nikkipowerpoint for epi
DESCRIPTION
Thesis Presentation on Rates of Primary Cesareans in California.TRANSCRIPT
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: Transforming Maternity Care
Geographical Variations among Age-Adjusted Low-Risk Primary
Cesarean Section (CS) Rates in California
Nikki StoddartMasters Candidate
Division of Epidemiology
Department of Health Research and Policy
Stanford University, School of Medicine
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: Transforming Maternity Care
A Brief History of Cesarean Birth
The Birth of Asclepius
1549 Alessandro Beneditti“De Re Medica”
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: Transforming Maternity Care
Origins of Cesarean Birth
Historical record indicates infants born via Cesarean Greek Mythology: Apollo removed Asclepius
from Coronis’ abdomen Procedure performed on living women in
Ancient China
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: Transforming Maternity Care
Suetonius 1506 WoodcutLives of the Twelve Caesares
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: Transforming Maternity Care
Why is it Called “Caesarean”?
Named for the birth of Julius Caesar?Unlikely because in ancient Rome the
procedure was done only when the mother was dead or dying but Caesar’s mother, Aurelia, lived to hear of his Conquest of Britain.
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: Transforming Maternity Care
Oh, I see….
Possibly from the Latin “caedare”, meaning “to cut”Roman Law stated that women dying in
childbirth must be cut open to remove the infant.
Latin word “caesones” refers to children born by postmortem incision.
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: Transforming Maternity Care
Finally, we have a live one!
In 1500 Jacob Nufer, a Swiss pig gelder, performed a Cesarean on his ailing wife. She lived to be 77 years old, and birthed 5 more children vaginally, including a set of twins.
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: Transforming Maternity Care
But Still Gruesome….
Between 1787- 1876, not a single Parisian woman survived the Cesarean operation.
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: Transforming Maternity Care
Performing Abdominal Surgery in Street ClothesThomas Spencer Wells, Diseases of the Ovaries, 1872
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: Transforming Maternity Care
From Fatal to….....Less Fatal
Maternal mortality rates dropped in the mid nineteenth century 1846 William Morton- Diethyl Ether
Women less likely to die from shock 1860’s Josef Lister- Carbolic Acid
Antiseptics and the germ theory
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: Transforming Maternity Care
From Less Fatal…… To Safe
C/S rates increase because:Post WWII, many new hospitals built Surgical technique improvedSpinal Anesthesia developedPenicillin purified 1940Roman Catholic religious concerns
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: Transforming Maternity Care
From Safe……to Every Day Continued rate increase far outpaces rise in birth rate
Convenience Physicians can schedule around vacations, dinnertime Women can schedule time off from work Cutting loses (Better a section a 6pm than a delivery at 3 am)
Culture “Too Posh to Push” – Victoria Beckam Vaginal Preservation Society
C.Y.A. Malpractice suits
twins , breech, or VBACs are too risky
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Technology in the Labor Suite Strongly Correlates with CS rates Labor induction
r= 0.57 (P<.0001) Fetal monitoring Early Labor Admission
“Failure to progress” leads to CS r= .62 (P <.0001)
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: Transforming Maternity Care
FinancialOb/gyn’s must do more deliveries to pay MIC/S birth reimbursement is higher than
vaginal
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: Transforming Maternity Care
So, where does that leave us Today?
WHO and USDHHS recommend no more than 15% of all births be C/SBeyond 15%, risks begin to eclipse benefits
Yet 1/3 women in CA deliver via C/S
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: Transforming Maternity Care
For every 5% decrease in the national primary CS rate there will be:
Between 14-32 fewer maternal deaths 33,000 fewer NICU admissions An savings of $750 million -$1.7 billion in
healthcare costs.Plante 2006
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: Transforming Maternity Care
Risks of CS to Mother
Blood Loss/Transfusion ≥ 1000 ml Postoperative Infections Subsequent Infertility Subsequent increased risk: placenta previa, placenta accreta, placental
abruption and hemorrhage Injury to bowel, bladder, pelvic vasculature Rehospitalization Maternal Mortality
RR: 1.6- 2.8
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: Transforming Maternity Care
Risks of CS to Fetus
Higher rates of respiratory distress5% C/S 0.5% vaginal
Possible iatrogenic prematurity Double risk of NICU admission Double risk of unexplained stillbirth in
subsequent pregnancy
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: Transforming Maternity Care
CONTENTS FRAGILE
DO NOT USE KNIFE TO OPEN
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: Transforming Maternity Care
Objectives
Identify regional variations of Age Adjusted Low-Risk C/S rates in California Simplify regions: Northern, Southern CA and LA
County Identify excess rates of C/S deliveries
(Exclude Hospitals with less than 100 births per year) Inform hospital leaders; lead quality change
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: Transforming Maternity Care
Low-Risk Primary Cesarean Section Defined:
Number of Cesarean Deliveries per 100 deliveries among women who have not previously had a Cesarean section (excludes abnormal presentation, preterm, fetal death, multiple gestation, and breech procedures)Primary C/S rates are age-adjusted.
