Medical College of Wisconsin
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G Hossein Almassi MD

G Hossein Almassi MD


Institution: Medical College of Wisconsin
Department: Surgery
Division: Cardiothoracic
Program: Cardiothoracic Surgery


  • A Highly Mobile Mass in the Anterior Left Ventricular Outflow Tract Immediately Beneath a Heavily Calcified, Stenotic Aortic Valve: Vegetation, Thrombus, or Neoplasm? (Pagel PS, De Vry DJ, Lopez BE, Zdanovec AK, Price BN, Encarnación CO, Kryniak MP, Almassi GH) J Cardiothorac Vasc Anesth 2015 May 5: PMID: 26277438 08/19/2015
  • Postoperative atrial fibrillation; the search goes on. (Almassi GH) J Surg Res 2015 Sep;198(1):57-8 PMID: 26073351 06/16/2015
  • Giant coronary artery aneurysms. (Almassi GH) Tex Heart Inst J 2015 Feb;42(1):96 PMID: 25873815 PMCID: PMC4378062 04/16/2015
  • Unraveling the mystery of postoperative atrial fibrillation. (Almassi GH) J Thorac Cardiovasc Surg 2015 Mar;149(3):893 PMID: 25534300 12/24/2014
  • "Unicuspid" aortic valve bioprosthesis: a complication of surgery for a left hip Morel-Lavallée lesion? (De Vry DJ, Schnake PK, Colwell EM, Novalija J, Almassi GH, Pagel PS) J Cardiothorac Vasc Anesth 2015 Apr;29(2):545-7 PMID: 25534760 12/24/2014
  • Postoperative atrial fibrillation impacts on costs and one-year clinical outcomes: the Veterans Affairs Randomized On/Off Bypass Trial. (Almassi GH, Wagner TH, Carr B, Hattler B, Collins JF, Quin JA, Ebrahimi R, Grover FL, Bishawi M, Shroyer AL, VA #517 Randomized On/Off Bypass (ROOBY) Study Group) Ann Thorac Surg 2015 Jan;99(1):109-14 PMID: 25442992 12/03/2014
  • Surgeon judgment and utility of transit time flow probes in coronary artery bypass grafting surgery. (Quin J, Lucke J, Hattler B, Gupta S, Baltz J, Bishawi M, Almassi GH, Grover FL, Collins J, Shroyer AL) JAMA Surg 2014 Nov;149(11):1182-7 PMID: 25251332 09/25/2014
  • Comparing off-pump and on-pump clinical outcomes and costs for diabetic cardiac surgery patients. (Shroyer AL, Hattler B, Wagner TH, Baltz JH, Collins JF, Carr BM, Almassi GH, Quin JA, Hawkins RB, Kozora E, Bishawi M, Ebrahimi R, Grover FL, VA #517 Randomized On/Off Bypass (ROOBY) Study Group) Ann Thorac Surg 2014 Jul;98(1):38-44; discussion 44-5 PMID: 24841548 05/21/2014
  • ROOBY trial data demonstrates revascularization had no impact on POAF. (Almassi GH, Shroyer AL, Collins JF, Grover FL) Future Cardiol 2014 Mar;10(2):157 PMID: 24762239 04/26/2014
  • Cardiovascular risk in patients without known cardiovascular disease. (Carbone RG, Algahim MF, Rizzo S, Monselise A, Dart RA, Almassi GH, Gutterman DD) Eur Rev Med Pharmacol Sci 2014;18(3):365-73 PMID: 24563436 02/25/2014
  • Effect of clopidogrel use post coronary artery bypass surgery on graft patency. (Ebrahimi R, Bakaeen FG, Uberoi A, Ardehali A, Baltz JH, Hattler B, Almassi GH, Wagner TH, Collins JF, Grover FL, Shroyer AL) Ann Thorac Surg 2014 Jan;97(1):15-21 PMID: 24206971 11/12/2013
  • Mechanism of torrential regurgitation in mitral valve endocarditis: the usual chordal rupture-leaflet flail or another more dramatic structural defect? (Wickliff EM, Weber CA, Wyler von Ballmoos MC, Dague HL, Novalija J, Almassi GH, Pagel PS) J Cardiothorac Vasc Anesth 2014 Jun;28(3):854-6 PMID: 24103714 10/10/2013
  • A heart with six chambers: a remarkable anomaly or a late complication after cardiac surgery? (Pagel PS, Khotimsky I, Almassi GH) J Cardiothorac Vasc Anesth 2014 Apr;28(2):435-7 PMID: 24035450 09/17/2013
