137 results on '"R. Musselman"'
Search Results
52. Problems for Solution: E36-E41
- Author
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W. R. Ransom, Arthur Haas, Maud Willey, J. R. Musselman, B. H. Brown, and V. F. Ivanoff
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General Mathematics - Published
- 1933
- Full Text
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53. Problems for Solution: 3882-3887
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H. S. M. Coxeter, Victor Thebault, and J. R. Musselman
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Computer science ,General Mathematics - Published
- 1938
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54. E323
- Author
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J. R. Musselman and A. V. Richardson
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General Mathematics - Published
- 1939
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55. Problems for Solution: 3711-3716
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J. R. Musselman, H. J. Hamilton, J. H. M. Wedderburn, J. D. Hill, R. E. Gaines, J. M. Feld, and Harriet B. Herbert
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General Mathematics - Published
- 1934
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56. On Circles Connected with Three and Four Lines
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J. R. Musselman
- Subjects
Discrete mathematics ,General Mathematics ,Mathematics - Published
- 1937
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57. On a Triangle Connected with any Triangle
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J. R. Musselman
- Subjects
Combinatorics ,symbols.namesake ,Altitude (triangle) ,Medial triangle ,General Mathematics ,Isosceles triangle ,symbols ,Euler line ,Nine-point circle ,Integer triangle ,Right triangle ,Mathematics ,Incircle and excircles of a triangle - Published
- 1937
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58. On the Geometry of the Triangle
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J. R. Musselman
- Subjects
Physics ,symbols.namesake ,Medial triangle ,General Mathematics ,Isosceles triangle ,symbols ,Exterior angle theorem ,Schwarz triangle ,Geometry ,Sum of angles of a triangle ,Triangle group ,Integer triangle ,Euler's theorem in geometry - Published
- 1939
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59. The Principles of Financial and Statistical Mathematics
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J. R. Musselman and Maximilian Philip
- Subjects
Statistics and Probability ,Mathematics education ,Financial modeling ,Statistics, Probability and Uncertainty ,Mathematics - Published
- 1933
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60. Problems for Solution: 3858-3862
- Author
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Victor Thebault, J. R. Musselman, A. W. Tucker, and J. Rosenbaum
- Subjects
General Mathematics - Published
- 1938
- Full Text
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61. Problems for Solution: 3971-3974
- Author
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Victor Thebault, J. R. Musselman, and N. A. Court
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General Mathematics - Published
- 1940
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62. On Certain Types of Hexagons
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J. R. Musselman
- Subjects
Combinatorics ,Plane (geometry) ,General Mathematics ,Quartic function ,Polygon ,Root (chord) ,Point (geometry) ,Field (mathematics) ,Complex number ,Resolvent ,Mathematics - Abstract
1. The resolvent, VI= x0 +.EX, + . x1 -I2x2 +* + E1-x 1, where E is a primitive n-th root of uiity, was introduced by Lagrange 2 in his memoirs devoted to the fundamental principles of the solutions of the cubic and quartic equations. Its entrance, however, into the field of geometry is very recent. If we represent any point P in the plane by the single complex number p, and if Mk (k 0, 1, * , n 1) represents the n vertices of a positivelyordered polygon, then when the co6rdinates pA of these vertices are subject to one and only one condition, namely that
- Published
- 1935
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63. Problems for Solution: 3832-3840
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Victor Thebault, Don Wallace, H. P. Thielman, Emma Lehmer, Paul Erdös, and J. R. Musselman
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General Mathematics - Published
- 1937
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64. Parmi les Belles Figures de la Geometrie dans L'espace
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J. R. Musselman and Victor Thebault
- Subjects
General Mathematics - Published
- 1956
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65. The Planar Imprimitive Group of Order 216
- Author
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J. R. Musselman
- Subjects
Section (fiber bundle) ,Pure mathematics ,Ruler ,business.product_category ,Perspective (geometry) ,Planar ,Group (mathematics) ,General Mathematics ,Compass ,Order (group theory) ,Canonical form ,business ,Mathematics - Abstract
In a paper,* which discussed the imprimitive group of ordelr 5184 in S3, the existence of an imprimitive group of order 216 in S2 connected with the Hesse configurations was indicated. The purpose of this paper is to discuss this planar group and the geometry associated with it. Of special interest is a configuration of twelve triangles which possesses important properties. These are dealt with in Section II. In Section I is a study of four-fold perspective triangles. A new canonical form is used which leads to a ruler construction for them and to a compass construction for a Clebsch six-point. I. FOUR-FOLD PERSPECTIVE TRIANGLES.
