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One hundred patients underwent coronary revascularisation with both internal mammary arteries between 1987 and 1990. The average age of the patients was 55 years. The left internal mammary was used in 97 of the 100 cases as a pediculated graft to revascularise the left anterior descending (66 cases), left lateral (27 cases) or a bissecting artery (4 cases). The right internal mammary was used as a pediculated graft in 51 cases and as a free graft to revascularise a left lateral (51 cases), left anterior descending (29 cases) or right coronary artery (20 cases). There was one death in the first 30 postoperative days. Morbidity was low with no cases of sternal infection. The average postoperative bleeding was 633 +/- 550 ml per patient. The incidence of phrenic nerve paralysis decreased from 36% in the first 50 patients to 6% in the second 50 patients. Angiography at the 10th postoperative day showed 4 occlusions out of 132 internal mammary arteries opacified (97% patency). Ninety four patients are asymptomatic and have negative exercise stress tests. Mortality and morbidity of coronary surgery using the two internal mammary arteries are therefore the same as those of conventional coronary surgery using saphenous veinar only one internal mammary artery, providing that it is reserved for patients in good general condition, under 65 years of age, without obesity or diabetes. This technique of coronary artery revascularization should provide better long-term results because of the high patency rate of the grafts.
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PMID:[Coronary artery bypass with 2 internal mammary arteries. Early clinical and angiographic results in 100 patients]. 156 20

The expression "immunocompromised host" refers to an individual who has one or more defects in the body's natural defense, which leads to severe, often life-threatening, infections. Alcoholism, diabetes mellitus, advanced age, the use of antacids, and viral infections have immune-modulating effects. The human immunodeficiency virus, cytomegalovirus, Epstein-Barr virus, and Non A, Non B hepatitis virus also contribute to immunosuppression. The lung has a special vulnerability to infection, and pneumonia accounts for more than 40% of deaths in the immunosuppressed population. Diagnostic methods include detection of microbial antigens by monoclonal antibodies, DNA sequences by the polymerase chain-reactions or DNA probes, and unique metabolites of pathogens by gas chromatography. Transtracheal aspiration was used to obtain uncontaminated respiratory secretions, but fiberoptic bronchoscopy with shielded brush and bronchoalveolar lavage (BAL) is a better means of diagnosis because of a 90% sensitivity in diagnosing pneumocystis infection. Percutaneous aspiration and open lung biopsy are reserved for more complicated cases. Empiric treatment is justified in far advanced AIDS or relapsed myelogenous leukemia with limited life expectancy, or when there is uncontrollable bleeding diathesis or impaired pulmonary function as invasion diagnostic procedures will not be tolerated. The most important antiinfective measure is careful hand washing, while prophylactic antibiotics, selective decontamination, and antifungal, antiviral, and antiparasitic agents can be used. Active and passive immunization against specific pathogens, immunological reconstitution with granulocyte-macrophage colony-stimulating factor (GM-CSF) and reducing the dosage of immunosuppression are the other strategies for prevention. In the last several decades there has been substantial progress in the management of chronic diseases which used to be fatal.
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PMID:Pulmonary infections in the immunocompromised host. 166 54

In the context of peripheral vascular disease, the clinical history provides a means of evaluating coronary risk. The key features are: age, previous myocardial infarction especially when recent (under 6 months), anginal pain, smoking, diabetes and ventricular arrhythmias. Treadmill testing, often limited by symptoms of claudication, may reveal severe coronary ischemia and thereby the patients at very high risk. Upper limb exercise stress testing gives results similar to standard protocols of non-atherosclerotic patients when correctly performed and a reliable detection and evaluation of coronary lesions. Thallium dipyridamol myocardial scintigraphy is a very useful diagnostic method but requires special radionuclide facilities. This technique demonstrates the site of ischemia. Coronary angiography should be reserved for special cases because the risks of the procedure are always greater in patients with peripheral vascular disease.
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PMID:[Which coronary investigation should be performed in patients with peripheral arterial diseases?]. 176 87

With the help of a gamma scintillation camera and a connected data manipulation system using the radioisotope 99mTc pertechnetate the large salivary glands of the head of 44 patients without pathological history of the salivary glands were examined by the results were interpreted. Because of the extended interval it was not able to ascertain normal values with clinical usefulness of the radionuclide accumulation in the large salivary glands. The time-activity-profiles which were won above "regions of interest" were very variably. The patients were divided classify and by using statistical test we found nonsecure influence of age or diabetes mellitus on the function of the salivary glands. Three types of normal time-activity-profiles were differed. In consequence of the discrepancy between the technical expance and the diagnostic value these method will to reserved to a limited range of indication outside the routine diagnostic.
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PMID:[Computer scintigraphic investigations of function of large salivary glands]. 217 83

