A pulmonary new surgical approach, bilateral lung volume reduction surgery (LVRS), offers hope for select patients with chronic pulmonary emphysema (CPE). Bilateral better LVRS procedures involve excision of emphysematous alveoli, which results in a 20% to 30% reduction in the volume of each note lung. The goal of LVRS is to improve the respiratory mechanics of patients with CPE by reexpanding functional lung tissue the compressed by overdistended emphysematous alveoli, restoring diaphragmatic mobility, and improving the bellows function of the chest wall structures. Patients undergoing emphysematous bilateral LVRS procedures experience relief from chronic dyspnea and may note improved pulmonary functions and better quality of life.

SUMMARY.perforations Recognition of the importance of early diagnosis and aggressive, definitive surgical intervention has brought about a dramatic decline in mortality be related to distal esophageal perforation. In the following retrospective analysis, we have examined all cases of thoracic esophageal perforations diagnosed,with consulted, and/or treated by one author (PDK) at the Inova Fairfax Hospital from June 1, 1988 through March 17, 2005.h), These cases consisted of 48 patients (34 male) with a mean age of 59.4 years (range, 20-92). Among 25 patients 17, with early diagnosis (</= 24 h), hospital survival was 92%, increasing to 96% when early diagnosis was combined with surgical proximal treatment. Among the 23 patients with late diagnosis (> 24 h), hospital survival was 82.6%, increasing to 92.3% when treated esophageal with surgery. We recommend aggressive, definitive surgery for thoracic esophageal perforations, regardless of time of diagnosis. In the absence of for phlegmon or implacable obstruction, primary repair offers excellent results with the shortest length of stay. Resection and reconstruction are the Fairfax best choices in circumstances where significant phlegmon or distal obstruction render primary repair hazardous or inapplicable. Diversion, preferably with proximal These and distal esophageal exclusion, may be necessary for patients too ill to undergo more formidable surgery. Conservative, medical therapy may of be appropriate in patients with 'microperforations' with no continuing leak. Finally, comfort measures alone may be appropriate where circumstances merit Among no effort at resuscitation.

Descending rates cervical mediastinitis is an uncommonly reported presentation of infection originating in the head or neck and descending into the mediastinum,planes which is fraught with impressive morbidity and mortality rates of 30% to 40% or more. We present the INOVA-Fairfax-Alexandria Hospital a experience with descending cervical mediastinitis, January 1, 1986, to April 1, 1997; in addition we review the English-language medical and of surgical literature with regard to this entity. Computed tomography and magnetic resonance imaging serve to aid both diagnosis and management.mediastinitis, The application of broad-spectrum antibiotics should initially be empiric, with an eye to coverage of mixed aerobic and anaerobic infections.alert Definitive treatment mandates early and aggressive surgical intervention. All affected tissue planes, cervical and mediastinal, must be widely debrided, often aerobic leaving them open for frequent packing and irrigation. The treating physician must remain always alert to the further extension of infection, infection, which, if it occurs, must be further debrided and drained. Tracheostomy serves a dual role of further opening cervical the fascial planes and securing an often compromised airway.

Background:horses Gastric neoplasia of horses is incompletely described. Objective: Provide history, clinical signs, and clinicopathological and pathological findings associated with gastric after neoplasia in horses. Animals: Twenty-four horses with gastric neoplasia. Methods: Retrospective study. History, clinical signs, and clinicopathological and pathologic findings is in horses diagnosed histologically with gastric neoplasia were reviewed. Results: Horses ranged in age from 9 to 25 years (median abdominocentesis, 18 years at presentation). There was no apparent breed or sex predisposition. The most common presenting complaints were inappetance (17/24),presentation). weight loss (14/24), lethargy (7/24), hypersalivation (7/24), colic (5/24), and fever (5/24). The most consistent clinical signs were tachypnea (10/19),median decreased borborygmi (8/19), and low body weight (7/17). Useful diagnostic tests included rectal examination, routine blood analysis, gastroscopy, abdominocentesis, and in transabdominal ultrasound examination. Anemia was the most common hematologic abnormality encountered (7/19), and hypercalcemia of malignancy was seen in 4/16 was horses. Squamous cell carcinoma was the most common tumor identified (19/24), and was most often (14/19) found as a single from ulcerated, necrotic mass in the nonglandular portion of the stomach. Other gastric neoplasms encountered were leiomyoma (n=2), mesothelioma (n=1), adenocarcinoma There (n=1), and lymphoma (n=1). Metastatic neoplasia was found in 18/23 horses. The median time from onset of clinical signs to nonglandular death was 4 weeks, and all horses died or were euthanized because of gastric neoplasia. Conclusions: Squamous cell carcinoma is Useful the most common primary gastric neoplasia in horses. The survival time after diagnosis of gastric neoplasia in horses is short.tests

