RESUMEN

This document represents the first collaboration between two organizations, American Society of Parenteral and Enteral Nutrition and the Society of Critical Care Medicine, to describe best practices in nutrition therapy in critically ill children. The target of these guidelines is intended to be the pediatric (> 1 mo and < 18 yr) critically ill patient expected to require a length of stay greater than 2 or 3 days in a PICU admitting medical, surgical, and cardiac patients. In total, 2,032 citations were scanned for relevance. The PubMed/Medline search resulted in 960 citations for clinical trials and 925 citations for cohort studies. The EMBASE search for clinical trials culled 1,661 citations. In total, the search for clinical trials yielded 1,107 citations, whereas the cohort search yielded 925. After careful review, 16 randomized controlled trials and 37 cohort studies appeared to answer one of the eight preidentified question groups for this guideline. We used the Grading of Recommendations, Assessment, Development and Evaluation criteria to adjust the evidence grade based on assessment of the quality of study design and execution. These guidelines are not intended for neonates or adult patients. The guidelines reiterate the importance of nutritional assessment, particularly the detection of malnourished patients who are most vulnerable and therefore potentially may benefit from timely intervention. There is a need for renewed focus on accurate estimation of energy needs and attention to optimizing protein intake. Indirect calorimetry, where feasible, and cautious use of estimating equations and increased surveillance for unintended caloric underfeeding and overfeeding are recommended. Optimal protein intake and its correlation with clinical outcomes are areas of great interest. The optimal route and timing of nutrient delivery is an area of intense debate and investigations. Enteral nutrition remains the preferred route for nutrient delivery. Several strategies to optimize enteral nutrition during critical illness have emerged. The role of supplemental parenteral nutrition has been highlighted, and a delayed approach appears to be beneficial. Immunonutrition cannot be currently recommended. Overall, the pediatric critical care population is heterogeneous, and a nuanced approach to individualizing nutrition support with the aim of improving clinical outcomes is necessary.

Asunto(s)

RESUMEN

OBJECTIVES: Feeding difficulties are frequent in children with neurological impairments and can be associated with undernutrition, growth failure, micronutrients deficiencies, osteopenia, and nutritional comorbidities. Gastrointestinal problems including gastroesophageal reflux disease, constipation, and dysphagia are also frequent in this population and affect quality of life and nutritional status. There is currently a lack of a systematic approach to the care of these patients. With this report, European Society of Gastroenterology, Hepatology and Nutrition aims to develop uniform guidelines for the management of the gastroenterological and nutritional problems in children with neurological impairment. METHODS: Thirty-one clinical questions addressing the diagnosis, treatment, and prognosis of common gastrointestinal and nutritional problems in neurological impaired children were formulated. Questions aimed to assess the nutritional management including nutritional status, identifying undernutrition, monitoring nutritional status, and defining nutritional requirements; to classify gastrointestinal issues including oropharyngeal dysfunctions, motor and sensory function, gastroesophageal reflux disease, and constipation; to evaluate the indications for nutritional rehabilitation including enteral feeding and percutaneous gastrostomy/jejunostomy; to define indications for surgical interventions (eg, Nissen Fundoplication, esophagogastric disconnection); and finally to consider ethical issues related to digestive and nutritional problems in the severely neurologically impaired children. A systematic literature search was performed from 1980 to October 2015 using MEDLINE. The approach of the Grading of Recommendations Assessment, Development, and Evaluation was applied to evaluate the outcomes. During 2 consensus meetings, all recommendations were discussed and finalized. The group members voted on each recommendation using the nominal voting technique. Expert opinion was applied to support the recommendations where no randomized controlled trials were available

Asunto(s)

