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Background

The STOP-BANG questionnaire screens for obstructive sleep apnoea (OSA) in surgical patients. In prior research, the association of STOP-BANG scores with comorbidities and outcomes was inconsistent. The objective of this study was to evaluate the validity of the STOP-BANG score.

Methods

We conducted a retrospective cohort study of patients undergoing major elective noncardiac surgery at the University Health Network (Toronto, ON, Canada) between 2011 and 2015. Cross-sectional construct validity was evaluated based on proportions with diagnosed OSA across STOP-BANG strata. Concurrent construct validity was assessed based on the correlation of STOP-BANG with ASA Physical Status (ASA-PS), the Revised Cardiac Risk Index, and the Charlson Comorbidity Index. Predictive validity was assessed based on the adjusted associations of STOP-BANG risk with 30-day mortality (logistic regression), cardiac complications (logistic regression), and length-of-stay (negative binomial regression).

Results

Of 26 068 patients in the cohort, 58% were in the low-risk STOP-BANG stratum, 23% in the intermediate-risk stratum, and 19% in the high-risk stratum. The proportion with previously diagnosed OSA was 4% (n=615) in the low-risk stratum, 12% (n=740) in the intermediate-risk stratum, and 44% (n=2142) in the high-risk stratum. The correlations of STOP-BANG with ASA-PS (Spearman ρ=0.28), Revised Cardiac Risk Index (ρ=0.24), and Charlson Comorbidity Index (ρ=0.10) were weak, albeit statistically significant (P<0.001). After risk-adjustment, STOP-BANG risk strata were not associated with 30-day mortality, cardiac complications, or length-of-stay.

Conclusions

The STOP-BANG questionnaire has modest construct validity but did not predict postoperative mortality, hospital length-of-stay, or cardiac complications.  相似文献   
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《Australian critical care》2022,35(3):286-293
ObjectiveThe aim of the study was to determine the response rate to a mixed-mode survey using email compared with that to a paper survey in survivors of critical illness.DesignThis is a prospective randomised controlled trial.SettingThe study was conducted at a single-centre quaternary intensive care unit (ICU) in Adelaide, Australia.ParticipantsStudy participants were patients admitted to the ICU for ≥48 h and discharged from the hospital.InterventionsThe participants were randomised to receive a survey by paper (via mail) or via online (via email, or if a non-email user, via a letter with a website address). Patients who did not respond to the initial survey received a reminder paper survey after 14 days. The survey included quality of life (EuroQol-5D-5L), anxiety and depression (Hospital Anxiety and Depression Scale), and post-traumatic symptom (Impact of Event Scale-Revised) assessment.Main outcome measuresSurvey response rate, extent of survey completion, clinical outcomes at different time points after discharge, and survey cost analysis were the main outcome measures. Outcomes were stratified based on follow-up time after ICU discharge (3, 6, and 12 months).ResultsA total of 239 patients were randomised. The response rate was similar between the groups (mixed-mode: 78% [92/118 patients] vs. paper: 80% [97/121 patients], p = 0.751) and did not differ between time points of follow-up. Incomplete surveys were more prevalent in the paper group (10% vs 18%). The median EuroQol-5D-5L index value was 0.83 [0.71–0.92]. Depressive symptoms were reported by 25% of patients (46/187), anxiety symptoms were reported by 27% (50/187), and probable post-traumatic stress disorder was reported by 14% (25/184). Patient outcomes did not differ between the groups or time points of follow-up. The cost per reply was AU$ 16.60 (mixed-mode) vs AU$ 19.78 (paper).ConclusionThe response rate of a mixed-mode survey is similar to that of a paper survey and may provide modest cost savings.  相似文献   
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Patients with obstructive sleep apnea (OSA) have increased postoperative complications that are important for patient safety and healthcare utilization. Questionnaires help identify patients at risk for OSA; however, among older adults who preoperatively self-administered OSA questionnaires, the frequency of postoperative Medical Emergency Team Activation (META), rapid response, code blue, code stroke, is unknown.ObjectivesIdentify whether having OSA questionnaires completed by patients is feasible in the preoperative clinic. Determine the frequency of META among older patients at risk for OSA.Design and interventionCohort of prospective patients independently completed 2 OSA questionnaires in a preoperative clinic, STOP-Bang (SB) and ISNORED (IS). Observers blinded to questionnaire responses recorded incidence of META.setting and participantsOf the 898 consecutive patients approached in the preoperative assessment clinic and surgical navigation center, 575 (64%) consented and completed the questionnaires in <5 minutes and were included in the analysis.MeasuresSleep questionnaire responses and frequency of inpatient postoperative META.ResultsWith an affirmative response to ≥3 questions on either questionnaire, 65% of patients enrolled were at risk for OSA. Of these, 3.1% sustained an META. In patients at risk for OSA, META occurred in 7.6% (SB+) and 7.2% (IS+) vs 2.5% (SB+) and 1.7% (IS+) for low risk. METAs were disproportionately higher among patients aged ≥65 years (6.3% vs 1.7%; P < .018), American Society of Anesthesiologists (ASA) physical status class ≥3, and IS+. All patients with META positively answered ≥3 of 15 components of the 2 questionnaires.Conclusions/ImplicationsPreoperative, self-administration of SB and IS questionnaires is feasible. Overall, 65% of those with affirmative responses to ≥3 questions were at risk for OSA and associated with a disproportionate number of postoperative META in older patients. Additionally, risk of OSA identified by preoperative sleep questionnaires was associated with postoperative META among older adults. Use of clinical tools and OSA questionnaires may improve preoperative identification of META in this population.  相似文献   
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ObjectiveThough the operating microscope (OM) has been the standard optical system in neurosurgery, a new technology called three-dimensional (3D) exoscope has emerged as an alternative. Herein, two types of 3D exoscopes for brain tumor surgery are presented. In addition, the advantages and limitations compared with the OM are discussed. MethodsIn the present study, 3D exoscope VOMS-100 or VITOM 3D was used in 11 patients with brain tumor who underwent surgical resection; the Kinevo 900 OM was used only in emergency. After completion of all surgeries, the participants were surveyed with a questionnaire regarding video image quality on the display monitor, handling of equipment, ergonomics, educational usefulness, 3D glasses, and expectation as a substitute for the OM. ResultsAmong 11 patients, nine patients underwent neurosurgical resection with only 3D exoscope; however, two patients required additional aid with the OM due to difficulty in hemostasis. Regarding video image quality, VITOM 3D was mostly equivalent to the OM, but VOMS-100 was not. However, both 3D exoscopes showed advantages in accessibility of instruments in the surgical field and occupied less space in the operating theater. Differences in ergonomics and educational usefulness between the exoscopes were not reported. Respondents did not experience discomfort in wearing 3D glasses and thought the exoscopes could be currently, and in the future, used as a substitute for the OM. ConclusionAlthough many neurosurgeons are not familiar with 3D exoscopes, they have advantages compared with the OM and similar image quality. Exoscopes could be a substitute for OM in the future if some limitations are overcome.  相似文献   
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