WordNet

of or characteristic of low rank or importance
one of lesser rank or station or quality
having an orbit between the sun and the Earths orbit; "Mercury and Venus are inferior planets"
lower than a given reference point; "inferior alveolar artery"
of low or inferior quality
remove by passing through a filter; "filter out the impurities" (同)filtrate, strain, separate out, filter out
an electrical device that alters the frequency spectrum of signals passing through it
device that removes something from whatever passes through it
covering or applying simultaneously to a number of similar items or elements or groups; "an umbrella organization"; "umbrella insurance coverage"
a formation of military planes maintained over ground operations or targets; "an air umbrella over England"
a lightweight handheld collapsible canopy
having the function of uniting a group of similar things; "the Democratic Party is an umbrella for many liberal groups"; "under the umbrella of capitalism"

PrepTutorEJDIC

(階級・親分・質・程度などが)『下の』,『劣る』, / (位置が)低い,下方の / 目下の者;劣った人
『ろ過器』,ろ過装置;ろ過用材料(布・紙・木炭・砂など) / (写真の)フィルター / 〈液体・気体〉‘を'『ろ過する』,こす;…‘を'ろ過して取る / ゆっくり進む(通る)
傘(かさ),こうもり傘,雨傘,日傘 / (一般に,傘状の)保護物,影響力

UpToDate Contents

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1. 大静脈フィルター留置とその合併症 placement of vena cava filters and their complications
2. 成人における急性肺塞栓症に対する治療、予後、および経過観察の概要 overview of the treatment prognosis and follow up of acute pulmonary embolism in adults
3. 下肢深部静脈血栓症の治療の概要 overview of the treatment of lower extremity deep vein thrombosis dvt
4. 妊娠における深部静脈血栓症および肺塞栓症：治療 deep vein thrombosis and pulmonary embolism in pregnancy treatment
5. 脳腫瘍患者における抗凝固剤および抗血小板療法 anticoagulant and antiplatelet therapy in patients with brain tumors

English Journal

Difficult OptEase Filter Retrievals After Prolonged Indwelling Times.

Van Ha TG, Kang L, Lorenz J, Zangan S, Navuluri R, Straus C, Funaki B.SourceSection of Interventional Radiology, Department of Radiology, University of Chicago, Chicago, IL, 60637, USA, tgvanha@radiology.bsd.uchicago.edu.
Cardiovascular and interventional radiology.Cardiovasc Intervent Radiol.2013 Apr 12. [Epub ahead of print]
PURPOSE: The OptEase vena cave filter (Cordis, Piscataway, NJ) is commercially available as a retrievable or permanent filter with short recommended indwelling time, presumably due to extensive contact of the filter side struts with the inferior vena cava wall and subsequent neointimal hyperplasia l
PMID 23580122

Factors impacting follow-up care after placement of temporary inferior vena cava filters.

Gyang E, Zayed M, Harris EJ, Lee JT, Dalman RL, Mell MW.SourceDepartment of Surgery, Division of Vascular Surgery, Stanford University School of Medicine, Stanford, Calif.
Journal of vascular surgery.J Vasc Surg.2013 Apr 12. pii: S0741-5214(13)00191-2. doi: 10.1016/j.jvs.2012.12.085. [Epub ahead of print]
OBJECTIVE: Rates of inferior vena cava (IVC) filter retrieval have remained suboptimal, in part because of poor follow-up. The goal of our study was to determine demographic and clinical factors predictive of IVC filter follow-up care in a university hospital setting.METHODS: We reviewed 250 consecu
PMID 23588109

Indications, complications, and management of inferior vena cava filters: the experience in 952 patients at an academic hospital with a level I trauma center.

Sarosiek S, Crowther M, Sloan JM.AbstractIMPORTANCE Retrievable inferior vena cava (IVC) filters were designed to provide temporary protection from pulmonary embolism, sparing patients from long-term complications of permanent filters. However, many retrievable IVC filters are left in place indefinitely. OBJECTIVES To review the medical records of patients with IVC filters to determine patient demographics and date of and indication for IVC filter placement, as well as complications, follow-up data, date of IVC filter retrieval, and use of anticoagulant therapy. DESIGN AND SETTING A retrospective review of IVC filter use between August 1, 2003, and February 28, 2011, was conducted at Boston Medical Center, a tertiary referral center with the largest trauma center in New England. PARTICIPANTS In total, 978 patients. Twenty six patients were excluded from the study because of incomplete medical records. INTERVENTION Placement of retrievable IVC filter. MAIN OUTCOME MEASURES In total, 952 medical records were included in the analysis. RESULTS Of 679 retrievable IVC filters that were placed, 58 (8.5%) were successfully removed. Unsuccessful retrieval attempts were made in 13 patients (18.3% of attempts). Seventy-four venous thrombotic events (7.8% of 952 patients included in the study) occurred after IVC filter placement, including 25 pulmonary emboli, all of which occurred with the IVC filter in place. Forty-eight percent of venous thrombotic events were in patients without venous thromboembolism at the time of IVC filter placement, and 89.4% occurred in patients not receiving anticoagulants. Many IVC filters placed after trauma were inserted when the highest bleeding risk had subsided, and anticoagulant therapy may have been appropriate. While many of these filters were placed because of a perceived contraindication to anticoagulants, 237 patients (24.9%) were discharged on a regimen of anticoagulant therapy. CONCLUSION AND RELEVANCE Our research suggests that the use of IVC filters for prophylaxis and treatment of venous thrombotic events, combined with a low retrieval rate and inconsistent use of anticoagulant therapy, results in suboptimal outcomes due to high rates of venous thromboembolism.
JAMA internal medicine.JAMA Intern Med.2013 Apr 8;173(7):513-7. doi: 10.1001/jamainternmed.2013.343.
IMPORTANCE Retrievable inferior vena cava (IVC) filters were designed to provide temporary protection from pulmonary embolism, sparing patients from long-term complications of permanent filters. However, many retrievable IVC filters are left in place indefinitely. OBJECTIVES To review the medical re
PMID 23552968