Obstetrics Book

Delivery

Labor Induction

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Prostaglandin Gel

Aka: Prostaglandin Gel, Dinoprostone, PGE2 Gel, Cervidil, Prepidil
  1. See Also
    1. Cervical Ripening
    2. Labor Induction
    3. Misoprostol (Cytotec)
  2. Indications
    1. Bishop Score <6
    2. Membranes intact
    3. No active contraction pattern
      1. Less than 10 mild contractions per hour
  3. Medication: Dinoprostone Gel (PGE2 Gel, Prepidil)
    1. Initiate Fetal Heart Rate and tocometry
      1. Start 15-30 minutes before gel inserted
      2. Continue monitoring for 30-120 minutes after
    2. Insertion Technique
      1. Use one syringe of gel (0.5 mg in 3cc KY)
      2. Introduce gel into Cervix
        1. Cervix not effaced: Use 20 mm catheter
        2. Cervix effaced 50% or greater: Use 10 mm catheter
        3. Intracervical is preferred over posterior fornix
          1. Perry (2004) Obstet Gynecol 103:13-7 [PubMed]
      3. Patient remains supine for 30 minutes
    3. Dosing
      1. Repeat every 6 hours up to 3 doses in 24 hours
    4. End points
      1. Bishop Score of 8 or greater
      2. Strong uterine contractions
    5. Drug Interactions
      1. Wait 6-12 hours before starting Pitocin
  4. Medication: Dinoprostone Pessary (PGE2, Cervidil)
    1. Releases Dinoprostone at 0.3 mg/hour for 12 hours
    2. Insert Pessary at Cervix
    3. Monitor Fetal Heart Tones and tocometry
      1. Start 15 to 30 minutes before insertion
      2. Continue monitoring for 15 minutes after removal
    4. Remain recumbent for 2 hours after insertion
    5. Pull Pessary out via string if hyper-stimulated
  5. Medication: Misoprostol (PGE1, Cytotec)
    1. Insert one fourth of 50 mcg tablet intravaginally
      1. Avoid use of K-Y or other gel at time of insertion
        1. Interferes with gel dissolving
      2. Patient remains supine for 30 minutes
      3. Monitor Fetal Heart Tones and toco for 3 hours
      4. Repeat every 4-6 hours as needed
      5. Wait at least 3 hours before Pitocin
    2. Cytotec 50 mcg orally may be preferred
      1. Effective ripening with lower hyperstimulation risk
      2. See Adverse Effects below
    3. References
      1. Vengalil (1998) Obstet Gynecol 91:774-9 [PubMed]
  6. Medication: Newer agents (experimental)
    1. Mifepristone (Mifeprex)
      1. Antiprogesterone
    2. Relaxin Hormone
  7. Adverse Effects
    1. Tachysystole
      1. Criteria: >10 contractions in 20 minutes
      2. Dinoprostone Tachysystole Incidence: 33%
      3. Misoprostol Tachysystole Incidence
        1. Intravaginal gel or tablet: 31 to 49%
        2. Oral crushed form or tablet: 16 to 22%
    2. Hyperstimulation
      1. Criteria
        1. Exaggerated uterine response (i.e. Tachysystole)
        2. Concerning Fetal Heart Rate tracing
          1. Late Decelerations
          2. Fetal Tachycardia >160 beats per minute
      2. Dinoprostone Hyperstimulation Incidence: 17%
      3. Misoprostol Hyperstimulation Incidence
        1. Intravaginal gel or tablet: 8%
        2. Oral crushed form or tablet: 1 to 2%
    3. Uterine Rupture in VBAC
      1. Risk: 2.5% in Trial of Labor after Cesarean
    4. References
      1. Crane (2001) Obstet Gynecol 97:926-31 [PubMed]
      2. Ravasia (2000) Obstet Gynecol 183:1176-9 [PubMed]
  8. Complications: Hyperstimulation Management
    1. Consider Terbutaline SQ
    2. Dinoprostone (Cervidil): Remove
    3. Misoprostol (Cytotec): Irrigate vagina
      1. Use Normal Saline via 100 cc Syringe (no needle)
      2. Repeat several times until pill fragments recovered
  9. References
    1. Adair (2000) Clin Obstet Gynecol 43:447-54 [PubMed]
    2. Crane (2001) Obstet Gynecol 97:926-31 [PubMed]
    3. Sanchez-Ramos (1997) Obstet Gynecol 89:633-4 [PubMed]
    4. Tenore (2003) Am Fam Physician 67(10):2123-8 [PubMed]

Dinoprostone (C0012472)

