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April 2020, Week 4

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From:
"Heskett, Karen" <[log in to unmask]>
Reply To:
Heskett, Karen
Date:
Wed, 22 Apr 2020 20:50:56 +0000
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Many thanks to Jill and Nicole, I think I know what caused it in this case.  

It appears to be a quirkiness with truncation when field searching title and abstract.  In the full search I used systematic* review[tiab] which was not used in the simple search.  I took out the * and it worked.  I can used an ORed group of the word variations instead of the asterisk.  The total results increased as a result of the change.  How many relevant articles would I have missed if I didn't have a list of articles to use as a double-check and find this flaw?!  

Crazy! But I have a little more sanity now.  Thanks so much Jill & Nicole.

Karen

P.S.  I still have a weirdness when double-checking a couple of articles when the PMID, but I can at least I can find them by author.  



-----Original Message-----
From: Medical Libraries Discussion List <[log in to unmask]> On Behalf Of Heskett, Karen
Sent: Wednesday, April 22, 2020 11:26 AM
To: [log in to unmask]
Subject: Has this happened to you? PubMed NOT finding an article in a complex search that it does in a simplified one?

Hi All,

A little sanity check on this one.  I am making myself crazy with this one.  Usually I can figure out what is going on, but not this time.

I have a complex search that when checked for previously identified "good articles" I cannot find it in the results.  However, when I pick just 1 word from each of the 4 concepts, I can find it.  Crazy, right?  To be specific, if I search there terms,

*       carotid artery stenting[tiab] AND

*       carotid stenosis[tiab]  AND

*       timing[tiab] AND

*       Retrospective Studies[Mesh]
I find the article by Topakian R   PMID 17539948.  See results<https://urldefense.com/v3/__https://www.ncbi.nlm.nih.gov/pubmed/?term=carotid*artery*stenting*5Btiab*5D*AND*carotid*stenosis*5Btiab*5D*AND*timing*5Btiab*5D*AND*Retrospective*Studies*5BMesh*5D__;KyslJSsrKyUlKyslJSsrKyUl!!Mih3wA!Q_LY07GHyGk7INEaDc5wNw2R8i6jBBFMBRLxquWwc5-vu5PQkRbjgQt5jIFlJr3r$ >.

If I search the whole strategy (pasted below) where these 4 terms appear, I cannot find this article even if I search by name or PMID.  See results<https://www.ncbi.nlm.nih.gov/pubmed/?term=((((((Retrospective+Studies%5BMesh%5D+OR+retrospective*%5Btiab%5D+OR+Meta-Analysis+%5BPublication+Type%5D+OR+Meta-Analysis+as+Topic%5BMeSH%3Anoexp%5D+OR+meta-analy*%5Btiab%5D+OR+metaanaly*%5Btiab%5D+OR+systematic*+review%5Btiab%5D+OR+Systematic+Review+%5BPublication+Type%5D+OR+Systematic+Reviews+as+Topic%5BMesh%5D+OR+(comprehensive*%5BTIAB%5D+AND+(bibliographic*%5BTIAB%5D+OR+literature%5Btiab%5D))+OR+integrative+review%5Btiab%5D+OR+?research+synthesis?%5Btiab%5D+OR+Randomized+Controlled+Trial+%5BPublication+Type%5D+OR+Randomized+Controlled+Trials+as+Topic%5BMesh%5D+OR+controlled+trial%5Btiab%5D+OR+randomized%5Btiab%5D+OR+randomised%5Btiab%5D+OR+placebo%5Btiab%5D+OR+drug+therapy%5Bsh%5D+OR+randomly%5Btiab%5D+OR+trial%5Btiab%5D+OR+groups%5Btiab%5D+OR+Prospective+Studies%5BMesh%5D+OR+Prospective+study%5Btiab%5D))+AND+(Time-to-Treatment%5BMesh%5D+OR+Time+Factors%5BMeSH+Terms%5D+OR+timing%5Btiab%5D+OR+urgent%5Btiab%5D+OR+optimal+tim*%5Btiab%5D+OR+ultra-early+OR+%22early+endarterectomy%22+OR+%22early+cas%22+OR+%22early+revascularization%22+OR+%22early+intervention%22+OR+delay%5Btiab%5D+OR+deferred%5Btiab%5D+OR+30-day*%5Btiab%5D+OR+%2230+days%22))+AND+(Carotid+Artery+Diseases%5BMesh%3ANoExp%5D+OR+carotid+artery+disease%5Btiab%5D+OR+Carotid+Stenosis%5BMesh%5D+OR+carotid+stenosis%5Btiab%5D+OR+symptomatic%5Btiab%5D+OR+Stroke%5BMesh%5D+OR+Ischemic+Attack%2C+Transient%5BMesh%5D+OR+stroke%5Btiab%5D+OR+tia%5Btiab%5D+OR+transient+ischemic+attack%5Btiab%5D+OR+transient+ischaemic+attack%5Btiab%5D+OR+symptom+onset%5Btiab%5D))+AND+(Endarterectomy%2C+Carotid%5BMesh%5D+OR+carotid+artery+stenting%5Btiab%5D+OR+Stents%5BMesh%5D+OR+carotid+Endarterectomy%5Btiab%5D+OR+stent*%5Btiab%5D+OR+revasculari*%5Btiab%5D)))+AND+(17539948%5Buid%5D)>.

