Diabetes mellitus constitutes a global health threat, with increasing burden of disease in low and middle-income countries witnessing ongoing epidemiological transition including Sudan.To study the prevalence of type 2 diabetes mellitus (T2DM) and prediabetes and determine the relationship to gender, age, waist circumference, body mass index, residence and ethnicity among the adult population in north Sudan.A cross-sectional, population-based study in Northern State and River Nile State using random multi-stage cluster sampling targeting 5376 participants from 14 localities divided into 60 urban and 40 rural clusters. In each cluster, 60 households were studied. Blood glucose level and anthropometric measurements were recorded and a questionnaire containing demographic data was obtained from each participant.The prevalence of T2DM among participants was 18.7% and prediabetes was 12.9%. Among people living with T2DM, 694(71.0%) were known cases of T2DM, whereas 284(29.0%) were newly diagnosed cases. The significant associated risk factors for T2DM included urban residence (AOR 1.23, 95%CI 1.09–1.41), age above 60 years (AOR 4.77, 95%CI 4.04–5.63), obese BMI (AOR 1.26, 95%CI 1.03–1.55) and central obesity (AOR 1.39, 95%CI 1.14–1.68). Compared to indigenous population, individuals of Egyptian descents (AOR 1.28, 95%CI 1.04–1.57) and mixed origin (AOR 1.24, 95%CI 1.04–1.48) had increased risk of T2DM.The prevalence of T2DM and prediabetes in north Sudan have increased significantly since 1996 with variations between ethnicities which showed to be an independent risk factor for T2DM. Health authorities are recommended to set plans to meet the health needs of these communities.

To assess the effects of antihypertensive treatment with the angiotensin-converting enzyme (ACE) inhibitor perindopril on insulin sensitivity, plasma insulin, and lipoprotein metabolism in overweight hypertensive patients, we measured the insulin sensitivity index (SI, determined according to the minimal model method of Bergman), fasting plasma insulin and glucose concentrations, serum total triglyceride and lipoprotein cholesterol fractions, and blood pressure (BP) in 30 overweight [mean body mass index (BMI) 30.9 kg/m2], nondiabetic patients with essential hypertension after a 4-week run-in period and after 6 weeks of perindopril (n = 20) or placebo (n = 10) administered in a double-blind fashion. Furthermore, we estimated their state of physical fitness using the Conconi bicycle ergometer test before and after perindopril or placebo administration. SI was low in our study population (3.2 vs. 13.3 10(-4) ml.microU-1.min-1 in normal lean control subjects). It did not differ between the perindopril and placebo group after the placebo run-in period (3.1 vs. 3.3 x 10(-4) ml.microU-1.min-1) and was not influenced by perindopril (3.3 x 10(-4) ml.microU-1.min-1) or placebo (3.6 x 10(-4) ml.microU-1.min-1) treatment. Moreover, no significant changes were apparent in fasting plasma insulin and glucose, the areas under the glucose and insulin curves, the glucose disappearance rates, serum total triglycerides (TG), or cholesterol or lipoprotein cholesterol fractions between run-in and active treatment phases in the perindopril or the placebo group, respectively. Heart rate (HR), body weight, and anaerobic threshold remained stable in both groups. Compliance, assessed by pill counting was > 90% in both groups at all visits. Therefore, the ACE inhibitor perindopril is neutral with regard to insulin sensitivity, plasma insulin and glucose, and lipoprotein metabolism in overweight, nondiabetic patients with essential hypertension.

To investigate the effects of antihypertensive treatment with the angiotensin-converting enzyme (ACE) inhibitor lisinopril on insulin sensitivity and related metabolic variables, the insulin sensitivity index (SI), determined with the Minimal Model Method of Bergman, fasting plasma insulin and glucose concentrations, serum total triglyceride and lipoprotein cholesterol fractions, and blood pressure were assessed in 24 lean, non-diabetic patients with essential hypertension. Following a double-blind, randomised crossover design, these parameters were measured after a 4-week run-in period, after 8 weeks of lisinopril or placebo, and after an additional 8 weeks on placebo or lisinopril, respectively. Furthermore, the level of physical fitness was estimated using the Conconi bicycle ergometer test. SI was low in this study population (5.6 vs 13.3 · 10−4·min−1·mU−1·1−1 in normal lean control subjects). It did not differ between the placebo run-in phase, the lisinopril phase, and the placebo crossover phase (5.8, 5.5, and 5.4·10−4·min−1·mU−1·1−1, respectively). Moreover, during the administration of lisinopril, no significant changes occurred in fasting plasma insulin and glucose, areas under the glucose and insulin curves, glucose disappearance rate, serum total triglycerides, and cholesterol or lipoprotein cholesterol fractions. Heart rate at rest, body weight, and anaerobic threshold remained stable throughout the study. Compliance assessed by pill-counting exceeded 90% at all visits. These findings demonstrate that the ACE inhibitor lisinopril is neutral with regard to insulin sensitivity, plasma insulin and glucose, and lipoprotein metabolism in patients with essential hypertension.

