LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 50

Search options

  1. Article ; Online: Holmium:YAG laser-assisted intraductal sialendoscopic lithotripsy under local anesthesia.

    Sideris, Giorgos / Konstantinidis, Iordanis / Kourklidou, Melina / Chatziavramidis, Aggelos / Delides, Alexander

    Journal of stomatology, oral and maxillofacial surgery

    2023  Volume 125, Issue 2, Page(s) 101643

    Abstract: Objectives: This retrospective multi-institutional chart review study aims to present results from patients treated with Holmium:YAG laser-assisted sialendoscopic intraductal lithotripsy under local anesthesia.: Methods: Preoperative ultrasound and/ ... ...

    Abstract Objectives: This retrospective multi-institutional chart review study aims to present results from patients treated with Holmium:YAG laser-assisted sialendoscopic intraductal lithotripsy under local anesthesia.
    Methods: Preoperative ultrasound and/or CT were used for location and measurement of the stones. Local anesthesia was applied in all patients, Marchal all-in- one 1.3 mm and Erlangen 1.6 sialendoscopes were used. The laser was used with power settings limited by discomfort or pain. Inclusion criteria were stone size (all >5 mm) and fixed stones.
    Results: 42 patients, 48 stones were treated (30 males/12 females), 21 submandibular and 21 parotid. Ages ranged from 20 to 70 years (95 % CI: 43.37-51.58). Mean size was 6.2 mm (95 % CI: 5.71-6.72). Complete fragmentation was achieved in 66.7 % and incomplete in 33.3 %. Out of the incomplete fragmented 14 cases, seven (50 %) remained symptom free on follow-up. Maximum duration was 120 min. Minimum power settings of the laser was 4.8 Watts and maximum 18 Watts. Six patients expressed pain or discomfort that limited power increase and duration of the procedure. Total follow up time was 10 years. There were no major complications such as hemorrhage, nerve paresis or skin ulceration.
    Conclusion: The procedure is safe under local anesthesia, well tolerated by most patients and should be used in cases of small fixed and "intermediate-sized" stones as a single modality. Discomfort may limit power settings and duration. The later is the major disadvantage of the method.
    MeSH term(s) Male ; Female ; Humans ; Young Adult ; Adult ; Middle Aged ; Aged ; Holmium ; Retrospective Studies ; Lasers, Solid-State/therapeutic use ; Anesthesia, Local ; Treatment Outcome ; Salivary Gland Calculi/surgery ; Lithotripsy/methods ; Pain
    Chemical Substances Holmium (W1XX32SQN1)
    Language English
    Publishing date 2023-09-22
    Publishing country France
    Document type Journal Article
    ZDB-ID 2916276-2
    ISSN 2468-7855 ; 2468-8509
    ISSN (online) 2468-7855
    ISSN 2468-8509
    DOI 10.1016/j.jormas.2023.101643
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Fiberoptic Endoscopic Evaluation of Swallowing Findings in Children With Rett Syndrome.

    Sideris, Giorgos / Panagoulis, Evangelos / Grigoropoulos, Christos / Mermiri, Despina / Nikolopoulos, Thomas / Delides, Alexander

    Clinical pediatrics

    2023  Volume 63, Issue 4, Page(s) 551–556

    Abstract: Feeding abnormalities, swallowing dysfunction, and gastrointestinal issues cause poor weight gain, oral motor dysfunction, and air swallowing in children with Rett syndrome (RTT). Pneumonia is the leading cause of death. Our study describes fiberoptic ... ...

    Abstract Feeding abnormalities, swallowing dysfunction, and gastrointestinal issues cause poor weight gain, oral motor dysfunction, and air swallowing in children with Rett syndrome (RTT). Pneumonia is the leading cause of death. Our study describes fiberoptic endoscopic swallowing findings in 11 female RTT children. Each patient was evaluated using the 8-point Penetration/Aspiration Scale (PAS). The average age was 7 years. All patients had tongue dyskinesis and prolonged oral stage. Eight girls exhibited liquid entering the airway without coughing, whereas 6 did well with pureed meal. Three girls had pneumonia. Age was not correlated with pneumonia episodes (
    MeSH term(s) Child ; Humans ; Female ; Deglutition ; Deglutition Disorders/etiology ; Rett Syndrome/complications ; Rett Syndrome/diagnosis ; Endoscopy/adverse effects ; Respiratory Aspiration/etiology ; Respiratory Aspiration/complications ; Pneumonia/complications
    Language English
    Publishing date 2023-07-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 207678-0
    ISSN 1938-2707 ; 0009-9228
    ISSN (online) 1938-2707
    ISSN 0009-9228
    DOI 10.1177/00099228231184673
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Matrix-based molecular mechanisms, targeting and diagnostics in oral squamous cell carcinoma.

