Acta medica academica最新文献

Objective: This study aimed to analyze the crown and root morphology of maxillary and mandibular third molars, and assess their position in relation to adjacent anatomical structures using clinical examination and radiographic images.

Materials and methods: A total of 176 extracted impacted or partially impacted third molars were included in this study. Orthopantomogram images (OPG) were used to evaluate the number of roots, position, depth of impaction relative to the occlusal plane of the second molar, and angulation of maxillary and mandibular third molars. The extracted teeth were examined to determine the actual number of roots. The root morphology was classified using the Alavi classification system for maxillary third molars and the Machado classification for mandibular third molars. Additionally, the number of cusps, crown dimensions, and morphology were analyzed using digital and dental calipers.

Results: The extracted samples exhibited a significantly higher number of roots compared to the number assessed on OPG images (P<0.001). The majority of mandibular third molars had two fused roots (37.39%) and a five-cuspid crown (48.70%), while maxillary third molars had three fused roots (26.23%) and four cusps (42.62%). Both maxillary (60.66%) and mandibular third molars (61.74%) were predominantly vertically positioned. Regarding the depth of impaction, maxillary third molars were primarily classified as Class C (65.57%), while mandibular third molars were classified as Class B (47.83%). Differences in crown shape were observed, with maxillary crowns being mostly triangular (36.07%) and mandibular crowns being oval (38.26%). Maxillary third molars had shorter crowns compared to mandibular third molars (P<0.05).

Conclusion: The root morphology of maxillary and mandibular third molars in the population of Bosnia and Herzegovina displays variability. Orthopantomogram imaging was found to be inadequate for accurate determination of the number of roots in third molars. The number of cusps on third molars cannot be relied upon as a predictor of the number of roots. The study's findings will have implications for dental practice, particularly for oral surgeons and restorative dentists.

Objective: This cross-sectional study determines the impact of the pandemic lockdowns on physical activity, and evaluates the factors associated with physical activity cessation on students and personnel of eight Greek Higher Education Institutions.

Materials and methods: A total of 6,380 volunteer participants completed a survey reporting their physical activity levels and perceptions during the COVID-19 pandemic. The survey was made available through an online platform.

Results: Both the conduct and intensity of physical activity were significantly reduced from the pre-pandemic era to the second lockdown (P<0.001). Walking was the most frequently selected type of physical activity, in all periods except for the second lockdown. Loss of interest (52.4%) was the main, self-reported factor for cessation of physical activity. Females had a 31% lower probability of ceasing physical activity during lockdowns.

Conclusion: The conduct and intensity of physical activity decreased significantly during the pandemic. Female gender, annual checkup attendance, and specific physical activity types during the pre-pandemic era were associated with a reduction in the risk of pausing physical activity during lockdowns. Lockdowns may be implemented in future health crises, hence measures for maintaining the physical activity of the general population, such as online group sessions and support from healthcare professionals, should be prepared.

Objective: The objective of the current study was the examination of possible variants of the celiac trunk.

Methods: An advanced review of the literature search was undertaken by means of the PubMed database and Google Scholar, searching for new studies published up to October 2022. Additional articles provided useful information in relation to the aim of this review. Hence, articles that met the inclusion criteria were included in this review and the collected data were organized into a table.

Results: The search of the literature retrieved 10 articles that referred to the anatomical variations of the celiac trunk. According to the available literature, the most common anatomical variations are: hepatosplenic trunk where the left gastric artery originates from the abdominal aorta, hepatosplenic trunk, where the left gastric artery originates from the splenic artery, and hepatogastric trunk and splenic artery origin from the superior mesenteric artery. Many other anatomical variations of the celiac trunk may exist, such as tetrafurcation, pentafurcation and hexafurcation, that refer to the division of the celiac trunk into four, five or six branches, respectively, and should be reported as they can affect surgical approaches and the development of the appropriate treatment strategy in patients.

Conclusion: Every visceral surgeon, interventional radiologist and abdominal imager should be familiar with these variants.

Objective: The aim of the present series was first to present our experience in the management of 37 patients with spontaneous pneumomediastinum (SPM), and further to indicate the necessity of identifying true SPM cases as they are currently inadequately defined.

Methods: This is a single-center, retrospective study, conducted in a university hospital. Consecutive adult patients with pneumomediastinum (PM) between January 2009 and March 2020 were involved in the series. The data about age, gender, symptoms, signs, treatment, length of hospital stay (LOS), and in-hospital mortality were evaluated.

Results: In total, 87 cases with pneumomediastinum (37 with spontaneous and 50 with secondary PM) were analyzed. Patients in both groups were of similar ages (P=0.4). Sufferers with secondary PM were more likely to have: an associated pneumothorax (19% vs 58%, P<0.05), a chest tube placed (18.9% vs 58%, P<0.05), an associated pleural effusion (0% vs 18%, P<0.05). They presented with a longer LOS (3.9 vs 5.3 days, P<0.05), and were more likely to die (0% vs 10%, P<0.05). Additionally they showed a higher prevalence of radiologic subcutaneous emphysema (49% vs 74%, P<0.05).

Conclusion: Spontaneous pneumomediastinum is an onset of clinical importance with a low mortality rate, short LOS and good longterm prognosis. It often presents with chest pain, dyspnea and/or subcutaneous emphysema. However, secondary causes of mediastinal air must be ruled out, due to their potential devastating outcome if not diagnosed promptly. A consensus aimed at an update of the classification guidelines is more than indispensable.

