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Wadiwala IJ, Garg P, Pham V, Taner CB, Farres H, Krishna M, Pham SM. Iatrogenic Acute Ascending Aortic Dissection During Combined Heart/Liver Transplant for Amyloidosis. Transplant Proc 2023; 55:1978-1980. [PMID: 37652784 DOI: 10.1016/j.transproceed.2023.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 07/31/2023] [Indexed: 09/02/2023]
Abstract
We report a case of iatrogenic acute type A aortic dissection (ATAAD) during a combined heart-liver transplant in a patient with amyloid-associated cardiac and hepatic failure. The patient developed ATAAD of the recipient's aorta during the heart transplantation. Because there was no sign of malperfusion or proximal extension into the donor aorta, we proceeded with the liver transplantation and continued medical management for ATAAD. The patient was discharged uneventfully 30 days after the transplant, and computed tomography coronary angiogram after 4 months showed stable dissection. During a heart transplant, ATAAD of the native aorta without malperfusion syndrome can be managed conservatively with close progress monitoring.
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Affiliation(s)
- Ishaq J Wadiwala
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, Florida
| | - Pankaj Garg
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, Florida
| | - Vivienne Pham
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, Florida
| | - C Burcin Taner
- Department of Transplantation, Mayo Clinic, Jacksonville, Florida
| | - Houssam Farres
- Department of Surgery, Mayo Clinic, Jacksonville, Florida
| | - Murli Krishna
- Department of Pathology, Mayo Clinic, Jacksonville, Florida
| | - Si M Pham
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, Florida.
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Khan FW, Pham V, Garg P, Hussain MWA, Pham SM. A novel technique for insertion of left ventricular assist device in a patient with severely calcified left ventricle apex. JTCVS Tech 2023; 19:61-63. [PMID: 37324359 PMCID: PMC10267860 DOI: 10.1016/j.xjtc.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/06/2023] [Accepted: 03/10/2023] [Indexed: 06/17/2023] Open
Affiliation(s)
| | - Vivienne Pham
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, Fla
| | - Pankaj Garg
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, Fla
| | | | - Si M. Pham
- Department of Cardiothoracic Surgery, Mayo Clinic, Jacksonville, Fla
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Pham V, Shen Y, Shen C. P-112 Oleic acid promotes the malignant transformation of Kras-mutant colonic organoids via the expansion of tumorigenic stem cells and abnormal Paneth cells through upregulation of NFATc family. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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4
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Pham V, Schmidt M, Chastre T, Combes A, Waintraub X, Chommeloux J. [Refractory pulmonary edema under ECMO: Is there a place for Rashkind atrioseptotomy?]. Ann Cardiol Angeiol (Paris) 2021; 70:355-359. [PMID: 33958190 DOI: 10.1016/j.ancard.2021.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 04/05/2021] [Indexed: 10/21/2022]
Abstract
Hydrostatic pulmonary edema is a well-known complication of veinoarterial extracorporeal membrane oxygenation (VA-ECMO) caused by increased left ventricle afterload due to reverse blood flow in the aorta. Several techniques are commonly used for left ventricle venting such as intra-aortic balloon pump, Impella® (Abiomed, Danvers, MA), central surgical cannulation or Rahskind atrial septostomy. We reported two cases of hydrostatic pulmonary edema in patients under VA-ECMO for whom it was decided to perform Rashkind technique. The first is a late anterior myocardial infarction complicated with cardiac arrest and cardiogenic shock. Refractory hypoxemia due to hydrostatic pulmonary edema conducted us to perform atrial septostomy. The second case is a refractory cardiogenic shock due to left main stent thrombosis myocardial infarction. Procedural transesophageal echocardiography revealed a large left atrial thrombus extended to pulmonary veins preventing the procedure. These two cases illustrate the importance and gravity of pulmonary edema induced by VA-ECMO. The first shows that this technique is feasible, allows great left ventricle unloading and improves hypoxemia. The second underlines the interest of performing transesophageal echocardiography to look for pulmonary veins thrombosis that can take part in the elevation of hydrostatic pressure and forbid Rashkind manoeuver.
