CCFP(EM) Academic Half Day Obstetrical and Gynecological Emergencies: Women’s Health on the Fly APRIL 4, 2013 ELIZABETH SHOULDICE, MD CCFP(EM) Agenda Who am I? Case Based Gynecological Emergencies Obstetrical Emergencies Group Discussion Who am I? Conflict of Interest None Acknowledgments Dr. Liisa Honey Dr. Sunita Lal Dr. Kimberley Creaser Objectives Vaginal bleeding/complications in the first 20 weeks of pregnancy Vaginal bleeding/complications in the second 20 weeks of pregnancy Obstetrical Emergencies Preeclampsia and eclampsia Postpartum emergencies Sexually transmitted infections Case #1 Queensway Carleton Hospital 26 y.o. female presents to triage after “fainting” at work Accompanied by her partner Vitals: 37.5, 110, 85/50, 20, 100% ORA Resuscitation room Case #1 Brief history: On Alesse No medical problems Recent GI illness, vomiting/diarrhea No pregnancies LMP 2 weeks ago Nurses: 2 large IVs, NS, Labs: CBC, lytes, BUN, Cr, Type cross match, quantitative βHCG Case #1 Abdomen soft, tender diffusely Bimanual exam, tender R adnexa, + blood on glove EDE: Free fluid RUQ, no IUP What do you do? Case #2 Hay River, NWT 18 year old female Presents to ED with abdominal pain Vitals within normal limits Recent treatment for ectopic pregnancy in referral centre, discharged 5 days ago What would you do? Case #2 Treated with single dose methotrexate in Yellowknife Has not had serial βHCG Vitals: 37.5, 85, 105/70, 20, 100% ORA Abdomen soft, non tender Bimanual exam no adnexal tenderness, no bleeding EDE: No free fluid, no IUP, no formal U/S available for a week, unless you ship her out Hb stable, βHCG decreasing What now? Ectopic Pregancy ~2% of all pregnancies Unless IUD in place, risk increases to 1/20 Risk factors: PID, surgical procedures, previous ectopic, DES exposure, assisted reproduction Treatment with methotrexate becoming more common Beware of ruptured tube, can happen days after mtx ISRN Obstet Gynecol. 2012;2012:637094. Epub 2012 Feb 19. The evolution of methotrexate as a treatment for ectopic pregnancy and gestational trophoblastic neoplasia: a review. Skubisz MM, Tong S.Prescrire Int. 2009 Jun;18(101):125-30. Intrauterine devices: an effective alternative to oral hormonal contraception. Acta Obstet Gynecol Scand. 2009;88(12):1331-7. Success and spontaneous pregnancy rates following systemic methotrexate versus laparoscopic surgery for tubal pregnancies: a randomized trial. Krag Moeller LB, Moeller C, Thomsen SG, Andersen LF, Lundvall L, Lidegaard Ø, Kjer JJ, Ingemanssen JL, Zobbe V, Floridon C, Petersen J, Ottesen B. Case #3 Queensway Carleton Hospital 29 y.o. female CC: PV bleeding x 10 days, G2P2 HPI: Delivery of healthy male child October 26 Light PV bleeding in December At time of assessment PV bleeding x 10 days Case #3 HPI (cont’d): LLQ pain 3/7 before ED visit Positive home pregnancy test on day of ED visit Case #3 O/E Triage Vitals: 36.6 86 128/76 97%ORA Looks well, no distress Normal abdo and PV exam EDE: deferred Case # 3 Labs: βHCG 284223 Case # 3 Patient returned next day: Formal U/S: Mildly thickened endometrium R/O molar pregnancy EDE Equivocal Case # 3 Called obs/gyne: ?trophoblastic tissue elsewhere Repeat βHCG, add liver enzymes, coags and CXR Resident will be down to see patient Case # 3 CXR Case # 3 Resident assessment Ordered CT head/chest/abdomen/pelvis in a.m. Revealed 5cm splenic metastasis Discussed with gyne onc at OGH Will see urgently Arranged urgent D&C for next day Diagnosis metastatic choriocarcinoma Case #3 Admitted to gyne onc at OGH Feb 9 for expedited treatment Stage IV High risk, requiring combination chemotherapy Goal of cure 5-7 % chance of infertility First & Second Trimester Bleeding Gestational Trophoblastic Diseases (GTD) Disorders of fertilization Hydatiform mole • Noninvasive, localized • 90% of cases • Starts with empty egg, fertilized by two sperm Placental site trophoblastic tumor Choriocarcinoma Gestational trophoblastic neoplasia Learning Points (cont.)