Comparative analysis of the functional results of tongue reconstruction with four kinds of free flaps after radical resection of tongue cancer

2020 ◽  
Author(s):  
yongcong cai ◽  
Chao Li ◽  
Dinfen Zeng ◽  
ChunYan Shui ◽  
RongHao Sun ◽  
...  
Keyword(s):  
Tongue Cancer ◽  
Free Flaps ◽  
Radical Resection ◽  
The Other ◽  
Swallowing Function ◽  
Donor Area ◽  
Tongue Reconstruction ◽  
Alt Flap ◽  
Normal Speech ◽  
Better Than

Abstract Background Surgery is still the treatment of choice for tongue cancer. Tongue reconstruction should be performed immediately after extensive resection of the tumor, which will affect the patient's function. The purpose of this study was to investigate the functional evaluation of four different free flaps in tongue reconstruction after a tongue cancer operation. Methods Forty-eight cases of tongue reconstruction with a radial forearm free(RFF flap), anterolateral thigh(ALT) flap, lateral upper arm free(LAF)flap and deep inferior epigastric artery perforator(DIEP)flap from 2014 to 2018 were analyzed. The speech function, swallowing function, tongue flexibility and patients' satisfaction with the donor area was investigated six months after repair. Results Twenty-one cases with RFF flaps, 18 cases with ALT flaps, 5 cases with LAF flaps and 4 cases with DIEP flaps showed complete flap survival. Speech function:39.6% of the patients exhibited normal speech, 43.8% of the patients exhibited near-normal speech, the RFF flap group was showed better recovery than did the other three groups ( p =0. 195). The degree of tongue flexibility: 37.5% of the patients with normal postoperative tongue flexibility, 43.6% of the patients with slightly limited tongue flexibility,, 16.7% of the patients with severely limited tongue flexibility, The flexibility of the RFF flap was better than that of the other three groups( p =0. 054). Swallowing function:47.9% of the patients had a regular diet, 33.3% of the patients had soft foods, 16.7% patients receive fluid diet, The RFF flap group showed better recovery than did the other three groups ( p =0. 248). Donor satisfaction: 56.2% of the patients were satisfied, 41.7% of the patients were basically satisfied, 100% of the patients with LAF and DIEP flaps were satisfied. This level of satisfaction was better than that in the RFF and ALT flap groups. ( p =0. 039). Conclusion The functional recovery of RFF flap in tongue reconstruction after middle and early stage tongue cancer surgery is better. However, ALT flap has been used more frequently for a large number of tissue defects caused by radical resection of tongue cancer in the advanced stage. Meanwhile, LAF and DIEP flaps can provide a sufficient tissue volume, a conceal scar, fewer complications in the donor area, and both function and beauty, which are easily accepted by patients.

Dysphagia following Various Degrees of Surgical Resection for Oral Cancer

1992 ◽  
Vol 101 (2) ◽  
pp. 138-141 ◽  
Author(s):  
Minoru Hirano ◽  
Hidetaka Matsuoka ◽  
Yasunao Kuroiwa ◽  
Kiminori Sato ◽  
Shinzo Tanaka ◽  
...  
Keyword(s):  
Oral Cancer ◽  
Surgical Resection ◽  
Tongue Cancer ◽  
Tube Feeding ◽  
The Other ◽  
Surgical Removal ◽  
Swallowing Function ◽  
Pharyngeal Wall ◽  
Swallowing Problems ◽  
Nasogastric Tube Feeding

Postoperative swallowing problems were investigated in 20 patients who had undergone various degrees of surgical resection for oral cancer. The swallowing problems were evaluated on the basis of type of food, degree of aspiration, and duration of postoperative nasogastric tube feeding. Two patients with tongue cancer who had had hemiglossectomy without reconstruction ate normal food without aspiration within a week after operation. Eight patients who had undergone two- to three-quarter glossectomy for tongue cancer ate gruel with no or occasional liquid aspiration. Among 4 patients who had had near-total or total glossectomy for tongue cancer, 3 ate thin gruel or liquid with occasional aspiration. The other could not eat orally because of consistent severe aspiration. One patient with mouth floor cancer underwent resection of the mouth floor in combination with hemiglossectomy and she ate gruel without aspiration. Among 5 patients with mouth floor cancer who had had surgical removal accompanied by near-total or total glossectomy, 3 ate gruel with no or occasional liquid aspiration, 1 ate thin gruel with no aspiration, and the other could not eat orally. A diagnosis of T4 lesions, extensive removal of the tongue base, removal of the geniohyoid and mylohyoid muscles, and removal of the lateral pharyngeal wall were significantly related to poor swallowing function.