    Mastronikolis, Nicholas S / Kyrodimos, Efthymios / Piperigkou, Zoi / Spyropoulou, Despoina / Delides, Alexander / Giotakis, Evangelos / Alexopoulou, Miranda / Bakalis, Nick A / Karamanos, Nikos K

    IUBMB life

    2024  

    Abstract: Oral squamous cell carcinoma (OSCC) is a head and neck cancer (HNC) with a high mortality rate. OSCC is developed in the oral cavity and it is triggered by many etiologic factors and can metastasize both regionally and distantly. Recent research advances ...

    Abstract Oral squamous cell carcinoma (OSCC) is a head and neck cancer (HNC) with a high mortality rate. OSCC is developed in the oral cavity and it is triggered by many etiologic factors and can metastasize both regionally and distantly. Recent research advances in OSCC improved our understanding on the molecular mechanisms involved in and the initiation of OSCC metastasis. The key roles of the extracellular matrix (ECM) in OSCC are an emerging area of intensive research as the ECM macromolecular network is actively involved in events that regulate cellular morphological and functional properties, transcription and cell signaling mechanisms in invasion and metastasis. The provisional matrix that is formed by cancer cells is profoundly different in composition and functions as compared with the matrix of normal tissue. Fibroblasts are mainly responsible for matrix production and remodeling, but in cancer, the tumor matrix in the tumor microenvironment (TME) also originates from cancer cells. Even though extensive research has been conducted on the role of ECM in regulating cancer pathogenesis, its role in modulating OSCC is less elucidated since there are several issues yet to be fully understood. This critical review is focused on recent research as to present and discuss on the involvement of ECM macromolecular effectors (i.e., proteoglycans, integrins, matrix metalloproteinases) in OSCC development and progression.
    Language English
    Publishing date 2024-01-02
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1492141-8
    ISSN 1521-6551 ; 1521-6543
    ISSN (online) 1521-6551
    ISSN 1521-6543
    DOI 10.1002/iub.2803
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Unsupervised Screen Exposure and Poor Language Development: A Scoping Review to Assess Current Evidence and Suggest Priorities for Research.

    Korres, Georgios / Kourklidou, Melina / Sideris, Giorgos / Bastaki, Despoina / Demagkou, Aikaterini / Riga, Maria / Gogoulos, Panagiotis / Nikolopoulos, Thomas / Delides, Alexander

    Cureus

    2024  Volume 16, Issue 3, Page(s) e56483

    Abstract: Screen exposure has both negative and positive effects on the level of language skills a child acquires. The purpose of this review is to address current literature on the possible relationship between unsupervised screen exposure and language ... ...

    Abstract Screen exposure has both negative and positive effects on the level of language skills a child acquires. The purpose of this review is to address current literature on the possible relationship between unsupervised screen exposure and language development in children and to provide recommendations to caregivers regarding screen exposure of children, taking into consideration the possible effects. A scoping review was conducted using the PubMed/MEDLINE (Medical Literature Analysis and Retrieval System Online) database. A total of 590 articles were retrieved and considered for inclusion. Twenty-one articles were finally included and reviewed with an emphasis on language, communication, and executive skills as well as cognitive development. The negative effects of screen exposure for children outweigh the positive effects. The largest number of studies demonstrate that unsupervised screen exposure may negatively impact a child's language usage and cognitive and executive skills, disrupt playtime, and affect the quality of sleep. On the other hand, supervised screen use is associated with improved language skills. More evidence is needed on unsupervised exposure in children to new types of screens. As technology could play a significant role in schools in the future, additional research is required to create educational media for schoolchildren with specific guidelines.
    Language English
    Publishing date 2024-03-19
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.56483
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Neuroendocrine and undifferentiated sinonasal and skull base tumors: An up-to-date narrative review.

    Sideris, Giorgos / Solomos, Panagiotis / Gogoulos, Panagiotis / Margaris, Ioannis / Panagoulis, Evangelos / Vlastarakos, Petros / Karamagkiolas, Sotirios / Tzagkaroulakis, Michael / Nikolopoulos, Thomas / Delides, Alexander

    Oral and maxillofacial surgery

    2024  

    Abstract: Tumors located in the nasal cavity, paranasal sinuses and the skull base comprise a wide range of histologic subtypes. Among them, neuroendocrine and undifferentiated tumors are rare but noteworthy, because of their distinctive features, aggressive ... ...

