1/199. Evaluation of serum markers of neuronal damage following severe hypoglycaemia in adults with insulin-treated diabetes mellitus.BACKGROUND: Neurone-specific enolase (NSE) and protein s-100 (S-100) may be used as markers of acute neuronal damage in humans with neurological disorders. METHOD: To evaluate their use following a single episode of severe hypoglycaemia (defined as an episode requiring external assistance to aid recovery), serum concentrations of NSE and S-100 were measured following hypoglycaemia which had not caused persistent neurological impairment in 16 patients with insulin-treated diabetes (the 'hypo' subjects), and in three diabetic patients who died following severe hypoglycaemia. The serum proteins were also measured in 10 subjects with insulin-treated diabetes who had not experienced an episode of severe hypoglycaemia within the preceding year (the 'control' subjects). RESULTS: No differences in serum concentrations of NSE and S-100 were observed between the 'control' and the 'hypo' subjects at either 36 hours or seven days after the episode of severe hypoglycaemia (p>0.05). However, in two of the three subjects who died following hypoglycaemia, serum concentrations of the markers were markedly elevated. CONCLUSIONS: Any neuronal injury occurring during severe hypoglycaemia that is not associated with persistent neurological deficit is insufficient to provoke elevation of these serum markers. However, the measurement of serum concentrations of NSE and S-100 may have a prognostic role in evaluating clinical outcome following severe hypoglycaemia which is associated with neurological damage.- - - - - - - - - - ranking = 1keywords = diabetes mellitus, diabetes, mellitus (Clic here for more details about this article) |
2/199. hypoglycemia associated with high doses of sertraline and sulphonylurea compound in a noninsulin-dependent diabetes mellitus patient.Unlike other selective serotonin reuptake inhibitors (SSRIs), sertraline has linear pharmacokinetics so that increases in dose lead to proportional increases in drug concentration. The half-life of sertraline is about 26 h so that it reaches a steady state in one week, according to the product monograph. hypoglycemia associated with sertraline and coadministration of oral hypoglycemics belonging to the sulphonylurea derivatives has rarely been reported. A patient with schizoaffective disorder with non-insulin-dependent diabetes mellitus (NIDDM) treated with sertraline, risperidone and glyburide who developed hypoglycemia is presented. The article highlights that inhibition of P450 enzymes can be affected by several different factors. Interactions are possible whenever a patient concomitantly receives two drugs that bind to the same P450 system Greater inhibition was likely induced at doses higher than those recommended. This process was reversed within 10 days of discontinuing the sertraline. Good glycemic control followed discontinuation of psychotropic drugs and the oral hypoglycemic agent. knowledge of the individual P450 enzymes is important in the metabolism of individual drugs, together with an understanding of the patient's drug metabolizing ability. These factors may lead to more appropriate prescribing and further research into specific P450 enzymes responsible for metabolism of particular drugs, which remains unclear.- - - - - - - - - - ranking = 1.2147137521257keywords = diabetes mellitus, diabetes, mellitus, insulin-dependent (Clic here for more details about this article) |
3/199. The effect of maternal hypothermia on the fetal heart rate.Fetal bradycardia is a recognized response to maternal hypothermia but has not previously been reported in conjunction with diabetes. A 30-year-old insulin-dependent diabetic was admitted at 35 weeks gestation for control of her diabetes. She developed maternal hypothermia and hypoglycemia and the fetal heart rate fell to 100 beats per minute (b.p.m.). However, the fetal heart rate gradually returned to normal after rewarming the patient.- - - - - - - - - - ranking = 0.15330679654789keywords = diabetes, insulin-dependent (Clic here for more details about this article) |
4/199. Riding out a diabetic emergency.Acute complications of diabetes are like a runaway roller coaster. Diabetes or its treatment can rocket your patient's blood glucose level to dizzying heights or plunge it to life-threatening lows. hypoglycemia, the most common endocrine emergency, typically occurs in a known diabetic patient whose therapy with insulin or oral diabetes agents goes awry. At the opposite extreme, soaring blood glucose levels mark the acute conditions diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic nonketotic state (HHNS). These complications may send the patient to the emergency department (ED) before he even knows he has diabetes. In this article, I'll explain how these problems develop and spell out nursing measures to get your patient back on track.- - - - - - - - - - ranking = 0.19243685534729keywords = diabetes (Clic here for more details about this article) |
5/199. Clinical presentation of PCOS following development of an insulinoma: case report.A 24 year old woman presented with a prolonged clinical history of fasting and exertional hypoglycaemia, and was subsequently diagnosed with an insulinoma. Concurrent symptoms of oligomenorrhoea and hyperandrogenism of similar duration were noted. Biochemically, hyperinsulinaemia was observed in association with a raised serum luteinizing hormone (LH), raised testosterone and androstendione concentrations. Surgical removal of the insulinoma resulted in resolution of the clinical and biochemical features of the polycystic ovarian syndrome (PCOS) but minimal change was observed in the ovarian ultrasound appearances. This case demonstrates the role of insulin in mediating the hypersecretion of both LH and androgens in women with polycystic ovaries. We suggest that hyperinsulinaemia converted occult 'polycystic ovaries' to become clinically manifest as 'polycystic ovary syndrome'. This paradigm has clear implications for women with insulin dependent diabetes mellitus who presumably have systemic hyperinsulinaemia.- - - - - - - - - - ranking = 0.21792719077545keywords = diabetes mellitus, diabetes, mellitus (Clic here for more details about this article) |