The risk of blindness in diabetes may be significantly reduced by a suitable ophthalmic therapy. In order to apply this therapy in due time to the population at risk, all diabetics should be referred to ophthalmological follow-up examination at regular intervals. A rapid progression of a retinopathy may occur in young patients, especially during puberty and pregnancy, after change from oral antidiabetics to insulin and, temporarily, following strict control of blood glucose. Besides normoglycemia, the prevention of a high blood pressure is an important prerequisite of an efficient treatment of diabetic retinopathy. Retinal photocoagulation has been proven the most effective mode of therapy. The correct indication and stage-depending dosage of retinal laser coagulation in diabetes is a demanding task which should be reserved to well-trained specialists in this field. Diabetic vitreous bleeding and retinal traction detachment are complications of advanced proliferative diabetic retinopathy, which can be treated successfully in 60-70% of the cases by modern techniques of vitreoretinal surgery.
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PMID:[Diabetic retinopathy]. 223 47

Diabetic ketoacidosis is an all too frequent and sometimes preventable complication of Type I diabetes mellitus, responsible for significant morbidity and mortality within the diabetic population. Precipitating diseases account for the majority of deaths occurring in patients admitted in diabetic ketoacidosis, but some deaths are still attributable to ketoacidosis alone, despite recent advances in therapy and management. Recognition of the ketoacidotic state is paramount to optimal therapy, and often hinges on the diagnostic acumen of the physician. Since 20 to 30% of patients presenting in diabetic ketoacidosis do so as the initial manifestation of their previously undiagnosed disease, physicians must maintain a high level of suspicion for this condition. Understanding the pathogenetic mechanisms leading to and prevailing in diabetic ketoacidosis will allow physicians to intervene in a rational manner, approaching therapy with specific end-points in mind: (a) restoration of optimal volume status; (b) reversal of acidosis; (c) reduction of serum glucose levels; (d) replacement of specific electrolytes in a timely manner; (c) institution of appropriate therapy for any precipitating cause; and, (f) careful monitoring of the patient's biochemical, physical and mental parameters to allow adjustment in therapy as necessary. The mainstay of treatment for diabetic ketoacidosis is appropriate fluid and insulin therapy. Low-dose intravenous infusion is now the accepted mode of insulin delivery for patients with this condition. Potassium replacement is almost always necessary, often requiring massive amounts of this ion due to the total body depletion seen with the development of ketoacidosis. Controversy still surrounds routine use of phosphate in diabetic ketoacidosis but replacement may be needed if serum levels fall toward the lower limits of normal values, to avoid the potential adverse effects of phosphate depletion. Administration of bicarbonate is also controversial and should be reserved for patients whose pH is less than 7.0 to 7.1 and then it should be added to intravenous fluids, not given as an intravenous bolus. Efforts toward preventing diabetic ketoacidosis should be of prime importance to physician and patient alike. Preventive measures should include patient education about diabetes mellitus, precipitating factors of diabetic ketoacidosis, signs and symptoms of early metabolic decompensation, rational insulin therapy during minor illness and appropriate timing of physician contact to help avoid this serious and sometimes fatal complication of diabetes mellitus.
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PMID:Management of diabetic ketoacidosis. 250 77

Chronic pancreatitis of biliary origin, frequently located in the cephalic portion of the organ, etiopathogenically dependent on biliary lithiasis, the anatomoclinical evolution of which is complicated by their presence, have a better prognosis, and are usually reversible following therapy of the biliary affections. Persistent chronic pancreatitis proper, usually of the recurrent type, associated with calcification and the development of pancreatic stones, and with pseudocysts, although rare in our country, raise diagnostic difficulties from the standpoint of surgery, and have a reserved prognosis. The authors have evaluated a total of 321 cases hospitalized between 1960 and 1987 with chronic pancreatitis of biliary origin (252 cases--78.5%), and chronic pancreatitis proper, not associated to biliary affections (69 cases--21.5%). Male patients totalled 33.6% of all cases. The authors stress the high frequency of chronic pancreatitis associated to biliary lithiasis (181 cases), in contrast with pancreatitis associated to nonlithiasic cholecystopathies (38 cases), or to postoperative cholecystic disturbances (33 cases). Chronic pancreatitis non-associated to biliary affections totalled 69 cases, of which 24 were of the persistent type, 13 were of the recurrent type, one had calcifications, two had pancreatic stones, four followed acute pancreatitis, six were complicated by pancreatic abscesses, and 9 were complicated by pseudocysts. The duration of biliary and pancreatic disturbances was between 3 and 5 years in 43.9% of the cases, and between 6 and 10 years in 21.3%. Chronic pancreatitis achieves a complex clinical syndrome, the dominant feature being the painful biliopancreatic syndrome associated to obstructive jaundice (42.4%), angiocholitis (47.6%), weight loss (46%), hepatic and renal failure (10.9%), diabetes (8.4%), and a tumoral mass (15.7%). Indirect surgical interventions aimed at suppressing the biliary factor were carried out in 291 patients, with very good results in 56% of the cases, good results in 32%, mediocre in 7%. In 2.4% of the cases surgery failed to improve the condition of the patients. Direct interventions on the pancreas, which consisted either in pancreatic decompression or in exeresis of the gland have been performed in 30 patients. Drainage of pancreatic abscesses was done in 6 patients (2 deaths), cystic-digestive anastomoses were performed in 8 patients, Wirsung-jejunostomy in 3 patients (1 death), cystostomy in one patient, distal pancreatectomy in one patient (deceased), viscerolysis and novocaine infiltration in 11 patients. In the 321 cases of chronic pancreatitis operated by direct and indirect procedures very good
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PMID:[Chronic pancreatitis: anatomico-clinical and surgical therapy characteristics. Our experience with 321 cases]. 252 82

