Abstract:
:Risk prediction models in cardiac surgery tend to lose their predictive performance over time. This statistical primer aims to provide an overview of updating methods with their strengths and weaknesses. This is important, as model updating may be an efficient and good alternative to the de novo development of risk models. The discussed methods are intercept recalibration, logistic recalibration, model revision, closed test procedure and Bayesian modelling. It is recommended to report an updated model according to the transparent reporting of a multivariable prediction model for individual prognosis or diagnosis (TRIPOD) statement and to include calibration and discrimination plots of the original and updated models to assess the model performance. An example is provided for updating the EuroSCORE II model in a national cohort from the Netherlands. Logistic recalibration results in a significant improvement of model performance, without the risk of overfitting. The example illustrates that more data allow for more extensive updating methods.
journal_name
Interact Cardiovasc Thorac Surgjournal_title
Interactive cardiovascular and thoracic surgeryauthors
Siregar S,Nieboer D,Versteegh MIM,Steyerberg EW,Takkenberg JJMdoi
10.1093/icvts/ivy338subject
Has Abstractpub_date
2019-03-01 00:00:00pages
333-338issue
3eissn
1569-9293issn
1569-9285pii
5273299journal_volume
28pub_type
杂志文章,评审abstract:OBJECTIVES:Recent evidence shows that permissive anaemia strategies are safe in different surgical settings. However, effects of variations in haemoglobin (Hb) levels could have a negative impact in high-risk patients. We investigated the combined effect of postoperative Hb concentration and cardiac risk status on majo...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivz199
更新日期:2019-12-01 00:00:00
abstract::The objective of this study was to identify and evaluate predictors of postoperative atrial fibrillation (POAF) in a large coronary artery bypass grafting (CABG) cohort. This was a single centre study of 7115 consecutive patients with preoperative sinus rhythm who underwent isolated CABG between January 1996 and Decem...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivr162
更新日期:2012-05-01 00:00:00
abstract::A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was whether a conservative fluid management strategy in the perioperative management of lung resection patients is associated with a reduced incidence of postoperative acute lung injury (PALI) and/or acute ...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章,评审
doi:10.1093/icvts/ivs175
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVES:Mechanical trauma occurring during pulmonary resection through both video-assisted thoracic surgery (VATS) or thoracotomy causes profound alterations in cytokines and the cellular network. The aim of this study was to analyse biological changes occurring in both the microenvironment (wound site) and macroenv...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivy231
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVES:We aimed to assess the results of various tailored management strategies for adults with coarctation in our centre. METHODS:We reviewed all adults patients treated for aortic caorctation between January 2000 and December 2015 in our institution. The primary end point was a composite of death, perioperative ...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivx039
更新日期:2017-09-01 00:00:00
abstract::A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was whether changing operative technique based on epiaortic ultrasound reduces the incidence of intra-operative stroke during cardiac surgery? Altogether 179 papers were found using the reported search, of w...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1016/S1569-9293(03)00220-2
更新日期:2004-03-01 00:00:00
abstract::Various surgical approaches have been proposed for complex (re-) coarctation and aortic arch hypoplasia (AAH). We report seven patients (mean age 19.6+/-9.5 years) with complex coarctation or re-coarctation and AAH successfully treated by extra-anatomic ascending-to-descending aortic bypass (ADB) via sternotomy betwee...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1016/S1569-9293(02)00122-6
更新日期:2003-06-01 00:00:00
abstract::Indications for transcatheter valve implantation have been extended to treat native valve aortic regurgitation in case of disproportionate risk for open surgery. Transcatheter aortic valves are also an attractive alternative in patients who refuse blood transfusions. We report the successful off-label implantation of ...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivw180
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVE:To conduct a meta-analysis of available comparative studies evaluating hybrid arch repair versus open surgical repair of aortic arch aneurysm. METHODS:A literature search was performed using PubMed, Embase and Web of Science to identify any studies comparing the results of hybrid arch repair with open surgic...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章,meta分析,评审
doi:10.1093/icvts/ivw305
更新日期:2017-01-01 00:00:00
abstract::The use of temporary epicardial pacing wires during cardiac surgery is a routine procedure and has been associated with low morbidity. We describe a rare case of right paracardiac mass due to organized pericardial hematoma with right atrial compression around the epicardial pacing wires left in-situ, presenting three ...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2010.264853
更新日期:2011-07-01 00:00:00
abstract::This case report describes the repair of an aortoesophageal fistula caused by a previously placed aortic arch graft. A 62-year-old man underwent total aortic arch graft replacement one year ago. He was readmitted with hematemesis and a high fever. Examination by endoscopy revealed a perforation and two swollen lesions...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2010.257501
更新日期:2011-04-01 00:00:00
abstract::A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was whether pregabalin could effectively and safely reduce postoperative pain in patients undergoing pulmonary resections. Altogether 23 papers were found using the reported search, of which 6 randomized co...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章,评审
doi:10.1093/icvts/ivz132
更新日期:2019-10-01 00:00:00
abstract::We describe our experience with extracorporeal cardiopulmonary resuscitation (CPR) using extracorporeal membrane oxygenation (ECMO) in children with refractory cardiac arrest, and determine predictors for mortality. ECMO support was instituted on 42 children, median age 0.7 years (1 day-17.8 years), median weight 7.05...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2010.254193
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:Mechanical circulatory support (MCS) is a valuable option in the setting of cardiogenic shock (CS), although MCS use in severe forms of peripartum cardiomyopathy (PPCM) is underreported. We aimed to investigate maternal outcomes under MCS for refractory CS complicating PPCM. METHODS:We retrospectively revie...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivx106
