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Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center Durham, North Carolina

Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

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Page 1: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Multimodal Pain Management

Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology

Vice Chairman Clinical ResearchDuke University Medical Center

Durham, North Carolina

Page 2: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

It is the policy of The France Foundation to ensure balance, independence, objectivity, and scientific rigor in all its sponsored educational activities. All faculty, activity planners, content reviewers, and staff participating in this activity will disclose to the participants any significant financial interest or other relationship with manufacturer(s) of any commercial product(s)/device(s) and/or provider(s) of commercial services included in this educational activity. The intent of this disclosure is not to prevent a person with a relevant financial or other relationship from participating in the activity, but rather to provide participants with information on which they can base their own judgments. The France Foundation has identified and resolved any and all conflicts of interest prior to the release of this activity.

Dr. Gan has received grants/research support from Acacia, Baxter, Durect, Eisai, and NICOM. He has received honoraria from Baxter, Eisai, Fresenius, Hospira, and Xanodyne.

Faculty Disclosure

Page 3: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Educational Learning Objectives

• Describe the importance of improving time to gastrointestinal recovery that occurs postsurgery and consider how this affects length of hospital stay and overall quality of patient care

• Evaluate the evidence for therapeutic options that may improve gastrointestinal recovery postsurgery and integrate these efforts toward supporting overall surgical quality measures

• Describe how interprofessional collaboration surrounding gastrointestinal surgery can result in better alignment with current surgical quality measures and formulate strategies to integrate this into current practice

Page 4: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Patient Case

• 65-year-old man, 95 kg, with a history of biopsy positive cancer of the rectum

• Scheduled for a left hemicolectomy• Past medical history

– Non-insulin dependent diabetes– Hypertension– Chronic back pain

Page 5: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Previous surgery – Appendectomy– Knee arthroscopy– ACL repair

• Social history– Occasional drinker– Nonsmoker

Patient Case – Medical History

Page 6: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Medication history– Vicodin® 1 tab TID– Ibuprofen PRN– Atenolol 50 mg OD– Multivitamin daily– Gliclazide 30 mg

Patient Case – Medical History

Page 7: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Patient scheduled for partial colectomy • Anesthetic

– General anesthesia– Fentanyl 100 mcg and midazolam 3 mg as

premedication– Induction with propofol, anesthetic maintained with

sevoflurane, air and oxygen– Rocuronium as the neuromuscular blocker– Ondansetron as prophylactic antiemetic

Patient Case – Anesthetic Plan

Page 8: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Surgery duration 3.5 hrs• Patient extubated and transferred to PACU• Postoperative pain management

– Patient-controlled analgesia (PCA) with morphine, with 2 mg bolus, 8 min lockout and 30 mg 4 hr maximum dose

• In the PACU, complained of pain 9/10 on a verbal rating scores (VRS) of 0-10

Patient Case – Postoperative Pain Management

Page 9: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Does the use of systemic opioids contribute to postoperative ileus?

Opioids and Postoperative Ileus

Page 10: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Opioid-based Analgesia and Bowel Function

• 40 colectomy patients– Correlation between

morphine PCA dose and first bowel sounds (P = 0.001), flatulence, (P = 0.003), and first bowel movement (shown, P = 0.002)

– No correlation between incision length and morphine dose

• ICD-9-CM coded POI correlates with systemic morphine (OR = 12.1; 95% CI, 5.4-27.1)

Hours to First Bowel Movement

R = 0.48P = 0.002

Total Morphine (mg) 350.0

300.0

250.0

200.0

150.0

100.0

50.0

0

40 60 80 100 120 140 160 180

Cali RL, et al. Dis Colon Rectum. 2000;43:163-168. Goettsch WG, et al. Pharmacoepidemiol Drug Saf. 2007;16:668-674.

Page 11: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• While opioids are often the analgesic of choice following abdominal surgery, they decrease gastric motility, inhibit small and large

intestinal propulsion, and have other GI effects that contribute to the abdominal discomfort associated with POI

Postoperative Analgesia and Postoperative Ileus

Page 12: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

What would you do?

A. Change to a different opioid in the PCA

B. Add ketorolac

C. Insert an epidural

D. Boluses of morphine

Postoperative Pain Management

Page 13: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Postoperative Pain Management

There are a number of possible options.

