ABSTRACT
Dental age estimation plays a key role in therapeutic, medicolegal, forensic, and anthropological applications. The purpose of this study is to evaluate the research progress on dental age estimation using bibliometric analysis. Data were gathered from Scopus, Web of Science and PubMed. Keyword co-occurrence analysis, collaboration network analysis, and descriptive analysis of bibliographic data were all completed using VOS viewer and Biblioshiny software. There has been an ongoing but gradual rise in research regarding dental age estimation, with notable increase since 2014. The country with the most publications published (205) was India. The year of 2018 (TP = 92) and 2021 (TP = 100) saw a rapid spike in publications and citations, respectively. The Shanghai Jiao Tong University School of Medicine, which has 153 citations, was the most productive institution. Forensic Science International was the journal with the greatest number of publications (73). Author Cameriere had the maximum number of publications (30). The increase in publications associated to collaboration across numerous authors, nations, and institutes serves as evidence of the significant improvement in dental age estimation. This citation analysis allows for the identification of the most relevant and pertinent research fields while providing a view on the development of research in the field of dental age estimation.
Subject(s)
Academies and Institutes , Bibliometrics , Humans , China , Anthropology , External FixatorsABSTRACT
An assist device was developed which is able to support the pumping function of the heart by direct application of pressure to the left ventricle. The goal of this animal study in pigs was to determine whether it is possible to maintain sufficient blood circulation with the aid of the new system when the heart is fibrillating or its capacity has been greatly reduced. Following sternotomy complete invasive monitoring was installed. The intrathoracic implantable mechanical multi-chamber pump system (IMPS) was placed around the left ventricle. By means of the beta-blocker carazolol, systolic left-ventricular pressure (LVPsys), cardiac output, heart rate, and left-ventricular dp/dtmax (LVdp/dtmax) were gradually lowered and the pump system was tested intermittently. Then the heart was fibrillated and the system was tested again. When cardiac output, LVdp/dtmax, and systolic blood pressure were reduced by approximately 50% IMPS was able to increase LVPsys by 83% (IMPS) on: 96 +/- 9 mmHg vs. IMPS off: 63 +/- 6 mmHg), and the blood pressure in the carotid artery by 86% (IMPS on: 95/40 +/-15 mmHg vs. IMPS off: 69/38 +/- 9 mmHg). The mean cardiac output was 64% (IMPS on: 4.3 L/min vs. IMPS off: 3.9L/min); in most cases a great variability could be observed depending on the preload, the heart rate, and the mode of pressure application. When the heart was fibrillating, IMPS was able to maintain adequate circulatory conditions with LVPsys = 88%, blood pressure in the carotid artery = 85%, and LVdp/dtmax = 57% of the control values measured before fibrillation and beta-blockade. The system presented here is able to support the impaired left ventricle and to replace its pumping function. The advantages of the system are its efficiency and the lack of contact of the circulating blood with foreign surfaces. Whether the system is suited for bridging and recovery support shall be clarified in further studies.