Anesthesia Management for Asymptomatic Aortic Narrowing

Case Report

Austin Cardio & Cardiovasc Case Rep. 2023; 8(3): 1061.

Anesthesia Management for Asymptomatic Aortic Narrowing

Walid Atmani*; Ayoub Boubekri; Ilyass Hamadat; Jaafari Abdelhamid; Hicham Balkhi; Mustapha Bensghir

Pole Anesthésie-Réanimation Hôpital Militaire d’Instruction Mohamed V, Rabat, Morocco

*Corresponding author: Walid Atmani Pole Anesthésie-Réanimation Hôpital Militaire d’Instruction Mohamed V Rabat, Morocco. Email: atmani.walid@gmail.com

Received: August 12, 2023 Accepted: September 25, 2023 Published: October 02, 2023

Abstract

An 80-year-old patient admitted to the emergency department for a fracture of the lower extremity of the femur. The clinical examination reveals a stable patient with normal hemodynamic, respiratory, and neurological status. There are no medical history records. The pre-anesthetic evaluation is unremarkable with normal test results. The patient is transported to the operating room, and after spinal anesthesia, experiences hemodynamic instability due to a tight asymptomatic mitral stenosis observed during the clinical examination.

Introduction

Calcified aortic stenosis (AOR) is the most common valve disease indeveloped countries and its prevalence is constantly increasing reaching 2.8% of patients over 75 years old [1], which represents a real public health problem due to the aging of the population [1]. The classic symptoms of severe RAo (angina, dyspnea and syncope) occur at an advanced stage of the disease [2].

In these elderly patients, the diagnosis and care are sometimes delayed. The symptomatology is difficult to assess in patients who are often physically limited, by age and the presence of associated comorbid factors. This population, so-called asymptomatic, is composed, in half of the cases, of patients “False asymptomatic”; it must be unmasked by a stress test if this is possible [3,4] and by the dosage of biomarkers [5,6], in order not to not ignore a low noise RAC which could have benefited from treatment surgical. These little-known patients will progress slowly towards the cardiac decompensation.

The role of the anesthetist is major in the risk assessment either the RA is already known and all elements must be gathered (in particular ETT<6 months-1 year) which will allow the decision to be taken; or the RA is suspected before the discovery of an unknown breath and the first step will be to confirm (or to rule out) the diagnosis by an essential ETT [7].

Observation

An 80-year-old patient was admitted to the emergency department with a fracture of the distal femur. Upon admission, the patient was stable with a Heart Rate (HR) of 80 beats per minute, Blood Pressure (BP) of 12/7 cmHg, and oxygen saturation (SpO2) of 99% on room air.

Clinical Examination

• Cardiac examination: Regular sinus rhythm with no rhythm or conduction disturbances. No murmurs or additional sounds on auscultation.

• Respiratory examination: No crackles, and the patient is stable.

• Neurological examination: The patient is conscious with no focal neurological deficits.

• Additionally, the patient is experiencing pain related to the fracture, showing signs of lower limb trauma.

Upon admission to the emergency department, a preoperative assessment was performed, and analgesics were administered. The pre-anesthetic evaluation determined the patient as ASA 1, an 80-year-old without dyspnea, and a superior functional capacity (4 METs achieved previously). There are no criteria for difficult intubation or ventilation. The patient is deemed suitable for surgery, with a preoperative fasting time of 6 hours.

In the operating room: The patient is positioned on a heated operating table with standard monitoring, including a cardiac scope, 3-lead ECG, pulse oximeter, and non invasive blood pressure monitoring. A fluid resuscitation with normal saline (0.9%) is initiated. The patient is placed in a sitting position for a spinal anesthesia procedure after thorough aseptic preparation. A trocar is introduced at the L4-L5 level, and 12.5 mg of bupivacaine, 25 mcg of fentanyl, and 100 mcg of morphine are injected.

Citation: Atmani W, Boubekri A, Hamadat I, Abdelhamid J, Balkhi H, et al. Anesthesia Management for Asymptomatic Aortic Narrowing. Austin Cardio & Cardiovasc Case Rep. 2023; 8(3): 1061.