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Hyperglycemia before ischemia worsens cerebral outcome. The aim of this study was to determine the cerebral effects of giving glucose with or without insulin after asphyxial cardiac arrest. Rats underwent 8 min of asphyxial cardiac arrest. After arrest, Group 1 received NaCl; Group 2, insulin; Group 3, glucose; and Group 4, glucose plus insulin, all intravenously. Neurological deficit (ND) scores were 14+/-10%, 22+/-12%, 12+/-10% and 2+/-2% in Groups 1-4, respectively, 72 h after reperfusion. Overall histological damage (HD) scores were 4, 2, 3 and 1, respectively. Group 4 fared significantly better than group 1 on both scores. Glucose after asphyxial cardiac arrest in rats produces no increased brain damage while glucose plus insulin improves cerebral outcome.  相似文献   

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The efficacy of hCG treatment was studied in 182 cryptorchid patients. The efficacy of the treatment correlated with the initial position of the testis. None of the abdominal testes reached a normal position, whereas 90% of high scrotal testes descended during the treatment. Fifty-four boys who were treated unsuccessfully with hCG and 29 untreated boys were biopsied. The biopsies were performed on 32 scrotal and 87 maldescended testes to examine the state of the organ and the effects of hCG treatment. In biopsies, the volume densities of seminiferous tubules, interstitial tissue and blood vessels were counted, and the sections screened for interstitial bleeding. Significant differences between scrotal and maldescended testes were found in all of the volume densities measured. Interstitial bleeding occurred rarely in scrotal testes, whereas in maldescended testes it was frequently apparent. hCG treatment induced a significant increase in the volume density of both interstitial tissue and blood vessels. Even though the hCG treatment induced measurable, possibly harmful, changes both in scrotal and maldescended testes, our data do not prove that hCG treatment causes permanent damage to the testis.  相似文献   

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Despite a growing number of studies showing good effectiveness of nonpharmacological treatments such as thermal biofeedback (TBF) for pediatric migraine, little is known about psychosocial variables that might be predictive of treatment outcome. The identification of predictors appears especially important when children are treated in a home-based treatment format that tends to be somewhat less effective than a therapist-administered treatment. A total of 32 children between the ages 8 and 16 years completed a home-based TBF treatment program with treatment outcome being of similar magnitude as previously reported in the literature. Multiple regression analysis revealed externalizing behavior tendencies, initial level of psychosomatic complaints, and the child's age to be highly predictive of outcome, whereas dimensions of family functioning failed to exert a direct influence. The implications of these findings for the development and evaluation of future treatment programs are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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BACKGROUND AND PURPOSE: Increasing evidence that oxidative stress contributes to delayed neuronal death after global cerebral ischemia has led to reconsideration of the prolonged use of 100% ventilatory O2 following resuscitation from cardiac arrest. This study determined the temporal course of oxidation of brain fatty acyl groups in a clinically relevant canine model of cardiac arrest and resuscitation and tested the hypothesis that postischemic ventilation with 21% inspired O2, rather than 100% O2, results in reduced levels of oxidized brain lipids and decreased neurological impairment. METHODS: Neurological deficit scoring and high performance liquid chromatography measurement of fatty acyl lipid oxidation were used in an established canine model using 10 minutes of cardiac arrest followed by resuscitation with different ventilatory oxygenation protocols and restoration of spontaneous circulation for 30 minutes to 24 hours. RESULTS: Significant increases in frontal cortex lipid oxidation occurred after 10 minutes of cardiac arrest alone with no reperfusion and after reperfusion for 30 minutes, 2 hours, and 24 hours (relative total 235-nm absorbing peak areas=7.1+/-0.7 SE, 17.3+/-2.7, 14.2+/-3.2, 16.1+/-1.0, and 14.0+/-0.8, respectively; n=4, P<0.05). The predominant oxidized lipids were identified by gas chromatography/mass spectrometry as 13- and 9-hydroxyoctadecadienoic acids (13- and 9-HODE). Animals ventilated on 21% to 30% O2 versus 100% O2 for the first hour after resuscitation exhibited significantly lower levels of total and specific oxidized lipids in the frontal cortex (1.7+/-0.1 versus 3.12+/-0.78 microg 13-HODE/g wet wt cortex., n=4 to 6, P<0.05) and lower neurological deficit scores (45.1+/-3.6 versus 58.3+/-3.8, n=9, P<0.05). CONCLUSIONS: With a clinically relevant canine model of 10 minutes of cardiac arrest, resuscitation with 21% versus 100% inspired O2 resulted in lower levels of oxidized brain lipids and improved neurological outcome measured after 24 hours of reperfusion. This study casts further doubt on the appropriateness of present guidelines that recommend the indiscriminate use of 100% ventilatory O2 for undefined periods during and after resuscitation from cardiac arrest.  相似文献   

