Octopus Tissue Stabilizer

catheter ostium

Fig. 8. Utilizing standard cardiac surgery procedures, the heart from a 70-kg swine was explanted to an isolated heart apparatus and reanimated. This preparation utilized a clear, crystalloid perfusate that allowed intracardiac visualization. Following in vitro stabilization, the heart was instrumented with 6-mm videoscopes (Olympus Industrial, Tokyo, Japan) and a 12-French 3D intracardiac echocardiography (ICE) catheter (Duke University, Durham, NC) via access ports in the superior vena cava, left pulmonary vein, aorta, and right atrial appendage. Simultaneous ultrasound (Volumetrics Medical Imaging, Durham, NC) and intracardiac video images of the coronary sinus ostium and the tricuspid, mitral, and aortic valves were recorded to time-synchronized Beta video decks (Sony Beta SP, Tokyo, Japan). (A) Real-time 3D ICE (RT3D ICE) image; (B) intracardiac visualization. The inferior vena cava and coronary sinus ostium are very distinct in the 3D ICE image (19).

Placement Coronary Sinus Catheter

Fig. 9. (A) The Model 5071 lead (Medtronic, Inc., Minneapolis, MN) is designed for ventricular pacing and sensing. (B) The Model 10626 (Medtronic, Inc.) is a single-use device indicated to facilitate placement of the Model 5071 pacing lead. The lead has application when permanent ventricular dual-chamber pacing systems are indicated. Two leads may be used for bipolar pacing.

Fig. 9. (A) The Model 5071 lead (Medtronic, Inc., Minneapolis, MN) is designed for ventricular pacing and sensing. (B) The Model 10626 (Medtronic, Inc.) is a single-use device indicated to facilitate placement of the Model 5071 pacing lead. The lead has application when permanent ventricular dual-chamber pacing systems are indicated. Two leads may be used for bipolar pacing.

Spider Filter Ev3

Fig. 10. The SPIDER Embolic Protection Device (ev3 Inc.) provides distal embolization protection in patients during general vascular use, including peripheral, coronary, and carotid interventions. It can be delivered by any guidewire of choice to initially cross the lesion; it has a Nitinol filter design that is HEPROTECâ„¢ coated for patency up to 60 min. The radiopaque gold proximal loop is designed to provide visualization of filter-to-vessel apposition, and there are five filter sizes to match the vessel size appropriately. With permission from ev3 Inc., Plymouth, MN.

Fig. 10. The SPIDER Embolic Protection Device (ev3 Inc.) provides distal embolization protection in patients during general vascular use, including peripheral, coronary, and carotid interventions. It can be delivered by any guidewire of choice to initially cross the lesion; it has a Nitinol filter design that is HEPROTECâ„¢ coated for patency up to 60 min. The radiopaque gold proximal loop is designed to provide visualization of filter-to-vessel apposition, and there are five filter sizes to match the vessel size appropriately. With permission from ev3 Inc., Plymouth, MN.

Octopus Tissue Stabilizers

Fig. 11. Tools for less-invasive surgery, that is, an open chest procedure in which the heart is not stopped. The Octopus 3 Tissue Stabilizer (Medtronic, Inc., Minneapolis, MN) is a pioneering and market-leading suction device, and the Starfish Heart Positioner (Medtronic, Inc.) has been shown to simplify cardiac positioning; both systems help minimize potential hemodynamic deterioration associated with less-invasive approaches.

Fig. 11. Tools for less-invasive surgery, that is, an open chest procedure in which the heart is not stopped. The Octopus 3 Tissue Stabilizer (Medtronic, Inc., Minneapolis, MN) is a pioneering and market-leading suction device, and the Starfish Heart Positioner (Medtronic, Inc.) has been shown to simplify cardiac positioning; both systems help minimize potential hemodynamic deterioration associated with less-invasive approaches.

the time and type of symptoms experienced, which are then later correlated with the ECG. In contrast, an external event recorder has a memory buffer that can store several weeks of symptom data. Instead of keeping a diary, the patient activates the recorder when symptoms occur; this latter approach is quite convenient for evaluating symptoms that occur infrequently.

A third type of device, an insertable loop recorder, is an implantable ECG recorder with a handheld, patient-controlled activator. The insertable loop recorder continuously records

ECGs. When symptoms occur, the patient activates the recorder, and the recorder stores the ECG for a preprogrammed period of time before and after activation. An insertable loop recorder is useful for patients with even more infrequent symptoms and who thus remain undiagnosed after an initial workup. Such an approach is also recommended to the patient for whom an external event recorder is impractical.

More specifically, the Reveal Plus (Medtronic, Inc.) is a second-generation insertable loop recorder; currently, it features autoactivation and is a high-yield, long-term, subcutaneous, leadless ECG monitor that offers continuous 14-month monitoring (Fig. 13). Such systems provide new diagnostic approaches for patients with transient symptoms that may suggest cardiac arrhythmias, including: (1) unexplained syncope, (2) near syncope, (3) episodic dizziness, (4) unexplained recurrent palpitation, and/or (5) seizures and convulsions (21) (www.seizuresandfainting.com).

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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