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Dka And Heart Failure

Diabetic Ketoacidosis: Evaluation And Treatment

Diabetic Ketoacidosis: Evaluation And Treatment

Diabetic ketoacidosis is characterized by a serum glucose level greater than 250 mg per dL, a pH less than 7.3, a serum bicarbonate level less than 18 mEq per L, an elevated serum ketone level, and dehydration. Insulin deficiency is the main precipitating factor. Diabetic ketoacidosis can occur in persons of all ages, with 14 percent of cases occurring in persons older than 70 years, 23 percent in persons 51 to 70 years of age, 27 percent in persons 30 to 50 years of age, and 36 percent in persons younger than 30 years. The case fatality rate is 1 to 5 percent. About one-third of all cases are in persons without a history of diabetes mellitus. Common symptoms include polyuria with polydipsia (98 percent), weight loss (81 percent), fatigue (62 percent), dyspnea (57 percent), vomiting (46 percent), preceding febrile illness (40 percent), abdominal pain (32 percent), and polyphagia (23 percent). Measurement of A1C, blood urea nitrogen, creatinine, serum glucose, electrolytes, pH, and serum ketones; complete blood count; urinalysis; electrocardiography; and calculation of anion gap and osmolar gap can differentiate diabetic ketoacidosis from hyperosmolar hyperglycemic state, gastroenteritis, starvation ketosis, and other metabolic syndromes, and can assist in diagnosing comorbid conditions. Appropriate treatment includes administering intravenous fluids and insulin, and monitoring glucose and electrolyte levels. Cerebral edema is a rare but severe complication that occurs predominantly in children. Physicians should recognize the signs of diabetic ketoacidosis for prompt diagnosis, and identify early symptoms to prevent it. Patient education should include information on how to adjust insulin during times of illness and how to monitor glucose and ketone levels, as well as i Continue reading >>

Cardiac Contractility During Severe Ketoacidosis

Cardiac Contractility During Severe Ketoacidosis

To the Editor: Experimental studies suggest that metabolic acidosis impairs the contractile function of the heart, but whether this occurs in humans is uncertain.1,2 During a six-month period, we measured fractional shortening of the left ventricle during systole in 10 consecutive patients (6 women and 4 men; mean [±SD] age, 42±18 years), 7 of whom were admitted for treatment of diabetic ketoacidosis and 3 of whom were admitted for alcoholic ketoacidosis. We focused on these conditions because the ketoacidosis associated with them, although frequently severe, is usually rapidly reversible. Treatment included intravenous rehydration (mean volume of fluid infused, 3.1±1.6 liters), insulin administration in the patients with diabetes, and antibiotic therapy as needed (in two patients). No alkali therapy was administered. Fractional shortening of the left ventricle was measured by transthoracic echocardiography (with a 2.5- or 3.5-MHz probe, Sonos 100, Hewlett–Packard, Orsay, France) before treatment and 24 to 36 hours later, after correction of the ketoacidosis. No patient had a systolic blood pressure of less than 90 mm Hg on admission or during follow-up, and none received plasma expanders or vasopressors. Echocardiography revealed no regional wall-motion abnormalities, and the fractional shortening of the left ventricle was normal at both times in all patients (Table 1Table 1), including three patients who had extremely severe acidosis (pH, 6.90, 6.76, and 6.75). Although cardiac contractility is a multifactorial function, we think that it can be reliably evaluated by measurements of left ventricular fractional shortening. For this reason, it seems unlikely that ketoacidosis had a clinically important effect in our patients. Our findings do not support the notion t Continue reading >>