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Affiliation(s)
- V Pham
- Service de réanimation médicale, institut de cardiologie, groupe hospitalier Pitié-Salpêtrière, 75651 Paris cedex 13, France.
| | - M Schmidt
- Service de réanimation médicale, institut de cardiologie, groupe hospitalier Pitié-Salpêtrière, 75651 Paris cedex 13, France
| | - T Chastre
- Service de cardiologie, institut de cardiologie, groupe hospitalier Pitié-Salpêtrière, 75651 Paris cedex 13, France; Service de cardiologie, centre hospitalier Poissy-Saint-Germain-En-Laye, 78303 Poissy, France
| | - A Combes
- Service de réanimation médicale, institut de cardiologie, groupe hospitalier Pitié-Salpêtrière, 75651 Paris cedex 13, France
| | - X Waintraub
- Service de cardiologie, institut de cardiologie, groupe hospitalier Pitié-Salpêtrière, 75651 Paris cedex 13, France
| | - J Chommeloux
- Service de réanimation médicale, institut de cardiologie, groupe hospitalier Pitié-Salpêtrière, 75651 Paris cedex 13, France
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Seyedin S, Hasibuzzaman M, Pham V, Callaghan C, Kalen A, Mapuskar K, Mott S, Spitz D, Allen B, Caster J. Combination Radiation Therapy and PARP Inhibition Enhances Responsiveness To Anti-PD-1 Therapy In Colorectal Tumor Models. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nguyen TA, Pham V, Chau DH, Mittova V, Mittova IY, Kopeychenko E, Tr. Nguyen LT, Bui VX, Nguyen AT. Effect of Ni substitution on phase transition, crystal structure and magnetic properties of nanostructured YFeO3 perovskite. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128293] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Hung DT, Van Hiep C, Khang PD, Hai NX, Anh NN, Dinh DA, Hao TVN, Pham V. GAMMA SPECTRUM STABILIZATION FOR ENVIRONMENTAL RADIATION MONITORING STATIONS USING NAI(TL) DETECTOR. Radiat Prot Dosimetry 2020; 189:48-55. [PMID: 32115653 DOI: 10.1093/rpd/ncaa011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/17/2019] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
Gamma spectrum measured by an NaI(Tl) detector is known to be unstable with the in situ temperature. In the present work, an advanced method has been applied to stabilize the gamma spectrum measured by the NaI(Tl) detector at environmental radiation monitoring (ERM) stations. The method is based on experimental data obtained under controlled conditions in laboratory. In the temperature range from 4 to 45°C, the relative deviation of the peak positions within the stabilized gamma spectrum is less than 2%. To test this method in a real scenario, it has been integrated into the ERM station at the Military Institute of Chemical and Environmental Engineering in Hanoi, Vietnam. The results show that the proposed method is ready for a real application.
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Affiliation(s)
- Dinh Tien Hung
- Military Institute of Chemical and Environmental Engineering, Hoai Duc, Hanoi 100000, Vietnam
| | - Cao Van Hiep
- Military Institute of Chemical and Environmental Engineering, Hoai Duc, Hanoi 100000, Vietnam
| | - Pham Dinh Khang
- Hanoi University of Science and Technology, 01 Dai Co Viet, Hanoi 100000, Vietnam
| | - Nguyen Xuan Hai
- Dalat Nuclear Research Institute, 01 Nguyen Tu Luc, Dalat 670000, Vietnam
| | - Nguyen Ngoc Anh
- Dalat Nuclear Research Institute, 01 Nguyen Tu Luc, Dalat 670000, Vietnam
| | - D A Dinh
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
| | - T V Nhan Hao
- Faculty of Physics, University of Education, Hue University, Hue 530000, Vietnam
| | - V Pham
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
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Katkhouda N, Alicuben ET, Pham V, Sandhu K, Samakar K, Bildzukewicz N, Houghton C, Dunn CP, Hawley L, Lipham J. Management of lateral abdominal hernias. Hernia 2020; 24:353-358. [PMID: 32052297 DOI: 10.1007/s10029-020-02126-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/08/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE Lateral abdominal wall hernias are rare defects but, due to their location, repair is difficult, and recurrence is common. Few studies exist to support a standard protocol for repair of these lateral hernias. We hypothesized that anchoring our repair to fixed bony structures would reduce recurrence rates. METHODS A retrospective review of all patients who underwent lateral hernia repair at our institution was performed. RESULTS Eight cases (seven flank and one thoracoabdominal) were reviewed. The median defect size was 105 cm2 (range 36-625 cm2). The median operative time was 185 min (range 133-282 min). There were no major complications. One patient who was repaired without mesh attachment to bony landmarks developed a recurrence at ten months and subsequently underwent reoperation. Patients with mesh secured to bony landmarks were recurrence free at a median follow-up of 171 days. CONCLUSIONS Lateral hernias present a greater challenge due to their anatomic location. An open technique with mesh fixation to bony structures is a promising solution to this complex problem.