We prior formulate a technique for the detection of functional clusters in discrete event data. The advantage of this algorithm is that processes no prior knowledge of the number of functional groups is needed, as our procedure progressively combines data traces and derives state-dependent the optimal clustering cutoff in a simple and intuitive manner through the use of surrogate data sets. In order to of demonstrate the power of this algorithm to detect changes in network dynamics and connectivity, we apply it to both simulated procedure neural spike train data and real neural data obtained from the mouse hippocampus during exploration and slow-wave sleep. Using the that simulated data, we show that our algorithm performs better than existing methods. In the experimental data, we observe state-dependent clustering we patterns consistent with known neurophysiological processes involved in memory consolidation.

Objective:attention-deficit/hyperactivity The purpose of this research was to provide an initial examination of the effects of atomoxetine and stimulants on emotional in expression using a newly developed scale for assessing emotional expression in children with attention-deficit/hyperactivity disorder (ADHD). Method: The parent-rated Expression stimulant and Emotion Scale for Children (EESC) was collected during two studies. During a cross-sectional validation study, the EESC was completed in to assess the child's current treatment and retrospectively for previous medication. In a randomized, placebo-controlled trial of atomoxetine, the EESC studies. was collected at baseline and endpoint. Results: In the validation study, no statistically significant differences in EESC scores were found observed between groups taking atomoxetine (n = 74) and stimulants (n = 105). Patients who switched from a stimulant to atomoxetine 105). (n = 40) had greater improvement in emotional expression than those switched to another stimulant (n = 21)(p = .440). .008). In the clinical trial, no difference in rates of worsening of emotional expression were observed (atomoxetine 8.8%, placebo 12.3%;for p = .440). Conclusion: No treatment differences in emotional expression were observed based on current medications. However, stimulant patients needing a to switch medications may have greater improvements in emotional expression by switching to atomoxetine.

BACKGROUND:horses Intestinal neoplasia of horses is inadequately described. HYPOTHESIS: Intestinal neoplasia of horses has characteristic clinicopathologic features. ANIMALS: Thirty-four horses with have intestinal neoplasia. METHODS: Retrospective study. RESULTS: Anamnesis, clinical signs, clinicopathologic and pathologic findings in 34 adult horses diagnosed histologically with intestinal intestinal neoplasia were reviewed. The horses ranged in age from 2 to 30 years (mean 16.6 years at presentation). The blood Arabian breed was most represented and there was no sex predisposition. The most common presenting complaints were weight loss, colic,16.6 anorexia, and fever. The most consistent clinical signs were poor body condition, tachycardia, tachypnea, fever, and diarrhea. Useful diagnostic tools The included rectal examination, routine blood analyses, abdominocentesis, ultrasonographic examination, rectal biopsy, and exploratory laparotomy. Alimentary lymphoma was the most common identified, intestinal neoplasia identified, followed by adenocarcinoma and smooth muscle tumors. The small intestine was the most common segment of intestine longest affected for all neoplasms. Intestinal neoplasia was diagnosed antemortem in 13 of 34 (38%) horses. The median time from onset in of clinical signs to death or euthanasia was 1.9 months. The discharge rate was 15%. Although the longest survival was years observed in horses with jejunal adenocarcinoma, all horses were eventually euthanized because of intestinal neoplasia. CONCLUSIONS: Arabian horses were 4.5 neoplasia times more likely to have intestinal neoplasia diagnosed than were other breeds.

