Biography I study how we can close the gap between what we know and what we do in managing severe maternal complications such as postpartum hemorrhage. My research focuses on developing strategies to improve clinical preparedness, response, and decision-making in the prevention and management of postpartum hemorrhage. This work spans clinical, health services, and epidemiologic research, including studies on blood product use, peripartum coagulation dynamics, and the application of point-of-care technologies such as thromboelastography. I also examine population-level patterns in labor epidural analgesia use, investigating how clinical, demographic, and systemic factors shape access and decision-making, alongside research on maternal complications such as hypertensive disorders and peripartum mental health. My research has been published in JAMA Pediatrics, Anesthesiology, and AJOG, and has contributed to both clinical practice and public dialogue, including features in The New York Times. My work aims to generate evidence that improves maternal outcomes and informs policy, clinical practice, and education in obstetric anesthesiology. Role Faculty Location UCSF at Mission Bay UCSF at Mount Zion UCSF at Parnassus Category Clinical Specialties Obstetric Anesthesia Education 12/05 - Obstetric Anesthesiology, Stanford University School of MedicineMS, 08/11 - Epidemiology, Stanford UniversityFRCA, 07/03 - Anesthesiology, Fellow of Royal College of Anaesthetists (UK)MBBS, 01/97 - Medicine, St. George's Hospital Medical School Publications Severe Perioperative Surgical Morbidity With Cesarean Delivery. Butwick A, Baer RJ, Farooqi N, Stephansson O, Jelliffe-Pawlowski L Obstetrics and gynecology . Aug 21, 2025 Trends in Neuraxial Labor Analgesia Utilization: Reply. Stockert E, Siadat S, Bateman BT, Martinez E, Butwick AJ, Leonard SA Anesthesiology . Aug 12, 2025 In Reply. Shields LE, Reyes C, Main EK, Butwick AJ, Gupta N, Krakowiak P Obstetrics and gynecology . Aug 1, 2025 Untitled Publication Bouthors AS, Hureau M, Butwick A International journal of obstetric anesthesia . Jun 23, 2025 Evidence Gaps in the Management of Intrauterine Hemorrhage-Control Device Failure for Atonic Postpartum Hemorrhage. Butwick AJ, Cecconi M, Ortner C, Di Simone N Obstetrical & gynecological survey . Jun 1, 2025 Untitled Publication Bouthors AS, Hureau M, Butwick A International journal of obstetric anesthesia . May 28, 2025 Standardized Criteria for Measuring Severe Maternal Morbidity in Placenta Accreta Spectrum Disorder. Einerson BD, Easter SR, Carusi D, Butwick AJ, Wright JD, Jauniaux E, Sentilhes L, Kingdom JCP, Lyell DJ, Silver RM, Zuckerwise LC Obstetrics and gynecology . Apr 11, 2025 Point-of-care ultrasound in obstetric anesthesia clinical practice. Aleshi P, Ortner CM, Butwick AJ Current opinion in anaesthesiology . Apr 8, 2025 Is prophylactic tranexamic acid effective in preventing postpartum hemorrhage? almost certainly no. Bouthors AS, Hureau M, Butwick A International journal of obstetric anesthesia . Mar 26, 2025 Procedure-Specific Preoperative Blood Ordering Practices in 25 North American Hospitals. Nicholas JA, Ural KG, Guinn NR, Panigrahi AK, Tan GM, Butwick AJ A&A practice . Mar 1, 2025 Pregnancy-Related Mortality in California Due to Obstetric Hemorrhage. Krakowiak P, Morton CH, McCain C, Sun D, Mathur D, Butwick AJ, Gupta N, Nijagal MA, Williams A, Seacrist M, Shields LE, Reyes C, Klassen M, Yznaga E, Main EK Obstetrics and gynecology . Feb 13, 2025 Trends in Neuraxial Labor Analgesia Utilization by Race and Ethnicity among Nulliparous Individuals Undergoing Spontaneous Vaginal Delivery, United States, 2007 to 2022. Stockert E, Siadat S, Bateman BT, Martinez E, Butwick AJ, Leonard SA Anesthesiology . Jan 14, 2025 Navigating coagulopathy in