Lessons From Euroheart Failure Survey

Lessons From Euroheart Failure Survey

In some instances, acute myocardial infarction (AMI) may be the precipitating factor both for acute heart failure (AHF) and for diabetic ketoacidosis (DKA), with the consequence that the two disorders may occasionally co-exist in the same individual.1,2 When de novo AHF has cardiogenic pulmonary oedema as its presenting feature, its co-existence with DKA can pose unique diagnostic and therapeutic challenges. On the one hand, if the onset of AMI has escaped detection, due to a pain-free presentation, it may be difficult to differentiate between AMI-related cardiogenic pulmonary oedema and DKA-related adult respiratory distress syndrome, a diagnostic dilemna compounded by the fact that stigmata such as ST-segment elevation and a rise in cardiac troponin levels may be a feature, not only of AMI, but also of DKA per se.3 In the context of undisputable de novo AHF, the therapeutic challenge is one of managing cardiogenic pulmonary oedema and its aftermath, chronic heart failure, with minimal use of diuretics so as to reduce the risk of activation of the renin–angiotensin–aldosterone system (RAAS),4 with its attendant adverse sequelae.5 Although participants in the EuroHeart Failure study managed cardiogenic pulmonary oedema with intravenous diuretics and with intravenous nitrates, in 94 and 70.6% of instances, respectively,6 implying co-prescription of the two agents in some of those instances, the ideal strategy may well have been the sole use of intravenous nitrates7 given the fact that patients with new-onset cardiogenic pulmonary oedema are unlikely to have a net increase in blood volume, the latter eventuality rendered even less likely by the co-existence of DKA. Following the resolution of pulmonary oedema, the subsequent management of these patients should, theref Continue reading >>

Diabetic Ketoacidosis

Diabetic Ketoacidosis

What is Diabetic Ketoacidosis Diabetic ketoacidosis (DKA) is the hallmark of type 1 (insulin-dependent) diabetes mellitus. DKA is an emergency condition caused by a disturbance in your body’s metabolism. Extremely high blood glucose levels, along with a severe lack of insulin, result in the breakdown of body fat for energy and an accumulation of ketones in the blood and urine. Statistics on Diabetic Ketoacidosis Diabetic ketoacidosis can occur in between 16%-80% of children presenting with newly diagnosed diabetes. It remains the most common cause of death for young type 1 diabetes sufferers. Before the discovery of insulin, mortality rates were up to 100%. Today, the mortality has fallen to around 2% due to early identification and treatment. Death is usually caused by cerebral oedema (swelling of the brain). DKA is most common in type 1 diabetes sufferers but may also occur in those with type 2 diabetes mellitus. However, the latter group usually has at least some functioning insulin so suffer from another disorder called hyperosmolar non-ketotic coma (HONK). DKA tends to occur in individuals younger than 19 years, the more brittle of type 1 diabetic patients. However, DKA can affect diabetic patients of any age or sex. Risk Factors for Diabetic Ketoacidosis People with diabetes lack sufficient insulin, a hormone the body uses to metabolise glucose (a simple sugar) for energy. Therefore in diabetic patients glucose is not available as a fuel, so the body turns to fat stores for energy. However when fats are broken down they produce byproducts called ketones which build up in the blood and can be damaging to the body. In particular, accumulated ketones can “spill” over into the urine and make the blood become more acidic than body tissues (ketoacidosis). Blood gl Continue reading >>

Diabetic Ketoacidosis

Diabetic Ketoacidosis

Diabetic ketoacidosis (DKA) is a potentially life-threatening complication of diabetes mellitus.[1] Signs and symptoms may include vomiting, abdominal pain, deep gasping breathing, increased urination, weakness, confusion, and occasionally loss of consciousness.[1] A person's breath may develop a specific smell.[1] Onset of symptoms is usually rapid.[1] In some cases people may not realize they previously had diabetes.[1] DKA happens most often in those with type 1 diabetes, but can also occur in those with other types of diabetes under certain circumstances.[1] Triggers may include infection, not taking insulin correctly, stroke, and certain medications such as steroids.[1] DKA results from a shortage of insulin; in response the body switches to burning fatty acids which produces acidic ketone bodies.[3] DKA is typically diagnosed when testing finds high blood sugar, low blood pH, and ketoacids in either the blood or urine.[1] The primary treatment of DKA is with intravenous fluids and insulin.[1] Depending on the severity, insulin may be given intravenously or by injection under the skin.[3] Usually potassium is also needed to prevent the development of low blood potassium.[1] Throughout treatment blood sugar and potassium levels should be regularly checked.[1] Antibiotics may be required in those with an underlying infection.[6] In those with severely low blood pH, sodium bicarbonate may be given; however, its use is of unclear benefit and typically not recommended.[1][6] Rates of DKA vary around the world.[5] In the United Kingdom, about 4% of people with type 1 diabetes develop DKA each year, while in Malaysia the condition affects about 25% a year.[1][5] DKA was first described in 1886 and, until the introduction of insulin therapy in the 1920s, it was almost univ Continue reading >>

