657 research outputs found

    Weird Fiction: An Exhibition of Paintings

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    Each painting in this exhibition is a transformed documentation of a specific experience culled from my daily, ordinary life. These encounters are not monumental; however their impact is significant because of their disturbing, disgusting, puzzling and humourously entertaining qualities. The awkwardness and resulting ambiguity of my imagery is defined through connections to the uncanny, the surreal, the grotesque and the literary genre of tragicomedy. The work also acknowledges a strong relationship to historic traditions within painting and aspires to use comedy to provide an opportunity for viewers to retrieve and recreate a moment of personal history

    Adaptation and acclimatization to ocean acidification in marine ectotherms: an in situ transplant experiment with polychaetes at a shallow COâ‚‚ vent system

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    Metabolic rate determines the physiological and life-history performances of ectotherms. Thus, the extent to which such rates are sensitive and plastic to environmental perturbation is central to an organism's ability to function in a changing environment. Little is known of long-term metabolic plasticity and potential for metabolic adaptation in marine ectotherms exposed to elevated pCOâ‚‚. Consequently, we carried out a series of in situ transplant experiments using a number of tolerant and sensitive polychaete species living around a natural COâ‚‚ vent system. Here, we show that a marine metazoan (i.e. Platynereis dumerilii) was able to adapt to chronic and elevated levels of pCOâ‚‚. The vent population of P. dumerilii was physiologically and genetically different from nearby populations that experience low pCOâ‚‚, as well as smaller in body size. By contrast, different populations of Amphiglena mediterranea showed marked physiological plasticity indicating that adaptation or acclimatization are both viable strategies for the successful colonization of elevated pCOâ‚‚ environments. In addition, sensitive species showed either a reduced or increased metabolism when exposed acutely to elevated pCOâ‚‚. Our findings may help explain, from a metabolic perspective, the occurrence of past mass extinction, as well as shed light on alternative pathways of resilience in species facing ongoing ocean acidification

    Head Lice in Norwegian Households: Actions Taken, Costs and Knowledge

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    Introduction: Head lice infestations cause distress in many families. A well-founded strategy to reduce head lice prevalence must shorten the infectious period of individual hosts. To develop such a strategy, information about the actions taken (inspection, treatment and informing others about own infestations), level of knowledge and costs is needed. The present study is the first to consider all these elements combined. Materials and Methods: A questionnaire was answered by 6203 households from five geographically separate

    Comparative Inpatient Resource Utilization for Patients Undergoing Endoscopic or Microscopic Transsphenoidal Surgery for Pituitary Lesions: Clinical Article

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    Object. An increasingly important measure in the health care field is utilization of hospital resources, particularly in the context of emerging surgical techniques. Despite the recent widespread adoption of the endoscopic transsphenoidal approach for pituitary lesion surgery, the health care resources utilized with this approach have not been compared with those utilized with the traditional microscopic approach. The purpose of this study was to determine the drivers of resource utilization by comparing hospital charges for patients with pituitary tumors who had undergone either endoscopic or microscopic transsphenoidal surgery. Methods. A complete accounting of all hospital charges for 166 patients prospectively enrolled in a surgical quality-of-life study at a single pituitary center during October 2011-June 2013 was undertaken. Patients were assigned to surgical technique group according to surgeon preference and then managed according to a standard postoperative institutional set of orders. Individual line-item charges were assigned to categories (such as pharmacy, imaging, surgical, laboratory, room, pathology, and recovery unit), and univariate and multivariate statistical analyses were conducted. Results. Of the 166 patients, 99 underwent microscopic surgery and 67 underwent endoscopic surgery. Baseline demographic descriptors and tumor characteristics did not differ significantly. Mean total hospital charges were 74,703A^±74,703 ± 15,142 and 72,311A^±72,311 ± 16,576 for microscopic and endoscopic surgery patients, respectively (p = 0.33). Furthermore, other than for pathology, charge categories did not differ significantly between groups. A 2-step multivariate regression model revealed that length of stay was the most influential variable, followed by a diagnosis of Cushing\u27s disease, and then by endoscopic surgical technique. The model accounts for 42% of the variance in hospital charges. Conclusions. Study findings suggest that adoption of the endoscopic transsphenoidal technique for pituitary lesions does not adversely affect utilization of resources for inpatients. The primary drivers of hospital charges, in order of importance, were length of stay, a diagnosis of Cushing\u27s disease, and, to a lesser extent, use of the endoscopic technique. This study also highlights the influence of individual surgeon practice patterns on resource utilization. ©AANS, 2014

    Resumption of Positive-Pressure Ventilation Devices for Obstructive Sleep Apnea following Transsphenoidal Surgery: An Institutional Experience of a Surgical Cohort.