scholarly journals Comparative Analysis of Radial Forearm Free Flap and Anterolateral Thigh Flap in Tongue Reconstruction after Radical Resection of Tongue Cancer

ORL ◽  
2019 ◽  
Vol 81 (5-6) ◽  
pp. 252-264 ◽  
Author(s):  
Yong-Cong Cai ◽  
Chao Li ◽  
Din-fen Zeng ◽  
Yu Qiu Zhou ◽  
Rong Hao Sun ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Free Flap ◽  
Tongue Cancer ◽  
Radical Resection ◽  
Anterolateral Thigh Flap ◽  
Radial Forearm Free Flap ◽  
Anterolateral Thigh ◽  
Radial Forearm ◽  
Tongue Reconstruction

The comparison of the functional outcomes between primary closure and reconstruction with free flap after resection of T1 stage tongue cancer: A prospective study

2020 ◽  
Author(s):  
Ajit Kumar Pathak ◽  
Xiaoshan Wu ◽  
Rong Yang ◽  
Huang Long ◽  
Yafei Xiong ◽  
...  
Keyword(s):  
Prospective Study ◽  
Free Flap ◽  
Functional Outcomes ◽  
Primary Closure ◽  
Tongue Cancer ◽  
T1 Stage ◽  
Time Periods ◽  
Tongue Mobility ◽  
Alt Flap ◽  
Better Than

Abstract Background: Reconstruction with free flap after the resection of tongue cancer is commonly used by craniofacial surgeons. However, it is unknown whether the reconstruction with free flap is better than the primary closure for the T1 stage tongue cancer. The objective of this prospective study is to compare the functional outcomes between these two methods.Methods: In this prospective study, 30 patients who were diagnosed as T1 stage tongue cancer (on anterior -two third of the tongue) were randomly divided into two groups. The first group underwent the primary closure after the resection (15 patients) and the second group were reconstructed with the anterolateral perforator flap (15 patients). All patients underwent postoperative functional evaluation using specific questionnaires and a screening test with special emphasis on speech, swallowing, and tongue mobility at 1, 3, 6 and 12 months.Results: Functional outcomes, including tongue mobility, speech, and swallowing, were all better in primary closure than anterolateral thigh flap group. At 1-month post-op, the speech understandability of the patients who received a primary closure were statistically better than those who received ALT flap (p = 0.01), while at 1-year post-op, there was no significantly different on speech understandability between two groups (p = 0.16). Statistically significant differences were found between the two groups in the swallowing capacity at all four different time periods (p < 0.05). For the primary closure group, tongue mobility was statistically better at all four different time periods than in ALT flap group (p < 0.05).Conclusion: For the tongue cancer patients (T1), reconstruction with primary closure, rather than with flap, can reserve more functions including tongue mobility, speech and swallowing outcomes, and therefore might be the appropriate reconstruction method after partial glossectomy.

Closing the GAP—A 5Å Scanning Microscope

1969 ◽  
Vol 27 ◽  
pp. 6-7
Author(s):  
A. V. Crewe
Keyword(s):  
Normal Form ◽  
The Other ◽  
Resolving Power ◽  
Scanning Microscope ◽  
Conventional Microscope ◽  
Other Hand ◽  
Closing The Gap ◽  
Thermal Sources ◽  
Better Than ◽  
Transmission Microscope

We have become accustomed to differentiating between the scanning microscope and the conventional transmission microscope according to the resolving power which the two instruments offer. The conventional microscope is capable of a point resolution of a few angstroms and line resolutions of periodic objects of about 1Å. On the other hand, the scanning microscope, in its normal form, is not ordinarily capable of a point resolution better than 100Å. Upon examining reasons for the 100Å limitation, it becomes clear that this is based more on tradition than reason, and in particular, it is a condition imposed upon the microscope by adherence to thermal sources of electrons.

MUNDANE MIRACLES IN AWADH. ENCOUNTERS WITH THE REVEALED AND THE HIDDEN

2020 ◽  
pp. 130-140
Author(s):  
Maxim B. Demchenko ◽  
Keyword(s):  
The Other ◽  
Local People ◽  
Natural Phenomena ◽  
Mughal Empire ◽  
The Public ◽  
British Raj ◽  
The Subject ◽  
Other World ◽  
Better Than

