ArticleSurgical endoscopy2013
Intraocular pressure variation during colorectal laparoscopic surgery: standard pneumoperitoneum leads to reversible elevation in intraocular pressure.
Article in Surgical endoscopy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 35 citations in OpenAlex.
- Comparison of the Effects of Spinal Versus General Anesthesia on the Perioperative Intraocular Pressure:Saudi medical journal · 2026Trial
- Intraoperative optic nerve sheath diameter changes in vNOTES versus total laparoscopic hysterectomy: a prospective randomized study.Surgical endoscopy · 2026Trial
- The effect of anesthetic agents on intraocular pressure during laparoscopic gynecological surgery performed in the Trendelenburg position: A randomized clinical trial.Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES · 2022Trial
- Variation in intraocular pressure caused by repetitive positional changes during laparoscopic colorectal surgery: a prospective, randomized, controlled study comparing propofol and desflurane anesthesia.Journal of clinical monitoring and computing · 2018Trial
- Impact of an intraoperative Trendelenburg break on perioperative outcomes during robot-assisted radical prostatectomy.Journal of robotic surgery · 2026Article
- The Impact of Steep Trendelenburg Position on Intraocular Pressure.Journal of clinical medicine · 2022Review
- Laparoscopic gynaecological surgery in the context of maintaining normal intracranial pressure.BMJ case reports · 2021Article
- Effect of intra-abdominal hypertension on the intraocular pressure of the conscious dogs.Veterinary medicine and science · 2021Article
- The effect of colonoscopy on intraocular pressure: an observational prospective study.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2020Observational
- Intraocular pressure change during laparoscopic sacral colpopexy in patients with normal tension glaucoma.International urogynecology journal · 2019Article
- Evaluating the Variation of Intraocular Pressure With Positional Change During Colorectal Laparoscopic Surgery: Observational Study.JMIR perioperative medicine · 2018Article
- Ocular parameters before and after steep Trendelenburg positioning for robotic-assisted laparoscopic radical prostatectomy.Clinical ophthalmology (Auckland, N.Z.) · 2017Article
- Increase in intraocular pressure is less with propofol and remifentanil than isoflurane with remifentanil during cataract surgery: A randomized controlled trial.Advanced biomedical research · 2015Article
- Intraocular Pressure Changes With Positioning During Laparoscopy.JSLS : Journal of the Society of Laparoendoscopic SurgeonsArticle
- Late Onset of CSF Rhinorrhea in a Postoperative Transsphenoidal Surgery Patient Following Robotic-Assisted Abdominal Hysterectomy.Journal of investigative medicine high impact case reportsArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe potential effects of laparoscopic surgery on intra- and postoperative intraocular pressure (IOP) are not completely understood. Although prior studies have reported that pneumoperitoneum may increase IOP, it is not clear whether this increase is related to the effects of pneumoperitoneum or to the patient's position, such as the Trendelenburg position. This study aimed to evaluate the potential fluctuations of IOP during colorectal laparoscopic surgery in two groups of patients: those with and those without Trendelenburg positioning.
methodsFor this prospective study 45- to 85-year-old patients undergoing laparoscopic colorectal surgery were enrolled after a thorough ophthalmologic assessment. The study protocol included measurement of IOP at eight different time points (before, during, and after surgery) using a contact tonometer in both eyes.
resultsThe study enrolled 29 patients: 17 (58.6%) with Trendelenburg position placement during surgery and 12 (41.4%) without Trendelenburg positioning. The two groups did not differ in terms of gender, age, body mass index (BMI), American Society of Anesthesiology (ASA) class, or operative time. In all the patients, pneumoperitoneum induction led to a mild rise in IOP, averaging 4.1 mmHg. The patients with Trendelenburg positioning showed a greater increase than the patients without it (5.05 vs 4.23 mmHg at 45 min; p = 0.179), but IOP evaluation 48 h after surgery showed no substantial differences between the two groups. Among the 29 patients, 17 (58.6%) showed an increase in IOP of 5 mmHg or more during surgery. A greater percentage of the patients who underwent Trendelenburg positioning showed an IOP increase of 5 mmHg or more (76.5 vs 33.3%; p = 0.020). At the multivariate analysis, no potential predictors of increased IOP during surgery was identified.
conclusionsStandard pneumoperitoneum (≤14 mmHg) led to mild and reversible IOP increases. A trend was observed toward a greater IOP increase in patients with Trendelenburg positioning. Thus, the patient's position during surgery may represent a stronger risk factor for IOP increase than pneumoperitoneum-related intraabdominal pressure.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.