Lege Artis Medicinae

[Asserting basis-bolus principle by analogue insulin preparations in pre-pubertal child with diabetes]

BLATNICZKY László

JUNE 15, 2012

Lege Artis Medicinae - 2012;22(05)

[INTRODUCTION - The choice of insulin combination therapy in children with type 1 diabetes mellitus is determined basically by the diet as well as the age of the patient. However, life rhythms of individual children are widely different. As a consequence, insulin therapy must be tailored to individual needs, by chosing the optimal one from the available insulin products with different efficacy curves. The aim is, of course, to maintain near-normoglycaemia for years or decades. CASE STUDY - The author presents the case of a 10-year-old girl with diabetes for 4 years, whose insulin treatment has involved a number of combinations. Good metabolic balance could be obtained by premixed insulin preparations for more than two years. However, subsequent intensive treatment with human insulins had poor results. This was primarily due to the fact that the child had a rather hectic daily schedule and eating habits, although she ate - appropriately for her age - six meals per day. After changing the ratios of the meals while maintaining her six-mealsper- day regime, an analogue glargine/glulisine combination therapy was induced, with a significant increase in the basal/ bolus ratio. This treatment was successful: HbA1c level got to the target range, without changes - theoretically caused by the rapid analogue - in hypo- and hyperglycaemic periods before and after small meals, respectively. CONCLUSION - During the time of remission, treatment with premixed human insulin can maintain good metabolic balance even for years, while saving (at least) two pricks per day. Insulin treatment intensified by analogue insulins (glulisine/glargine) may be attempted in prepubertal children needing six meals a day, provided their lifestyle raises problems. Glargine, given in an increased ratio, can compensate the hyperglycaemic effect of minimised small meals.]

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[Disturbances of the bone metabolism in type 1 diabetic patients]

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[AIMS - Because of contradictory data in literature our aim was to study bone metabolic disturbances and their correlates with anthropometric and metabolic parameters in type 1 diabetic patients (T1DM). Since quantitative bone ultrasound (QUS) measures bone qualities different from BMD, and it has only been scarcely investigated in T1DM, our aim was to describe covariates of QUS parameters. PATIENTS AND METHODS - Osteodensitometry was performed (lumbal spine, femur neck - DEXA; calcaneal ultrasound) on 115 T1DM patients (34 male, 81 female; mean age: 41.4±11 [± SD] yrs; BMI: 23.9±3.0 kg/m2; diabetes duration: 21.6±11.7 yrs; HbA1c: 8.1±1.3%). In addition anthropometric, blood pressure and laboratory parameters (HbA1c, lipids, renal function, fibrinogen, homocystein, PTH, TSH, β-CrossLaps, vitamine D3, osteocalcin, osteoprotegerin) were measured, data using a questionnaire were collected. RESULTS - The prevalence of osteoporosis was 9/112 (8%). A further 21/62 patients with osteopenia were found. Disturbances of bone metabolism have been more frequently proven on lumbal spine (p<0.001). Using multiple linear regression modelling, the independent covariates of osteopathy were systolic blood pressure, body weight, β-CrossLaps and cystatin C. The average broadband ultrasound attenuation (BUA) was 114.2±14.9 in males vs. 108.4±16.3 dB/MHz in females (p=0.07), the mean speed of sound (SOS) 1552±26 in males vs. 1559±32 m/s in females (p=0.32). SOS values in addition to bone density were associated with fracture risk. The independent covariates of BUA were body weight and height (R=0.473, p<0.001), and of SOS only fibrinogen (R=0.305, p=0.032). CONCLUSIONS - According to our results the prevalence of osteoporosis in acceptable controlled T1DM patients is relatively low. The more common metabolic calcipenic osteopathy show a correlation with body weight, markers of bone resorption and diabetic complications/co-morbidities (nephropathy, hypertension) being therefore not only an a priori consequence but also a complication of diabetes mellitus. Our data provide baseline data of QUS in type 1 diabetic patients. Because of the frequency of lower bone mineral content and their known high fracture risk bone metabolism screening of T1DM patients has to be considered.]

Lege Artis Medicinae

[Measurement of coronary artery calcification in adults with type 1 diabetes mellitus using dual-source, multi-slice computed tomography]

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Lege Artis Medicinae

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Lege Artis Medicinae

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Lege Artis Medicinae

[Possibilities of applying basis/bolus method in treatment of adolescent with type 1 diabetes mellitus]

BLATNICZKY László

[INTRODUCTION - Since the end of the pastcentury, the basis/bolus method has been adeterminate factor of adjusting insulin thera-py. Experiences with insulin pump treatmentprove that well-quantified and adequatelytimed basal insulin treatment can fully com-pensate for the diurnal glucose-producingactivities of the liver and the diurnal changesin the activity of insulin receptors. Suitablyselected basal insulin treatment can, there-fore, keep the changes in blood sugar levelthat are dependent of the diet’s carbohydratecontent well under control. CASE REPORT - By presenting the approxi-mately five-year treatment of an adolescentboy, the author presents the current options(and failures) of insulin therapy that might beused with more or less success. Each treat-ment approach had its place in the variousstages of the patient’s diabetes. Nevertheless,insulin pump therapy, admittedly the moststate-of-the-art method today was unsuccess-ful due to patient’s lack of compliance, thusthis treatment had to be stopped. Still, on thebasis of the experiences with insulin pumptherapy, the restored intensive-conservativetreatment was set up on glargine basalinsulin, defining doses of bolus in correlationwith 10 grams of carbohydrate, which madethe diet less strict. This approach resulted ina considerable improvement of the patient’smetabolic profile. CONCLUSION - The right choice of thedoses and efficacy curve of basal insulin isessential for achieving a good metabolic bal-ance during intensive-conservative therapy.In case of deteriorating metabolic balance,suspending the inefficient insulin pump ther-apy is justified and means no disadvantagefor the patient, as long as the subsequentadjustment is prudent. By defining doses of ashort-acting bolus insulin analogue in corre-lation with carbohydrate intake along withglargine therapy permits adaptation to themetabolism of patients with poor compli-ance and unsatisfactory lifestyle - in expec-tation of better results. ]