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    Objectives  Transsphenoidal surgery creates a skull base defect that may cause postoperative cerebrospinal fluid (CSF) leakage or pneumocephalus. This study reviewed the institutional experience of a pituitary center in managing patients who use positive-pressure ventilation (PPV) devices for obstructive sleep apnea (OSA) after transsphenoidal surgery, which risks disturbing the skull base repair. Design  Retrospective review. Setting  Pituitary referral center in a major metropolitan medical center. Methods  PPV was resumed at the discretion of the treatment team based on intraoperative findings and OSA severity. Perioperative complications related to resuming and withholding PPV were recorded. Participants  Transsphenoidal surgery patients with OSA using PPV devices. Main Outcome Measures  Intracranial complications before and after resuming PPV. Results  A total of 42 patients met the study criteria. Intraoperative CSF leakage was encountered and repaired in 20 (48%) patients. Overall, 38 patients resumed PPV (median: 3.5 weeks postsurgery; range: 0.14–52 weeks) and 4 patients did not resume PPV. Postoperatively, no patient experienced CSF leakage or pneumocephalus before or after resuming PPV. Four (10%) patients required temporary nocturnal supplemental oxygen at home, one patient was reintubated after a myocardial infarction, and one patient had a prolonged hospital stay due to chronic obstructive pulmonary disease exacerbation. Conclusions  Resuming PPV use after transsphenoidal surgery did not result in intracranial complications. However, delay in resuming PPV resulted in four patients requiring oxygen at home. We propose a preliminary PPV device management algorithm based on the size of the intraoperative CSF leak to facilitate future studies

    Randomized Double-Blinded Placebo-Controlled Trial Comparing Two Multimodal Opioid-Minimizing Pain Management Regimens Following Transsphenoidal Surgery

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    OBJECTIVE: Pain control is an important clinical consideration and quality-of-care metric. No studies have examined postoperative pain control following transsphenoidal surgery for pituitary lesions. The study goals were to 1) report postoperative pain scores following transsphenoidal surgery, 2) determine if multimodal opioid-minimizing pain regimens yielded satisfactory postoperative pain control, and 3) determine if intravenous (IV) ibuprofen improved postoperative pain scores and reduced opioid use compared with placebo. METHODS: This study was a single-center, randomized, double-blinded, placebo-controlled intervention trial involving adult patients with planned transsphenoidal surgery for pituitary tumors randomized into 2 groups. Group 1 patients were treated with scheduled IV ibuprofen, scheduled oral acetaminophen, and rescue opioids. Group 2 patients were treated with IV placebo, scheduled oral acetaminophen, and rescue opioids. The primary end point was patient pain scores (visual analog scale [VAS], rated 0-10) for 48 hours after surgery. The secondary end point was opioid use as estimated by oral morphine equivalents (OMEs). RESULTS: Of 136 patients screened, 62 were enrolled (28 in Group 1, 34 in Group 2). The study was terminated early because the primary and secondary end points were reached. Baseline characteristics between groups were well matched except for age (Group 1, 59.3 ± 14.4 years; Group 2, 49.8 ± 16.2 years; p = 0.02). Mean VAS pain scores were significantly different, with a 43% reduction in Group 1 (1.7 ± 2.2) compared with Group 2 (3.0 ± 2.8; p \u3c 0.0001). Opioid use was significantly different, with a 58% reduction in Group 1 (26.3 ± 28.7 mg OME) compared with Group 2 (62.5 ± 63.8 mg OME; p \u3c 0.0001). CONCLUSIONS: Multimodal opioid-minimizing pain-management protocols resulted in acceptable pain control following transsphenoidal surgery. IV ibuprofen resulted in significantly improved pain scores and significantly decreased opioid use compared with placebo. Postoperative multimodal pain management, including a nonsteroidal antiinflammatory medication, should be considered after surgery to improve patient comfort and to limit opioid use

    Oral Health, Ventilator-Associated Pneumonia, and Intracranial Pressure in Intubated Patients in a Neuroscience Intensive Care Unit.

