Prognostic Impact of Prehospital Simple Risk Index in Patients With ST-Elevation Myocardial Infarction.

BACKGROUND: The simple risk index recorded in the emergency room (ER-SRI), which is calculated using the formula (heart rate × [age / 10]2) / systolic blood pressure, was shown to be able to stratify the prognosis in ST-elevation myocardial infarction (STEMI) patients. However, the prognostic impact of the prehospital simple risk index (Pre-SRI) remains unknown.Methods and Results: This study enrolled 2,047 STEMI patients from the Mie Acute Coronary Syndrome (ACS) registry. Pre-SRI was calculated using prehospital data and ER-SRI was calculated using emergency room data. The primary endpoint was 30-day all-cause mortality. The cut-off values of Pre-SRI and ER-SRI for predicting 30-day mortality were 34.8 and 34.1, with accuracies of 0.816 and 0.826 based on receiver operating characteristic analyses (P<0.001 for both). There was no difference in the accuracy of the 2 indices. Multivariate Cox regression analysis demonstrated that a High Pre-SRI (≥34) was a significant independent predictor of 30-day mortality. With combined Pre-SRI and ER-SRI assessment, patients with High Pre-SRI/High ER-SRI showed significantly higher mortality than those with High Pre-SRI/Low ER-SRI, Low Pre-SRI/High ER-SRI, and Low Pre-SRI/Low ER-SRI (P<0.001). The addition of High Pre-SRI to High ER-SRI showed incremental prognostic value of the Pre-SRI. CONCLUSIONS: Pre-SRI can identify high-risk STEMI patients at an early stage and combined assessment with Pre-SRI and ER-SRI could be of incremental prognostic value for risk stratification in STEMI patients.

Impact of angiographic peri-stent contrast staining (PSS) on late adverse events after sirolimus-eluting stent implantation: an observation from the multicenter j-Cypher registry PSS substudy.

This study sought to assess clinical significance of angiographic peri-stent contrast staining (PSS) after sirolimus-eluting stent (SES) implantation in a large multicenter study with 5-year follow-up. The j-Cypher PSS substudy is a multicenter study including 5712 patients (7838 lesions) who underwent follow-up angiographic study within 12 months after SES implantation. Late acquired PSS was observed in 184 patients (3.2 %) or 194 lesions (2.5 %). Independent risk factors of PSS were chronic total occlusion and left anterior descending artery lesion, while negative risk factors were in-stent restenosis, diabetes mellitus, ≥70 years of age, and left circumflex coronary artery lesion. Cumulative incidence of definite very late stent thrombosis (VLST) at 4 years after the index follow-up angiography in lesions with PSS was significantly higher than that in lesions without PSS (5.3 versus 0.7 %, P < 0.0001). Late target-lesion revascularization (TLR) was also more frequently observed in the PSS group (13 versus 6.9 %, P = 0.01), while late TLR for restenosis excluding those TLR procedures for VLST tended to be higher in the PSS group (9.9 versus 6.3 %; P = 0.15). PSS found in 2.5 % of lesions within 12 months after SES implantation was associated with higher risk for subsequent VLST.

Right ventricular perforation caused by pulmonary artery catheter three days after insertion in a patient with acute pulmonary embolism.

A 68 year-old man presented with dyspnoea and chest pain. Computed tomography showed a massive bilateral pulmonary embolism. A 7.5 French pulmonary artery catheter (PAC) was inserted from the right internal jugular vein, and placed at the main pulmonary artery (PA) due to a thrombus in the distal PA. Continuous heparin sodium and urokinase infusions (240,000 units/day) were started. The PA pressure decreased gradually to within the normal range after two days. Three days after insertion, the PA waveform suddenly changed, he subsequently complained of chest pain, and the blood pressure rapidly decreased. Echocardiography demonstrated marked pericardial effusion. Computed tomography showed right ventricular perforation by the catheter, and contrast dye injection from the catheter tip demonstrated pericardial space enhancement. A median sternotomy was performed, and the perforation was detected in the anterior right ventricular wall. Direct buttress suture was placed, and the catheter was removed. He was subsequently discharged without any further complications. We encountered a rare case of postoperative RV perforation caused by a PAC. It is important to keep in mind that such a complication could arise not only during but also a few days after PAC insertion.

[Pulmonary septic embolism with right side infectious endocarditis and ventricular septal defect: a case report].

An 18-year-old man was diagnosed with ventricular septal defect after birth. He was asymptomatic until February 2006. He came to our hospital with remittent fever persisting for 2 months. Chest computed tomography showed multiple infiltrative shadows and alpha-streptococcus was detected on blood cultures. Transesophageal echocardiography detected vegetation (1.3 cm) on the right ventricle wall at the point of impact of the shunted bloodstream. We diagnosed pulmonary septic embolism and began to administer penicillin G and gentamicin. Sixteen days later, a new pulmonary septic embolism appeared, so antibiotic treatment was continued at a higher dose. Two weeks later, the vegetation and infiltrative shadow disappeared. Echocardiography showed the ratio of pulmonary to systemic blood flow was 1.2. These findings indicate that patch closure of ventricular septal defect may be necessary for prevention of recurrence of right side infectious endocarditis.