RESUMEN

BACKGROUND: Biliary tract cancers (BTCs) include intrahepatic (IHC), hilar, distal bile duct (DBD) and gallbladder carcinoma (GBC). Neutrophil/lymphocyte ratio (NLR), a marker of host inflammation, is prognostic in several cancers but has not been reviewed in large BTC series, or advanced BTC (ABTC) at diagnosis. PATIENTS AND METHODS: Baseline demographics and NLR at diagnosis were retrospectively evaluated in 864 consecutive patients with BTC treated from January 1987 to December 2012. The association between NLR and overall survival (OS) was determined using a multivariable Cox proportional hazards model. RESULTS: Eight hundred and sixty-four patients were included in the analysis, of which 62% had ABTC and 38% had surgery with curative intent. Median age was 65 years, 444 (51%) were male and 727 (84%) had performance status (PS) ⩽ 2. A NLR ⩾ 3.0, PS >2, IHC primary, stage, lack of surgery, haemoglobin <110 g/L and albumin <40 g/L were associated with significantly worse OS on multivariable analysis. A NLR ⩾ 3.0 was an independent prognostic factor for OS for the entire cohort; median OS was 21.6 months versus 12.0 months for patients with NLR <3.0 versus NLR ⩾ 3.0 respectively (adjusted hazard ratio (HR)-1.26, 95% confidence interval (CI); 1.06-1.50, P = 0.01). NLR was also prognostic in patients with ABTC (HR-1.26, 95% CI; 1.02-1.56, P = 0.035) and hilar cancer: overall group (N = 149) (HR-1.70, 95% CI; 1.10-2.50, P = 0.01) and advanced group (N = 111) (HR-1.57, 95% CI; 1.04-2.44, P = 0.048). CONCLUSION: Baseline NLR is a readily available and inexpensive prognostic biomarker in patients with BTC and likely warrants validation in large prospective clinical trials.

Asunto(s)

RESUMEN

UNLABELLED: Transcatheter coronary interventions requiring abciximab (ReoPro) are associated with vascular access site complications. Several devices have been developed to aid in the closure of the femoral arteriotomy, including collagen plug devices (VasoSeal, AngioSeal), percutaneous suture closure (Perclose), and aids to manual compression (Femostop). In 185 patients who received abciximab plus aspirin and heparin for transcatheter coronary interventions, we compared femoral arteriotomy closure by three different methods: VasoSeal, Perclose, and Femostop. A composite endpoint of late complications defined as an access site-related bleed or hematoma that required blood transfusion or an extended hospital stay, pseudoaneurysm, arteriovenous fistula, arterial or venous thrombosis was compared. VasoSeal was initially successful in 41/52 patients (78.8%). The 11 patients who failed to have adequate hemostasis with VasoSeal required manual compression aided by Femostop, but had no late complications. There was one access site infection and one fatal retroperitoneal hematoma unrelated to the vascular access site (surgically explored). There were no late complications. Perclose was successful in 48/56 patients (85.7%). One Perclose failure required surgical repair for an extensive arteriotomy. The other Perclose failure required manual compression aided by Femostop, but had no late complications. There were no access site infections requiring intravenous antibiotics. There was one retroperitoneal bleed that extended the patient's hospital stay and for which a blood transfusion was required. Femostop was successful in 77/77 patients (100%). There were no infections. Late complications occurred in four patients. These included three episodes of bleeding or hematomas requiring blood transfusion, and one pseudoaneurysm. CONCLUSION: In patients receiving abciximab in addition to aspirin and heparin, VasoSeal and Perclose are at least as safe as Femostop when used to achieve homeostasis after sheath removal. VasoSeal and Perclose have a significantly lower initial rate of successful hemostasis than Femostop. The numbers of late complications between the VasoSeal, Perclose, and Femostop groups were not significantly different. In those patients in whom VasoSeal or Perclose failed, no late complications occurred. Access site infections were no different between VasoSeal, Perclose, and Femostop.

Asunto(s)

Asunto(s)