    Abstract Tumors located in the nasal cavity, paranasal sinuses and the skull base comprise a wide range of histologic subtypes. Among them, neuroendocrine and undifferentiated tumors are rare but noteworthy, because of their distinctive features, aggressive nature, and diagnostic complexities. A literature search was conducted in the PubMed/MEDLINE and the Scopus databases from 2019 until inception. The keywords "neuroendocrine", "undifferentiated", "nose", "sinonasal", "paranasal", "skull base" were used. Thirty-eight articles referring to neuroendocrine and undifferentiated tumors of the nose, paranasal sinuses and the skull base were finally included and analyzed. Neuroendocrine and undifferentiated tumors of the nose, paranasal sinuses and the skull base are infrequent malignancies, most commonly affecting middle-aged men. They usually present with non-specific symptoms, even though ocular or neurologic manifestations may occur. Prognosis is generally poor; however, novel targeted and immunological therapies have shown promising results. Sinonasal Neuroendocrine Carcinomas (SNECs) carry distinct histological and immunohistochemical features. Management consists of surgical resection coupled with systematic therapy. Sinonasal Undifferentiated Carcinomas (SNUCs) lack specific squamous or glandular features. They typically stain positive for pancytokeratin and INI1 antibody. Treatment includes induction chemotherapy, followed by a combination of chemotherapy and radiotherapy. Olfactory neuroblastomas (ONBs) have neuroepithelial or neuroblastic features. They show diffuse positivity for various markers, including synaptophysin, chromogranin, and neuron-specific enolase (NSE). Surgical resection plus radiotherapy is considered the treatment of choice. In conclusion, neuroendocrine and undifferentiated tumors arising from the nose, paranasal sinuses and the skull base represent a unique group of malignancies. A thorough understanding of their clinical features, molecular changes, diagnostic approaches, treatment modalities, and prognostic factors is critical for providing optimal patient care. Still, continued research efforts and multidisciplinary collaboration are warranted, in order to improve outcomes for patients diagnosed with these rare and aggressive tumors.
    Language English
    Publishing date 2024-03-19
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 2406731-3
    ISSN 1865-1569 ; 1865-1550
    ISSN (online) 1865-1569
    ISSN 1865-1550
    DOI 10.1007/s10006-024-01240-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: A Systematic Review of Intracranial Complications in Adults with Pott Puffy Tumor over Four Decades.

    Sideris, Giorgos / Davoutis, Efstathia / Panagoulis, Evangelos / Maragkoudakis, Pavlos / Nikolopoulos, Thomas / Delides, Alexander

    Brain sciences

    2023  Volume 13, Issue 4

    Abstract: The purpose of this study is to investigate the risk factors of intracranial complications in adult patients with Pott Puffy Tumor (PPT). A systematic review was conducted of clinical studies from January 1983 to December 2022 that reported on PPT adult ... ...

    Abstract The purpose of this study is to investigate the risk factors of intracranial complications in adult patients with Pott Puffy Tumor (PPT). A systematic review was conducted of clinical studies from January 1983 to December 2022 that reported on PPT adult patients. The full-text articles were reviewed for the patients' ages, sex, cultured organisms, surgical procedures, clinical sequalae, and underlying diseases that may affect the onset of intracranial complications in PPT adult patients. A total of 106 studies were included. Medical data were reviewed for 125 patients (94 males, 31 females). The median age was 45 years. A total of 52% had comorbidities, mostly head trauma (24.5%), sinus/neurosurgical operations (22.4%), immunosuppression conditions (13.3%), diabetes mellitus (9.1%), cocaine use (7.1%), or dental infections (6.1%). A total of 28 cultures revealed Streptococcus (22.4%), 24 contained staphylococci (19.2%), and 22 cultures contained other pathogens (17.6%). An amount of 30.4% developed intracranial complications, with the most common being epidural abscesses or empyemas (55.3%), as well as subdural (15.7%) and extradural lesions (13.2%). Age, DM, and immunosuppression conditions are significantly associated with intracranial complications (
    Language English
    Publishing date 2023-03-30
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2651993-8
    ISSN 2076-3425
    ISSN 2076-3425
    DOI 10.3390/brainsci13040587
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article: Sinonasal Neuroendocrine Carcinoma in Adult Proteus Syndrome.

