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Biomedical subjects

O O Akinkugbe

Publications and source records attributed to O O Akinkugbe.

At least 19 recordsLinked to original sources
PubMed1996

The Nigerian hypertension programme.

The developing world is an economic entity arbitrarily characterised by a gross national product (GNP) of US $7910 per capita, and below. It is further categorised into low and middle-income economies with a GNP of US $635 as the dividing line. The bulk of low-income economies, often referred to as the Third World, are in sub-Saharan Africa, Asia and China, and are either impoverished by very limited resources both human and material, or with large populations. Nigeria is affected by both situations.

Adolescent↗
PubMed1995

The problems of peritoneal dialysis in the management of chronic uraemia in Nigeria.

The problems encountered in the use of peritoneal dialysis (PD) in the initial management of patients with chronic renal failure in Nigeria were highlighted, studying 23 patients (13 males and 10 females) aged between 15 and 68 years (mean age 36.4 years). Peritonitis was the most common complication, occurring in 16 (70%) of patients; effluent drainage obstruction in 11 patients (48%); haemorrhagic effluent in 10 patients (44%); fluid leak from catheter site infection in 7 patients (30%); accidental disconnection of line/catheter joint in 5 patients (22%); and catheter site infection in 2 patients (9%). A positive effluent culture was found in only 4 out of 18 cultured samples, with Klebsiella and Staphylococcus aureus being the organisms isolated. Dialysis was terminated in patients for the following reasons: financial constraints (8 patients), unresolving peritonitis (7 patients), drainage problems (3 patients), and clinical improvement (5 patients). The study concludes that PD in the management of chronic uraemia in developing countries, while producing clinical benefits in the majority of patients, is still not generally acceptable as a long-term treatment modality in view of the number of problems.

Adolescent↗
PubMed1995

Hemodialysis in Ibadan: a preliminary report on the first 100 dialysis.

The experience with the first 100 hemodialysis sessions at the Owena Dialysis Centre of the University College Hospital, Ibadan (UCH) is hereby presented. A total of 9 patients were dialysed during a 7-month period. The femoral vein was the most often utilised vascular access route (53 episodes in 5 patients) while a forearm fistula was functional in only one patient. The dialyzer and blood lines were reused for each patient for a maximum of 5 times. Technical problems encountered were: power failure (12 episodes), ruptured dialyzer (3), water-pipe leakage (4) machine breakdown (2) and heparin pump failure (2). Clinical problems were: failure of fistula access (2), thrombosed femoral veins (2), clotted cannula (3), low arterial pressure (20); nausea and vomiting (2), pruritus (46), muscle cramps (5), Sepsis (8) and hypotension (2). Six patients discontinued treatment after less than 10 dialyses due to financial constraints. The high cost of hemodialysis remains the major setback to its use in the treatment of end-stage renal disease in developing countries; there is the need for acceptable improvisation to reduce the overhead cost so as to make it available to most patients requiring dialysis.

Adolescent↗
PubMed1994

Glomerular function in sickle cell disease patients during crisis.

An 8 month prospective study was carried out in 20 adult sickle cell disease (SCD) patients 16 sickle cell anaemia (Hbss) and 4 sickle cell Hbc disease (Hbsc); who had vaso-occlusive crises within the study period to determine the extent of the effect of sickle cell crisis on glomerular function in SCD patients during crisis. The male: female ratio was 1:57 and their mean age was 21.1 +/- 7.9 years. Creatinine clearance (CCr), as an index of glomerular function, was determined at the pre-crisis, crisis, 2 and 4 weeks post-crisis and at the end of the study period. The mean values of their CCr dropped from 113.37 +/- 33.80mls/min at pre-crisis stage to 96.39 +/- 30.13mls/min during crisis (p < 0.001) indicating glomerular dysfunction. It improved significantly to 107.75 +/- 30.20mls/min at 4 weeks post-crisis (p < 0.001). There was no significant differences in the mean values of CCr at the end of the study (116.20 +/- 31.43mls/min) compared to the pre-crisis stage (p > 0.05). It is concluded that glomerular dysfunction in SCD patients during crisis is potentially reversible.