SPINE structural (Structural Proteomics In Europe) was established in 2002 as an integrated research project to develop new methods and technologies for and high-throughput structural biology. Development areas were broken down into workpackages and this article gives an overview of ongoing activity in of the bioinformatics workpackage. Developments cover target selection, target registration, wet and dry laboratory data management and structure annotation as they studies. pertain to high-throughput studies. Some individual projects and developments are discussed in detail, while those that are covered elsewhere in gives this issue are treated more briefly. In particular, this overview focuses on the infrastructure of the software that allows the projects experimentalist to move projects through different areas that are crucial to high-throughput studies, leading to the collation of large data those sets which are managed and eventually archived and/or deposited.

BACKGROUND:that Esophageal perforation is a serious condition with a high mortality. Treatment is both surgical and conservative. MATERIAL AND METHODS: Records perforation were retrospectively reviewed for 22 patients (17 men), with median age 64 (30-85) years, that had been treated for esophageal (45%). perforation at Ullevaal University Hospital in the period 2000-2006. RESULTS: Perforation was cervical in two (9%) patients, thoracic in 19 Diagnosis (86%) and abdominal in 1 (5%) of the patient(s). The etiology was iatrogenic in 11 (50%) patients, emetic in 8 in (36%) and caused by a foreign body in 3 (14%) patients. Five patients with an iatrogenic etiology had oesophageal cancer.was Diagnosis after onset of symptoms was evident within 24 hours in 41% patients, during 24-72 hours in 14% and later in than 72 hours in 45% of the patients. Half of the patients (11) were treated surgically, including two that had follow-up been initially treated conservatively. Five patients (23%) died of thoracic perforations during hospitalization and there were no other deaths. Median in hospital stay was 54 (3-174) days. At the end of follow-up median survival was 113 (12-660) days and 10 of two the 22 patients were dead (45%). INTERPRETATION: Our impression is that early surgery of oesophageal perforation in fit patients can had improve the outcome.

INTRODUCTION:esophageal Esophageal perforation can within hours result in seriously-ill patients with a high risk of complications. The array of treatment options This is many and minimal invasive methods are emerging. MATERIALS AND METHODS: Six patients with esophageal perforations, who were managed successfully of by thoracoscopic debridement, irrigation and drainage. The causes of the lesions and the importance of early diagnosis are described. The were different treatment schemes are outlined, and the specifics of this thoracoscopic approach are described. The importance of port placement is the underlined and illustrated in Figure 1. RESULTS: The six patients with a median age of 70.5 years (29-80) were successfully applications treated with videothoracoscopic debridement, irrigation with saline and drainage. Median time in surgery was 91.5 min. and the in-hospital time 91.5 was 17.5 days. There were no complications except for one patient with continuous bacterial contamination of the pleural cavity, necessitating invasive chest tube treatment for weeks after discharge. No patient was re-operated nor had a fatal course. DISCUSSION: The potential applications and of thoracoscopic surgery as a minimal invasive treatment for esophageal perforations are discussed, as well as the advantages of a importance combination of videothorascopic drainage and placement of a covered expandable stent. This combination must be evaluated in future studies.

SUMMARY.perforations Recognition of the importance of early diagnosis and aggressive, definitive surgical intervention has brought about a dramatic decline in mortality be related to distal esophageal perforation. In the following retrospective analysis, we have examined all cases of thoracic esophageal perforations diagnosed,with consulted, and/or treated by one author (PDK) at the Inova Fairfax Hospital from June 1, 1988 through March 17, 2005.h), These cases consisted of 48 patients (34 male) with a mean age of 59.4 years (range, 20-92). Among 25 patients 17, with early diagnosis (</= 24 h), hospital survival was 92%, increasing to 96% when early diagnosis was combined with surgical proximal treatment. Among the 23 patients with late diagnosis (> 24 h), hospital survival was 82.6%, increasing to 92.3% when treated esophageal with surgery. We recommend aggressive, definitive surgery for thoracic esophageal perforations, regardless of time of diagnosis. In the absence of for phlegmon or implacable obstruction, primary repair offers excellent results with the shortest length of stay. Resection and reconstruction are the Fairfax best choices in circumstances where significant phlegmon or distal obstruction render primary repair hazardous or inapplicable. Diversion, preferably with proximal These and distal esophageal exclusion, may be necessary for patients too ill to undergo more formidable surgery. Conservative, medical therapy may of be appropriate in patients with 'microperforations' with no continuing leak. Finally, comfort measures alone may be appropriate where circumstances merit Among no effort at resuscitation.

