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Ismail T, Padilla P, Kurlander DE, Corkum JP, Hanasono MM, Garvey PB, Chang EI, Yu P, Largo RD. Profunda Artery Perforator Flap Tongue Reconstruction: An Effective and Safe Alternative to the Anterolateral Thigh Flap. Plast Reconstr Surg 2024; 153:1191e-1200e. [PMID: 37384852 DOI: 10.1097/prs.0000000000010890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
BACKGROUND The anterolateral thigh (ALT) perforator flap is a workhorse flap for tongue reconstruction. The authors present an alternative option using the profunda artery perforator (PAP) flap for glossectomy reconstruction compared with the ALT flap. METHODS A retrospective review was conducted of 65 patients who underwent subtotal or total glossectomy reconstruction between 2016 and 2020 (46 ALT versus 19 PAP flaps). Flap volume was assessed using computed tomography scans at two different time points. Quality of life and functional outcomes were measured using the MD Anderson Symptom Inventory for Head and Neck Cancer. RESULTS Patients receiving a PAP flap had significantly lower body mass index compared with those receiving an ALT flap (22.7 ± 5.0 versus 25.8 ± 5.1; P = 0.014). Donor-site and recipient-site complications were similar, as was the mean flap volume 7 months after surgery (30.9% for ALT versus 28.1% for PAP; P = 0.93). Radiation and chemotherapy did not appear to have a significant effect on flap volume change over time. The most frequently reported high-severity items in MD Anderson Symptom Inventory for Head and Neck Cancer were swallowing/chewing and voice/speech for both cohorts. Patients who had reconstruction with a PAP flap had significantly better swallowing function ( P = 0.034). CONCLUSIONS Both the PAP and ALT flaps appear to be safe and effective choices for subtotal and total tongue reconstruction. The PAP flap can serve as an alternative donor site, especially in patients with low body mass index and thin lateral-thigh thickness undergoing reconstruction of extensive glossectomy defects. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, III.
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Affiliation(s)
- Tarek Ismail
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
| | - Pablo Padilla
- Division of Plastic Surgery, University of Texas Medical Branch
| | - David E Kurlander
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
| | - Joseph P Corkum
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
| | - Matthew M Hanasono
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
| | - Patrick B Garvey
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
| | - Edward I Chang
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
| | - Peirong Yu
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
| | - Rene D Largo
- From the Department of Plastic and Reconstructive Surgery, University of Texas MD Anderson Cancer Center
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Speck NE, Haumer A, Pfister P, Muller L, Gahl B, Burger M, Largo RD, Schaefer DJ, Ismail T. Neurotized profunda artery perforator flap for subtotal tongue reconstruction - Prospective case series. J Plast Reconstr Aesthet Surg 2024; 95:35-42. [PMID: 38875869 DOI: 10.1016/j.bjps.2024.05.028] [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: 03/15/2024] [Revised: 05/05/2024] [Accepted: 05/24/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Total or subtotal glossectomy defects cause significant functional deficits in swallowing and speech and subsequently impair patients' quality of life (QOL). Recently, the profunda artery perforator (PAP) flap has emerged as a potential alternative for reconstructing extensive glossectomy defects. While previous studies assessing recovery of neurotized anterolateral thigh (ALT) flaps in head and neck reconstruction reported superior sensory recovery, improved swallow function, and improved overall patient satisfaction in patients with neurotized flaps vs. non-neurotized ALT flap reconstruction, PAP flap neurotization has not been described and systematically assessed in head and neck patients. METHODS Six patients underwent subtotal tongue reconstruction with neurotized PAP flaps at the authors' institution from May 2022 until August 2023. A branch of the posterior femoral cutaneous nerve of the PAP flap was coaptated to the lingual nerve. Two-point discrimination, Semmes-Weinstein monofilament, pain, and temperature assessments were conducted at 3, 6, and 12 months postoperatively on the neo-tongue. The MD Anderson speech and deglutition scales and the EORTC-QLQ-H&N35 were used to record functional outcomes and QOL. RESULTS The mean age was 69 ± 4 years, and the mean body mass index was 25 ± 7 kg/m2. Neo-tongue median 2-point discrimination at the tip improved from >10 mm at 3 months to 6 mm at 12 months. All patients had protective pain and temperature perception at the neo-tongue tip at the 6-month follow-up. Speech and swallowing functions were similar at the 12-month follow-up to data on neurotized ALT flaps from literature. No neuropathic pain was reported at the donor site at the 6-month follow-up. CONCLUSIONS This is the first case series of PAP flap neurotization in head and neck patients, suggesting potential functional advantages with minimal donor-site morbidity. LEVEL OF EVIDENCE V Case Series.
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Affiliation(s)
- Nicole E Speck
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital, Basel, Switzerland
| | - Alexander Haumer
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital, Basel, Switzerland
| | - Pablo Pfister
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital, Basel, Switzerland
| | - Laurent Muller
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, Basel, Switzerland
| | - Brigitta Gahl
- Surgical Outcome Research Center, University Hospital, Basel, Switzerland
| | - Maximilian Burger
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital, Basel, Switzerland
| | - Rene D Largo
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Dirk J Schaefer
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital, Basel, Switzerland; Faculty of Medicine, University of Basel, Switzerland
| | - Tarek Ismail
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital, Basel, Switzerland.
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Pfister P, Speck NE, Gahl B, Muller L, Fürst T, Kappos EA, Schaefer DJ, Largo RD, Ismail T. Impact of adjuvant radiochemotherapy on free flap volume in head and neck reconstruction: A systematic review and meta-analysis. J Plast Reconstr Aesthet Surg 2024; 91:24-34. [PMID: 38401274 DOI: 10.1016/j.bjps.2024.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/08/2023] [Accepted: 02/04/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND Limited data exist regarding the effect of adjuvant radiochemotherapy on free flap volume in head and neck reconstruction. However, an adequate free flap volume is an important predictor of functional and patient-reported outcomes in head and neck reconstruction. METHODS A systematic review of Medline, Embase, and the Cochrane Central Register of Controlled Trials was conducted using the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines. A total of 6710 abstracts were screened, and 36 full-text papers were reviewed. Nineteen studies met the inclusion criteria and were used to extract data for this analysis. RESULTS A meta-analysis of 14 two-arm studies comparing the impact of adjuvant radiotherapy versus no adjuvant radiotherapy was performed. The main analysis revealed that 6 months postoperatively, irradiated flaps showed a significant reduction of volume (average, 9.4%) compared to nonirradiated flaps. The average interpolated pooled flap volumes 6 months postoperatively were 76.4% in irradiated flaps and 81.8% in nonirradiated flaps. After a median postoperative follow-up of 12 months, the total flap volume was 62.6% for irradiated flaps and 76% for nonirradiated flaps. Four studies reported that chemotherapy had no significant impact on free flap volume. CONCLUSIONS Compared to nonirradiated flaps, irradiated flaps were significantly reduced in volume (range, 5% to 15.5%). Clinicians should take this into account when planning the surgical reconstruction of head and neck defects. Conducting large-scale prospective studies with standardized protocols and well-defined follow-up measurements could contribute to defining the ideal, personalized free flap volume for optimal function and patient-reported outcomes.