Association between insulin resistance and hypertension: Insulin resistance and reactive hyperinsulinemia occur not only with obesity, impaired glucose tolerance or non-insulin-dependent (type 2) diabetes mellitus, but also in many non-obese, non-diabetic patients with essential hypertension and their currently normotensive, lean young offspring and in some other conditions known to promote hypertension. Insulin resistance impairs glucose tolerance, while insulin resistance and/or hyperinsulinemia promote dyslipidemia, body fat deposition and probably atherogenesis. Therefore, the common coexistence of a genetic predisposition for hypertension with insulin resistance helps to explain the frequent, although temporally often dissociated, occurrence of hypertension as well as dyslipidemia, obesity and type 2 diabetes in a given subject. Pathogenetic mechanisms: In the pathogenesis of hypertension, inappropriate vasoconstriction (due to dysbalance of vasoactive substances and/or raised cytosolic Ca2+) and/or a structural vasculopathy is a very important ultimate causative event. In the presumed mosaic of participating pressor mechanisms, distinct Na+ retention is almost obligatory with diabetes mellitus, while essential and particularly obesity-associated hypertension probably involves a tendency for sympathetic activation. Development of insulin resistance: Insulin resistance may develop as a consequence of an intracellular excess of Ca2+ or decrease in Mg2+, an impaired insulin-mediated rise in skeletal muscle blood flow, increased sympathetic activity or being overweight. Acute hyperinsulinemia on the one hand causes arterial vasodilation and on the other hand enhances renal sodium reabsorption and sympathetic activity. Chronically, hyperinsulinemia may promote cardiovascular muscle cell proliferation and atherogenesis, and it has been proposed that insulin resistance in certain transmembranous cation exchange systems may elevate cytosolic Ca2+. Nevertheless, whether insulin resistance and/or hyperinsulinemia itself contribute to the pathogenesis of hypertension is still unclear.

Objective To evaluate the effects of an acute glucose load on circulating atrial natriuretic factor (ANF) levels. Methods We investigated plasma ANF, glucose and insulin levels before and after intravenous administration of 50% D-glucose (300 mg/kg body weight) in healthy, normal volunteers. Results In study group A (n = 30) plasma ANF was found to be increased significantly 30min after the glucose load. In study group B (n = 55) the response of plasma ANF over time was assessed. A peak plasma ANF response was observed 10min after intravenous glucose loading; thereafter, plasma ANF levels returned gradually to basal levels at 50min after glucose injection. The latter produced in both study groups a similar acute hyperglycaemia, and in group B the expected concomitant hyperinsulinaemia. Conclusion These observations demonstrate that, in normal humans, acute marked hyperglycaemia is accompanied by a rapid increase in circulating ANF levels. In this metabolic interaction, ANF might counteract the renal sodium-retaining effect of acute hyperglycaemia and hyperinsulinaemia.

Vollständige Resektion von Kremasterfaszie und Muskel

Several drugs used for antihypertensive therapy may modify the lipoprotein metabolism. Thiazides in high dosage and loop diuretics can increase serum lowdensity lipoprotein (LDL) cholesterol and/or very-LDL cholesterol and the total cholesterol/high-density lipoprotein (HDL) cholesterol ratio, while HDL cholesterol is largely unchanged: triglycerides (Tg) are also often elevated. Premenopausal women may be protected from this side effect. Whether diuretic-induced dyslipidemia is dose-dependent and low thiazide doses (i.e., hydrochlorothiazide < 12.5 mg daily) are interacting less, awaits clarification. β-Blockers without intrinsic sympathomimetic activity increase serum triglycerides and tend to lower the potentially antiatherogenic HDL cholesterol. The diuretic-antihypertensive agent indapamide, given at a dose of 2.5 mg/day, is neutral with regard to serum lipoprotein and glucose metabolism. The potassium-sparing diuretic spironolactone, conventional sympatholytic agents, calcium-channel blockers, and probably the serotonin2-receptor antagonist ketanserin, exert no relevant effects on the lipoprotein profile. Angiotensin-converting enzyme inhibitors may slightly decrease serum triglycerides. α1-Receptor blockers slightly decrease LDL cholesterol and Tg and increase HDL cholesterol. Drug-induced development or aggravation of dyslipidemia represents a potentially adverse influence. In the hypertensive population, effective blood pressure control with traditional drug therapy based on thiazide-type diuretics in high dosage led to a distinct decrease in cerebrovascular morbidity and mortality, but failed to satisfactorily reduce coronary complications. The prognostic relevance of drug-induced changes in serum lipoproteins, carbohydrate metabolism and other risk factors or correlates awaits further clarification. In the meantime, it is of clinical interest that several of the generally available antihypertensive drugs seem to be metabolically “neutral” or sometimes even potentially beneficial with regard to the lipoprotein and glucose metabolism.

