Surgical management of colon trauma in civilian practice

Surgical management of colon trauma in civilian practice

Surgical Management Civilian of Colon Practice* Trauma ROBERT S. VANNIX, M.D., RICHARD CARTER, M.D., DAVID B. HINSHAW, EUGENE J. JOERCENSON, M.D.,...

705KB Sizes 0 Downloads 67 Views

Surgical

Management Civilian

of Colon Practice*

Trauma

ROBERT S. VANNIX, M.D., RICHARD CARTER, M.D., DAVID B. HINSHAW, EUGENE J. JOERCENSON, M.D., Los Angeles, California From the Loma Linda University School of Medicine, Department of Surgery, tbe Los Angeles County General Hospital and tbe Wbite Memorial Hospital, Los Angeles, California.

ROGRESS in the management of wounds of coIon and rectum has IargeIy resuIted from experiences in miIitary surgery [r-4] and more recentIy from observations made in Iarge civiIian hospitaIs [f-9]. During WorId War II and the Korean conflict, the routine use of exteriorization or proxima1 coIostomy resuIted in a striking reduction in mortaIity, and this method has subsequentIy become popuIar in civilian practice. However, it has become evident that exteriorization or prox$maI coIostomy may not be necessary in the majority of civiIian injuries and may be associated with proIonged convaIescence and additiona complications

P the

MANAGEMENT

In an attempt to further evaIuate this probIem, an analysis was made of 138 patients with coIon and recta1 injuries treated on the TABLE

The preoperative compIete physica

management consisted of evaIuation of the patient, TABLE

I OF

AND

Loma Linda University surgica1 services from 1956 to 1962. There were twenty deaths in this totaI group, a mortaIity rate of 14.5 per cent. One hundred thirty-two patients of the 138 received operative treatment. The average age was 34.6 years, with extremes being a gir1, age three, and a man of ninety-four years. The mechanisms of trauma are outIined in TabIe I. The number of injuries with accompanying mortaIity for each anatomica segment of the coIon and rectum are Iisted in TabIe II. As has been frequently emphasized, recta1 injuries, particuIarIy those that are extraperitonea1, tend to be more serious than injuries elsewhere in the coIon. The transverse colon was the site most frequentIy injured. (Fig. I.) TweIve patients had three or more perforations, of whom three died.

[9ml*

MECHANISM

M.D.

in

INJURY

LOCATION

OF

II INJURY

-

-7

No.

Data

62 34 I7

BulIet .............. Stab. ............... TransanaI trauma .... BIunt trauma ........ Shotgun. ........... Ingested foreign body Operative. ..........

TotaI . .

of

Cases

No. of Deaths

Location

Cecum and ascending coIon. ....... Hepatic flexure ................... Transverse c&n. ................. Spknic flexure. ................... Descending colon. ................ Sigmoid .......................... IntraperitoneaI rectum ............. ExtraperitoneaI rectum ............

: 4

6’

0 0

.

.

2

.

138

Deaths

__

7

.

No.

I

TotaI

20

. .

25

3 40

II 15

19 19 6 138

20

* Presented American

at the annua1 meeting of the Pacific Coast SurgicaI Association, 3-6, 1963.

Journal

OJ Surgery,

Volume

rd.

August

rg63

364

Palm

Springs, California, February

SurgicaI Management

of CoIon Trauma

HEPATIC FL’EXURE

3, ot TRkNS’ COLON 40,s-t

’ 6

_

RECTUM: INTRAPERITONEAL EXTRAPERITONEAL FIG. x. Location

PRIMARY CLOSURE WITHEXTERIORIZATION

of injury.

5

67

1

10 %

0

0

11 23.9 % FIG.

2.

Left to right. Cases, deaths and mortaIity.

365

Vannix, Carter, Hinshaw and Joergenson TABLE METHODS

OF

TABLE

IzI

SURGICAL

Deaths

Data

Primary closure. . Simple closure. Resection and primary anastomosis . . . Primary cIosure with exteriorization . . Primary venting.. Proximal colostomy or cecostomy.......... Exteriorization of injured segment resulting in coIostomy. .

INTERVAL

MANAGEMENT

76 69

I

I7

Cases

TREATMENT

Operated

Death s

1:aIity

2 Hr./ less (Per cent)

Per cent

iPrimary closure. o-6 hr. 6-12 hr., 12-18 hr.. 18-z4hr 5 week.