…. Arise from trophoblastic epithelium of placenta All are characterized by high βHCG Maternal tumor arises from gestational tissue, not maternal tissue Can develop from molar pregnancy or from TA/SA, ectopic, term or preterm pregnancies Very rare, hydatidiform mole 23-1299/100 000 pregnancies, other types even more rare Learning Points (cont.)…. Risk factors Extremes of maternal age (>35 and <20) History of previous GTD Smoking History of infertility Nulliparity OCP use Learning Points (cont.)…. Presentation PV bleeding Enlarged uterus Pelvic pain Theca lutein cysts Anemia Hyperemesis gravidarum Hyperthyroidism (βHCG has thyroid stimulating activity) Preeclampsia before 20 wks gestation Learning Points (cont.)…. Monitoring of βHCG after molar pregnancy is often how GTN is diagnosed Must be monitored for at least 6 months Ultrasound can have characteristic appearance, but often misdiagnosed as incomplete or complete abortion Learning Points (cont.)…. Management Initial management is always D&C, useful for pathology Very common to have increased hemorrhage, need to have blood on hand Thorough work up for distant metastases Chemo, at times prophylactically for high risk disease Contraception Learning Points (cont.)…. http://radiographics.rsna.org/content/21/6/1409/F11.expansion.html Learning Points (cont.)…. Consider quantitative βHCG Even if you’re somewhere where this is difficult! Even if U/S shows nothing, with very high βHCG consider GTD Look for trophoblastic tissue elsewhere (CXR, liver enzymes, CT) High propensity for bleeding Consider transfer for D&C to centre with blood and ICU Quick Points – First Trimester Bleeding Notes from our gynecology consultants: Spontaneous miscarriage – patients with severe pain or vasovagal response, examine for products of conception in the cervical os Retained products of conception <8 weeks gestation can often be managed by two doses of misoprostol 800ug q24 hours Don’t forget to give miscarrying patients pain control for home, narcotics are often required Second & Third Trimester Complications & Bleeding Vaginal bleeding in the second 20 weeks of pregnancy Placental abruption Placenta previa Uterine rupture Vasa previa Preterm labour Second & Third Trimester Complications & Bleeding (cont.)…. Key Points: Evaluation of Preterm Labor Pelvic pressure, vaginal discharge, vaginal bleeding, or low-back pain Many hospitals require patients with pregnancies less than 20 weeks gestation to be evaluated in the emergency department A detailed history of symptoms can help differentiate between spontaneous and evoked preterm labor A complete obstetric history, including gestational age, is important to determine the risk for possible recurrent preterm birth Maternal vital assessment, especially temperature and blood pressure Prim Care. 2012 Mar;39(1):95-113. Third-trimester pregnancy complications. Newfield E Second & Third Trimester Complications & Bleeding (cont.)…. Fetal vital assessment Documentation of normal fetal heart tones is sufficient for fetuses < 23 wks Continuous external fetal heart rate monitoring for all > 24 wks Continuous tocometry is recommended Informal (bedside) US should be performed Physical exam of should be performed, including ultrasound before sterile PV exam Fetal fibronectin Invalid if the cervix has been manipulated in the prior 24 hours A glycoprotein present at the maternal-fetal interface, absent between 24 and 34 weeks’ gestation. The negative predictive value of the test approximates to 99%; symptomatic patients with a negative result of fetal fibronectin test are very unlikely to deliver in the following 7 days Second & Third Trimester Complications & Bleeding (cont.)