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排序方式: 共有630条查询结果,搜索用时 15 毫秒
1.
Regan E. Giesinger Adrianne R. Bischoff Patrick J. McNamara 《Congenital heart disease》2019,14(2):311-316
Ligation of a hemodynamically significant ductus arteriosus results in significant changes in loading conditions which have predictable consequences. Postligation cardiac syndrome, defined as hypotension requiring inotropic support and failure of oxygenation and ventilation, may occur 6‐12 hours following ligation due to left ventricular systolic and diastolic failure, respectively. Afterload is the primary driver of this decompensation. In this review, we describe the pathophysiological changes in loading conditions associated with postligation cardiac syndrome and other contributors to cardiovascular dysfunction following ductal ligation. We present strategies for perioperative optimization and a physiology‐based algorithm for postoperative management guided by targeted neonatal echocardiography. The use of these strategies to reduce the frequency of postligation deterioration may be an avenue to improve outcomes for neonates in this vulnerable patient population. 相似文献
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Jacobo E. Mintzer M.D. Mark P. Rubert Ph.D. David Loewenstein Ph.D. Edgardo Gamez M.D. Agustin Millor L.C.S.W. Rocio Quinteros M.S. Linda Flores M.D. Meridith Miller R.N. Ph.D. Adrianne Rainerman Carl Eisdorfer Ph.D. M.D. 《Community mental health journal》1992,28(4):293-303
This study assessed Cuban-American Hispanic and White non-Hispanic daughters who were major caregivers for their mothers suffering from Alzheimer's Disease. Although patients in both ethnic groups did not differ in their level of cognitive and functional impairment, Cuban-American Hispanic patients were significantly more likely to be living in their daughters' homes while the White non-Hispanic patients resided in institutional settings. Caregivers were equivalent in their knowledge and utilization of community services, but Cuban-American daughters were significantly more aware of financial aid resources. Cuban-American patients were significantly more depressed than their White non-Hispanic counterparts with daughters showing similar but nonsignificant trends. The impact of cultural factors on caregiving is discussed. 相似文献
3.
Effects of a brisk walk on lipoprotein lipase activity and plasma triglyceride concentrations in the fasted and postprandial states 总被引:3,自引:0,他引:3
This study aimed to determine whether changes in plasma heparin-releasable lipoprotein lipase (LPL) activity following a brisk
walk were associated with decreases in fasting and/or postprandial triglyceride (TG) concentrations. Two groups of pre-menopausal
women participated. In one group (fasting study group, n=10), TG concentrations and post-heparin plasma LPL activity were measured in the fasted state on two occasions: ~18 h after
a 2-h treadmill walk at 50% maximal oxygen uptake (exercise trial); and after a day of no exercise (control trial). The other
group (postprandial study group, n=9) undertook two oral fat tolerance tests (blood samples taken fasting and for 6 h after a high-fat meal), with plasma LPL
activity measured 6 h after meal ingestion. Pre-conditions were the same as for the fasting study group (i.e. control and
prior exercise). Prior exercise reduced fasting TG concentrations by 23 (7)% (fasting study group) [mean (SEM)] and by 18
(9)% (postprandial study group) (both P<0.05), and the postprandial TG response by 23 (6)% (postprandial study group) (P<0.01). Plasma LPL activity was not significantly increased by exercise in either the fasting or postprandial study groups.
However, exercise-induced changes in both fasting and postprandial LPL activity were significantly correlated with the respective
exercise-induced changes in fasting TG concentration and the postprandial TG response (r=−0.70 and −0.77 respectively, P<0.05 for both). These data suggest that increased LPL activity may contribute to the hypotriglyceridaemic effect of moderate
exercise, although other mechanisms are also likely to be involved.