10.0

II

29

IllterKd

I

IO

46

TO

MOP

4

7

IV

INJURY

6.6

5

I

MortaIity (Per cent)

FROM

23.9

5

24-w

bIood voIume and ffuid replacement, tetanus nasogastric suction, indwelling prophyIaxis, catheters with monitoring of urine output, pIus Iaboratory studies as indicated. Urography, sigmoidoscopy and abdominal paracentesis were utiIized when indicated. Preoperative antibiotics were frequently given. Operative management consisted in contro1 of hemorrhage, closure of perforation sites, repair of other injuries when present, and adequate drainage when indicated. Three genera1 methods were utiIized whichare summarized in TabIe III. (Fig. 2.) The first was primary closure in which the injured site was either debrided and closed or resected with primary anastomosis [g]. Seventy-six patients were in this primary cIosure group with a mortaIity rate of 6.6 per cent. Of these, sixtynine had the injury site debrided and closed, and seven had the site resected with primary anastomosis. Four of the seven primary resections were right coIectomies, one patient died. There were four deaths among the sixty-nine patients treated by debridement with cIosure. Forty-five of the injuries in this group were in the ascending or transverse coIon with three deaths; thirty-one injuries were in the Ieft coIon incIuding the rectum, with two deaths. The second surgical method was primary cIosure with exteriorization which was used in ten patients with one death [a. Six of the injuries occurred in the hepatic ffexure or transverse coIon with one death; four injuries were in the Ieft coIon. The third method was primary venting (coIostomy or cecostomy) utiIizing a staged 366

4 I 0 0

,

_._.

56

__

6.6 10.3

5 39 31 3 I

ex&orization and primary venting. odhr _.._.__._._.. 6-12 hr.. la-18 hr.. 10-24 hr., hr., zday. 3dsy .._ 4day .._ 5day. .,,....._ 10 day

_.

6

76

o

21.4 12.5 38.8 ..

12 24 18 3

75

3.2

3 7 0

z I

o 0

3 , 2 I I

I I o o 0

I

-

60 .

33.3 00

-

-

approach. Forty-six patients were treated in this way, eIeven deaths occurred, an operative mortaIity rate of 23.9 per cent. Of the forty-six patients, twenty-nine had a proximal vent, and five died; seventeen had exteriorization of the site of injury with six deaths. Thirteen injuries occurred in the ascending or transverse colon with three deaths, and thirty-three injuries were in the left colon including rectum with eight deaths. There were three deaths in the remaining six patients in whom no surgica1 procedure was performed. It wouId appear in review that the three deaths wouId have been prevented by prompt surgical intervention. Of the three survivors two had posterior extraperitonea recta1 perforations and the other had an intraperitoneal recta1 injury. This intraperitonea1 perforation which was of specia1 interest was caused by an enema tip one month prior to admission. A c&de-sac abscess had deveIoped, which spontaneousIy drained at sigmoidoscopy. The time interva1 from injury to treatment is significant. It has been noted by many authors that resuIts improve when surgica1 treatment is prompt, especiaIIy under six hours. Data reIated to a time interval is summarized in Table IV. TabIe v lists the associated trauma in the 132 operated cases. Forty-four patients had a

SurgicaI

Management

of CoIon Trauma

TABLE v ASSOCIATEDTRAUMA IN I32 OPERATED CASES

-

-

- -

CoIon or rectal injuq 7 only. ............... SmaII bowe1. .......... Stomach .............. Liver ................. Pancreas. ............. CaIIbIadder and/or corn, mon duct. .......... Lung and/or hemo- 01r pneumothorax. ......

_ 13.3 17.9 7.6 9.1 7.6

3 4

IS.9 12.0 10.0 25.0 40.0

5

3.8

I

20.0

IO 6

7.6 4.5 5.3 7.6 3.8 3.0 I.5

3 I 2 2

30.0 16.7 28.6 20.0 20.0 50.0 50.0

7 IO 5 4 2 2

smaI1

associated bowe1

Extremity by

I

5 24 29

;:: 8.3 !2.0

3 2

-

-

In

injured

taiity

seven per

15.9

of patients or

One

treated

primary is

ciated

faiIures

or 9.1 per or

TabIe

Ieaks

recta1

cases.

