Evidence map›Paper›PMID 33920827›Full record

ArticleDiagnostics (Basel, Switzerland)2021

Prospects of Intraoperative Multimodal OCT Application in Patients with Acute Mesenteric Ischemia.

Elena Kiseleva, Maxim Ryabkov, Mikhail Baleev, Evgeniya Bederina, Pavel Shilyagin, Alexander Moiseev, Vladimir Beschastnov, Ivan Romanov, Grigory Gelikonov, Natalia Gladkova

Open access · goldAbstract read
In one paragraph

Article in Diagnostics (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
3.1field-weighted citation impact, top 8% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 19 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Elena KiselevaInstitute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603950 Nizhny Novgorod, Russia.ORCID 0000-0003-4769-417X
Maxim RyabkovThermal Injury Group, University Clinic, Privolzhsky Research Medical University, 18/1 Verkhnevolzhskaya Naberezhnaja, 603155 Nizhny Novgorod, Russia.
Mikhail BaleevCity Clinical Hospital No.30, 85A Berezovskaya St., 605157 Nizhny Novgorod, Russia.
Evgeniya BederinaThe Department of Pathology, University Clinic, Privolzhsky Research Medical University, 18/1 Verkhnevolzhskaya Naberezhnaja, 603155 Nizhny Novgorod, Russia.ORCID 0000-0001-5368-8396
Pavel ShilyaginInstitute of Applied Physics of the RAS, 46 Ulyanova St., 603950 Nizhny Novgorod, Russia.
Alexander MoiseevInstitute of Applied Physics of the RAS, 46 Ulyanova St., 603950 Nizhny Novgorod, Russia.
Vladimir BeschastnovCity Clinical Hospital No.30, 85A Berezovskaya St., 605157 Nizhny Novgorod, Russia.
Ivan RomanovCity Clinical Hospital No.30, 85A Berezovskaya St., 605157 Nizhny Novgorod, Russia.
Grigory GelikonovInstitute of Applied Physics of the RAS, 46 Ulyanova St., 603950 Nizhny Novgorod, Russia.
Natalia GladkovaInstitute of Experimental Oncology and Biomedical Technologies, Privolzhsky Research Medical University, 10/1 Minin and Pozharsky Sq., 603950 Nizhny Novgorod, Russia.
Privolzhsky Research Medical University · RUCity Clinical Hospital No. 2 · RUInstitute of Applied Physics · RU

Funding

Russian Science Foundation 19-75-10096State task for IAP RAS 0030-2021-0013
6 · The paper itself

Abstract

introductionDespite the introduction of increasingly multifaceted diagnostic techniques and the general advances in emergency abdominal and vascular surgery, the outcome of treatment of patients with acute impaired intestinal circulation remains unsatisfactory. The non-invasive and high-resolution technique of optical coherence tomography (OCT) can be used intraoperatively to assess intestine viability and associated conditions that frequently emerge under conditions of impaired blood circulation. This study aims to demonstrate the effectiveness of multimodal (MM) OCT for intraoperative diagnostics of both the microstructure (cross-polarization OCT mode) and microcirculation (OCT angiography mode) of the small intestine wall in patients with acute mesenteric ischemia (AMI). METHODS AND

participantsA total of 18 patients were enrolled in the study. Nine of them suffered from AMI in segments II-III of the superior mesenteric artery (AMI group), whereby the ischemic segments of the intestine were examined. Nine others were operated on for adenocarcinoma of the colon (control group), thus allowing areas of their normal small intestine to be examined for comparison. Data on the microstructure and microcirculation in the walls of the small intestine were obtained intraoperatively from the side of the serous membrane using the MM OCT system (IAP RAS, Russia) before bowel resection. The MM OCT data were compared with the results of histological examination.

resultsThe study finds that MM OCT visualized the damage to serosa, muscularis externa, and blood vessels localized in these layers in 100% of AMI cases. It also visualized the submucosa in 33.3% of AMI cases. The MM OCT images of non-ischemic (control group), viable ischemic, and necrotic small intestines (AMI group) differed significantly across stratification of the distinguishable layers, the severity of intermuscular fluid accumulations, and the type and density of the vasculature.

conclusionThe MM OCT diagnostic procedure optimally meets the requirements of emergency surgery. Data on the microstructure and microcirculation of the intestinal wall can be obtained simultaneously in real time without requiring contrast agent injections. The depth of visualization of the intestinal wall from the side of the serous membrane is sufficient to assess the volume of the affected tissues. However, the methodology for obtaining MM OCT data needs to be improved to minimize the motion artefacts generated in actual clinical conditions.

Indexed as

acute mesenteric ischemia (AMI)gut vitalityimage assessmentintraoperative diagnosticsoptical coherence tomography angiography (OCTA)optical coherence tomography (OCT)

Identifiers

PMID33920827
PMCPMC8071199
OpenAlexW3154701434

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Registered trials

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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.