The sphere of the unknown, supernatural and miraculous is one of the most popular subjects for everyday discussions in Ayodhya – the last of the provinces of the Mughal Empire, which entered the British Raj in 1859, and in the distant past – the space of many legendary and mythological events. Mostly they concern encounters with inhabitants of the “other world” – spirits, ghosts, jinns as well as miraculous healings following magic rituals or meetings with the so-called saints of different religions (Hindu sadhus, Sufi dervishes),with incomprehensible and frightening natural phenomena. According to the author’s observations ideas of the unknown in Avadh are codified and structured in Avadh better than in other parts of India. Local people can clearly define if they witness a bhut or a jinn and whether the disease is caused by some witchcraft or other reasons. Perhaps that is due to the presence in the holy town of a persistent tradition of katha, the public presentation of plots from the Ramayana epic in both the narrative and poetic as well as performative forms. But are the events and phenomena in question a miracle for the Avadhvasis, residents of Ayodhya and its environs, or are they so commonplace that they do not surprise or fascinate? That exactly is the subject of the essay, written on the basis of materials collected by the author in Ayodhya during the period of 2010 – 2019. The author would like to express his appreciation to Mr. Alok Sharma (Faizabad) for his advice and cooperation.

Temperature Effects during Endodormancy Induction on Subsequent Anthesis and Growth of Peach Trees

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 452c-452 ◽  
Author(s):  
Schuyler D. Seeley ◽  
Raymundo Rojas-Martinez ◽  
James Frisby
Keyword(s):  
Temperature Effects ◽  
Shoot Length ◽  
The Other ◽  
Nighttime Temperatures ◽  
Peach Trees ◽  
Better Than

Mature peach trees in pots were treated with nighttime temperatures of –3, 6, 12, and 18 °C for 16 h and a daytime temperature of 20 °C for 8 h until the leaves abscised in the colder treatments. The trees were then chilled at 6 °C for 40 to 70 days. Trees were removed from chilling at 40, 50, 60, and 70 days and placed in a 20 °C greenhouse under increasing daylength, spring conditions. Anthesis was faster and shoot length increased with longer chilling treatments. Trees exposed to –3 °C pretreatment flowered and grew best with 40 days of chilling. However, they did not flower faster or grow better than the other treatments with longer chilling times. There was no difference in flowering or growth between the 6 and 12 °C pretreatments. The 18 °C pretreatment resulted in slower flowering and very little growth after 40 and 50 days of chilling, but growth was comparable to other treatments after 70 days of chilling.

Nglyc: A Random Forest Method for Prediction of N-Glycosylation Sites in Eukaryotic Protein Sequence

2020 ◽  
Vol 27 (3) ◽  
pp. 178-186 ◽  
Author(s):  
Ganesan Pugalenthi ◽  
Varadharaju Nithya ◽  
Kuo-Chen Chou ◽  
Govindaraju Archunan
Keyword(s):  
Random Forest ◽  
Protein Sequence ◽  
Glycosylation Site ◽  
Computational Method ◽  
The Other ◽  
Eukaryotic Protein ◽  
Random Forest Method ◽  
Glycosylation Sites ◽  
Human And Mouse ◽  
Better Than

Background: N-Glycosylation is one of the most important post-translational mechanisms in eukaryotes. N-glycosylation predominantly occurs in N-X-[S/T] sequon where X is any amino acid other than proline. However, not all N-X-[S/T] sequons in proteins are glycosylated. Therefore, accurate prediction of N-glycosylation sites is essential to understand Nglycosylation mechanism. Objective: In this article, our motivation is to develop a computational method to predict Nglycosylation sites in eukaryotic protein sequences. Methods: In this article, we report a random forest method, Nglyc, to predict N-glycosylation site from protein sequence, using 315 sequence features. The method was trained using a dataset of 600 N-glycosylation sites and 600 non-glycosylation sites and tested on the dataset containing 295 Nglycosylation sites and 253 non-glycosylation sites. Nglyc prediction was compared with NetNGlyc, EnsembleGly and GPP methods. Further, the performance of Nglyc was evaluated using human and mouse N-glycosylation sites. Results: Nglyc method achieved an overall training accuracy of 0.8033 with all 315 features. Performance comparison with NetNGlyc, EnsembleGly and GPP methods shows that Nglyc performs better than the other methods with high sensitivity and specificity rate. Conclusion: Our method achieved an overall accuracy of 0.8248 with 0.8305 sensitivity and 0.8182 specificity. Comparison study shows that our method performs better than the other methods. Applicability and success of our method was further evaluated using human and mouse N-glycosylation sites. Nglyc method is freely available at https://github.com/bioinformaticsML/ Ngly.

pLoc_bal-mEuk: Predict Subcellular Localization of Eukaryotic Proteins by General PseAAC and Quasi-balancing Training Dataset

2019 ◽  
Vol 15 (5) ◽  
pp. 472-485 ◽  
Author(s):  
Kuo-Chen Chou ◽  
Xiang Cheng ◽  
Xuan Xiao
Keyword(s):  
Drug Development ◽  
Subcellular Localization ◽  
Basic Research ◽  
The Other ◽  
Training Dataset ◽  
Sequence Information ◽  
Eukaryotic Proteins ◽  
Validation Tests ◽  
User Friendly ◽  
Better Than