更新日期:2017-07-01 00:00:00
abstract::Shed blood is known to be a source of lipid micro-emboli in cardiac surgery. The aim of this study was to characterize the occurrence of these particles at different stages of the operation, and to study their occurrence in the circulation at multiple time-points after the retransfusion of shed blood. Forty-four patie...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2008.187021
更新日期:2009-05-01 00:00:00
abstract::The purpose of this study was to review the current clinical experience and pathological characteristics of cardiac tumors. We retrospectively reviewed 33,108 consecutive cases of cardiac operations performed at our institution from October 1996 to March 2005. There were 242 cases confirmed histologically as cardiac t...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2007.156554
更新日期:2007-10-01 00:00:00
abstract::We report a successful surgical management of postinfarction ventricular septal perforation by infarction-exclusion technique with the on-pump beating heart approach and concomitant coronary artery bypass grafting. The identification of the suture line by direct inspection and finger palpation could be more accurate i...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2008.188359
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVES:Favourable outcomes with mitral annuloplasty have been achieved with transapical cardioscopic (TAC) surgery in a survival animal model. In addition, experimental TAC on a non-survival animal model also showed adequate access to remove the native mitral valve and implant a prosthetic valve, but the surgical p...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivy076
更新日期:2018-09-01 00:00:00
abstract::We report on an uncommon case of a 10-month-old patient who required early surgical closure of an ostium secumdum atrial septal defect due to the concomitant presence of a big subcarinal bronchogenic cyst compressing the left atrium and, therefore, increasing the left-to-right shunt. It led to refractory congestive he...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2007.171280
更新日期:2008-05-01 00:00:00
abstract::Transesophageal echocardiography (TEE) is the fastest method for diagnosing aortic dissection type A and allows 3D TEE, even in hemodynamically instable patients. 3D TEE may provide additional information on aortic morphology, the involvement of coronary arteries by the dissection and aortic valve function. In this re...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2010.234724
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVES:The complexity of the mitral valve (MV) anatomy and function is not yet fully understood. Assessing the dynamic movement and interaction of MV components to define MV physiology during the complete cardiac cycle remains a challenge. We herein describe a novel semi-automated 4D MV model. METHODS:The model ap...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivu357
更新日期:2015-02-01 00:00:00
abstract::Cardiac haemangiomas are rare forms of cardiac tumours which can present at any age and in any cardiac location. The clinical presentations of patients vary and preoperative diagnosis of cardiac haemangiomas is usually made using echocardiography and magnetic resonance imaging (MRI). Surgical resection is the treatmen...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2010.237032
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVES:Transthoracic oesophagectomy is associated with high morbidity and mortality. Some oesophageal cancer (OC) patients with serious comorbidities cannot tolerate transthoracic oesophagectomy. Therefore, we have adopted a minimally invasive approach to oesophagectomy for such patients. METHODS:Eighty-five OC pa...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivu433
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVES:Our goal was to evaluate postoperative outcomes in patients with type A aortic dissection with preoperative neurological deficits independent of shock. METHODS:Between 2002 and 2017, 150 of 1600 patients, operated on for aortic dissection type A in 3 centres, presented with preoperative new onset neurologic...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章,多中心研究
doi:10.1093/icvts/ivz311
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVES:A variety of surgical approaches and techniques are used for isolated coarctation repair. We have retrospectively reviewed our results of isolated repair of coarctation over the last 20 years, to establish whether the approach affects clinical outcome and the need for re-intervention. METHODS:Two hundred an...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivs265
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVES:The HAART ring device has been introduced as a novel strategy to facilitate aortic valve repair. This rigid, elliptical device aims to restore normal leaflet configuration and to provide annular stabilization in the setting of aortic regurgitation. The goal of this preclinical study is to evaluate the in viv...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivy341
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVES:Few reports on the outcomes of patients treated for Stanford type A acute aortic intramural haematoma (TAAIMH) and retrograde thrombosed type A acute aortic dissection exist. This study aimed to evaluate their long-term results and predictors of adverse outcomes. METHODS:We retrospectively analysed 40 patie...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivz222
更新日期:2020-01-01 00:00:00
abstract::Atrial fibrillation (AF) is a common arrhythmia that occurs postoperatively in cardiac surgery. There is evidence for the role of oxidative stress in the etiology of AF. In our study, we examined whether antioxidant ascorbic acid (vitamin C), could help in the reduction of the incidence of postoperative AF. Patients w...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章,随机对照试验
doi:10.1510/icvts.2010.240473
更新日期:2011-02-01 00:00:00
abstract::The Ross procedure has gained increasing interest for therapy of aortic valve pathologies in young adults because of excellent long-term results. This case report describes the first published experiences of the Ross procedure performed through a minimally invasive access in two consecutive patients. The limited acces...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1510/icvts.2009.203067
更新日期:2009-09-01 00:00:00
abstract::A 16-month old boy presented with a severe tumour lysis syndrome (TLS) complicating induction therapy for acute myeloid leukaemia. This was further complicated by a respiratory syncytial virus infection. The failure of response to escalating treatment necessitated the use of extracorporeal life support (ECLS) during c...
journal_title:Interactive cardiovascular and thoracic surgery
pub_type: 杂志文章
doi:10.1093/icvts/ivs233
更新日期:2012-09-01 00:00:00