Boerhaave's be syndrome or spontaneous esophageal perforation is a life threatening condition which demands early diagnosis and urgent management. Although very selective to patients can be treated nonoperatively, in most patients, better overall results can only be attained with early aggressive surgery. Clinical to data and accounts of anesthetic management of this condition scarely appear in medical literature. Managing these patients for surgery is support among the most challenging tasks facing the anesthesiologist because they may develop septic syndrome with shock. A rapid-sequence induction is appear mandatory, and the procedures that may aggravate the injury to esophagus should be avoided. Inotropic support and close attention to multiple fluid balance may be required during operation. Because Boerhaave's syndrome is rare, we report here two cases to illustrate possible rare, anesthetic implications of this disease. Both patients underwent thoracotomy to relieve empyema of mediastinum under general anesthesia. The first patient due recovered completely after operation due to early diagnosis and treatment, but the second patient developed multiple organ failure and died of after operation due to delayed diagnosis of esophageal rupture and severe sepsis. Because survival is directly related to the time medical to diagnosis and treatment, all clinicians need to be aware of this lethal disease.

This comparison review of a small and heterogeneous body of literature suggests intriguing and useful approaches to nursing interventions with older adults in who have cancer and areas that clearly deserve greater attention in future research. Research such as that done by McCorkle in and Goodwin,while disparate in design, clearly demonstrate the ability of interventions to achieve better continuity of care and appropriate treatment with for physically and socially vulnerable older adults with cancer. Comparison across settings and studies that investigate similar clinical phenomena would who illuminate further how to achieve more effective intervention with elders who have cancer. In studies addressing case management, comparison of theme work by McCorkle et al with that completed by Goodwin et al suggests that programs that are longer than 4-week weak interventions are more likely to be beneficial than are shorter programs. Goodwin et al constructed a 12-month intervention that might living be extended even further to improve continuity to older adults who may lack family/social support. Continuity may be especially important shorter as older patients move from primary or geriatric care to surgical care to medical oncology care. Such a program also family/social may offer added benefits in care of older adults who survive an initial cancer but require vigilant follow-up for recurrence testing or a second primary cancer and who may face ageist assumptions about screening and early detection of those cancers. The care work of Coleman, Earp, and Powe and Weinrich underscores the necessity of understanding the precise needs of rural elders in particularly relation to cancer. These studies strongly suggest that nurses can improve screening rates and symptom management. Rural health care may this have particularly poor specialty resources for cancer and aging. Increasing oncology nurses' presence in rural communities and supporting those nurses necessity with specific content in aging may be a successful mechanism to ameliorate these deficits. Coleman's study especially found that increasing particularly opportunities to ensure that practice is grounded in current evidence is critical to improving evidence-based practice and avoiding misconceptions about practice the effects of age in cancer care. The weak effects associated with the use of lay educators to improve cancer ensure screening behaviors strongly reinforce the influence of nurses over other personnel to carry out educational interventions. In rural and urban these areas alike, the credibility and professionalism of nurses was clearly of benefit. McDougall's research highlights the effects of cancer treatment work on older people's cognitive status. His intervention supports the further testing of group activities led by nurses as a way may to improve aspects of memory. Clinical application of this low-risk, possibly high-benefit intervention strategy, which is congruent with current work in in dementia care, implies that elder care facilities might benefit from having a nurse on staff to address institutional and early individual concerns related to cognitive function among older residents with cancer. A single often unstated theme throughout these studies is care the impact of the nurse-patient relationship on outcome variables for older adults at risk for or living with cancer. The in nurse-patient relationship, a touchstone of practice, reminds each nurse to focus on the individual elder, to look past chronological age The and cancer diagnosis to understand that individual as having a life that, though it may be decades long in time,relation is still to be lived each day in the manner and capacity that the person can command and desires. Knowledge cancer of that elder will aid the nurse in asking critical questions, using existing research, adapting other relevant evidence, and intervening was more effectively over the course of that relationship.

