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Paolucci T, Pino V, Elsallabi O, Gallorini M, Pozzato G, Pozzato A, Lanuti P, Reis VM, Pesce M, Pantalone A, Buda R, Patruno A. Quantum Molecular Resonance Inhibits NLRP3 Inflammasome/Nitrosative Stress and Promotes M1 to M2 Macrophage Polarization: Potential Therapeutic Effect in Osteoarthritis Model In Vitro. Antioxidants (Basel) 2023; 12:1358. [PMID: 37507898 PMCID: PMC10376596 DOI: 10.3390/antiox12071358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
This study aimed to investigate the anti-inflammatory effects of Quantum Molecular Resonance (QMR) technology in an in vitro model of osteoarthritis-related inflammation. The study used THP-1-derived macrophages stimulated with lipopolysaccharide and hyaluronic acid fragments to induce the expression of inflammatory cytokines and nitrosative stress. QMR treatment inhibited COX-2 and iNOS protein expression and activity and reduced NF-κB activity. Furthermore, QMR treatment led to a significant reduction in peroxynitrite levels, reactive nitrogen species that can form during inflammatory conditions, and restored tyrosine nitration values to those similar to sham-exposed control cells. We also investigated the effect of QMR treatment on inflammasome activation and macrophage polarization in THP-1-derived macrophages. Results showed that QMR treatment significantly decreased NLRP3 and activated caspase-1 protein expression levels and downregulated IL-18 and IL-1β protein expression and secretion. Finally, our findings indicate that QMR treatment induces a switch in macrophage polarization from the M1 phenotype to the M2 phenotype.
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Affiliation(s)
- Teresa Paolucci
- Department of Oral, Medical and Biotechnological Sciences, Physical Medicine and Rehabilitation, University G. D'Annunzio, 66100 Chieti, Italy
| | - Vanessa Pino
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
| | - Osama Elsallabi
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
- Institute on the Biology of Aging and Metabolism and Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455, USA
| | - Marialucia Gallorini
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
| | | | | | - Paola Lanuti
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
| | - Victor Machado Reis
- Research Centre in Sport Sciences, Health Sciences and Human Development, 5001-801 Vila Real, Portugal
| | - Mirko Pesce
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
| | - Andrea Pantalone
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
| | - Roberto Buda
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
| | - Antonia Patruno
- Department of Medicine and Aging Sciences, University "G. d'Annunzio" of Chieti-Pescara, 66100 Chieti, Italy
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Catanzaro D, Milani G, Bozza A, Bernardi M, Chieregato K, Menarin M, Merlo A, Celli P, Belli R, Peroni D, Pozzato A, Pozzato G, Raneri FA, Volpin L, Ruggeri M, Astori G. Selective cell cycle arrest in glioblastoma cell lines by quantum molecular resonance alone or in combination with temozolomide. Br J Cancer 2022; 127:824-835. [PMID: 35715634 PMCID: PMC9427848 DOI: 10.1038/s41416-022-01865-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 05/02/2022] [Accepted: 05/12/2022] [Indexed: 11/16/2022] Open
Abstract
Background Glioblastoma is the most aggressive form of brain cancer, characterised by high proliferation rates and cell invasiveness. Despite advances in surgery and radio-chemotherapy, patients continue to have poor prognoses, with a survival rate of 14–15 months. Thus, new therapeutic strategies are needed. Non-ionising electromagnetic fields represent an emerging option given the potential advantages of safety, low toxicity and the possibility to be combined with other therapies. Methods Here, the anticancer activity of quantum molecular resonance (QMR) was investigated. For this purpose, three glioblastoma cell lines were tested, and the QMR effect was evaluated on cancer cell proliferation rate and aggressiveness. To clarify the QMR mechanism of action, the proteomic asset after stimulation was delineated. Mesenchymal stromal cells and astrocytes were used as healthy controls. Results QMR affected cancer cell proliferation, inducing a significant arrest of cell cycle progression and reducing cancer tumorigenicity. These parameters were not altered in healthy control cells. Proteomic analysis suggested that QMR acts not only on DNA replication but also on the machinery involved in the mitotic spindle assembly and chromosome segregation. Moreover, in a combined therapy assessment, QMR significantly enhanced temozolomide efficacy. Conclusions QMR technology appears to be a promising tool for glioblastoma treatment.
