Friedrich, Martin

[["dc.bibliographiccitation.firstpage","347"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Annals of Thoracic and Cardiovascular Surgery"],["dc.bibliographiccitation.lastpage","351"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Mirzaie, Masoud"],["dc.contributor.author","Fatehpur, Sheila"],["dc.contributor.author","Friedrich, Martin"],["dc.contributor.author","Sossalla, Samuel T."],["dc.contributor.author","Sohns, Christian"],["dc.contributor.author","Schoendube, Friedrich Albert"],["dc.contributor.author","Schmitto, Jan Dieter"],["dc.date.accessioned","2018-11-07T08:53:26Z"],["dc.date.available","2018-11-07T08:53:26Z"],["dc.date.issued","2011"],["dc.description.abstract","Objective: The present paper exemplary describes several severe stenoses of supraaortic branches with its symptoms and operative treatments. Methods: Eight patients, two female (68 +/- 5 y), six male (73 +/- 4 y), were retrospectively evaluated. Patients showed neurological signs as followed: recurring attacks of vertigo (80%), temporary paresis of extremity (20%), speech disorders (20%) and subclavian and/or carotic-steel-syndrome (15%). Seven patients have already been previously treated with revascularization of the supraaortic branches in the past. The surgical techniques used were thrombendarterectomy of the internal carotid artery, carotid-subclavian bypass and complex aortotruncal, aorto-carotid and aorto-subclavian-bypass. Results: One patient died nine days postoperatively due to myocardial infarction. Mean duration of stay on intensive care unit was 1.5 days. Mean duration of postoperative ventilation was six hours. Average duration of stay on normal ward was nine days. Conclusion: This study presents several complex reconstructions of supraaortic branches, which were indicated in cases with severe stenoses of supraaortic branches. Even though treatment strategies were complex the peri- and postoperative complication rates are quite low. These therapeutic strategies were necessary to avoid severe neurological complications in these patients."],["dc.identifier.doi","10.5761/atcs.oa.09.01432"],["dc.identifier.isi","000294510200005"],["dc.identifier.pmid","21881320"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22408"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Medical Tribune Inc"],["dc.relation.issn","1341-1098"],["dc.title","Complex Reconstruction of Supraaortic Branches"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","10"],["dc.bibliographiccitation.journal","Journal of Cardiothoracic Surgery"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Friedrich, Martin"],["dc.contributor.author","Tirilomis, Theodor"],["dc.contributor.author","Schmitto, Jan Dieter"],["dc.contributor.author","Popov, Aron-Frederik"],["dc.contributor.author","Mokashi, Suyog A."],["dc.contributor.author","Hinterthaner, Marc"],["dc.contributor.author","Hanekop, Gerd-Gunnar"],["dc.contributor.author","Zwaka, Paul"],["dc.contributor.author","Schoendube, Friedrich Albert"],["dc.date.accessioned","2018-11-07T08:45:05Z"],["dc.date.available","2018-11-07T08:45:05Z"],["dc.date.issued","2010"],["dc.description.abstract","A surgical fire is a serious complication not previously described in the literature with regard to the thoracic cavity. We report a case in which an intrathoracic fire developed following an air leak combined with high pressure oxygen ventilation in a patient with severe chronic obstructive pulmonary disease. The patient presented to our institution with diffuse coronary artery disease and angina pectoris. He was treated with coronary artery bypass graft surgery, including left internal thoracic artery harvesting. Additionally to this rare presentation of an intrathoracic fire, a brief review of surgical fires is included to this paper."],["dc.identifier.doi","10.1186/1749-8090-5-10"],["dc.identifier.isi","000275913300001"],["dc.identifier.pmid","20219127"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20350"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1749-8090"],["dc.title","Intrathoracic fire during preparation of the left internal thoracic artery for coronary artery bypass grafting"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","57"],["dc.bibliographiccitation.journal","Journal of Cardiothoracic Surgery"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Popov, Aron-Frederik"],["dc.contributor.author","Schmitto, Jan Dieter"],["dc.contributor.author","Tirilomis, Theodor"],["dc.contributor.author","Bireta, Christian"],["dc.contributor.author","Coskun, Kasim Oguz"],["dc.contributor.author","Mokashi, Suyog A."],["dc.contributor.author","Emmert, Alexander"],["dc.contributor.author","Friedrich, Martin"],["dc.contributor.author","Wiese, Christoph