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Affiliation(s)
- Pablo Pfister
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland
| | - Nicole E Speck
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland
| | - Brigitta Gahl
- Surgical Outcome Research Center Basel, University Hospital Basel, Basel, Switzerland
| | - Laurent Muller
- Department of Ear, Nose and Throat Surgery, University Hospital Basel, Basel, Switzerland
| | - Thomas Fürst
- University Medical Library, University of Basel, Basel, Switzerland
| | - Elisabeth A Kappos
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland
| | - Dirk J Schaefer
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland
| | - Rene D Largo
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Tarek Ismail
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland.
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Mitra S, Panda S, Thakar A, Gautam V, Talukdar KM, Mani S, Singh CA, Sikka K, Kumar R, Das SK, Singh A. Quality of life and swallowing outcomes following major glossectomy: A prospective single-center experience. Head Neck 2024; 46:599-608. [PMID: 38146690 DOI: 10.1002/hed.27612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 12/05/2023] [Accepted: 12/12/2023] [Indexed: 12/27/2023] Open
Abstract
BACKGROUND There exists a lacuna in the structured reporting of swallowing dysfunction and quality of life (QoL) outcome following major glossectomy. METHODS Prospective cohort study to assess the swallowing dysfunction and QoL following STG (subtotal glossectomy) or NTG (near total glossectomy) over a 6-month period using FEES and PAS scale, MDADI, and FACT-HN. RESULTS Twenty-four patients were available for analysis. The pre- and post-adjuvant evaluation revealed a statistically significant improvement in the composite MDADI and FACT-HN scores. Subscale analysis of FACT-HN scores revealed maximum deficit in the head and neck cancer-specific score domain followed by functional domain and social well-being domain, with serial improvement noted in the post-adjuvant setting. CONCLUSION This study showed serial improvement in terms of swallowing dysfunction although social and functional well-being domains related to QoL continued to reveal major deficits. Better outcomes were seen with preservation of bilateral base of tongue and mandible.
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Affiliation(s)
- Sandipta Mitra
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Smriti Panda
- Department of ENT-Oncology, National Cancer Institute-AIIMS, Jhajjar, India
| | - Alok Thakar
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Vimmi Gautam
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Kaustav M Talukdar
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Suresh Mani
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Chirom Amit Singh
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Kapil Sikka
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Rajeev Kumar
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Sumit Kumar Das
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Anup Singh
- Department of Otorhinolaryngology - Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
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Ishida K, Hirayama H, Nukami M, Kodama H, Kishi K, Akutsu T, Miyawaki T. Comparison of complications and functional outcomes following total or subtotal glossectomy with laryngeal preservation using a deep inferior epigastric artery perforator free flap versus a rectus abdominis musculocutaneous free flap. J Plast Reconstr Aesthet Surg 2024; 90:249-258. [PMID: 38387422 DOI: 10.1016/j.bjps.2024.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/14/2023] [Accepted: 01/29/2024] [Indexed: 02/24/2024]
Abstract
OBJECTIVE Wide defects resulting from subtotal or total glossectomy are commonly reconstructed using a bulk flap to maintain oral and speech functions. The flap, including muscle tissue, diminishes with time. This study aimed to compare the surgical outcomes of deep inferior epigastric artery perforator and rectus abdominis musculocutaneous free flap reconstructions after glossectomy with laryngeal preservation. METHODS Medical records of 13 and 26 patients who underwent deep inferior epigastric artery perforator and rectus abdominis musculocutaneous free flap reconstructions, respectively, from 2014 to 2022 at our institution were reviewed. Patients who underwent middle pharynx resection except for the base of the tongue, mandibular bone resection, and sensory reinnervation were excluded. RESULTS The rectus abdominis musculocutaneous groups showed a higher number of lymph node dissection and shorter operative time than the deep inferior epigastric artery perforator groups. No significant differences in postoperative complications or functional oral intake scale scores at 6 months were observed. Volumetric changes on computed tomography images at 6 and 12 months were significantly lower in the deep inferior epigastric artery perforator group. Cancer recurrence was significantly associated with reduced oral function. CONCLUSIONS Oral function in patients with cancer is influenced by various other factors. However, the deep inferior epigastric artery perforator flap may be suitable for tongue reconstruction because of the minimal postoperative changes in flap volume, easy adjustment of flap thickness, elevation of multiple flaps, and minimal complications at the donor site.
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Affiliation(s)
- Katsuhiro Ishida
- Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Haruyuki Hirayama
- Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Masaki Nukami
- Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Hiroki Kodama
- Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Keita Kishi
- Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Taisuke Akutsu
- Department of Otolaryngology Head and Neck Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Takeshi Miyawaki
- Department of Plastic and Reconstructive Surgery, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
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Papanikolas MJ, Hurrell MJL, Clark JR, Low THH, Ch'ng S, Elliott MS, Palme CE, Wykes J. Anterolateral thigh, radial forearm and superficial circumflex iliac perforator flaps in oral reconstruction: a comparative analysis. ANZ J Surg 2023; 93:1335-1340. [PMID: 36629132 DOI: 10.1111/ans.18239] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023]
Abstract
BACKGROUND Anterolateral thigh (ALT) and Radial forearm free flaps (RFFF) are historically the most common methods of oral reconstruction. The Superficial circumflex iliac artery perforator flap (SCIP) is an alternative providing a donor site that can be readily closed primarily with improved cosmesis in younger patients, due to its concealability. METHODS We reviewed 135 patients who received ALT, RFFF or SCIP flaps for oral reconstruction in our institution. Our aim was to compare operative and perioperative outcomes between each cohort. ANOVA and χ2 test were used for statistical analysis. RESULTS There were 37 ALT, 64 RFFF and 35 SCIP reconstructions. Patients reconstructed with SCIP flaps had smaller resection volumes (P < 0.001) and earlier T and N classifications (P = 0.001, P = 0.008), and consequently reduced tracheostomy rates (P < 0.001), reduced need for enteral feeding at discharge (P < 0.001) and shorter length of stay and perioperative times (P < 0.001). SCIP flaps were more common in younger patients (P < 0.01). ALT flaps were used for more advanced disease (P = 0.001) and had larger resection volumes (P < 0.001) and increased need for assisted enteral feeding (P < 0.001). There were no significant differences in flap or donor site outcomes. There were two flap failures, both RFFF. CONCLUSION Each flap plays an important role in the reconstruction of oral defects, with larger defects preferentially reconstructed with ALT flaps. SCIP appears to be a reliable alternative in small defects with excellent perioperative and postoperative outcomes.
