scholarly journals Nasal Floor Slanting and Its Association With Nasofacial Structures

2021 ◽  
Vol 64 (10) ◽  
pp. 726-733
Author(s):  
Marn Joon Park ◽  
Yeonjoo Choi ◽  
Chol Ho Shin ◽  
Yong Ju Jang
Keyword(s):  
Standard Deviation ◽  
Maxillary Sinus ◽  
Radiographic Finding ◽  
Facial Asymmetry ◽  
Nasal Symptoms ◽  
Nasal Floor ◽  
The Face ◽  
The Mean ◽  
Skeletal Asymmetry ◽  
Sinonasal Symptoms

Background and Objectives Nasal floor slanting (NFS) is an incidental radiographic finding of asymmetry in the nasal floor level. Despite its frequent appearance, however, NFS has never been properly defined, neither has its correlation with the asymmetry of the adjacent nasofacial structures been investigated. We evaluated the incidence of NFS in patients with sinonasal symptoms and its correlation with the nasofacial skeletal structures.Subjects and Method We investigated patients who underwent preoperative ostiomeatal unit (OMU) CT and facial photography. We measured the incidence of NFS and its angle in the 265 patient images, and analyzed the relationships between NFS and radiologically detected asymmetries of the adjacent nasofacial skeleton and facial asymmetry visible on a photograph.Results NFS was found in 51% of the study subjects (136/265), who were defined as the slanted group. The mean NFS angle in the slanted group was 7.7° with a standard deviation (SD) of 4.4°, ranging from 2.4° to 22.4°. The slanted group showed a higher incidence of nasal septal deviation, asymmetry in the orbit and maxillary sinus, and a larger maxillary cavity (p<0.001) than the non-slanted group. Asymmetry of the face showed a higher incidence in the slanted group (p<0.01), whereas an external nasal deviation did not show an association with NFS.Conclusion NFS is evident in about 50% of patients complaining of nasal symptoms and is associated with nasofacial skeletal asymmetry as well as asymmetry in the face.

scholarly journals Evaluating Endoscopic Ipsilateral Endonasal Corridor Approaches to the Anterolateral Wall of the Maxillary Sinus: A Computerized Tomography Study

2021 ◽  
Author(s):  
Navarat Vatcharayothin ◽  
Pornthep Kasemsiri ◽  
Sanguansak Thanaviratananich ◽  
Cattleya Thongrong
Keyword(s):  
Confidence Interval ◽  
Maxillary Sinus ◽  
Inferior Turbinate ◽  
Radial Access ◽  
Sinus Wall ◽  
Nasal Floor ◽  
Significant Difference ◽  
Anterolateral Wall ◽  
The Mean ◽  
Maxillary Sinuses

Abstract Introduction The endoscopic access to lesions in the anterolateral wall of the maxillary sinus is a challenging issue; therefore, the evaluation of access should be performed. Objective To assess the accessibility of three endoscopic ipsilateral endonasal corridors. Methods Three corridors were created in each of the 30 maxillary sinuses from 19 head cadavers. Accessing the anterolateral wall of the maxillary sinus was documented with a straight stereotactic navigator probe at the level of the nasal floor and of the axilla of the inferior turbinate. Results At level of the nasal floor, the prelacrimal approach, the modified endoscopic Denker approach, and the endoscopic Denker approach allowed mean radial access to the anterolateral maxillary sinus wall of 42.6 ± 7.3 (95% confidence interval [CI]: 39.9–45.3), 56.0 ± 6.1 (95%CI: 53.7–58.3), and 60.1 ± 6.2 (95%CI: 57.8–62.4), respectively. Furthermore, these approaches provided more lateral access to the maxillary sinus at the level of the axilla of the inferior turbinate, with mean radial access of 45.8 ± 6.9 (95%CI: 43.3–48.4) for the prelacrimal approach, 59.8 ± 4.7 (95% CI:58.1–61.6) for the modified endoscopic Denker approach, and 63.6 ± 5.5 (95%CI: 61.6–65.7) for the endoscopic Denker approach. The mean radial access in each corridor, either at the level of the nasal floor or the axilla of the inferior turbinate, showed a statistically significant difference in all comparison approaches (p < 0.05). Conclusions The prelacrimal approach provided a narrow radial access, which allows access to anteromedial lesions of the maxillary sinus, whereas the modified endoscopic Denker and the endoscopic Denker approaches provided more lateral radial access and improved operational feasibility on far anterolateral maxillary sinus lesions.