Electronic Publication 相似文献
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W. Rau W. Eichelkraut A. Rasche 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》1986,367(2):139-145
Zusammenfassung Der Einfluß von Pentagastrin auf die Durchblutung des Hundemagens wurde mit 9-Mikrosphären untersucht. Schon 6 min nach dem Beginn der Pentagastrin-Infusion nimmt bei nüchternen Tieren der Fluß in allen Magenarealen zu. Mißt man die Änderung der Durchblutung zwei Stunden postprandial, so findet sich ein Durchblutungsanstieg lediglich im Bereich der Corpusmucosa, während die Antrummucosadurchblutung unter den Ausgangswert abfällt. Dieses intragastrale Steal-Phänomen findet auf der Ebene des submucösen Plexus statt.
Experimental conditions for the reproduction of a submucous steal-phenomenon in the dog stomach
Summary The influence of pentagastrin on gastric blood flow has been investigated using 9-microspheres in dogs. As soon as 6 min after the onset of a pentagastrin infusion blood flow rises in all gastric probes in fasted animals. In dogs, fed two hours previously, such a response can only be seen in the corpus-mucosa areas. Blood flow in the antrum mucosa specimen falls beneath its initial value. This gastric steal-phenomenon takes place at the level of the submucous plexus, as has been shown earlier.相似文献
6.
Shannon Mendez Jamie Kubota Adrianne M. Widaman John Gieng 《Journal of nutrition education and behavior》2021,53(7):608-613
ObjectiveTo evaluate the effects of a group-based Advance Quantity Meal Preparation (AQMP) program on the consumption of home-cooked meals, cooking attitudes, and self-efficacy in healthy adults.MethodsParticipants (n = 10) in a group setting prepared healthy meals weekly consisting of 10 entrees and 5 snacks for 6 weeks. A survey assessing cooking attitudes, cooking self-efficacy, and cooking behavior and consumption at 3 time points: preprogram, postprogram (T2), and 3 months postprogram (T3).ResultsThe AQMP program increased the proportion of overall home-cooked meal consumption (T2, P = 0.03), home-cooked dinner consumption (T2, P = 0.04), cooking attitudes (T3, P = 0.01), and cooking self-efficacy (T2, P = 0.002).Conclusions and ImplicationsThis pilot study indicates that AQMP may increase home-cooked meal consumption, cooking attitudes, and cooking self-efficacy. 相似文献
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Pulmonary perfusion quantification with flow‐sensitive inversion recovery (FAIR) UTE MRI in small animal imaging
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Marta Tibiletti Andrea Bianchi Detlef Stiller Volker Rasche 《NMR in biomedicine》2016,29(12):1791-1799
Blood perfusion in lung parenchyma is an important property for assessing lung function. In small animals, its quantitation is limited even with radioactive isotopes or dynamic contrast‐enhanced MRI techniques. In this study, the feasibility flow‐sensitive alternating inversion recovery (FAIR) for the quantification of blood flow in lung parenchyma in free breathing rats at 7 T has been investigated. In order to obtain sufficient signal from the short T2* lung parenchyma, a 2D ultra‐short echo time (UTE) Look‐Locker read‐out has been implemented. Acquisitions were segmented to maintain acquisition time within an acceptable range. A method to perform retrospective respiratory gating (DC‐SG) has been applied to investigate the impact of respiratory movement. Reproducibilities within and between sessions were estimated, and the ability of FAIR‐UTE to identify the decrease of lung perfusion under hyperoxic conditions was tested. The implemented technique allowed for the visualization of lung parenchyma with excellent SNR and no respiratory artifact even in ungated acquisitions. Lung parenchyma perfusion was obtained as 32.54 ± 2.26 mL/g/min in the left lung, and 34.09 ± 2.75 mL/g/min in the right lung. Application of retrospective gating significantly but minimally changes the perfusion values, implying that respiratory gating may not be necessary with this center‐our acquisition method. A decrease of 10% in lung perfusion was found between normoxic and hyperoxic conditions, proving the feasibility of the FAIR‐UTE approach to quantify lung perfusion changes. 相似文献
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