  • Chronic obstructive pulmonary disease impact upon outcomes: the veterans affairs randomized on/off bypass trial. (Almassi GH, Shroyer AL, Collins JF, Hattler B, Bishawi M, Baltz JH, Ebrahimi R, Grover FL) Ann Thorac Surg 2013 Oct;96(4):1302-9 PMID: 23915589 08/07/2013
  • Changes in health-related quality of life in off-pump versus on-pump cardiac surgery: Veterans Affairs Randomized On/Off Bypass trial. (Bishawi M, Shroyer AL, Rumsfeld JS, Spertus JA, Baltz JH, Collins JF, Quin JA, Almassi GH, Grover FL, Hattler B, Va #517 Randomized on/off Bypass (Rooby) Study Group) Ann Thorac Surg 2013 Jun;95(6):1946-51 PMID: 23453761 03/05/2013
  • Current and emerging management options for patients with Morquio A syndrome. (Algahim MF, Almassi GH) Ther Clin Risk Manag 2013;9:45-53 PMID: 23413237 PMCID: PMC3572824 02/16/2013
  • A unique hybrid approach to the treatment of an aberrant right subclavian artery aneurysm. (Southard NM, Seabrook GR, Tutton SM, Almassi GH, Lewis BD, Brown KR, Rossi PJ) Vasc Endovascular Surg 2013 Feb;47(2):128-30 PMID: 23143227 11/13/2012
  • 40-year-old externalized pacemaker lead: to extract or not to extract - that is the risk assessment question. (Gluncic V, Singh D, Almassi GH) Ann Card Anaesth 2012 Jul-Sep;15(3):252-3 PMID: 22772525 07/10/2012
  • The 33-year patency of a saphenous vein-to-coronary artery bypass graft. (Truong MN, Hossein Almassi G) Tex Heart Inst J 2012;39(3):440-1 PMID: 22719165 PMCID: PMC3368458 06/22/2012
  • A Bjork-Shiley valve 40 years in action. (Almassi GH) Ann Thorac Surg 2012 Apr;93(4):e105 PMID: 22450106 03/28/2012
  • Predictors and impact of postoperative atrial fibrillation on patients' outcomes: a report from the Randomized On Versus Off Bypass trial. (Almassi GH, Pecsi SA, Collins JF, Shroyer AL, Zenati MA, Grover FL) J Thorac Cardiovasc Surg 2012 Jan;143(1):93-102 PMID: 22054659 11/08/2011
  • Impact of endoscopic versus open saphenous vein harvest technique on late coronary artery bypass grafting patient outcomes in the ROOBY (Randomized On/Off Bypass) Trial. (Zenati MA, Shroyer AL, Collins JF, Hattler B, Ota T, Almassi GH, Amidi M, Novitzky D, Grover FL, Sonel AF) J Thorac Cardiovasc Surg 2011 Feb;141(2):338-44 PMID: 21130476 12/07/2010
  • Deep hypothermic circulatory arrest for a patient with known cold agglutinins. (Pecsi SA, Almassi GH, Langenstroer P) Ann Thorac Surg 2009 Oct;88(4):1326-7 PMID: 19766831 09/22/2009
  • Multiple giant coronary artery aneurysms. (Marla R, Ebel R, Crosby M, Almassi GH) Tex Heart Inst J 2009;36(3):244-6 PMID: 19568397 PMCID: PMC2696511 07/02/2009
  • Perioperative implications of Morquio syndrome in a 31-year-old woman undergoing aortic valve replacement. (Pagel PS, Almassi GH) J Cardiothorac Vasc Anesth 2009 Dec;23(6):855-7 PMID: 19201209 02/10/2009
  • Atrial septal thickening in a patient with syncope: variant of lipomatous hypertrophy or cardiac neoplasm? (Markan S, Lindenbaum L, Iqbal Z, Novalija J, Almassi GH, Pagel PS) J Cardiothorac Vasc Anesth 2009 Jun;23(3):424-6 PMID: 18834808 10/07/2008
  • A 2-day history of shortness of breath and intermittent dull substernal chest pain in a 42-year-old man: a case of acute insecticide toxicity or something more ominous? (Pagel PS, Gandhi SD, Shah JR, Butler EG, Almassi GH) J Cardiothorac Vasc Anesth 2009 Oct;23(5):732-4 PMID: 18834817 10/07/2008