Acute Disease↗
PubMed1992

The causes and course of acute tubular necrosis in Nigerians.

To characterize the precipitating factors and course of acute tubular necrosis (ATN) in Nigerians, we studied the clinical course of ATN in 40 consecutive patients (22 male) seen in the Renal Unit of the University College Hospital, Ibadan, between June 1986 and July 1989. Nephrotoxicity resulting from the use of traditional herbal remedies (15 patients, (37.5%)) and septicaemia (7 patients (17.5%)) were the most commonly identified precipitating factors. The mean duration of the oliguric phase was 9 +/- 3.8 days, while that of the diuretic phase was 17.5 +/- 7.1 days. Majority (26 patients (65%)) were anuric at presentation. The mean urine output during the oliguric phase was 16.7 +/- 36.5 ml, whereas it was 3622 +/- 2159 ml during the diuretic phase. Transient hypertension occurred in 8.5% of cases. A total of 10 patients (25%) died. Six deaths occurred in non-dialysed patients while 5 were associated with encephalopathy. Of the 15 patients in whom ATN resulted from the use of herbal remedies, only 1 died. Nephrotoxicity from traditional herbal remedies is an important cause of ATN in Ibadan. The exact pathogenesis is unclear and warrants further investigation.

Adolescent↗
PubMed1991

Intracellular sodium and blood pressure in Nigerians.

In examining the relationship between erythrocyte sodium, potassium, and blood pressure in Nigerians, we measured the erythrocyte sodium and potassium in 25 hypertensive and 34 normotensive subjects. Of the normotensive subjects, 15 had positive family histories of hypertension and 19 did not. The hypertensive subjects were older (50.1 +/- 1.7 years) than the normotensive subjects (25.4 +/- 0.7 years) (mean +/- SEM; P < .001). The mean arterial pressure in hypertensive subjects was higher (108.8 +/- 2.3 mm Hg), as expected, compared with normotensive subjects (86.98 +/- 1.62 mm Hg) (P < .001). The mean duration of hypertension in hypertensive subjects was 5.60 +/- 0.75 years. Erythrocyte sodium was higher in hypertensive subjects (9.57 +/- 0.19 mmol/L) compared with normotensive subjects (7.96 +/- 0.19 mmol/L) (P < .001). Among normotensive subjects, erythrocyte sodium was higher in those with a positive family history of hypertension (8.59 +/- 0.31 mmol/L) compared to those without such a history (7.47 +/- 0.18 mmol/L), and this was also statistically significant (P = .027). Erythrocyte potassium levels were similar in the hypertensive subjects (83.51 +/- 0.71 mmol/L), in normotensive subjects (81.86 +/- 0.81 mmol/L), and in those without a family history of hypertension (80.20 +/- 0.51 mmol/L) (P = .675). We observed a significant (P < .001) positive correlation between erythrocyte sodium and systolic (r = 0.99) and diastolic (r = 0.39) blood pressures. Our findings support the hypothesis that erythrocyte sodium is closely related to blood pressure and its nonracial genetic determinants.

Adult↗
PubMed1991

Heart disease in blacks of Africa and the Caribbean.

Cardiovascular pathology in African and Afro-Caribbean blacks features three major conditions: hypertension, rheumatic heart disease, and the cardiomyopathies. Ischemic heart disease is as yet distinctly uncommon in these societies but the adoption of Western lifestyle and its inevitable risk factors for atherosclerosis makes it likely that coronary artery disease will emerge ultimately. Hypertension poses special problems in these regions--its prevalence rate is high both in rural and urban settings, its consequences devastating in its severity of target organ involvement, and its management strategy complicated by the high cost of drugs, poor patient compliance, and the lack of clinical resources for effective monitoring of detected and referred cases. Rheumatic heart disease remains an eminently preventable condition. The ultimate strategy lies in improving the quality of life in these communities through adequate housing, sanitation, and health education, and integrating primary prophylaxis into national health care programs to forestall the development of rheumatic fever. Cardiomyopathy poses the greatest challenge as its etiology remains elusive. Its dilated form has been linked with Toxoplasma and with Coxsackie B viruses, but hard evidence of a cause-effect relationship is still lacking.