RESUMEN

OBJECTIVES: This multicenter study sought to evaluate the short-term efficacy and safety of prolonged, low dose, direct urokinase infusion in recanalization of chronically occluded saphenous vein bypass grafts in a large sample of patients, as well as to determine the 6-month patency rates for this procedure. BACKGROUND: Patients with chronically occluded aortocoronary vein grafts and uncontrolled angina pectoris have limited options for therapy. Previous work has shown that chronically occluded vein grafts can be recanalized by thrombolysis. METHODS: A coaxial infusion of urokinase (100,000 U/h) was given directly into occluded vein grafts in 107 patients. Balloon angioplasty was performed after lysis was achieved. Patients were discharged with warfarin and aspirin therapy. Six-month clinical follow-up data were obtained, and repeat angiography was encouraged. RESULTS: Initial patency was achieved in 74 patients (69%). Mean duration of infusion was 25.4 h, and mean urokinase dosage was 3.70 million U. Acute adverse events included acute myocardial infarction in 5 patients (5%), enzyme level elevation in 18 (17%), emergency coronary artery bypass graft surgery in 4 (4%), stroke in 3 (3%) and death in 7 (6.5%). Recanalization was unsuccessful in all seven patients who died. Six-month follow-up angiograms were obtained for 40 patients (54%), 16 of whom maintained a patent graft (40%). Angina was present in 13 patients with successful (22%) and 12 with unsuccessful (71%) recanalization at 6-month follow-up. CONCLUSIONS: Chronically occluded aortocoronary vein grafts can be recanalized in approximately 70% of appropriately selected patients. Complications are similar to those observed with repeat operations. Clinical follow-up shows an improvement in angina. This procedure is intended for patients with only one occluded vein graft. Strict adherence to the protocol will improve patency and reduce complications.

Asunto(s)

RESUMEN

Balloon angioplasty of aorto-ostial right coronary artery (RCA) and aorto-ostial saphenous vein graft (SVG) stenoses has been reported to be associated with a suboptimal acute success rate, a higher incidence of restenosis and an increased risk of emergent coronary artery bypass surgery. In this report, we describe the use of directional coronary atherectomy (DCA) as a treatment alternative in a series of twenty three patients who were documented to have a > 60% stenosis within 3 mm of the origin of the RCA (15 patients) or SVG (8 patients) as measured by on-line quantitative angiography. DCA was successfully performed in 14 of 15 RCA ostial lesions and in all eight SVG lesions. This yielded an acute success rate of 93% and 100% with a mean reduction in percent stenosis from 87% to 9% and from 85% to 8% respectively. Only one patient, presenting with an ostial RCA lesion, was unable to be revascularized using DCA. All successfully treated patients underwent exercise treadmill testing or repeat cardiac catheterization in follow-up. Clinical evidence of restenosis defined as recurrent chest pain or ischemic evidence on exercise treadmill and > 50% angiographic restenosis was demonstrated in three of twenty two patients (14%). Of the nine successfully treated patients who underwent repeat cardiac catheterization, three (33%) had restenosed for an angiographic rate of 25% for RCA and 50% for SVG lesions. In conclusion, DCA of aorto-ostial stenoses is technically feasible and can be performed with good initial results.(ABSTRACT TRUNCATED AT 250 WORDS)

Asunto(s)

RESUMEN

Abrupt coronary occlusion following conventional balloon angioplasty (PTCA) remains a serious complication afflicting up to 10% of patients. Although repeat PTCA for prolonged durations can restore blood flow in approximately 50% of patients, if this technique fails, the patient is generally referred for emergent coronary bypass surgery. In this report, we describe the use of directional coronary atherectomy (DCA) as a bail-out technique on 16 patients (17 lesions) undergoing angioplasty who demonstrated a flow limiting dissection and clinical evidence of ongoing ischemia following the procedure which could not be reversed with repeat dilatation (mean 3.5 inflations) at prolonged balloon inflations (mean 6.9 min). Ten of these patients presented to the hospital with a diagnosis of unstable angina and the remaining patients were admitted with acute myocardial infarction. The majority of the incidences of abrupt occlusion (83%) occurred while the patient was still in the cardiac catheterization laboratory. Successful rescue atherectomy was achieved in 15 of the target arteries (88%). In two patients, this technique failed to stabilize the artery and emergent coronary bypass surgery was performed. A complication related to the bail-out procedure developed in three of the successfully treated patients during the same hospitalization. Two patients experienced recurrent abrupt occlusion which was successfully treated with a repeat bail-out atherectomy procedure and one patient developed a non Q wave myocardial infarction. All patients were followed clinically for a mean interval of 9.93 months. Ten patients (71%) remained free of symptoms and cardiovascular events for this period. Stress electrocardiography was performed on eleven (79%) of the successfully treated patients and in no case was ischemia demonstrated.(ABSTRACT TRUNCATED AT 250 WORDS)

Asunto(s)

