Michał Gontarz

Dr. Michał Gontarz

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 April 2021 in Journal of Clinical Medicine
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Michał GontarzMichał Gontarz
Michał Gontarz
Jakub BargielJakub Bargiel
Jakub Bargiel
KGKrzysztof Gąsiorowski
Krzysztof Gąsiorowski
TMTomasz Marecik
Tomasz Marecik
PSPaweł Szczurowski
Paweł Szczurowski
GWGrażyna Aleksandra Wyszyńska-Pawelec
Grażyna Aleksandra Wyszyńska-Pawelec
(1) Background: Epidemiological studies of epithelial salivary gland neoplasms are difficult to conduct effectively due to tumor rarity, histological heterogeneity, tumor location diversity, and a lack of national registries collecting data. This study presents 26 years of epidemiological data from a single institution in southern Poland that estimates incidence rates of primary epithelial salivary gland tumors. (2) Methods: The charts of 805 patients with epithelial salivary gland tumors were retrospectively reviewed. (3) Results: Pleomorphic adenomas occurred less frequently in elderly patients; however, Warthin tumors were more common (p < 0.001). Pediatric patients mainly suffered from mucoepidermoid carcinoma. The estimated crude and European age-standardized incidence rates of all primary epithelial salivary gland tumors were 6.7 and 6.02 per 100,000 population, respectively. The incidence rates of salivary gland tumors increased in recent years; however, this is attributed to an increase in benign tumors (p < 0.001). (4) Conclusions: The incidence of primary epithelial salivary gland tumors in southern Poland has increased over the past 26 years. This increase is attributed to a rise in the number of patients with benign tumors, particularly Warthin tumors in elderly patients. Moreover, the incidence of malignant salivary gland tumors appears to be higher in pediatric patients.

1 January 2018 in International Journal of Oral and Maxillofacial Surgery
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Journal Article
Closed access
Michał GontarzMichał Gontarz
Michał Gontarz
GWG. Wyszyńska-Pawelec
G. Wyszyńska-Pawelec
JZJ. Zapała
J. Zapała

26 October 2023 in Journal of Clinical Medicine
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Journal Article
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Jakub BargielJakub Bargiel
Jakub Bargiel
Michał GontarzMichał Gontarz
Michał Gontarz
TMTomasz Marecik
Tomasz Marecik
PSPaweł Szczurowski
Paweł Szczurowski
KGKrzysztof Gąsiorowski
Krzysztof Gąsiorowski
GWGrażyna Aleksandra Wyszyńska-Pawelec
Grażyna Aleksandra Wyszyńska-Pawelec
(1) Background: Stylohyoid syndrome, known as classical Eagle Syndrome (cES), is characterized by calcification of the stylohyoid chain with numerous nonspecific symptoms, mainly pain. This study introduces minimally invasive cervical styloidectomy (MICS). (2) Methods: MICS was performed on sixty-five patients diagnosed with classical Eagle Syndrome. Patients underwent meticulous differential diagnosis. Surgical plans were established based on the findings from neck angioCT. (3) Results: The healing process was uneventful, without significant complications. The overall success rate was 97.0%, with a follow-up of a minimum of six months. In one case, the surgery did not yield the desired improvement. In one case, a partial relapse of symptoms was observed. (4) Conclusions: MICS is a straightforward and efficient surgical treatment technique for stylohyoid syndrome.

1 January 2021 in Medicina Oral Patología Oral y Cirugia Bucal
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Journal Article
Closed access
Michał GontarzMichał Gontarz
Michał Gontarz
MUM. Urbańska-Gąsiorowska
M. Urbańska-Gąsiorowska
JBJ. Bargiel
J. Bargiel
KGK. Gąsiorowski
K. Gąsiorowski
TMT. Marecik
T. Marecik
GWG. Wyszyńska-Pawelec
G. Wyszyńska-Pawelec
Sublingual gland neoplasms are very rare and the majority of them are malignant. The aim of this study was to evaluate the clinical course, treatment, and outcomes of these uncommon neoplasms based on the authors' experience and the recent literature. The medical charts of 8 patients with primary epithelial sublingual gland tumors treated between 1994 and 2020 were reviewed. Malignant tumors comprised 75% (6/8) of cases. Adenoid cystic carcinoma was the most common (50%, 3/6) and characterized by high risk of local recurrence and lung metastasis. Pleomorphic adenoma was the only representative of benign tumors with no evidence of local recurrence in follow up. Treatment of choice of sublingual gland tumors is surgery. However, due to the fact that adenoid cystic carcinoma is the most common malignancy with poor prognosis, surgical treatment should be combined with postoperative radiotherapy. Benign sublingual tumors are less common and treatment of choice in these cases is tumor resection together with sublingual gland.

