首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   49篇
  免费   1篇
儿科学   6篇
临床医学   8篇
内科学   6篇
皮肤病学   10篇
神经病学   4篇
外科学   7篇
预防医学   4篇
药学   3篇
中国医学   1篇
肿瘤学   1篇
  2021年   4篇
  2020年   1篇
  2019年   2篇
  2018年   1篇
  2017年   1篇
  2014年   2篇
  2013年   4篇
  2012年   9篇
  2011年   1篇
  2009年   1篇
  2005年   2篇
  2004年   1篇
  2003年   4篇
  2000年   2篇
  1999年   3篇
  1998年   1篇
  1997年   1篇
  1996年   1篇
  1992年   1篇
  1991年   2篇
  1990年   3篇
  1988年   1篇
  1968年   1篇
  1967年   1篇
排序方式: 共有50条查询结果,搜索用时 31 毫秒
1.
International Journal of Clinical Oncology - Immune-checkpoint inhibitors (ICIs) are standard treatments for metastatic non-small cell lung cancer (NSCLC). Patients with poor performance status...  相似文献   
2.
3.
4.
5.
6.
Twenty-two patients with chronic pain of malignant or nonmalignant origin were given intravenous morphine by patient-controlled analgesia. A prestudy judgment was made from the characteristics of the pain as to whether it was nociceptive or neuropathic. Analgesic efficacy was assessed by a nurse-observer; adverse events were noted and plasma morphine and metabolitie concentrations measured. Three categories of opioid response were distinguished. Good responders obtained > 70 mm relief on the visual analogue scale, with minimal or manageable adverse events. Moderate responders obtained < 70 but > 30 mm relief with more problematic adverse events, and poor responders had < 30 mm relief with troublesome adverse events. This method for the study of opioid sensitivity allowed a wide dosage range to be studied. The simultaneous analgesic and adverse event measurements showed that the spectrum of observed response was wide, and response category could be judged for the majority by 4 h. In those with poor or moderate response, adverse event severity limited further dose increment. The relationship between pain characteristics and response showed that some pains judged to be neuropathic had a good response to opioid (5/13), and some pains judged to be nociceptive did not (5/14). The study suggests that the pattern of response is not as black and white as the prediction of good response from nociceptive pain and poor from neuropathic pain would suggest, although nociceptive pain was more likely than neuropathic pain to show a good response. For the moderate responders opioid titration may, in the absence of other effective treatments, be useful, but the analgesic endpoint may not be totally satisfactory. The method provides an operational definition of opioid sensitivity.  相似文献   
7.
The relationship between oxygen dissociation and 2,3-diphosphoglycerate (2,3-DPG) in the red cell has been studied in subjects moving from low to high altitude and vice versa. Within 24 hr following the change in altitude there was a change in hemoglobin affinity for oxygen; this modification therefore represents an important rapid adaptive mechanism to anoxia. A parallel change occurred in the organic phosphate content of the red cell. While this study does not provide direct evidence of a cause-effect relationship, the data strongly suggest that with anoxia, the observed rise in organic phosphate content of the red cell is responsible for increased availability of oxygen to tissues.  相似文献   
8.

Introduction

Several authors question the performance of systematic renal ultrasound after first urinary tract infection (UTI) in young children, given the high sensitivity of prenatal ultrasounds to detect major malformations and the low prevalence of clinical relevant findings. The aims of this study are to evaluate the yield of renal ultrasound performed after the first UTI in patients aged less than 2 years and to analyse potential risk factors (RF) of altered renal ultrasound.

Patients and methods

Retrospective study, including patients aged less than 2 years diagnosed with UTI in the Emergency Department between July 2013 and December 2014. Patients with an underlying nephro-urological pathology, previous UTIs and those without prenatal or post-infection renal ultrasound were excluded. Altered renal ultrasound was defined as the presence of dilated urinary tract or structural abnormalities. Potential RF analysed were: male, age less than 3 months, presence of fever and microorganism other than Escherichia coli. Univariate and multivariate logistic regression were performed.

Results

A total of 306 patients were included. Altered renal ultrasound was found in 35 cases (11.4%; 95% CI 8.3-15.5): 24 (68.6%) urinary tract dilation, and 11 (31%) structural abnormalities. Among the cases with altered ultrasound, 68.6% were male, 51.4% were younger than 3 months, 74.3% were febrile, and 31.4% were caused by microorganisms other than E. coli, compared to 45% (P = .009), 31.7% (P = .021), 78.2% (P = .597) and 10% (P = .001) of cases with normal ultrasound. In the multivariate analysis, age less than 3 months (OR 2.1; 95% CI 1.0-4.3, P = .05) and microorganism other than E. coli (OR 3.8; 95% CI 1.7-8.7, P = .002) remained as RF.

Conclusions

The yield of renal ultrasound after the first UTI is low. Its indication should be individualised according to the presence of RF: age less than 3 months and microorganism other than E. coli.  相似文献   
9.
10.
The population of late preterm infants (PT), those born between 34 + 0 and 36 + 6 weeks of gestation, accounts for 70-74% of all premature infants, and is not specifically included in most of the follow-up protocols for preterm infants. For many years, PTs have been handled as if they were term newborns, which has led to a limited knowledge of their outcome in the medium and long term. Their neonatal morbidity is associated with a higher incidence of postnatal complications, with an increased rate of hospital re-admissions due to malnutrition, hyperbilirubinaemia, and respiratory problems, when compared to term infants. Cerebral immaturity may be the main cause of the deficits observed in the long-term neurodevelopment of this population, making them more vulnerable. Several issues have been described, such as delays or disabilities in the pre-school stage, cerebral palsy, mental retardation, intellectual disability, schizophrenia, and psychological development of behavioural and emotional disorders.The SEN34-36 Group of the Spanish Society of Neonatology, in collaboration with the Spanish Association of Primary Care Paediatrics, have developed these follow-up recommendations with the main objective of reducing the impact of prematurity on PT development. The secondary objectives of the document are to make neonatologists and paediatricians aware of the risks of sequelae of PTs, to determine and unify the evaluations and / or interventions that should be carried out, to offer clinical follow-up tools for the early detection of developmental delays, and to coordinate the care by all the professionals involved.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号