post-op nausea and vomiting

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Laparoscopic Day Laparoscopic Day Surgery: The American Surgery: The American Experience Experience Alfons Pomp, MD, FACS Alfons Pomp, MD, FACS Weill Medical College of Weill Medical College of Cornell University Cornell University

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physiologic mechanisms and management of post-op nausea and vomiting

Transcript of post-op nausea and vomiting

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Laparoscopic Day Surgery: The Laparoscopic Day Surgery: The American ExperienceAmerican Experience

Alfons Pomp, MD, FACSAlfons Pomp, MD, FACS

Weill Medical College of Cornell Weill Medical College of Cornell UniversityUniversity

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CHUM Hotel-Dieu MontrealCHUM Hotel-Dieu Montreal

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Ambulatory/Day SurgeryAmbulatory/Day Surgery

Same day discharge (< 23 hour stay) Physician office, ambulatory surgical centers

(ASC) and hospital based outpatient 1990’s American Hospital Insurance Programs

looked at risk/benefit of the economics Standard of care…safe outcomes?

Nonetheless 60-70% operations are performed as outpatient procedures

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Weill Cornell NYP HospitalWeill Cornell NYP Hospital

11,741

5,9355,292

100

11,935

6,444

5,499

802

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

Ambulatory (+2%) Admit Day (+9%) Inpatient (+4%) Outpatient (+702%)

2004 2005

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Mandate: The American Mandate: The American ExperienceExperience

Ambulatory Surgery (hernia/cholecystectomy) Reflux surgery Bariatrics

-Banding

-Gastric bypass Surgery of increasing complexity in more fragile

patients

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What is the riskWhat is the riskof having an operationof having an operation

No one really knows

Netherlands (Arbous et al 2001) 800,000 pts 8.8/10,000 mortality (1.4 due to anesthesia)

USA (Fleisher et al 2004) 564,267 Medicare procedures; 7 day mortality rates 4.1/10,000;

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Operative RisksOperative Risks data taken from inpatient procedures

Associated with patient factorsAssociated with anesthesiaAssociated with the surgical procedureAssociated with doing the procedure as

ambulatory/day surgery

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Patient Factors: AgePatient Factors: Age

Age (>65 years)

adverse intra-op events/not post-op events

hypertension: intra-op cardiovascular events

unanticipated readmission ratesAge (85 years)

co-morbidity, hospitalization < 6 months

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Patient Factors Patient Factors

Hyper-reactive airway disease

(asthma, COPD, smoking)Coronary artery disease(IHD, MI, CHF,BP)ObesityObstructive sleep apneaDiabetes

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DiabetesDiabetes

80% type II/ 80% are obese: associated with increase in unplanned admissions

Poor control associated with increased rate of surgical complications

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DiabetesDiabetes

Understand disease/ measure BS at homeTreatment of hypoglycemiaNo recurrent admission with complications

related to diabetesHb1Ac >8 unsuitable > 9 not any elective

surgeryMetformin associated with lactic acidosis

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American Society of American Society of Anesthesia (ASA) ClassAnesthesia (ASA) Class

Class 1 Healthy patient, no medical problems Class 2 Mild systemic disease Class 3 Severe systemic disease, but not incapacitating Class 4 Severe systemic disease that is a constant threat to life Class 5 Moribund, not expected to live 24 hours irrespective of operation An e is added to designate an emergency operation.

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AnesthesiaAnesthesia analgesia/amnesia/paralysis

Anxiety Pain afferent, inflammation Consciousness Autonomic stimulation Memory Movement

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PONVPONV(Post-anesthesia nausea/vomiting)(Post-anesthesia nausea/vomiting)

Common cause of unplanned admissions

Risk factors

intra-peritoneal gas

bowel manipulation

female gender

history of motion sickness

opiates

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PONV PreventionPONV Prevention

Pre-induction anti-emeticsShort term induction anestheticsVolatile anesthetics (sevoflurane)Short acting muscle relaxantsAnalgesia

portals, intra-peritoneal spray

NSAIDS/ketorolac

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Post-anesthesia Discharge Post-anesthesia Discharge Scoring SystemScoring System

Vital signsActivity levelNausea and vomitingPainSurgical care

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Are ambulatory risks higher Are ambulatory risks higher than inpatient?than inpatient?

5-8% of procedures are performed in MD’s office w/o federal regulations, moderate rates of “readmission”

ASC have lowest adverse outcomeHighest rates of readmission and deaths are

surgeries performed as outpatient in hospital setting

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Ambulatory Surgery Risk Ambulatory Surgery Risk FactorsFactors

ASA class Advanced age (> 85 years)Inpatient admission historySurgical procedure complexity (time)

Medical causes account for less than 20% of admissions

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Ambulatory Surgery Risk Ambulatory Surgery Risk FactorsFactors

Hyper-reactive airway disease (smoking)Coronary artery disease (functional)DiabetesObesityObstructive sleep apnea

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Ambulatory SurgeryAmbulatory Surgery

90 minutes/6 hour recovery time

Reflux operations -Nissen

Bariatric operations-Banding90 minutes/23 hour discharge time

Bariatric operations-LRYGBP

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Day Case Laparoscopic Day Case Laparoscopic Nissen FundoplicationNissen Fundoplication