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Affiliation(s)
- Daniela Catanzaro
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy.,CORIS, Consorzio per la Ricerca Sanitaria, Via N. Giustiniani, 2, 35128, Padova, Italy
| | - Gloria Milani
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy.,CORIS, Consorzio per la Ricerca Sanitaria, Via N. Giustiniani, 2, 35128, Padova, Italy
| | - Angela Bozza
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy.,CORIS, Consorzio per la Ricerca Sanitaria, Via N. Giustiniani, 2, 35128, Padova, Italy
| | - Martina Bernardi
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy.,CORIS, Consorzio per la Ricerca Sanitaria, Via N. Giustiniani, 2, 35128, Padova, Italy
| | - Katia Chieregato
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy.,CORIS, Consorzio per la Ricerca Sanitaria, Via N. Giustiniani, 2, 35128, Padova, Italy
| | - Martina Menarin
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | - Anna Merlo
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | - Paola Celli
- Genetic Unit, Vicenza Hospital, Vicenza, Italy
| | - Romina Belli
- Mass Spectrometry and Proteomics Facility, Department of Cellular, Computational and Integrative Biology, CIBIO University of Trento, Trento, Italy
| | - Daniele Peroni
- Mass Spectrometry and Proteomics Facility, Department of Cellular, Computational and Integrative Biology, CIBIO University of Trento, Trento, Italy
| | | | | | | | - Lorenzo Volpin
- Department of Neurosurgery, Vicenza Hospital, Vicenza, Italy
| | | | - Giuseppe Astori
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy.
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Tseng HY, Huang TY, Lin YC, Wang JJ, Ko HY, Chuang CH, Lu IC, Chang PY, Randolph GW, Dionigi G, Chang NC, Wu CW. Safety Parameters of Quantum Molecular Resonance Devices During Thyroid Surgery: Porcine Model Using Continuous Neuromonitoring. Front Endocrinol (Lausanne) 2022; 13:924731. [PMID: 35813650 PMCID: PMC9260785 DOI: 10.3389/fendo.2022.924731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Quantum molecular resonance (QMR) devices have been applied as energy-based devices in many head and neck surgeries; however, research on their use in thyroid surgery is lacking. This study aimed to investigate the safety parameters of QMR devices during thyroidectomy when dissection was adjacent to the recurrent laryngeal nerve (RLN). METHODS This study included eight piglets with 16 RLNs, and real-time electromyography (EMG) signals were obtained from continuous intraoperative neuromonitoring (C-IONM). QMR bipolar scissor (BS) and monopolar unit (MU) were tested for safety parameters. In the activation study, QMR devices were activated at varying distances from the RLN. In the cooling study, QMR devices were cooled for varying time intervals, with or without muscle touch maneuver (MTM) before contacting with the RLN. RESULTS In the activation study, no adverse EMG change occurred when QMR BS and MU were activated at distances of 2 mm or longer from the RLNs. In the cooling study, no adverse EMG change occurred when QMR BS and MU were cooled in 2-second intervals or immediately after MTM. CONCLUSION QMR devices should be carefully used when performing RLN dissection during thyroid surgery. According to the activation and cooling safety parameters in this study, surgeons can avoid RLN injury by following standard procedures when using QMR devices.
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Affiliation(s)
- Hsin-Yi Tseng
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tzu-Yen Huang
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Chu Lin
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jia Joanna Wang
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Otorhinolaryngology-Head and Neck Surgery, Kaohsiung Municipal Siaogang Hospital, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - How-Yun Ko
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Hsun Chuang
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - I-Cheng Lu
- Department of Anesthesiology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University Hospital, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pi-Ying Chang
- Department of Anesthesiology, Kaohsiung Municipal Tatung Hospital, Kaohsiung Medical University Hospital, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Gregory W. Randolph
- Division of Thyroid and Parathyroid Endocrine Surgery, Department of Otolaryngology—Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States
| | - Gianlorenzo Dionigi
- Division of General Surgery, Endocrine Surgery Section, Istituto Auxologico Italiano (IRCCS), Milan, Italy
- Department of Pathophysiology and Transplantation, Faculty of Medicine and Surgery, University of Milan, Milan, Italy
| | - Ning-Chia Chang
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Otorhinolaryngology-Head and Neck Surgery, Kaohsiung Municipal Siaogang Hospital, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- *Correspondence: Ning-Chia Chang,
| | - Che-Wei Wu
