ANALYSIS J)F .ABDOMINAL CASUALTIES THAT COMPLETED OPERATION IN CANADIAN ADVANCED SURGICAL CENTRES IN ITALY (l Dec 44 => 15 Jan 45)o W Captain J0Bo Armstrong;, R0GoA0MoCo lo introduction A previous report from this laboratory (l), on 179 abdominal cases, recorded a high incidence of death within 24 hours after operation, and em~ phasised the importance of early postoperative resuscitation,, Another re° port on 64.O abdominal and abdominothoracic wounds (2), records an even higher incidence of death within the first 24 hours post°operatively„ The present report is an analysis of all abdominal casualties, operated upon in the Advanced Surgical Centres of the First Canadian Corps„ 1 Dec 44- to 15 Jan 45o An abdominal casualty has been taken as one in which the peritoneum has been pierced by a missile in the woundinge Thus explorative laparotomies that prove negative are not considered0 Likewise, posterior penetrating wounds, producing retro=peritoneal haeraatomata and possible kidney damage have not been included unless a nephrectomy was done. The analysis of these cases has been made on the basis of the ing factorsg (a) Mortalityg (i) simple abdominal wounds, i060 those with no other signifi= cant wounds other than in the abdomen, Cii) complicated abdominal wounds, i0ec those in which there are other serious wounds of the chest or extremities in addition to the abdominal lesions0 (b) Wounding to Admisslong u) time «=> the time that elapsed from time of wounding to admission to the Advanced Surgical Centre, (ii) fluids ® the fluids administered within this period,, Report submitted to the Associate Committee on Array Medical National Research Council of Canada9 on 25 March 19459 by No„ 1 Research Unitp RoC'oAcMoCo 1* Analysis of Abdominal Casualties in Canadian Advanced Surgical Units AoAoIo (23 Aug to 30 Sep M) = Lt. Col, A.L, CHUTE, O.B.E. 2a Statistical Report on 640 fettle Casualties operated on in the Forward Area CoMoFo for Abdominal and Abdominothoracic Wounds<,”(l Jan to 30 Jun 44) - feigo HoC0 Edwards* Consulting Surgeon A0FoHcQ«> 2 (c) Resuscitation (pre-operative) (i) time ■= the time spent in the resuscitation wards of the Advanced Surgical Centres0 (ii) fluids •=• the fluids administered in these resuscitation wards 0 (d) Resuscitation (2U hours postoperative) the fluids administered within this period. In addition an attempt has been made to assess the actual blood loss of a small group of simple and complicated abdominal wounds, by means of pre- operative blood volume estimations, and to gain thereby some knowledge of the fluid requirements of these patients0 20 FINDINGS (a) Mortality There are 90 abdominal cases in the present series operated upon by 5 surgical teams in the Advanced Surgical Centres of the First Canadian Corps, ABDOMINAL CASUALTIES TABLE I Postoperative Mortality Figures Founds Cases Total Deaths 24 Hour Deaths Simple 49 17 (35%) 4 Complicated _n_ 19 U6%) B Totals 90 WUMT 22\ t Thirty°six of these 90 cases died in the forward areas*, a total post operative mortality of 0 Of the deaths*. 12 occurred within the first 24 hours*, that is 33% of the postoperative deaths occurred within the first 24 hourso The simple abdominal wounds suffered a mortality of 35%„ Four of the 17 deaths in this group occurred within 24 hours of operation0 With the complicated abdominal wounds the mortality was 46%s> and 8 of the 19 deaths occurred in the first 24 hours after operation0 3 (b) Wounding to Admission (i) Time. The disposition of the formations was such that several FoD0Ss3 alternatively handled the priority I and II casualties for one division whereas a C0C0So looked after the same priority groups for the other division,, ABDOMINAL CASUALTIES. TABLE II Average Tim© Spent - Wounding to Admission C - t--r Mr—IXj rTjrt ,n art XZI7Z~ - I i-i-g-r fe-- r-w-~c-— r-r- - - -r-**-, -■ - — T- am —y—-l - » ■ -1 -n (Time in Hours; C o C pS o F0D0S Totals Surviving Gases s;i 7ol 6o3 Fatal Cases —- —--— O 0/ 6ol Totals 5o2 7o0 The average time from wounding to admission was 7o0 hrs0 at the F0D0Sss and 5o2 hrs0 at the C0CoS0 But the average time to admission of all the cases that survived was 603 hrs0 and for all the fatalities, 6„1 hrsc (Graphs show- ing the case distribution of the time from wounding to admission