    Sideris, Giorgos / Nikolopoulos, Thomas / Sourla, Antigone / Korkolopoulou, Penelope / Papadakis, Pavlos / Delides, Alexander

    Iranian journal of otorhinolaryngology

    2023  Volume 35, Issue 131, Page(s) 321–324

    Abstract: Introduction: Proteus syndrome (PS) is a rare genetic disorder usually caused by mutations in AKT1 or PTEN genes, characterized by multiple, asymmetric tissue overgrowth with high clinical variability. Sinonasal neuroendocrine carcinomas (SNEC) are ... ...

    Abstract Introduction: Proteus syndrome (PS) is a rare genetic disorder usually caused by mutations in AKT1 or PTEN genes, characterized by multiple, asymmetric tissue overgrowth with high clinical variability. Sinonasal neuroendocrine carcinomas (SNEC) are exceptionally rare tumors encountered in the ethmoid sinus, nasal cavity, or maxillary sinus.
    Case report: We report a 35-year-old patient with PS, who underwent successful surgical removal of a well-differentiated SNEC obstructing his nasal cavity and highlight the role of the otolaryngologist for safe airway management, minimal surgical intervention and coordination of the multidisciplinary care. Histologically, focally hyperplastic mucosal epithelium of respiratory type of the nasal chamber was noticed along with seromucinous glands and capillary congestion of the subepithelial fibrovascular tissue. The limited presence of neoplastic tissue with histomorphological and immunophenotypic features of a neuroendocrine neoplasm was focally observed. Tumor cells grow in the form of islets within a vascular stroma; these neoplastic cells are immunohistochemically positive for synaptophysin, CD56, EMA, Ki67 (low expression, cell proliferation rate: 2%), CD31, chromogranin and pancytokeratin AE1 / AE3 as well as for S-100 protein (weak intensity).
    Conclusions: This first description of a SNEC in a PS patient, might hint towards a common basis between the two conditions, due to the mosaic AKT1 variant and an activated AKT/PIK3CA/PTEN pathway.
    Language English
    Publishing date 2023-11-22
    Publishing country Iran
    Document type Case Reports
    ZDB-ID 3018470-8
    ISSN 2251-726X ; 2251-7251
    ISSN (online) 2251-726X
    ISSN 2251-7251
    DOI 10.22038/IJORL.2023.73128.3472
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Conservative Otosclerosis Treatment With Sodium Fluoride and Other Modern Formulations: A Systematic Review.

    Gogoulos, Panagiotis P / Sideris, Giorgos / Nikolopoulos, Thomas / Sevastatou, Electra K / Korres, George / Delides, Alexander

    Cureus

    2023  Volume 15, Issue 2, Page(s) e34850

    Abstract: Otosclerosis, also known as otospongiosis, is a primary osteodystrophy of the otic capsule of the inner ear and one of the leading causes of deafness in adults. The rationale for medical therapy for otospongiosis is to slow down and eventually stop the ... ...

    Abstract Otosclerosis, also known as otospongiosis, is a primary osteodystrophy of the otic capsule of the inner ear and one of the leading causes of deafness in adults. The rationale for medical therapy for otospongiosis is to slow down and eventually stop the phase of bone resorption. Conservative treatments include sodium fluoride (NaF), bisphosphonates, and other modern medicines. A systematic review of the existing and published articles and books until April 2021 has been conducted in Medscape, Google Scholar, PubMed, and other databases using appropriate terms. According to the results of the research, the administration of NaF for a period of at least six months stabilizes hearing thresholds (HTs), improves vestibular symptoms, and delays the worsening of tinnitus. The administration of bisphosphonates for a period of at least six months showed significant percentage differences in the improvement of hearing loss, dizziness, and tinnitus remission. In the already existing double-blind studies that were evaluated, groups of patients treated with bisphosphonates for at least 24 months showed greater stabilization of the mean air and bone conduction thresholds than groups of patients treated with a placebo. The new modern medications have not yet been widely administered clinically to draw useful conclusions, although the test results of some of their use are quite encouraging.
    Language English
    Publishing date 2023-02-10
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.34850
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Fourteen cases of acute invasive fungal rhinosinusitis: is there a place for less aggressive surgical treatment?