Africa↗
PubMed1990

Epidemiology of cardiovascular disease in developing countries.

As infection and malnutrition are steadily overcome in the developing world, cardiovascular disease loom large in the profile of morbidity and mortality in these societies. Hypertension, rheumatic heart disease and the cardiomyopathies are already taking their toll and atherosclerosis is certain to pose public health problems soon unless steps are taken now, through attention to known risk factors, to pre-empt or at least minimize its consequences. There are populations in developing countries among whom blood pressure does not appear to rise with age and in whom the prevalence of hypertension is very low. Studies of these communities and of migrant groups indicate that salt has an important effect on blood pressure. In spite of these observations, however, it is well known that black communities tend, on the whole, to show a higher prevalence of hypertension and more severe target-organ damage than white communities. Other distinguishing features are lower cholesterol, triglyceride and low-density lipoprotein fractions and a delayed response to a sodium load in black populations. Economic constraints limit the effective application of stepped-care therapy in the management of moderate to severe hypertension. Beta-blockers and angiotensin converting enzyme (ACE) inhibitors are not so effective in black communities unless combined with diuretics.

Antihypertensive Agents↗
PubMed1989

Current aspects of high blood pressure research in Africa.

Hypertension in Africa represents a challenge and an opportunity. As the two epidemics of infection and malnutrition are increasingly brought under control, increasing morbidity and mortality from hypertension have been documented and offer a challenge for prevention. Heterogeneity within and between African populations offers opportunities for detecting clues to the etiology and pathogenesis of hypertension. For example, populations in urban areas have already shown a greater prevalence of obesity, hypertension, and hypertensive heart and kidney disease than those in rural areas. The generally better lipid profiles in African blacks compared with whites is associated not only with low rates of coronary heart disease, but also with low prevalences of hypertensive retinopathy, despite substantial prevalences of hypertension in African blacks. Areas of Africa with a natural abundance of salt, such as Gambia and Senegal, tend to have indigenes with less tendency to retain a salt load than those from areas that are traditionally salt poor.

Africa↗
PubMed1988

Prolonged prednisolone therapy in adult nephrotic syndrome: a preliminary study.

Twenty-five adult Nigerian patients suffering from the nephrotic syndrome with normocomplementaemic mesangiocapillary glomerulonephritis were studied. Twelve of these were treated with prednisolone at a dose of 1.5 mg/kg body weight/day, with maximum dose of 90 mg/day initially for 2 weeks. Thereafter, a quarter of the daily dose was given on alternate days for a period varying from 6 to 12 months. The 13 others were similarly followed up on a dietary and diuretic regime alone. Oedema disappeared completely in all the steroid group except one, whilst it persisted in five of the controls. Proteinuria persisted in all the controls but remitted in five of the test patients. Renal function deteriorated with rising plasma creatinine in five of the controls, in contrast with one of the test patients. The beneficial effect of prednisolone observed here calls for further long-term studies.

Adolescent↗
PubMed1978

Nephrology in the tropical setting.

The pattern of renal disease and its basic principles of management are essentially the same in the tropics as in the temperate environment. Glomerulonephritis and pyelonephritis with concomitant hypertension account for most cases of renal failure. Malaria is now well recognised as a cause of the nephrotic syndrome. Economic and manpower factors dictate a conservative approach to therapy. Maintenance haemodialysis and renal transplantation are not realistic in the present context, having regard to the order of priorities in health care delivery.

Humans↗
PubMed1977

Biracial study of arterial pressures in the first and second decades of life.

The blood pressures of young Black and White American schoolchildren were measured and compared with those of Nigerian children of similar ages. Both diastolic and systolic pressures were consistently higher in the Nigerian children than in the Americans, both Black and White. The White children had the lowest pressures at each age. The mean weights and heights at each age were not significantly different in the three groups. Although the blood pressure of African children was higher than that of Black Americans, mean adult pressures are known to be similar in both groups. This suggests that the difference in childhood pressures must be due more to environmental factors than to genetic ones.

Adolescent↗