Measuring partial body potassium in the legs of patients with spinal cord injury: a new approach.

Patients with acute spinal cord injury (SCI) with paralysis experience rapid and marked muscle atrophy below the level of the lesion. Muscle is lost above the lesion due to enforced bed rest associated with immobilization. Presently, there is no viable method to quantify muscle loss between the time of injury to the initiation of rehabilitation and remobilization. Furthermore, to assess the efficacy of any physical or pharmacological intervention necessitates the ability to accurately determine the impact of these treatments on muscle mass and function. Our results are presented from measurements of regional potassium (K) in the legs of persons with chronic SCI. The intracellular body K, comprising approximately 97% of the total body K, is indicative of the metabolically active cell mass, of which over 50% is located in the skeletal muscle (SM). To assess regional variations in SM mass in the legs, a partial body K (PBK) system designed for this purpose was placed on a potentially mobile cart. The SM mass measured by PBK in an able-bodied control cohort (n = 17) and in patients with chronic SCI (n = 21) was 17.6 +/- 0.86 and 11.0 +/- 0.65 kg, respectively, a difference of approximately 37.5%. However, the difference in the lean tissue mass of the legs obtained by dual-energy absorptiometry (DXA) in the same cohorts was 20.5 +/- 0.86 and 15.5 +/- 0.88 kg, respectively, or a difference of approximately 24.4%. PBK offers a novel approach to obtain regional K measurements in the legs, thus allowing the potential for early and serial assessment of muscle loss in SCI subjects during the acute and subacute periods following paralysis. The basic characteristics and performance of our PBK system and our calibration procedure are described in this preliminary report.

Chronic disease control and compliance--the HOPE worldwide Jamaica experience

HOPE worldwide Jamaica has provided mobile curative and preventative services to fourteen rural government clinics since 1994. The patient records of 1,091 chronic disease patients, aged >30 years between January and December 1999 were reviewed. They were all above 30 years of age with an average age of 64 years; 81were female and 60were hypertensive, 16diabetic and 24had both diabetes and hypertension. There were 2,390 visits for hypertension, with an average of 2 visits per patient. Thirty-four per cent of patients had BP of < or = 140/90 mmHg while 43had BP <160/ 95 mmHg. Compliance was defined as daily consistency in taking prescribed medication. Forty-four per cent of hypertensives were non-compliant at the time of their visit. Anti-hypertensive treatment included thiazide diuretics (65), reserpine (50), ACE inhibitors (30) and alpha-methyldopa (5). There were 1,129 visits for diabetes, with an average of 2 visits per patient. Twenty-four per cent of diabetic patients were controlled to fasting blood glucose FBG levels of <6.7 mmol/l and 38controlled to (FBG) levels <8 mmol/l. Thirty per cent of diabetics were non-compliant at the time of their visit. The most frequently used oral hypoglycaemic agents were metformin (78), glyburide (43) and chlorpropamide (30). Fourteen per cent of diabetics were on treatment with insulin 70/30 (12) and lente insulin (2). Electrocardiograms (ECG) were done on 24(n=267) of patients in the previous two years. Thirty-six per cent had evidence of left ventricular hypertrophy and 15had evidence of ischaemic heart disease. The level of blood pressure and blood glucose control is inadequate, despitethe provision of regular monitoring, surveillance and improved access to pharmaceuticals. It is perceived that poor socioeconomic conditions, lack of education, cultural beliefs, in addition to other factors, continue to militate against improved compliance and control.

Chronic disease control and compliance--the HOPE worldwide Jamaica experience.

HOPE worldwide Jamaica has provided mobile curative and preventative services to fourteen rural government clinics since 1994. The patient records of 1,091 chronic disease patients, aged >30 years between January and December 1999 were reviewed. They were all above 30 years of age with an average age of 64 years; 81% were female and 60% were hypertensive, 16% diabetic and 24% had both diabetes and hypertension. There were 2,390 visits for hypertension, with an average of 2 visits per patient. Thirty-four per cent of patients had BP of < or = 140/90 mmHg while 43% had BP <160/ 95 mmHg. Compliance was defined as daily consistency in taking prescribed medication. Forty-four per cent of hypertensives were non-compliant at the time of their visit. Anti-hypertensive treatment included thiazide diuretics (65%), reserpine (50%), ACE inhibitors (30%) and alpha-methyldopa (5%). There were 1,129 visits for diabetes, with an average of 2 visits per patient. Twenty-four per cent of diabetic patients were controlled to fasting blood glucose FBG levels of <6.7 mmol/l and 38% controlled to (FBG) levels <8 mmol/l. Thirty per cent of diabetics were non-compliant at the time of their visit. The most frequently used oral hypoglycaemic agents were metformin (78%), glyburide (43%) and chlorpropamide (30%). Fourteen per cent of diabetics were on treatment with insulin 70/30 (12%) and lente insulin (2%). Electrocardiograms (ECG) were done on 24% (n=267) of patients in the previous two years. Thirty-six per cent had evidence of left ventricular hypertrophy and 15% had evidence of ischaemic heart disease. The level of blood pressure and blood glucose control is inadequate, despitethe provision of regular monitoring, surveillance and improved access to pharmaceuticals. It is perceived that poor socioeconomic conditions, lack of education, cultural beliefs, in addition to other factors, continue to militate against improved compliance and control.

Chronic diseases management in the Jamaican setting: HOPE worldwide Jamaica's experience.

The prevalence of hypertension and diabetes in Jamaica is very high. Hypertension is present in 3 out of 10 Jamaicans over the age of 30 years while the prevalence of diabetes mellitus varies between 13% and 18% for Jamaicans over 15 years. HOPE worldwide Jamaica is a 7-year-old private voluntary organization that collaborates with the government of Jamaica to provide a mobile medical service to poor rural communities. The records between January 1999 and December 1999 of 1091 chronic disease patients aged > 30 years were reviewed. The average recorded age of the patients was 64 years and 82% among them were females. 60% had hypertension, 16% had diabetes and 24% had both diabetes and hypertension. There were 2390 visits for hypertension, with an average of 2 visits per patient. 34% of patients had a blood pressure of < or = 140/90 mmHg while 43% had a blood pressure < 160/95 mmHg. Compliance was defined as daily consistency in taking prescribed medication. 44% of the patients with hypertension were non-compliant at the time of their visit. Antihypertensive treatment included thiazide diuretics (65%), reserpine (50%), angiotensin converting enzyme (ACE) inhibitors (30%) and alpha-methyldopa (5%). There were 1122 visits for diabetes, with an average of 2 visits per patient. Among the diabetic patients 23% were controlled to a fasting blood glucose (FBG) level of less than 6.7 mmol/l and 38% to below 8 mmol/l. 30% of the diabetic patients were non-compliant at the time of their visit. The most frequently used oral hypoglycaemic agents were metformin (78%), glyburide (43%) and chlorpropamide (30%). 14% of the diabetic patients were on treatment with insulin: insulin 70/30 (12%) and lente insulin (2%). Electrocardiograms (ECGs) were done in the previous two years on 267 patients (29%), among whom 38% had evidence of left ventricular hypertrophy and 16% of ischaemic heart disease. The level of blood pressure and blood glucose control was inadequate despite the provision of regular monitoring, surveillance and improved access to medication. It is perceived that poor socioeconomic conditions, lack of education, cultural beliefs and some other factors continue to militate against improved compliance and control. HOPE worldwide Jamaica is currently implementing programs to improve patient education, especially in compliance, to provide access to more effective medication with convenient once-daily dosage regimens, and to develop support groups among chronic disease patients in order to improve compliance and control.