematosus. The neurological manifestations induced by ibuprofen revealed the systemic disease. Clinicians confronted with aseptic meningitis or meningoencephalitis developed after treatment with a non-steroidal anti-inflammatory drug, notably ibuprofen, should investigate for systemic disease.

Adult↗