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Affiliation(s)
- Michael John Papanikolas
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia
| | - Michael James Leslie Hurrell
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia
| | - Jonathan R Clark
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, New South Wales, Australia.,Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Sydney, New South Wales, Australia
| | - Tsu-Hui Hubert Low
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Sydney Ch'ng
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, New South Wales, Australia.,Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Sydney, New South Wales, Australia
| | - Michael S Elliott
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, New South Wales, Australia.,Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Sydney, New South Wales, Australia
| | - Carsten E Palme
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - James Wykes
- Sydney Head and Neck Cancer Institute, Department of Head and Neck Surgery, Chris O'Brien Lifehouse, Sydney, New South Wales, Australia.,Sydney Medical School, Faculty of Medicine and Health Sciences, The University of Sydney, Sydney, New South Wales, Australia
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Suzuki K, Nishio N, Kimura H, Tokura T, Kishi S, Ozaki N, Fujimoto Y, Sone M. Comparison of quality of life and psychological distress in patients with tongue cancer undergoing a total/subtotal glossectomy or extended hemiglossectomy and free flap transfer: a prospective evaluation. Int J Oral Maxillofac Surg 2022; 52:621-629. [PMID: 36470693 DOI: 10.1016/j.ijom.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022]
Abstract
The aim of this study was to assess changes in the quality of life and psychological distress of patients with tongue cancer undergoing total/subtotal glossectomy (TG) or extended hemiglossectomy (HG) and free flap transfer. Differences between the two groups were compared using the Short Form 8-Item Health Survey (SF-8) and Hospital Anxiety and Depression Scale (HADS). Of the 43 patients with tongue cancer, 24 (56%) underwent TG and 19 (44%) underwent HG. The general health and social functioning scores in the SF-8 and depression in the HADS were significantly worse in the TG group than in the HG group at 12 months after surgery, indicating that patients in the TG group may experience social isolation and psychological distress, and have difficulty in employability even 12 months after surgery. In contrast, all items of the SF-8 in the HG group were nearly equal to those in the general population. Due to the extensive psychological impact on patients with tongue cancer who are planned for an extended resection, curative surgery with free flap transfer and multidisciplinary psychiatric support are essential to improve quality of life and manage psychological distress.
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Choi JW, Alshomer F, Kim YC. Evolution and current status of microsurgical tongue reconstruction, part II. Arch Craniofac Surg 2022; 23:193-204. [PMID: 36373253 PMCID: PMC9663260 DOI: 10.7181/acfs.2022.00857] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/11/2022] [Indexed: 01/25/2023] Open
Abstract
Tongue reconstruction remains a major aspect of head and neck reconstructive procedures. Surgeons planning tongue reconstruction should consider several factors to optimize the overall outcomes. Specifically, various technical aspects related to tongue reconstruction have been found to affect the outcomes. Multidisciplinary teams dedicated to oncologic, reconstructive, and rehabilitative approaches play an essential role in the reconstructive process. Moreover, operative planning addressing certain patient-related and defect-related factors is crucial for optimizing functional speech and swallowing, as well as quality of life outcomes. Furthermore, tongue reconstruction is a delicate process, in which overall functional outcomes result from proper flap selection and shaping, recipient vessel preparation and anastomosis, surgical approaches to flap insetting, and postoperative management. The second part of this review summarizes these factors in relation to tongue reconstruction.
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Affiliation(s)
- Jong-Woo Choi
- Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Feras Alshomer
- Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young-Chul Kim
- Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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9
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Choi JW, Alshomer F, Kim YC. Current status and evolution of microsurgical tongue reconstructions, part I. Arch Craniofac Surg 2022; 23:139-151. [PMID: 36068689 PMCID: PMC9449093 DOI: 10.7181/acfs.2022.00654] [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: 05/10/2022] [Accepted: 06/13/2022] [Indexed: 11/20/2022] Open
Abstract
Reconstructive surgery in the management of head and neck cancer has evolved to include structure-specific approaches in which organ-specific treatment algorithms help optimize outcomes. Tongue cancer management and reconstruction are surgical challenges for which well-executed reconstructive plans should be completed promptly to avoid delaying any subsequently planned oncologic treatment. Crucial considerations in tongue cancer resection are the significant functional morbidity associated with surgical defects, particularly in terms of speech and swallowing, and the consequent negative impact on patients’ quality of life. With the evolution of microsurgical techniques and the development of the perforator flap concept, flap options can be tailored to the characteristics of various tongue defects. This has allowed the implementation of pliable flaps that can help restore tongue mobility and yield subsequent functional outcomes. Using an evolutional framework, we present this series of reviews related to tongue reconstruction. The first part of the review summarizes flap options and flap-related factors, such as volume and tissue characteristics. Related functional aspects are also presented, including tongue mobility, speech, and swallowing, as well as ways to evaluate and optimize these outcomes.
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Affiliation(s)
- Jong-Woo Choi
- Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Feras Alshomer
- Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young-Chul Kim
- Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Jimenez JE, Nilsen ML, Gooding WE, Anderson JL, Khan NI, Mady LJ, Wasserman-Wincko T, Duvvuri U, Kim S, Ferris RL, Solari MG, Kubik MW, Johnson JT, Sridharan S. Surgical factors associated with patient-reported quality of life outcomes after free flap reconstruction of the oral cavity. Oral Oncol 2021; 123:105574. [PMID: 34715452 DOI: 10.1016/j.oraloncology.2021.105574] [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: 07/19/2021] [Revised: 09/17/2021] [Accepted: 10/12/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To determine which surgical factors are associated with quality-of-life (QOL) outcomes in oral cavity cancer survivors after free flap reconstruction of the oral cavity. PATIENTS AND METHODS A cross-sectional study was conducted from a multidisciplinary head and neck cancer (HNC) survivorship clinic. Oral cavity cancer survivors with at least 6-months of postoperative follow-up from ablation and free flap reconstruction were included. Primary outcome measures were validated patient-reported outcome measures (PROMs) including the Eating Assessment Tool-10 (EAT-10) measure of swallowing-specific QOL, University of Washington Quality of Life (UW-QOL) physical and social-emotional subscale scores and feeding tube dependence. RESULTS Extent of tongue resection was associated with EAT-10 and the UW-QOL Physical subscale scores. Patients with oral tongue defects reported worse scores than with composite defects in the EAT-10 and UW-QOL physical domain (p = 0.0004, 0.0025, respectively). This association no longer applies when controlling for differences in extent of tongue resection. Patients with anterior composite resections reported worse EAT-10 scores than lateral resections (p = 0.024). This association no longer applies when controlling for extent of tongue resection (p = 0.46). Gastric tube dependence demonstrates similar trends to PROMs. CONCLUSION Extent of tongue resection was strongly associated with poor QOL outcomes after free tissue reconstruction of the oral cavity and mediates the associations between other defect characteristics and QOL. These findings demonstrate the need for emphasis on expected oral tongue defects when counseling patients and highlight the need to address QOL in a multidisciplinary fashion post-operatively.