- Published
- 1931
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66. Problems for Solution: 3820-3823
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R. Goormaghtigh, Paul Erdös, J. R. Musselman, and Victor Thebault
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General Mathematics ,Mathematics - Published
- 1937
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67. E68
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W. F. Cheney, Roy MacKay, and J. R. Musselman
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General Mathematics - Published
- 1934
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68. Problems for Solution: E333-E338
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Victor Thebault, C. W. Trigg, W. B. Campbell, J. H. Edmonston, J. R. Musselman, and O. E. Henry
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General Mathematics - Published
- 1938
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69. On an Imprimitive Group of Order 5184
- Author
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J. R. Musselman
- Subjects
Algebra ,Group (mathematics) ,General Mathematics ,Order (group theory) ,Mathematics - Published
- 1927
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70. Handbook of Statistical Nomographs, Tables and Formulas
- Author
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J. W. Dunlap, J. R. Musselman, and A. K. Kurtz
- Subjects
General Mathematics - Published
- 1933
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71. Problems for Solution: E521-E525
- Author
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N. A. Court, Victor Thebault, R. V. Heath, J. R. Musselman, and Maurice Kraitchik
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General Mathematics - Published
- 1942
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72. Problems for Solution: 3891-3895
- Author
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J. R. Musselman, George Rutledge, Walter Leighton, Victor Thebault, and Norman Anning
- Subjects
General Mathematics - Published
- 1938
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73. On a Geometrical Theorem
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J. R. Musselman
- Subjects
Pure mathematics ,Kelvin–Stokes theorem ,General Mathematics ,Fundamental theorem of calculus ,No-go theorem ,Divergence theorem ,Fixed-point theorem ,Danskin's theorem ,Brouwer fixed-point theorem ,Squeeze theorem ,Mathematics - Published
- 1957
- Full Text
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74. Problems for Solution: 4498-4502
- Author
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P. G. Federbush, J. R. Musselman, D. J. Newman, Karl Goldberg, and C. D. Olds
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General Mathematics - Published
- 1952
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75. Problems for Solution: 3927-3932
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J. R. Musselman, Victor Thebault, and M. M. Flood
- Subjects
General Mathematics - Published
- 1939
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76. Nomographie
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J. R. Musselman, M. Frechet, and H. Roullet
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General Mathematics - Published
- 1933
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77. Statistique Mathematique
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J. R. Musselman and Georges Darmois
- Subjects
Statistics and Probability ,Statistics, Probability and Uncertainty - Published
- 1928
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78. Problems for Solution: 4176-4180
- Author
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H. S. M. Coxeter, N. A. Court, P. R. Halmos, Victor Thebault, and J. R. Musselman
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General Mathematics - Published
- 1945
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79. Problems for Solution: 4056-4060
- Author
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Victor Thebault, R. P. Agnew, and J. R. Musselman
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General Mathematics - Published
- 1942
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80. On Certain Types of Polygons
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J. R. Musselman
- Subjects
Combinatorics ,General Mathematics - Published
- 1933
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81. Problems for Solution: 4128-4131
- Author
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Victor Thebault, J. R. Musselman, F. C. Gentry, and C. E. Springer
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General Mathematics - Published
- 1944
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82. On Four Lines and Their Associated Parabola
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J. R. Musselman
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General Mathematics ,010102 general mathematics ,0103 physical sciences ,Parabola ,Geometry ,010307 mathematical physics ,0101 mathematics ,01 natural sciences ,Mathematics - Published
- 1937
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83. On the McCay Cubic
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J. R. Musselman
- Subjects
General Mathematics ,Mathematics - Published
- 1936
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84. A Rectangular Hyperbola Theorem
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J. R. Musselman
- Subjects
General Mathematics ,Mathematical analysis ,Perpendicular ,Hyperbolic angle ,Geometry ,Unit hyperbola ,Hyperbola ,Mathematics - Published
- 1933
- Full Text
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85. An Introduction to College Geometry
- Author
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J. R. Musselman, E. H. Taylor, and G. C. Bartoo
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General Mathematics ,Geometry ,Psychology - Published
- 1950
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86. Modern Pure Solid Geometry
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J. R. Musselman and N. Altshiller-Court
- Subjects
General Mathematics - Published
- 1936
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87. E38
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J. R. Musselman and Lazarus Medveson
- Subjects
General Mathematics - Published
- 1933
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88. Problems for Solution: E321-E326
- Author
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J. R. Musselman, J. Rosenbaum, Victor Thebault, J. E. Trevor, W. F. Cheney, and W. W. Bigelow
- Subjects
General Mathematics - Published
- 1938
- Full Text
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89. E521
- Author
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J. R. Musselman and Howard Eves
- Subjects
General Mathematics - Published
- 1943
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90. Problems for Solution: 3909-3912
- Author
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E. T. Bell, J. R. Musselman, and Bela de Sz.
- Subjects
General Mathematics - Published
- 1939
- Full Text
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91. Problems for Solutions: 3807-3810
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J. R. Musselman, Don Wallace, N. A. Court, and Oystein Ore
- Subjects
General Mathematics - Published
- 1936
- Full Text
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92. A Correction by Professor Musselman
- Author
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J. R. Musselman
- Subjects
General Mathematics - Published
- 1939
- Full Text
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93. On Equilateral Triangles
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J. R. Musselman
- Subjects
Combinatorics ,General Mathematics ,Equilateral triangle - Published
- 1932
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94. Intermediate Calculus
- Author
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J. R. Musselman, Percey F. Smith, and William R. Longley
- Subjects
General Mathematics - Published
- 1932
- Full Text
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95. Problems for Solution: 3726-3730
- Author
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J. Rosenbaum, J. R. Musselman, Mannis Charosh, W. H. Rasche, and William Chisholm
- Subjects
General Mathematics - Published
- 1935
- Full Text
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96. Acid fog injures California crops
- Author
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R Musselman, P McCool, and J Sterrett
- Subjects
Agriculture - Abstract
The effect of acid rain on agricultural crops has been studied extensively in the past decade by plant scientists in the United States. Research has shown that agricultural crops can be injured as acidity in rain approaches pH 3. Since this level of acidity is rarely reached in normal rainfall in California, acid rain had been thought to be of little or no consequence to agriculture in this state.
- Published
- 1988
97. Determining crop yield losses from air pollutants
- Author
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P McCool, R Musselman, R Teso, and R Oshima
- Subjects
Agriculture - Abstract
Measurements in field chambers reveal losses to pollution
- Published
- 1986
98. 2023 Canadian Surgery Forum: Sept. 20-23, 2023.