Definition (NCI) A synthetic prostaglandin E2 (PGE2) analogue with smooth muscle contraction inducing property. It has been suggested that PGE2 regulates the intracellular levels of cyclic 3, 5-adenosine monophosphate (cAMP) by activating adenylate cyclase and thereby increases cellular membrane calcium ion transport. By acting directly on the myometrium, dinoprostone induces uterine and gastrointestinal smooth muscle contractions.
Definition (MSH) The most common and most biologically active of the mammalian prostaglandins. It exhibits most biological activities characteristic of prostaglandins and has been used extensively as an oxytocic agent. The compound also displays a protective effect on the intestinal mucosa.
Concepts Pharmacologic Substance (T121) , Hormone (T125) , Eicosanoid (T111)
MSH D015232
SnomedCT 387245009, 44798001, 22237003, 259584001
LNC LP15824-3, MTHU003620
English E2alpha, Prostaglandin, PGE2, PGE2 alpha, PGE2alpha, Prostaglandin E2, Prostaglandin E2 alpha, Prostaglandin E2alpha, E2 alpha, Prostaglandin, E2, Prostaglandin, alpha, PGE2, alpha, Prostaglandin E2, Prosta-5,13-dien-1-oic acid, 11,15-dihydroxy-9-oxo-, (5Z,11alpha,13E,15S)-, PGE2 - Prostaglandin E2 prod, PGE2 - Prostaglandin E2, PGE2 preparation, Prostaglandin E2 preparation, PGE<sub>2</sub> preparation, Prostaglandin E<sub>2</sub> preparation, dinoprostone, PGE 02, PGE 02 ALPHA, PROSTAGLANDIN E 02, PROSTAGLANDIN E 02 ALPHA, dinoprostone (medication), prostaglandins dinoprostone, Dinoprostone [Chemical/Ingredient], prostaglandin e2, e2 prostaglandin, pge2, pge2 alpha, Prostaglandin PGE>2<, Prostaglandin PGE<sub>2</sub> (substance), Prostaglandin PGE2 (substance), Prostaglandin E2 (substance), Prostaglandin PGE<sub>2</sub>, Prostaglandin PGE2, Prostaglandin PGE>2< (substance), Dinoprostone, DINOPROSTONE, Dinoprostone preparation, PGE2 - Prostaglandin E2 product, Prostaglandin E2 product, Dinoprostone product, Prostaglandin E>2< preparation, PGE>2< preparation, Dinoprostone (substance), Dinoprostone preparation (product), Dinoprostone preparation (substance)
Swedish Dinoproston
Spanish preparado de dinoprostona, preparado con prostaglandina E>2<, prostaglandina E2, preparado con prostaglandina E2, preparado con prostaglandina E<sub>2</sub>, preparado con PGE<sub>2</sub>, preparado con PGE2, dinoprostona (producto), preparado con PGE>2<, preparado con dinoprostona (producto), preparado con dinoprostona, prostaglandina PGE>2<, PGE2, prostaglandina PGE<sub>2</sub>, prostaglandina PGE2, prostaglandina PGE2 (sustancia), prostaglandina PGE<sub>2</sub> (sustancia), prostaglandina PGE>2< (sustancia), prostaglandina E2 (sustancia), dinoprostona (sustancia), dinoprostona, preparado de dinoprostona (sustancia), Dinoprostona, PGE2 alfa, Prostaglandina E2 alfa, Prostaglandina E2
Czech dinoproston
Finnish Dinoprostoni
Russian PROSTAGLANDIN E2, PGE2 AL'FA, DINOPROSTON, PROSTAGLANDIN E2 AL'FA, PGE2, PGE2 АЛЬФА, ДИНОПРОСТОН, ПРОСТАГЛАНДИН E2, ПРОСТАГЛАНДИН E2 АЛЬФА
Italian PGE2, Prostaglandina E2 alfa, Prostaglandina E2alfa, PGE2 alfa, PGE2alfa, Prostaglandina E2, Dinoprostone
German PROSTAGLANDIN E 02 ALPHA, PROSTAGLANDIN E 02, PGE 02 ALPHA, PGE 02, Dinoprostonum, Dinoproston, PGE2Alpha, PGE2, Prostaglandin E2Alpha, Prostaglandin E2
French PG-E2-alpha, Prostaglandine E2alpha, PGE-2-alpha, PGE-2, PGE2alpha, PG-E2, Prostaglandine E-2-alpha, Prostaglandine E2-alpha, PGE2, Dinoprostone, Prostaglandine E2
Croatian DINOPROSTON
Polish Dinoproston, Prostaglandyna E2, PGE2
Japanese ジノプロストン, PGE2アルファ, プロスタグランジンE2, プロスタグランジンE2アルファ, プロスタグランジンE2α, プロスタグランディンE2
Portuguese PGE2, Dinoprostona, PGE2 alfa, Prostaglandina E2 alfa, Prostaglandina E2
Sources
Derived from the NIH UMLS (Unified Medical Language System)


Prepidil (C0592000)

Concepts Pharmacologic Substance (T121) , Eicosanoid (T111)
English Prepidil
Sources
Derived from the NIH UMLS (Unified Medical Language System)


Cervidil (C0719232)

Concepts Pharmacologic Substance (T121) , Organic Chemical (T109) , Hormone (T125)
English Cervidil, cervidil
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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