…. Causes of preterm labour…. Neisseria gonorrhoeae and Chlamydia trachomatis, bacterial vaginosis, trichomoniasis, or Candida infection Urine analysis and culture is recommended Cocaine and amphetamines are associated with preterm labor, often secondary to placental abruption Other considerations…. Group B Streptococcus (GBS) testing should be performed Case #4 Perth and Smiths Falls District Hospital, Perth Site February 19, 2013 0330 Nurse Calls the On Call Room: 32 year old, G6P4SA1, 41W1D 3 hours of contractions 1 minute apart, lasting 30 seconds In the department, midwife told her she wouldn’t make it to Almonte Nearest obstetrical unit 20-30 minutes away You’re the only MD in the hospital What do you do? Case #4 Obstetrical Emergencies Emergency Delivery Equipment Personnel Rest of the department OB unit on the phone! Neonatal consideration Case #5 Dominican Republic, 2011 Case #5 18 year old woman Presents to “clinic” Reports being 8 months gestation and concerned re: decreased fetal movement and wanting refill of medication One previous pregnancy, complicated by preterm birth for seizure, baby did not survive Limited family support, as family have all moved to US Shows box of labetolol given in neighbouring town Case #5 Vitals: 37.5, 70, 160/110, 20, 100% ORA Further history: Denies headache or blurred vision, but reports increased ankle edema (does the ankle edema matter??) On examination: Gravid uterus No abdominal pain FHT >120, with bell of stethoscope What now? Preeclampsia & Eclampsia Hypertensive disorders account for 15% of maternal deaths Four categories: chronic hypertension preeclampsia/eclampsia gestational hypertension preeclampsia superimposed on chronic hypertension Preeclampsia: Affects 3 to 5% of pregnant women Can result in maternal and perinatal morbidity and mortality Higher rates in developing countries No single screening test used for preeclampsia prediction has gained widespread acceptance into clinical practice Rev Bras Ginecol Obstet. 2011 Nov;33(11):367-75. Early screening for preeclampsia.Costa Fda S, Murthi P, Keogh R, Woodrow N. Preeclampsia & Eclampsia (cont.)…. Severe preeclampsia 1 of the or signs in the presence of preeclampsia: SBP of 160 mm Hg or higher or DBP of 110 mm Hg or higher on 2 occasions at least 6 hours apart Proteinuria of more than 5 g in a 24-hour collection or more than 3+ on 2 random urine samples collected at least 4 hours apart Pulmonary edema or cyanosis Oliguria (< 400 mL in 24 h) Persistent headaches Epigastric pain and/or impaired liver function Thrombocytopenia Oligohydramnios, decreased fetal growth, or placental abruption Preeclampsia & Eclampsia The HELLP syndrome (Hemolysis, Elevated Liver enzymes, Low Platelets) can be considered a variant of severe preeclampsia May present independently of hypertension and proteinuria Risk for severe maternal and fetal complications; perinatal mortality has ranged from 7% to 60% and maternal mortality is high Case #6 The Ottawa Hospital, Civic Campus 37 year old woman, 5 weeks post partum First pregnancy No complications Baby at home with father Presents as blood pressure “high” at postpartum visit with family physician Case #6 Vitals: 37.5, 70, 160/110, 20, 100% ORA O/E….. Patient has generalized tonic clonic seizure Treatment?? IV MgSO4 4g IV Bolus, then 2g IV/hour Further management? Benzos prn Close monitoring Case #7 Queensway Carleton Hospital 33 y.o. female presents to triage with R lower quadrant abdominal pain, 17 weeks pregnant Vitals: 37.2, 88, 97/61, 20, 100% ORA Cubicles Case #7 G3P2 No PV bleeding Pain worse with movement No fever, chills, urinary symptoms EDE - + FHT, fetal movement Discussed with gyne ?round ligament pain, ?MSK Formal U/S – + FHT, small amount of free fluid, appendix not visualized, normal flow to R ovary, but + tender during exam General surgery consulted, clinically not appendicitis, return for R/A prn Case #7 Next day, patient returns, pain worse Now vomiting U/S repeated – SLIUP, appendix normal, simple cyst R ovary, larger than previous, no definite flow, ovarian torsion on DDx Patient taken to OR by general surgery and gyne Right ovarian torsion, tube and ovary remained necrotic after being untorted Right salpingo-oophorectomy Case #7 What are the key points? Can mimic appendicitis Can have nausea, vomiting and fever (caused by necrosis) ~20% of ovarian torsion occurs in pregnancy Torsion most commonly occurs in women under 30 Was this a missed torsion? What do you think? Sexually Transmitted Infections http://www.phac-aspc.gc.ca/std-mts/sti-its/ Thanks! QUESTIONS? COMMENTS? CONCERNS?