- Department of Otorhinolaryngology-Head and Neck Surgery, International Thyroid Surgery Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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Zhu Z, Liu N, Xia W, Liu H, Wood KB, Wang K. Bacteria in Surgical Smoke: A Self-controlled Laboratory Study Using Porcine Spinal Tissues. Spine (Phila Pa 1976) 2021; 46:E1230-E1237. [PMID: 33907080 DOI: 10.1097/brs.0000000000004079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A laboratory study performed in a self-controlled fashion. OBJECTIVE The aim of this study was to examine whether "surgical smoke" generated by using the electrocautery on porcine spinal tissues could contain viable bacteria. SUMMARY OF BACKGROUND DATA The year 2020 has seen a surge in legislation regarding surgical smoke evacuation in the operating room across the United States. Surgical smoke contains numerous toxic and carcinogenic substances, which spine surgeons and operating room staff are regularly exposed to. Although the smoke's chemical toxicity has been extensively studied, little is known about its biohazard level. METHODS The electrocautery was used to "operate on" 20 segments of porcine spinal tissues on a clean bench. In each operation, the generated smoke was captured with a swab, which was positioned above the surgical site and within the smoke, to obtain bacteria cultures. Two other swabs-a tissue swab (swabbing the porcine tissue itself) and a blank swab (swabbing an empty sterile bowl)-were collected as controls. The culture results were compared among the three groups. An additional experiment was conducted to see whether using a mask can reduce the "infection rate" of the swab. RESULTS Although all blank swabs tested negative, 95% (19/20) of the smoke swabs tested positive, with a total of nine bacteria species identified. The most prevalent species observed in the smoke swabs included Serratia liquefaciens, Lactococcus garvieae, and Hafnia alvei, and so on. Among the positive smoke swabs, 84% (16/19) had one or more bacteria species that were consistent with the cultures of their corresponding tissue swabs. Using a surgical or N95 mask reduced the "infection rate" of the swab. CONCLUSION "Surgical smoke" generated by electrocauterization of porcine spinal tissues contains viable bacteria. Further research in actual spine surgery is needed next.Level of Evidence: N/A.
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Affiliation(s)
- Zhenqi Zhu
- Peking University People's Hospital, Department of Spine Surgery, Beijing, China
| | - Ning Liu
- Department of Orthopedic Surgery, Stanford University Medical Center, Redwood City, CA
| | - Weiwei Xia
- Peking University People's Hospital, Department of Spine Surgery, Beijing, China
| | - Haiying Liu
- Peking University People's Hospital, Department of Spine Surgery, Beijing, China
| | - Kirkham B Wood
- Department of Orthopedic Surgery, Stanford University Medical Center, Redwood City, CA
| | - Kaifeng Wang
- Peking University People's Hospital, Department of Spine Surgery, Beijing, China
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Sella S, Adami V, Amati E, Bernardi M, Chieregato K, Gatto P, Menarin M, Pozzato A, Pozzato G, Astori G. In-vitro analysis of Quantum Molecular Resonance effects on human mesenchymal stromal cells. PLoS One 2018; 13:e0190082. [PMID: 29293552 PMCID: PMC5749755 DOI: 10.1371/journal.pone.0190082] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 12/07/2017] [Indexed: 01/08/2023] Open
Abstract
Electromagnetic fields play an essential role in cellular functions interfering with cellular pathways and tissue physiology. In this context, Quantum Molecular Resonance (QMR) produces waves with a specific form at high-frequencies (4–64 MHz) and low intensity through electric fields. We evaluated the effects of QMR stimulation on bone marrow derived mesenchymal stromal cells (MSC). MSC were treated with QMR for 10 minutes for 4 consecutive days for 2 weeks at different nominal powers. Cell morphology, phenotype, multilineage differentiation, viability and proliferation were investigated. QMR effects were further investigated by cDNA microarray validated by real-time PCR. After 1 and 2 weeks of QMR treatment morphology, phenotype and multilineage differentiation were maintained and no alteration of cellular viability and proliferation were observed between treated MSC samples and controls. cDNA microarray analysis evidenced more transcriptional changes on cells treated at 40 nominal power than 80 ones. The main enrichment lists belonged to development processes, regulation of phosphorylation, regulation of cellular pathways including metabolism, kinase activity and cellular organization. Real-time PCR confirmed significant increased expression of MMP1, PLAT and ARHGAP22 genes while A2M gene showed decreased expression in treated cells compared to controls. Interestingly, differentially regulated MMP1, PLAT and A2M genes are involved in the extracellular matrix (ECM) remodelling through the fibrinolytic system that is also implicated in embryogenesis, wound healing and angiogenesis. In our model QMR-treated MSC maintained unaltered cell phenotype, viability, proliferation and the ability to differentiate into bone, cartilage and adipose tissue. Microarray analysis may suggest an involvement of QMR treatment in angiogenesis and in tissue regeneration probably through ECM remodelling.