Paroxysmal headache with extracephalic irradiation: Proposal for a new variant of epicrania fugax in a series of five patients

Cephalalgia ◽  
2020 ◽  
Vol 40 (9) ◽  
pp. 959-965 ◽  
Author(s):  
María Gutiérrez-Sánchez ◽  
David García-Azorín ◽  
Álvaro Gutiérrez-Viedma ◽  
Nuria González-García ◽  
Alejandro Horga ◽  
...  
Keyword(s):  
Standard Deviation ◽  
Age At Onset ◽  
Spontaneous Remission ◽  
Complete Response ◽  
Descriptive Study ◽  
Nummular Headache ◽  
New Variant ◽  
Epicrania Fugax ◽  
The Face ◽  
The Mean

Background Epicrania fugax consists of brief paroxysms of pain, which radiate in a line or in zigzag trajectory across the surface of the scalp or the face. Methods A prospective, descriptive study was performed in five patients presenting with an epicrania fugax-type pain with extracephalic irradiation. Results All patients were women, and the mean age at onset was 59.8 (standard deviation, 10.9). They had unilateral paroxysms of electrical pain starting at a particular point in the head (parietal, n = 3; vertex, n = 1; frontal, n = 1) and rapidly radiating downwards in a lineal trajectory to reach extracephalic regions (ipsilateral limbs, n = 2; shoulder, n = 2; low neck, n = 1) in 1–3 seconds. Pain intensity was moderate or severe. Three patients had nummular headache at the point where the paroxysms originated. One patient had spontaneous remission, and four patients achieved complete or almost complete response with therapy (onabotulinumtoxinA, n = 2; indomethacin, n = 1; amitriptyline, n = 1; lamotrigine, n = 1). Conclusion The spectrum of epicrania fugax may include paroxysms with extracephalic irradiation. The propagation of pain beyond the head and the face supports the involvement of central mechanisms in the pathophysiology of this entity.

The analysis of maxillary sinus aeration according to aging process; volume assessment by 3-dimensional reconstruction by high-resolutional CT scanning

2005 ◽  
Vol 132 (3) ◽  
pp. 429-434 ◽  
Author(s):  
Beom-Cho Jun ◽  
Sun-Wha Song ◽  
Chan-Soon Park ◽  
Dong-Hee Lee ◽  
Kwang-Jae Cho ◽  
...  
Keyword(s):  
Maxillary Sinus ◽  
Paranasal Sinus ◽  
Sinus Surgery ◽  
Age And Gender ◽  
3 Dimensional ◽  
Maxillary Sinus Volume ◽  
Nasal Floor ◽  
Significant Difference ◽  
The Mean ◽  
And Gender

OBJECTIVE: To evaluate change of the maxillary sinus volume according to patient age and gender by using a 3-dimensional (3-D) reconstruction of computed tomography images. STUDY DESIGN AND SETTING: One hundred seventy-three people (totaling 238 maxillary sinuses) who had undergone paranasal sinus CT scan between December 2000 and November 2003 and had no evidence of inflammation or hypoplasia in the CT finding and had no specific history of paranasal sinus surgery or maxillofacial trauma were retrospectively analyzed. The 3-D reconstruction images were obtained by using a surface-rendering technique (Vworks; CybeMed, Seoul, Korea) on a personal computer. The mean volume of maxillary sinus was evaluated according to patient chronologic age and gender. The ratio of the maximum horizontal and half-horizontal extension for the estimation of the morphological change of maxillary sinus and the degree of descent of the sinus below the nasal floor were evaluated in the 3-D image. RESULTS: The development of the maxillary sinus continued until the 3rd decade in males and until the 2nd decade in females. The mean maxillary sinus volume in early adults was 24,043 mm 3 (males) and 15,859.5 mm 3 (females). There was a significance difference in the sinus volume ( P < 0.05) according to gender, and there was a significant difference in the maxillary sinus volume according to age before it reached maximum. After its maximum growth period, however, there was no significant difference in the volume change of maxillary sinus and the descent below the nasal floor between two adjacent groups. CONCLUSIONS: The growth of the maxillary sinus continues until the 3rd decade in males and the 2nd decade in females. Therefore, a maxillary sinus operation affecting the bony structures before these ages might affect the development of the sinus and needs to be performed carefully