  • Incidental discovery of a large right atrial mass in a patient during evaluation for upper abdominal pain. (Novalija J, Lang T, Butler EG, Almassi GH, Pagel PS) J Cardiothorac Vasc Anesth 2009 Oct;23(5):729-31 PMID: 18834833 10/07/2008
  • Progressive dyspnea on exertion in a patient with known coronary artery disease and a remote history of Hodgkin's lymphoma. (Braun AJ, Marla R, Schubert C, Iqbal Z, Markan S, Almassi GH, Pagel PS) J Cardiothorac Vasc Anesth 2008 Dec;22(6):932-4 PMID: 18834763 10/07/2008
  • Pretty intraventricular rainbow or convincing evidence for a primary cause of heart failure? (Carroll B, Robinson DA, Markan S, Iqbal Z, Almassi GH, Pagel PS) J Cardiothorac Vasc Anesth 2008 Aug;22(4):633-5 PMID: 18662646 07/30/2008
  • Circumferential intimal flap prolapsing into the left ventricle. (Almassi GH) Tex Heart Inst J 2008;35(2):227-8; author reply 228 PMID: 18612495 PMCID: PMC2435441 07/10/2008
  • Remote right ventricular rupture after coronary artery bypass graft surgery: a catastrophic complication of occult right ventricular infarction in a patient with a sternal infection. (Pagel PS, Iqbal Z, Gandhi SD, Novalija J, Markan S, May JA, Almassi GH) J Cardiothorac Vasc Anesth 2008 Apr;22(2):270-2 PMID: 18375334 04/01/2008
  • Massive retrograde acute type B aortic dissection in a postpartum woman with a family history of Marfan syndrome. (Gandhi SD, Iqbal Z, Markan S, Almassi GH, Pagel PS) J Clin Anesth 2008 Feb;20(1):50-3 PMID: 18346611 03/19/2008
  • Management of hereditary angioedema during off-pump coronary arterial surgery. (Pecsi SA, Almassi GH, Bojrab RB, Pagel PS) Ann Thorac Surg 2008 Mar;85(3):1079-81 PMID: 18291204 02/23/2008
  • Case 4-2007. Aprotinin-induced cardiovascular collapse after a negative test dose in a patient scheduled for repeat mitral valve surgery. (Beaulieu PL, Gandhi SD, Iqbal Z, Butler EG, Almassi GH, Pagel PS, Levy JH) J Cardiothorac Vasc Anesth 2007 Aug;21(4):597-601 PMID: 17678797 08/07/2007
  • Invited commentary. (Almassi GH) Ann Thorac Surg 2007 May;83(5):1723 PMID: 17462388 04/28/2007
  • A circular structure in the aortic outflow tract during diastole: an unusual complication of cocaine abuse. (Alosman A, Bress JM, Bek E, Almassi GH, Pagel PS) J Cardiothorac Vasc Anesth 2006 Jun;20(3):458-60 PMID: 16750754 06/06/2006
  • Internal thoracic vein aneurysm presenting as an anterior mediastinal mass. (Almassi GH) J Thorac Cardiovasc Surg 2006 Feb;131(2):500-1 PMID: 16434298 01/26/2006
  • Comparative in vitro antimicrobial activity of a novel quinolone, garenoxacin, against aerobic and anaerobic microbial isolates recovered from general, vascular, cardiothoracic and otolaryngologic surgical patients. (Edmiston CE Jr, Krepel CJ, Kehl KS, Seabrook GR, Somberg LB, Almassi GH, Smith TL, Loehrl TA, Brown KR, Lewis BD, Towne JB) J Antimicrob Chemother 2005 Nov;56(5):872-8 PMID: 16186167 09/28/2005
  • Determinants of mortality in stroke patients with right brain damage. (Helms AK, Torbey MT, Almassi GH) Curr Atheroscler Rep 2005 Jul;7(4):289-95 PMID: 15975322 06/25/2005
  • A novel approach to the management of tracheoinnominate artery fistula. (Gasparri MG, Nicolosi AC, Almassi GH) Ann Thorac Surg 2004 Apr;77(4):1424-6 PMID: 15063280 04/06/2004
