CHAPTER 18 Intraoperative Care INTRAOPERATIVE C ARE (1 OF 2) • Historically, took place in OR • Now many are done as ambulatory surgery • ↑ Minimally invasive surgery (MIS) • Endoscopes • Robotics • Other advanced technology 2 INTRAOPERATIVE C ARE (2 OF 2) • MIS leads to decreased • Blood loss • Incision size • Pain • Recovery time • Hospital length of stay 3 PHYSIC AL ENVIRONMENT Surgical suite Unrestricted Zone Semi-restricted Zone Restricted Area Holding area Admission, Observation, Discharge (AOD) area • PACU • • • • • • 4 TRADITIONAL OPERATING ROOM Fig. 18-2 5 Physical Environment Operating room Filters Controlled airflow Positive air pressure Narrow range of temperature and humidity Strict protocols for cleaning UV lighting Adjustable, easy-to-clean, and easy-to-move furniture is used Equipment is checked for proper functioning and electrical safety Lighting provides low- to high-intensity for precise view of surgical site Communication system is used Copyright © 2020 by Elsevier, Inc. All rights reserved. 6 SURGICAL TEAM • Perioperative nurse • Is a registered nurse (RN) • Collaborates with rest of team • Three domains • Preoperative RN • OR RN (Circulating) • Serves as patient advocate throughout surgical experience • Postanesthesia care unit (PACU) RN Scrub nurse • Follows designated surgical hand antisepsis • Gowned and gloved in sterile attire • Prepares and manages the sterile field and instrumentation 7 Surgical Team Surgeon Physician who does the procedure Is responsible for • Preoperative medical history • Physical assessment • Directing preoperative testing • Postoperative management • Obtaining informed consent • Leading the surgical team Surgeon’s assistant can be a physician, RN first assistant (RNFA), PA, surgical resident or fellow, certified first assistant Holds retractors Helps with hemostasis and suturing May perform portions of procedure under surgeon’s direct supervision Copyright © 2020 by Elsevier, Inc. All rights reserved. 8 SURGICAL TEAM Anesthesia care provider (ACP) • Administers anesthetic agents • Manages vital life functions during perioperative period • Anesthesiologist has medical specialty • Nurse anesthetist (CRNA) has master’s or doctorate • Anesthesiologist assistant (AA) has master’s degree 9 SURGICAL ATTIRE Fig. 18-3 10 SURGICAL TEAM • Communication • Situation • Background • Assessment • Recommendations 11 TABLE 18.2 PAGE 316 COMMON PERIOPERATIVE NURSING ACTIVITIES 12 NURSING MANAGEMENT After surgery • ACP anticipates end of procedure • Gives proper types and doses of anesthetic agents so that effects will be minimal at end of surgery • ACP goes with patient to PACU • Hand-off includes • Patient’s status • Procedure done 13 ANESTHESIA 14 ANESTHESIA • Anesthetic technique and agents are chosen by the ACP • Contributing factors include • Physical and mental status • Age • Allergies and pain history • Expertise of the ACP • Factors related to the procedure 15 CLASSIFICATION OF ANESTHESIA • Moderate to deep sedation • Procedures done outside the OR • Presence of ACP not needed • May be administered by an RN under direct supervision of a physician 16 CLASSIFICATION OF ANESTHESIA Monitored Anesthesia Care (MAC) • Used for diagnostic or therapeutic procedures done in or outside the OR • Includes varying levels of sedation, analgesia, and anxiolysis • Must be administered by an ACP • Assessment and management of physiologic problems is critical 17 CLASSIFICATION OF ANESTHESIA General anesthesia • Total IV anesthesia (TIVA) • Newer inhalation agents • Used for • • • • Procedures of significant duration Need skeletal muscle relaxation Require uncomfortable operative positions Require control of ventilation 18 CLASSIFICATION OF ANESTHESIA General anesthesia • IV agents • Beginning of all routine general anesthesia • Hypnotic, anxiolytic, or dissociative agent • Induce sleep with rapid onset of action • Long enough for placement of LMA or ET tube 19 CLASSIFICATION OF ANESTHESIA General anesthesia • Inhalation agents • • • • • Volatile liquids or gases Easy administration and rapid excretion Irritating to respiratory tract Once initiated, use ET tube or LMA Complications include coughing, laryngospasm, and increased secretions 20 CLASSIFICATION OF ANESTHESIA General anesthesia • Rarely limited to one agent • Adjuncts • Drugs added to the anesthetic regimen • Synergistic or antagonistic effects • Dissociative anesthesia • Interrupt associative brain pathways while blocking sensory pathways • Ketamine (Ketalar) 21 CLASSIFICATION OF ANESTHESIA • Adjuncts to general anesthesia • Opioids • Sedation and analgesia • Induction and