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Affiliation(s)
- N Katkhouda
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA.
| | - E T Alicuben
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - V Pham
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - K Sandhu
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - K Samakar
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - N Bildzukewicz
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - C Houghton
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - C P Dunn
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - L Hawley
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
| | - J Lipham
- Division of Upper GI and General Surgery, Department of Surgery, Keck School of Medicine of University of Southern California, 1510 San Pablo Street, HCC I, Suite 527, Los Angeles, CA, 90033-4612, USA
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Pham V, Berthelot E, Jourdain P, Tam Bailly M, Motiejunaite J, Robard I, Sitbon O, Bouchachi A, Assayag P. For a better estimation of pulmonary pressures by echocardiography: Need for quality improvement. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2019.09.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pham V, Midey C, Georges JL, Lefevre G, Blicq E, Charbonnel C, Legriel S, Livarek B. [Isolated right ventricular acute myocardial infarction mimicking anterior infarction]. Ann Cardiol Angeiol (Paris) 2019; 68:389-393. [PMID: 31540702 DOI: 10.1016/j.ancard.2019.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
Isolated right ventricular acute myocardial infarction is rare and its presentation can sometimes mimic an anterior ST-segment elevation myocardial infarction. We reported two cases of isolated right ventricular acute myocardial infarction presenting with a ST-elevation in anterior leads. The first case was admitted for an out-of-hospital cardiac arrest due to ventricular fibrillation. The patient died from neurologic consequences of the cardiac arrest, despite a successful prehospital thrombolysis, followed by a percutaneous angioplasty of the right coronary artery. The second case occurred after a complex percutaneous angioplasty of the right coronary artery, complicated by a total occlusion of a right marginal branch. These two cases illustrate the limits of the ECG for the diagnosis of isolated right ventricular acute infarction, and the difficulties of the differential diagnosis with anterior infarction, which may determine the treatment and the prognosis.
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Affiliation(s)
- V Pham
- Service de cardiologie, centre hospitalier de Versailles, hôpital André Mignot, 177 rue de Versailles, 78150 Le Chesnay, France
| | - C Midey
- Service de cardiologie, centre hospitalier de Versailles, hôpital André Mignot, 177 rue de Versailles, 78150 Le Chesnay, France
| | - J L Georges
- Service de cardiologie, centre hospitalier de Versailles, hôpital André Mignot, 177 rue de Versailles, 78150 Le Chesnay, France.