VI summarizes

cIosure

with

with

of primary

freedom

from

primary

coIostomies

two 5.3

There

uneventfu1

deaths).

were

cent a

I

2 2 IO I 4 2 2 0

I 46 16 9 12 5 I I 2

four

of had

the

seventy-six

an

Of the

uneventfu1 remaining

mortaIity

of

had

recovery forty

6.6 per

cIuded twenty-seven subcutaneous

who

(IO per cent).

cent. wound

abscesses),

(47.3

patients,

per

five

infections

cent).

died,

Compbcations five

Primary cIosure Seventy-one patients Iived. . . . . Five patients died.. . . . Primary cIosure with exteriorizatior and primary venting Twenty coIostomies not closed. Twenty-four coIostomies cIosed TweIve died. . . .. . .

a in-

(six were

intraperitonea1 367

was

DAYS

Minima1 and Maximal Days

Data

cIosure

of

cIosure

There

I

patients

primary

group

IX) one onIy had an

asso-

exteriorization

Ieaks

seventy-six

who had primary (TabIe

renal

compIications.

or anasto-

VIII thirty-six

four

the

-

RESULTS OF MANAGEMENT in TabIe

two

anastomotic

These of

procedures.

As indicated

obstructions

surgery,

misceIIaneous

other assorted

recovery

7

and two were cause

and

per

27 18 rg

TABLE VII LENGTH OF HOSPITALIZATIONIN

vent-

morbidity

and

(with

deaths,

with exteriorization

exteriorization.

cIosure

the

with

Deaths

76

intestina1

subsequent

Of the ten patients

and

cIosure

by primary

smaI1

required

twenty-one

of initia1 hospitaIizawith

two

represented

a mor-

coIon injury

(one subphrenic,

death),

which

foIIowed

coIon

to those treated

advantage

mosis

of

frequency

occurred,

between

VII the Iength

is compared ing

abscesses

cent).

and diaphragm.

with

No.

Primary cIosure.. . CoIon aIone. . . CoIon pIus one other viscus. Colon pIus two other viscera. CoIon pIus three other viscera.. CoIon pIus four other viscera. CoIon pIus five other viscera Colon plus six other viscera. 1 Exteriorization.. CoIon aIone.. CoIon pIus one other viscus Won pIus two other viscera. CoIon plus three other viscera. CoIon pIus four other viscera. CoIon pIus five other viscera. Primaryvent.................... CoIon alone.. CoIon pIus one other viscus CoIon pIus two other viscera. CoIon pIus three other viscera. CoIon pIus four other viscera. CoIon pIus five other viscera. CoIon plus six other viscera.

trauma.

In TabIe tion

cases

deaths

cent.

in

per cent),

pancreas

the interreIationship associated

the

per

37.9

(tweIve

patients

onIy, of

fre-

was

next

forty-four

trauma

most

were

to Iiver

6.9

The

injuries

then stomach,

40.0 12.5

structure or

cases or 18.3

.

-

cases

injuries

cent),

2 I

2 I 0 2

(fifty

(twenty-four

Data

-_

soIitary coIon or recta1 injury. quentIy

Per cent

Deaths

44 50 IO 12 IO

SpIeen................ Kidney ............... Diaphragm. ........... Duodenum. ........... Great vessek. ......... Bladder. .............. Ureter. ............... SpinaIcord ............ Extremities. ........... MisceIIane0u.s. .........

T

Per :ent

1No.

Data

TABLE VI ASSOCIATEDTRAUMA

AverN”,“. of Days

3 to 84 4to 41

15.4 21.8

5 to 60 13 to 92 1 to 37

25.2 36.4 10.0

1

Vannix, Carter, Hinshaw and Joergenson TABLE RESULTS

TABLE IX

VIII

IN SEVENTY-SIX PRIMARY CLOSURES

Data

UneventfuI recovery. Deaths..................... Complications. Wound infection. Intraperitoneal abscess.. Anastomotic Ieaks.. IntestinaI obstruction. Renal faihrre. MiscelIaneous.