Objective: The aim of this study was to present data on the prevalence of seropositive children tested in the laboratory of the Eurofarm polyclinic in Sarajevo, from September 2020 to May 2021.

Materials and methods: Peripheral blood samples were collected and anti-SARS-CoV-2 antibodies were detected using an electrochemiluminescence immunoassay.

Results: In the total of 762 tested children, 187 were positive (24.5%), based on cut-off value. Of all the positive cases 42.8% were female while 57.2% were male. There were 10.1% of positive children in the first age group (0-5 years), 44.4% in the second group (6-13 years), and 45.5% in the third group (14-18 years). There was no statistically significant difference in seroprevalence between age groups and gender. The lowest seroprevalence (3.6%) was observed in October 2020 after the first pandemic wave, and the highest seroprevalence (60.3%) was observed in April 2021, corresponding to the third pandemic wave.

Conclusion: The results of our study showed that the seroprevalence in children was low, especially during the first year of the pandemic. In the second year of the pandemic, there was an evident statistically significant increase in the number of seropositive children. Similar data have been shown in studies for adults.

Objectives: The main objective of this paper was to examine the perceptions of family physicians on the use of primary health care in Bosnia and Herzegovina during the COVID-19 pandemic.

Materials and methods: A cross-sectional study was conducted using a short online questionnaire that was sent to primary care physicians in Bosnia and Herzegovina from April 20th, 2022, to May 20th, 2022.

Results: The research sample consisted of 231 doctors of primary health care from Bosnia and Herzegovina, with an average age of 45 years and 85% women. About 70% of participants reported having COVID-19 at least once from March 2020 to March 2022. Participants had an average of 1,986 registered patients and approximately 50 encounters per day. The study revealed a high degree of reliability between test-retest measurements, with a single measure Intraclass correlation coefficient of 0.801, and internal consistency determined using Cronbach's alpha of 0.89. Participants reported that the following health services were most affected during the COVID-19 pandemic: care for patients with chronic diseases, home visits, navigating the health system with patients making appointments with specialists, cancer screening, and preventive health services. The study also found statistically significant perceived differences in the use of these health services based on age, gender, postgraduate education in family medicine, participation in COVID-19 clinics, and personal history of Covid-19.

Conclusion: There were significant disturbances to the use of primary health care during the COVID-19 pandemic. Future research could investigate patient outcomes compared to family physician perceptions.

Objective: We aimed to investigate the causes and factors predictive of in-hospital death among patients with systemic lupus erythematosus (SLE) admitted to a tertiary care hospital in Thailand.

Materials and methods: We retrospectively reviewed the records of patients with SLE admitted between 2017 and 2021. We collected data related to age, sex, body mass index, comorbidities, disease duration, medication usage, clinical symptoms, vital signs, laboratory results, evidence of infection, presence of systemic inflammatory response syndrome, quick sepsis-related organ assessment scores, and SLE disease activity on the date of admission. The length of hospitalization, treatment administered, and subsequent clinical outcomes (including in-hospital complications and death) were also recorded.

Results: Among 267 enrolled patients, the overall in-hospital mortality rate was 25.5%, and infection was the most common cause of death (75.0%). Multivariate analysis revealed that prior hospitalization within 3 months (odds ratio [OR]: 2.311; 95% confidence interval [CI]: 1.002-5.369; P=0.049), initial infection on admission (OR: 2.764; 95% CI: 1.006-7.594; P=0.048), use of vasopressor drugs (OR: 2.940; 95% CI: 1.071-8.069; P=0.036), and mechanical ventilation (OR: 5.658; 95% CI: 2.046-15.647; P=0.001) were independent risk factors for in-hospital mortality.

Conclusion: Infection was the major cause of mortality in patients with SLE. Prior hospitalization within 3 months, initial infection on admission, vasopressor use, and mechanical ventilation during admission are independent risk factors for in-hospital mortality in patients with SLE.

Objective: The aim of this study is to present a relatively rare case of the coexistence of an incomplete superficial palmar arch and a Berrettini anastomosis, identified in a cadaveric specimen, and further discuss the potential clinical implications of such anatomical variations.

Case report: The variation was found in the left hand of a formalin-fixed male cadaver of Greek origin, that was dissected under an operating microscope (×4, ×10 magnification) in our Anatomy Department. In the specimen, we found an incomplete superficial palmar arch, formed only by the superficial branch of the ulnar artery, and a Type 1 Berrettini Anastomosis, originating from the ulnar nerve and joining a branch of the median nerve.

Conclusion: To avoid iatrogenic damage and permanent loss of sensation, hand surgeons and microsurgeons should be aware of the presence of a BA, and the potential coexistence of this variation with vascular abnormalities in the hand that may complicate surgical procedures.

Objective: To determine the most appropriate delay to start a webinar.

Methods: This cross-sectional study was conducted on weekly general staff scientific webinars held by the Institute of Human Virology (IHV), University of Maryland School of Medicine, Baltimore, USA. 35 observations were made at arbitrary chosen times of three consecutive IHV webinars. After standardizing the number of participants, a 4th-degree polynomial fit was applied to the data. A cost function was defined as the sum of the time wasted for those who attended the webinar early and the lost for those who attend with delay. The cost function was minimized to compute the most appropriate delay to start the webinar.

Results: The model could explain almost 95% of the observed variance in the number of participants. Normally, half of the participants attended the meeting at the webinar set starting time. The cost was a minimum if the webinar was delayed for about 3 minutes.

Conclusion: It seems that the most appropriate time for starting the IHV general staff meetings is around 3 minutes after the webinar set starting time.