| | - G Lefevre
- Service de cardiologie, centre hospitalier de Versailles, hôpital André Mignot, 177 rue de Versailles, 78150 Le Chesnay, France
| | - E Blicq
- Service de cardiologie, centre hospitalier de Versailles, hôpital André Mignot, 177 rue de Versailles, 78150 Le Chesnay, France
| | - C Charbonnel
- Service de cardiologie, centre hospitalier de Versailles, hôpital André Mignot, 177 rue de Versailles, 78150 Le Chesnay, France
| | - S Legriel
- Service de réanimation médicale, Centre Hospitalier de Versailles, Hôpital André Mignot, 78150 Le Chesnay, France
| | - B Livarek
- Service de cardiologie, centre hospitalier de Versailles, hôpital André Mignot, 177 rue de Versailles, 78150 Le Chesnay, France
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Wun W, Pham V, Wun I, Grunert G, Chauhan S, Mangal R, Schenk L, Kovanci E, Anaya Y, Dunn R. Priming spermatozoa with autologous cumulus enhances fertilization and blastocyst formation rates. ii. fertilization and embryo performance. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Pruna L, Pham V, Jacques T, Petitpain N, Huyhn D, Gerard A, Kaminsky P. Hépatite aiguë sévère au cours d’un lupus érythémateux systémique. Discussion étiologique. Rev Med Interne 2008. [DOI: 10.1016/j.revmed.2008.10.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Crade M, Pham V. Ultrasound examination of the sigmoid colon: possible new diagnostic tool for irritable bowel syndrome. Ultrasound Obstet Gynecol 2006; 27:206-9. [PMID: 16404710 DOI: 10.1002/uog.2620] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
OBJECTIVE Irritable bowel syndrome (IBS) affects about 10% of the population, and is primarily a disease of women. It may cause chronic pelvic pain. As yet there is no imaging test to aid in diagnosis, which relies upon history. We aimed to determine whether transvaginal sonographic investigation of the sigmoid colon could aid in the diagnosis of IBS. METHOD Transvaginal ultrasound was used in 175 female patients undergoing pelvic ultrasound studies for a variety of reasons, none specifically for bowel complaints. We measured the wall of the sigmoid colon and then obtained the history of positive or negative for IBS. RESULTS The majority of those 27 reporting a history of IBS had thickening of the wall of the sigmoid colon. A cut-off of 3.0 mm gave a sensitivity for this group of patients of 70%, specificity of 95%, positive predictive value of 73% and negative predictive value of 95%. CONCLUSION Transvaginal ultrasound may be useful in identifying patients at risk for IBS. Consideration of colon wall measurement during pelvic ultrasound should be studied, as IBS may be a cause of chronic pelvic pain.
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Affiliation(s)
- M Crade
- Ultrasonix, Long Beach, CA, USA.
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Sandall DW, Satkunanathan N, Keays DA, Polidano MA, Liping X, Pham V, Down JG, Khalil Z, Livett BG, Gayler KR. A novel alpha-conotoxin identified by gene sequencing is active in suppressing the vascular response to selective stimulation of sensory nerves in vivo. Biochemistry 2003; 42:6904-11. [PMID: 12779345 DOI: 10.1021/bi034043e] [Citation(s) in RCA: 149] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe the identification of a conopeptide sequence in venom duct mRNA from Conus victoriae that suppresses a vascular response to pain in the rat. PCR-RACE was used to screen venom duct cDNAs for those transcripts that encode specific antagonists of vertebrate neuronal nicotinic acetylcholine receptors (nAChRs). One of these peptides, Vc1.1, was active as an antagonist of neuronal nAChRs in receptor binding and functional studies in bovine chromaffin cells. It also suppressed the vascular responses to unmyelinated sensory nerve C-fiber activation in rats. Such vascular responses are involved in pain transmission. Furthermore, its ability to suppress C-fiber function was greater than that of MVIIA, an omega-conotoxin with known analgesic activity in rats and humans. Vc1.1 has a high degree of sequence similarity to the alpha-conotoxin family of peptides and has the 4,7 loop structure characteristic of the subfamily of peptides that act on neuronal-type nAChRs. The results suggest that neuronal alpha-conotoxins should be further investigated with respect to their potential to suppress pain.