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Affiliation(s)
- Sabrina Sella
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | - Valentina Adami
- High Throughput Screening Core Facility, Center for Integrative Biology, University of Trento, Trento, Italy
| | - Eliana Amati
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | - Martina Bernardi
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
- Hematology Project Foundation, Vicenza, Italy
| | - Katia Chieregato
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
- Hematology Project Foundation, Vicenza, Italy
| | - Pamela Gatto
- High Throughput Screening Core Facility, Center for Integrative Biology, University of Trento, Trento, Italy
| | - Martina Menarin
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
| | | | | | - Giuseppe Astori
- Advanced Cellular Therapy Laboratory, Hematology Unit, Vicenza Hospital, Vicenza, Italy
- * E-mail:
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Francis DO, Fonnesbeck C, Sathe N, McPheeters M, Krishnaswami S, Chinnadurai S. Postoperative Bleeding and Associated Utilization following Tonsillectomy in Children. Otolaryngol Head Neck Surg 2017; 156:442-455. [PMID: 28094660 PMCID: PMC5639328 DOI: 10.1177/0194599816683915] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 11/22/2016] [Indexed: 01/21/2023]
Abstract
Objective To assess posttonsillectomy hemorrhage (PTH), associated nonoperative readmissions/revisits, and reoperations in children. Data Sources MEDLINE, EMBASE, and the Cochrane Library. Review Methods Two investigators independently screened studies against predetermined criteria and extracted key data. Investigators independently assessed study risk of bias and the strength of the evidence of the body of literature. We calculated unadjusted pooled estimates of PTH frequency and conducted a Bayesian meta-analysis to estimate frequency of primary and secondary PTH and PTH-associated reoperation and revisits/readmissions by partial and total tonsillectomy and surgical approach. Results In meta-analysis, the frequency of primary and secondary PTH associated with total and partial tonsillectomy was <4% for any technique and with overlapping confidence bounds. Pooled frequencies of PTH were also <5% overall (4.2% for total tonsillectomy, 1.5% for partial tonsillectomy) in comparative studies. Fewer PTH episodes occurred with tonsillectomy for obstructive sleep-disordered breathing than for throat infection. In meta-analysis, frequency of PTH-associated nonoperative revisits/readmission or reoperation ranged from 0.2% to 5.7% for total tonsillectomy and from 0.1% to 3.7% for partial tonsillectomy. At least 4 deaths were reported in case series including 1,778,342 children. Conclusions PTH occurred in roughly 4% of tonsillectomies in studies included in this review. Although studies typically did not report bleeding severity or amount, relatively few episodes of PTH necessitated reoperation for hemostasis. Nonetheless, tonsillectomy is not without risk of harm. Frequency of PTH across techniques was similar; thus, we cannot conclude that a given technique is superior.
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Affiliation(s)
- David O. Francis
- Department of Otolaryngology, Vanderbilt University Medical Center
| | - Chris Fonnesbeck
- Department of Biostatistics, Vanderbilt University Medical Center
| | - Nila Sathe
- Department of Health Policy, Vanderbilt Evidence-based Practice Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center
| | - Melissa McPheeters
- Department of Health Policy, Vanderbilt Evidence-based Practice Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center
| | - Shanthi Krishnaswami
- Vanderbilt Evidence-based Practice Center, Institute for Medicine and Public Health, Vanderbilt University Medical Center
| | - Siva Chinnadurai
- Department of Otolaryngology, Vanderbilt University Medical Center
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Demirhan E, Çukurova İ, Arslan İB, Ozkan ET, Mengi E, Yigitbasi OG. Quantum molecular resonance-assisted phonomicrosurgery: preliminary experience. Otolaryngol Head Neck Surg 2014; 152:189-92. [PMID: 25214549 DOI: 10.1177/0194599814549729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The objective of this study was to evaluate the use of quantum molecular resonance (QMR) energy in phonomicrosurgery. Quantum molecular resonance energy (QMRE) is an innovative technology that provides low temperature cutting and coagulation of tissues and causes minimal tissue damage during the procedure. Because of these features, this technology may offer new possibilities in phonomicrosurgery. Twelve patients with vocal fold polyps underwent QMR-assisted phonomicrosurgery. The patients were evaluated before and after surgery at 1 and 3 months postoperatively by using the voice handicap index, laryngeal stroboscopy rating, acoustic voice analysis, and perceptual voice evaluation. The subjects were also evaluated by a patient self-assessment questionnaire at 3 months postoperatively. All parameters significantly improved after QMR-assisted phonomicrosurgery (P < .05). All of the patients also subjectively improved by self-rating. These results suggest that QMRE is a safe and potentially promising treatment in phonomicrosurgery. Yet, further studies should be conducted to confirm these results.
