select ad.sno,ad.journal,ad.title,ad.author_names,ad.abstract,ad.abstractlink,j.j_name,vi.* from articles_data ad left join journals j on j.journal=ad.journal left join vol_issues vi on vi.issue_id_en=ad.issue_id where ad.sno_en='103176' and ad.lang_id='5' and j.lang_id='5' and vi.lang_id='5' Optic Nerve Sheath Diameter Changes with Changing Intra-abdo | 103176
Anesthésie et recherche clinique

Anesthésie et recherche clinique
Libre accès

ISSN: 2155-6148

Abstrait

Optic Nerve Sheath Diameter Changes with Changing Intra-abdominal Pressure and End-Tidal CO2 in Laparoscopic Surgery: A Prospective, Observational Study

Anjali Kumari*

Introduction: Measurement of ONSD by ultrasonography is a surrogate measure of ICP in laparoscopic surgeries. This study aimed to evaluate the change in ONSD with changes in IAP and EtCO2 in patients undergoing laparoscopic cholecystectomy.

Methods: After approval from IEC and BOS, 60 adult patients undergoing elective surgery were selected for the study. Optic nerve aligned directly opposite the 6 MHz-13 MHz linear probe of USG machine of Hitachi Aloka F31 and ONSD measured 3 mm behind the globe perpendicular to axis of the scanning plane at T0, T1, T2, T3 i.e. after intubation, at IAP of 10 mm Hg, 15 mm Hg and after desufflation. Further, the changes in ONSD corresponding to changes in IAP were measured after standardizing EtCO2 to normal level (35 mm Hg-40 mm Hg).

Result: There was significant variation in ONSD (p<0.001) with reference to IAP. EtCO2 went beyond 40 mm Hg in 30% of cases and the increase in ONSD was significantly more (p<0.001) as compared to the patients in whom EtCO2 was within the normal range.

Conclusion: ONSD is a non-invasive, easily performed approach and varies significantly with IAP. Therefore we can imply that increase in IAP can indirectly lead to increase in ICP in clinical scenarios of acute elevations of IAP. A rise in EtCO2>40 mm Hg can also be used as an individual evidence of a rise in ICP in cases where ONSD cannot be measured.

Clause de non-responsabilité: Ce résumé a été traduit à l'aide d'outils d'intelligence artificielle et n'a pas encore été révisé ou vérifié.
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