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Brière R, Émond M, Benhamed A, Blanchard PG, Drolet S, Habashi R, Golbon B, Shellenberger J, Pasternak J, Merchant S, Shellenberger J, La J, Sawhney M, Brogly S, Cadili L, Horkoff M, Ainslie S, Demetrick J, Chai B, Wiseman K, Hwang H, Alhumoud Z, Salem A, Lau R, Aw K, Nessim C, Gawad N, Alibhai K, Towaij C, Doan D, Raîche I, Valji R, Turner S, Balmes PN, Hwang H, Hameed SM, Tan JGK, Wijesuriya R, Tan JGK, Hew NLC, Wijesuriya R, Lund M, Hawel J, Gregor J, Leslie K, Lenet T, McIsaac D, Hallet J, Jerath A, Lalu M, Nicholls S, Presseau J, Tinmouth A, Verret M, Wherrett C, Fergusson D, Martel G, Sharma S, McKechnie T, Talwar G, Patel J, Heimann L, Doumouras A, Hong D, Eskicioglu C, Wang C, Guo M, Huang L, Sun S, Davis N, Wang J, Skulsky S, Sikora L, Raîche I, Son HJ, Gee D, Gomez D, Jung J, Selvam R, Seguin N, Zhang L, Lacaille-Ranger A, Sikora L, McIsaac D, Moloo H, Follett A, Holly, Organ M, Pace D, Balvardi S, Kaneva P, Semsar-Kazerooni K, Mueller C, Vassiliou M, Al Mahroos M, Fiore JF Jr, Schwartzman K, Feldman L, Guo M, Karimuddin A, Liu GP, Crump T, Sutherland J, Hickey K, Bonisteel EM, Umali J, Dogar I, Warden G, Boone D, Mathieson A, Hogan M, Pace D, Seguin N, Moloo H, Li Y, Best G, Leong R, Wiseman S, Alaoui AA, Hajjar R, Wassef E, Metellus DS, Dagbert F, Loungnarath R, Ratelle R, Schwenter F, Debroux É, Wassef R, Gagnon-Konamna M, Pomp A, Richard CS, Sebajang H, Alaoui AA, Hajjar R, Dagbert F, Loungnarath R, Sebajang H, Ratelle R, Schwenter F, Debroux É, Wassef R, Gagnon-Konamna M, Pomp A, Santos MM, Richard CS, Shi G, Leung R, Lim C, Knowles S, Parmar S, Wang C, Debru E, Mohamed F, Anakin M, Lee Y, Samarasinghe Y, Khamar J, Petrisor B, McKechnie T, Eskicioglu C, Yang I, Mughal HN, Bhugio M, Gok MA, Khan UA, Fernandes AR, Spence R, Porter G, Hoogerboord CM, Neumann K, Pillar M, Guo M, Manhas N, Melck A, Kazi T, McKechnie T, Jessani G, Heimann L, Lee Y, Hong D, Eskicioglu C, McKechnie T, Tessier L, Archer V, Park L, Cohen D, Parpia S, Bhandari M, Dionne J, Eskicioglu C, Bolin S, Afford R, Armstrong M, Karimuddin A, Leung R, Shi G, Lim C, Grant A, Van Koughnett JA, Knowles S, Clement E, Lange C, Roshan A, Karimuddin A, Scott T, Nadeau K, Macmillan J, Wilson J, Deschenes M, Nurullah A, Cahill C, Chen VH, Patterson KM, Wiseman SM, Wen B, Bhudial J, Barton A, Lie J, Park CM, Yang L, Gouskova N, Kim DH, Afford R, Bolin S, Morris-Janzen D, McLellan A, Karimuddin A, Archer V, Cloutier Z, Berg A, McKechnie T, Wiercioch W, Eskicioglu C, Labonté J, Bisson P, Bégin A, Cheng-Oviedo SG, Collin Y, Fernandes AR, Hossain I, Ellsmere J, El-Kefraoui C, Do U, Miller A, Kouyoumdjian A, Cui D, Khorasani E, Landry T, Amar-Zifkin A, Lee L, Feldman L, Fiore J, Au TM, Oppenheimer M, Logsetty S, AlShammari R, AlAbri M, Karimuddin A, Brown C, Raval MJ, Phang PT, Bird S, Baig Z, Abu-Omar N, Gill D, Suresh S, Ginther N, Karpinski M, Ghuman A, Malik PRA, Alibhai K, Zabolotniuk T, Raîche I, Gawad N, Mashal S, Boulanger N, Watt L, Razek T, Fata P, Grushka J, Wong EG, Hossain I, Landry M, Mackey S, Fairbridge N, Greene A, Borgoankar M, Kim C, DeCarvalho D, Pace D, Wigen R, Walser E, Davidson J, Dorward M, Muszynski L, Dann C, Seemann N, Lam J, Harding K, Lowik AJ, Guinard C, Wiseman S, Ma O, Mocanu V, Lin A, Karmali S, Bigam D, Harding K, Greaves G, Parker B, Nguyen V, Ahmed A, Yee B, Perren J, Norman M, Grey M, Perini R, Jowhari F, Bak A, Drung J, Allen L, Wiseman D, Moffat B, Lee JKH, McGuire C, Raîche I, Tudorache M, Gawad N, Park LJ, Borges FK, Nenshi R, Jacka M, Heels-Ansdell D, Simunovic M, Bogach J, Serrano PE, Thabane L, Devereaux PJ, Farooq S, Lester E, Kung J, Bradley N, Best G, Ahn S, Zhang L, Prince N, Cheng-Boivin O, Seguin N, Wang H, Quartermain L, Tan S, Shamess J, Simard M, Vigil H, Raîche I, Hanna M, Moloo H, Azam R, Ko G, Zhu M, Raveendran