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    Background Although oral health affects systemic health, studies of oral health during intubation among critically ill neuroscience patients are lacking. Furthermore, the effect of oral care on intracranial pressure among critically ill patients in a neuroscience intensive care unit is unknown. Objectives To describe changes in oral health and development of ventilator-associated pneumonia during intubation among patients in a neuroscience intensive care unit and to assess the influence of oral care on intracranial pressure. Methods Data on 45 consecutive intubated patients admitted to a neuroscience intensive care unit during 1 year were collected by using oral cultures and the Oral Assessment Guide throughout intubation and 48 hours after extubation. Occurrence of ventilator-associated pneumonia and intracranial pressures associated with oral care were recorded. Results Oral health, assessed by the Oral Assessment Guide, deteriorated significantly during intubation and improved to almost baseline levels 48 hours after extubation. During intubation, occurrence of oral gram-negative bacteria and yeast increased. The incidence of ventilator-associated pneumonia was 24% among patients enrolled for 4 to 10 days. During or after 879 instances of oral care, overall intracranial pressure did not increase. Among 30 instances in which intracranial pressure was greater than 20 mm Hg before oral care, pressure decreased during and 30 minutes after the procedure (P < .001). Conclusions Intubation may contribute to worsening of oral health among patients in neuroscience intensive care units. Execution of oral care does not seem to affect intracranial pressure adversely. Oral care should be explored further to promote good oral and systemic health in patients in neuroscience intensive care units and to determine its effect on ventilator-associated pneumonia

    Comparison of two antibiotic-impregnated ventricular catheters: a prospective sequential series trial.

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    BACKGROUND: External ventricular drains (EVDs) are valuable adjuncts in the management of neurosurgical patients but are associated with a significant risk of cerebrospinal fluid (CSF) infection (range, 0% to 27%); a review of 23 studies reported a mean of 8.8%. OBJECTIVE: To compare the efficacy of 2 different antibiotic-impregnated EVD catheters in preventing CSF infections. METHODS: Patients were prospectively enrolled in an Institutional Review Board-approved study. During alternating 3-month periods, all patients received either a minocycline/rifampin-impregnated (M/R) ventricular catheter or a clindamycin/rifampin-impregnated (C/R) EVD catheter. CSF cultures were collected at the time of insertion and twice weekly. Positive cultures were defined a priori as growth of the same bacteria on 2 media (eg, blood agar and broth) or 2 cultures of the same bacteria on 1 medium (eg, broth). RESULTS: Altogether, 129 patients (mean age, 58.4 years; 55 male) received 65 C/R catheters and 64 M/R catheters. The most common indications for EVD placement were aneurysmal subarachnoid hemorrhage (48.1%), spontaneous intraparenchymal hemorrhage (13.2%), and tumor (11.6%). The mean duration of ventriculostomy drainage was 11.8 and 12.7 days in the C/R and M/R groups, respectively. No positive CSF cultures were identified in either cohort. CONCLUSIONS: The use of antibiotic-impregnated catheters was associated with an extremely low risk of CSF infection compared with the reported mean of nearly 9% for standard EVD catheters. Infection rates for both C/R and M/R EVD catheters were zero. These results support the use of antibiotic-impregnated EVD catheters in routine clinical practice

    Intubated Patients in a Neuroscience Intensive Care Unit Oral Health, Ventilator-Associated Pneumonia, and Intracranial Pressure in Email alerts

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    Background Although oral health affects systemic health, studies of oral health during intubation among critically ill neuroscience patients are lacking. Furthermore, the effect of oral care on intracranial pressure among critically ill patients in a neuroscience intensive care unit is unknown. Objectives To describe changes in oral health and development of ventilatorassociated pneumonia during intubation among patients in a neuroscience intensive care unit and to assess the influence of oral care on intracranial pressure. Methods Data on 45 consecutive intubated patients admitted to a neuroscience intensive care unit during 1 year were collected by using oral cultures and the Oral Assessment Guide throughout intubation and 48 hours after extubation. Occurrence of ventilator-associated pneumonia and intracranial pressures associated with oral care were recorded. Results Oral health, assessed by the Oral Assessment Guide, deteriorated significantly during intubation and improved to almost baseline levels 48 hours after extubation. During intubation, occurrence of oral gram-negative bacteria and yeast increased. The incidence of ventilator-associated pneumonia was 24% among patients enrolled for 4 to 10 days. During or after 879 instances of oral care, overall intracranial pressure did not increase. Among 30 instances in which intracranial pressure was greater than 20 mm Hg before oral care, pressure decreased during and 30 minutes after the procedure (P &lt; .001). Conclusions Intubation may contribute to worsening of oral health among patients in neuroscience intensive care units. Execution of oral care does not seem to affect intracranial pressure adversely. Oral care should be explored further to promote good oral and systemic health in patients in neuroscience intensive care units and to determine its effect on ventilator-associated pneumonia
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