are included in the appendix of this report)0 (ii) Fluids Prior to admission to the surgical centres, 48 cases or 53% of the abdominal casualties, received an average of 2„0 bottles of plasma transfusion,. Sixty percent of this fluid was given to C0CcS0 cases$ that is, 74$ of the C0C0S0 casualties received an average of 1„9 bottles of plasma, whereas only 37$ of those evacuated to the F0D0Scs received an average of 2d bottles of plasma, prior to admission0 (c) Resuscitation (Pre~operative) ABDOMINAL CASUALTIES TABLE III Average Time Spent In Resuscitation ' ~in G o C 0S o F0D,Sas Total© Surviving Cases 5o3 4o9 53T Fatal Cases 5ol Totals 5.6 4.8 4 The average time spent in the resuscitation ward was 5o6 hours at the CoCoSo compared to 4.08 hours at the FoDoSflSo But the average time of all the living cases was 5o0 hrs0 and all the fatalities 5o4- hrs0 (Graphs showing the case distribution of the time spent in resuscitation are included in the appendix of this reporta (ii) Fluids In the table the fluids given in the resuscitation wards are reduced, for the sake of simplicity, to the number of 500 ccQ bottles of glucose, plasma or blood administered0 Protein fluid includes blood, plasma and serum0 (For the relative protortions used see Appendix Table II)„ ABDOMINAL CiiSUALTIES,TABLEJV Fluids Given in Resuscitation Average Number of Bottles Per Patient Bottle s 500 ccSo of fluid c*c Total Fluid oS Q Protein Fluid FoDoSc So Total Fluid Protein Fluid Surviving Cases 3o7 3o7 2o9 lo9 Fatal Cases L?M-. Totals UoO Uo 0 3o0 2ol The total fluid per patient given in resuscitation at the CeC0S0 was 4-o0 bottles (500 cc0 each) of which practically all was protein fluid, in other words, blood and plasma0 The fatalities received an average of 0o7 bottles more than those that lived, and most of the increase was protein fluid0 At the FoDfls the total per patient wag 3o0 bottles of which 201 bottles were protein fluid0 The fatalities received on the average 0o2 more bottles of total fluid, but 0o5 more bottles of protein fluido Dividing these cases into their primary two groups, a0 simple => wounds primarily of the abdomen, b0 complicated « abdominal wounds with other gross wounds, the averages may be tabled as followsc 5 ABP0MINAL_CASUALTIES TABLE,V Average Number of Bottles Given in Resuscitation CcCoSo FoDPSBs Total Fluid Protein Fluid Total Fluid Protein Fluid Simple Founds 3,6 3,6 2,6 1,7 Complicated Founds Uo5 4-o5 3,5 2o5 (d) Resuscitation (2A hours Post-operatively) During the first 24 hours post-operatively the C0C0So and FoDoS0 mortality was 52% and }5% respectively,. During this period each group adminis- tered 5=4 to 5oB bottles of fluid per patientp of which 2,3 to 2„4 bottles were protein fluids (bloodP serum or plasma)p and the remainder was glucose saline 0 3 o BLOGp_VpLUME_ S TUPLE This laboratory has done pre-operative blood volume studies on 32 abdominal cases since 4 Sep 44? of which 17 cases fall within the present period of studyp 1 Dec 44 to 15 Jan 45 ? and have been included in the analysis aboveo Pre-operative blood volume estimations were done by means of T » 1824 (Evanb Blue) on admission to the Advanced Surgical Centres, and the normal blood volume was calculated from the height and weight (and surface area), (a) Findings of BloodJ/'olume_Studie.s If these 32 abdominal cases are divided according to their wounds9 the blood loss on admission being expressed as a percentage of the calculated notmal blood volume in each instance, they appear as follows. ABDOMINAL CASUALTIES TABLE VI Admission Blood Volume Loss <=• Percentage Cases Ranee Average lo Simple abdominal wounds® aQ Hollow viscus only® 10 0 - 10% b® Hollow viscus and solid viscus0 A 12 - ZlS 16% Co Solid viscus onlyQ 3 21 - 25% 23% 20 Abdominal wounds with other serious wounds® a0 Hollow viscus only® 10 1-32% 21% b0 Hollow viscus and solid viscus0 3 16 ° 36% 26% c0 Solid viscus only® 1 35% 35% 6 The average percentage blood loss on admission for those cases with simple hollow viscus wounds was 10$ of the calculated normal blood volume and for the complicated hollow viscus wounds was 21$0 The simple abdominal wounds penetrating a solid as well as a hollow viscus* lost an average of l6$.