Diabetic Ketoacidosis (dka) - Topic Overview

Diabetic Ketoacidosis (dka) - Topic Overview

Diabetic ketoacidosis (DKA) is a life-threatening condition that develops when cells in the body are unable to get the sugar (glucose) they need for energy because there is not enough insulin. When the sugar cannot get into the cells, it stays in the blood. The kidneys filter some of the sugar from the blood and remove it from the body through urine. Because the cells cannot receive sugar for energy, the body begins to break down fat and muscle for energy. When this happens, ketones, or fatty acids, are produced and enter the bloodstream, causing the chemical imbalance (metabolic acidosis) called diabetic ketoacidosis. Ketoacidosis can be caused by not getting enough insulin, having a severe infection or other illness, becoming severely dehydrated, or some combination of these things. It can occur in people who have little or no insulin in their bodies (mostly people with type 1 diabetes but it can happen with type 2 diabetes, especially children) when their blood sugar levels are high. Your blood sugar may be quite high before you notice symptoms, which include: Flushed, hot, dry skin. Feeling thirsty and urinating a lot. Drowsiness or difficulty waking up. Young children may lack interest in their normal activities. Rapid, deep breathing. A strong, fruity breath odor. Loss of appetite, belly pain, and vomiting. Confusion. Laboratory tests, including blood and urine tests, are used to confirm a diagnosis of diabetic ketoacidosis. Tests for ketones are available for home use. Keep some test strips nearby in case your blood sugar level becomes high. When ketoacidosis is severe, it must be treated in the hospital, often in an intensive care unit. Treatment involves giving insulin and fluids through your vein and closely watching certain chemicals in your blood (electrolyt Continue reading >>

Respiratory Failure In Diabetic Ketoacidosis

Respiratory Failure In Diabetic Ketoacidosis

Go to: INTRODUCTION Ketoacidosis in subjects with type 1, or less frequently, type 2 diabetes mellitus remains a potentially life-threatening diabetic manifestation. The subject has justifiably attracted attention in the literature. Sequential reviews[1-9] have documented important changes in the clinical concepts that are related to diabetic ketoacidosis (DKA) and its management. A large number of case series of DKA have addressed various aspects of its clinical presentation and management. For this review, we selected representative studies focused on management, outcome, age differences, gender differences, associated morbid conditions, ethnicity and prominent clinical and laboratory features[10-35]. In recognition of the complexity of treatment, the recommendation to provide this care in intensive care units was made more than 50 years ago[36]. Severe DKA is treated in intensive care units today[31]. Evidence-based guidelines for the diagnosis and management of DKA have been published and frequently revised in North America[37,38] and Europe[39]. Losses of fluids and electrolytes, which are important causes of morbidity and mortality in DKA, vary greatly between patients. Quantitative methods estimating individual losses and guiding their replacement have also been reported[40,41]. The outcomes of DKA have improved with new methods of insulin administration[42] and adherence to guidelines[43-46]. The aim of treatment is to minimize mortality and prevent sequelae. One study documented that the target of zero mortality is feasible[42]. However, mortality from DKA, although reduced progressively in the early decades after the employment of insulin treatment[1], remains high. Up to fifty plus years ago, mortality from DKA was between 3% and 10%[1,16]. A recent review re Continue reading >>

