Journal of Emergencies, Trauma, and Shock
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Year : 2017  |  Volume : 10  |  Issue : 2  |  Page : 84-85
Oral injury due to blank shot of a rifle

Department of Acute Critical Care Medicine, Shizuoka Hospital, Juntendo University, Shizuoka, Japan

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Date of Submission11-Nov-2016
Date of Acceptance30-Nov-2016
Date of Web Publication3-Mar-2017

How to cite this article:
Jitsuiki K, Ishikawa K, Koike K, Yanagawa Y. Oral injury due to blank shot of a rifle. J Emerg Trauma Shock 2017;10:84-5

How to cite this URL:
Jitsuiki K, Ishikawa K, Koike K, Yanagawa Y. Oral injury due to blank shot of a rifle. J Emerg Trauma Shock [serial online] 2017 [cited 2021 Sep 19];10:84-5. Available from:

Dear Editor,

A 34-year-old male soldier, worried about instructing his subordinates, shot himself by inserting the muzzle of a Howa Type 89 assault rifle with an adapter attachment for continuous fire into his mouth with a blank cartridge. When emergency medical technicians checked him, he was in a restless state and was transferred to our hospital. His medical and family history was unremarkable. Upon arrival, his Glasgow Coma Scale score was 15. He had a blood pressure of 144/98 mmHg, a heart rate of 74 beats/min, and a SpO2 of 100% with mask of 6 L/min of oxygen. The physiological findings revealed the presence of soot and multiple sites of minor bleeding at the soft and hard oral palate. Oral computed tomography (CT) demonstrated residual material from the blank shot [Figure 1]. Conservative treatment with an antibiotic agent was selected for residual material such as grenade fragments. There were no complications such as abscess formation, and he was discharged on the seventh hospital day.
Figure 1: Oral computed tomography. Computed tomography revealed residual material induced by blank shot (arrow)

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To the best of our knowledge, this is the first CT image of residual material left behind by blank shot. Blank shot is typically used in gun-firing ceremonies and cinematography, and fatal accidents can occur in these situations.[1] For example, a residual bullet accidentally left in the gun can be pushed out by the energy from the blank shot, causing fatal wounds. Alternatively, the energy created by the blank shot of itself can damage human tissue.[2] When blank shot fired from a gun contacts the head, it can break the skull and damage the brain.[3],[4] When blank shot fired from a gun contacts the chest, it can break the sternum and damage the lungs and heart.[4] When blank shot is fired from a gun with its muzzle in the oral cavity, it can damage the tissues of the oral cavity, resulting in death due to deep aspiration of chyme with concurrent aspiration of blood.[5] The present patient shot himself with a gun to which an adapter attachment had been fixed, thus weakening the energy created by the explosion of gunpowder. The residual materials observed in this case may be fragments of the capsule of the gun powder or the adapter attachment.

Financial support and sponsorship

This manuscript received financial support from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) - Supported Program for the Strategic Research Foundation at Private Universities, 2015–2019 concerning (the constitution of total researching system for comprehensive disaster, medical management, corresponding to wide-scale disaster).

Conflicts of interest

There are no conflicts of interest.

   References Top

Welkos RW. Bruce Lee's Son, Brandon, Killed in Movie Accident. The Los Angeles Times. Available from: [Last retrieved on 2010 Dec 07].  Back to cited text no. 1
Gülsen I, Ak H, Sosuncu E, Bulut MD. Are blank cartridge guns really harmless? Ulus Travma Acil Cerrahi Derg 2014;20:214-6.  Back to cited text no. 2
Buyuk Y, Cagdir S, Avsar A, Duman GU, Melez DO, Sahin F. Fatal cranial shot by blank cartridge gun: Two suicide cases. J Forensic Leg Med 2009;16:354-6.  Back to cited text no. 3
Große Perdekamp M, Glardon M, Kneubuehl BP, Bielefeld L, Nadjem H, Pollak S, et al. Fatal contact shot to the chest caused by the gas jet from a muzzle-loading pistol discharging only black powder and no bullet: Case study and experimental simulation of the wounding effect. Int J Legal Med 2015;129:125-31.  Back to cited text no. 4
Bungardt N, Dettmeyer R, Madea B. Suicidal shot in the mouth with an unmodified blank cartridge pistol. Arch Kriminol 2005;216:1-6.  Back to cited text no. 5

Correspondence Address:
Youichi Yanagawa
Department of Acute Critical Care Medicine, Shizuoka Hospital, Juntendo University, Shizuoka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0974-2700.201583

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