Case report of two patients with silent sinus syndrome

2021 ◽  
Vol 20 (3) ◽  
pp. 115-120
Author(s):  
G. P. Zakharova ◽  
◽  
N. I. Ivanov ◽  
Keyword(s):  
Surgical Treatment ◽  
Maxillary Sinus ◽  
Clinical Course ◽  
Facial Asymmetry ◽  
Primary Diagnosis ◽  
Lower Wall ◽  
Valve Mechanism ◽  
Silent Sinus Syndrome ◽  
Clinical Observations ◽  
The Face

SMS is a rare pathology of the paranasal sinuses, accompanied by such symptoms as pain in the eye area, enophthalmos and hypophthalmos on the side of the localization of the process, facial asymmetry caused by a decrease in the volume of the maxillary sinus due to its atelectasis in the presence of chronic inflammation in it. The disease, as a rule, proceeds under the primary diagnosis of chronic rhinosinusitis. The main pathogenetic link of the disease is generally accepted as the block of the anastomosis and the emergence of the valve mechanism of ventilation of the maxillary sinus. However, the immediate cause of the onset of atelectasis remains a subject of discussion to this day. The only effective surgical treatment is to restore ventilation of the maxillary sinus by expanding the anastomosis and eliminating the cause of its block. With a pronounced asymmetry of the face due to the lowering of the orbit, the plastic of the lower wall of the orbit is performed. The article discusses modern ideas about the silent sinus syndrome, its etiology, pathogenesis, clinical course and treatment tactics for patients, presents two clinical observations of patients with silent sinus syndrome and describes the options for surgical treatment and its results.

scholarly journals Landmarks for Rapid Localization of the Sphenopalatine Foramen: A Radiographic Morphometric Analysis

2017 ◽  
Vol 8 (2) ◽  
pp. ar.2017.8.0196 ◽  
Author(s):  
Anne K. Maxwell ◽  
Henry P. Barham ◽  
Anne E. Getz ◽  
Todd T. Kingdom ◽  
Vijay R. Ramakrishnan
Keyword(s):  
Computed Tomography ◽  
Statistical Analysis ◽  
Standard Deviation ◽  
Morphometric Analysis ◽  
Middle Turbinate ◽  
Artery Ligation ◽  
Sphenopalatine Artery ◽  
Sphenopalatine Foramen ◽  
Nasal Floor ◽  
The Mean

Background Transnasal endoscopic sphenopalatine artery ligation is becoming the procedure of choice for surgical management of intractable posterior epistaxis. Landmarks for localization of the sphenopalatine foramen can assist in rapid surgical exposure of the sphenopalatine artery. Objective This study examined distances from easily identified endoscopic surgical landmarks to the sphenopalatine foramen. Methods By using computed tomography of the sinus to study radiologic anatomy in 50 adults, distances were measured between five simple endoscopic landmarks and the sphenopalatine foramen. The two-tailed t-test was used for statistical analysis. Results Right- and left-sided measurements were similar. The mean (standard deviation [SD]) anteroposterior distances to the sphenopalatine foramen were the following: from the maxillary line (36.7 ± 5.5 mm), anterior head of the middle turbinate (33.8 ± 6.7 mm), basal lamella (11.8 ± 1.9 mm), and choanal arch (–9.2 ± 1.4 mm). The mean (SD) distance in the vertical dimension from the nasal floor was 26.6 ± 2.6 mm. Female patients had statistically shorter distances to the sphenopalatine foramen from the maxillary line, anterior head of the middle turbinate, choanal arch, and nasal floor. Conclusion Reliable endoscopic landmarks exist in relation to consistent anatomic structures and can be used to help quickly estimate the location of the sphenopalatine foramen at the onset of the procedure.