Practical Management Of Diabetes In Critically Ill Patients

Practical Management Of Diabetes In Critically Ill Patients

According to the American Diabetes Association and the World Health Organization, the diagnosis of diabetes requires one of the following: (1) random plasma glucose ⩾ 200 mg% with symptoms of diabetes (polyuria, polydipsia, etc.), (2) fasting plasma glucose ⩾ 126 mg% (confirmed on a second occasion), or (3) plasma glucose ⩾ 200 mg% 2 h after an oral glucose load (2). These criteria were developed for outpatients. Diagnostic criteria for diabetes in the hospitalized patient are not available; however, hyperglycemia (random plasma glucose > 180–200 mg%) warrants treatment. Measurement of the hemoglobin A1c, a reflection of glycemia for the prior 2–3 mo, is useful in determining the chronicity of hyperglycemia and, if elevated, indicates the presence of hyperglycemia prior to hospital admission. The nomenclature for diabetes classification is divided into type 1 diabetes (replaces insulin-dependent diabetes mellitus or IDDM), type 2 diabetes (replaces non-insulin-dependent diabetes mellitus or NIDDM), and other forms such as gestational diabetes or forms of diabetes secondary to other diseases (2). Accurate classification of diabetes in a patient assists in glycemic management in the hospital setting and alerts the physician to associated conditions. Type 1 diabetes refers to hyperglycemia that results primarily from insulin deficiency. Although the prototypical patient is a young child or adolescent, the onset of type 1 diabetes may occur over the age of 20 yr in more than one-third of patients. Because type 1 diabetes is an autoimmune disorder, autoimmune thyroid disease (hyperthyroidism or hypothyroidism) and adrenal insufficiency should be considered in patients with unexplained hypotension, persistent tachycardia, or prolonged respiratory failure. Type 2 dia Continue reading >>

Diabetic Ketoacidosis

Diabetic Ketoacidosis

Patient professional reference Professional Reference articles are written by UK doctors and are based on research evidence, UK and European Guidelines. They are designed for health professionals to use. You may find the Pre-diabetes (Impaired Glucose Tolerance) article more useful, or one of our other health articles. See also the separate Childhood Ketoacidosis article. Diabetic ketoacidosis (DKA) is a medical emergency with a significant morbidity and mortality. It should be diagnosed promptly and managed intensively. DKA is characterised by hyperglycaemia, acidosis and ketonaemia:[1] Ketonaemia (3 mmol/L and over), or significant ketonuria (more than 2+ on standard urine sticks). Blood glucose over 11 mmol/L or known diabetes mellitus (the degree of hyperglycaemia is not a reliable indicator of DKA and the blood glucose may rarely be normal or only slightly elevated in DKA). Bicarbonate below 15 mmol/L and/or venous pH less than 7.3. However, hyperglycaemia may not always be present and low blood ketone levels (<3 mmol/L) do not always exclude DKA.[2] Epidemiology DKA is normally seen in people with type 1 diabetes. Data from the UK National Diabetes Audit show a crude one-year incidence of 3.6% among people with type 1 diabetes. In the UK nearly 4% of people with type 1 diabetes experience DKA each year. About 6% of cases of DKA occur in adults newly presenting with type 1 diabetes. About 8% of episodes occur in hospital patients who did not primarily present with DKA.[2] However, DKA may also occur in people with type 2 diabetes, although people with type 2 diabetes are much more likely to have a hyperosmolar hyperglycaemic state. Ketosis-prone type 2 diabetes tends to be more common in older, overweight, non-white people with type 2 diabetes, and DKA may be their Continue reading >>

Diabetes And Heart Disease

Diabetes And Heart Disease

Tweet Heart disease is a complication that may affect people with diabetes if their condition is not managed well for a prolonged period of time.. Coronary heart disease is recognized to be the cause of death for 80% of people with diabetes, however, the NHS states that heart attacks are largely preventable. [48] How are heart disease and diabetes linked? People suffering from type 1 and type 2 diabetes are more likely to be at risk from heart attacks, strokes and high blood pressure. Vascular problems, such as poor circulation to the legs and feet, are also more likely to affect diabetes patients. Like diabetes itself, the symptoms of cardiovascular disease may go undetected for years. A Diabetes UK report from 2007 estimates that the risk of cardiovascular disease in people with diabetes is: [1] 5 times higher in middle aged men 8 times higher in women with diabetes. More than half of type 2 diabetes patients will exhibit signs of cardiovascular disease complications at diagnosis. Who does heart disease affect? Many people think that heart disease only affects the middle-aged and elderly. However, serious cardiovascular disease may develop in diabetics before the age of 30. Both type 1 and type 2 diabetics are at greater risk of developing heart disease. What is the cause of heart disease amongst diabetics? Hyperglycemia, which characterises diabetes, in combination with free fatty acids in the blood can change the makeup of blood vessels, and this can lead to cardiovascular disease. The lining of the blood vessels may become thicker, and this in turn can impair blood flow. Heart problems and the possibility of stroke can occur. What symptoms can identify heart disease? The following are common symptoms of heart disease, although this may vary from individual to indiv Continue reading >>