Y, Lam C, Tang J, Bajwa A, Englesakis M, Reel E, Cleland J, Snell L, Lorello G, Cil T, Ahn HS, Dube C, McIsaac D, Smith D, Leclerc A, Shamess J, Rostom A, Calo N, Thavorn K, Moloo H, Laplante S, Liu L, Khan N, Okrainec A, Ma O, Lin A, Mocanu V, Karmali S, Bigam D, Bruyninx G, Georgescu I, Khokhotva V, Talwar G, Sharma S, McKechnie T, Yang S, Khamar J, Hong D, Doumouras A, Eskicioglu C, Spoyalo K, Rebello TA, Chhipi-Shrestha G, Mayson K, Sadiq R, Hewage K, MacNeill A, Muncner S, Li MY, Mihajlovic I, Dykstra M, Snelgrove R, Wang H, Schweitzer C, Wiseman SM, Garcha I, Jogiat U, Baracos V, Turner SR, Eurich D, Filafilo H, Rouhi A, Bédard A, Bédard ELR, Patel YS, Alaichi JA, Agzarian J, Hanna WC, Patel YS, Alaichi JA, Provost E, Shayegan B, Adili A, Hanna WC, Mistry N, Gatti AA, Patel YS, Farrokhyar F, Xie F, Hanna WC, Sullivan KA, Farrokhyar F, Patel YS, Liberman M, Turner SR, Gonzalez AV, Nayak R, Yasufuku K, Hanna WC, Mistry N, Gatti AA, Patel YS, Cross S, Farrokhyar F, Xie F, Hanna WC, Haché PL, Galvaing G, Simard S, Grégoire J, Bussières J, Lacasse Y, Sassi S, Champagne C, Laliberté AS, Jeong JY, Jogiat U, Wilson H, Bédard A, Blakely P, Dang J, Sun W, Karmali S, Bédard ELR, Wong C, Hakim SY, Azizi S, El-Menyar A, Rizoli S, Al-Thani H, Fernandes AR, French D, Li C, Ellsmere J, Gossen S, French D, Bailey J, Tibbo P, Crocker C, Bondzi-Simpson A, Ribeiro T, Kidane B, Ko M, Coburn N, Kulkarni G, Hallet J, Ramzee AF, Afifi I, Alani M, El-Menyar A, Rizoli S, Al-Thani H, Chughtai T, Huo B, Manos D, Xu Z, Kontouli KM, Chun S, Fris J, Wallace AMR, French DG, Giffin C, Liberman M, Dayan G, Laliberté AS, Yasufuku K, Farivar A, Kidane B, Weessies C, Robinson M, Bednarek L, Buduhan G, Liu R, Tan L, Srinathan SK, Kidane B, Nasralla A, Safieddine N, Gazala S, Simone C, Ahmadi N, Hilzenrat R, Blitz M, Deen S, Humer M, Jugnauth A, Buduhan G, Kerr L, Sun S, Browne I, Patel Y, Hanna W, Loshusan B, Shamsil A, Naish MD, Qiabi M, Nayak R, Patel R, Malthaner R, Pooja P, Roberto R, Greg H, Daniel F, Huynh C, Sharma S, Vieira A, Jain F, Lee Y, Mousa-Doust D, Costa J, Mezei M, Chapman K, Briemberg H, Jack K, Grant K, Choi J, Yee J, McGuire AL, Abdul SA, Khazoom F, Aw K, Lau R, Gilbert S, Sundaresan S, Jones D, Seely AJE, Villeneuve PJ, Maziak DE, Pigeon CA, Frigault J, Drolet S, Roy ÈM, Bujold-Pitre K, Courval V, Tessier L, McKechnie T, Lee Y, Park L, Gangam N, Eskicioglu C, Cloutier Z, McKechnie T (McMaster University), Archer V, Park L, Lee J, Patel A, Hong D, Eskicioglu C, Ichhpuniani S, McKechnie T, Elder G, Chen A, Logie K, Doumouras A, Hong D, Benko R, Eskicioglu C, Castelo M, Paszat L, Hansen B, Scheer A, Faught N, Nguyen L, Baxter N, Sharma S, McKechnie T, Khamar J, Wu K, Eskicioglu C, McKechnie T, Khamar J, Lee Y, Tessier L, Passos E, Doumouras A, Hong D, Eskicioglu C, McKechnie T, Khamar J, Sachdeva A, Lee Y, Hong D, Eskicioglu C, Fei LYN, Caycedo A, Patel S, Popa T, Boudreau L, Grin A, Wang T, Lie J, Karimuddin A, Brown C, Phang T, Raval M, Ghuman A, Candy S, Nanda K, Li C, Snelgrove R, Dykstra M, Kroeker K, Wang H, Roy H, Helewa RM, Johnson G, Singh H, Hyun E, Moffatt D, Vergis A, Balmes P, Phang T, Guo M, Liu J, Roy H, Webber S, Shariff F, Helewa RM, Hochman D, Park J, Johnson G, Hyun E, Robitaille S, Wang A, Maalouf M, Alali N, Elhaj H, Liberman S, Charlebois P, Stein B, Feldman L, Fiore JF Jr, Lee L, Hu R, Lacaille-Ranger A, Ahn S, Tudorache M, Moloo H, Williams L, Raîche I, Musselman R, Lemke M, Allen L, Samarasinghe N, Vogt K, Brackstone M, Zwiep T, Clement E, Lange C, Alam A, Ghuman A, Karimuddin A, Phang T, Raval M, Brown C, Clement E, Liu J, Ghuman A, Karimuddin A, Phang T, Raval M, Brown C, Mughal HN, Gok MA, Khan UA, Mughal HN, Gok MA, Khan UA, Mughal HN, Gok MA, Khan UA, Mughal HN, Gok MA, Khan UA, James N, Zwiep T, Van Koughnett JA, Laczko D, McKechnie T, Yang S, Wu K, Sharma S, Lee