Hermann"],["dc.contributor.author","Schoendube, Friedrich Albert"],["dc.date.accessioned","2018-11-07T08:40:27Z"],["dc.date.available","2018-11-07T08:40:27Z"],["dc.date.issued","2010"],["dc.description.abstract","We present a case of a 77-year old female who had undergone a coronary artery bypass grafting with an aortic valve replacement and developed three month later a Methicillin-Resistant Staphylococcus aureus (MRSA) sternal wound infection which was successful treated with Daptomycin combined with vacuum-assisted closure (VAC)."],["dc.identifier.doi","10.1186/1749-8090-5-57"],["dc.identifier.isi","000282338800001"],["dc.identifier.pmid","20691034"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19234"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1749-8090"],["dc.title","Daptomycin as a possible new treatment option for surgical management of Methicillin-Resistant Staphylococcus aureus sternal wound infection after cardiac surgery"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1103"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Artificial Organs"],["dc.bibliographiccitation.lastpage","1104"],["dc.bibliographiccitation.volume","35"],["dc.contributor.author","Tirilomis, Theodor"],["dc.contributor.author","Friedrich, Martin"],["dc.contributor.author","Coskun, Kasim Oguz"],["dc.contributor.author","Tempes, Tasso"],["dc.contributor.author","Popov, Aron-Frederik"],["dc.contributor.author","Schmitto, Jan Dieter"],["dc.contributor.author","Schoendube, Friedrich Albert"],["dc.date.accessioned","2018-11-07T08:50:09Z"],["dc.date.available","2018-11-07T08:50:09Z"],["dc.date.issued","2011"],["dc.description.abstract","Renal failure after open heart surgery is a serious complication even in the pediatric population. The aim of the present study was to analyze morphological changes after cardiopulmonary bypass (CPB) surgery in a neonatal piglet model. The kidneys of newborn piglets sacrificed 6 h after CPB were examined (CPB; n = 4) regarding tubular dilatation, vacuole formation, leukocytic infiltration, epithelial destruction, and interstitial edema. Thereafter, the findings were compared with the morphology of normal (untreated) neonatal piglet kidneys (control; n = 4). All changes but the interstitial edema were statistically significant if compared with the normal renal tissue: tubular dilatation (CPB vs. control P < 0.05), vacuole formation (CPB vs. control P < 0.05), leukocytic infiltration (CPB vs. control P < 0.05), and epithelial destruction (CPB vs. control P < 0.001). In conclusion, CPB induces significant changes in the morphology of the neonatal piglet kidneys."],["dc.identifier.doi","10.1111/j.1525-1594.2011.01364.x"],["dc.identifier.isi","000297201200017"],["dc.identifier.pmid","21973032"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21631"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","0160-564X"],["dc.title","Cardiopulmonary Bypass and Its Direct Effects on Neonatal Piglet Kidney Morphology"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","969"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Artificial Organs"],["dc.bibliographiccitation.lastpage","979"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Heidrich, Florian"],["dc.contributor.author","Sossalla, Samuel T."],["dc.contributor.author","Schotola, Hanna"],["dc.contributor.author","Vorkamp, Tobias"],["dc.contributor.author","Ortmann, Philipp"],["dc.contributor.author","Popov, Aron-Frederik"],["dc.contributor.author","Coskun, Kasim Oguz"],["dc.contributor.author","Rajab, Taufiek K."],["dc.contributor.author","Friedrich, Martin"],["dc.contributor.author","Sohns, Christian"],["dc.contributor.author","Hinz, Jose"],["dc.contributor.author","Bauer, Martin"],["dc.contributor.author","Quintel, Michael"],["dc.contributor.author","Schoendube, Friedrich Albert"],["dc.contributor.author","Schmitto, Jan Dieter"],["dc.date.accessioned","2018-11-07T08:37:19Z"],["dc.date.available","2018-11-07T08:37:19Z"],["dc.date.issued","2010"],["dc.description.abstract","We established a stable and reproducible animal model of chronic heart failure (CHF) in sheep to investigate biomolecular changes. Therefore, two biomarkers, adenosine monophosphate-activated protein kinase (AMPK) and vascular endothelial growth factor-A (VEGF-A) were examined to reveal their role during chronic ischemic conditions of the heart. AMPK was studied because it plays an important role in cellular energy homeostasis and its upregulation is associated with myocardial ischemia, whereas VEGF-A was studied because it acts as an important signaling protein for neoangiogenesis. We examined 15 juvenile sheep (mean weight, 78 +/- 4 kg; control, n = 3; ShamOP, n = 2; coronary