alexa Emergency Thoracotomy- Isolated Internal Thoracic Artery Injury | Open Access Journals
[Jurnalul de Chirurgie]
ISSN: 1584-9341
Journal of Surgery
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Emergency Thoracotomy- Isolated Internal Thoracic Artery Injury

Islam S*, Shah J and Narayn Singh V

Department of Clinical Surgical Sciences, University of the West Indies, St Augustine, Trinidad and Tobago

*Corresponding Author:
Shariful Islam
Department of Clinical Surgical Sciences
University of the West Indies
St Augustine, Trinidad and Tobago
Tel: 868-797-4951
Fax: 868-797-4951
E-mail: [email protected]

Received Date: June 20, 2014 ; Accepted Date: June 27, 2014; Published Date: September 20, 2014

Citation: Islam S, Shah J, Singh VN. Emergency Thoracotomy- Isolated Internal Thoracic Artery Injury. Journal of Surgery [Jurnalul de chirurgie] 2014; 10(2):171-173 doi: 10.7438/1584-9341-10-2-17

Copyright: © 2014 Islam S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Abstract

Aim: A tension haemothorax is an uncommon injury after penetrating chest trauma.

Introduction: Anterior thoracic penetrating injuries may result in life-threatening complications. One of these is massive tension haemothorax with pericardial tamponade as a result of stab wounds to the internal mammary artery.

Presentation of a Case: We present a case in which a 55 year old man sustained multiple thoracic stab wounds. He had emergency right antero-lateral thoracotomy and laparotomy. A massive haemothorax secondary to complete disruption of right internal mammary artery and a laceration to middle lobe of right lung was noticed.

Conclusion: Penetrating thoracic injury with isolated internal mammary injury is a very rare cause of massive haemothorax and associated with high mortality. Emergent thoracotomy can be life-saving for these patients.

 

Case Report

A 55 year old chronic alcoholic, male presented to the San Fernando General Hospital of Trinidad and Tobago after sustaining multiple [1] stab wounds (SW) to the chest &upper abdomen [2]. He was in hypovoluemic shock with a blood pressure of 70/30 mm Hg and pulse rate of 140 beats per minute. Multiple [3] stab wounds were noted, in his right anterior chest wall medial to mid-clavicular line and one in left parasternal area at 4th ICS just cutting through the cartilage but not penetrating into the chest and two stab wound just below the tip of xyphoid process of sternum of which one is penetrating into abdomen (Figure 1).

surgery-Sites-of-Stab

Figure 1: Sites of Stab wound on chest and wound.

A right chest was placed and immediately drained 1200mls of blood FAST & CXR were done moment after arrival in ED. The FAST revealed no blood in pericardial sac, however minimal free fluid was noted in the abdomen. The CXR later on showed complete opacification of entire right lung (Figure 2).

surgery-right-hemi-thorax

Figure 2: PC x R AP showing complete white out of right hemi-thorax.ost

Right chest tube continue to drain blood with further drop in blood pressure of 40/25 mm Hg, immediately take to OR within 15- 20 minutes of arrival in ED. However, en-route to OR, patient had a sudden cardiac arrest which was successfully resuscitated with a minutes of CRP and proceeds immediately to the OR. The pleural cavity was entered through a right antero-lateral thoracotomy incision in the 4th intercostal space under aseptic condition (Figure 3).

surgery-thoracotomy-incision

Figure 3: Right antero-lateral thoracotomy incision.

Right hemothorax was confirmed with laceration of right internal thoracic artery with active bleeding and small 1x1cm laceration to middle lobe of right lung. The pericardium was felt empty with no evidence of blood in the pericardial cavity. The bleeding vessel was controlled initially by digital pressure and then ligated proximally and distally. Simple repair of lung laceration was done (Figure 4).

surgery-lung-laceration

Figure 4: Chest opened & Right IMA is clamped & suture ligated, repair of lung laceration.

A midline laparotomy revealed a 3 cm laceration to left lobe of live with no active bleeding and there were minimal blood in the peritoneal cavity with no other visceral injury. The chest and abdomen was closed respectively leaving a 32 size chest tube in right pleural cavity. The estimated blood loss was approximately 6 litres. Patient received multiple transfusions of blood and blood products. Patient was managed in ICU for 2 day and subsequently transferred to the surgical ward where he developed delirium tremens secondary to with drawl of alcohol. Patient recovered completely well from the incident and discharged home on 8th post-operative day.

Discussion

Injury to Internal mammary artery is infrequently reported in literature. It can be a result of penetrating or blunt trauma, both of rare in occurrence but still with serious consequences [4,5]. Others have described internal mammary injury that had occurred from central line insertion [5]. There are only five cases of isolated IMA injury patient with successful recovery after emergency thoracotomy has been reported in the literature

Among the 4 penetrating injuries two [6,7] were hemo-dynamically unstable & the next 2 [8] were hemodynamically stable. Only one patient had early [7] and next two patients had late pericardial tamponade [9,10] and last one [6] presented with early external pericardial tamponade. Of the 4 penetrating injuries patients only 2 had early [6,7] and 1 had delayed massive hemothorax [8] however, the next one had no massive hemothorax [9] Two of the penetrating injuries patients underwent median sternotomy [7,9] and the next two underwent anterolateral thoracotomy [6,8]. The lone blunt injury patient presented with delayed peri-cardial tamponade and was hemodynamically stable with no massive hemothorax and underwent median sternotomy [10] . Only one case has documented pre hospital arrest [6]. Our patient presented in a hemo-dynamically unstable condition with multiple stab wounds in the chest with massive tension hemothorax with early external cardiac tamponade. Our patient had a witnessed cardic arrest just moment before OR, was successfully resuscitated and underwent emergency thoracotomy with ligation IMA with an excellent full recovery (Table I).

Table I: Summary of the Review of literature of internal mammary artery injuries.

Study Mechanism of injury  Hemodynamic Pericardial Tamponade Massive Hemothorax Surgery   Outcome
Curley et al.(1987)[12] Penetrating         Unstable Early       Early  Sternotomy Alive
Vinces (2005) [6] Penetrating Stable   Delayed Delayed Thoracotomy Alive
Holt et al. (2005) [11] Penetrating Stable Delayed No Sternotomy Alive
Irgau et al. (1995) [8] Blunt Stable Delayed external No     Sternotomy Alive
Hassani (2012) [1] Penetrating  Unstable Early external Early  Thoracotomy Alive
Current case    Penetrating Unstable   Early external Early Thoracotomy  Alive

As noted from the above, the presentation of internal-mammary injury varies from relatively stable patient that can be studied in a timely manner to identify the source of hemothorax, to a delayed presentation of massive hemothorax that mandate thoracotomy [11,12] . The treatment depends on patient hemodynamic status. With simultaneous resuscitation with placement of a chest tube to immediately release the tension hemothorax is the first line of intervention in patient who has signs of life in ED. However, once cardiac arrest is witnessed 5 minutes prior to Ed or in ED ER thoracotomy should the performed, if there is a surgeon in the institution rendering the care. The injured internal mammary may be treated based on the clinical presentation. If patient is hemo-dynamically stable and facilities are available the angioembolization of the injured vessels are recommended.

Conclusion

Penetrating thoracic injury with isolated IMA injury is a very rare cause of massive haemothorax and associated with high mortality. Appropriate and Quick selections of the ideal patients for ED or OR Figure 3: Right antero-lateral thoracotomy incision.. thoracotomy are paramount important for successful outcomes.

Conflict of interest

The authors have no conflict of interest to report.

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