Each 100 mL of solution contains Calcium Chloride Dihydrate USP 17.6 mg, Magnesium Chloride, Hexahydrate USP 325.3 mg, Potassium Chloride USP 119.3 mg and Sodium Chloride USP 643 mg in Water for Injection, USP. May contain HCl and/or NaOH for pH adjustment.
What are cardioplegic drugs?
Cardioplegic Description. Baxter Cardioplegic Solution is a sterile, nonpyrogenic, essentially isotonic, formulation of electrolytes in Water for Injection, USP. It is a “core solution” intended for use only after addition of sodium bicarbonate to adjust pH prior to administration.
What is the purpose of cardioplegia?
Cardioplegia is an essential component of cardiopulmonary bypass and with the primary goal to reduce myocardial oxygen demand by creating electrical quiescence and cooling the heart to reduce the ischemic effects of being on bypass.
What is St Thomas solution?
St. Thomas solution is an extracellular, potassium-based cardioplegia solution that can be administered as a crystalloid solution or combined with a blood component. At the time, the addition of magnesium was unique to St. Thomas solution.How do you prepare for cardioplegia?
make the solution, add the following to 1 liter of dH 2 O while mixing using a magnetic stirrer: 0.99 g of glucose (5.50 mM), 0.13 g of magnesium sulfate (0.50 mM), 1.79 g of potassium chloride (24.00 mM), 1.68 g of sodium bicarbonate (20.00 mM), 6.37 g of sodium chloride (109.00 mM), 0.12 g of sodium phosphate …
What is cardioplegia made of?
Each 100 mL of solution contains Calcium Chloride Dihydrate USP 17.6 mg, Magnesium Chloride, Hexahydrate USP 325.3 mg, Potassium Chloride USP 119.3 mg and Sodium Chloride USP 643 mg in Water for Injection, USP.
Why potassium is used in cardioplegia?
Chemically, the high potassium concentration present in most cardioplegic solutions decreases the membrane resting potential of cardiac cells. The normal resting potential of ventricular myocytes is about -90 mV.
What is St Thomas cardioplegia?
St. Thomas’ cardioplegic solution No. 2 (ST) has been a popular crystalloid cardioplegia among cardiac surgeons; however, it must be administered repeatedly at short intervals during the surgery. Increases in myocardial acidosis between the doses have been noted, affecting the postoperative outcome adversely [2, 3].How does del Nido cardioplegia work?
The del Nido cardioplegia is delivered with 20% by volume fully oxygenated patient blood, which supports aerobic metabolism for a finite period of time and provides buffering properties to promote anaerobic glycolysis as well.
What is antegrade cardioplegia?Antegrade cannulae are designed to deliver cardioplegia solution to the heart via the coronary ostia in the normal direction of blood flow (antegrade perfusion). Medtronic offers both aortic root cannulae and coronary ostial cannulae.
Article first time published onWhere is cardioplegia injected?
A cross-clamp is applied to the ascending aorta, and the cardioplegia is administered into the aortic root in an antegrade fashion via the coronary ostia. Retrograde cardioplegia is used routinely in many institutions by infusion into the coronary sinus with backward filling of the cardiac veins.
What is asystole?
Asystole is also known as flatline. It is a state of cardiac standstill with no cardiac output and no ventricular depolarization, as shown in the image below; it eventually occurs in all dying patients.
What is cardioplegia infusion?
infusion is and what it is used for Sterile Concentrate for Cardioplegia Infusion is used during heart surgery to prevent the heart from beating (i.e. to induce cardioplegia). This medicine contains a combination of drugs; Magnesium Chloride, Potassium Chloride and Procaine Hydrochloride.
What are the types of cardioplegia?
One of the most important myocardial protection techniques is cardioplegia – indirect or direct administration of cardioplegic solution to the coronary arteries. Both crystalloid cardioplegia and blood cardioplegia are widely used in pediatric cardiac surgery [1–3].
What is cardioplegia delivery system?
Cardioplegia Delivery System Cardioplegia is the international and temporary cessation of cardiac activity, primarily used in cardiac surgery. As known as myocardial protection system, the product is designed for safer and more effective delivery of cardioplegia solution.
What is crystalloid cardioplegia?
