Long-Term Retrospective Observational Cohort Study on the Survival Rate of Stepped-Screw Titanium Implants Followed up to 20 Years

2019 ◽  
Vol 34 (4) ◽  
pp. 999-1006
Author(s):  
Francesco Lini ◽  
Pier Poli ◽  
Mario Beretta ◽  
Ivan Cortinovis ◽  
Carlo Maiorana
Keyword(s):  
Cohort Study ◽  
Survival Rate ◽  
Observational Cohort Study ◽  
Titanium Implants ◽  
Observational Cohort ◽  
Retrospective Observational Cohort Study

scholarly journals Disorders of placental villous maturation in fetal death

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sunil Jaiman ◽  
Roberto Romero ◽  
Percy Pacora ◽  
Eunjung Jung ◽  
Gaurav Bhatti ◽  
...  
Keyword(s):  
Cohort Study ◽  
Fetal Death ◽  
Prevalence Ratio ◽  
Normal Pregnancy ◽  
Observational Cohort Study ◽  
Maturation Arrest ◽  
Inflammatory Lesions ◽  
Multiple Gestations ◽  
Observational Cohort ◽  
Retrospective Observational Cohort Study

Abstract Objective The aims of this study were to ascertain the frequency of disorders of villous maturation in fetal death and to also delineate other placental histopathologic lesions in fetal death. Methods This was a retrospective observational cohort study of fetal deaths occurring among women between January 2004 and January 2016 at Hutzel Women’s Hospital, Detroit, MI, USA. Cases comprised fetuses with death beyond 20 weeks’ gestation. Fetal deaths with congenital anomalies and multiple gestations were excluded. Controls included pregnant women without medical/obstetrical complications and delivered singleton, term (37–42 weeks) neonate with 5-min Apgar score ≥7 and birthweight between the 10th and 90th percentiles. Results Ninety-two percent (132/143) of placentas with fetal death showed placental histologic lesions. Fetal deaths were associated with (1) higher frequency of disorders of villous maturation [44.0% (64/143) vs. 1.0% (4/405), P < 0.0001, prevalence ratio, 44.6; delayed villous maturation, 22% (31/143); accelerated villous maturation, 20% (28/143); and maturation arrest, 4% (5/143)]; (2) higher frequency of maternal vascular malperfusion lesions [75.5% (108/143) vs. 35.7% (337/944), P < 0.0001, prevalence ratio, 2.1] and fetal vascular malperfusion lesions [88.1% (126/143) vs. 19.7% (186/944), P < 0.0001, prevalence ratio, 4.5]; (3) higher frequency of placental histologic patterns suggestive of hypoxia [59.0% (85/143) vs. 9.3% (82/942), P < 0.0001, prevalence ratio, 6.8]; and (4) higher frequency of chronic inflammatory lesions [53.1% (76/143) vs. 29.9% (282/944), P < 0.001, prevalence ratio 1.8]. Conclusion This study demonstrates that placentas of womem with fetal death were 44 times more likely to present disorders of villous maturation compared to placentas of those with normal pregnancy. This suggests that the burden of placental disorders of villous maturation lesions is substantial.

scholarly journals Perioperative instrumental swallowing evaluation in adult airway reconstruction: a retrospective observational cohort study

2021 ◽  
Author(s):  
Matthew Haywood ◽  
Lindsay Lovell ◽  
Justin Roe ◽  
Gemma Clunie ◽  
Guri Sandhu ◽  
...  
Keyword(s):  
Cohort Study ◽  
Observational Cohort Study ◽  
Airway Reconstruction ◽  
Swallowing Evaluation ◽  
Observational Cohort ◽  
Retrospective Observational Cohort Study
Sign in / Sign up

Export Citation Format

Share Document