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Affiliation(s)
- Joaquin E Jimenez
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States
| | - Marci Lee Nilsen
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States; University of Pittsburgh, School of Nursing, Department of Acute and Tertiary Care, United States
| | | | - Jennifer L Anderson
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States
| | - Nayel I Khan
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States
| | - Leila J Mady
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Pennsylvania, United States; Leonard Davis Institute of Health Economics, University of Pennsylvania, United States
| | - Tamara Wasserman-Wincko
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States
| | - Umamaheswar Duvvuri
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States
| | - Seungwon Kim
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States
| | - Robert L Ferris
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States; UPMC Hillman Cancer Center, United States
| | - Mario G Solari
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States; Department of Plastic Surgery, University of Pittsburgh Medical Center, United States
| | - Mark W Kubik
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States; Department of Plastic Surgery, University of Pittsburgh Medical Center, United States
| | - Jonas T Johnson
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States
| | - Shaum Sridharan
- Department of Otolaryngology - Head & Neck Surgery, University of Pittsburgh Medical Center, United States; Department of Plastic Surgery, University of Pittsburgh Medical Center, United States.
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11
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MacDonald A, Gross A, Jones B, Dhar M. Muscle Regeneration of the Tongue: A review of current clinical and regenerative research strategies. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:1022-1034. [PMID: 34693743 DOI: 10.1089/ten.teb.2021.0133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Various abnormalities of the tongue, including cancers, commonly require surgical removal to sequester growth and metastasis. However, even minor resections can affect functional outcomes such as speech and swallowing, thereby reducing quality of life. Surgical resections alone create volumetric muscle loss whereby muscle tissue cannot self-regenerate within the tongue. In these cases, the tongue is reconstructed typically in the form of autologous skin flaps. However, flap reconstruction has many limitations and unfortunately is the primary option for oral and reconstructive surgeons to treat tongue defects. The alternative, but yet undeveloped strategy for tongue reconstruction is regenerative medicine, which widely focuses on building new organs with stem cells. Regenerative medicine has successfully treated many tissues, but research has inadequately addressed the tongue as a vital organ in need of tissue engineering. In this review, we address the current standard for tongue reconstruction, the cellular mechanisms of muscle cell development, and the stem cell studies that have attempted muscle engineering within the tongue. Until now, no review has focused on engineering the tongue with regenerative medicine, which could guide innovative strategies for tongue reconstruction.
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Affiliation(s)
- Amber MacDonald
- The University of Tennessee Knoxville College of Veterinary Medicine, 70737, Large Animal Clinical Sciences, 2407 River Drive, Knoxville, Tennessee, United States, 37996-4539;
| | - Andrew Gross
- The University of Tennessee Medical Center, 21823, Knoxville, Tennessee, United States;
| | - Brady Jones
- The University of Tennessee Medical Center, 21823, Knoxville, Tennessee, United States;
| | - Madhu Dhar
- University of Tennessee Knoxville College of Veterinary Medicine, 70737, Large Animal Clinical Sciences, College of Veterinary Medicine, 2407 River Drive, Knoxville, Tennessee, United States, 37996.,University of Tennessee;
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12
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Nagatsuka H, Kawakami S, Kuwahara M, Kubota C, Kodama N, Minagi S. Newly designed flat surface artificial tongue system for speech improvement in glossectomy patients: A preliminary study. J Prosthodont Res 2021; 66:87-92. [PMID: 34261846 DOI: 10.2186/jpr.jpr_d_20_00230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To design an efficient tongue prosthesis with reproducibility and to objectively evaluate improvement in speech function. METHODS A silicon anatomical artificial tongue (AT) and a flat surface artificial tongue system (FTS) were used in our study. Twenty healthy participants (10 males and 10 females, 26.3 ± 1.8 years) were fitted with a tongue movement suppression appliance (TSA) that fit the dental arch to simulate the glossectomy condition. TSA, TSA + FTS, and TSA + AT simulated the state of glossectomy patients without artificial tongue, with normal artificial tongue, and newly designed artificial tongue, respectively. Three speech intelligibility tests were performed for each of the following conditions: pronouncing 100 Japanese monosyllables, 40 Japanese words, and reading a short story. One-way ANOVA, Wilcoxon signed-rank test, and Tukey-Kramer post-hoc test were used for statistical analyses. RESULTS Significant differences were observed for 100 Japanese monosylla bles and 40 Japanese words between the TSA + FTS, TSA, and TSA + AT conditions (p ‹ 0.05). Regarding the speech intelligibility test for reading a short story, the TSA + FTS condition resulted in a significantly higher speech intelligibility than the TSA and TSA + AT conditions (p ‹ 0.05). CONCLUSIONS A flat surface artificial tongue system contributed to the improvement in speech function. This structure can be easily used in cases where conventional artificial tongue are applicable, regardless of variation in the oral condition; thus, making it a widely applicable treatment option for glossectomy patients.
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Affiliation(s)
- Hiroaki Nagatsuka
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama
| | - Shigehisa Kawakami
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama
| | - Miho Kuwahara
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama
| | - Chie Kubota
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama
| | - Naoki Kodama
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama
| | - Shogo Minagi
- Department of Occlusal and Oral Functional Rehabilitation, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama
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13
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Lee TL, Wei PY, Yang MH, Chang PMH, Wang LW, Tai SK. Tongue conservation treatment for oral tongue squamous cell carcinoma with induction chemotherapy, surgery, and risk-adapted adjuvant therapy: A phase II trial. Cancer Rep (Hoboken) 2021; 5:e1456. [PMID: 34051137 PMCID: PMC8842695 DOI: 10.1002/cnr2.1456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/29/2021] [Accepted: 04/28/2021] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND To assess the feasibility of tongue conservation treatment with induction chemotherapy (ICT), tongue conservation surgery, and risk-adapted postoperative adjuvant therapy in oral tongue squamous cell carcinoma (OTSCC). METHODS Patients with newly diagnosed OTSCC cT2-4 N0-2 M0 were recruited. The ICT with a regimen of docetaxel, cisplatin, and oral tegafur/uracil (DCU) was administrated every 21 days. After the first cycle of ICT (DCU1), patients with a more than 30% decrease in the longest diameter of primary tumor underwent a second cycle of ICT (DCU2). Tongue conservation surgery was performed after ICT, and risk-adapted adjuvant therapy was organized based on pathological features. RESULTS From July 2011 to December 2015, a total of 23 patients were enrolled, 87% of whom were classified as stage III-IV. Clinical responders to DCU1 and DCU2 were determined in 90.5% (19/21) and 88.2% (15/17) of patients. Tongue conservation surgery was performed in 16 responders to ICT. Only one patient had a positive margin (6.3%), and a complete pathologic response was achieved in eight patients (50%). Only one patient developed local recurrence after a median follow-up of 58.6 months (range, 7.9-105.2). The 5-year overall survival (0% vs. 87.5%, P = 0.001) and disease-specific survival (0% vs. 93.3%, P = 0.000) were significantly different between the DCU1 nonresponders and responders. CONCLUSION Tongue conservation treatment with ICT, followed by conservation surgery and risk-adapted adjuvant therapy, is feasible for patients with OTSCC who are good responders to ICT. However, the outcomes of nonresponders are dismal. Further study in a larger patient population is warranted.