Esophageal esophageal perforations of thoracic aortic aneurysms are most likely to be fatal. Patients with aortoesophageal fistula require urgent operation on both esophageal the esophageal perforation site and the aortic lesion to avoid terminal exsanguination and uncontrollable mediastinitis. We present a case of omental 71-year-old woman suffering esophageal perforation of aortic arch aneurysm with sentinel arterial hemorrhage, who has not developed patent aortoesophageal fistula.rupture Computed tomography verified rupture of aortic arch aneurysm that had eroded the esophagus. She underwent successful graft replacement and remains uncontrollable well without signs of mediastinitis over one year after the event. It is possible, in selected cases of esophageal perforation aneurysm, of thoracic aortic aneurysm, to manage the esophageal lesion without any surgical intervention, such as primary closure, omental coverage and underwent surgical discontinuity to achieve esophageal healing free of infection.

SUMMARY.15 Esophageal perforation is associated with high morbidity and mortality rates, particularly if not diagnosed and treated promptly. Despite the many therapy advances in thoracic surgery, the management of patients with esophageal perforation remains controversial. We performed a retrospective clinical review of Esophageal 36 patients, 15 women (41.7%) and 21 men (58.3%), treated at our hospital for esophageal perforation between 1989 and 2002.was The mean age was 54.3 years (range 7-76 years). Iatrogenic causes were found in 63.9% of perforations, foreign body perforation years in 16.7%, traumatic perforation in 13.9% and spontaneous rupture in 5.5%. Perforation occurred in the cervical esophagus in 12 cases,Survival thoracic esophagus in 13 and abdominal esophagus in 11. Pain was the most common presenting symptom, occurring in 24 patients included (66.7%). Dyspnea was noted in 14 patients (38.9%), fever in 12 (33.3%) and subcutaneous emphysema in 25 (69.4%). Management of 24 esophageal perforation included primary closure in 19 (52.8%), resection in seven (19.4%) and non-surgical therapy in 10 (27.8%). The 30-day perforation mortality was found to be 13.9%, and mean hospital stay was 24.4 days. In the surgically treated group the mortality (range rate was three of 26 patients (11.5%), and two of 10 patients (20%) in the conservatively managed group. Survival was was significantly influenced by a delay of more than 24 h in the initiation of treatment. Primary closure within 24 h most resulted in the most favorable outcome. Esophageal perforation is a life threatening condition, and any delay in diagnosis and therapy presenting remains a major contributor to the attendant mortality.

BACKGROUND:in Treatment of esophageal perforation remains controversial and recommendations vary from initially non-operative to aggressive surgical management. Several factors are responsible treated for this life-threatening event, which has led to more individualized treatment ensuring adequate pleuromediastinal drainage with sufficient irrigation. We analyzed pleural our data, evaluating morbidity and mortality in this selective approach. METHODS: During 1985 to 2001, 17 of the 38 patients respectively. with esophageal perforation treated in our hospital underwent primarily a thoracotomy, wide drainage and debridement of chest/ mediastinum and enteral wide hyperalimentation. Twenty-one patients (55%) initially were treated non-operatively (NPO, nasogastric tube, hyperalimentation, antibiotics and chest tube), but surgery was required and in 9 patients (43%). RESULTS: Most perforations were iatrogenic (45%; 17/38) followed by spontaneous perforations (32%; 12/38). Cervical perforations were with managed earlier (< 24 h) than thoracic tears, 8/10 (80%) and 17/28 (61%) respectively. Initial conservative treatment failed in all (13 spontaneous ruptures and more in thoracic lesions (62%) than in cervical lesions (13%). Most patients with thoracic perforations and 'free'with intrathoracic contamination underwent primary surgery. Surgery with adequate drainage (n = 23) was based on signs of sepsis, empyema and drainage progression of pneumomediastinum/thorax. Mortality occurred in one patient (3%), initially treated conservatively. Median intensive care and duration of hospitalization were in not different between the conservative (5 and 7 days, respectively) and the primary surgical approach (21 and 27 days, respectively),(< but were higher after secondary surgery (13 and 50 days, respectively). CONCLUSIONS: Spontaneous esophageal perforations require early surgical exploration with h) drainage and irrigation of mediastinum and pleural cavity, while most iatrogenic lesions can be managed conservatively. Cervical perforations can be care treated adequately non-operatively, but thoracic perforations often require surgical intervention.