17 February 2025 in Frontiers in Oral Health
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WMWeronika Michalik
Weronika Michalik
JTJulia Toppich
Julia Toppich
AŁAdam Łuksza
Adam Łuksza
JBJakub Bargiel
Jakub Bargiel
KGKrzysztof Gąsiorowski
Krzysztof Gąsiorowski
Michał GontarzMichał Gontarz
Michał Gontarz
Introduction: The Facial Injury Severity Scale (FISS) provides a numerical value based on individual fractures that can be a valuable tool for management of maxillofacial trauma patients. The aim of this study was to evaluate the association of epidemiological and clinical factors with facial fracture patterns and their correlations with FISS.Methods: A retrospective study was conducted based on 511 medical records from a 4-year period of patients with facial trauma who underwent open reduction internal fixation (ORIF) under general anesthesia. Fracture patterns were categorized into 3 anatomic subunits: upper, middle and lower face. Single-unit and panfacial fractures groups were analyzed separately. Data regarding demographics, hospitalization, etiology of injury, fracture site and complications were collected. The overall risk of fracture within the viscerocranium requiring an ORIF was presented in graphical form.Results: Single-unit fractures were more typical in younger patients. There was a significant association between FISS score and traumatic etiology, hospitalization time, length of surgery in each group (p < 0.001). For panfacial fractures, FISS >6 indicated prolonged surgery (>2 h) and hospitalization (>1 week).Discussion: Despite the questionable clinical utility of FISS, classifying maxillofacial trauma can facilitate comprehensive treatment planning and multidisciplinary collaboration, particularly in complex cases such as panfacial fractures.

25 October 2024 in Journal of Clinical Medicine
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Journal Article
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Jakub BargielJakub Bargiel
Jakub Bargiel
Michał GontarzMichał Gontarz
Michał Gontarz
KGKrzysztof Gąsiorowski
Krzysztof Gąsiorowski
TMTomasz Marecik
Tomasz Marecik
GWGrażyna Aleksandra Wyszyńska-Pawelec
Grażyna Aleksandra Wyszyńska-Pawelec
Background: Stylohyoid syndrome, also known as classical Eagle syndrome (ES), is a rare condition characterized by elongation of the styloid process (SP) or calcification of the stylohyoid chain, presenting numerous non-specific symptoms. Most papers concerning this rare condition are case reports, case studies, or retrospective studies. This retrospective study delves into the intricacies of Eagle syndrome and evaluates surgical outcomes in patients treated with minimally invasive cervical styloidectomy (MICS). Methods: We conducted a retrospective study of patients treated due to ES between September 2021 and August 2023. Ninety-seven patients were qualified for MICS. Evaluation before and after surgical treatment was conducted during follow-up visits and by a questionnaire that included various data, such as symptoms, pain intensity, evaluation of healing period, and overall patient satisfaction. The minimum follow-up period was six months. Results: After applying inclusion and exclusion criteria, eighty-four patients were qualified for further assessment. The most common symptoms that subsided completely after treatment were pharyngeal foreign body sensation and pain with dysphagia or odynophagia. The MICS procedure proved to be highly effective, with 94.2% of patients experiencing a significant reduction in pain intensity and 97.1% reporting overall success. All patients were satisfied with the aesthetic outcome of the scar. The length of SP and time onset from the first symptoms to treatment positively correlated with the number, intensity, and time required for symptoms to subside. Conclusions: Eagle syndrome should be considered in diagnosing patients with orofacial and cervical pain symptoms, as the time from occurrence of the first symptoms to treatment is crucial. MICS is highly effective and has a low rate of complications in treating ES. Potential scar formation should not be a significant factor when deciding between the intraoral and external approaches.