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Observer accuracy and reproducibility of visual estimation of blood loss in obstetrics: how accurate and consistent are health-care professionals? (Record no. 75763)

MARC details
000 -LEADER
fixed length control field 04378cam a2200265 4500
001 - CONTROL NUMBER
control field NMDX6598
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 120401t2010 xxu||||| |||| 00| 0 eng d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 09320067
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Yoong, W.
240 ## - UNIFORM TITLE
Uniform title <a href="Archives of Gynecology & Obstetrics">Archives of Gynecology & Obstetrics</a>
245 ## - TITLE STATEMENT
Title Observer accuracy and reproducibility of visual estimation of blood loss in obstetrics: how accurate and consistent are health-care professionals?
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Date of publication, distribution, etc. 2010
500 ## - GENERAL NOTE
General note NMUH Staff Publications
500 ## - GENERAL NOTE
General note 281
520 ## - SUMMARY, ETC.
Summary, etc. &lt;h4 style="margin: 0px 0.25em 0px 0px; text-transform: uppercase; float: left; font-family: arial, helvetica, clean, sans-serif; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;OBJECTIVES:&lt;/span&gt;&lt;/h4&gt;&lt;p style="margin: 0px 0px 0.5em; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;To evaluate the&amp;nbsp;&lt;span class="highlight"&gt;observer&lt;/span&gt;&amp;nbsp;&lt;span class="highlight"&gt;accuracy&lt;/span&gt;&amp;nbsp;and intra-&lt;span class="highlight"&gt;observer&lt;/span&gt;&amp;nbsp;test-retest reliability of&amp;nbsp;&lt;span class="highlight"&gt;visual&lt;/span&gt;&amp;nbsp;&lt;span class="highlight"&gt;estimation&lt;/span&gt;&amp;nbsp;of&amp;nbsp;&lt;span class="highlight"&gt;blood loss&lt;/span&gt;by midwives and obstetricians.&lt;/span&gt;&lt;/p&gt;&lt;h4 style="margin: 0px 0.25em 0px 0px; text-transform: uppercase; float: left; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;METHODS:&lt;/span&gt;&lt;/h4&gt;&lt;p style="margin: 0px 0px 0.5em; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;This was a prospective, single-blinded observational study conducted at a London teaching hospital. The&lt;span class="highlight"&gt;accuracy&lt;/span&gt;&amp;nbsp;of visually estimating five maternity pads that had been soaked with 25, 50, 100, 150 and 200 ml of&amp;nbsp;&lt;span class="highlight"&gt;blood&lt;/span&gt;&amp;nbsp;was assessed. The&amp;nbsp;&lt;span class="highlight"&gt;reproducibility&lt;/span&gt;&amp;nbsp;in estimating the same volume (two sets of pads soaked with 50, 100, 150 and 200 ml of&lt;span class="highlight"&gt;blood&lt;/span&gt;&amp;nbsp;randomly placed at separate stations) was evaluated by asking participants to visually estimate these volumes.&lt;/span&gt;&lt;/p&gt;&lt;h4 style="margin: 0px 0.25em 0px 0px; text-transform: uppercase; float: left; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;RESULTS:&lt;/span&gt;&lt;/h4&gt;&lt;p style="margin: 0px 0px 0.5em; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;Although there is a tendency to overestimate, the mean percentage difference (estimated-actual volumes) was not significantly different among consultants, trainees and midwives.&amp;nbsp;&lt;span class="highlight"&gt;Visual&lt;/span&gt;&amp;nbsp;estimations were especially inaccurate with smaller volumes, which could be overestimated by up to 540%. Test-retest reliability was poor for the larger volumes but statistically acceptable for the smaller volumes, although the difference between the two estimates of the same volume could be as much as 300%.&lt;/span&gt;&lt;/p&gt;&lt;h4 style="margin: 0px 0.25em 0px 0px; text-transform: uppercase; float: left; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;CONCLUSIONS:&lt;/span&gt;&lt;/h4&gt;&lt;p style="margin: 0px 0px 0.5em; line-height: 17.999801635742188px;"&gt;&lt;span style="font-size: 8pt;"&gt;&lt;span class="highlight"&gt;Visual&lt;/span&gt;&amp;nbsp;estimations were inaccurate by health-care professionals who have a tendency to overestimate. Experience did not appear to have a confounding effect on&amp;nbsp;&lt;span class="highlight"&gt;accuracy&lt;/span&gt;. Further training in&amp;nbsp;&lt;span class="highlight"&gt;visual&lt;/span&gt;&amp;nbsp;assessment skills is necessary in order to improve the clinicians'&amp;nbsp;&lt;span class="highlight"&gt;estimation&lt;/span&gt;.&lt;/span&gt;&lt;/p&gt;
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Karavolos, S
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Damodaram, M
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Madgwick, K
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Milestone, N
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Al-Habib, A
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Fakokunde, A.
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Okolo, S
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="http://www.ncbi.nlm.nih.gov/pubmed/19434419">http://www.ncbi.nlm.nih.gov/pubmed/19434419</a>
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="http://link.springer.com/article/10.1007%2Fs00404-009-1099-8">http://link.springer.com/article/10.1007%2Fs00404-009-1099-8</a>
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        Staff publications for NMDX Ferriman Information and Library Service (North Middlesex) Ferriman Information and Library Service (North Middlesex) Online 07/06/2022   07/06/2022 07/06/2022 UNKNOWN