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Affiliation(s)
- Tsung-Lun Lee
- Department of Otolaryngology, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Otolaryngology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Pei-Yin Wei
- Department of Otolaryngology, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Otolaryngology, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Muh-Hwa Yang
- Infection and Immunity Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Oncology, Division of Medical Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Peter Mu-Hsin Chang
- Oncology, Division of Medical Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ling-Wei Wang
- Oncology, Division of Radiation Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shyh-Kuan Tai
- Department of Otolaryngology, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Otolaryngology, Taipei Veterans General Hospital, Taipei, Taiwan.,Infection and Immunity Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
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14
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Preliminary Functional Outcomes and Quality of Life after Tongue Reconstruction with the Vastus Lateralis Myofascial Free Flap. Facial Plast Surg 2021; 37:681-687. [PMID: 33902114 DOI: 10.1055/s-0041-1726445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
The aim of the present study is to report our preliminary experience with the vastus lateralis myofascial free flap (VLMFF) for tongue reconstruction according to tongue and donor site functional outcomes. Twelve consecutive patients (F: 5; median age: 54.0 years, interquartile range or IQR 42.75-69.0) were included. The validated European Organization for Research and Treatment of Cancer of the Head and Neck 35 Quality of Life Questionnaire (EORTC QLQ-H&N35) and the performance status scale for head and neck cancer (PSS-HN) questionnaires were used to assess the health-related quality of life (HRQOL). The lower extremity functional scale (LEFS) was used to self-report the donor area function. All patients were successfully treated, and no VLMFF failure was detected during a median follow-up period of 10.5 months (IQR: 6.5-33.0). The HRQOL showed a median EORTC QLQ-H&N35 score of 56.0 (IQR: 50.0-72.5). The median PSS-HN score was 80.0 (IQR: 45.0-95.0), 75.0 (IQR: 62.5-100.0), 75.0 (IQR: 62.5-100.0) for "Normalcy of Diet," "Public Eating," and "Understandability of Speech," respectively. The self-reported function of the lower extremities (donor area) showed a median LEFS of 59.0 (IQR: 32.5-74.0). This study reports optimistic data regarding the functional and quality of life outcomes after tongue reconstruction using VLMFF. Prospective controlled studies are needed to demonstrate advantages and disadvantages when compared with other reconstructive techniques.
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15
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Reconstruction of Hemiglossectomy Defects With the Lateral Arm Fasciocutaneous Flap. J Craniofac Surg 2021; 32:e689-e693. [PMID: 33674504 DOI: 10.1097/scs.0000000000007608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Partial tongue reconstruction requires a thin pliable flap to restore volume and mobility. The lateral arm flap is well suited to this as it is a thin fasciocutaneous flap that has consistent vascular anatomy, reliable perfusion, short harvest time and low donor site morbidity. The authors report our experience with use of this flap for reconstruction of hemi-glossectomy defects. METHODS This is a retrospective cohort of patients who underwent reconstruction of hemi-glossectomy and floor of mouth defects with a lateral arm flap, at Aga Khan University Hospital, Karachi (Pakistan) from November 2016 to January 2020. Flaps were harvested from the nondominant upper extremity. Data were collected for patient demographics, size of defect, size of flap, recipient vessels, postoperative complications and functional outcome. RESULTS Over a 3-year period, 8 hemi-tongue and extended hemi-tongue, and floor of mouth reconstructions were performed with a lateral arm fasciocutaneous flap. A standard lateral arm flap was harvested in 3 patients and an extended lateral arm flap in 5 patients. Mean flap size was 65.75 cm2 (48-76 cm2). The recipient artery in all cases was the superior thyroid artery. The recipient veins were the common facial vein in 1 patient, the internal jugular in 3 patients, the external jugular in 1 patient and both external and internal jugular in 3 patients. Donor sites were closed primarily. There were no total or partial flap losses. All patients were able to resume an oral diet (unrestricted in 1, soft in 4, pureed in 2 patients). Postoperative speech was intelligible to patients' family in 4 patients and to strangers in 3 patients. One patient succumbed to progressive disease in the early postoperative period. Orocutaneous fistulas developed in 3 patients, all of which healed with nonoperative management. CONCLUSIONS The lateral arm fasciocutaneous flap is well suited for reconstruction of hemiglossectomy and floor of mouth defect. It has the advantages of straightforward harvest, thin and pliable soft tissue, and low donor site morbidity.
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16
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Bera RN, Tiwari P. Do medial sural artery perforator flaps have better clinical outcomes compared to the rectus abdominis perforator (DIEAP) flap in reconstruction of glossectomy defects? A Prisma guided meta-analysis. Ann Maxillofac Surg 2021; 11:121-128. [PMID: 34522666 PMCID: PMC8407617 DOI: 10.4103/ams.ams_339_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 02/16/2021] [Accepted: 02/24/2021] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND There is an increasing evidence for the use of thin flaps based on vascular perforators for reconstructive surgeries. The medial sural and deep inferior epigastric artery flaps offer versatility for the reconstruction of major defects of the head and neck. OBJECTIVES "Whether medial sural artery perforator (MSAP) flap or rectus abdominis perforator flap is better for the reconstruction of glossectomy defects in terms of functional outcome?" DATA SOURCES PubMed, Cochrane Library, clinicaltrials.gov and hand searches. PARTICIPANTS AND INTERVENTIONS Patients who underwent tongue reconstruction with either MSAP flap or deep inferior epigastric artery perforator (DIEAP) flap. STUDY APPRAISAL AND SYNTHESIS METHODS Based on defined study criteria 6 studies were selected according to Prisma Guidelines. The overall estimated effect was categorized as significant where P < 0.05. RESULTS There was no significant difference between both flaps in terms of receptor site complications (P = 0.223). Overall odds ratio (OR) for complications was 1.35 (95% confidence interval [CI]: 0.412-0.736) and the test for overall effect t value was 2.836, P < 0.05. Overall OR was 6.01 (95% CI 0.5-7.45) and the test for overall effect t value was 1.41, P < 0.05 indicating there was a statistical difference in the intelligibility of speech. LIMITATIONS Anatomical variations, under-reporting of studies and lack of universal tool for speech intelligibility. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS Both the flaps are comparable in terms of functional outcome. Medium-sized defects can be reconstructed with MSAP and composite larger defects would benefit from DIEAP. In females, anterolateral thigh flap still remains the choice for composite reconstructions.