Y, Park L, Doumouras A, Hong D, Parpia S, Bhandari M, Eskicioglu C, McKechnie T, Tessier L, Lee S, Kazi T, Sritharan P, Lee Y, Doumouras A, Hong D, Eskicioglu C, McKechnie T, Lee Y, Hong D, Dionne J, Doumouras A, Parpia S, Bhandari M, Eskicioglu C, Hershorn O, Ghuman A, Karimuddin A, Brown C, Raval M, Phang PT, Chen A, Boutros M, Caminsky N, Dumitra T, Faris-Sabboobeh S, Demian M, Rigas G, Monton O, Smith A, Moon J, Demian M, Garfinkle R, Vasilevsky CA, Rajabiyazdi F, Boutros M, Courage E, LeBlanc D, Benesch M, Hickey K, Hartwig K, Armstrong C, Engelbrecht R, Fagan M, Borgaonkar M, Pace D, Shanahan J, Moon J, Salama E, Wang A, Arsenault M, Leon N, Loiselle C, Rajabiyazdi F, Boutros M, Brennan K, Rai M, Farooq A, McClintock C, Kong W, Patel S, Boukhili N, Caminsky N, Faris-Sabboobeh S, Demian M, Boutros M, Paradis T, Robitaille S, Dumitra T, Liberman AS, Charlebois P, Stein B, Fiore JF Jr, Feldman LS, Lee L, Zwiep T, Abner D, Alam T, Beyer E, Evans M, Hill M, Johnston D, Lohnes K, Menard S, Pitcher N, Sair K, Smith B, Yarjau B, LeBlanc K, Samarasinghe N, Karimuddin AA, Brown CJ, Phang PT, Raval MJ, MacDonell K, Ghuman A, Harvey A, Phang PT, Karimuddin A, Brown CJ, Raval MJ, Ghuman A, Hershorn O, Ghuman A, Karimuddin A, Raval M, Phang PT, Brown C, Logie K, Mckechnie T, Lee Y, Hong D, Eskicioglu C, Matta M, Baker L, Hopkins J, Rochon R, Buie D, MacLean A, Ghuman A, Park J, Karimuddin AA, Phang PT, Raval MJ, Brown CJ, Farooq A, Ghuman A, Patel S, Macdonald H, Karimuddin A, Raval M, Phang PT, Brown C, Wiseman V, Brennan K, Patel S, Farooq A, Merchant S, Kong W, McClintock C, Booth C, Hann T, Ricci A, Patel S, Brennan K, Wiseman V, McClintock C, Kong W, Farooq A, Kakkar R, Hershorn O, Raval M, Phang PT, Karimuddin A, Ghuman A, Brown C, Wiseman V, Farooq A, Patel S, Hajjar R, Gonzalez E, Fragoso G, Oliero M, Alaoui AA, Rendos HV, Djediai S, Cuisiniere T, Laplante P, Gerkins C, Ajayi AS, Diop K, Taleb N, Thérien S, Schampaert F, Alratrout H, Dagbert F, Loungnarath R, Sebajang H, Schwenter F, Wassef R, Ratelle R, Debroux É, Cailhier JF, Routy B, Annabi B, Brereton NJB, Richard C, Santos MM, Gimon T, MacRae H, de Buck van Overstraeten A, Brar M, Chadi S, Kennedy E, Baker L, Hopkins J, Rochon R, Buie D, MacLean A, Park LJ, Archer V, McKechnie T, Lee Y, McIsaac D, Rashanov P, Eskicioglu C, Moloo H, Devereaux PJ, Alsayari R, McKechnie T, Ichhpuniani S, Lee Y, Eskicioglu C, Hajjar R, Oliero M, Fragoso G, Ajayi AS, Alaoui AA, Rendos HV, Calvé A, Cuisinière T, Gerkins C, Thérien S, Taleb N, Dagbert F, Sebajang H, Loungnarath R, Schwenter F, Ratelle R, Wassef R, Debroux E, Richard C, Santos MM, Kennedy E, Simunovic M, Schmocker S, Brown C, MacLean A, Liberman S, Drolet S, Neumann K, Stotland P, Jhaveri K, Kirsch R, Alnajem H, Alibrahim H, Giundi C, Chen A, Rigas G, Munir H, Safar A, Sabboobeh S, Holland J, Boutros M, Kennedy E, Richard C, Simunovic M, Schmocker S, Brown C, MacLean A, Liberman S, Drolet S, Neumann K, Stotland P, Jhaveri K, Kirsch R, Bruyninx G, Gill D, Alsayari R, McKechnie T, Lee Y, Hong D, Eskicioglu C, Zhang L, Abtahi S, Chhor A, Best G, Raîche I, Musselman R, Williams L, Moloo H, Caminsky NG, Moon JJ, Marinescu D, Pang A, Vasilevsky CA, Boutros M, Al-Abri M, Gee E, Karimuddin A, Phang PT, Brown C, Raval M, Ghuman A, Morena N, Ben-Zvi L, Hayman V, Hou M (University of Calgary), Nguyen D, Rentschler CA, Meguerditchian AN, Mir Z, Fei L, McKeown S, Dinchong R, Cofie N, Dalgarno N, Cheifetz R, Merchant S, Jaffer A, Cullinane C, Feeney G, Jalali A, Merrigan A, Baban C, Buckley J, Tormey S, Benesch M, Wu R, Takabe K, Benesch M, O'Brien S, Kazazian K, Abdalaty AH, Brezden C, Burkes R, Chen E, Govindarajan A, Jang R, Kennedy E, Lukovic J, Mesci A, Quereshy F, Swallow C, Chadi S, Habashi R, Pasternak J, Marini W, Zheng W, Murakami K, Ohashi P, Reedijk M, Hu R, Ivankovic V, Han L, Gresham