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What is sinoatrial block? Sinoatrial block is a heart rhythm disorder characterized by blocking electrical impulse conduction from the SA node (the origin of the normal electrical activity) and atria (upper chambers of the heart). Normal heartbeat is controlled by electrical signals that start in the sinoatrial node. The sinoatrial node is located at the […]
Cardiac arrest is an absolute emergency because the obstruction of the blood flow for 3-5 minutes is enough to cause irreversible brain damage. In this time, the diagnosis must be put, the gestures of resuscitation and life support insurance, followed by obtaining a spontaneous cardiac activity. In all cases, it is required the intervention of […]
Echocardiography is a diagnostic technique that uses ultrasounds to visualize the structure and function of the heart and also, the great vessels emerging from the heart. During the procedure a transducer (like a small microphone) emits ultrasounds (with a very high frequency, so they can not be heard by the human ear) that penetrate the […]
Overview of the procedure. Electrophysiology techniques that seek to define the mechanism of cardiac arrhythmias (heart rate accelerations) are entered into clinical practice for decades. These techniques involve recording local electrical activation of the heart as it exists at a time, or after trying to trigger arrhythmias by specific methods. For this study are […]
1. Tachycardia with narrowed QRS complex Indications: – In order to decrease conduction velocity and to increase the refractory period at the atrioventricular node level; – Decreased atrial refractory period; – Decrease in frequency electrical impulse formation in the sino-atrial node. 2. Exposure of the block location in case of atrioventricular block 2: 1 Indications: […]
Left coronary artery It starts with an ostium placed at the half of the left coronary sinus, heading for the left coronary sulcus, situated between the pulmonary artery trunk and left ears. After this short route, it usually divides into two branches: the left anterior descending artery and the circumflex artery. Sometimes it can be […]
Colon cancer is confirmed using the following diagnostic methods: – Rigid rectoscopy (rectal cancer); – Flexible Recto-sigmoidoscopy (recto-sigmoid neoplasm); – Colonoscopy; – Colonography – CT; – Hemocult test. Rigid rectoscope helps exploring the first 20-25 centimeters of the rectum and sigmoid colon. This method allows the diagnosis of rectum cancer. If this investigation is completed with […]
– Femoral arterial puncture is performed if INR <1.8; – In case of radial puncture can be accepted an INR <2.2; – Femoral arterial access is faster, easier technically but presents several complications; – Radial arterial access is more technically difficult, requires a greater experience of an interventionist but has few complications; – Making the […]
Natural Treatment for Hemorrhoids: for a natural treatment of hemorrhoids, primarily is done a colon enema with white oak bark tea, Myrica cerifera bark or Geranium maculatum root at a temperature of 39-40 degrees, which will clean its entire length. Make a concentrated tea with hazel bark and a teaspoon of catnip, half a tablespoon […]
Cardiovascular exercise testing is an investigation used to assess cardiac function. It may reveal the existence of coronary heart disease, unapparent on an electrocardiogram (ECG) at rest. During exercise the need for oxygen of the myocardium (heart muscle) is increased. If there is a narrowing of the coronary arteries (heart vessels) during exercise the increased […]