„ and the complicated (hollow and solid viscus) an average of 26$0 NOTE; The blood volume estimations on admission to the Surgical centres*, do not represent the total blood lost by these patients* as plasma was administered to many of the casualties prior to their admission and in some there appeared to be considerable haeraodilution as judged by admission haematocrits0 (b) Discussion of Blood Volume Studies For the present review* a case is said to be in 55good condition” on admission when the clinical picture (p eripheral veins* skin temperature of extremities etc0) is satisfactory* the systolic blood pressure is over 100* and the diastolic over 50 mm0 Hg0 Cases not fulfilling these standards are said to be in ”poor condition” on admission0 In reviewing the cases in table VI above in the light of their con- dition on admission to the Advanced Surgical Centres the following trends may be seenQ 10 A simple wound penetrating a hollow viscus only was accompanied by less bleeding than one that also penetrated the superior or posterior abdominal contents* affecting the liver* spleen or kidneys0 20 The simple abdominal wounds that were in fairly good condition* had a blood volume loss of 24$ or less with one exception0 The simple solid viscus wounds received no forward transfusion and were in each instance* admitted in good condition with a 21$ to 25$ blood loss0 3o With the complicated abdominal wounds* there was not such a direct correlation* but of course* the extra-abdominal wounds in these cases varied considerablyo Generally it may be said that in the present short series if they arrived in poor condition* they had a greater than a 30$ blood loss* and if in good condition less than 20$* and that they averaged approximately 22$ blood loss on admission0 4-0 In terms of blood substitutes* 1 bottle of blood plus 1 bottle of plasma represent 1205$ of the blood volume of an average man (5600 cc0)o Seldom is there greater than 30$ blood loss on admission to a resuscitation ward0 Few abdominal wounds therefore will require more than four bottles of protein fluid ioe0 blood and plasma0 4-0 DISCUSSION The gross mortality of abdominal wounds in the forward areas mmains relatively unchanged| 10$ in the present series compared to 39$ reported by Lto-Colo Chuteo Bit the mortality within 24. hrs0 of operation has dropped from 50$ of the total deaths in the previous series* to 33$ in the presento 7 The drop in the 24 hour mortality may be due to increased postoperative care0 For instance, the blood pressure was recorded in many instances, every hour for the first 24 hours, indicating that the patients were at least seen every hour throughout the early postoperative period, and any vascular collapse could be recognized early in its onset The net result has been a prolongation of life by increased care, rather than a saving of life* There is almost a 2 hour difference in the time from wounding to ad=* mission to the Advanced Surgical Centre in the two divisions, but there is no appreciable difference in the time taken by the fatalities as compared to the living cases in either division, or in the corps as a whole. The average time spent in resuscitation in the G0C0Se was 506 hrs0 and at the FoDoS0s 4oB hrs0 These periods of time are in excess of the time actually required for resuscitation, as during heavy fighting, the casualties may have to wait 1 « 2 hrsQ in resuscitation for their turn in the operating theatreo By the blood volume studies the simple abdominal wounds seldom suffer a blood loss in excess of 30$ of the normal, and average at 13$c This repre- sents 2 bottles of protein fluid0 The simple abdominal casualties at the FoD0Sss were given an average of 107 bottles of protein fluid and at the CoC0So, 3o6 bottleso (Table V)c The preponderance of protein fluids at the CoCuS0 indicates a sparing use of glucose saline however the F0Dc,Sss gave 1.01 bottles on the average to each patient0 For both divisions the fatalities received 0o5 bottles of protein fluid more than the living cases but the difference in time spent in resusclta- tion was not significant0 5o CONCLUSIONS 1« An analysis has been made of 90 abdominal casualties exclusive of negative laparotomies, operated upon by 5 Surgical Teams in the Advanced Surgical Centres of the First Canadian Corps0, from 1 Dec 44 to 15 Jan 45 0 20 The