Cardioplegia protects the heart from ischemic injury and postoperative heart failure during cardiopulmonary arrest period. Initially crystalloid cardioplegia was introduced as an agent to allow for hypothermic hyperkalemic arrest.
When is retrograde cardioplegia used?
Retrograde coronary sinus cardioplegia is being used for myocardial protection with ever-increasing frequency during complex cardiac operations. New methods for introducing cardioplegia into the coronary sinus have been facilitated by improved balloon-tipped catheters.
Who invented cardioplegia?
The term cardioplegia (cardio, heart and plegia, paralysis) was first introduced by Lam in 1957 (Lam et al., 1957), yet the method of arrest has its roots in the early experiments of British physiologist Sidney Ringer using the frog heart (Figure 2).
What causes stone heart?
Stone heart has occurred only during aortic valve replacement and/or coronary artery bypass procedures. Predisposing factors are chronic congestive heart failure and myocardial hypertrophy with fibrosis secondary to longstanding aortic valve disease and/or coronary artery occlusive disease.
Why does the heart stop in systole in hypercalcemia?
At the end of the action potential plateau, influx of calcium ions into muscle fibers is suddenly interrupted, and the calcium ions in the sarcoplasm are rapidly pumped back into the sarcoplasmic reticulum and t-tubules, thereby ending contraction until the next action potential.
How do you ReVerse cardioplegia?
The ReVerse cardioplegia circuit system is a description of a two-pump cardioplegia circuit which is adaptable to either blood or crystalloid cardioplegia. The change from one mode to another requires a manoeuvre of two clamps, allowing the blood solution to travel through shunt tubing into the apposite pumphead.
What is Custodiol cardioplegia?
Custodiol is an intracellular crystalloid cardioplegic solution used by some centres for myocardial protection in complex cardiac surgery and for organ preservation in transplant surgery.
When should I Redose del Nido cardioplegia?
The DN protocol was to administer 1000 to 1200 ml as an initial dose and to add maintenance dose(s) (500 ml each) every 60 minutes when the estimated cross-clamp time was over 90 minutes. CWB was given every 20 minutes, regardless of cross-clamp time.
What is del Nido solution?
A single dose of del Nido cardioplegia contains 26 mEq/L of potassium chloride, 13 mL of 1% lidocaine, 3.2 g/L of 20% mannitol, 2 g of 50% magnesium sulfate, 13 mEq/L of sodium bicarbonate, and 1000 mL of Plasma-Lyte A. It is delivered 1:4 with oxygenated patient’s blood to crystalloid (8–10).
What type of cardioplegia is del Nido?
Del Nido cardioplegic solution (DNC), a blood-and-crystalloid solution, is used as a single-dose antegrade infusion to induce rapid cardiac arrest and provide at least 90 minutes of myocardial protection in neonatal heart surgery.
What is aortic root?
The aortic root is the section of the aorta closest to and attached to the heart. An aneurysm is an abnormal bulge in the wall of an artery. If the aneurysm develops in the aortic root, the aorta can dilate and the aortic valve can leak (regurgitation).
What is aortic root vent?
Andocor aortic root cannulae are intended for use during cardiopulmonary bypass for antegrade delivery of cardioplegia solutions and venting of the heart. The cannula may also be used to aspirate air from te aorta at the conclusion of the cardiac procedure.
Where does the retrograde cannula go?
A retrograde cardioplegia cannula is inserted into the coronary sinus and an antegrade cannula is placed in the ascending aorta.
What are the 4 lethal heart rhythms?
You will need to be able to recognize the four lethal rhythms. Asystole, Ventricle Tachycardia (VT), Ventricle Fibrillation (VF), and Polymorphic Ventricle Tachycardia (Torsade de pointes).
Can you survive asystole?
Overall the prognosis is poor, and the survival is even poorer if there is asystole after resuscitation. Data indicate that less than 2% of people with asystole survive. Recent studies do document improved outcomes, but many continue to have residual neurological deficits.
Do you give atropine for asystole?
Atropine is inexpensive, easy to administer, and has few side effects and therefore can be considered for asystole or PEA. The recommended dose of atropine for cardiac arrest is 1 mg IV, which can be repeated every 3 to 5 minutes (maximum total of 3 doses or 3 mg) if asystole persists (Class Indeterminate).