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Affiliation(s)
- Rathindra Nath Bera
- Unit of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, Institute of Medical Sciences Trauma Centre BHU, Varanasi, Uttar Pradesh, India
| | - Preeti Tiwari
- Unit of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, Institute of Medical Sciences Trauma Centre BHU, Varanasi, Uttar Pradesh, India
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17
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Rickert D, Steinhart H, Lendlein A. Functional requirements for polymeric implant materials in head and neck surgery. Clin Hemorheol Microcirc 2020; 76:179-189. [PMID: 32925016 DOI: 10.3233/ch-209212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The pharyngeal reconstruction is a challenging aspect after pharyngeal tumor resection. The pharyngeal passage has to be restored to enable oral alimentation and speech rehabilitation. Several techniques like local transposition of skin, mucosa and/or muscle, regional flaps and free vascularized flaps have been developed to reconstruct pharyngeal defects following surgery, in order to restore function and aesthetics. The reconstruction of the pharynx by degradable, multifunctional polymeric materials would be a novel therapeutical option in head and neck surgery. MATERIALS AND METHODS Samples of an ethylene-oxide sterilized polymer (diameter 10 mm, 200μm thick) were implanted for the reconstruction of a standardized defect of the gastric wall in rats in a prospective study. The stomach is a model for a "worst case" application site to test the stability of the implant material under extreme chemical, enzymatical, bacterial, and mechanical load. RESULTS Fundamental parameters investigated in this animal model were a local tight closure between the polymer and surrounding tissues, histological findings of tissue regeneration and systemic responses to inflammation. A tight anastomosis between the polymer and the adjacent stomach wall was found in all animals after polymer implantation (n = 42). Histologically, a regeneration with glandular epithelium was found in the polymer group. No differences in the systemic responses to inflammation were found between the polymer group (n = 42) and the control group (n = 21) with primary wound closure of the defect of the gastric wall. CONCLUSIONS A sufficient stability of the polymeric material is a requirement for the pharyngeal reconstruction with implant materials.
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Affiliation(s)
- Dorothee Rickert
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,ENT-clinic, Department of Head and Neck Surgery, Marienhospital Stuttgart, Stuttgart, Germany
| | - Helmut Steinhart
- ENT-clinic, Department of Head and Neck Surgery, Marienhospital Stuttgart, Stuttgart, Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Center for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Chemistry, University of Potsdam, Potsdam, Germany
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18
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Patient-specific soft tissue reconstruction: an IDEAL stage I report of hemiglossectomy reconstruction and introduction of the PANSOFOS flap. Br J Oral Maxillofac Surg 2020; 58:681-686. [DOI: 10.1016/j.bjoms.2020.04.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/13/2020] [Indexed: 01/05/2023]
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19
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Ochoa E, Larson AR, Han M, Webb KL, Stanford-Moore GB, El-Sayed IH, George JR, Ha PK, Heaton CM, Ryan WR. Patient-Reported Quality of Life After Resection With Primary Closure for Oral Tongue Carcinoma. Laryngoscope 2020; 131:312-318. [PMID: 32379355 DOI: 10.1002/lary.28723] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/02/2020] [Accepted: 04/14/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVES/HYPOTHESIS For early-stage oral tongue carcinoma and carcinoma in situ (ESOTCCIS), we evaluated patient-reported quality-of-life (QOL) outcomes following resection with primary closure (R-PC). STUDY DESIGN Retrospective review at an academic cancer center. METHODS Thirty-nine ESOTCCIS patients (Tis, T1, T2) who underwent R-PC without radiation completed the University of Washington Quality of Life Questionnaire Version 4 (UW-QOL) at least 6 months since R-PC (mean = 2.39 years; range = 0.5-6.7 years). We compared UW-QOL scores for pain, swallowing, chewing, speech, and taste to established normative population scores. Multivariable regression analysis evaluated factors associated with QOL impairment. RESULTS ESOTCCIS patients who underwent R-PC in comparison to the normative population reported significantly worse mean speech (87.7 vs. 98, P < .001) and taste (85.6 vs. 95, P = .002) scores and no significant differences in mean pain (91.7 vs. 86, P = .96), swallowing (100 vs. 98, P = .98), chewing (97.4 vs. 94, P = .98) scores. For speech and taste, 59% (23/39) reported no postoperative change from baseline, whereas 41% (16/39) and 35.9% (14/39) reported mild impairment, respectively. Overall, postoperative QOL was reported as good, very good, or outstanding by 87.2% (34/39). Higher American Society of Anesthesiologists class, cT1 compared to CIS, and ventral tongue involvement were independently associated with worse speech. Age < 60 years was independently associated with worse taste. CONCLUSIONS ESOTCCIS patients who undergo R-PC without radiation can expect long-term swallowing, chewing, and pain to be in the normative range. Although a majority of patients can expect to achieve normative speech and taste outcomes, R-PC carries the risks of mild speech and/or taste impairments. LEVEL OF EVIDENCE 4 Laryngoscope, 131:312-318, 2021.
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Affiliation(s)
- Edgar Ochoa
- School of Medicine, University of California, San Francisco, California, U.S.A
| | - Andrew R Larson
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Mary Han
- School of Medicine, University of California, San Francisco, California, U.S.A
| | | | - Gaelen B Stanford-Moore
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Ivan H El-Sayed
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Jonathan R George
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Patrick K Ha
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - Chase M Heaton
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
| | - William R Ryan
- Division of Head and Neck Oncologic and Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, California, U.S.A
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20
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Larynx-preserving reconstruction after extended base of the tongue resection. J Plast Reconstr Aesthet Surg 2019; 73:740-748. [PMID: 31864890 DOI: 10.1016/j.bjps.2019.11.018] [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: 05/10/2019] [Revised: 10/03/2019] [Accepted: 11/22/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND As the base of the tongue (BOT) plays essential roles in speech and swallowing, surgical resection of BOT cancer is typically avoided. Moreover, standard reconstructive procedures for larynx-preserving BOT defects have not yet been established. We performed immediate flap reconstruction after wide resection of BOT cancer with laryngeal preservation. Herein, the functional and oncological results of our strategy were analysed. METHODS We retrospectively evaluated patients who underwent extended BOT resection (including the oral tongue, upper/lateral oropharyngeal wall, epiglottis and false vocal cord) with laryngeal preservation between April 2006 and April 2016. We classified defects involving the oral tongue or upper/lateral oropharyngeal wall as the lateral extension type and those involving the epiglottis or false vocal cord as the laryngeal extension type. Lateral extension-type defects were closed primarily and filled with a deepithelialised skin or muscle flap. Laryngeal extension-type defects were reconstructed using a bulky skin flap plus hyo-thyroid-pexy to create a neo-epiglottis. Postoperative functional and oncologic outcomes were assessed. RESULTS We enrolled 18 patients with extended BOT defects. Of them, 11 had a history of irradiation. The tracheal cannula was removed in all cases, although laryngeal extension defects were associated with a longer duration to removal. All patients achieved complete oral intake and retained intelligible speech, with preservation of laryngeal function. There was no local recurrence, and the 5-year overall survival was 88.9%. CONCLUSIONS Following wide BOT resection, reconstruction with laryngeal preservation is feasible even in cases involving irradiated tumours with laryngeal extension.
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Abstract
The tongue is paramount to natural speech and swallowing, and good tongue function is important in the overall quality of life. Autologous free-flap reconstruction of the tongue after glossectomy allows for adequate speech, swallow, and quality-of-life outcomes in a majority of patients. Herein, the authors review autologous free-flap reconstruction of the tongue with a focus on different flap options, speech and swallow outcomes, quality-of-life outcomes, and factors that affect how patients perform after tongue reconstruction.