scholarly journals Silent sinus syndrome - Case presentation

2016 ◽  
Vol 6 (21) ◽  
pp. 45-48
Author(s):  
Veronica Trombitas ◽  
Alina Nagy ◽  
Diana Vlad ◽  
Aranka Ilea ◽  
Silviu Albu
Keyword(s):  
Case Report ◽  
Ct Scan ◽  
Maxillary Sinus ◽  
Facial Asymmetry ◽  
Orbital Floor ◽  
White Female ◽  
Correct Treatment ◽  
Case Presentation ◽  
Silent Sinus Syndrome ◽  
Nasal Symptoms

Abstract BACKGROUND. Silent sinus syndrome (SSS) is known as a relatively new pathology with clinical characterizations, represented by the facial asymmetry determined by progressive enophthalmos and hypoglobus and the absence of nasal symptoms. The theory that sustained this pathology is based on the negative maxillary pressure and the chronic evolution of symptomatology. CASE REPORT. A 49-year-old white female presented in our clinic for facial asymmetry, right facial pressure, right depression of the orbital floor and hypoglobus, without diplopia. The CT scan showed an opaque right maxillary sinus with the depression of the orbital floor. CONCLUSION. The pathogenesis, clinical and imagistic features are the most important in the SSS for diagnosis and correct treatment.

At Least One Standard Deviation Above the Mean

1969 ◽  
Vol 14 (9) ◽  
pp. 470-471
Author(s):  
M. DAVID MERRILL
Keyword(s):  
Standard Deviation ◽  
The Mean

The Estimation of Blood Platelet Survival

1972 ◽  
Vol 28 (03) ◽  
pp. 447-456 ◽  
Author(s):  
E. A Murphy ◽  
M. E Francis ◽  
J. F Mustard
Keyword(s):  
Standard Deviation ◽  
Least Squares ◽  
Experimental Error ◽  
Blood Platelet ◽  
Least Squares Estimation ◽  
Systematic Relationship ◽  
Platelet Survival ◽  
The Mean ◽  
Normally Distributed

SummaryThe characteristics of experimental error in measurement of platelet radioactivity have been explored by blind replicate determinations on specimens taken on several days on each of three Walker hounds.Analysis suggests that it is not unreasonable to suppose that error for each sample is normally distributed ; and while there is evidence that the variance is heterogeneous, no systematic relationship has been discovered between the mean and the standard deviation of the determinations on individual samples. Thus, since it would be impracticable for investigators to do replicate determinations as a routine, no improvement over simple unweighted least squares estimation on untransformed data suggests itself.

PENGARUH PENDIDIKAN KESEHATAN REPRODUKSI PADA PEER GROUP (TEMAN SEBAYA) TERHADAP PENGETAHUAN DAN PERSEPSI REMAJA TENTANG PENDEWASAAN USIA PERKAWINAN DI SMA NEGERI 1 KECAMATAN NAMORAMBE KAB. DELI SERDANG 2018

2020 ◽  
Vol 1 (2) ◽  
pp. 56-66
Author(s):  
Irma Linda
Keyword(s):  
Standard Deviation ◽  
Health Education ◽  
Reproductive Health ◽  
Peer Group ◽  
Peer Groups ◽  
A Value ◽  
Significant Difference ◽  
Reproductive Health Education ◽  
The Mean ◽  
Adolescent Perceptions

Background: Early marriages are at high risk of marital failure, poor family quality, young pregnancies at risk of maternal death, and the risk of being mentally ill to foster marriage and be responsible parents. Objective: To determine the effect of reproductive health education on peer groups (peers) on the knowledge and perceptions of adolescents about marriage age maturity. Method: This research uses the Quasi experimental method with One group pre and post test design, conducted from May to September 2018. The statistical analysis used in this study is a paired T test with a confidence level of 95% (α = 0, 05). Results: There is an average difference in the mean value of adolescent knowledge between the first and second measurements is 0.50 with a standard deviation of 1.922. The mean difference in mean scores of adolescent perceptions between the first and second measurements was 4.42 with a standard deviation of 9.611. Conclusion: There is a significant difference between adolescent knowledge on the pretest and posttest measurements with a value of P = 0.002, and there is a significant difference between adolescent perceptions on the pretest and posttest measurements with a value of p = 0.001. Increasing the number of facilities and facilities related to reproductive health education by peer groups (peers) in adolescents is carried out on an ongoing basis at school, in collaboration with local health workers as prevention of risky pregnancy.

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