OSHPD Data 2006
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: Transforming Maternity Care
Age-Adjusted Low-Risk Primary C/S Rates distributed to quintiles and
applied to regions:
0-20%; (Quintile 1: 5-13) 20-40%; (Quintile 2: 14-15) 40-60%; (Quintile 3: 16.1-16.9) 60-80%; (Quintile 4: 17-19) 80-100%;(Quintile 5: 19+)
Quintile ranges are per 100 births
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: Transforming Maternity Care
Top and Bottom two Quintiles (40%) of Age-adjustedLow-Risk Primary C/S Rates: Northern CA
Hospitals with rates > 17
n = 32/124 (25%)
Hospitals with rates < 16
n=74/124 (60%)
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: Transforming Maternity Care
Top and Bottom two Quintiles (40%) of Age-AdjustedLow-Risk Primary C/S Rates: LA County CA
Hospitals with rates >17n=44/60 (73%)
Hospitals with rates < 16n=12/60 (20%)
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: Transforming Maternity Care
Top and Bottom two Quintiles(40%) of Age-AdjustedLow Risk Primary C/S Rates: Southern CA
Hoag memorial
Scripps La Jolla
Hospitals with rates >17n=34/80 (43%)
Hospitals with rates < 16 n=40/80 (50%)
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: Transforming Maternity Care
Public Health Implications of Cesarean on DemandLauren Plante 2006
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: Transforming Maternity Care
What are the total regional excess cases above California’s mean primary
C/S rate (16 per 100 live births)?
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: Transforming Maternity Care
Excess Cases of Low-risk Primary Cesarean Births (age-adjusted)
above the State mean of 16 per 100 births.By Hospital
San Francisco Bay Area 2006
Total Excess C/S Cases= 349 (3%)Total low-risk non prior C/S= 11,043 (11%)
Total Live Births= 97,000
Good Samaritan San Jose
Hospitals with more than 200 Excess Cases are labeled
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: Transforming Maternity Care
Valley Pres
Cedars Sinai Hollywood PresCitrus MemorialGarfield
Huntington Park
Excess Cases of Low-risk Primary Cesarean Births (age-adjusted)
above the State mean of 16 per 100 births.
By Hospital, LA County 2006
Total Excess C/S Cases= 4368 (20%)Total low-risk non-prior C/S= 22,327 (20%)
Total Live Births= 114,846
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: Transforming Maternity Care
Excess Cases of Low-risk Primary Cesarean Births (age-adjusted)
above the State mean of 16 per 100 births.
By Hospital, Northern CA 2006
Total Excess C/S Cases= 1312 (5%) Total Non-Prior C/S= 23,745 (11%)
Total Live Births= 212,919
Good Samaritan San Jose
Hospitals with more than 200 Excess Cases are labeled
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: Transforming Maternity Care
Birth Costs (In thousands)
Physician Cost Hospital Cost Total Cost0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
Vaginal BirthCesarean Birth
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: Transforming Maternity Care
Financial Implications of California’s Excess Cases (Complications excluded)
Total excess cases above state mean: 17,677
Excess Healthcare Costs per Annum: $ 93,422,945.00
Total excess cases above 15 (WHO Recommendation): 40,654
Excess Healthcare Costs per Annum: $214,856,390.00
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: Transforming Maternity Care
Conclusion:
Next Steps?
Questions/Comments?What benchmark should we use? Is Geomapping a useful tool for sharing data?