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PURPOSE: This study was undertaken to examine the effect of local injection of potent steroids on recurrence of Crohn's disease strictures. METHODS: Ten patients with colonic strictures attributable to Crohn's disease were treated by dilation and injection of triamcinolone. Five of them had postoperative strictures. RESULTS: Patients were followed for 1.5 to 3 years. Two patients required additional dilation and injection of steroids after one year. Eight patients remained well. CONCLUSION: Local injection of steroids improves outcome in strictures caused by Crohn's disease.  相似文献   

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We determined the predictive value of combined beta-methyl iodophenyl pentadecanoic acid (BMIPP) and sestamibi scintigraphy for the functional outcome after myocardial infarction and compared the value of this approach with dobutamine echocardiography. METHODS: Rest BMIPP, rest sestamibi and low-dose dobutamine echocardiographic studies were obtained in 18 patients 4 to 10 days after infarction (mean 6.7 +/- 2.0 days). Six months later, a rest echocardiographic study was performed to assess functional outcome. RESULTS: Wall motion improved in 27/33 segments (82%) which showed mismatching but not in 19/21 segments (90%) with matched defects (p < 0.001). The accuracy of combined BMIPP and sestamibi SPECT in predicting segmental functional outcome was higher (85%) than that of sestamibi uptake alone (77%). Wall motion improved in 16/20 segments (80%) showing contractile reserve and not in 21/34 segments (63%) with the negative dobutamine test, giving an accuracy of 69% for dobutamine echocardiography. Combination of the two techniques resulted in higher positive (94%) and negative predictive values (94%). CONCLUSION: Mismatching of BMIPP and sestamibi uptake is predictive for long-term functional recovery after acute myocardial infarction. In contrast, segments with matched defects contain only scar tissue. Combined BMIPP and sestamibi scintigraphy offers increased accuracy compared to dobutamine echocardiography.  相似文献   

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The forehead lift, with interruption of the continuity of the frontalis muscle, has been an effective method in our hands for improving the appearance of the upper third of the face. It can be done independently, or combined with a facial rhytidectomy, a blepharoplasty, and/or other ancillary procedures. In some cases of apparent upper lid redundancy, it can eliminate the need for an upper lid blepharoplasty. The results are pleasing and seem to be lasting, while the complications have been few and mild. We describe the operation and discuss its indications, contraindications, advantages, and disadvantages.  相似文献   

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Experimental and clinical studies have shown the beneficial effects of triiodothyronine (T3) following myocardial revascularization on cardiopulmonary bypass (CPB). In this study, open-label T3 was administered to 68 high-risk patients undergoing open heart surgery. The New Jersey Risk Assessment was used to calculate the preoperative estimated surgical mortality. A loading dose of T3 was administered: (a) at release of the aortic cross-clamp, (b) whenever the patient became CPB dependent, (c) if the patient exhibited low cardiac output after discontinuing CPB and (d) as pretreatment before initiating CPB. All therapeutic modalities were followed by a continuous T3 infusion. Following T3 therapy, CPB was discontinued in all patients. Based upon discriminant analysis, a total of 26 deaths were expected from the entire group, but only 7 patients died, therefore, the observed mortality was reduced by 72% (p < 0.007). The use of T3 had a major impact on reducing surgical mortality, and may be advocated as a new therapeutic modality in patients with high estimated mortality undergoing open heart surgery.  相似文献   