The following slides provide some evidence to support the use of nonsteroidal anti-inflammatory drugs and epidurals as opioid-sparing approaches.

Page 14: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Opioid-sparing Effects of Ketorolac – Postoperative Bowel Function in Colorectal Surgery Patients

Chen JY, et al. Clin J Pain. 2009;25:485-489.

M: IV patient-controlled analgesia morphine M+K: IV patient-controlled analgesia morphine plus ketorolac

Page 15: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Epidural Analgesia and Duration of Postoperative Ileus

Adapted from Person B, Wexner S. Curr Probl Surg. 2006;43:12-65.

Study Surgery Earlier Gas Earlier Stool *P-value

Hjortso et al, 1985 Major abdominal No No NS

Wallin et al, 1986 Major abdominal No No NS

Scheinin et al, 1987 Colonic --- Yes < 0.05

Ahn et al, 1988 Colorectal Yes Yes < 0.001

Bredtmann et al, 1990 Colonic --- Yes < 0.001

Jayr et al, 1993 Major abdominal Yes --- < 0.05

Morimoto et al, 1995 Proctocolectomy/IPAA --- Yes < 0.01

Liu et al, 1995 Colonic Yes Yes < 0.005

Scott et al, 1996 Proctocolectomy/IPAA Yes Yes < 0.05

Bradshaw et al, 1998 Colorectal Yes Yes < 0.001

Welch et al, 1998 Gastrointestinal No No NS

Neudecker et al, 1999 Laparoscopic sigmoidectomy --- No NS

Carli et al, 2001 Colorectal Yes Yes < 0.001

Carli et al, 2002 Colonic Yes Yes < 0.01

Steinberg et al, 2002 Colonic Yes Yes < 0.002

*Compared with systemic analgesic regimens;IPAA: ileal pouch anal anastomosis

Page 16: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Meta-analysis of Epidural Analgesia (EA) vs Opioid Parenteral Analgesia after Colorectal Surgery

Marret E, et al. Br J Surgery. 2007;94:665-673.

• 16 randomized, controlled trials (1987-2005) compared postoperative epidural analgesia (local anesthetic) with parenteral opioid analgesia in patients following colorectal surgery– Length of hospital stay: no statistically significant difference between

the groups– Pain intensity: Lower visual analog scale pain scores at 24 and 48

hours with EA (P < 0.001)– Duration of postoperative ileus: reduced by 36 hr with EA (P < 0.001)– Anastomotic leak and cardiopulmonary complications: no significant

difference between groups– Hypotension, pruritus, and urinary retention were more common in the

EA group

Page 17: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• The use of epidural analgesia and nonsteroidal anti-inflammatory drugs (NSAIDs) for

postoperative pain management both help to minimize postoperative opioid consumption. Along with providing pain relief, these strategies

help to minimize opioid-related GI dysfunction. Both approaches are associated with a reduction in the duration of postoperative ileus compared with parenteral opioids

Postoperative Pain Management – Opioid-sparing Strategies

Page 18: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Treatment– Added ketorolac 15 mg– Gave bolus dose of morphine 6 mg (in 2 mg aliquots)– Increased PCA dose of morphine to 3 mg per push

Patient Case – Postoperative Pain Management

Page 19: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Patient’s pain score is 7/10• Complaint of persistent nausea and 2 episodes

of retching• Itching of the front of chest and back• Treatment

– Promethazine 12.5 mg– Meperidine 25 mg

Patient Case – Postoperative Day 1

Page 20: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Day 3 after surgery, pain range between 4/10 to 8/10. Still on PCA morphine, not helping too much

• 5 doses of ketorolac, maximum doses given• Still complains of nausea • Used 70 mg morphine on first 24 hrs and 80 mg

over the next 24 hrs

Patient Case – Postoperative Day 3

Page 21: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• No bowel sounds, no flatus, no bowel movement• Abdomen slightly distended • Nasogastric tube drained yellowish fluid• Persistent nausea• Drowsiness and slight confusion

Patient Case – Postoperative Day 4

Page 22: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

What would you do?A. Additional boluses of morphine

B. Start a morphine infusion via the PCA

C. Change to a different opioid

D. Insert an epidural

Postoperative Pain Management

Page 23: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Since the patient had not responded well to fairly large doses of morphine, starting an infusion or further boluses of morphine would not be helpful. Some patients may respond better to a different opioid with a lower incidence of side effects. Hence this could be a viable option. Insertion of an epidural at this stage may also be considered if there are no other contraindications.