6/199. Normal pressure hydrocephalus in diabetic patients with recurrent episodes of hypoglycemic coma.The pathophysiology of brain damage induced by severe hypoglycemia is still unknown. We experienced a case with type 1 diabetes and recurrent severe hypoglycemic coma who showed a central brain atrophy and an abnormal cerebrospinal fluid flow, suggesting normal pressure hydrocephalus. Following this case, the CSF flow was studied using 111In-DTPA cisternography in six consecutive diabetic patients admitted for repeated episodes of hypoglycemic coma. All the patients showed the central brain atrophy on computed tomography and four of them (67%) had the ventricular reflux, with delayed clearance of 111In-DTPA. Two patients with abnormal CSF flow showed cognitive dysfunction by WAIS or WAIS-R. In contrast, none of five randomly selected diabetic patients, without hypoglycemic coma showed abnormal CSF flow. Our results suggest the presence of normal pressure hydrocephalus in diabetic patients with recurrent hypoglycemic coma. It may associate with the cognitive dysfunction.- - - - - - - - - - ranking = 0.064145618449098keywords = diabetes (Clic here for more details about this article) |
7/199. Reversal of hypoglycemia unawareness in a long-term type 1 diabetic patient by improvement of beta-adrenergic sensitivity after prevention of hypoglycemia.The purpose of this study was to assess the effect of strict avoidance of hypoglycemia on beta-adrenergic sensitivity in a type 1 diabetic patient with hypoglycemia unawareness and a diabetes duration of 55 yr. beta-Adrenergic sensitivity was determined by an isoproterenol test and was expressed as the lowest dose of isoproterenol that increases the heart rate by 25 beats/min (IC25). plasma epinephrine and symptom responses to hypoglycemia were determined during a 3-h hypoglycemic (3 mmol/L) clamp. Initially, the patient had a near-normal counterregulatory plasma epinephrine response to hypoglycemia but reduced beta-adrenergic sensitivity (IC25, 2 microg) compared to 10 hypoglycemia aware, type 1 diabetic patients (0.65 /- 0.14 microg) and 10 normal control subjects (1.13 /- 0.21 microg). After 1 yr of strict avoidance of blood glucose levels below 4 mmol/L, the IC25 decreased to 0.25 microg, reflecting improved beta-adrenergic sensitivity. In conclusion, the reduced beta-adrenergic sensitivity in this patient was probably the reason for hypoglycemia unawareness and was reversed by strict avoidance of hypoglycemia.- - - - - - - - - - ranking = 0.064145618449098keywords = diabetes (Clic here for more details about this article) |
8/199. The care of students with insulin-treated diabetes mellitus living in university accommodation: scope for improvement?Concern has been expressed about the welfare of young adults with Type 1 diabetes mellitus who leave home to attend university or college for tertiary education. This has been highlighted by the local experience in Edinburgh of two male students with Type 1 diabetes, both of whom died from metabolic complications of diabetes during their first term at universities distant from their homes. One student died following the development of cerebral oedema secondary to diabetic ketoacidosis, which was probably precipitated by prolonged coma after an episode of severe hypoglycaemia. Another student, who was found 'dead in bed', had a history of previous severe hypoglycaemia. At a Fatal Accident Inquiry in Edinburgh, held following the death of the first student, recommendations were made to improve the care and personal safety of students with diabetes living in university accommodation. Despite the report being circulated to all Scottish universities, the second student died within three years of the inquiry. Further efforts to protect the welfare of students with Type 1 diabetes who are attending centres for tertiary education away from their home environment may require the more active participation by diabetes healthcare professionals.- - - - - - - - - - ranking = 1.4103640461227keywords = diabetes mellitus, diabetes, mellitus (Clic here for more details about this article) |
9/199. Loss of hypoglycemia awareness in an adolescent with type 1 diabetes mellitus during treatment with fluoxetine hydrochloride.A 17-year-old boy with type 1 diabetes mellitus developed new loss of hypoglycemia awareness while being treated with fluoxetine hydrochloride for depression. hypoglycemia unawareness resolved after this medication was discontinued.- - - - - - - - - - ranking = 1.0896359538773keywords = diabetes mellitus, diabetes, mellitus (Clic here for more details about this article) |
10/199. Severe hypoglycemia and reduction of insulin requirement in a girl with insulin-dependent diabetes mellitus: first sign of a craniopharyngioma.A girl with a history of insulin-dependent diabetes mellitus since 5.5 years, and Hashimoto's thyroiditis since 12 years, developed episodes of severe hypoglycemia from the age of 12 years. This was associated with falling insulin requirements, from 0.78 U/kg/day at 11 years to 0.34 U/kg/day at 16 years. At 16 years she was found to have GH, gonadotropin, ACTH, and probably also TSH deficiency with hyperprolactinemia. MRI scan revealed a cystic intrasellar craniopharyngioma with moderate suprasellar extension. In spite of cortisol replacement at 17 years, insulin requirement fell further to 0.25 U/kg/day at 18 years. In this girl, decreasing insulin requirements represented an early manifestation of combined growth hormone and cortisol deficiency.- - - - - - - - - - ranking = 1.2147137521257keywords = diabetes mellitus, diabetes, mellitus, insulin-dependent (Clic here for more details about this article) |
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