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Molten metal burns have received relatively little attention in the surgical literature. We performed a retrospective chart review of 150 patients who sustained molten metal burns between 1972 and 1997. The injuries all occurred in male foundry workers, most commonly from molten aluminum (60%). The typical accident was that of a splatter spill, creating a full-thickness burn. The mean burn size was 2.3 per cent of the body surface area (range, 0.25-25%). The lower extremities were the most commonly injured areas (85%), yet 37 per cent of patients had multiple sites burned. Patients were often initially treated nonoperatively and then referred to a surgeon when the wound failed to heal. Hospitalization was necessary in 89 patients at a mean of 16 days after the injury, and 92 patients required an operation, most commonly excision of the wound with skin grafting. The mean length of hospital stay was 11.2 days, and mean absence from work was 72.6 days. Fifty-one patients treated by the burn surgeon within 2 weeks of injury had a mean length of disability significantly shorter than those referred late (53.5 vs. 83.4 days; P < 0.05). We believe that an underestimation of the severity of these burns often leads to a delay in correct therapy and extends disability.  相似文献   

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This article describes an innovative transfer of cancer prevention information from a Comprehensive Cancer Center to the community and school setting. A cancer control curriculum, developmentally and culturally appropriate for middle school, African-American children, was taught to seventh grade students in a public middle school in a large, northeastern city. By building partnerships among a university, an academic medical center, a public school district, and a non-profit arts organization, students learned cancer control concepts in the context of their daily lives. Students increased their knowledge of cancer risk and demonstrated a positive attitude about their ability to affect their own health. Experience with this project enabled staff to identify additional education and support needs that exist among students who have family members with cancer.  相似文献   

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BACKGROUND: The relationship between preoperative pulmonary function tests (PFTs) and postoperative aspiration and deglutition complications in supraglottic laryngectomy (SL) has not been adequately analyzed. The effects of numerous other variables are either controversial or have not been studied. METHODS: A retrospective chart review was performed on 46 SL patients, analyzing preoperative PFTs and arterial blood gases, demographic factors, stage of disease, extended resections, cricopharyngeal myotomy, hyoid preservation, neck dissection, and postoperative radiotherapy with regards to aspiration and deglutition problems. RESULTS: Eighteen (39%) patients had no problems, 15 (33%) had moderate problems, and 13 (28%) had severe problems; of these, 39 (85%) were ultimately successful with no further swallowing dysfunction, whereas seven (15%) suffered intractable aspiration difficulties. Decreasing FEV1/FVC was significantly correlated with a poorer outcome, as was a greater number of pack-years of smoking. The effect of FEV1/FVC was shown to be independent from pack-years, whereas the converse was not clearly demonstrated. Extensions of the standard procedure did not correlate significantly with increased problems. CONCLUSIONS: An FEV1/FVC less than 50% signifies a greater risk for severe aspiration and deglutition complications, although it must be regarded as one factor among many in determining operability. With careful attention to reconstruction, extensions of the standard SL procedure can be safely performed.  相似文献   

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Twenty patients received transduodenal sphincteroplasty and transampullary septectomy between 1987 and 1993. Seven patients had post-cholecystectomy pain which was much improved or abolished in 5 of 7 patients at a mean follow-up of 4 years and 5 months. Four of five patients with chronic pancreatitis were improved at 3 years and 2 months. Three of five patients with recurrent acute pancreatitis were improved at 4 years and 5 months. One of three patients with chronic abdominal pain of hepatobiliary origin was improved at 3 years. Transduodenal sphincteroplasty and transampullary septectomy can relieve pain in patients with post-cholecystectomy pain, recurrent acute pancreatitis, chronic pancreatitis, and chronic abdominal pain of hepatobiliary origin, presumably by improving drainage of the obstructed ducts.  相似文献   