<P>Background/Objective: Information of protein subcellular localization is crucially important for both basic research and drug development. With the explosive growth of protein sequences discovered in the post-genomic age, it is highly demanded to develop powerful bioinformatics tools for timely and effectively identifying their subcellular localization purely based on the sequence information alone. Recently, a predictor called “pLoc-mEuk” was developed for identifying the subcellular localization of eukaryotic proteins. Its performance is overwhelmingly better than that of the other predictors for the same purpose, particularly in dealing with multi-label systems where many proteins, called “multiplex proteins”, may simultaneously occur in two or more subcellular locations. Although it is indeed a very powerful predictor, more efforts are definitely needed to further improve it. This is because pLoc-mEuk was trained by an extremely skewed dataset where some subset was about 200 times the size of the other subsets. Accordingly, it cannot avoid the biased consequence caused by such an uneven training dataset. </P><P> Methods: To alleviate such bias, we have developed a new predictor called pLoc_bal-mEuk by quasi-balancing the training dataset. Cross-validation tests on exactly the same experimentconfirmed dataset have indicated that the proposed new predictor is remarkably superior to pLocmEuk, the existing state-of-the-art predictor in identifying the subcellular localization of eukaryotic proteins. It has not escaped our notice that the quasi-balancing treatment can also be used to deal with many other biological systems. </P><P> Results: To maximize the convenience for most experimental scientists, a user-friendly web-server for the new predictor has been established at http://www.jci-bioinfo.cn/pLoc_bal-mEuk/. </P><P> Conclusion: It is anticipated that the pLoc_bal-Euk predictor holds very high potential to become a useful high throughput tool in identifying the subcellular localization of eukaryotic proteins, particularly for finding multi-target drugs that is currently a very hot trend trend in drug development.</P>

Preliminary Functional Outcomes and Quality of Life after Tongue Reconstruction with the Vastus Lateralis Myofascial Free Flap

2021 ◽  
Author(s):  
Armando De Virgilio ◽  
Andrea Costantino ◽  
Raul Pellini ◽  
Gerardo Petruzzi ◽  
Giuseppe Mercante ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Head And Neck ◽  
Free Flap ◽  
Functional Outcomes ◽  
Vastus Lateralis ◽  
Life Questionnaire ◽  
Donor Area ◽  
Tongue Reconstruction ◽  
Eortc Qlq

AbstractThe 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.

scholarly journals Longitudinal Changes of Tongue Thickness and Tongue Pressure in Neuromuscular Disorders

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
George Umemoto ◽  
Shinsuke Fujioka ◽  
Hajime Arahata ◽  
Nobutaka Sakae ◽  
Naokazu Sasagasako ◽  
...  
Keyword(s):  
Neuromuscular Disorders ◽  
The Other ◽  
Tongue Pressure ◽  
Swallowing Function ◽  
Longitudinal Changes ◽  
Swallowing Dysfunction ◽  
The Relationship ◽  
Lateral Sclerosis

Abstract Background Swallowing dysfunction is related to major cause of adverse events and an indicator of shorter survival among patients with neuromuscular disorders (NMD). It is critical to assess the swallowing function during disease progression, however, there are limited tools that can easily evaluate swallowing function without using videofluoroscopic or videoendoscopic examination. Here, we evaluated the longitudinal changes in tongue thickness (TT) and maximum tongue pressure (MTP) among patients with amyotrophic lateral sclerosis (ALS), myotonic dystrophy type 1 (DM1), and Duchenne muscular dystrophy (DMD). Methods Between 2010 and 2020, TT and MTP were measured from 21 ALS, 30 DM1, and 14 DMD patients (mean ages of 66.9, 44.5, and 21.4 years, respectively) at intervals of more than half a year. TT was measured, by ultrasonography, as the distance from the mylohyoid muscle raphe to the tongue dorsum, and MTP was determined by measuring the maximum compression on a small balloon when pressing the tongue against the palate. Then we examined the relationship between these evaluations and patient background and swallowing function. Results Mean follow-up periods were 24.0 months in the ALS group, 47.2 months in the DM1group, and 61.1 months in the DMD group. The DMD group demonstrated larger first TT than the other groups, while the DM1 group had lower first MTP than the ALS group. The ALS group showed a greater average monthly reduction in mean TT than the DM1 group and greater monthly reductions in mean body weight (BW) and MTP than the other groups. Significant differences between the first and last BW, TT, and MTP measures were found only in the ALS group. Conclusions This study suggests that ALS is associated with more rapid degeneration of tongue function over several years compared to DMD and DM1.

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