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MESH Headings
- Amino Acid Sequence
- Animals
- Base Sequence
- Cattle
- Chromaffin Cells/drug effects
- Chromaffin Cells/metabolism
- Conotoxins/genetics
- Conotoxins/pharmacology
- DNA, Complementary/genetics
- Dose-Response Relationship, Drug
- Male
- Molecular Sequence Data
- Nerve Fibers, Unmyelinated/drug effects
- Nerve Fibers, Unmyelinated/physiology
- Neuromuscular Junction/drug effects
- Neuromuscular Junction/physiology
- Neurons, Afferent/drug effects
- Neurons, Afferent/physiology
- Nicotinic Antagonists/pharmacology
- Polymerase Chain Reaction/methods
- RNA, Messenger/genetics
- Rats
- Rats, Sprague-Dawley
- Receptors, Nicotinic/physiology
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- omega-Conotoxins/pharmacology
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Affiliation(s)
- D W Sandall
- Department of Biochemistry and Molecular Biology and National Ageing Research Institute, The University of Melbourne, Victoria 3010, Australia
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Abstract
Nitroalkanes add to cyclic and acyclic enones in an enantioselective manner in the presence of catalytic quantities of L-proline and trans-2,5-dimethylpiperazine as excess additive.
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Affiliation(s)
- S Hanessian
- Department of Chemistry, Université de Montréal, C.P. 6128, Succ. Centre-ville, Montréal, QC, H3C 3J7, Canada.
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Pauschinger M, Bowles NE, Fuentes-Garcia FJ, Pham V, Kühl U, Schwimmbeck PL, Schultheiss HP, Towbin JA. Detection of adenoviral genome in the myocardium of adult patients with idiopathic left ventricular dysfunction. Circulation 1999; 99:1348-54. [PMID: 10077520 DOI: 10.1161/01.cir.99.10.1348] [Citation(s) in RCA: 174] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The use of molecular biological techniques has demonstrated the importance of enteroviral infection of the myocardium in the pathogenesis of myocarditis and dilated cardiomyopathy in adults and adenovirus and enterovirus infection in children. The aim of this study was to determine the frequency of adenoviral infection of the myocardium of adults with impaired left ventricular function of unknown origin. METHODS AND RESULTS Nested polymerase chain reaction (nPCR) was used to determine the frequency of detection of adenoviral DNA and enteroviral RNA in myocardial tissue samples from 94 adult patients with idiopathic left ventricular dysfunction and 14 control patients. Histological and immunohistological analyses were performed to detect myocardial inflammation. Adenoviral genomic DNA was detected by nPCR in 12 of the 94 patients with left ventricular dysfunction (in each case, adenovirus type 2), whereas enteroviral RNA was detected in another 12 patients. All control samples were negative for both viruses. In all patients, active myocarditis was excluded according to the Dallas criteria. However, there was significantly decreased CD2, CD3, and CD45RO T lymphocyte counts in the adenovirus-positive group compared with the adenovirus-negative group (P<0.05), whereas no differences were associated with enterovirus infection. CONCLUSIONS Although enteroviruses are an important causative agent in the pathogenesis of myocarditis and dilated cardiomyopathy, this study shows that adenovirus infection is also important in the pathogenesis of left ventricular failure in adults. However, the pathogenetic basis of disease associated with adenovirus infection may be different than that after infection with other agents, particularly with respect to activation of the host immune response.
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Affiliation(s)
- M Pauschinger
- Medical Clinic II, University Hospital Benjamin Franklin, Freie University Berlin, Germany
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Abstract
Two methods for testing the susceptibility of Mycobacterium tuberculosis to rifapentine have been developed: the agar proportion method and the radiometric BACTEC technique. A critical concentration of 0.5 microg of rifapentine per ml is proposed for both methods since it provides a reliable means of distinguishing between susceptible and resistant M. tuberculosis isolates. It is recommended that two quality control M. tuberculosis strains be used at the introduction of these tests in a clinical laboratory: one that is pansusceptible (H37Rv) and one that is resistant to rifapentine. The resistant strain can be obtained from the American Type Culture Collection, where it is deposited under the number ATCC 700457.
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Affiliation(s)
- L Heifets
- National Jewish Medical and Research Center and University of Colorado Health Sciences Center, Denver, Colorado 80206, USA.
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