To evaluate the effects of long-term treatment antihypertensive with the dihydropyridine calcium antagonist amlodipine on insulin sensitivity, plasma insulin, and lipoprotein metabolism in obese hypertensive patients.

The haematological and immunological changes after splenectomy have been the subject of intensive research in recent years. As a consequence there has been a clear trend towards splenic salvage. Due to the availability of improved diagnostic investigations (sonography, CT) nonoperative treatment with close observation has become increasingly important in adults. 75 patients with documented splenic injury were prospectively evaluated over a 45-month period with an emphasis upon splenic preservation. Unstable patients had operative exploration with attempt at splenorrhaphy or partial splenic resection. Stable patients were managed nonoperatively, regardless of the degree of splenic injury as determined by sonography and/or computed tomography. In 38 patients the spleen was preserved by operative preservation in 20 and nonoperative treatment in 18 patients. 37 patients required splenectomy. Four patients were managed initially by nonoperative treatment, but required exploration for secondary rupture at 7, 7, 10 and 13 days. Delayed splenectomy was performed in three patients and one patient was treated by splenorrhaphy 7 days after admission. Bleeding complications occurred in one patient after splenorrhaphy (bleeding from the pancreatic tail) and the bleeding vessel could be transfixed during the same anaesthetic. Four patients required reexploration after splenectomy for hemorrhage (2) and evacuation of infected haematomas. The Injury Severity Score (ISS) of the splenectomy and splenic preservation group was determined. Splenectomised patients showed in the postoperative follow-up a significantly increased infection rate (40%, p less than 0.02) when compared to patients with splenic preservation (10%) or nonoperative treatment (11%), even when they were matched in respect of multiple trauma using the Injury Severity Score (ISS).

The haematological and immunological changes after splenectomy have been the subject of intensive research in recent years. As a consequence there has been a clear trend towards splenic salvage. Due to the availability of improved diagnostic investigations (sonography, CT) nonoperative treatment with close observation has become increasingly important in adults.75 patients with documented splenic injury were prospectively evaluated over a 45-month period with an emphasis upon splenic preservation. Unstable patients had operative exploration with attempt at splenorrhaphy or partial splenic resection. Stable patients were managed nonoperatively, regardless of the degree of splenic injury as determined by sonography and/or computed tomography. In 38 patients the spleen was preserved by operative preservation in 20 and nonoperative treatment in 18 patients. 37 patients required splenectomy. Four patients were managed initially by, nonoperative treatment, but required exploration for secondary rupture at 7, 7, 10 and 13 days. Delayed splenectomy was performed in three patients and one patient was treated by splenorrhaphy 7 days after admission. Bleeding complications occurred in one patient after splenorrhaphy (bleeding from the pancreatic tail) and the bleeding vessel could be transfixed during the same anaesthetic. Four patients required reexploration after splenectomy for hemorrhage (2) and evacuation of infected haematomas. The Injury Severity Score (ISS) of the splenectomy and splenic preservation group was determined. Splenectomised patients showed in the postoperative follow-up a significantly increased infection rate (40%, p < 0.02) when compared to patients with splenic preservation (10%) or nonoperative treatment (11%), even when they were matched in respect of multiple trauma using the Injury Severity Score (ISS).Splenic preservation should be the treatment of choice in splenic trauma in light of the early and late complications from splenectomy. Operative splenic preservation may be used even in patients with coagulation disorders. This policy may improve the immune status of these patients, and reduce the incidence of postoperative infectious complications. With experience. splenic preservation may become possible in 60-80% of patients with splenic injury.