Postoperative Pain Management

Page 24: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Pain team consulted• Change to hydromorphone PCA• Started celecoxib 200 mg BID

Patient Case – Postoperative Pain Management

Page 25: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Postoperative Day 7: presence of flatus and bowel sounds

• Advanced diet to semi-solid• Continue to make progress• Day 10: full bowel function established• Day 11: patient discharged

Patient Case – Postoperative Course

Page 26: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Suspicious looking left kidney found during surgery

• Renal mass confirmed on MRI• 6 weeks later, patient admitted for left partial

nephrectomy

Patient Case – Continued

Page 27: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

What Would Be Your Anesthetic and Pain Management Plan?

A. Preoperative epidural

B. Preoperative celecoxib

C. Preoperative gabapentin

D. Intraoperative small dose ketamine infusion

E. All the above

Page 28: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Ho KY, et al. Pain. 2006;126:91-101.

Gabapentin and Postoperative Pain–Systematic Review

Page 29: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Pain Scores

Morphine Consumption

Ho KY, et al. Pain. 2006;126:91-101.

Gabapentin and Postoperative Pain

Page 30: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Perioperative Gabapentin 1200 mgAdverse Events

Adverse Events Odds Ratio P value

Nausea 0.72 (0.51-1.01) 0.06

Vomiting 0.58 (0.39-0.86) 0.007

Pruritus 0.27 (0.1-0.74) 0.01

Sedation 3.86 (2.5-5.94) 0.00001

Respiratory Depression 1.07 (0.21-5.49) 0.93

Ho KY, et al. Pain. 2006;126:91-101.

Odds ratio < 1 favors gabapentin over control (reduced risk for opioid-related side effects)

Page 31: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

White P, et al. Can J Anaesth 2007;54:342-348.

Celecoxib 400 mg/day in Laparoscopic Surgery

* P < 0.05 vs Control (actual P values listed)

Page 32: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Intravenous Ketamine and Postoperative Pain Systematic Review

Elia N, Tramèr M. Pain. 2005;113:61-70.

Visual Analogue Scale (VAS)of pain intensity

WMD: weighted mean difference

Page 33: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Multimodal Perioperative Pain Management

Preoperative gabapentin, short-term use of celecoxib, and intraoperative ketamine infusion are additional evidence-based strategies for improving perioperative analgesia, reducing opioid requirements, and minimizing opioid-related side effects.

Page 34: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• T9/T10 thoracic epidural placement preoperatively for postoperative pain control

• Preoperative celecoxib 400 mg followed by celecoxib 200 mg BID

• Preoperative single dose of gabapentin 1200 mg• Intraoperative ketamine bolus 0.5 mg/kg followed

by an infusion of 10 kg mcg/kg/min

Patient Case – Anesthetic and Postoperative Pain Management Plan

Page 35: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Surgery uneventful• Lasted for 3 hrs• Postoperative epidural infusion with bupivacaine

0.125% with hydromorphone 10 mcg/mL infused at 8 mL/h

• Continued with celecoxib 200 mg BID• Pain score 2-3/10

Patient Case – Postoperative Pain Management

Page 36: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Postoperative Day 2: epidural discontinued • Patient tolerated a full meal the day after surgery

with no nausea and vomiting• Urine through catheter started to be clear• Normal renal function established• Continued on celecoxib 200 mg BID• Pain score 2-3/10

Patient Case – Postoperative Course

Page 37: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

• Day 3: patient discharged• Patient was satisfied with the pain management

during his second surgery• Use of multimodal strategy greatly enhanced

pain control with reduction in side effects

Patient Case – Postoperative Course

Page 38: Multimodal Pain Management Tong Joo (TJ) Gan, MD, FRCA, FFARCS(I) Professor of Anesthesiology Vice Chairman Clinical Research Duke University Medical Center

Summary• This case illustrates

– Opioid use can result in many adverse effects including nausea and vomiting and delayed bowel recovery after surgery

– Pain involves complex mechanisms– Opioid adjuncts improve pain control– A multimodal pain management strategy improves

analgesia and lowers the incidence and severity of side effects