    Sideris, Giorgos / Arvaniti, Antonia / Giotakis, Evaggelos / Maragoudakis, Pavlos / Delides, Alexander

    Oral and maxillofacial surgery

    2022  Volume 28, Issue 1, Page(s) 157–162

    Abstract: Purpose: Acute invasive fungal rhinosinusitis (AIFRS) is a rare, fulminant, angio-invasive infection with high mortality rate. Treatment of AIFRS includes aggressive surgical debridement combined with antifungal agents and treatment of the underlying ... ...

    Abstract Purpose: Acute invasive fungal rhinosinusitis (AIFRS) is a rare, fulminant, angio-invasive infection with high mortality rate. Treatment of AIFRS includes aggressive surgical debridement combined with antifungal agents and treatment of the underlying disease. The aim of this study is to report our experience with this often fatal disease and estimate the long-term survival of AIFRS patients with more conservative surgery.
    Methods: A retrospective study was performed on immunocompromised adults with AIFRS from January 2011 to December 2020. The diagnosis was histologically confirmed by tissue fungus invasion. We analyze epidemiological and microbiological findings, the underlying disease and discuss our patients' treatment plan and long-term survival.
    Results: Fourteen patients were included in the study. Mean age was 53.8 ± 18.9 years. The underlying disease was hematologic malignancy in nine patients, diabetes mellitus in three, aplastic anemia in one, and renal/liver failure in one. Leukopenia was not significantly correlated with outcome or survival. Histological and culture findings revealed that Mucor/Rhizopus were the causative organisms in nine cases. All patients received systemic antifungal therapy. Surgery was performed in nine patients (endoscopic for all patients, combined in three with an external approach). Overall survival was 35.7% as five patients survived, two who underwent surgery, and three who were treated non-surgically. Nine patients died, two from AIFRS after central nervous system involvement and seven from their primary disease, free of fungi. Older individuals and patients with hematologic malignancies had a worse outcome.
    Conclusion: Early surgical debridement, antifungal agents, and treatment of the underlying disease remain the cornerstones of AIFRS management. Prognosis is overall defined by the underlying disease and in some selected cases, medical treatment alone could be a reasonable option.
    MeSH term(s) Adult ; Humans ; Middle Aged ; Aged ; Antifungal Agents/therapeutic use ; Rhinitis/drug therapy ; Rhinitis/surgery ; Retrospective Studies ; Rhinosinusitis ; Sinusitis/surgery ; Sinusitis/diagnosis ; Acute Disease
    Chemical Substances Antifungal Agents
    Language English
    Publishing date 2022-10-06
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2406731-3
    ISSN 1865-1569 ; 1865-1550
    ISSN (online) 1865-1569
    ISSN 1865-1550
    DOI 10.1007/s10006-022-01120-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Timing of Tracheotomy in Intubated Patients With COVID-19.

    Delides, Alexander / Maragoudakis, Pavlos / Nikolopoulos, Thomas

    Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery

    2020  Volume 163, Issue 2, Page(s) 328–329

    Abstract: Timing of elective tracheotomy in the intensive care unit for intubated patients with COVID-19 is still unclear. Recent recommendations and guidelines describe the surgical steps to achieve maximum protection of the involved medical staff and propose a ... ...

    Abstract Timing of elective tracheotomy in the intensive care unit for intubated patients with COVID-19 is still unclear. Recent recommendations and guidelines describe the surgical steps to achieve maximum protection of the involved medical staff and propose a delay of the procedure, so the viral load is decreased. Most authors of these recommendations agree that tracheotomy should be performed after at least 14 days from intubation, but data on this subject are still lacking. We discuss the issue of timing for such a procedure in regard to viral load and propose that the decision should be predominately based on its calculation.
    MeSH term(s) Betacoronavirus/isolation & purification ; COVID-19 ; Coronavirus Infections/surgery ; Coronavirus Infections/therapy ; Coronavirus Infections/virology ; Elective Surgical Procedures ; Humans ; Intensive Care Units ; Intubation, Intratracheal ; Pandemics ; Pneumonia, Viral/surgery ; Pneumonia, Viral/therapy ; Pneumonia, Viral/virology ; Respiration, Artificial ; SARS-CoV-2 ; Time Factors ; Tracheotomy ; Viral Load
    Keywords covid19
    Language English
    Publishing date 2020-05-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 392085-9
    ISSN 1097-6817 ; 0161-6439 ; 0194-5998
    ISSN (online) 1097-6817
    ISSN 0161-6439 ; 0194-5998
    DOI 10.1177/0194599820930668
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top