maintenance intraoperatively • Pain management postoperatively • Respiratory depression 22 CLASSIFICATION OF ANESTHESIA Adjuncts to general anesthesia • Benzodiazepines • Premedication for amnesia • Induction of anesthesia • Monitored anesthesia care 23 CLASSIFICATION OF ANESTHESIA Adjuncts to general anesthesia • Neuromuscular blocking agents • Facilitate endotracheal intubation • Relaxation/paralysis of skeletal muscles • Interrupt transmission of nerve impulses at neuromuscular junction 24 CLASSIFICATION OF ANESTHESIA Neuromuscular blocking agents • Classified as depolarizing or nondepolarizing muscle relaxants • Duration of effects may be longer than the procedure • Reversal agents may not be effective in eliminating residual effects 25 CLASSIFICATION OF ANESTHESIA Neuromuscular blocking agents • Observe closely for airway patency and adequacy of respiratory muscle movement • Lack of movement or poor return of reflexes and strength may indicate need for ventilator 26 CLASSIFICATION OF ANESTHESIA Adjuncts to general anesthesia • Antiemetics • Prevent nausea and vomiting associated with anesthesia 27 CLASSIFICATION OF ANESTHESIA Local anesthesia • Loss of sensation without loss of consciousness • Types • • • • Topical Ophthalmic Nebulized Injectable 28 CLASSIFICATION OF ANESTHESIA Regional anesthesia (Block) • Injection to a central nerve or group of nerves • Innervates a site remote to the point of injection • Used as preoperative analgesia, during surgery, and after surgery 29 CLASSIFICATION OF ANESTHESIA Local and regional anesthesia • Little systemic absorption • Rapid recovery • Discharge with continued postoperative analgesia • No accompanying cognitive dysfunction 30 CLASSIFICATION OF ANESTHESIA Regional anesthesia • Disadvantages • Possible technical problems • Discomfort at injection site • Inadvertent vascular injection leading to local anesthetic systemic toxicity (LAST) • Confusion, metallic taste, dizziness • Seizures, coma, and dysrhythmias may occur 31 CLASSIFICATION OF ANESTHESIA Methods of administration • Topical • Apply 30 to 60 minutes before procedure • Local infiltration • Inject agent into tissues through which incision will pass 32 CLASSIFICATION OF ANESTHESIA Methods of administration • Regional nerve block • RN may aid ACP in administering block • Must be familiar with drugs, including • Methods of administration • Adverse and toxic effects • Properly position the patient, monitor vital signs, apply oxygen therapy, and use supporting devices 33 CLASSIFICATION OF ANESTHESIA Methods of administration • Spinal anesthesia • Injection of local anesthetic into CSF in the subarachnoid space • Usually below L2 • Autonomic, sensory, and motor blockade 34 SPINAL AND EPIDURAL ANESTHESIA Fig. 18-6 35 CLASSIFICATION OF ANESTHESIA Methods of administration • Epidural block • Injection of local anesthetic into epidural space • Does not enter CSF • Binds to nerve roots as they enter and exit the spinal cord • Sensory pathways blocked but motor fibers are still intact 36 CLASSIFICATION OF ANESTHESIA Spinal and epidural anesthesia • Observe closely for signs of autonomic nervous system (ANS) blockade • Bradycardia • Hypotension • Nausea/vomiting 37 GERONTOLOGIC CONSIDERATIONS • Anesthetic drugs need be carefully titrated • Postoperative delirium common • Possible communication difficulties • Risk for injury from tape, electrodes • Osteoporosis or osteoarthritis 38 C ATASTROPHIC EVENTS IN THE OR Anaphylactic reactions • Anesthetic agents, antibiotics, and latex may cause allergic reactions • Vigilance and rapid intervention are essential • Symptoms include hypotension, tachycardia, bronchospasm, pulmonary edema 39 C ATASTROPHIC EVENTS IN THE OR Malignant hyperthermia (MH) • Rare disorder • Autosomal dominant trait • Inherited hypermetabolism of skeletal muscle resulting in altered control of intracellular calcium 40 C ATASTROPHIC EVENTS IN THE OR • Malignant hyperthermia • Succinylcholine (Anectine), especially given with volatile inhalation agents, is primary trigger • Other factors include stress, trauma, and heat • Usually occurs under general anesthesia but may also occur in recovery 41 C ATASTROPHIC EVENTS IN THE OR Malignant hyperthermia • Tachycardia • Tachypnea • Hypercarbia • Ventricular dysrhythmias • Rise in body temperature NOT an early sign • Can result in cardiac arrest and death 42 C ATASTROPHIC EVENTS IN THE OR • Malignant hyperthermia • Definitive treatment is prompt administration of Dantrolene • Slows metabolism • Reduces muscle contraction • Mediates catabolic processes • Prevention includes taking careful family history 43