L, Mallick R, Auer R, Ribeiro T, Bondzi-Simpson A, Coburn N, Hallet J, Cil T, Fontebasso A, Lee A, Bernard-Bedard E, Wong B, Li H, Grose E, Brandts-Longtin O, Aw K, Lau R, Abed A, Stevenson J, Sheikh R, Chen R, Johnson-Obaseki S, Nessim C, Hennessey RL, Meneghetti AT, Bildersheim M, Bouchard-Fortier A, Nelson G, Mack L, Ghasemi F, Naeini MM, Parsyan A, Kaur Y, Covelli A, Quereshy F, Elimova E, Panov E, Lukovic J, Brierley J, Burnett B, Swallow C, Eom A, Kirkwood D, Hodgson N, Doumouras A, Bogach J, Whelan T, Levine M, Parvez E, Ng D, Kazazian K, Lee K, Lu YQ, Kim DK, Magalhaes M, Grigor E, Arnaout A, Zhang J, Yee EK, Hallet J, Look Hong NJ, Nguyen L, Coburn N, Wright FC, Gandhi S, Jerzak KJ, Eisen A, Roberts A, Ben Lustig D, Quan ML, Phan T, Bouchard-Fortier A, Cao J, Bayley C, Watanabe A, Yao S, Prisman E, Groot G, Mitmaker E, Walker R, Wu J, Pasternak J, Lai CK, Eskander A, Wasserman J, Mercier F, Roth K, Gill S, Villamil C, Goldstein D, Munro V, Pathak A (University of Manitoba), Lee D, Nguyen A, Wiseman S, Rajendran L, Claasen M, Ivanics T, Selzner N, McGilvray I, Cattral M, Ghanekar A, Moulton CA, Reichman T, Shwaartz C, Metser U, Burkes R, Winter E, Gallinger S, Sapisochin G, Glinka J, Waugh E, Leslie K, Skaro A, Tang E, Glinka J, Charbonneau J, Brind'Amour A, Turgeon AF, O'Connor S, Couture T, Wang Y, Yoshino O, Driedger M, Beckman M, Vrochides D, Martinie J, Alabduljabbar A, Aali M, Lightfoot C, Gala-Lopez B, Labelle M, D'Aragon F, Collin Y, Hirpara D, Irish J, Rashid M, Martin T, Zhu A, McKnight L, Hunter A, Jayaraman S, Wei A, Coburn N, Wright F, Mallette K, Elnahas A, Alkhamesi N, Schlachta C, Hawel J, Tang E, Punnen S, Zhong J, Yang Y, Streith L, Yu J, Chung S, Kim P, Chartier-Plante S, Segedi M, Bleszynski M, White M, Tsang ME, Jayaraman S, Lam-Tin-Cheung K, Jayaraman S, Tsang M, Greene B, Pouramin P, Allen S, Evan Nelson D, Walsh M, Côté J, Rebolledo R, Borie M, Menaouar A, Landry C, Plasse M, Létourneau R, Dagenais M, Rong Z, Roy A, Beaudry-Simoneau E, Vandenbroucke-Menu F, Lapointe R, Ferraro P, Sarkissian S, Noiseux N, Turcotte S, Haddad Y, Bernard A, Lafortune C, Brassard N, Roy A, Perreault C, Mayer G, Marcinkiewicz M, Mbikay M, Chrétien M, Turcotte S, Waugh E, Sinclair L, Glinka J, Shin E, Engelage C, Tang E, Skaro A, Muaddi H, Flemming J, Hansen B, Dawson L, O'Kane G, Feld J, Sapisochin G, Zhu A, Jayaraman S, Cleary S, Hamel A, Pigeon CA, Marcoux C, Ngo TP, Deshaies I, Mansouri S, Amhis N, Léveillé M, Lawson C, Achard C, Ilkow C, Collin Y, Tai LH, Park L, Griffiths C, D'Souza D, Rodriguez F, McKechnie T, Serrano PE, Hennessey RL, Yang Y, Meneghetti AT, Panton ONM, Chiu CJ, Henao O, Netto FS, Mainprize M, Hennessey RL, Chiu CJ, Hennessey RL, Chiu CJ, Jatana S, Verhoeff K, Mocanu V, Jogiat U, Birch D, Karmali S, Switzer N, Hetherington A, Verhoeff K, Mocanu V, Birch D, Karmali S, Switzer N, Safar A, Al-Ghaithi N, Vourtzoumis P, Demyttenaere S, Court O, Andalib A, Wilson H, Verhoeff K, Dang J, Kung J, Switzer N, Birch D, Madsen K, Karmali S, Mocanu V, Wu T, He W, Vergis A, Hardy K, Zmudzinski M, Daenick F, Linton J, Zmudzinski M, Fowler-Woods M, He W, Fowler-Woods A, Shingoose G, Vergis A, Hardy K, Lee Y, Doumouras A, Molnar A, Nguyen F, Hong D, Schneider R, Fecso AB, Sharma P, Maeda A, Jackson T, Okrainec A, McLean C, Mocanu V, Birch D, Karmali S, Switzer N, MacVicar S, Dang J, Mocanu V, Verhoeff K, Jogiat U, Karmali S, Birch D, Switzer N, McLennan S, Verhoeff K, Purich K, Dang J, Kung J, Mocanu V, McLennan S, Verhoeff K, Mocanu V, Jogiat U, Birch DW, Karmali S, Switzer NJ, Jeffery L, Hwang H, Ryley A, Schellenberg M, Owattanapanich N, Emigh B, Nichols C, Dilday J, Ugarte C, Onogawa A, Matsushima K, Martin MJ, Inaba K, Schellenberg M, Emigh B, Nichols C, Dilday J, Ugarte C, Onogawa A, Shapiro D, Im D, Inaba K, Schellenberg M, Owattanapanich N, Ugarte C, Lam