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排序方式: 共有228条查询结果,搜索用时 15 毫秒
1.
Veis A Parissis N Tsirlis A Papadeli C Marinis G Zogakis A 《The International journal of periodontics & restorative dentistry》2010,30(6):609-617
The purpose of this study was to evaluate crestal bone loss around 282 two-piece implants with straight (n = 193) and platform-switched (n = 89) abutment connections after placement at various crestal levels. Implants were assigned into two groups according to straight and platform-switched abutment connections. Each group was further subdivided into three groups depending on the location (supracrestal, crestal, or subcrestal) of the implant cervical platform. Linear measurements of bone resorption were made from the implant's platform to the first point of bone-to-implant contact at the time of implant placement and 2 years postrestoration. Data were statistically analyzed. Statistically significant differences were found between subgroups in both straight and platform-switched categories. The only nonstatistically significant difference (P = .341) arose when comparing the supra- and subcrestal locations in the straight abutment connection group. The platform-switched group exhibited significantly less bone loss (P = .046) only in subcrestal locations. The platform-switched concept was not beneficial during the overall comparison, but it was for the subcrestal location of the abutment connection. Crestal placement of the implant-abutment connection resulted in higher marginal bone resorption in both straight and platform-switched abutments. 相似文献
2.
Booth KL Mercer-Smith G McConkey C Parissis H 《Interactive Cardiovascular and Thoracic Surgery》2012,15(3):531-533
Pulmonary artery haemorrhage is thankfully a very rare complication following pulmonary artery catheter insertion. It carries a significant mortality of 50%, and most cases are managed conservatively or with embolization therapy. We present an occult case, in which a patient presented with haemodynamic compromise without haemoptysis or significant haemothorax, who required surgical intervention. We discuss surgical treatment management options and the need for a high index of clinical suspicion to prevent mortality from this condition. 相似文献
3.
Al-Alao BS Parissis H McGovern E Tolan M Young VK 《General thoracic and cardiovascular surgery》2012,60(4):217-224
Purpose
We looked at the complications and hospital resources of an elderly population undergoing first-time isolated coronary artery bypass graft surgery (CABG) in comparison to a younger counterpart for a propensity matched cohort. 相似文献4.
Transcranial Doppler versus transthoracic echocardiography for the detection of patent foramen ovale in patients with cryptogenic cerebral ischemia: A systematic review and diagnostic test accuracy meta‐analysis 下载免费PDF全文
Aristeidis H. Katsanos MD Theodora Psaltopoulou MD Theodoros N. Sergentanis MD Alexandra Frogoudaki MD Agathi‐Rosa Vrettou MD Ignatios Ikonomidis MD Ioannis Paraskevaidis MD John Parissis MD Chrysa Bogiatzi MD Christina Zompola MD John Ellul MD Nikolaos Triantafyllou MD Konstantinos Voumvourakis MD Athanassios P. Kyritsis MD Sotirios Giannopoulos MD Anne W. Alexandrov PhD Andrei V. Alexandrov MD Georgios Tsivgoulis MD 《Annals of neurology》2016,79(4):625-635
Schwannomatosis is a genetic disorder characterized by the occurrence of multiple peripheral schwannomas. Segmental schwannomatosis is diagnosed when schwannomas are restricted to 1 extremity and is thought to be caused by genetic mosaicism. We studied 5 patients with segmental schwannomatosis through microstructural magnetic resonance neurography and mutation analysis of NF2, SMARCB1, and LZTR1. In 4 of 5 patients, subtle fascicular nerve lesions were detected in clinically unaffected extremities. Two patients exhibited LZTR1 germline mutations. This appears contrary to a simple concept of genetic mosaicism and suggests more complex and heterogeneous mechanisms underlying the phenotype of segmental schwannomatosis than previously thought. Ann Neurol 2016;80:625–628 相似文献
5.
Nowadays, outcome measures get published following risk adjustment; mortality rates are adjusted for risks to give a picture of the performance of a surgeon or a unit. The risk factors associated with in-hospital death are likely to reflect concurrent disease-specific variables. Factors associated with increased resource utilisation (as measured by length of stay) reflect serious co-morbid illness. The various models are effective at predicting population behaviour, but not necessarily suited for predicting individual outcomes. Further work needs to be done both to explain the differences in risk factors seen between the various risk stratification models and to determine which models are best suited in clinical practice. This document reviews the current evidence and risk stratification tools currently employed in cardiac surgery practice. 相似文献
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Ovidiu Chioncel John Parissis Alexandre Mebazaa Holger Thiele Steffen Desch Johann Bauersachs Veli‐Pekka Harjola Elena‐Laura Antohi Mattia Arrigo Tuvia B. Gal Jelena Celutkiene Sean P. Collins Daniel DeBacker Vlad A. Iliescu Ewa Jankowska Tiny Jaarsma Kalliopi Keramida Mitja Lainscak Lars H Lund Alexander R. Lyon Josep Masip Marco Metra Oscar Miro Andrea Mortara Christian Mueller Wilfried Mullens Maria Nikolaou Massimo Piepoli Susana Price Giuseppe Rosano Antoine Vieillard‐Baron Jean M. Weinstein Stefan D. Anker Gerasimos Filippatos Frank Ruschitzka Andrew J.S. Coats Petar Seferovic 《European journal of heart failure》2020,22(8):1315-1341
Cardiogenic shock (CS) is a complex multifactorial clinical syndrome with extremely high mortality, developing as a continuum, and progressing from the initial insult (underlying cause) to the subsequent occurrence of organ failure and death. There is a large spectrum of CS presentations resulting from the interaction between an acute cardiac insult and a patient's underlying cardiac and overall medical condition. Phenotyping patients with CS may have clinical impact on management because classification would support initiation of appropriate therapies. CS management should consider appropriate organization of the health care services, and therapies must be given to the appropriately selected patients, in a timely manner, whilst avoiding iatrogenic harm. Although several consensus‐driven algorithms have been proposed, CS management remains challenging and substantial investments in research and development have not yielded proof of efficacy and safety for most of the therapies tested, and outcome in this condition remains poor. Future studies should consider the identification of the new pathophysiological targets, and high‐quality translational research should facilitate incorporation of more targeted interventions in clinical research protocols, aimed to improve individual patient outcomes. Designing outcome clinical trials in CS remains particularly challenging in this critical and very costly scenario in cardiology, but information from these trials is imperiously needed to better inform the guidelines and clinical practice. The goal of this review is to summarize the current knowledge concerning the definition, epidemiology, underlying causes, pathophysiology and management of CS based on important lessons from clinical trials and registries, with a focus on improving in‐hospital management. 相似文献
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9.
Filippos K. Triposkiadis Javed Butler Georgios Karayannis Randall C. Starling Gerasimos Filippatos Kathy Wolski John Parissis Charalabos Parisis Dimitrios Rovithis Konstantinos Koutrakis John Skoularigis Christos-Konstantinos Antoniou Christina Chrysohoou Christos Pitsavos Christodoulos Stefanadis John Nastas Themistoklis Tsaknakis Lilian Mantziari Georgios Giannakoulas Haralambos Karvounis Andreas P. Kalogeropoulos Gregory Giamouzis 《International journal of cardiology》2014