Acute ECG ST-segment elevation mimicking myocardial infarction in a patient with pulmonary embolism

Pulmonary embolism is a common cardiovascular emergency, but it is still often misdiagnosed due to its unspecific clinical symptoms. Elevated troponin concentrations are associated with greater morbidity and mortality in patients with pulmonary embolism. Right ventricular ischemia due to increased right ventricular afterload is believed to be underlying mechanism of elevated troponin values in acute pulmonary embolism, but a paradoxical coronary artery embolism through opened intra-artrial communication is another possible explanation as shown in our case report

Formation & evolution of the Ververonda Lagoon (Porto-Heli Region, SE Argolic Gulf) during historical times, on the basis of geophysical data and archeological information

The scope of the present contribution is to investigate the formation and evolution of the Ververonda ‘lagoon’ that belongs to the South Argolid peninsula (Porto Heli region) during the last transgression (Holocene) period. This is achieved by utilising existed information and the production of the appropriate supplementary data; the former refers to geology, seabed morphology and stratigraphy, relative sea-level rise and archeological evidences, while the latter involves in-situ coastal geomorphological mapping, analysis of surficial sediment samples, the collection of a sediment core and the application of geophysical techniques (e.g. electrical resistivity). On the basis of the interpretation of all the above information, it has been found that the Ververonda lagoon was formed after the 2(nd) century A.D. and has kept its lagoonal hydrological characteristic until the middle of the 20(th), century when two artificial channels permit exchange of water with the open bay. During the late Mesolithic period (ca. 6,000 years BC) the lagoon was coastal land with the bay of Ververonda being mach smaller in size. At the end of the Early Helladic period (some 2,000 years BC) the sea has invaded the inner part of the Ververonda Bay, covering most of the current lagoonal area. The sea have continued to rise, not necessarily with a stable rhythm, reaching a level of approx. 2 m below its present stage at Roman period (2,000 BP). At this period the lagoon was deeper while the ephemeral streams discharging along the northern side of Ververonda Bay (including the present lagoonal coast) provided substantial sediment influxes. Thus, over the last 2,000 years when sea-level was rising slowly, marine processes had formed gradually the barrier that separated eventually the inner part of the Bay forming the Ververonda lagoon; this process is estimated to have been concluded some hundred years ago. Human interference during the second half of the 20(th) century destroyed its lagoonal hydrological character by establishing free-communication with the open bay waters, through two artificially dredged channels

An Impression Technique for Preserving Interdental Papillae

An esthetic revolution is occurring in dental profession. The esthetic treatment enhances appearance, improve smiles, restore function and raise self esteem. This is now well known that both teeth and gums make good smile and good facial esthetic. Sometimes while doing treatment in esthetic zone, impression procedure can cause strangulation of interdental papilla, causing loss of papillae. This article therefore describes a new impression technique that involves the matrix impression system and “every other tooth” technique

Successful thrombolysis using recombinant tissue plasminogen activator in cases of severe pulmonary embolism with mobile thrombi in the right atrium

Hereby, we report two cases of acute pulmonary embolism with concomitant right-sided thrombus, which were successfully treated using recombinant tissue plasminogen activator (rtPA). These patients had life-threatening acute right ventricular failure, which dramatically improved within hours following thrombolysis. These cases emphasize the clinical utility of rtPA for the treatment of life-threatening pulmonary embolism