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Affiliation(s)
- Aurora Vincent
- Otolaryngology - Head and Neck Surgery, Madigan Army Medical Center, Tacoma, Washington
| | - Scott Kohlert
- Otolaryngology and Facial Plastic Surgery Associates, Fort Worth, Texas
| | - Thomas S Lee
- Department of Otolaryngology - Head and Neck Surgery, Virginia Commonwealth University Hospital, Richmond, Virginia
| | - Jared Inman
- Department of Otolaryngology - Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, California
| | - Yadranko Ducic
- Otolaryngology and Facial Plastic Surgery Associates, Fort Worth, Texas
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Joo YH, Cho JK, Koo BS, Kwon M, Kwon SK, Kwon SY, Kim MS, Kim JK, Kim H, Nam I, Roh JL, Park YM, Park IS, Park JJ, Shin SC, Ahn SH, Won S, Ryu CH, Yoon TM, Lee G, Lee DY, Lee MC, Lee JK, Lee JC, Lim JY, Chang JW, Jang JY, Chung MK, Jung YS, Cho JG, Choi YS, Choi JS, Lee GH, Chung PS. Guidelines for the Surgical Management of Oral Cancer: Korean Society of Thyroid-Head and Neck Surgery. Clin Exp Otorhinolaryngol 2019; 12:107-144. [PMID: 30703871 PMCID: PMC6453784 DOI: 10.21053/ceo.2018.01816] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 12/14/2018] [Indexed: 01/08/2023] Open
Abstract
Korean Society of Thyroid-Head and Neck Surgery appointed a Task Force to provide guidance on the implementation of a surgical treatment of oral cancer. MEDLINE databases were searched for articles on subjects related to “surgical management of oral cancer” published in English. Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. The quality of evidence was rated with use RoBANS (Risk of Bias Assessment Tool for Nonrandomized Studies) and AMSTAR (A Measurement Tool to Assess the Methodological Quality of Systematic Reviews). Evidence-based recommendations for practice were ranked according to the American College of Physicians grading system. Additional directives are provided as expert opinions and Delphi questionnaire when insufficient evidence existed. The Committee developed 68 evidence-based recommendations in 34 categories intended to assist clinicians and patients and counselors, and health policy-makers. Proper surgical treatment selection for oral cancer, which is directed by patient- and subsite-specific factors, remains the greatest predictor of successful treatment outcomes. These guidelines are intended for use in conjunction with the individual patient’s treatment goals.
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Affiliation(s)
- Young-Hoon Joo
- Department of Otorhinolaryngology Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae-Keun Cho
- Department of Otorhinolaryngology Head and Neck Surgery, Inje University College of Medicine, Busan, Korea
| | - Bon Seok Koo
- Department of Otorhinolaryngology Head and Neck Surgery, Chungnam National University School of Medicine, Daejeon, Korea
| | - Minsu Kwon
- Department of Otorhinolaryngology Head and Neck Surgery, Eulji University School of Medicine, Daejeon, Korea
| | - Seong Keun Kwon
- Department of Otorhinolaryngology Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Soon Young Kwon
- Department of Otorhinolaryngology Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Min-Su Kim
- Department of Otorhinolaryngology Head and Neck Surgery, CHA University School of Medicine, Seongnam, Korea
| | - Jeong Kyu Kim
- Department of Otorhinolaryngology Head and Neck Surgery, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Heejin Kim
- Department of Otorhinolaryngology Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea
| | - Innchul Nam
- Department of Otorhinolaryngology Head and Neck Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong-Lyel Roh
- Department of Otorhinolaryngology Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young Min Park
- Department of Otorhinolaryngology Head and Neck Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Il-Seok Park
- Department of Otorhinolaryngology Head and Neck Surgery, Hallym University College of Medicine, Seoul, Korea
| | - Jung Je Park
- Department of Otorhinolaryngology Head and Neck Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Sung-Chan Shin
- Department of Otorhinolaryngology Head and Neck Surgery, Pusan National University School of Medicine, Busan, Korea
| | - Soon-Hyun Ahn
- Department of Otorhinolaryngology Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Seongjun Won
- Department of Otorhinolaryngology Head and Neck Surgery, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Chang Hwan Ryu
- Department of Otorhinolaryngology Head and Neck Surgery, National Cancer Center, Goyang, Korea
| | - Tae Mi Yoon
- Department of Otorhinolaryngology Head and Neck Surgery, Chonnam National University Medical School, Hwasun, Korea
| | - Giljoon Lee
- Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Doh Young Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Myung-Chul Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Joon Kyoo Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Chonnam National University Medical School, Hwasun, Korea
| | - Jin Choon Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Pusan National University School of Medicine, Busan, Korea
| | - Jae-Yol Lim
- Department of Otorhinolaryngology Head and Neck Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Won Chang
- Department of Otorhinolaryngology Head and Neck Surgery, Chungnam National University School of Medicine, Daejeon, Korea
| | - Jeon Yeob Jang
- Department of Otorhinolaryngology Head and Neck Surgery, Ajou University School of Medicine, Suwon, Korea
| | - Man Ki Chung
- Department of Otorhinolaryngology Head and Neck Surgery, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yuh-Seok Jung
- Department of Otorhinolaryngology Head and Neck Surgery, National Cancer Center, Goyang, Korea
| | - Jae-Gu Cho
- Department of Otorhinolaryngology Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Yoon Seok Choi
- Department of Otorhinolaryngology Head and Neck Surgery, Yeungnam University College of Medicine, Daegu, Korea
| | - Jeong-Seok Choi
- Department of Otorhinolaryngology Head and Neck Surgery, Inha University School of Medicine, Incheon, Korea
| | - Guk Haeng Lee
- Department of Otorhinolaryngology Head and Neck Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | - Phil-Sang Chung
- Department of Otorhinolaryngology Head and Neck Surgery, Dankook University College of Medicine, Cheonan, Korea
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23
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Janik S, Pyka J, Stanisz I, Wachholbinger T, Leonhard M, Roesner I, Denk-Linnert DM, Miles BA, Schneider-Stickler B, Erovic BM. Use of the myocutaneous serratus anterior free flap for reconstruction after salvage glossectomy. Eur Arch Otorhinolaryngol 2018; 276:559-566. [PMID: 30552516 PMCID: PMC6394427 DOI: 10.1007/s00405-018-5245-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 12/08/2018] [Indexed: 11/29/2022]
Abstract
Purpose To describe the use of a myocutaneous serratus anterior free flap (SAFF) for tongue reconstruction after salvage subtotal (STG) and total glossectomy (TG). Methods In this prospective case series, seven patients underwent salvage STG or TG and reconstruction with a myocutaneous SAFF between 10/2015 and 02/2017. Functional and oncologic outcomes were prospectively evaluated. Donor side morbidity was determined using the Disabilities of the Arm, Shoulder and Hand (DASH) score. Results SAFF with mean skin paddles of 6.7 cm × 8.7 cm was used in five STG and two TG patients, respectively. There was a 100% flap survival and a mean DASH score of 10.8 reflected normal arm and shoulder function after surgery. One year after salvage surgery, 1 (14.3%) and 4 (57.1%) patients were tracheostomy and gastrostomy tube dependent. Gastrostomy tube dependence was significantly worse in patients with tumors of the base of tongue compared to other tumor sites (p = 0.030) and in patients who underwent transcervical compared to transoral tumor resection (p = 0.008). Local recurrence rate was 57.1% with a disease-free survival of 17.6 months. Conclusion The myocutaneous SAFF represents a safe and reliable flap for tongue reconstruction after salvage glossectomy with satisfying functional outcomes and low donor side morbidity.