The Silent Heart Attacks That Can Strike Diabetics Without Warning

The Silent Heart Attacks That Can Strike Diabetics Without Warning

Property consultant Michael Green was adamant that his type 2 diabetes was nothing to worry about. 'It's the non-serious type,' he'd say dismissively. Michael's laid-back attitude is in some ways understandable. The father-of-one had never suffered any obvious ill-effects from the condition he'd lived with for 28 years, and he'd been diagnosed not as a result of any troubling symptoms, but by chance following a routine blood test. Compared to a family friend who had type 1 diabetes, he was lucky, he insisted. At least he didn't have to monitor his blood sugar levels every few hours, and inject insulin. Then one night, two years ago, he went to sleep and never woke up. At just 53, he'd suffered a 'silent heart attack' - a little-known complication of diabetes. A silent attack is almost symptomless and occurs without any of the chest pain normally associated with a heart attack. Yet they can be just as dangerous - if not more so - as a normal heart attack. They're also surprisingly common. It is estimated that around a quarter of the 175,000 heart attacks in the UK each year are the silent type - and people with diabetes are at greatest risk. This is because the nerve damage linked to their condition can prevent warning signals being transmitted in the usual way. This, in turn, can lead to a delay in seeking treatment and result in damage to the blood vessels and heart muscle that make the heart attack more lethal. Heart attacks occur when there is a blockage in the artery supplying blood to the heart. Normally, this is as a result of a fatty plaque breaking off from the artery wall, triggering a blood clot. When the blood supply to the heart is reduced, the body produces chemicals that affect nerves and trigger pain. Often, people describe the pain of a heart attack as a Continue reading >>

Severe Diabetic Ketoacidosis Associated With Acute Myocardial Necrosis

Severe Diabetic Ketoacidosis Associated With Acute Myocardial Necrosis

We describe a case of a 28-year-old woman who was admitted to our hospital with severe diabetic ketoacidosis. She was known to have had type 1 diabetes for 10 years. During the previous 2 days, she had gone to a party, drank a considerable amount of alcohol, and did not administer her regular dose of insulin. On admission, she was semicomatose and tachypnoic, her blood pressure was 90/70 mmHg, and her heart rate 80 bpm. Laboratory tests showed severe metabolic acidosis (pH 6.92, bicarbonate 2.2 mmol/l, pCO2 1.49 kPa), very high blood glucose (75 mmol/l), hyponatremia (104.3 mmol/l), hypochloremia (70 mmol/l), severe hyperkalemia (8.5 mmol/l), and elevated blood urea (20.3 mmol/l) and creatinine (317 μmol/l). Blood ethanol level was 0.2 g/l. Screening for possible intoxication, including cocaine, opiates, and amphetamines, was negative. Electrocardiogram (ECG) showed sinus rhythm with wide QRS complexes and diffuse nonspecific ST changes. The patient was treated with continuous intravenous saline and insulin infusion. After 12 h, her blood glucose decreased to 17.5 mmol/l (pH 7.23, bicarbonate 12.0 mmol/l, potassium 5.12 mmol/l, and sodium 127.8 mmol/l). Blood urea decreased to 14.6 mmol/l and creatinine to 154 μmol/l. ECG was also normalized. After 36 h, the patient experienced transient stabbing chest pain, which was partially relieved by the change of body position. Complex ventricular arrhythmias, including short runs of ventricular tachycardia, were noticed. Repeat ECG revealed mild ST elevations in leads II, III, and aVF with negative T-waves in leads V2–V4. Echocardiography revealed somewhat depressed left ventricular systolic function (LVEF 45%) with hypokinesis of the posterior and inferior walls. Serum troponin I increased to 343 ng/ml (normal value ≤0.4 Continue reading >>

