scholarly journals Incidence of basilar invagination in patients with tonsillar herniation ? a case control craniometrical study

2014 ◽  
Vol 72 (9) ◽  
pp. 706-711 ◽  
Author(s):  
Andrei F Joaquim ◽  
Yvens Barbosa Fernandes ◽  
Roger N Mathias ◽  
Ulysses C Batista ◽  
Enrico Ghizoni ◽  
...  
Keyword(s):  
Case Control Study ◽  
Odontoid Process ◽  
Basilar Invagination ◽  
Case Control ◽  
Tonsillar Herniation ◽  
Retrospective Case ◽  
Number Of Patients ◽  
The Mean ◽  
Control Study ◽  
Surgical Group

A retrospective case-control study based on craniometrical evaluation was performed to evaluate the incidence of basilar invagination (BI). Patients with symptomatic tonsillar herniation treated surgically had craniometrical parameters evaluated based on CT scan reconstructions before surgery. BI was diagnosed when the tip of the odontoid trespassed the Chamberlain’s line in three different thresholds found in the literature: 2, 5 or 6.6 mm. In the surgical group (SU), the mean distance of the tip of the odontoid process above the Chamberlain’s line was 12 mm versus 1.2 mm in the control (CO) group (p<0.0001). The number of patients with BI according to the threshold used (2, 5 or 6.6 mm) in the SU group was respectively 19 (95%), 16 (80%) and 15 (75%) and in the CO group it was 15 (37%), 4 (10%) and 2 (5%).

scholarly journals High Prevalence of Hypocalcemia in Non-severe COVID-19 Patients: A Retrospective Case-Control Study

2021 ◽  
Vol 7 ◽  
Author(s):  
Rimesh Pal ◽  
Sant Ram ◽  
Deepy Zohmangaihi ◽  
Indranil Biswas ◽  
Vikas Suri ◽  
...  
Keyword(s):  
Serum Calcium ◽  
Case Control Study ◽  
Healthy Adult ◽  
Tertiary Care ◽  
Case Control ◽  
Retrospective Case ◽  
Hydroxyvitamin D ◽  
Number Of Patients ◽  
25 Hydroxyvitamin D ◽  
Control Study

Purpose: To compare serum total calcium and phosphate levels in patients with non-severe COVID-19 with age, sex, and serum 25-hydroxyvitamin D level matched healthy adult cohort.Methods: In this retrospective case-control study, medical records of patients (≥18 years) diagnosed as non-severe COVID-19 admitted at and discharged from our tertiary care institution during the period from April 10, 2020 and June 20, 2020 were retrieved. Baseline investigations, notably, serum calcium, phosphate, albumin, magnesium, 25-hydroxyvitamin D, and C-reactive protein (CRP), were performed at admission before any form of calcium or vitamin D supplementation were considered. The biochemical parameters were compared with age, sex, and 25-hydroxyvitamin D matched healthy adult controls (1:1 ratio) derived from the Chandigarh Urban Bone Epidemiological Study (CUBES).Results: After exclusion, 72 patients with non-severe COVID-19 (63 mild and 9 moderate disease) and an equal number of healthy controls were included in the final analysis. Age, sex, serum 25-hydroxyvitamin D, and albumin levels were matched between the 2 groups. Hypovitaminosis D and hypocalcemia were seen in 97 and 67% of the patients, respectively. The patients had lower serum calcium (P value &lt;0.001) and phosphate (P = 0.007) compared with the controls. There was no statistically significant correlation between serum calcium and CRP.Conclusions: Hypocalcemia is highly prevalent even in COVID-19 patients with non-severe disease probably implying that hypocalcemia is intrinsic to the disease. Prospective studies with larger number of patients are required to prove this hypothesis and unravel the underlying pathophysiological mechanisms.

Synchronous microsurgical anastomosis in complex replantation surgery

2018 ◽  
Vol 43 (10) ◽  
pp. 1044-1049 ◽  
Author(s):  
Szu-Han Wang ◽  
Chung-Chen Hsu ◽  
Chieh-Han John Tzou ◽  
Ching-Hsuan Hu
Keyword(s):  
Case Control Study ◽  
Operation Time ◽  
Case Control ◽  
The Other ◽  
Retrospective Case ◽  
Level Of Evidence ◽  
Microsurgical Technique ◽  
Total Operation Time ◽  
The Mean ◽  
Control Study

We conducted a retrospective case control study of digital replantations in 16 patients from September 2015 to January 2017. Half of the patients were treated by a synchronous microsurgical technique and the other half underwent conventional micro-anastomoses. The total time for anastomoses, total operation time and survival of digits were the major endpoints in this study. The number of digits replanted and the anastomosis method had significant effects on total anastomosis time. The mean anastomosis time for each digit was 46 min and 70 min in the synchronous and conventional groups, respectively, a 34% reduction in anastomosis time in the synchronous group when compared with the conventional group. Patency rates were 87% (13/15) of all the digits replanted in each group. Level of evidence: IV

Assessment of Craniofacial Morphology in Mouth Breathing Children. A retrospective case-control study

2019 ◽  
Vol 70 (10) ◽  
pp. 3649-3653
Author(s):  
David Angelescu ◽  
Teodora Angelescu ◽  
Meda Romana Simu ◽  
Alexandrina Muntean ◽  
Anca Stefania Mesaros ◽  
...  
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Craniofacial Morphology ◽  
Respiratory Pattern ◽  
Control Group ◽  
Upper Lip ◽  
Retrospective Case ◽  
Oral Breathing ◽  
Facial Height ◽  
Control Study

The aim of this retrospective case-control study is to determine a possible correlation between breathing mode and craniofacial morphology. The study was carried out in the Department of Pedodontics,Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania. The sample comprised 80 patients, age between 6 and 13 years, which were divided in two groups based on respiratory pattern: control group composed of 38 nasal breathing children and case group composed of 42 oral breathing children. Three quantitative craniofacial parameters were measured from the frontal and lateral photos: facial index, lower facial height ratio and upper lip ratio. The statistical analysis showed a significant higher facial index (p=0.006*) and an increase lower facial height (p=0.033*) for the oral breathers group. No differences in facial morphology were found between genders and age groups, when comparing the data between the same type of respiratory pattern children. Spearman�s rho Correlation show a significant positive correlation (p=0.002*) between facial index and lower facial height and a significant negative correlation between facial index and upper lip (p=0,005*). Long faces children are more likely to develop oral breathing in certain conditions, which subsequently have a negative effect on increasing the lower facial height by altering the postural behavior of mandible and tongue.

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