What am I missing?  I had a similar situation with a different article in this search but was able to find it with author name.  Any advice?

Thanks for any help.

Karen

Search strategy
Endarterectomy, Carotid[Mesh]
OR
carotid artery stenting[tiab]
OR
Stents[Mesh]
OR
carotid Endarterectomy[tiab]
OR
stent*[tiab]
OR
revasculari*[tiab]
--------- AND ------
Carotid Artery Diseases[Mesh:NoExp]
OR
carotid artery disease[tiab]
OR
Carotid Stenosis[Mesh]
OR
carotid stenosis[tiab]
OR
symptomatic[tiab]
OR
Stroke[Mesh]
OR
Ischemic Attack, Transient[Mesh]
OR
stroke[tiab]
OR
tia[tiab]
OR
transient ischemic attack[tiab]
OR
transient ischaemic attack[tiab]
OR
symptom onset[tiab]
------ AND ------
Time-to-Treatment[Mesh]
OR
Time Factors[MeSH Terms]
OR
timing[tiab]
OR
urgent[tiab]
OR
optimal tim*[tiab]
OR
ultra-early
OR
"early endarterectomy"
OR
"early cas"
OR
"early revascularization"
OR
"early intervention"
OR
delay[tiab]
OR
deferred[tiab]

--------- AND ------------
Retrospective Studies[Mesh]
OR
retrospective*[tiab]
OR
Meta-Analysis [Publication Type]
OR
Meta-Analysis as Topic[MeSH:noexp]
OR
meta-analy*[tiab]
OR
metaanaly*[tiab]
OR
systematic* review[tiab]
OR
Systematic Review [Publication Type]
OR
Systematic Reviews as Topic[Mesh]
OR
(comprehensive*[TIAB] AND (bibliographic*[TIAB] OR literature[tiab])) OR integrative review[tiab] OR "research synthesis"[tiab] OR Randomized Controlled Trial [Publication Type] OR Randomized Controlled Trials as Topic[Mesh] OR controlled trial[tiab] OR randomized[tiab] OR randomised[tiab] OR placebo[tiab] OR drug therapy[sh] OR randomly[tiab] OR trial[tiab] OR groups[tiab] OR Prospective Studies[Mesh] OR Prospective study[tiab]






*-.,,.-*"*-.,,.-*"*-.,,.-*"*
Karen Heskett
Instruction & Liaison Librarian
UC San Diego Library
9500 Gilman Dr. 0699
La Jolla, CA  92093
858/534-1199
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