scholarly journals Avascular Spaces of the Female Pelvis—Clinical Applications in Obstetrics and Gynecology

2020 ◽  
Vol 9 (5) ◽  
pp. 1460
Author(s):  
Stoyan Kostov ◽  
Stanislav Slavchev ◽  
Deyan Dzhenkov ◽  
Dimitar Mitev ◽  
Angel Yordanov

The term “spaces” refers to the areas delimited by at least two independent fasciae and filled with areolar connective tissue. However, there is discrepancy regarding the spaces and their limits between clinical anatomy and gynecologic surgery, as not every avascular space described in literature is delimited by at least two fasciae. Moreover, new spaces and surgical planes have been developed after the adoption of laparoscopy and nerve-sparing gynecological procedures. Avascular spaces are useful anatomical landmarks in retroperitoneal anatomic and pelvic surgery for both malignant and benign conditions. A noteworthy fact is that for various gynecological diseases, there are different approaches to the avascular spaces of the female pelvis. This is a significant difference, which is best demonstrated by dissection of these spaces for gynecological, urogynecological, and oncogynecological operations. Thorough knowledge regarding pelvic anatomy of these spaces is vital to minimize morbidity and mortality. In this article, we defined nine avascular female pelvic spaces—their boundaries, different approaches, attention during dissection, and applications in obstetrics and gynecology. We described the fourth space and separate the paravesical and pararectal space, as nerve-sparing gynecological procedures request a precise understanding of retroperitoneal spaces.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Matvey Ezhov ◽  
Maxim Gusarev ◽  
Maria Golitsyna ◽  
Julian M. Yates ◽  
Evgeny Kushnerev ◽  
...  

AbstractIn this study, a novel AI system based on deep learning methods was evaluated to determine its real-time performance of CBCT imaging diagnosis of anatomical landmarks, pathologies, clinical effectiveness, and safety when used by dentists in a clinical setting. The system consists of 5 modules: ROI-localization-module (segmentation of teeth and jaws), tooth-localization and numeration-module, periodontitis-module, caries-localization-module, and periapical-lesion-localization-module. These modules use CNN based on state-of-the-art architectures. In total, 1346 CBCT scans were used to train the modules. After annotation and model development, the AI system was tested for diagnostic capabilities of the Diagnocat AI system. 24 dentists participated in the clinical evaluation of the system. 30 CBCT scans were examined by two groups of dentists, where one group was aided by Diagnocat and the other was unaided. The results for the overall sensitivity and specificity for aided and unaided groups were calculated as an aggregate of all conditions. The sensitivity values for aided and unaided groups were 0.8537 and 0.7672 while specificity was 0.9672 and 0.9616 respectively. There was a statistically significant difference between the groups (p = 0.032). This study showed that the proposed AI system significantly improved the diagnostic capabilities of dentists.


2013 ◽  
Vol 27 (11) ◽  
pp. 4386-4394 ◽  
Author(s):  
Marcello Ceccaroni ◽  
Roberto Clarizia ◽  
Giovanni Roviglione ◽  
Giacomo Ruffo
Keyword(s):  

2020 ◽  
Author(s):  
Ruifang Liu ◽  
Fangxing Xu ◽  
Yujie Zhou ◽  
Tongku Liu

Abstract Background In recent years, the prevalence rate of ACS in Chinese young women has been increasing significantly, becoming the main cause of death in young female. This study aimed to investigate the characteristics and difference of risk factors in Chinese young women with ACS and to provide references for ACS prevention and treatment. Methods A 1:1 case-control study was conducted to evaluate risk factors of 415 young female patients with ACS (ACS group) who underwent PCI treatment and 415 young female cases without ACS (control group) who were hospitalized and confirmed by coronary angiography to exclude coronary heart disease from January 2010 to August 2016. The average age of the cases in the two groups was respectively (40.77±4.02) years-old and (40.57±4.01) years-old (P> 0.05). Results The risk factors in ACS group were overweight (64.10%), hypertension (49.88%), hyperlipidemia (35.66%), diabetes (23.37%), depression or anxiety disorder (16.62%), gynecological diseases (16.39%), Hyperuricemia (15.18%), family history of early onset coronary heart disease (14.94%), hyperhomocysteinemia (11.33%), hypothyroidism(14.96%), hypercholesterolemia (8.43%) and high c-reactive protein (7.47%), and were statistically significant difference (P<0.01) compared with that of control group. The average number of risk factors per case in ACS group was significantly more than that of control groups (P<0.01). There was a statistically significant difference in the number of combined risk factors of the overweight cases compared between two groups (P<0.01). Regression analysis showed that hyperlipidemia, hyperhomocysteinemia, overweight(obesity), high CRP, hypertension, hypothyroidism, gynecological diseases, depression or anxiety, cardiac insufficiency, hypercholesterolemia, diabetes, oral contraceptives, family history of early onset CHD, and autoimmune diseases were independent risk factors (P<0.01). The bivariate correlation analysis between CRP level and age was r= -0.158 (P<0.01). This result showed the younger ACS patient is the higher serum CRP. Conclusion The independent risk factors of ACS in young women are hyperlipidemia, hyperhomocysteinemia, overweight, high CRP, hypertension, hypothyroidism, gynecological diseases, depression or anxiety, cardiac insufficiency, hypercholesterolemia, diabetes, oral contraceptives, family history of early onset CHD, and autoimmune diseases. The co-existence of multiple risk factors is the main cause suffering from ACS in young women.


