Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh.
<h4>Introduction</h4>Measurement of optic nerve sheath diameter (ONSD) by ultrasound is increasingly used as a marker to detect raised intracranial pressure (ICP). ONSD varies with age and there is no clear consensus between studies for an upper limit of normal. Knowledge of normal ONSD...
Saved in:
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2013-01-01
|
| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0081013&type=printable |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850125160250605568 |
|---|---|
| author | Rapeephan R Maude Md Amir Hossain Mahtab Uddin Hassan Sophie Osbourne Katherine Langan Abu Sayeed Mohammed Rezaul Karim Rasheda Samad Shyamanga Borooah Bal Dhillon Nicholas P J Day Arjen M Dondorp Richard J Maude |
| author_facet | Rapeephan R Maude Md Amir Hossain Mahtab Uddin Hassan Sophie Osbourne Katherine Langan Abu Sayeed Mohammed Rezaul Karim Rasheda Samad Shyamanga Borooah Bal Dhillon Nicholas P J Day Arjen M Dondorp Richard J Maude |
| author_sort | Rapeephan R Maude |
| collection | DOAJ |
| description | <h4>Introduction</h4>Measurement of optic nerve sheath diameter (ONSD) by ultrasound is increasingly used as a marker to detect raised intracranial pressure (ICP). ONSD varies with age and there is no clear consensus between studies for an upper limit of normal. Knowledge of normal ONSD in a healthy population is essential to interpret this measurement.<h4>Methods</h4>In a prospective observational study, ONSD was measured using a 15 MHz ultrasound probe in healthy volunteers in Chittagong, Bangladesh. The aims were to determine the normal range of ONSD in healthy Bangladeshi adults and children, compare measurements in males and females, horizontal and vertical beam orientations and left and right eyes in the same individual and to determine whether ONSD varies with head circumference independent of age.<h4>Results</h4>136 subjects were enrolled, 12.5% of whom were age 16 or under. Median ONSD was 4.41 mm with 95% of subjects in the range 4.25-4.75 mm. ONSD was bimodally distributed. There was no relationship between ONSD and age (≥4 years), gender, head circumference, and no difference in left vs right eye or horizontal vs vertical beam.<h4>Conclusions</h4>Ultrasonographic ONSD in Bangladeshi healthy volunteers has a narrow bimodal distribution independent of age (≥4 years), gender and head circumference. ONSD >4.75 mm in this population should be considered abnormal. |
| format | Article |
| id | doaj-art-cd80d515a5ba4965aecf9783e60e1205 |
| institution | OA Journals |
| issn | 1932-6203 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-cd80d515a5ba4965aecf9783e60e12052025-08-20T02:34:10ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01812e8101310.1371/journal.pone.0081013Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh.Rapeephan R MaudeMd Amir HossainMahtab Uddin HassanSophie OsbourneKatherine Langan Abu SayeedMohammed Rezaul KarimRasheda SamadShyamanga BorooahBal DhillonNicholas P J DayArjen M DondorpRichard J Maude<h4>Introduction</h4>Measurement of optic nerve sheath diameter (ONSD) by ultrasound is increasingly used as a marker to detect raised intracranial pressure (ICP). ONSD varies with age and there is no clear consensus between studies for an upper limit of normal. Knowledge of normal ONSD in a healthy population is essential to interpret this measurement.<h4>Methods</h4>In a prospective observational study, ONSD was measured using a 15 MHz ultrasound probe in healthy volunteers in Chittagong, Bangladesh. The aims were to determine the normal range of ONSD in healthy Bangladeshi adults and children, compare measurements in males and females, horizontal and vertical beam orientations and left and right eyes in the same individual and to determine whether ONSD varies with head circumference independent of age.<h4>Results</h4>136 subjects were enrolled, 12.5% of whom were age 16 or under. Median ONSD was 4.41 mm with 95% of subjects in the range 4.25-4.75 mm. ONSD was bimodally distributed. There was no relationship between ONSD and age (≥4 years), gender, head circumference, and no difference in left vs right eye or horizontal vs vertical beam.<h4>Conclusions</h4>Ultrasonographic ONSD in Bangladeshi healthy volunteers has a narrow bimodal distribution independent of age (≥4 years), gender and head circumference. ONSD >4.75 mm in this population should be considered abnormal.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0081013&type=printable |
| spellingShingle | Rapeephan R Maude Md Amir Hossain Mahtab Uddin Hassan Sophie Osbourne Katherine Langan Abu Sayeed Mohammed Rezaul Karim Rasheda Samad Shyamanga Borooah Bal Dhillon Nicholas P J Day Arjen M Dondorp Richard J Maude Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh. PLoS ONE |
| title | Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh. |
| title_full | Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh. |
| title_fullStr | Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh. |
| title_full_unstemmed | Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh. |
| title_short | Transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in Bangladesh. |
| title_sort | transorbital sonographic evaluation of normal optic nerve sheath diameter in healthy volunteers in bangladesh |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0081013&type=printable |
| work_keys_str_mv | AT rapeephanrmaude transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT mdamirhossain transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT mahtabuddinhassan transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT sophieosbourne transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT katherinelanganabusayeed transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT mohammedrezaulkarim transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT rashedasamad transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT shyamangaborooah transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT baldhillon transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT nicholaspjday transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT arjenmdondorp transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh AT richardjmaude transorbitalsonographicevaluationofnormalopticnervesheathdiameterinhealthyvolunteersinbangladesh |