No. of Patients

RESULTS

IN

TEN

PRIMARY

CLOSURES

EXTERIORIZATION

T I?er cent

WITH

No. of 1Per cent Patient! s

Data

-36 5 40 27 5 4 2 2 21

“~:~ 5.3

one death (IO per cent). The probIem of handling the exteriorized coIon is dificult [IO]. Of the ten cases exteriorized six had dehiscence of the closure with the formation of a coIostomy, thus converting them to a vent at the site of the injury. OnIy four were repIaced without having to open the coIon, one of which cIosure sites reperforated after it was repIaced and required another exteriorization with the patient eventuaIIy dying. Seventeen compIications occurred in the nine remaining patients. There were four intraperitonea1 Ieaks either at the site of cIosure of the injury or after a subsequent coIostomy cIosure (an incidence of 40 per cent Ieaks). One patient had a subphrenic and cuI-de-sac abscess which required drainage. EarIy smaI1 bowe1 obstruction occurred in two patients, which required operative decompression. Another patient had coIon obstruction due to tension of exteriorized coIon over the supporting rod. Nine miscelIaneous complications occurred. In the forty-six cases in which a primary vent was utiIized (TabIe x), eight patients (17.4 per cent) had an uneventfu1 recovery. EIeven deaths occurred (23.9 per cent mortaIity rate). Wound infection occurred in twenty-one cases. CoIostomy probIems deveIoped in ten patients (21.7 per cent) incIuding skin autodigestion, pericolostomy abscess and proIapse; three coIostomy cIosure Ieaks, smaI1 bowe1 obstruction, gangrene of coIostomy, and three coIostomy closure strictures. Other compIications incIuded four smaI1 bowe1 obstructions which required Iaparotomy, three patients with intraperitonea1 sepsis (subphrenic abscesses), and twenty-four misceIIaneous complications.

Uneventful recovery. . Deaths........................ Exteriorized cIosure replaced as foIIows: RepIaced without having colostomy....................... Required colostomy through exteriorized segment. CoIon reperforated after repIacemerit........................ CompIications. . Subphrenic and cuI-de-sac abscess........................ Small bowel obstruction requiringsurgery.................. CoIon obstruction at exteriorization site.. Anastomotic Ieaks.

I

10.0

I

10.0

4

.

.

6

. . .

.

.

40.0

MisceIIaneous -

ANALYSIS

OF PRIMARY

CLOSURE

DEHISCENCE

AND DEATHS

There were four anastomotic Ieaks with two survivorsamongtheseventy-sixpatients treated by primary cIosure. One was a thirty-seven year oId man who had a stab wound of the transverse colon and a feca1 impaction. It subsequentIy disrupted, requiring reoperation with exteriorization and eventua1 recovery. Another instance was a twenty-seven year oId man TABLE RESULTS

IN

FORTY-SIX

X PRIMARY

VENTS

ResuIts

Uneventfuf recovery. . Deaths......................... Comphcations. CoIostomy problems (proIapse, frstuIization, abscess, gangrene)...................... Wound infection. . Small bowe1 obstruction.. IntraperitoneaI sepsis. Anastomotic Ieaks.. MisceIIaneous..

8 II 36

17.4 23.9

10 21 4 3 4 24

21.7

.

8.7 I

368

SurgicaI TABLE

Management

XI

CAUSE OF DEATH IN PRIMARY CLOSURES

-

-

Mechanism

Cause of death

IlljUry

-_ Gunshot wound

Transverse colon and four other viscera ErtraperitoneaI rec. turn during pelvic exenteration Rectosigmoid perforation Cecum. ileum, and [ spinal cord

Operative Foreign body Gunshot wound Gunshot wound

Transverse colon and five other viscera

-

Acute renal faiture

Acute pyelonephritis Generalized peritonitis Suture line dehiscence with fecal peritonitis and sepsis Exsanguination due to acute hemorrhagic pancreatitis and liver necrosis with disruption of colon closure

-

with a gunshot wound of the extraperitonea1 ascending colon in whom a fistuIa deveIoped, which required a right coIectomy before fina recovery. The two deaths with anastomotic disruption are Iisted in TabIe XI. AI1 five deaths are, aIso, analyzed in TabIe XI. DEATHS

IN

PRIMARY

EXTERIORIZATION VENTING

CLOSURE AND

WITH

PRIMARY

PROCEDURES

The one death in the primary cIosure with exteriorization group was due to dehiscence of the suture Iine when the coIon was repIaced. Of the eIeven deaths with primary venting procedures, nine were caused by massive injury or generaIized peritonitis and were not reIated to operative error. A fifty-three year oId man with a rectosigmoid foreign body perforation had a wound evisceration and died from cardiac arrest at surgery. A fifty-seven year old man had blunt trauma injury with Iaceration of the extraperitonea1 rectum treated by coIostomy and died of an unreIated aspiration probIem.