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Affiliation(s)
- Stefan Janik
- Department of Otolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Julian Pyka
- Department of Otolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Isabella Stanisz
- Department of Otolaryngology, Head and Neck Surgery, Medical University of Vienna, Vienna, Austria
| | - Tamara Wachholbinger
- Division of Phoniatrics-Logopedics, Department of Otolaryngology, Medical University of Vienna, Vienna, Austria
| | - Matthias Leonhard
- Division of Phoniatrics-Logopedics, Department of Otolaryngology, Medical University of Vienna, Vienna, Austria
| | - Imme Roesner
- Division of Phoniatrics-Logopedics, Department of Otolaryngology, Medical University of Vienna, Vienna, Austria
| | - Doris-Maria Denk-Linnert
- Division of Phoniatrics-Logopedics, Department of Otolaryngology, Medical University of Vienna, Vienna, Austria
| | - Brett A Miles
- Department of Otolaryngology Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Berit Schneider-Stickler
- Division of Phoniatrics-Logopedics, Department of Otolaryngology, Medical University of Vienna, Vienna, Austria
| | - Boban M Erovic
- Institute of Head and Neck Diseases, Evangelical Hospital Vienna, Vienna, Austria.
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24
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Comini LV, Spinelli G, Mannelli G. Algorithm for the treatment of oral and peri-oral defects through local flaps. J Craniomaxillofac Surg 2018; 46:2127-2137. [DOI: 10.1016/j.jcms.2018.09.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/23/2018] [Accepted: 09/19/2018] [Indexed: 02/07/2023] Open
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25
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Long-term quality of life measured by the University of Washington QoL questionnaire (version 4) in patients with oral cancer treated with or without reconstruction with a microvascular free flap. Br J Oral Maxillofac Surg 2018; 56:475-481. [DOI: 10.1016/j.bjoms.2017.12.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 12/29/2017] [Indexed: 12/17/2022]
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26
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The "Flap Suture Anchoring" Technique for Safe Oral Floor Reconstruction With Preservation of Alveolar Process. J Craniofac Surg 2018; 29:1300-1304. [PMID: 29570530 DOI: 10.1097/scs.0000000000004533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Flaps-based microsurgery is routinely applied to reconstruct oral floor defects caused by oncologic resection. To prevent orocutaneous fistulae, flaps are frequently sutured with buccal vestibule mucosa after sacrificing the alveolar process. The patients suffered denture loss and irreversible structural damage. For reliable oral floor reconstruction with preservation of alveolar process, the authors introduced the flap "suture anchoring" technique. Oral floor, hemiglossal-oral floor, and tongue base-parapharyngeal wall-oral floor defects were included in this study. The flap anchoring technique involves structural oral floor reconstruction with a chimeric anterolateral thigh-free flap or radial forearm flap with adipofascial tissue extension. The dead space in oral floor is filled with vastus lateralis muscle or adipofascial tissue, then holes are drilled on the alveolar bone among tooth root, beneath the attached gingiva. Skin paddle is sutured with 4-0 sutures through the alveolar holes thus anchored to the mandible. By applying this technique, there was no wound infection or orocutaneous fistulae in all patients postoperatively, even experienced postoperative radiotherapy. In addition, a soft and natural jaw-tongue furrow could be formed to allow the free movement of tongue. Taken together, the flap anchoring technique offers a safe and reliable approach to recover oral function and preservation of occlusion.
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27
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Daigo K, Takano A, Thang PM, Yoshitake Y, Shinohara M, Tohnai I, Murakami Y, Maegawa J, Daigo Y. Characterization of KIF11 as a novel prognostic biomarker and therapeutic target for oral cancer. Int J Oncol 2017; 52:155-165. [PMID: 29115586 PMCID: PMC5743338 DOI: 10.3892/ijo.2017.4181] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 10/21/2017] [Indexed: 11/16/2022] Open
Abstract
Oral cancer has a high mortality rate, and its incidence is increasing gradually worldwide. As the effectiveness of standard treatments is still limited, the development of new therapeutic strategies is eagerly awaited. Kinesin family member 11 (KIF11) is a motor protein required for establishing a bipolar spindle in cell division. The role of KIF11 in oral cancer is unclear. Therefore, the present study aimed to assess the role of KIF11 in oral cancer and evaluate its role as a prognostic biomarker and therapeutic target for treating oral cancer. Immunohistochemical analysis demonstrated that KIF11 was expressed in 64 of 99 (64.6%) oral cancer tissues but not in healthy oral epithelia. Strong KIF11 expression was significantly associated with poor prognosis among oral cancer patients (P=0.034), and multivariate analysis confirmed its independent prognostic value. In addition, inhibition of KIF11 expression by transfection of siRNAs into oral cancer cells or treatment of cells with a KIF11 inhibitor significantly suppressed cell proliferation, probably through G2/M arrest and subsequent induction of apoptosis. These results suggest that KIF11 could be a potential prognostic biomarker and therapeutic target for oral cancer.
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Affiliation(s)
- Kayo Daigo
- Center for Antibody and Vaccine Therapy, Research Hospital, Institute of Medical Science Hospital, The University of Tokyo, Tokyo, Japan
| | - Atsushi Takano
- Center for Antibody and Vaccine Therapy, Research Hospital, Institute of Medical Science Hospital, The University of Tokyo, Tokyo, Japan
| | - Phung Manh Thang
- Center for Antibody and Vaccine Therapy, Research Hospital, Institute of Medical Science Hospital, The University of Tokyo, Tokyo, Japan
| | - Yoshihiro Yoshitake
- Department of Oral and Maxillofacial Surgery, Kumamoto University, Kumamoto, Japan
| | - Masanori Shinohara
- Department of Oral and Maxillofacial Surgery, Kumamoto University, Kumamoto, Japan
| | - Iwau Tohnai
- Department of Oral and Maxillofacial Surgery, Yokohama City University, Yokohama, Japan
| | - Yoshinori Murakami
- Division of Molecular Pathology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Jiro Maegawa
- Department of Plastic and Reconstructive Surgery, Yokohama City University, Yokohama, Japan
| | - Yataro Daigo
- Center for Antibody and Vaccine Therapy, Research Hospital, Institute of Medical Science Hospital, The University of Tokyo, Tokyo, Japan
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