microembolization [CME], n = 10). CHF was induced under fluoroscopic guidance by multiple sequential microembolizations (MEs) through bolus injection of polysterol microspheres (90 mu m, n = 25.000) into the left main coronary artery. CME was repeated up to three times at 2- to 3-week intervals until animals started to develop stable signs of CHF. All animals were followed for 3 months. Phosphorylation of AMPK, marking the activated protein form, was detected by Western blotting. VEGF-A and vascular endothelial growth factor-receptor 2 (VEGF-R2) mRNA were detected by real-time polymerase chain reaction. Glyceraldehyde-3-phosphate-dehydrogenase (GAPDH) was used as a reference housekeeping gene. All 10 CHF animals developed clinical signs of CHF as indicated by a significant decrease of cardiac output, decreased ejection fraction, as well as occurrence of tachycardia and tachypnoea. Western blots showed significant phosphorylation of AMPK in CME animals compared to the control group (phospho-adenosine monophosphate-activated protein kinase a) (GAPDH control: 0.0, CME left ventricle [LV]: 0.39 +/- 0.20, CME right ventricle [RV]: 0.53 +/- 0.30; P < 0.05). VEGF-A and VEGF-R2 expression in CME animal myocardium was within the range of the control group, but this data did not reach statistical significance due to the small size of this group. While microinjection was performed into the left main coronary artery, phosphorylation of AMPK and expression of VEGF-A and VEGF-R2 were significantly higher in the RV than in the LV. Multiple sequential intracoronary MEs can effectively induce myocardial dysfunction with clinical and biomolecular signs of chronic ischemic cardiomyopathy. Quantitative analysis of biomolecular markers showed a significantly higher phosphorylation of AMPK in CHF animals compared with control myocardium."],["dc.identifier.doi","10.1111/j.1525-1594.2010.01121.x"],["dc.identifier.isi","000284588300018"],["dc.identifier.pmid","21092039"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18501"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.publisher.place","Hoboken"],["dc.relation.conference","6th International Conference on Pediatric Mechanical Circulatory Support Systems and Pediatric Cardiopulmonary Perfusion"],["dc.relation.eventlocation","Boston, MA"],["dc.relation.issn","1525-1594"],["dc.relation.issn","0160-564X"],["dc.title","The Role of Phospho-Adenosine Monophosphate-Activated Protein Kinase and Vascular Endothelial Growth Factor in a Model of Chronic Heart Failure"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","331"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Annals of Thoracic and Cardiovascular Surgery"],["dc.bibliographiccitation.lastpage","334"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Schmitto, Jan Dieter"],["dc.contributor.author","Popov, Aron-Frederik"],["dc.contributor.author","Coskun, Kasim Oguz"],["dc.contributor.author","Friedrich, Martin"],["dc.contributor.author","Sossalla, Samuel T."],["dc.contributor.author","Didilis, Vassilios N."],["dc.contributor.author","Schoendube, Friedrich Albert"],["dc.contributor.author","Mirzaie, Masoud"],["dc.date.accessioned","2018-11-07T08:38:14Z"],["dc.date.available","2018-11-07T08:38:14Z"],["dc.date.issued","2010"],["dc.description.abstract","Purpose: The aim of this study was to analyze systematically the morphology of aortal segments of Type A dissection. Methods: Nineteen patients were operated on for Type A dissection in the Department of Thoracic, Cardiac, and Vascular Surgery in Goettingen, Germany, from January 2002 to January 2005. All diagnoses were confirmed by transesophageal echocardiography and computed tomography of the chest. All taken aortic segments were examined by the conventional histological and electron microscopical method. Results: Besides subadventitial hyperplasia of collagen filaments, the preparations showed hyperplasia of endothelial cells with loose cellular junctions, desquamation of endothelial cells, and morphological changes of endothelial cells with villius development, as well as signs of aortitis. Conclusion: The present results arouse suspicion of local inflammation of the aortic wall, but with moderate progress under strong hyperplasia. Because of rupture of the intima, the inflammation appears as an acute disease. (Ann Thorac Cardiovasc Surg 2010; 16: 331-334)"],["dc.identifier.isi","000283521600005"],["dc.identifier.pmid","21030919"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18721"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Medical Tribune Inc"],["dc.relation.issn","1341-1098"],["dc.title","Morphological Investigations of Type A Aortic Dissection"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]