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Table of Contents
LETTERS TO EDITOR  
Year : 2021  |  Volume : 24  |  Issue : 2  |  Page : 278-279
Massive gastro-intestinal bleed in a case of aorto-enteric fistula: An intraoperative nightmare


1 Department of Cardiac Anaesthesia, Cardiothoracic Centre, CNC, All India Institute of Medical Sciences, New Delhi, India
2 Department of Cardiothoracic and Vascular Surgery, Cardiothoracic Centre, CNC, All India Institute of Medical Sciences, New Delhi, India

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Date of Submission28-Sep-2019
Date of Acceptance01-Nov-2019
Date of Web Publication19-Apr-2021
 

How to cite this article:
Magoon R, Makhija N, Goyal A, Ramakrishnan P, Singh A. Massive gastro-intestinal bleed in a case of aorto-enteric fistula: An intraoperative nightmare. Ann Card Anaesth 2021;24:278-9

How to cite this URL:
Magoon R, Makhija N, Goyal A, Ramakrishnan P, Singh A. Massive gastro-intestinal bleed in a case of aorto-enteric fistula: An intraoperative nightmare. Ann Card Anaesth [serial online] 2021 [cited 2021 Jun 16];24:278-9. Available from: https://www.annals.in/text.asp?2021/24/2/278/314124




To the Editor,

Vascular anaesthesia presents unique management challenges to a perioperative physician considering the large volume shifts, aortic clamping and de-clamping syndrome, perioperative bleeding and organ protection concerns. The challenges become magnified in background of rare presentation of the underlying vascular pathologies.

We describe a case which bears testimony to the aforementioned fact. A 62 year old male patient was scheduled for the surgical repair of an infra-renal aortic pseudo-aneurysm and a co-existent aorto-enteric fistula (AEF). Following induction of anaesthesia, a sudden hemodynamic deterioration ensued. A continuous column of fresh blood started draining through the naso-gastric (NG) tube which accounted for the existing hypotension and declining haematocrit. A cumulative amount of almost 1 L blood collected in the NG drainage system [Figure 1]a, signifying a massive gastro-intestinal (GI) bleed with ongoing resuscitative endeavours to maintain hemodynamic stability. Following an immediate proximal aortic control (aortic clamping) to control GI bleed, the surgical exploration revealed an aorto-duodenal fistula at the advancing end of the aortic pseudo-aneurysmal sac [Figure 1]b. Subsequently, a patch closure of the aortic end of the AEF [Figure 1]c, resection of the perforated part of the duodenum and a duodeno-jejunostomy was performed.
Figure 1: Depicts the nasogastric tube drainage assembly with collection of approximately a litre of blood in the volumetric chamber of the urine collecting bag (a). A surgical figure showing the pseudo-aneurysmal sac (P) with the wall of the sac (W) in the Babcock intestinal forceps, the surgical pledget marking the aortic end (Ao) of aorto-enteric fistula and the arrow representing the fistulous tract (b). Depicting the bovine pericardial patch (PP) repair of the pseudo-aneurysm, the opening of the pseudo-aneurymal sac (O) communicating with the duodenum on surgical probing (c). I denotes the intestines

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AEF is a rather rare cause of GI bleed. It can be categorized as primary or secondary. Secondary AEF result following surgical aortic reconstruction with an incidence of 0.6-4%.[1],[2] However, the reported incidence of a primary AEF is hardly 0.04-0.07%.[3] The index case demonstrated a primary AEF arising de novo between the aorta and the duodenum. The literature also outlines duodenum as the most common part of the GI tract involved in AEF with the mechanical, inflammatory and infective components contributing to the development of the fistulous tract.[3],[4] An intermittent 'herald-bleed' is often considered as subtle clue of an underlying AEF.[5] The preoperative history elucidated that the patient was experiencing intermittent episodes of hematochezia since 3 days, only to manifest as a torrential intra-operative GI bleed after anaesthetic induction.

To conclude, AEF constitutes a unique presentation of an underlying aortic-pathology, wherein the perioperative management is compounded by a multitude of factors such as the control of GI haemorrhage, infection, and maintenance of an adequate distal perfusion. The index case illustrates the role of a forewarned and a forearmed anaesthesiologist in managing this rare cohort of surgical patients.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form, the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
   References Top

1.
Mohammadzade MA, Akbar HM. Secondary aortoenteric fistula. MedGenMed 2007;9:25:1-4.  Back to cited text no. 1
    
2.
Zaki M, Tawfick W, Alawy M, ElKassaby M, Hynes N, Sultan S. Secondary aortoduodenal fistula following endovascular repair of inflammatory abdominal aortic aneurysm due to Streptococcus anginosus infection: A case report and literature review. Int J Surg Case Rep 2014;5:710-3.  Back to cited text no. 2
    
3.
Saers SJ, Scheltinga MR. Primary aortoenteric fistula. Br J Surg 2005;92:14352.  Back to cited text no. 3
    
4.
Varghese M, Jorgensen GT, Aune C, Bergan R, Norderval S, Moland J. Primary aortoduodenal fistula—A case report and a review of the literature. Ann Vasc Surg 2016;34:e1-4:271.e1-4.  Back to cited text no. 4
    
5.
Baril DT, Carroccio A, Ellozy SH, Palchik E, Sachdev U, Jacobs TS, et al. Evolving strategies for the treatment of aortoenteric fistulas. J Vasc Surg 2006;44:250-7.  Back to cited text no. 5
    

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Correspondence Address:
Neeti Makhija
Room No. 9,7th Floor, Department of Cardiac Anaesthesia, Cardiothoracic Centre, All India Institute of Medical Sciences, Ansari Nagar, New Delhi - 110 029
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/aca.ACA_144_19

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