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Ryeok Ahn 5 Articles
Clinical Characteristics of Unstable Pelvic Bone Fractures Associated with Intra-abdominal Solid Organ Injury
Sang Won Lee, Sun Hyu Kim, Eun Seog Hong, Ryeok Ahn
J Korean Soc Traumatol. 2012;25(1):1-6.
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AbstractAbstract PDF
PURPOSE
This study analyzed the characteristics of unstable pelvic bone fractures associated with intraabdominal solid organ injury.
METHODS
Medical records were retrospectively collected from January 2000 to December 2010 for patients with unstable pelvic bone fractures. Unstable pelvic bone fracture was defined as lateral compression types II and III, antero-posterior compression types II and III, vertical shear and combined type by young classification. Subjects were divided into two groups, with (injured group) and without (non-injured group) intra-abdominal solid organ injury, to evaluate whether the characteristics of the fractured depended on the presence of associated solid organ injury. Data included demographics, mechanism of injury, initial hemodynamic status, laboratory results, revised trauma score (RTS), abbreviated injury scale (AIS), injury severity score (ISS), amount of transfusion, admission to the intensive care unit (ICU), and mortality.
RESULTS
The subjects were 217 patients with a mean age of 44 years and included 134 male patients(61.8%). The injured group included 38 patients(16.9%). Traffic accidents were the most common mechanism of injury, and lateral compression was the most common type of fracture in all groups. The initial blood pressure was lower in the injured group, and the ISS was greater. The arterial pH was lower in the injured group, and shock within 24 hours after arrival at the emergency department was more frequent in the injured group. The amount of the transfused packed red blood cells within 24 hours was higher in the injured group than the non-injured group. Invasive treatment, including surgery and angiographic embolization, was more common in the injured group, and the stay in the ICU was longer in the injured group.
CONCLUSION
A need exists to decide on a diagnostic and therapeutic plan regarding the possibility of intraabdominal solid organ injury for hemodynamically unstable patients with unstable pelvic bone fractures and multiple associated injuries.
Summary
Characteristics of Stable Pelvic Bone Fractures with Intra-abdominal Solid Organ Injury
Sang June Park, Sun Hyu Kim, Jong Hwa Lee, Ryeok Ahn, Eun Seog Hong
J Korean Soc Traumatol. 2010;23(2):57-62.
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AbstractAbstract PDF
PURPOSE
This study analyzed the characteristics of stable pelvic bone fractures with intra-abdominal solid organ injury.
METHODS
Medical records were retrospectively reviewed from January 2000 to December 2009 of patients with stable pelvic bone fractures. A stable pelvic bone fracture according to Young's classification is defined as a lateral compression type I and antero-posterior compression type I. Subjects were divided into two groups, one with (injured group) and one without (non-injured group) intra-abdominal solid organ injury, to evaluate the dependences of the characteristics on the presence of an intra-abdominal solid organ injury. Data including demographics, mechanism of injury, initial hemodynamic status, laboratory results, Revised Trauma Score (RTS), Abbreviated Injury Scale (AIS), Injury Severity Score (ISS), amount of transfusion, admission to intensive care unit (ICU), and mortality were analyzed.
RESULTS
The subjects were 128 patients with a mean age of 42 years old, of whom were 67 male patients (52.3%). The injured group had 21 patients(16.4%), and the most frequent injured solid organ was the liver. Traffic accident was the most common mechanism of injury and lateral compression was the most common type of fracture in all groups. Initial systolic blood pressure was lower in the injured group, and the ISS was greater in the injured group. Arterial pH was lower in the injured group, and shock within 24 hours after arrival at the emergency department was more frequent in the injured group. Transfused packed red blood cells within 24 hours were 8 patients(38.1%) in the injured group and 11 patients(10.3%) in the non-injured group. Conservative treatment was the most common therapeutic modality in all groups. Stay in the ICU was longer in the injured group, and three mortalities occurred.
CONCLUSION
There is a need to decide on a diagnostic and therapeutic plan regarding the possibility of intra-abdominal solid organ injury for hemodynamically unstable patients with stable pelvic bone fractures and for patients with stable pelvic bone fractures along with multiple associated injuries.
Summary
Comparison of Intraperitoneal and Retroperitoneal/Pelvic Contrast Extravasation: The Characteristics and Prognosis of the Each Patient Group with Arterial Embolization according to the Abdominal Computed Tomography Scanning after Blunt Trauma
Ji Young Yoon, Sun Hyu Kim, Ryeok Ahn, Jae Cheol Hwang, Eun Seog Hong
J Korean Soc Traumatol. 2009;22(2):199-205.
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AbstractAbstract PDF
PURPOSE
This study compared the characteristics of and the prognosis for intraperitoneal and retroperitoneal/pelvic contrast extravasation, which had been confirmed by enhanced abdominal CT scan, after blunt trauma in patients who had undergone angiographic embolization.
METHODS
From January 2001 to March 2009, data were retrospectively collected regarding patients who had undergone contrast extravasation (CE) on CT scanning and arterial embolization after blunt trauma. The study patient group was divided into the intraperitoneal and the retroperitoneal/pelvic groups according to the area of contrast extravasation. We reviewed the initial demographic data, the location of injury, the solid organ injury, the embolized vessel, and the clinical outcome.