2017 ◽  
Vol 79 (02) ◽  
pp. 200-204 ◽  
Author(s):  
Iuliia Zhuravlova ◽  
Maryna Kornieieva ◽  
Erik Rodrigues

Objectives The defining of the normal parameters of spacious relations and symmetry of the ventricular system of the brain depending on the gender and age is currently one of the topical research problems of clinical anatomy. The present research aims to identify the correlation between the morphometric parameters of the fourth ventricle of the brain and the shape of the skull in middle aged people. Design This is a prospective cohort study. Setting This study was set at the Trinity School of Medicine. Participants A total of 118 normal computed tomography scans of the head of people aged from 21 to 86 years (mean age—48.6 years ± 17.57) were selected for the study. Main Outcome Measures The anteroposterior, transverse diameters, and height of the fourth ventricle were measured and compared in dolichocranial, mesocranial, and brachycranial individuals. Results The study has shown the presence of a statistically significant difference between morphometric parameters of the fourth ventricle of the brain in dolichocranial, mesocranial, and brachycranial individuals. Conclusion The morphometric parameters of the fourth ventricle of the brain, such as height, anteroposterior, and transverse diameters, depend on the individual anatomic variability of the skull shape and gender.


2020 ◽  
Vol 15 (5) ◽  
Author(s):  
Sarah Neu ◽  
Jennifer Locke ◽  
Mitchell Goldenberg ◽  
Sender Herschorn

Introduction: We sought to review outcomes of urethrovaginal fistula (UVF) repair, with or without concurrent fascial sling placement. Methods: All patients diagnosed with UVF at our center from 1988–2017 were included in this study. Patient charts were reviewed from a prospectively kept fistula database, and patient characteristics and surgical outcomes were described. Descriptive statistics were applied to compare complication rates between patients with or without fascial sling placement at the time of UVF repair. Results: A total of 41 cases of UVF were identified, all of which underwent surgical repair. Median age at diagnosis was 49 years (interquartile range [IQR] 35–62). All patients had undergone pelvic surgery. UVF etiology was secondary to stress urinary incontinence (SUI) surgery in 17 patients (41%) and urethral diverticulum repair in seven patients (17%). The most common presenting symptom was continuous incontinence in 19 patients (46%). Nineteen patients had a fascial sling placed at the time of surgery (46%), with no significant difference in complication rates (26% vs. 23%, p=0.79). Two patients had Clavien-Dindo grade I complications (5%) and one had a grade III complication (2%). Four patients had long-term complications (10%), including urinary retention, chronic pain, and urethral stricture. Two patients had UVF recurrence (5%). Median followup after surgery was 21 months (IQR 4–72). Conclusions: UVF should be suspected in patients with continuous incontinence following a surgical procedure. Most UVF surgical repairs are successful and can be done with concurrent placement of a fascial sling.


Author(s):  
M Uddin ◽  
ME Hossain ◽  
MS Islam ◽  
MB Hossain ◽  
KN Islam

This study was planned to investigate some aspects of the morphometric characteristics of the occipital bone and foramen megnum in domestic cat (Felis catus). Twenty adult domestic cat including 10 males and 10 female cats were euthanized using diazepam (@ 20 mg/kg) and their skulls were macerated to give morphometric parameters. Student t-test with level of significance set at 5% (p < 0.05) was used to analyze the obtained values. The height of occipital triangle, width of occipital condyles, width of jugular process were significantly larger in male than female. The mean height and width of the foramen magnum were 1.32 ± 0.09 cm and 1.35 ± 0.08 cm, respectively, while the foramen index was below 100 at 90.72 ± 4.93. Parameters for the foramen magnum index showed significant difference between both sexes at p < 0.05. The foramen magnum showed shape variations and there were multiple hypoglossal foramina in over 80% of the cats. The morphometric values of the occipital bone and foramen magnum and clinical anatomy of the occipital region of the domestic cats provide an important baseline for further research in this field and could help in the better diagnosis, classification, and treatment of diseases related to this region and serve as a future reference defining an anatomic range.International Journal of Natural Sciences (2013), 3(1-4) 18-21


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