@article{ManiucSalingerAndersetal.2019,
  author    = {Maniuc, Octavian and Salinger, Tim and Anders, Fabian and M{\"u}ntze, Jonas and Liu, Dan and Hu, Kai and Ertl, Georg and Frantz, Stefan and Nordbeck, Peter},
  title     = {Impella CP use in patients with non-ischaemic cardiogenic shock},
  series = {ESC Heart Failure},
  volume    = {6},
  journal   = {ESC Heart Failure},
  number    = {4},
  doi       = {10.1002/ehf2.12446},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-202794},
  pages     = {863- 866},
  year      = {2019},
  abstract  = {Aims From the various mechanical cardiac assist devices and indications available, the use of the percutaneous intraventricular Impella CP pump is usually restricted to acute ischaemic shock or prophylactic indications in high-risk interventions. In the present study, we investigated clinical usefulness of the Impella CP device in patients with non-ischaemic cardiogenic shock as compared with acute ischaemia. Methods and results In this retrospective single-centre analysis, patients who received an Impella CP at the University Hospital W{\"u}rzburg between 2013 and 2017 due to non-ischaemic cardiogenic shock were age-matched 2:1 with patients receiving the device due to ischaemic cardiogenic shock. Inclusion criteria were therapy refractory haemodynamic instability with severe left ventricular systolic dysfunction and serum lactate >2.0 mmol/L at implantation. Basic clinical data, indications for mechanical ventricular support, and outcome were obtained in all patients with non-ischaemic as well as ischaemic shock and compared between both groups. Continuous variables are expressed as mean ± standard deviation or median (quartiles). Categorical variables are presented as count and per cent. Twenty-five patients had cardiogenic shock due to non-ischaemic reasons and were compared with 50 patients with cardiogenic shock due to acute myocardial infarction. Resuscitation rates before implantation of Impella CP were high (32 vs. 42\%; P = 0.402). At implantation, patients with non-ischaemic cardiogenic shock had lower levels of high-sensitive troponin T (110.65 [57.87-322.1] vs. 1610 [450.8-3861.5] pg/mL; P = 0.001) and lactate dehydrogenase (377 [279-608] vs. 616 [371.3-1109] U/L; P = 0.007), while age (59 ± 16 vs. 61.7 ± 11; P = 0.401), glomerular filtration rate (43.5 [33.2-59.7] vs. 48 [35.75-69] mL/min; P = 0.290), C-reactive protein (5.17 [3.27-10.26] vs. 10.97 [3.23-17.2] mg/dL; P = 0.195), catecholamine index (30.6 [10.6-116.9] vs. 47.6 [11.7-90] μg/kg/min; P = 0.663), and serum lactate (2.6 [2.2-5.8] vs. 2.9 [1.3-6.6] mmol/L; P = 0.424) were comparable between both groups. There was a trend for longer duration of Impella support in the non-ischaemic groups (5 [2-7.5] vs. 3 [2-5.25] days, P = 0.211). Rates of haemodialysis (52 vs. 47\%; P = 0.680) and transition to extracorporeal membrane oxygenation (13.6 vs. 22.2\%; P = 0.521) were comparable. No significant difference was found regarding both 30 day survival (48 vs. 30\%; P = 0.126) and in-hospital mortality (66.7 vs. 74\%; P = 0.512), although there was a trend for better survival in the non-ischaemic group. Conclusions These data suggest that temporary use of the Impella CP device might be a useful therapeutic option for bridge to recovery not only in ischaemic but also in non-ischaemic cardiogenic shock.},
  language  = {en}
}
@article{SherifHeroldVoelkeretal.2015,
  author    = {Sherif, Mohammad A. and Herold, Joerg and Voelker, Wolfram and Maniuc, Octavian and Ertl, Georg and Praast, Christian and Braun-Dullaeus, Ruediger Christian},
  title     = {Feasibility of a new method using two-dimensional transesophageal echocardiography for aortic annular sizing in patients undergoing transcatheter aortic valve implantation; a case-control study},
  series = {BMC Cardiovascular Disorders},
  volume    = {15},
  journal   = {BMC Cardiovascular Disorders},
  number    = {78},
  doi       = {10.1186/s12872-015-0072-7},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-148328},
  year      = {2015},
  abstract  = {Background: Accurate preoperative assessment of the aortic annulus dimension is crucial for successful transcatheter aortic valve implantation (TAVI). In this study we validated a new method using two-dimensional transesophageal echocardiography (2D-TEE) for measurement of the aortic annulus prior to TAVI. Methods: We analysed 124 patients who underwent successful TAVI using a self-expandable prosthesis, divided equally into two groups; in the study group we used the cross sectional short axis 2D-TEE for measurement of the aortic annulus and in the control group we used the long axis 2D-TEE. Results: Both groups were comparable regarding the clinical parameters. On the other hand, patients in the study group had less left ventricular ejection fraction (38.9 \% versus 45.6 \%, p = 0.01). The aortic valve annulus was, although not statistically significant, smaller in the study group (21.58 versus 23.28 mm, p = 0.25). Post procedural quantification of the aortic regurgitation revealed that only one patient in both groups had severe aortic regurgitation (AR), in this patient the valve was implanted deep. The incidence of significant AR was higher in the control group (29.0 \% versus 12.9 \%, p = 0.027). Conclusions: Sizing of the aortic valve annulus using cross-sectional 2D-TEE offers a safe and plausible method for patients undergoing TAVI using the self-expandable prosthesis and is significantly superior to using long axis 2D-TEE.},
  language  = {en}
}
@article{SherifInceManiucetal.2015,
  author    = {Sherif, Mohammad A. and Ince, H{\"u}seyin and Maniuc, Octavian and Reiter, Therese and Voelker, Wolfram and Ertl, Georg and {\"O}ner, Alper},
  title     = {Two-dimensional transesophageal echocardiography for aortic annular sizing in patients undergoing transcatheter aortic valve implantation},
  series = {BMC Cardiovascular Disorders},
  volume    = {15},
  journal   = {BMC Cardiovascular Disorders},
  number    = {181},
  doi       = {10.1186/s12872-015-0181-3},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-136002},
  year      = {2015},
  abstract  = {Background: Accurate preoperative assessment of the aortic annulus dimension is crucial for successful transcatheter aortic valve implantation (TAVI). In this study we examined the accuracy of a novel method using two-dimensional transesophageal echocardiography (2D-TEE) for measurement of the aortic annulus. Methods: We evaluated the theoretical impact of the measurement of the annulus diameter and area using the circumcircle of a triangle method on the decision to perform the procedure and choice of the prosthesis size. Results: Sixty-three consecutive patients were scheduled for TAVI. Mean age was 82 +/- 4 years, and 25 patients (55.6 \%) were female. Mean aortic annulus diameter was 20.3 +/- 2.2 mm assessed by TEE on the mid-esophageal long-axis view and 23.9 +/- 2.3 mm using CT (p < 0.001). There was a tendency for the TEE derived areas using the new method to be higher (p < 0.001). The TEE measurements were on average 42.33 mm(2) higher than the CT measurements without an evidence of a systematic over-or under-sizing (p = 1.00). Agreement between TEE and CT chosen valve sizes was good overall (kappa = 0.67 and weighted kappa = 0.71). For patients who turned out to have no AR, the two methods agreed in 84.6 \% of patients. Conclusions: CT remanis the gold standard in sizing of the aortic valve annulus. Nevertheless, sizing of the aortic valve annulus using TEE derived area may be helpful. The impact of integration of this method in the algorithm of aortic annulus sizing on the outcome of patients undergoing TAVI should be examined in future studies.},
  language  = {en}
}