of CoIon Trauma jority of battIefieId coIon wounds requires an exteriorization approach, whereas a Iarge percentage of civilian coIon injuries may be accompanied by less IocaI tissue destruction and are adaptabIe to primary cIosure. It is of interest to note that there were four patients (5.3 per cent) who had a dehiscence of the primary suture Iine. Two of these died, but the other two were successfuIIy managed, one by a coIostomy and the other by right coIectomy. Wound infection proved to be a common compIication in primary cIosure. Of ten patients who had primary cIosures of their coIon perforation associated with exthere were four instances of teriorization, suture-Iine dehiscence. There were frequent complications associated with the coJostomy in the primary vent and exteriorization groups. SUMMARY

AND

CONCLUSIONS

This study is an anaIysis of the management of 138 cases of coIon and recta1 trauma. Primary cIosure was used in seventy-six instances with a mortaIity of 6.6 per cent; it is considered to be the treatment of choice when circumstances permit [7-91. When coIon wounds are accompanied by extensive IocaI tissue injury or massive feca1 peritonitis, primary venting procedures are recommended. AIthough selected wounds of the extraperitonea1 rectum may be treated by primary repair, the majority require proxima1 coIostomy and perinea1 drainage [IO-141. Extensive muItipIe organ trauma and associated diseases are serious factors in prognosis. REFERENCES

BOWERS, W. F. Surgical treatment in abdominaI trauma: a comparison of resuIts in war and peace. Military Med., I 18: g, 1956. 2. COLCOCK, B. P. Battle wounds of the colon and rectum. Mil. Surgeon, 109: 688, 1951. 3. HURT, L. E. The surgica1 management of coIon and recta1 injuries in the forward areas. Ann. Surg., 122: 398, 1945. of penetrating 4. POER, D. H. The management abdominal injuries. Ann. Surg., 127: Iogz. 1~8. 5. ISAACSON, J. E., BUCK, R. L. and KAHLE, H. R. Changing concepts of treatment of traumatic injuries of the coIon. Dis. Colon @ Rectum, I.

COMMENTS

The effective routine use of exteriorization procedures during WorId War II and the Korean conff ict had a widespread inff uence in civilian practice. However, as the differences between military and civilian injuries have been evaIuated, it has become evident that a different approach shouId be considered in nonmiIitary hospitak. The massive tissue injury a.nd devitalization which characterizes the ma-

4:. 168,

1961.

PATTON. R. T. and LYONS. C. The treatment of traumatic injuries of the coIon. Trauma, I : 298, 1961. 7. PONTIUS, R. G., CREECH, 0. and DEBAKEY, M. E. Management of Iarge bowe1 injuries in civilian practice. Ann. Surg., 146: 291, 1937.

6.

369

Vannix,

Carter,

Hinshaw

8. ROOF, W. R., MORRIS, G. C. and DEBAKEY, M. E.

Management of perforating injuries to the coIon in civiIian practice. Am. J. Surg., gg: 641, 1960. 9. WOODHALL, J. P. and OCHSNER,A. The management of perforating injuries of the coIon and rectum in civiIian practice. Surgery, 29: 305, 1951. IO. PILCHER,L. S. Wounds of the colon and rectuma critica anaIysis of current methods of surgica1 treatment with emphasis on detaiIs of surgica1 technique. Mil. Surgeon, 104: 188, 1949. I I. LAUFMAN,H. The initial surgical treatment of penetrating wounds of the rectum. Surg. Gynec c Obst., 82: 219, 1946. 12. NEVIN, I. N., SENIEK, I. E. and JOHNSON,A. G. Foreign-body penetration of the rectum. New England J. Med., 264: 1127, 1961. 13. TURELL, R., KRAKAUER, J. S. and MAYNARD, A. CoIonic and anorecta1 function and disease. Surg. Gynec. FY Obst., 96: 313, 1953. 14. WECKESSER, E. C. and PUTNAM, T. C. Perforating injuries of the rectum and sigmoid coIon. J. Trauma, 2: 474, 1962.

