Question 1

What preoperative assessments are essential before septal myectomy?

Accepted Answer

Preoperative assessments include documenting the patient's complete history, medications, and substance use. Evaluate the cardiovascular system by reviewing symptoms like chest pain, dyspnea, and palpitations. Conduct preoperative tests including chest X-rays, ECGs, coagulation studies, blood typing, and cross-matching. Pay special attention to blood glucose control in diabetic patients due to higher postoperative complication risks with hypertrophic cardiomyopathy.

Question 2

How should nurses prepare patients and families for septal myectomy surgery?

Accepted Answer

Provide specific education about medications, including cessation or continuation of anticoagulants and antihypertensive agents. Inform patients about postoperative equipment, tubes, and lines and their purposes. Allow patients and families to express concerns about pain, fear, disability, and body image changes. Practice deep breathing, coughing, incentive spirometry, and foot exercises to prepare for postoperative recovery.

Question 3

What hemodynamic parameters should be monitored immediately after septal myectomy?

Accepted Answer

Monitor arterial pressure, central venous pressure, pulmonary artery pressures, and pulmonary artery wedge pressure every 15 minutes until stable. Assess cardiac rhythm and rate continuously. Obtain serial readings to evaluate cardiac output, volume status, and vascular tone. After stabilization, monitor every 1 to 4 hours for the first 24 hours, then every 8 to 12 hours until discharge.

Question 4

What signs of cardiac tamponade should nurses watch for postoperatively?

Accepted Answer

Monitor for rising central venous pressure, hypotension, elevated pulmonary artery wedge pressure, pulsus paradoxus, and jugular vein distention. Assess for decreasing urinary output and diminished blood in the chest drainage collection system. These manifestations indicate potential cardiac tamponade requiring immediate intervention with diuretics or inotropic agents as prescribed.

Question 5

How do nurses manage fluid and electrolyte balance after septal myectomy?

Accepted Answer

Monitor fluid and electrolyte balance by assessing blood pressure, hemodynamic parameters, weight, serum electrolytes, hematocrit, and urinary output. Be alert to hypokalemia, which can cause dangerous arrhythmias like premature ventricular contractions and ventricular tachycardia. Evaluate nasogastric tube drainage and breath sounds to detect fluid imbalances or complications.

Question 6

What respiratory support measures are needed during postoperative recovery?

Accepted Answer

Maintain mechanical ventilation and monitor arterial blood gases, tidal volume, and peak inspiratory pressure. Auscultate breath sounds and sedate the patient as prescribed. Suction tracheobronchial secretions using aseptic technique to prevent infection. Assess extubation parameters and assist with weaning and removal of the endotracheal tube as the patient recovers.

Question 7

Why is chest tube patency critical after septal myectomy?

Accepted Answer

Chest tubes drain blood and fluid from the surgical site, preventing accumulation that could compromise cardiac function. Measure postoperative chest drainage regularly and ensure tubes remain patent and intact. Cessation of drainage may indicate a kinked or blocked tube, requiring immediate assessment. Maintaining proper drainage prevents complications like cardiac tamponade and hemothorax.

심근증 VII: 수술 전 및 수술 후 간호 관리

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