gross mortality in the forward areas was 40$, l/3 of which (33$) died within the first 24 hours after operation, 3o The mortality was 35$ in the simple abdominal cases (without other serious wounds) and 40$ in the abdominal cases complicated by other serious woundSo 4<> There was no -significant difference in the average time spent from wounding to admission to the surgical centres, between the fatalities and the living cases (601 hrs0 and 6C3 hrs0 respectively)0 5o Fiftyt3three percent of abdominal casualties received an average of 2o0 bottles of plasma, prior to admissione 60 The average time spent by these casualties in the resuscitation wards 8 was perhaps excessive (4o8 hours to $®6 hours average) but there was no sign° ificant difference between the fatalities and the living cases® 7® In some cases there is a tendancy to over transfuse with protein fluids in the resuscitation wards coupled with a sparing use of glucose saline® 80 Pre=operative blood volume studies have been made on 32 abdominal cases (17 in the above series) to judge the amount of transfusion fluids required by these casualties® 9o Simple penetrating abdominal wounds arriving in the resuscitation wards in good condition* have a probable blood loss of 2IS or less, and require a maximum of 2 bottles of blood and 1 of plasma® Any further administration of intravenous fluid should be glucose saline® The same casualty arriving in poor condition probably requires at least 2 bottles of each of blood and plasma® 10® The blood loss in the complicated abdominal wounds varied according to the severity of the extra~abdominal w ounds as well as the intra-abdominal lesions* thus generalizations as to blood volume loss in these patients is not warranted® In general their blood volume reduction was greater than for the corresponding simple abdominal lesion® All Cases (Excluding Simple group (No other Complicated Group negative laparotomies) Significant Wounds) (Other Gross Wounds) Total 24- Hr„ Total 24 Hr0 Total 24 Hr. Cases Deaths Deaths Cases Deaths Deaths Cases Deaths Deaths Special Group 22 oanacjcawi 5 aotacoaajao 2 13 oaoaaotoo ocsc .JL 3_ FoDoSc 29 12 4 16 5 2 13 7 2 FoD.Sc Totals 51 17 6 29 7 3 22 10 3 33? _35?_ 57?_ 24? 43? _45? n n 39 19 6 20 10 1 19 9 5 v/ o v ou e 49? 32% 51? 50% 49? 47? Grand Totals 90 36 12 49 17 4 41 19 8 4.0$ 33% 54? 35? 46% 46$ ABDOMINAL CASUALTIES THAT COMPLETED OPERATION IN CANADIAN ADVANCED SURGICAL CENTRES M.JmX - LMecJA - to 15 Jan .45« APPENDIX ° TABLE I MORTALITY FIGURES AND PERCENTAGES Glucose • Plasma Blood Total Avers No0 No0 of 500 cc T$o0 ‘ TSTW cc No0 No0 of 500 cc Total Protein Patients Bottles Patients s Bottles Patients Bottles Fluid Fluid Living 22 34 24 31 24 34 COCO CD 60 CO C3 CO CO CO COSO CO CO CO CO COCO COCO CO CO CO COCO « 52 34 s 2o9 6j g lo9 34 Deaths 9 12 11 19 13 22 U d„12. s 3d 41 s . 17 . 2 <>4 Totals 31 A6 35 50 37 56 152 S 3o0 106 S 2.1 awocao oocoo aooac ctoco co coco coco coco csasjsaa aao csotaa ooaoooo oao Qorooaoocoaoawa Jl. 51 loaaoooooaooc Average lo5 i«4 lo5 Living 0 0 17 33 17 41 74 20. ■ 3c7 74 « , . ... .20 3o? Deaths 1 2 16 34 17 47 82 19 0 4o4 Hi ® 4®3 19 iooOcoqoB* otoaoKjO § 4c0 155 s 4o0 39 => oacooaoooooooooaooocoaoo «GOco aoooo oaoo coco coco o«3# coco coro oooooooooow co oooo«c Totals 1 2 33 67 34 88 152 39 Average 2o0 2o0 206 3 60 «»0 CC ABDOMINAL CASUALTIES THAT COMPLETED OPERATION IN CANADIAN ADVANCED SURGICAL CENTRES ea»xn_.^-KT-jrs.«-ii»c.wn™ oiw»: e-f-» «u. a.ajran t \’jz^rxrcrts*rx-tts*czszxzzzr^-xzxss.-==srrxam.*.., ,Jng|S:«i t-=— .at* ;n—a im, ' -7. „ rr-r: rx~ri i ,71.- ,.i -««w.v-rr_-:\y.-. z? IN ITALY - 1 Dec LL to 15 Jan L5o APPENDIX ° TABLE II Fluids Given in Resuscitation ABDOMINAL CASUALTIES THAT COMPLETED OPERATION IN CANADIAN ADVANCED SURGICAL CENTRES IN ITALY ooec^ejahgs) TIME IN RESUSCITATION I I i l il i I i T 1 C.CS. CASES FATAL CASES SURVIVING CASES HOURS HOURS TIME-WOUNDING TO ADMISSION i i i i i i i i i i i i i i i i « 10 II 12 HOURS HOURS APPENDIX - GRAPH Z NO. OF CASES NO. OF CASES ABDOMINAL CASUALTIES THAT COMPLETED OPERATION IN CANADIAN ADVANCED SURGICAL CENTRES IN ITALY (l DEO44-15JAN45) time in resuscitation SURVIVING CASES P.0.8. CASES HOURS H6JR§ FATAL CASES HOURS HOURS APPENDIX - GRAPH II TIME-WOUNDING TO ADMISSION NO. OF CASES NO. OF CASES