DISCUSSION JACK FARRIS (Los AngeIes, CaIif.): I am certain that we are al1 grateful to Dr. Vannix and his associates for this presentation which caIIs our attention to the feasibiIity of definitiveIy treating coIon injuries by primary suture. Those who have done this type of cIinica1 investigation are aware, I am certain, of the enormous amount of effort that goes into the analysis of these data. As you wiI1 recaI1, there were 132 operations performed in 138 patients with twenty deaths, a mortaIity rate in the over-a11 group of about fourteen or 14.5 per cent. Of interest to us today is the group of seventysix patients who were treated by primary cIosure with a mortaIity rate of 6.6 per cent. I am certain that Dr. Vannix did not impIy the Iower mortaIity rate in the primary cIosure group was a direct resuIt of the method of treatment, but rather that this group of patients, nameIy, those without massive tissue injury, without sepsis, and those who have had a short time interva1 between injury and operation, are usuaIIy chosen for this particular modaIity. I have been interested recentIy in reviewing some of the pertinent literature on colon injuries since being given this assignment by Dr. Vannix and his coIIeagues; I was surprised to find numerous references in the Iiterature to the use of primary cIosure in the treatment of coIon injuries. As a matter of fact, OgiIvie in 1944 suggested primary suture particuIarIy for ceca1 wounds and wounds of the ascending colon. Those of us in the European theater during the war treated a11 coIon injuries by coIostomy di370

and Joergenson

version, aIthough we had a tacit agreement that most Iesions of the cecum and the ascending coIon, if at a11 suitabIe, shouId be treated by primary suture or by right coIectomy and iIeotransverse coIostomy rather than by iIeostomy. AIso, I was interested to see that Doctors Christianson, Ignatius and Mathewson had reported a number of patients who had been treated in civilian Iife by primary cIosure with no Ieaks and no deaths. Innes, in 1947, reported twenty-five injuries of the coIon in civiIian practice which were cIosed primarily with no Ieakage and IOO per cent recovery. About forty-seven years ago, a Captain Fraser, who was in the RoyaI Canadian MedicaI Corps, pubIished in Tbe British Medical Journal an extensive experience with 300 abdominaI injuries during WorId War I; he says, in summarizing his experience, that at first he folIowed a practice of a proximal coIostomy in combination with the operation of suture. “There are the obvious advantages that it increases the safety of the suture whiIe it obviates the passage of feca1 matter through the damaged gut. At this time we were suspicious regarding the viabiIity of the Iine of coIon suture, and we felt that coIotomy had a greater security. Later we recognized that the performance of proxima1 coIostomy was rareIy necessary, and we have, therefore, aImost abandoned its use. We now reinforce the suture line by an omenta1 graft. We beIieve that our results have improved since we have aItered our procedure.” This was about fifty years ago. So, I would compIiment the authors on a most carefu1 study of a reaIIy significant number of cases, and I am certain that I can summarize their beIiefs and emphasize that this particuIar maneuver shouId be used onIy in the ideal case, in a case in which there is minima1 tissue injury, when a short time has eIapsed, and where, perhaps, there is a skiIIfu1 surgeon. I wiI1 summarize by saying that, in short, there is a pIace for both methods of treatment, and that the two stage procedures in my opinion aIways wiI1 occupy an important pIace in the armamentarium of the general surgeon. I wouId Iike to close by CompIimenting Dr. Vannix on his beautiful presentation, his exceIIent sIides, and I think he Iends credence to the axiom that a good presentation for its background has lots of preparation. CARLETON MATHEWSON, JR. (San Francisco, Calif.): I hope you wiII forgive me for speaking again, but I, too, wouId like to extend my compliments to the authors and wouId Iike to emphasize the important difference between treating patients with injuries of this type in civiIian Iife and those in wartime. CertainIy, we who see these patients early and are abIe to keep them under constant observation are justified in doing primary cIosures

SurgicaI Management of the coIon. In wartime, however, the transportation probIems and rapid evacuation make it dangerous and, therefore, unjustified. My main reason, however, for speaking is to object to the faith that a great many people have in proxima1 colostomy. A proximal coIostomy does act as a vent and gets rid of gas and pressure, but rareIy gets rid of contamination. One, in treating a sigmoid perforation from a diverticuIitis, frequentIy wiI1 do a transverse coIostomy; often doing the transverse coIostomy on the right side of the colon in order to faciIitate subsequent Ieft coIectomy and re-establishment of continuity. In so doing, one Ieaves a tremendous reservoir of retained feca1 materia1 which continues to con-

of CoIon Trauma taminate the area of perforation. If one does choose to do a proxima1 coIostomy, it should be done in as cIose approximation to the injury as possibIe. DAVID B. HINSHAW (closing): We wouId Iike to thank Dr. Farris and Dr. Mathewson for their kind and thoughtfu1 comments. We wouId agree, strongIy so, that a surgeon shouId be famiIiar with a11 methods of dealing with this type of injury. It is cIear that each case must be individuaIized, and that no “ruIe of thumb” can be Iaid down for the treatment of coIon and recta1 injuries. We appreciate the opportunity to present this paper to the Association.

371