[Investigation of rescued cases with cardiac rupture caused by blunt trauma].

The mortality of cardiac rupture by blunt trauma is so high that quick diagnosis and appropriate treatment are essential for saving patients. Based on 8 such cases rescued in our hospital and on 70 other rescued cases reported in Japan, we review its treatment strategy. Ultrasound examination, particularly focused assessment with sonography for trauma (FAST), was useful for diagnosing traumatic cardiac rupture. It was, however, impossible to detect the exact site of rupture before surgery. Three quarters of the rescued cases suffered from right cardiac rupture and more than 95% of those were treated successfully without extracorporeal circulation. All the cases with multiple cardiac rupture needed cardiopulmonary bypass or percutaneous cardiopulmonary support (PCPS) for their surgeries. And so did a quarter of the cases with left cardiac rupture. The standard treatment strategy seems to be as follows:to release cardiac tamponade as slowly as possible, to set up an extracorporeal circulation for surgery, and to repair the ruptured heart via median sternotomy.

Barriers to inpatient palliative care consultation among patients with newly diagnosed cancer after emergency admission.

BACKGROUND: Many patients with advanced cancer diagnosed following emergency presentation will likely benefit from palliative care (PC) interventions. This study assessed the potential patient-related barriers to inpatient PC consultation among patients who were newly diagnosed with cancer after emergency admission (EA) and received only supportive care. METHODS: This observational study retrospectively obtained data on all patients who were admitted to our hospital after emergency transfer between January 2012 and November 2016. We identified patients for whom cancer was listed as the primary disease in the post-hospitalization discharge summary. Out of these patients, we selected those with newly diagnosed cancer and determined whether they were referred for inpatient PC consultation. RESULTS: This study recruited 141 patients with newly diagnosed cancer after EA (1.2% of all emergency transfer cases). Following diagnosis, the PC team intervened in 29.8% of all the patients enrolled in this study and in 53.3% of patients who received only supportive care. In patients who received only supportive care, the patients who were not referred for PC consultation were significantly more likely to have shorter survival time and less likely to receive disclosure about their cancer diagnosis than patients who were referred. CONCLUSIONS: According to this study, short survival time and no disclosure of cancer diagnosis are potential patient-related barriers to inpatient PC consultation among patients with newly diagnosed cancer after EA.

Postmortem computed tomography findings as evidence of traffic accident-related fatal injury.

PURPOSE: Most traumatic deaths in Japan are due to nonpenetrating injuries, especially those that result from traffic accidents; however, the autopsy rate of traffic accident-related deaths is only about 5%. We investigated the diagnostic ability of postmortem computed tomography (PMCT) in cases of fatal trauma after traffic accidents. MATERIALS AND METHODS: Our subjects were 78 subjects (59 males, 19 females; mean age 50 years, range 15-87 years) who were brought to our institution in cardiopulmonary arrest on arrival after traffic accidents and died despite resuscitation attempts. PMCT findings of damage to the head, neck, thorax, abdomen, and pelvis were classified into three grades according to the Abbreviated Injury Scale (AIS) severity: A: 1 (minor), 2 (moderate); B: 3 (serious), 4 (severe), 5 (critical); C: 6 (maximum). RESULTS: The percentage ratio of A/B/C in 78 head injuries was 32/60/8, in 41 neck injuries 83/5/12, in 76 thorax injuries 5/38/57, in 76 abdominal injuries 70/24/7, and in 76 pelvic injuries 79/21/0, respectively. CONCLUSION: PMCT can detect or presume fatal trauma when diagnosing the cause of death after traffic accidents.

Postmortem computed tomographic (PMCT) and postmortem magnetic resonance imaging (PMMRI) demonstration of fatal massive retroperitoneal hemorrhage caused by abdominal aortic aneurysm (AAA) rupture.

We report a case of fatal massive retroperitoneal hemorrhage caused by the rupture of an abdominal aortic aneurysm (AAA) in which postmortem computed tomography (PMCT) and postmortem magnetic resonance imaging (PMMRI) provided clear delineation. In this case, the autopsy imaging system using PMCT and PMMRI was useful as a screening method to determine the cause of death as AAA rupture and became a guide for the subsequent autopsy.

Cardiovascular gas on non-traumatic postmortem computed tomography (PMCT): the influence of cardiopulmonary resuscitation.

PURPOSE: The purpose of this study was to investigate the causes of cardiovascular gas (CVG) detected on non-traumatic postmortem computed tomography (PMCT). MATERIALS AND METHODS: PMCT was performed on 247 subjects within two hours of non-traumatic death, including 228 patients who had undergone cardiopulmonary resuscitation (CPR) and 19 patients who had not. We evaluated the incidence and distribution of CVG in four areas of the heart, namely, 1) the upper course of the right atrium (UC-RA), 2) the right atrium, 3) the right ventricle, and 4) the left heart (left atrium, left ventricle, and aorta). RESULTS: CVG was observed in 163 (71%) of the 228 patients who underwent CPR. In those 163 patients, we detected CVG in the UC-RA (103 patients), right atrium (81 patients), right ventricle (94 patients), and left heart (5 patients). Nineteen patients who received no CPR showed no CVG. CONCLUSION: CVG on non-traumatic PMCT is mainly caused by CPR, which is characterized by venous catheterization that permits possible air inflow and by pneumatization of dissolved gas in the blood as a result of cardiac massage.

Postmortem magnetic resonance imaging (PMMRI) demonstration of reversible injury phase myocardium in a case of sudden death from acute coronary plaque change.

We report a case of sudden death from acute coronary plaque change in which postmortem magnetic resonance imaging (PMMRI) detected reversible injury phase myocardium. Postmortem computed tomography (PMCT) of the chest showed diffuse ground-glass attenuation (GGA) in both lungs, suggesting pulmonary edema due to cardiac pump failure. T2-weighted imaging (T2WI) of PMMRI delineated the left anterior descending coronary artery (LAD) territory as showing high signal intensity relative to the remaining myocardium. Therefore, we presumed the cause of death was myocardial infarction (MI) of the LAD territory. Autopsy showed acute plaque change in the LAD, however, there were no indications of MI. In this case, autopsy imaging using PMCT and PMMRI was useful as a guide for autopsy.

Nontraumatic postmortem computed tomographic demonstration of cerebral gas embolism following cardiopulmonary resuscitation.

PURPOSE: The aim of this study was to investigate cerebral gas embolism (GE) on nontraumatic postmortem CT (PMCT), regarding its frequency, location (arterial or venous), and causes. MATERIALS AND METHODS: Our subjects were 404 nontraumatically deceased patients who had been in a state of cardiopulmonary arrest on arrival at our emergency room. PMCT was performed within 2 h of the confirmation of death. RESULTS: Cardiopulmonary resuscitation (CPR) was performed on 387 of the 404 subjects; and of these, cerebral GE was detected in 29 (7.5%) subjects (3 arterial, 25 venous, 1 undeterminable). Cerebral GE was not noted in the other 17 of the 404 subjects who did not undergo CPR. However, there was no significant difference in the incidence of cerebral GE between the subjects who underwent CPR and those who did not. The mechanism of cerebral arterial GE was presumed due to pulmonary barotrauma and/or paradoxical embolism, while the thoracic pump theory was suggested to explain the cerebral venous GE. CONCLUSION: Cerebral arterial/venous GE is found in CPR cases on nontraumatic PMCT.