L, Martin MJ, Inaba K, Rezende-Neto J, Patel S, Zhang L, Mir Z, Lemke M, Leeper W, Allen L, Walser E, Vogt K, Ribeiro T, Bateni S, Bondzi-Simpson A, Coburn N, Hallet J, Barabash V, Barr A, Chan W, Hakim SY, El-Menyar A, Rizoli S, Al-Thani H, Mughal HN, Bhugio M, Gok MA, Khan UA, Warraich A, Gillman L, Ziesmann M, Momic J, Yassin N, Kim M, Makish A, Walser E, Smith S, Ball I, Moffat B, Parry N, Vogt K, Lee A, Kroeker J, Evans D, Fansia N, Notik C, Wong EG, Coyle G, Seben D, Smith J, Tanenbaum B, Freedman C, Nathens A, Fowler R, Patel P, Elrick T, Ewing M, Di Marco S, Razek T, Grushka J, Wong EG, Park LJ, Borges FK, Nenshi R, Serrano PE, Engels P, Vogt K, Di Sante E, Vincent J, Tsiplova K, Devereaux PJ, Talwar G, Dionne J, McKechnie T, Lee Y, Kazi T, El-Sayes A, Bogach J, Hong D, Eskicioglu C, Connell M, Klooster A, Beck J, Verhoeff K, Strickland M, Anantha R, Groszman L, Caminsky NG, Watt L, Boulanger N, Razek T, Grushka J, Di Marco S, Wong EG, Livergant R, McDonald B, Binda C, Luthra S, Ebert N, Falk R, and Joos E
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- 2023
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99. Neoadjuvant Chemotherapy, Excision, and Observation for Early Rectal Cancer: The Phase II NEO Trial (CCTG CO.28) Primary End Point Results.
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Kennecke HF, O'Callaghan CJ, Loree JM, Moloo H, Auer R, Jonker DJ, Raval M, Musselman R, Ma G, Caycedo-Marulanda A, Simianu VV, Patel S, Pitre LD, Helewa R, Gordon VL, Neumann K, Nimeiri H, Sherry M, Tu D, and Brown CJ
- Subjects
- Humans, Oxaliplatin therapeutic use, Quality of Life, Neoplasm Staging, Neoplasm Recurrence, Local drug therapy, Antineoplastic Combined Chemotherapy Protocols adverse effects, Treatment Outcome, Neoadjuvant Therapy, Rectal Neoplasms drug therapy, Rectal Neoplasms surgery
- Abstract
Purpose: Organ-sparing therapy for early-stage I/IIA rectal cancer is intended to avoid functional disturbances or a permanent ostomy associated with total mesorectal excision (TME). The objective of this phase II trial was to determine the outcomes and organ-sparing rate of patients with early-stage rectal cancer treated with neoadjuvant chemotherapy followed by transanal excision surgery (TES)., Methods: This phase II trial included patients with clinical T1-T3abN0 low- or mid-rectal adenocarcinoma eligible for endoscopic resection who were treated with 3 months of chemotherapy (modified folinic acid-fluorouracil-oxaliplatin 6 or capecitabine-oxaliplatin). Those with evidence of response proceeded to transanal endoscopic surgery 2-6 weeks later. The primary end point was protocol-specified organ preservation rate, defined as the proportion of patients with tumor downstaging to ypT0/T1N0/X and who avoided radical surgery., Results: Of 58 patients enrolled, all commenced chemotherapy and 56 proceeded to surgery. A total of 33/58 patients had tumor downstaging to ypT0/1N0/X on the surgery specimen, resulting in an intention-to-treat protocol-specified organ preservation rate of 57% (90% CI, 45 to 68). Of 23 remaining patients recommended for TME surgery on the basis of protocol requirements, 13 declined and elected to proceed directly to observation resulting in 79% (90% CI, 69 to 88) achieving organ preservation. The remaining 10/23 patients proceeded to recommended TME of whom seven had no histopathologic residual disease. The 1-year and 2-year locoregional relapse-free survival was, respectively, 98% (95% CI, 86 to 100) and 90% (95% CI, 58 to 98), and there were no distant recurrences or deaths. Minimal change in quality of life and rectal function scores was observed., Conclusion: Three months of induction chemotherapy may successfully downstage a significant proportion of patients with early-stage rectal cancer, allowing well-tolerated organ-preserving surgery.