Aufgrund der immunologischen Konsequenzen nach Splenektomie ist heute anerkanntermaBen die Milzerhaltung nach Trauma anzustreben. In unserer Behandlungstaktik werden die Milzverletzungen in 5 Grade eingeteilt, was das weitere Prozedere bestimmt Junge Patienten, die bei der Notfallaufnahme stabil sind, können konservativ behandelt werden, was bisher nur bei Kindern propagiert wurde. Wenn die Operation indiziert ist, soll die Milz sorgfältig vom Retroperitoneum freipräpariert werden und in die Abdominalwunde luxiert werden, um zusätzliche Verletzungen während der Notfalloperation zu verhindern. Der Hilus wird mit einer weichen Klemme abgeklemmt Verschiedene Methoden der Hämostase können verwendet werden (resorbierbare Kollagenplättchen, resorbierbare Hämostyptika, Infrarotkoagulation, resorbierbare Netze). Von spezifischem Interesse ist die Milzteilresektion, besonders bei Unterpolverletzungen mit Hilusbeteiligung. In diesen Fällen kann die Milz an den Aa. gastricae breves mit od. ohne Oberpolararterie erhalten werden. Heute dürften 60–80% der verletzten Milzen ohne Zusatzrisiko erhalten werden können.

Seventy-five adults with splenic injury were evaluated prospectively over 45 months to examine the possibility of splenic preservation. Haemodynamically unstable patients underwent surgery with the intent of splenic preservation. Stable patients received non-operative treatment regardless of the grade of splenic injury determined by ultrasonography and computed tomography. Thirty-seven patients required splenectomy and in 38 the organ was preserved (20 operative preservation, 18 non-operative treatment). Of 22 patients initially receiving non-operative treatment, there were four secondary haemorrhages after 7, 7, 10 and 13 days making surgery necessary. Three of these patients underwent splenectomy and in one the spleen was preserved by partial resection. After splenectomy four patients required reoperation because of rebleeding or for evacuation of a haematoma. Patients who had undergone splenectomy had a significantly increased infection rate (P < 0.005) compared with those in whom the spleen was preserved, even when patients were matched with respect to multiple trauma using the Injury Severity Score (P < 0.01).

The haematological and immunological consequences of splenectomy have been the subject of increasingly intensive studies over the last few years. As a result there has been a significant change in the management of splenic trauma with the emphasis on organ preservation which has been associated with a possible reduction in postoperative infectious complications. The safety of splenic preservation (splenorrhaphy) has been demonstrated. There has also been a change in the increased use of non-surgical (conservative) management of injuries in adults, a policy which previously was reserved for children. There is no difference in the postoperative bleeding rate between patients with splenectomies or patients with splenorrhaphies. Non-surgical treatment is in adults not yet established. In our department splenic preservation gets an increasing weight in our treatment policy, even in patients with multiple injuries. Our treatment policy initially classifies the splenic injury into one of five groups and this determines the subsequent operative procedures. The crucial part of the surgical technique in splenic preservation involves the immediate dissection and delivery of the spleen from its subdiaphragmatic position, thus avoiding iatrogenic injuries which can readily occur in the emergency situation. The hilus is then clamped with a non-crushing vascular or intestinal clamp, which avoids blood loss during the repair. The methods used for the repair depend on the grade of the injury. Means to prevent sutures cutting through the tissue (resorbable collagen platelets, resorbable gauze, teflon stripes) and a variety of methods to achieve haemostasis (infra red photocoagulation, haemostatic material and supportive mesh) are used.(ABSTRACT TRUNCATED AT 250 WORDS)

The haematological and immunological consequences of splenectomy have been the subject of increasingly intensive studies over the last few years. As a result there has been a significant change in the management of splenic trauma with the emphasis on organ preservation which has been associated with a possible reduction in postoperative infectious complications. The safety of splenic preservation (splenorrhaphy) has been demonstrated. There has also been a change in the increased use of non-surgical (conservative) management of injuries in adults, a policy which previously was reserved for children. There is no difference in the postoperative bleeding rate between patients with splenectomies or patients with splenorrhaphies. Non-surgical treatment is in adults not yet established. In our department splenic preservation gets an increasing weight in our treatment policy, even in patients with multiple injuries.Our treatment policy initially classifies the splenic injury into one of five groups and this determines the subsequent operative procedures. The crucial part of the surgical technique in splenic preservation involves the immediate dissection and delivery of the spleen from its subdiaphragmatic position, thus avoiding iatrogenic injuries which can readily occur in the emergency situation. The hilus is then clamped with a non-crushing vascular or intestinal clamp, which avoids blood loss during the repair. The methods used for the repair depend on the grade of the injury. Means to prevent sutures cutting through the tissue (resorbable collagen platelets, resorbable gauze, teflon stripes) and a variety of methods to achieve haemostasis (infra red photocoagulation, haemostatic material and supportive mesh) are used. The group requiring partial resection are of special interest and in particular those with lower pole injuries extending into the hilum. In these cases the spleen may be preserved on the short gastric vessels in combination or not with an upper pole artery. Splenectomy is generally reserved for severe grade V injuries.