  • Proximal prolapse of aortic intimal flap: a rare complication of acute type A aortic dissection. (Almassi GH) J Thorac Cardiovasc Surg 2003 Jun;125(6):1546-8 PMID: 12830084 06/28/2003
  • Oral hypoglycemic agents in coronary artery bypass grafting. (Almassi GH, Warltier D) Ann Thorac Surg 2001 Jun;71(6):2086 PMID: 11426820 06/28/2001
  • Surgery for tumors with cavoatrial extension. (Almassi GH) Semin Thorac Cardiovasc Surg 2000 Apr;12(2):111-8 PMID: 10807433 05/12/2000
  • Stroke in cardiac surgical patients: determinants and outcome. (Almassi GH, Sommers T, Moritz TE, Shroyer AL, London MJ, Henderson WG, Sethi GK, Grover FL, Hammermeister KE) Ann Thorac Surg 1999 Aug;68(2):391-7; discussion 397-8 PMID: 10475402 09/04/1999
  • Fibrous ball: a new manifestation of chronic defibrillator and pacemaker infection. (Almassi GH, Edmiston CE Jr, Olinger GN) Ann Thorac Surg 1999 Jun;67(6):1782-3 PMID: 10391294 07/03/1999
  • Atrial fibrillation after cardiac surgery: a major morbid event? (Almassi GH, Schowalter T, Nicolosi AC, Aggarwal A, Moritz TE, Henderson WG, Tarazi R, Shroyer AL, Sethi GK, Grover FL, Hammermeister KE) Ann Surg 1997 Oct;226(4):501-11; discussion 511-3 PMID: 9351718 PMCID: PMC1191069 11/14/1997
  • Both dietary fish-oil supplementation and aspirin fail to inhibit atherosclerosis in long-term vein bypass grafts in moderately hypercholesterolemic nonhuman primates. (Boerboom LE, Olinger GN, Almassi GH, Skrinska VA) Circulation 1997 Aug 5;96(3):968-74 PMID: 9264508 08/05/1997
  • Single-channel and functional characteristics of a KCa channel in vascular muscle membranes of human saphenous veins. (Zhang H, Li P, Almassi GH, Nicolosi A, Olinger GN, Rusch NJ) J Cardiovasc Pharmacol 1996 Nov;28(5):611-7 PMID: 8945673 11/01/1996
  • Recognition of atrial and ventricular leads. (Gadhoke A, Roth JA, Almassi GH) Pacing Clin Electrophysiol 1996 Jul;19(7):1138-9 PMID: 8823847 07/01/1996
  • Mortality and neurologic morbidity after repair of traumatic aortic disruption. (Nocolosi AC, Almassi GH, Bousamra M 2nd, Haasler GB, Olinger GN) Ann Thorac Surg 1996 Mar;61(3):875-8 PMID: 8619709 03/01/1996
  • Endothelium and vascular smooth muscle function in internal mammary artery after cryopreservation. (Almassi GH, Farahbakhsh B, Wooldridge T, Rusch NJ, Olinger GN) J Surg Res 1996 Feb 1;60(2):355-60 PMID: 8598668 02/01/1996
  • Intraoperative epiaortic ultrasound during cardiac surgery. (Nicolosi AC, Aggarwal A, Almassi GH, Olinger GN) J Card Surg 1996 Jan-Feb;11(1):49-55 PMID: 8775335 01/01/1996
  • Combined valve replacement and coronary bypass grafting in osteogenesis imperfecta. (Almassi GH, Hughes GR, Bartlett J) Ann Thorac Surg 1995 Nov;60(5):1395-7 PMID: 8526633 11/01/1995
  • Reactivity of human saphenous veins at arterial perfusion pressures. (Rusch NJ, Wooldridge TA, Kulig CC, Almassi GH, Nicolosi AC, Olinger GN, Boerboom LE) J Thorac Cardiovasc Surg 1995 Oct;110(4 Pt 1):1005-12 PMID: 7475128 10/01/1995
  • Comparison of saphenous vein graft relaxation between Plasma-Lyte solution and normal saline solution. (Sanchez AM, Wooldridge TA, Boerboom LE, Olinger GN, Almassi GH, Rusch NJ) J Thorac Cardiovasc Surg 1994 Jun;107(6):1445-53 PMID: 8196386 06/01/1994
  • Spontaneous coronary artery embolus associated with calcific aortic stenosis. (Salka S, Almassi GH, Leitschuh ML) Chest 1994 Apr;105(4):1289-90 PMID: 8162777 04/01/1994