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Since 1983, 90 autologous jejunal transplantations for reconstruction of the upper digestive tract have been performed in 89 patients (9 females, 80 males, average age 56.3 years). 73 patients were operated primarily, in 16 patients a recurrent tumor had been treated. One patient received a second jejunal graft after necrosis. In these heterogenous patients, the primary tumor was located in the hypopharynx 48 times, in the larynx 21 times, in the oropharynx 19 times and twice in the oral cavity. There was nearly always tumor stage III or IV without distant metastases. Following locoregional tumor resection, speech restoration was achieved 35 times by a siphon-like tube, and the upper digestive tract was reconstructed using a patch 18 times and by a tube 28 times. A combination of tube or patch with a siphon-like tube was employed 9 times. In only two of 16 patients with recurrent tumor, speech reconstruction was performed, in the other 14, the upper digestive tract was reconstructed. In those patients, in whom speech reconstruction (by siphon tube or by combination with tube/patch) was intended, this was achieved in 81.5%. Successful functional reconstruction of the upper digestive tract (by patch, tube, combination) could be achieved in about 60% of these patients.  相似文献   

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Between January 1, 1987, and December 31, 1992, 140 community-dwelling geriatric patients > or = 65 years of age with a displaced femoral neck fracture (Garden III-IV) underwent primary prosthetic replacement and were followed prospectively for a minimum of 1 year. Overall, 92 patients received a cemented bipolar prosthesis and 48 patients received a cemented modular unipolar prosthesis. There were no statistically significant differences between the two groups with respect to preinjury characteristics (age, sex, and number and severity of medical comorbidities) and functional ability. There were no statistically significant differences between the two groups with regard to the number of postoperative complications, length of stay, and 1 year mortality rate. An in-depth functional evaluation was obtained as follows: level of ambulation, independence in basic activities of daily living (feeding, bathing, dressing, toileting), and independence in instrumental activities of daily living (food shopping, food preparation, banking, laundry, housework, and use of public transportation). At 1 year follow-up, no statistically significant differences in functional ability were identified between the unipolar and bipolar groups. Furthermore, at a minimum of 1 year follow-up, there were no statistically significant differences between the two groups with regard to the need for revision surgery or the incidence hip pain. Based on the results of this study, there does not appear to be any advantage to the use of bipolar endoprosthesis for the treatment of femoral neck fractures in the elderly patient. The lower cost of modular unipolar prostheses compared with bipolar prostheses provides additional support for their use.  相似文献   

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OBJECTIVE: To investigate the relation between duration of posttraumatic amnesia (PTA) and functional outcome in a traumatically brain injured population. PATIENTS: Two hundred seventy-six patients with traumatic brain injury (TBI) who were admitted to a Level I university trauma center and required inpatient rehabilitation. MEASURES: Duration of PTA was assessed by serial administrations of the Galveston Orientation Amnesia Test (GOAT). Functional Independence Measure (FIM) total scores, FIM cognitive and motor subscores, and Disability Rating Scale (DRS) scores were obtained at admission and discharge from inpatient rehabilitation. RESULTS: Duration of PTA was a significant predictor of all admission and discharge DRS and FIM scores. Duration of PTA and age at the time of injury, in combination, contributed significantly to the prediction of the DRS score and FIM total, cognitive, and motor scores at discharge. CONCLUSION: Duration of PTA appears to be a useful variable in predicting specific functional outcome in the TBI population receiving inpatient rehabilitation services. The use of age as a factor in addition to duration of PTA enhances the prediction of functional outcome.  相似文献   

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We treated 35 patients with primary malignant tumours of the periacetabular area by resection and prosthetic reconstruction of the defect. At a mean follow-up of 84 months, 15 patients (43%) were free from disease. The most common complications were deep infection (26%), local recurrence (24%) and recurrent dislocation of the hip (17%). The surviving patients achieved an average of 70% of their premorbid function. This method of reconstruction has a high morbidity and should be performed only at specialist centres, but the functional and oncological outcomes are satisfactory.  相似文献   

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