Subclinical anal sphincter injuries following instrumental delivery-a physiological analysis: A pilot study

Girisha Balaraju, Shiran Shetty, Chandana Seetharama Bhat, Cannanore Ganesh Pai, Deeksha Pandey

Research output: Contribution to journalArticle

Abstract

Introduction: Obstetric Anal Sphincter Injuries (OASIS) has been reported in up to 25% patients and occult OASIS has been reported in up to 1.2%. Instrumental delivery has been considered a risk factor for OASIS. Aim: To compare the anal sphincter functions as assessed by Anorectal Manometry (ARM) in asymptomatic patients following instrument delivery with those of patients who underwent Lower Segment Caesarian Section (LSCS) after six months of delivery. Materials and Methods: Seventeen women who had instrumental delivery and thirteen who underwent elective cesarean section were recruited. Evaluation included a detailed history and physical examination, administration of the Cleveland Clinic Questionnaire and ARM to record the basal pressure, squeeze pressure, anorectal sensation and balloon expulsion time. Categorical variables were compared using the Chi-square test. All calculations were done using the software SPSS 21.0. Results: We found statistically significant lower basal (34±3.4 vs 60±2.3 mm hg, p<0.05) and squeeze pressures (56±4.1 vs 76±5.2 mm hg, p<0.05), and higher balloon expulsion time (58±2.9 s vs 19±1.8 seconds, p<0.05) in women with instrument delivery compared to LSCS. The rectal sensation was comparable in both the groups. Conclusion: Persistent subtle anal sphincter dysfunctions are common following instrument delivery compared to LSCS. The role of identifying these and preventing future incontinence in such women needs to be assessed in future studies.

Original languageEnglish
Pages (from-to)OC18-OC20
JournalJournal of Clinical and Diagnostic Research
Volume11
Issue number10
DOIs
Publication statusPublished - 01-10-2017

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Obstetrics
Anal Canal
Cesarean Section
Balloons
Wounds and Injuries
Manometry
Pressure
Chi-Square Distribution
Physical Examination
Software
History

All Science Journal Classification (ASJC) codes

  • Clinical Biochemistry

Cite this

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abstract = "Introduction: Obstetric Anal Sphincter Injuries (OASIS) has been reported in up to 25{\%} patients and occult OASIS has been reported in up to 1.2{\%}. Instrumental delivery has been considered a risk factor for OASIS. Aim: To compare the anal sphincter functions as assessed by Anorectal Manometry (ARM) in asymptomatic patients following instrument delivery with those of patients who underwent Lower Segment Caesarian Section (LSCS) after six months of delivery. Materials and Methods: Seventeen women who had instrumental delivery and thirteen who underwent elective cesarean section were recruited. Evaluation included a detailed history and physical examination, administration of the Cleveland Clinic Questionnaire and ARM to record the basal pressure, squeeze pressure, anorectal sensation and balloon expulsion time. Categorical variables were compared using the Chi-square test. All calculations were done using the software SPSS 21.0. Results: We found statistically significant lower basal (34±3.4 vs 60±2.3 mm hg, p<0.05) and squeeze pressures (56±4.1 vs 76±5.2 mm hg, p<0.05), and higher balloon expulsion time (58±2.9 s vs 19±1.8 seconds, p<0.05) in women with instrument delivery compared to LSCS. The rectal sensation was comparable in both the groups. Conclusion: Persistent subtle anal sphincter dysfunctions are common following instrument delivery compared to LSCS. The role of identifying these and preventing future incontinence in such women needs to be assessed in future studies.",
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Subclinical anal sphincter injuries following instrumental delivery-a physiological analysis : A pilot study. / Balaraju, Girisha; Shetty, Shiran; Bhat, Chandana Seetharama; Pai, Cannanore Ganesh; Pandey, Deeksha.

In: Journal of Clinical and Diagnostic Research, Vol. 11, No. 10, 01.10.2017, p. OC18-OC20.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Subclinical anal sphincter injuries following instrumental delivery-a physiological analysis

T2 - A pilot study

AU - Balaraju, Girisha

AU - Shetty, Shiran

AU - Bhat, Chandana Seetharama

AU - Pai, Cannanore Ganesh

AU - Pandey, Deeksha

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Introduction: Obstetric Anal Sphincter Injuries (OASIS) has been reported in up to 25% patients and occult OASIS has been reported in up to 1.2%. Instrumental delivery has been considered a risk factor for OASIS. Aim: To compare the anal sphincter functions as assessed by Anorectal Manometry (ARM) in asymptomatic patients following instrument delivery with those of patients who underwent Lower Segment Caesarian Section (LSCS) after six months of delivery. Materials and Methods: Seventeen women who had instrumental delivery and thirteen who underwent elective cesarean section were recruited. Evaluation included a detailed history and physical examination, administration of the Cleveland Clinic Questionnaire and ARM to record the basal pressure, squeeze pressure, anorectal sensation and balloon expulsion time. Categorical variables were compared using the Chi-square test. All calculations were done using the software SPSS 21.0. Results: We found statistically significant lower basal (34±3.4 vs 60±2.3 mm hg, p<0.05) and squeeze pressures (56±4.1 vs 76±5.2 mm hg, p<0.05), and higher balloon expulsion time (58±2.9 s vs 19±1.8 seconds, p<0.05) in women with instrument delivery compared to LSCS. The rectal sensation was comparable in both the groups. Conclusion: Persistent subtle anal sphincter dysfunctions are common following instrument delivery compared to LSCS. The role of identifying these and preventing future incontinence in such women needs to be assessed in future studies.

AB - Introduction: Obstetric Anal Sphincter Injuries (OASIS) has been reported in up to 25% patients and occult OASIS has been reported in up to 1.2%. Instrumental delivery has been considered a risk factor for OASIS. Aim: To compare the anal sphincter functions as assessed by Anorectal Manometry (ARM) in asymptomatic patients following instrument delivery with those of patients who underwent Lower Segment Caesarian Section (LSCS) after six months of delivery. Materials and Methods: Seventeen women who had instrumental delivery and thirteen who underwent elective cesarean section were recruited. Evaluation included a detailed history and physical examination, administration of the Cleveland Clinic Questionnaire and ARM to record the basal pressure, squeeze pressure, anorectal sensation and balloon expulsion time. Categorical variables were compared using the Chi-square test. All calculations were done using the software SPSS 21.0. Results: We found statistically significant lower basal (34±3.4 vs 60±2.3 mm hg, p<0.05) and squeeze pressures (56±4.1 vs 76±5.2 mm hg, p<0.05), and higher balloon expulsion time (58±2.9 s vs 19±1.8 seconds, p<0.05) in women with instrument delivery compared to LSCS. The rectal sensation was comparable in both the groups. Conclusion: Persistent subtle anal sphincter dysfunctions are common following instrument delivery compared to LSCS. The role of identifying these and preventing future incontinence in such women needs to be assessed in future studies.

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