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Affiliation(s)
- Erhan Demirhan
- Department of Speech and Language Pathology, Anadolu University Faculty of Health Sciences, Eskisehir, Turkey Department of Otorhinolaryngology, Tepecik Training and Research Hospital, Izmir, Turkey
| | - İbrahim Çukurova
- Department of Otorhinolaryngology, Tepecik Training and Research Hospital, Izmir, Turkey
| | - İlker Burak Arslan
- Department of Otorhinolaryngology, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Elcin Tadihan Ozkan
- Department of Speech and Language Pathology, Anadolu University Faculty of Health Sciences, Eskisehir, Turkey
| | - Erdem Mengi
- Department of Otorhinolaryngology, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Orhan Gazi Yigitbasi
- Department of Otorhinolaryngology, Tepecik Training and Research Hospital, Izmir, Turkey Medipol University Mega Hospital, Istanbul, Turkey
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D'Eredità R. Molecular resonance tonsillectomy in children: comparative study over standard techniques in an 11-year study. Otolaryngol Head Neck Surg 2014; 151:861-7. [PMID: 25091192 DOI: 10.1177/0194599814545458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Learn the molecular resonance (MR) technology for tonsillectomy. An analysis of outcomes of MR compared to standard cold-knife (CK) and monopolar cautery (MPC) for pediatric tonsillectomy offers new possibilities, lowering postoperative morbidity. STUDY DESIGN Eleven-year, prospective, randomized, 3-group trial. SETTING Tertiary care pediatric institution. SUBJECTS AND METHODS Eight hundred and seventy-three children undergoing adenotonsillectomy were randomly assigned to MR (n = 283), CK (n = 279), or MPC (n = 279) techniques. Outcome measures included intraoperative time, blood loss, postoperative pain, weight loss, and histopathologic examination on excised tonsils. RESULTS Histopathologic evaluation revealed reduced thermal injury with MR over MPC (43 µm vs 186, P < .001), statistically associated with reduced muscular, blood vessel, and nerve fiber damage compared to CK (P < .001). Blood loss was minimal in MR. Significant reduced pain scores were related to MR (P < .002). Two MR, 15 CK, and 12 MPC patients experienced delayed bleeding. CONCLUSION MR for pediatric tonsillectomy resulted in reduced histopathologic thermal injury, lower pain scores, and reduced postoperative morbidity compared with CK and MPC techniques in an 11-year study.
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Affiliation(s)
- Riccardo D'Eredità
- Division of Pediatric Otolaryngology, Department of Otorhinolaryngology, Head and Neck Surgery, Vicenza Civil Hospital, Vicenza, Italy
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Preemptive peritonsillar infiltration with lidocaine for relief of bipolar adult post-tonsillectomy pain: a randomized, double-blinded clinical study. Eur Arch Otorhinolaryngol 2013; 270:3195-8. [PMID: 23665671 DOI: 10.1007/s00405-013-2549-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 04/30/2013] [Indexed: 10/26/2022]
Abstract
There are discordant results in the studies of the peritonsillar infiltration in adults undergoing the tonsillectomy. The study is to compare the effect of the preemptive peritonsillar infiltration with lidocaine in bipolar tonsillectomy in adult. 172 adult patients were randomly located into five groups before tonsillectomy: group 0: without the peritonsillar infiltration, group 1: for 3 ml normal saline with 1:200,000 epinephrine per tonsil, group 2: for 3 ml 1 %lidocaine with 1:200,000 epinephrine per tonsil, group 3: for 8 ml normal saline with 1:200,000 epinephrine per tonsil, group 4: for 8 ml lidocaine with 1:200,000 epinephrine per tonsil. The post-operative pain in the following 7 days was assessed by visual analog scale. Operation time and post-operative bleeding were also recorded. No significant differences were found between operative times, post-tonsillectomy hemorrhage between the five groups. The differences between pain scores of the group 0, group 1 and group 2 were not statistically significant (P > 0.05). The differences between pain scores of group 3, group 4 against group 0, group 1, group 2 were statistically significant (P < 0.05). We found the volume of peritonsillar infiltration might contribute to the relief of pain of the bipolar post-tonsillectomy.
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