Patient selectionAnesthesia protocolsDischarge rates and timePostoperative complications/re-admissions

Ng et al ANZ J Surg 2005

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Nissen FundoplicationNissen Fundoplication

ASA grade I-II (patient bias selection)30 minute drive from the hospitalObesityAsthmaAge

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Nissen FundoplicationNissen Fundoplication

Pre-emptive analgesiaAnti-emeticsPropofol as induction, variable maintenanceLocal anesthesia in the wounds

Post-operative reviews

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Nissen FundoplicationNissen Fundoplication

> 90% discharge rate most studies 6-7 hrs

cardiovascular stability

clear fluids

adequate pain control

able to ambulate

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Nissen FundoplicationNissen Fundoplication

1-11% re-admission rate

dysphagia/inability to tolerate fluid

comparable to hospitalized patients86% patients have resolution of symptoms1.5-3 days US $2500-3400/case

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Bariatric ExplosionBariatric Explosion

Epidemic of obesity Laparoscopic approach Publicity / media Patient demand

Schirmer, B. Watts, S.H. Laparoscopic Bariatric Surgery Surg Endosc 2003

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Bariatric Surgery-USABariatric Surgery-USA

1994-1999 10-15,000/year 2000 22,000 2001 48,000 2002 75,000 2003 105,000 2004 140,000 (450,000 lap cholecystectomies)

Schirmer B., Watts S.H., Surg Endosc 2003

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Surgery for ObesitySurgery for Obesity

WLS today– Restriction– Malabsorption

4 operations

- Lap band– Sleeve gastrectomy– Gastric bypass– Duodenal Switch

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Surgical Procedures:Surgical Procedures:Laparoscopic Adjustable Gastric Laparoscopic Adjustable Gastric

BandingBanding

Inflatable gastric band just distal to G-E junction

Purely restrictive procedure

“Reversible” Technically “simple”

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Gastric BandingGastric Banding

343 patients 4/2003-1/2005 Contra-indications cardiac co-morbidity pulmonary co-morbidity poorly controlled diabetes ( + all > 60) anticoagulation impaired mobility

Watkins B. M. et al Obesity Surgery 2005

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Gastric bandingGastric banding

4.5 –13.5kg pre-op weight lossDVT prophylaxisAnesthesia

scopolamine/IV rantidine/ondansetron

local bupivacaine/ketorolac/dexamethasone

liquid hydrocodone/acetaminophen

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Gastric bandingGastric banding

305 females/38 males 43.5 years/BMI 44.5OR 53 minutes8.2 % paid by insurance company10 complications

5 occlusions treated medically

colon perforation

3 transfers to hospital

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15-30 cc15-30 ccPouchPouch

100-150 cmRoux limb

Roux-en-Y Gastric Bypass

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Gastric bypassGastric bypass

2000 patients LRYGBP 10/2001-12/2004Average BMI 49 Female to male ratio 7:1OR times 54-115 minutes average1669 (84%) discharged within 23 hours

McCarty T.M. et al Annals of Surgery 2005

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Gastric bypassGastric bypass

Early complications (<30 days)

stricture , bleeding, leaks, PE

(0.8%,0.3%,0.2%,0.1%)Late complications

internal hernias, stricture, G-G fistula

(2.5%,1.3%,0.2%)2 mortalities: hemorrhage /sepsis

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Gastric bypassGastric bypass

Predictive of discharge

surgeon experience (>50 cases)

patient age (<56)

BMI <60

weight < 400 lbs (180 kg)

co-morbidities < 4

intra-operative steroid bolus

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Gastric bypassGastric bypass

Lessons learned

KEEP RATE OF COMPLICATIONS LOW

Circular stapler 25mm/ Linear Stapler

Staple buttress

Internal hernias less with ante-colic approach

Intra-operative steroids

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Gastric bypassGastric bypass

National Hospital Discharge Survey 10% complication rate LOS 7 daysVariability: open procedure, clinical care

pathways to reduce pain, nausea, narcotic requirements and complications

Livingston E.H. Am J Surg 2004

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Laparoscopic Day surgery for Laparoscopic Day surgery for Liver ResectionLiver Resection

17 patients, no conversions 2002-2004Anterior and medial segments of the liverTissuelink, GIA stapler, intra-op U/S11 patients averaged 14 hours stay

5 segmentectomies

OP time 174 minutes

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Decreased pain and wound related morbidity

Short hospital stay in appropriate patients

(lower ASA scores)

Learn P. et al J Gastrointestinal Surgery 2006

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Successful dischargeSuccessful discharge meticulous surgery, low complication rate

Post-operative pain and nausea

Pre-operative analgesia

Anti-emetics

Standardized anesthesia protocols

short acting agents

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Successful DischargeSuccessful Discharge

Information prior to the procedureWritten instructions on dischargeHome contact

monitor progress, reassure

detect early problemsSelf referral to surgical team-minimal delay

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ConclusionsConclusions

Attractive to the surgeon

reduce waiting times

decreases cancellations due to bed shortage

COST-EFFECTIVEAttractive to the patient?

PONV, pain, anxiety (help) addressed

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Un grazieUn grazie(di cuore)(di cuore)Un grazieUn grazie(di cuore)(di cuore)

Alfons Pomp, MD, FACSAlfons Pomp, MD, FACS