  • Cardiac tamponade secondary to giant lymph node hyperplasia (Castleman's disease) (Nicolosi AC, Almassi GH, Komorowski R) Chest 1994 Feb;105(2):637-9 PMID: 8306790 02/01/1994
  • Long-term complications of implantable cardioverter defibrillator lead systems. (Almassi GH, Olinger GN, Wetherbee JN, Fehl G) Ann Thorac Surg 1993 Apr;55(4):888-92 PMID: 8466344 04/01/1993
  • CT after reconstructive repair of the sternum and chest wall. (Maddern IR, Goodman LR, Almassi GH, Haasler GB, McManus RP, Olinger GN) Radiology 1993 Mar;186(3):665-70 PMID: 8430171 03/01/1993
  • Periaortic hematoma formation leading to aortic valve failure. A complication of homograft placement for second valve surgery. (Pochis WT, Cinquegrani MP, McManus RP, Almassi GH) Chest 1992 Oct;102(4):1299-301 PMID: 1395795 10/01/1992
  • Cryopreserved pulmonary homograft. (Almassi GH) J Card Surg 1992 Jun;7(2):192-3 PMID: 1606372 06/01/1992
  • Optimal lead positioning for postoperative atrial pacing. (Almassi GH, Wetherbee JN, Hoffmann RG, Olinger GN) Chest 1992 May;101(5):1194-6 PMID: 1582269 05/01/1992
  • Mediastinal involvement by myxoid liposarcoma. (McLean TR, Almassi GH, Hackbarth DA, Janjan NA, Potish RA) Ann Thorac Surg 1989 Jun;47(6):920-1 PMID: 2757450 06/01/1989
  • Chemical pleurodesis in the presence of persistent air leak. (Almassi GH, Haasler GB) Ann Thorac Surg 1989 May;47(5):786-7 PMID: 2730204 05/01/1989
  • Tunneling of defibrillator leads. (Almassi GH, Olinger GN) Ann Thorac Surg 1989 Mar;47(3):486 PMID: 2930319 03/01/1989
  • Long-term internal cardiac defibrillation threshold stability. (Wetherbee JN, Chapman PD, Troup PJ, Veseth-Rogers J, Thakur RK, Almassi GH, Olinger GN) Pacing Clin Electrophysiol 1989 Mar;12(3):443-50 PMID: 2466270 03/01/1989
  • Complications of automatic implantable cardioverter defibrillators: radiographic, CT, and echocardiographic evaluation. (Goodman LR, Almassi GH, Troup PJ, Gurney JW, Veseth-Rogers J, Chapman PD, Wetherbee JN) Radiology 1989 Feb;170(2):447-52 PMID: 2911667 02/01/1989
  • Stratified application of the automatic implantable cardioverter defibrillator. (Olinger GN, Chapman PD, Troup PJ, Almassi GH) J Thorac Cardiovasc Surg 1988 Jul;96(1):141-9 PMID: 3386288 07/01/1988
  • Delayed infection of the automatic implantable cardioverter-defibrillator. Current recognition and management. (Almassi GH, Olinger GN, Troup PJ, Chapman PD, Goodman LR) J Thorac Cardiovasc Surg 1988 May;95(5):908-11 PMID: 3361938 05/01/1988
  • Blood flow velocity of internal mammary artery and saphenous vein grafts to the coronary arteries. (Bandyk DF, Galbraith TA, Haasler GB, Almassi GH) J Surg Res 1988 Apr;44(4):342-51 PMID: 2966261 04/01/1988
  • Electrocautery for dissection of implantable defibrillator leads. (Almassi GH, Olinger GN) Ann Thorac Surg 1987 Nov;44(5):564 PMID: 3675064 11/01/1987
  • Constrictive pericarditis associated with patch electrodes of the automatic implantable cardioverter-defibrillator. (Almassi GH, Chapman PD, Troup PJ, Wetherbee JN, Olinger GN) Chest 1987 Aug;92(2):369-71 PMID: 3301224 08/01/1987
  • Coronary artery bypass grafting in chronic lymphocytic leukemia. (Almassi GH, Werner PH, Flemma RJ) Ann Thorac Surg 1987 May;43(5):574 PMID: 3495243 05/01/1987
  • A case of transdiaphragmatic wound of the heart repaired through the abdomen. (Parsa MH, Salami H, Almassi GH) Pahlavi Med J 1977 Apr;8(2):234-44 PMID: 887284 04/01/1977
  • Last update: 09/25/2015