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Imamović A, Wagner D, Lindenmann J, Fink-Neuböck N, Sauseng S, Bajric T, Werkgartner G, Mischinger HJ. Life threatening rupture of the diaphragm after Covid 19 pneumonia: a case report. J Cardiothorac Surg 2022; 17:145. [PMID: 35672705 PMCID: PMC9171738 DOI: 10.1186/s13019-022-01886-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 05/19/2022] [Indexed: 11/22/2022] Open
Abstract
Background The incidence of diaphragmatic rupture is low; however, it may be life threatening. Normally caused by blunt trauma, some cases are reported after pulmonary infections with extensive coughing. Covid 19 causes pulmonary infections and pneumonia and has been associated with weakening of the diaphragm after prolonged ventilation. We present a patient who suffered from diaphragmatic rupture 2 months after recovering from a severe Covid 19 pneumonia.
Case A 71 years old male patient presented with massive thoraco-abdominal pain and severe dyspnea. At the time of admission, the patient was diagnosed with rupture of the diaphragm and developed cardiogenic shock. Intraoperatively there was a 4 cm diameter large rupture of the diaphragm with enterothorax (transverse colon, stomach, spleen, parts of the jejunum). Avulsion of the mesenteric arteries made a segmental resection of the jejunum together with the spleen necessary. A jejuno-jejunostomy was performed and organs were replaced into the abdomen. The rupture of the diaphragm underwent primary closure with non-resorbable suture material. The patient has shown an uneventful post-operative course, fully recovered and was discharged on day 11 after surgery. Conclusion Covid 19 is a disease that is known to have various effects on different organs. The diaphragm is only paid heed in case of dysfunction. Also in the setting of Covid 19 it is not known as prominent effector organ. Nevertheless its affection by coughing caused by Covid 19 can lead to life threatening complications.
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Lesko J, Triebl A, Stacher-Priehse E, Fink-Neuböck N, Lindenmann J, Smolle-Jüttner FM, Köfeler HC, Hrzenjak A, Olschewski H, Leithner K. Phospholipid dynamics in ex vivo lung cancer and normal lung explants. Exp Mol Med 2021; 53:81-90. [PMID: 33408336 PMCID: PMC8080582 DOI: 10.1038/s12276-020-00547-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/22/2020] [Accepted: 11/04/2020] [Indexed: 01/29/2023] Open
Abstract
In cancer cells, metabolic pathways are reprogrammed to promote cell proliferation and growth. While the rewiring of central biosynthetic pathways is being extensively studied, the dynamics of phospholipids in cancer cells are still poorly understood. In our study, we sought to evaluate de novo biosynthesis of glycerophospholipids (GPLs) in ex vivo lung cancer explants and corresponding normal lung tissue from six patients by utilizing a stable isotopic labeling approach. Incorporation of fully 13C-labeled glucose into the backbone of phosphatidylethanolamine (PE), phosphatidylcholine (PC), and phosphatidylinositol (PI) was analyzed by liquid chromatography/mass spectrometry. Lung cancer tissue showed significantly elevated isotopic enrichment within the glycerol backbone of PE, normalized to its incorporation into PI, compared to that in normal lung tissue; however, the size of the PE pool normalized to the size of the PI pool was smaller in tumor tissue. These findings indicate enhanced PE turnover in lung cancer tissue. Elevated biosynthesis of PE in lung cancer tissue was supported by enhanced expression of the PE biosynthesis genes ETNK2 and EPT1 and decreased expression of the PC and PI biosynthesis genes CHPT1 and CDS2, respectively, in different subtypes of lung cancer in publicly available datasets. Our study demonstrates that incorporation of glucose-derived carbons into the glycerol backbone of GPLs can be monitored to study phospholipid dynamics in tumor explants and shows that PE turnover is elevated in lung cancer tissue compared to normal lung tissue.
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Affiliation(s)
- Julia Lesko
- grid.11598.340000 0000 8988 2476Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria
| | - Alexander Triebl
- grid.11598.340000 0000 8988 2476Core Facility Mass Spectrometry and Lipidomics, ZMF, Medical University of Graz, Graz, Austria
| | - Elvira Stacher-Priehse
- grid.11598.340000 0000 8988 2476Institute of Pathology, Medical University of Graz, Graz, Austria ,grid.6363.00000 0001 2218 4662Present Address: Institute of Pathology, Asklepios Clinic Munich-Gauting, Munich, Germany
| | - Nicole Fink-Neuböck
- grid.11598.340000 0000 8988 2476Division of Thoracic and Hyperbaric Surgery, Medical University of Graz, Graz, Austria
| | - Jörg Lindenmann
- grid.11598.340000 0000 8988 2476Division of Thoracic and Hyperbaric Surgery, Medical University of Graz, Graz, Austria
| | - Freyja-Maria Smolle-Jüttner
- grid.11598.340000 0000 8988 2476Division of Thoracic and Hyperbaric Surgery, Medical University of Graz, Graz, Austria
| | - Harald C. Köfeler
- grid.11598.340000 0000 8988 2476Core Facility Mass Spectrometry and Lipidomics, ZMF, Medical University of Graz, Graz, Austria
| | - Andelko Hrzenjak
- grid.11598.340000 0000 8988 2476Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria ,grid.489038.eLudwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Horst Olschewski
- grid.11598.340000 0000 8988 2476Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria ,grid.489038.eLudwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Katharina Leithner
- grid.11598.340000 0000 8988 2476Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria
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