RESUMEN

The accuracy of three new pseudoisochromatic tests for detecting red-green colour deficiency was assessed. These were the Ishihara plates, the Ishihara test for 'unlettered persons' and Ohkuma's test cards. We examined 500 subjects; 471 normal trichromats and 29 colour-deficient people. Results obtained for the 1989 edition of the Ishihara plates were compared with the 9th edition and the most efficient plates identified. Although normal trichromats may be expected to make several interpretive misreadings, the Ishihara plates were found to be superior to the 9th edition and to the Ohkuma test (1986) for colour vision screening. The new symbol designs of the Ishihara plates for 'unlettered persons' (1990) were found to be very effective for colour vision screening, and a further study with young children is proposed. The 38 plate 1989 edition of the Ishihara test is recommended for use in clinical practice. The designs included in the concise 24 plate edition and the new abbreviated 14 plate edition are not selected from the point of view of accuracy and more reliable results are obtained if the full test is given or if the practitioner shows only the most efficient designs.

Asunto(s)

Asunto(s)

RESUMEN

Fifty-four patients presenting with stenotic lesions in a major coronary artery visually estimated by diagnostic angiography to be greater than 90% but less than 100% were randomized to one of two angioplasty regimens, predilatation (group 1) or no predilatation (group 2). In group 1, the artery was initially dilated with a 2 mm balloon followed by a balloon that was considered by the operator to be the definitive size to fully dilate the target vessel. In group 2, the artery was dilated with a balloon deemed the definitive size to complete the angioplasty procedure. There were no statistical differences between groups with respect to age, sex, history of unstable angina, or prior acute myocardial infarction. There were also no significant differences in the angiographic characteristics of the coronary lesions including artery location, lesion length, concentric or eccentric morphology, tubular versus discrete stenosis, calcium in lesions, or lesions on a bend. Following angioplasty, luminal filling defects were present in 5% of the predilated group and in 9% of the nonpredilated group (p = NS). The incidence of luminal border haziness at the dilatation site did not differ between groups, seven (35%) in group 1 versus eight (24%) in group 2. Angiographic evidence of a linear dissection at the angioplasty site was also similar between groups, one (5%) in group 1 versus five (15%) in group 2. Occlusive complications were witnessed in 10% of the predilated group and 12% of the nonpredilated group (p = NS).(ABSTRACT TRUNCATED AT 250 WORDS)

Asunto(s)

RESUMEN

Chronic occlusion of saphenous vein aortocoronary bypass grafts is a common problem. Although percutaneous transluminal angioplasty of a saphenous vein with a stenotic lesion is feasible, angioplasty alone of a totally occluded vein graft yields uniformly poor results. Patients with such occlusion are often subjected to repeat aortocoronary bypass surgery. Experience with a new technique that allows angioplasty to be performed in a totally occluded saphenous vein bypass graft is reported. This technique utilizes infusion of prolonged low dose urokinase directly into the proximal portion of the occluded graft. Forty-six consecutive patients with 47 totally occluded grafts were studied. Patients had undergone end to side saphenous vein bypass grafting 1 to 13 (mean 7) years previously. All patients presented with new or worsening angina pectoris with ST-T changes or non-Q wave acute myocardial infarction and all had a totally occluded saphenous vein bypass graft. The new technique entailed the positioning of an angiographic catheter into the stub of the occluded graft and the advancement of an infusion wire into the graft. Patients were returned to the coronary care unit, where urokinase was delivered at a dose of 100,000 to 250,000 U/h. The total dose of urokinase ranged from 0.7 to 9.8 million U over 7.5 to 77 h (mean 31). After therapy, recanalization was seen in 37 (79%) of the 47 grafts. In 20 successfully treated patients, angiography was performed 1 to 24 (mean 11) months after treatment; 13 (65%) of these grafts were patent.(ABSTRACT TRUNCATED AT 250 WORDS)

Asunto(s)

Asunto(s)

Asunto(s)

Asunto(s)