New Insights Into The Management Of Diabetic Ketoacidosis

New Insights Into The Management Of Diabetic Ketoacidosis

The diagnosis of diabetic ketoacidosis (DKA) in the ill-appearing diabetic dog is usually straightforward. Dogs with DKA usually present with dramatic clinical manifestations, such as anorexia, vomiting, and lethargy. Within such a setting, detection of ketonuria can rapidly confirm the suspicion of DKA, but it has few implications in the subsequent approach. One can estimate ketonemia by applying a drop of serum or plasma on the appropriate reagent of the urine test strip, but this test only detects acetoacetate and is a semiquantitative test. The measurement of plasma beta-hydroxybutyrate (β-OHB) on admission can provide additional information. Based on a previous study, dogs with plasma β-OHB >2.0 mmol/L should receive ambulatory monitoring and treatment, until the results of additional tests. If plasma β-OHB is >3.8 mmol/L the diagnosis of DKA is confirmed and intensive care is warranted.1 Coincidentally, a recent study in human beings with DKA, suggested that the same cutoff value of plasma β-OHB should be used for the diagnosis of DKA, using a portable meter (MediSense Optium, Abbott Laboratories).2 This device has been validated for the use in dogs.3 Evaluation of blood gases and pH is still needed. In a study of our group (unpublished data), mixed acid-base disorders were common, chiefly high anion gap acidosis and concurrent respiratory alkalosis, and hyperchloremic acidosis with moderated to marked increases in serum B-OHB. The implications of these findings are unknown, but in human patients with DKA, both conditions can possibly slower the recovery from metabolic acidosis. Because respiratory alkalosis is the expected physiologic response to metabolic acidosis, this mixed acid-base disorder may be difficult to recognize clinically, and the diagnosis can Continue reading >>

Diabetic Ketoacidosis

Diabetic Ketoacidosis

As fat is broken down, acids called ketones build up in the blood and urine. In high levels, ketones are poisonous. This condition is known as ketoacidosis. Diabetic ketoacidosis (DKA) is sometimes the first sign of type 1 diabetes in people who have not yet been diagnosed. It can also occur in someone who has already been diagnosed with type 1 diabetes. Infection, injury, a serious illness, missing doses of insulin shots, or surgery can lead to DKA in people with type 1 diabetes. People with type 2 diabetes can also develop DKA, but it is less common. It is usually triggered by uncontrolled blood sugar, missing doses of medicines, or a severe illness. Continue reading >>

Diabetes: Preventing Complications

Diabetes: Preventing Complications

Diabetes complications can be divided into two types: acute (sudden) and chronic (long-term). This article discusses these complications and strategies to prevent the complications from occurring in the first place. Acute complications Diabetic ketoacidosis (DKA) Hyperglycemic hyperosmolar non-ketotic syndrome (HHNS) Acute complications of diabetes can occur at any time in the course of the disease. Chronic complications Cardiovascular: Heart disease, peripheral vascular disease, stroke Eye: Diabetic retinopathy, cataracts, glaucoma Nerve damage: Neuropathy Kidney damage: Nephropathy Chronic complications are responsible for most illness and death associated with diabetes. Chronic complications usually appear after several years of elevated blood sugars (hyperglycemia). Since patients with Type 2 diabetes may have elevated blood sugars for several years before being diagnosed, these patients may have signs of complications at the time of diagnosis. Basic principles of prevention of diabetes complications: Take your medications (pills and/or insulin) as prescribed by your doctor. Monitor your blood sugars closely. Follow a sensible diet. Do not skip meals. Exercise regularly. See your doctor regularly to monitor for complications. Results from untreated hyperglycemia. Blood sugars typically range from 300 to 600. Occurs mostly in patients with Type 1 diabetes (uncommon in Type 2). Occurs due to a lack of insulin. Body breaks down its own fat for energy, and ketones appear in the urine and blood. Develops over several hours. Can cause coma and even death. Typically requires hospitalization. Nausea, vomiting Abdominal pain Drowsiness, lethargy (fatigue) Deep, rapid breathing Increased thirst Fruity-smelling breath Dehydration Inadequate insulin administration (not getting Continue reading >>

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