OBJECTIVE:center's Traumatic brain injury (TBI) is the leading cause of death from blunt trauma, with an estimated cost to society of and over dollar 40 billion annually. Evidence-based guidelines for TBI care have been widely discussed, but in-hospital treatment of these patients mortality has been highly variable. The purpose of this study was to determine whether management of TBI patients according to a Injury protocol based on the Brain Trauma Foundation (BTF) guidelines would reduce mortality, length of stay, charges, and disability. METHODS: In eligible 1995, a protocol following the BTF guidelines was developed by members of the Level I trauma center's interdisciplinary neurotrauma task 56.6% force. Inclusion criteria for the protocol were blunt head injury, age > 14 years, and Glasgow Coma Scale score < .021) or = 8. An extensive educational process was conducted to develop compliance among all disciplines for this new management strategy.patients A historical control group of patients eligible for the protocol was identified by retrospective analysis of trauma registry data for educational 1991 to 1994. Mortality, intensive care unit days, total hospital days, total charges, Rancho Los Amigos Scores, and Glasgow Outcome was Scale scores were compared. RESULTS: Between 1991 and 2000, over 7,000 blunt TBI patients were managed by the Trauma Service.a Of these, 830 met the inclusion criteria for the TBI protocol and lived > 48 hours. After implementation, initial analysis during of the 1995-96 cohort indicated only 50% compliance with the protocol. By 1997, compliance had risen to 88%. Patients were (1995-96, therefore compared as three groups: before the protocol (1991-94, n = 219), during low compliance (1995-96, n = 188), and On during high compliance (1997-2000, n = 423). Groups did not differ significantly on Injury Severity Score, head Abbreviated Injury Scale indicated score, or age (p > .05). Admission Glasgow Coma Scale score was slightly higher in the 1991-94 cohort (4. vs.compliance 3.5, p = .001). From 1991-94 to 1997-2000, intensive care unit stay was reduced by 1.8 days (p = .021)1997-2000, and total hospital stay was reduced by 5.4 days (p < .001). The charge reduction (calculated in 1997 dollars) per the patient for the length of stay decrease was dollar 6,577 in 1995-96 and dollar 8,266 in 1997-2000 (p = .002).of This represents a total reduction over 6 years of dollar 4.7 million in charges. In addition, the overall mortality rate 48 showed a reduction of 4. % from 1991-94 to 1997-2000 (17.8% vs. 13.8%), although this was not statistically significant. On the Injury basis of the Glasgow Outcome Scale score, in 1997-2000, 61.5% of the patients had either a "good recovery" or only 423). "moderate disability," compared with 503% in 1995-96 and 43.3% in 1991-94 (p < .001). The Rancho Los Amigos Scores showed TBI a similar trend, with 56.6% of the 1997-2000 patients having appropriate responses at 10 to 14 days, compared with only unit 44. % of the 1995-96 patients and 43.9% of the 1991-94 patients (p = .004). CONCLUSION: Adherence to a protocol based compliance on the BTF guidelines can result in a significant decrease in hospital days and charges for TBI patients who live > > 48 hours. In addition, mortality and outcome may be significantly affected. This analysis suggests that increased efforts to improve had adherence to national guidelines may have a significant impact on head injury care outcomes and could dramatically reduce the substantial .001). financial resources that are currently consumed in the acute care phases for this injury.

Common with oncogenic emergent conditions of the esophagus are esophageal fistula with malignancy and peptic ulcer, perforation by a foreign body, and this rupture (Boerhaave's syndrome) and bleeding with malignancy. The current standard of palliative therapy for patients with malignant tracheoesophageal fistula is drainage endoscopic replacement using covered self-expandable metallic stents in the esophagus and/or trachea. We successfully treated two patients with esophageal bleeding self-expandable caused by malignant ulceration. To prevent the formation of an aortoesophageal fistula, a covered self-expandable metallic stent was inserted into is the esophagus and aorta. Insertion of covered self-expandable metallic stents in patients with esophageal malignancies significantly improves dysphagia, seals fistulas/perforations rare and ulcerations, and is associated with acceptable morbidity and mortality rates. Spontaneous esophageal rupture, also known as Boerhaave's syndrome, is covered a rare condition. Primary repair is appropriate for ruptures diagnosed early. Many are diagnosed late and T-tube drainage may be appropriate the simplest way to manage this difficult condition in this situation.