Determining the precise level of lower limb amputation using photoluminescence spectroscopy
- Authors: Vaganov A.G.1, Kuznetsov M.R.2, Artykov A.B.3, Anisimova A.V.2, Nasritdinkhodjaev A.O.2
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Affiliations:
- City Clinical Hospital No. 29 named after N.E. Bauman
- The First Sechenov Moscow State Medical University
- Medical center ALLORO
- Issue: Vol 106, No 1 (2025)
- Pages: 129-138
- Section: Clinical experiences
- URL: https://ogarev-online.ru/kazanmedj/article/view/286135
- DOI: https://doi.org/10.17816/KMJ642025
- ID: 286135
Cite item
Abstract
BACKGROUND: The development of new and more precise methods for determining the boundary between necrotic and viable tissue is essential for accurately determining the level of amputation.
AIM: The study aimed to evaluate the first results of ultraviolet photoluminescence spectroscopy in determining the level of the proposed amputation of the lower limb.
METHODS: This prospective, open-label, and non-randomized study included 20 patients with critical lower limb ischemia and suspected toe gangrene who underwent percutaneous transluminal balloon angioplasty. The patients were divided into two groups. Group 1 (n = 10) included patients who did not require major limb amputation during follow-up, whereas group 2 (n = 10) included patients who underwent above-knee amputation during follow-up. The groups were comparable in age (62.5 [53.25; 74.5] years in group 1; 65.5 [60.5; 76] years in group 2; p = 0.352). All patients underwent clinical monitoring and serial photoluminescence measurements of the affected limb using a device composed of a laser radiation source (diode laser) as the excitation signal and a mini-spectrometer for signal detection. Measurements were performed during hospitalization and at re-admission. The luminescence amplitude was correlated with the clinical manifestations of critical limb ischemia during inpatient treatment and at follow-up hospitalization. A one-month post-discharge telephone follow-up was conducted to monitor patient status. In cases of recurrent critical ischemia and gangrene progression, patients were re-hospitalized for above-knee re-amputation. The results are presented as mean values, standard deviations, or medians with the 25th and 75th percentiles.
RESULTS: Following vascular reconstruction of the affected limb, a statistically significant decrease in luminescence amplitude was observed at 400 and 420 nm (nicotinamide adenine dinucleotide peak) and 450 nm (negative hemoglobin peak) in group 1 compared with preoperative levels in the critical ischemia zone (98.5 [52.9; 508.6] × 10⁵ photons before surgery; 81.5 [42.9; 117.4] × 10⁵ photons after surgery; p = 0.001]). No significant amplitude changes were observed in group 2 before and after surgery (p = 0.245). In the gangrene zone, all amplitude values at 400–600 nm exhibited minimal intensity values. Near the visible boundary between necrotic and healthy tissue, a sharp increase in photoluminescence amplitude was detected, with a difference of 81.2 (42.9; 120.4) × 10⁵ photons at 450 nm.
CONCLUSION: Laser-induced ultraviolet photoluminescence spectroscopy may serve as a potential method for determining the precise level of amputation in cases of dry gangrene of the lower limb.
Full Text
##article.viewOnOriginalSite##About the authors
Alexey G. Vaganov
City Clinical Hospital No. 29 named after N.E. Bauman
Author for correspondence.
Email: aleksejvaganov4@gmail.com
ORCID iD: 0000-0001-8191-2551
SPIN-code: 2202-0746
MD, Cand. Sci. (Med.), surgeon
Russian Federation, 2 Hospital Square, 105094 MoscowMaxim R. Kuznetsov
The First Sechenov Moscow State Medical University
Email: mrkuznetsov@mail.com
ORCID iD: 0000-0001-6926-6809
SPIN-code: 7146-1348
Institute of Cluster Oncology named after L.L. Levshin; MD, Dr. Sci. (Med.), Prof., Deputy Director
Russian Federation, MoscowAzat B. Artykov
Medical center ALLORO
Email: artykov.azat@yandex.ru
ORCID iD: 0009-0005-6154-0531
surgeon
Russian Federation, FryazinoAlexandra V. Anisimova
The First Sechenov Moscow State Medical University
Email: sasha.anisimova.98@bk.ru
ORCID iD: 0009-0006-2940-5118
Institute of Clinical Medicine named after. N.V. Sklifosovsky; Clinical Resident
Russian Federation, MoscowAshrafulla O. Nasritdinkhodjaev
The First Sechenov Moscow State Medical University
Email: zoratustra87@ya.ru
ORCID iD: 0009-0000-4035-2543
Institute of Clinical Medicine named after. N.V. Sklifosovsky; Clinical Resident
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