We evaluated survival and risk factors in 86 elderly patients (pts) who underwent dialysis at one center throughout the last 10 years. Thirty-five pts received hemodialysis (HD), 32 intermittent peritoneal dialysis (IPD), and 19 continuous peritoneal dialysis (CAPD). Risk factors included: treatment, age, sex, underlying disease, heart failure (HF), peripheral vascular disease (PVD), diabetes mellitus (DM) and malignancy. Median age was 65 years for both HD and CAPD, and 69 for IPD (p less than 0.05). Survival evaluation demonstrated a longer life span for HD vs. IPD (p = 0.02) for CAPD vs. IPD (p = 0.03) and no difference between HD and CAPD pts. Cox analysis showed higher death odds ratio (OR = 2.4) for IPD vs. HD and lower ratio for CAPD vs. IPD (OR = 0.3). Other OR positive risk factors were: HF, PVD, DM and malignancy. The median value of risk factors for each group was higher for both IPD and CAPD vs. HD. Both life span and death OR for CAPD were equal to HD in spite of higher risk factors in CAPD group. The lower survival of the IPD group may be due to its older age. CAPD should represent the elective treatment for elderly uremics while HD or IPD should be reserved for selected patients.
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PMID:Dialysis for the elderly: survival and risk factors. 257 26

Thirty one alcoholic patients with pancreatic cysts were studied by ultrasonographic scanning with the purpose to observe the evolution of the cysts. The mean time of the follow-up was 15.6 +/- 9.2 months; the patients were aged 40.2 +/- 9.3 years (male = 93.5%; female = 6.4%) the average pure ethanol intake was 288.3 +/- 185.9 ml for a period of 20.8 +/- 9.3 years. In 21 of the 31 patients (67.7%) the ultrasonographic examination showed total spontaneous resolution of the cysts within a time span of less than 18 months. The majority of the parameters studied (age, time and volume of ethanol intake, pain, diabetes, calcifications and previous cyst drainage) had no relation with the evolution of the cysts. In 11 patients (52.3%) the cysts showed an initial enlargement before decreasing in size. The cysts located in the pancreatic head showed less tendency to spontaneous resolution. Complications were observed in two patients: intra-cystic haemorrhage in one and rupture into the peritoneal cavity in the other. Our observations suggest that patients with pancreatic cysts secondary to chronic alcoholic pancreatitis should be controlled with periodical ultrasonography. Surgical approach should be reserved for patients with complications.
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PMID:[Spontaneous remission of pancreatic cysts in patients with chronic pancreatitis]. 270 Jan 5

Non-insulin-dependent diabetes mellitus patients are those patients who do not require insulin for survival and do not have gestational, secondary, or malnutrition-related diabetes. They may require insulin to maintain good health. Therapy in NIDDM should attempt to reverse the coexisting defects of insulin deficiency and insulin resistance that lead to hepatic glucose over-production and diminished glucose tissue utilization. Both sulfonylureas and insulin can achieve near normal FPGs and HbA1c concentrations in mild to moderately severe NIDDM. Both can reduce insulin resistance and both increase insulin availability. Evidence exists, however, showing that prevention of post-prandial hyperglycemia, whose significance is unknown, may require soluble preprandial insulin. Treatment goals should be realistic and discussed with the patient. In younger patients, the aim should be to achieve normoglycemia, while in those who have other significant medical or social problems, or who are of advanced age, diabetic control may, out of necessity, need to be relaxed. At presentation a diet and exercise program should be initiated and the patient observed if clinically well. If diet fails to reduce the FPG below 108 mg/dl, additional therapy should be used. In mild to moderate NIDDM, sulfonylurea or basal insulin (given as once daily long- or intermediate-acting insulin) can be equally successful without the need for rigid dietary habits. More severe degrees of NIDDM or patients with sulfonylurea failure not caused by dietary indiscretion will require more complex insulin regimens. The socially dependent patient requiring insulin should have as simple a regimen as possible. The insulin-resistant patient undergoing surgery or with an intercurrent illness is most easily managed with a variable rate insulin infusion that allows prediction of subsequent subcutaneous insulin requirements. Combination insulin-sulfonylurea therapy should be reserved for patients failing to achieve acceptable glycemic control when insulin and sulphonylurea are used separately. It may improve control or lessen insulin requirements.
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PMID:Insulin: either alone or combined with oral hypoglycemic agents. 305 69


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