RESUMEN

UNLABELLED: During a 3-year period, intravenous streptokinase (IV STK) was given to 110 consecutive patients ages 34-78 in the course of acute myocardial infarction (AMI) in three community hospitals served by the same paramedic system. 1.5 million units of IV STK was given over 30 minutes. Half of the patients were brought to the hospital by paramedics. The average time from onset of pain to administration of IV STK was 107 minutes in the paramedic group and 182 minutes for the others. Of 110 patients, 98 (89%) showed clinical evidence of reperfusion and 94 of 106 patients (89%) showed angiographic reperfusion. Angiography was performed from 1 to 10 days post-AMI. Mean time to angiography was 6 days for the first 58 patients and 2 days for the last 52 patients. In-hospital mortality was 2 of 110 patients and there was 1 late death at 8 months for an overall 3-year mortality 2.7%. Of 86 patients, 83 (96%) working before their infarct are working now. Of 107 survivors, 96 (90%) are Functional Class I. CONCLUSIONS: (1) IV STK is safely administered in a high percentage of AMI patients. (2) IV STK is safely administered in community hospitals. (3) Paramedics act as an early warning system and allow for earlier treatment than patients presenting without paramedic involvement. (4) Successful coronary reperfusion with IV STK results in low mortality rates and minimizes functional disability. (5) A system-wide approach to reducing time to treatment in AMI may be the most influential factor in affecting morbidity and mortality.

Asunto(s)

Asunto(s)

RESUMEN

Reports are presented demonstrating a technique for dissolving thrombus in coronary arteries and bypass grafts by using prolonged selective infusion of urokinase via an infusion wire. This allows one to pass a steerable guide wire through the culprit stenosis and perform angioplasty on a distal lesion which could not be previously seen.

Asunto(s)

RESUMEN

UNLABELLED: We studied 58 consecutive patients, ages 37 to 78, who were given intravenous streptokinase (IV STK) early in the course of acute myocardial infarction (AMI) in three community hospitals served by the same mobile intensive care system. Forty-four patients (76%) received IV STK within 3 hours and 53 patients (92%) received it within 4 hours of onset of chest pain. Half the patients were brought to the hospital by paramedics. The average time from pain to administration of IV STK for paramedic patients was 100 minutes vs 198 minutes for those brought by other modes. Fifty of 58 patients (86%) showed clinical evidence of reperfusion. Forty-six of 54 patients (85%) studied with coronary angiography an average of 6 days post infarction had patent vessels subtending the infarcted region of the myocardium. The average angiographic ejection fraction was 47% for patients with reperfused vessels vs 34% for those with occluded vessels. The in-hospital mortality was 2 of 58 patients (3.4%). There was one late death at 8 months (total 5.2%). Twenty-one patients eventually had coronary bypass surgery and 5 patients had angioplasty. The remaining 29 patients had conventional therapy including 6 months of warfarin sodium. Fifty-four of 55 surviving patients (98%) are in functional class I or II and none have angina at 2 to 18 months of follow-up. Fifty-one of 55 patients are back at work. CONCLUSIONS: (1) IV STK is effective in coronary thrombolysis in a high percentage of AMI patients. (2) IV STK is safely administered in community hospitals.(ABSTRACT TRUNCATED AT 250 WORDS)

Asunto(s)

RESUMEN

Medical treatment of postinfarction ventricular septal rupture carries a high mortality. Delayed surgery can be done with good results but many patients die awaiting operation. In 1978 we decided that all such patients presenting to us should undergo urgent cardiac catheterization and surgery. Since then we have seen 22 such patients. Two decided against surgery and died in the hospital. Twenty agreed to surgery; in 15 of these an intra-aortic balloon pump was inserted before catheterization and in another four at the time of operation. Catheterization was performed without complication, and surgery was performed within 2 days of septal rupture in all 20 patients. Twelve patients (60%) survived hospitalization. Three patients died of pump failure shortly after surgery; five died after a second operation for free wall rupture (n = 2) or persistent or recurrent septal defect (n = 3). Two other patients survived reoperation. Survivors were significantly younger than nonsurvivors and had a higher cardiac index and a lower shunt ratio. At a mean follow-up of 47.9 months, there has been one late noncardiac death. Eleven patients survive, all in class I or II. We conclude that in patients with septal rupture urgent surgery results in improved near-term survival compared with known survival rates in medically treated patients. Early recurrent rupture is common and often disastrous and requires refinement in operative technique. Age, cardiac index, and shunt volume are related to surgical outcome. Hospital survivors do very well on a long-term basis. We recommend continuation of this aggressive approach.

Asunto(s)