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- 2023
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100. Outcomes of Patients Undergoing Elective Bowel Resection Before and After Implementation of an Anemia Screening and Treatment Program.
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Gilbert RWD, Zwiep T, Greenberg J, Lenet T, Touchie DL, Perelman I, Musselman R, Williams L, Raiche I, McIsaac DI, Thavorn K, Fergusson D, and Moloo H
- Subjects
- Adult, Elective Surgical Procedures adverse effects, Humans, Postoperative Complications surgery, Prospective Studies, Retrospective Studies, Proctectomy, Rectal Neoplasms surgery
- Abstract
Background: Patients with anemia undergoing elective colorectal cancer surgery are known to have significantly higher rates of postoperative complications and worse outcomes., Objective: This study aimed to improve rates of anemia screening and treatment in patients undergoing elective colon and rectal resections through a quality improvement initiative., Design: We compared a historical cohort of patients before implementation of our anemia screening and treatment quality improvement program to a prospective cohort after implementation., Settings: This study was conducted at a tertiary care hospital., Patients: This study included all adult patients with a new diagnosis of colon or rectal cancer without evidence of metastatic disease between 2017 and 2019., Interventions: The interventions include the anemia screening and treatment quality improvement program., Main Outcome Measures: The primary outcome was hospital cost per admission., Results: This study includes a total of 84 patients who underwent elective colon or rectal resection before implementation of our anemia quality improvement project and 88 patients who underwent surgery after. In the preimplementation cohort 44 of 84 patients (55.9%) were anemic compared to 47 of 99 patients (54.7%) in the postimplementation cohort. Rates of screening (25%-86.4%) and treatment (27.8%- 63.8%) were significantly increased in the postimplementation cohort. Mean total cost per admission was significantly decreased in the postimplementation cohort (mean cost $16,827 vs $25,796; p = 0.004); this significant reduction was observed even after adjusting for relevant confounding factors (ratio of means: 0.74; 95% CI, 0.65-0.85). The mechanistic link between treatment of anemia and reductions in cost remains unknown. No significant difference was found in rates of blood transfusion, complications, or mortality between the groups., Limitations: The study limitation includes before-after design subjected to selection and temporal biases., Conclusions: We demonstrate the successful implementation of an anemia screening and treatment program. This program was associated with significantly reduced cost per admission. This work demonstrates possible value and benefits of implementation of an anemia screening and treatment program. See Video Abstract at http://links.lww.com/DCR/C15 .RESULTADOS DE LOS PACIENTES SOMETIDOS A RESECCIÓN INTESTINAL ELECTIVA ANTES Y DESPUÉS DE LA IMPLEMENTACIÓN DE UN PROGRAMA DE DETECCIÓN Y TRATAMIENTO DE ANEMIA., Antecedentes: Se sabe que los pacientes anémicos que se someten a una cirugía electiva de cáncer colorrectal tienen tasas significativamente más altas de complicaciones posoperatorias y peores resultados., Objetivo: Mejorar las tasas de detección y tratamiento de la anemia en pacientes sometidos a resecciones electivas de colon y recto a través de una iniciativa de mejora de calidad., Diseo: Comparamos una cohorte histórica de pacientes antes de la implementación de nuestro programa de detección de anemia y mejora de la calidad del tratamiento con una cohorte prospectiva después de la implementación., Entorno Clinico: Hospital de atención terciaria., Pacientes: Todos los pacientes adultos con un nuevo diagnóstico de cáncer de colon o recto sin evidencia de enfermedad metastásica entre 2017 y 2019., Intervenciones: Detección de anemia y programa de mejora de la calidad del tratamiento., Principales Medidas De Resultado: El resultado primario fue el costo hospitalario por ingreso., Resultados: Un total de 84 pacientes se sometieron a resección electiva de colon o recto antes de la implementación de nuestro proyecto de mejora de calidad de la anemia y 88 pacientes se sometieron a cirugía después. En la cohorte previa a la implementación, 44/84 (55,9 %) presentaban anemia en comparación con 47/99 (54,7 %) en la cohorte posterior a la implementación. Las tasas de detección (25 % a 86,4 %) y tratamiento (27,8 % a 63,8 %) aumentaron significativamente en la cohorte posterior a la implementación. El costo total medio por admisión se redujo significativamente en la cohorte posterior a la implementación (costo medio $16 827 vs. $25 796, p = 0,004); esta reducción significativa se observó incluso después de ajustar los factores de confusión relevantes (proporción de medias: 0,74, IC del 95 %: 0,65 a 0,85). El vínculo mecánico entre el tratamiento de la anemia y la reducción de costos sigue siendo desconocido. No hubo diferencias significativas en las tasas de transfusión de sangre, complicaciones o mortalidad entre los grupos., Limitaciones: El diseño de antes y después está sujeto a sesgos temporales y de selección., Conclusiones: Demostramos la implementación exitosa de un programa de detección y tratamiento de anemia. Este programa se asoció con un costo por admisión significativamente reducido. Este trabajo demuestra el valor y los beneficios posibles de la implementación de un programa de detección y tratamiento de la anemia. Consulte Video Resumen en http://links.lww.com/DCR/C15 . (Traducción- Dr. Francisco M. Abarca-Rendon )., (Copyright © The ASCRS 2022.)
- Published
- 2022
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