RESULTS
The mean age of the study subjects was 40.2+/-2.6 years old, and there were 24 male patients. The intraperitoneal group included 10 patients, and retroperitoneal/pelvic group was comprised of 17 patients. The amount of transfusion from presentation to intervention and during the first 24 hours was greater in the retroperitoneal/pelvic group than in the intraperitoneal group. The intraperitoneal group showed a higher frequency and severity of liver injury than the retroperitoneal/pelvic group. Angiography revealed that the hepatic artery (n=4) was the most frequently embolized vessel in the intraperitoneal group, while the internal iliac artery (n=6), followed by the renal artery (n=4), internal pudendal artery (n=3), and the gluteal artery (n=2), were the most frequently injured vessels in the retroperitoneal/pelvic group.
CONCLUSION
In patients with intra-abdominal contrast extravasation found on CT scanning and arterial embolization after blunt trauma, the need for transfusion was less in the intra-abdominal group than in the retroperitoneal/pelvic group. Liver injury was also more frequent and severe in the intraperitoneal group than in the retroperitoneal/pelvic group.
Summary
Comparison of Survival in Pelvic Bone Fractures with Arterial Embolization
Woo Youn Kim, Eun Seok Hong, Jung Seok Hong, Ryeok Ahn, Jae Cheol Hwang, Sun Hyu Kim
J Korean Soc Traumatol. 2008;21(1):46-52.
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AbstractAbstract PDF
PURPOSE
This study was to evaluate the effect of arterial embolization on survival in patients with pelvic bone fractures and arterial bleeding.
METHODS
From January 2001 to December 2007, in all, 18 patients with pelvic bone fractures that had been treated with interventional arterial embolization were included in this retrospective study. The Injury Severity Score (ISS), the Revised Trauma Score (RTS), the initial hemodynamic status, the blood gas analysis, blood transfusion data, and mortality were the main outcome measurements.
RESULTS
Pelvic bone fractures were classified into lateral compression (LC), antero-posterior compression (APC), vertical shear (VS), and combined (CM) type according to the Young-Burgess classification. The Survivor group included 11 patients (61.1%), and the non-survivor group included 7 patients (38.9%). The mean ages for the survivor and the non-survivor groups were 40.0 and 45.6 years (p=0.517). The types of pelvic bone fractures were LC 11 (61.1%), APC 6 (33.3%), and VS 1 (5.6%): LC 7 (63.6%), and APC 4 (36.4%) in the survivor group and LC 4 (57.1%), APC 2 (28.6%), and VS 1 (14.3%) in the non-survivor group. The internal iliac artery was the predominant injured vessel among both the survivors (n = 5, 45.5%) and the non-survivors (n = 4, 57.1%). No differences in initial blood pressures, ISS, and RTS existed between the two groups, but the arterial pH was lower in the non-survivor group (pH 7.09 (+/-0.20) vs 7.30 (+/-0.08), p=0.018). The number of transfused 24-hour units of packed RBC was greater in the non-survivor group (24.1+/-12.5 vs 14.4+/-6.8, p=0.046).
CONCLUSION
No differences in initial blood pressure and trauma scores existed between survivors and nonsurvivors with pelvic bone fractures, who had been treated with arterial embolization, but arterial pH was lower the in non-survivors.
Summary
Are Falls of Less Than 6 Meters Safe?
Young Woo Seo, Jung Seok Hong, Woo Yun Kim, Ryeok Ahn, Eun Seok Hong
J Korean Soc Traumatol. 2006;19(1):54-58.
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AbstractAbstract PDF
PURPOSE
The committee on trauma of the american college of surgeons, in its manual resources for optimal care of the injured patients involved in falls from less than 20 feet need not be taken to trauma centers. Because triage criteria dictate less urgency for low-level falls, this classification scheme has demerits for early detection and treatment of serious problems in the emergency room.
METHODS
A prospective analysis was conducted of 182 patients treated for fall-related trauma from June 2003 to March 2004. Falls were classified as group A (<3 m), group B (> or =3 m, <6 m), and group C (> or =6 m). Collected data included the patient's age, gender, site and height of fall, surface fallen upon, body area of first impact, body regions of injuries, Glasgow Coma Scale (GCS), Revised Trauma Score (RTS), and Injury Severity Score (ISS).
RESULTS
The 182 patients were classified as group A (105) 57.7%, group B (61) 33.5%, and group C (16) 8.8%. There was a weak positive correlation between the height of fall and the patients'ISS in the three groups (p<0.001). There were significant differences in GCS (p=0.017), RTS (p=0.034), and ISS (p=0.007) between group A and B. In cases that the head was the initial impact area of the body, the GCS (p<0.001) and the RTS (p=0.002) were lower, but the ISS (p<0.001) was higher than it was for other type of injuries. Hard surfaces as an impact surface type, had an influence on the GCS (p<0.001) and the ISS (p=0.025).
CONCLUSION
To simply categorize patients who fall over 6 meters as severely injured patients doesn't have much meaning, and though patients may have fallen less than 6 meters, they should be categorized by using the dynamics (impact surface type, initial body-impact area) of their fall.
Summary

J Trauma Inj : Journal of Trauma and Injury