obstetric hemorrhage: The role of point-of-care testing. Gill N, Butwick A, Bell SF Best practice & research. Clinical anaesthesiology . Oct 9, 2024 Risk of postpartum hemorrhage with increasing first stage labor duration. Ladfors LV, Liu X, Sandström A, Lundborg L, Butwick AJ, Muraca GM, Snowden JM, Ahlberg M, Stephansson O Scientific reports . Sep 27, 2024 Sterile water injections for back pain in labour. Muraca GM, Kramer JLK, Butwick AJ BMJ (Clinical research ed.) . Jun 3, 2024 Variation in Hospital Neuraxial Labor Analgesia Rates in California. Parameshwar P, Guo N, Bentley J, Main E, Singer SJ, Peden CJ, Morris T, Ansari J, Butwick AJ Anesthesiology . Jun 1, 2024 Validity of ICD-10 diagnosis codes for placenta accreta spectrum disorders. Jotwani AR, Lyell DJ, Butwick AJ, Rwigi W, Leonard SA Paediatric and perinatal epidemiology . Mar 21, 2024 Trends in racial/ethnic disparities in postpartum hospital readmissions in California from 1997 to 2018. Tucker CM, Ma C, Mujahid MS, Butwick AJ, Girsen AI, Gibbs RS, Carmichael SL AJOG global reports . Mar 10, 2024 Evaluating tranexamic acid for the prevention and treatment of obstetric hemorrhage. Kowalczyk JJ, Cecconi M, Butwick AJ Current opinion in obstetrics & gynecology . Dec 26, 2023 A validation of The California Maternal Quality Care Collaborative obstetric hemorrhage risk assessment tool in a Swedish population. Ladfors LV, Butwick A, Stephansson O American journal of obstetrics & gynecology MFM . Dec 5, 2023 Prevalence and predictors for postpartum sleep disorders: a nationwide analysis. Sultan P, Guo N, Kawai M, Barwick FH, Carvalho B, Mackey S, Kallen MA, Gould CE, Butwick AJ The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians . Dec 1, 2023 The role of viscoelastic hemostatic assays for postpartum hemorrhage management and bedside intrapartum care. Katz D, Farber M, Getrajdman C, Hamburger J, Reale S, Butwick A American journal of obstetrics and gynecology . Aug 23, 2023 Predicting Placenta Accreta Spectrum Disorder: Are We There Yet? Ansari JR, Butwick AJ Anesthesia and analgesia . Aug 17, 2023 Anesthesia Considerations for Placenta Accreta Spectrum. Warrick CM, Sutton CD, Farber MM, Hess PE, Butwick A, Markley JC American journal of perinatology . Jun 19, 2023 Knowledge Gaps in Placenta Accreta Spectrum. Carusi DA, Duzyj CM, Hecht JL, Butwick AJ, Barrett J, Holt R, O'Rinn SE, Afshar Y, Gilner JB, Newton JM, Shainker SA, Pan-American Society for the Placenta Accreta Spectrum American journal of perinatology . Jun 19, 2023 Early Postpartum Hospital Encounters among Patients with Genitourinary and Wound Infections during Hospitalization for Birth. Leonard SA, Girsen AI, Trepman P, Carmichael SL, Darmawan K, Butwick AJ, Gibbs RS American journal of perinatology . May 22, 2023 In Reply. Butwick A, Miller SE Obstetrics and gynecology . May 1, 2023 Red Blood Cell Transfusion in Patients With Placenta Accreta Spectrum: A Systematic Review and Meta-analysis. Miller SE, Leonard SA, Meza PK, Ku S, Ren LY, Lyell DJ, Sultan P, Butwick A Obstetrics and gynecology . Nov 30, 2022 Postpartum care visits among commercially insured women in the United States. Butwick AJ, Bentley J, Daw J, Sultan P, Girsen A, Gibbs RS, Guo N AJOG global reports . Sep 19, 2022 Early postpartum readmissions: identifying risk factors at birth hospitalization. Girsen AI, Leonard SA, Butwick AJ, Joudi N, Carmichael SL, Gibbs RS AJOG global reports . Sep 13, 2022 Update on Applications and Limitations of Perioperative Tranexamic Acid. Patel PA, Wyrobek JA, Butwick AJ, Pivalizza EG, Hare GMT, Mazer CD, Goobie SM Anesthesia and analgesia . Aug 17, 2022 Hospital-level variation in rates of postpartum hemorrhage in California. Davis R, Guo N, Bentley J, Sie L, Ansari J, Bateman B, Main E, Butwick AJ Transfusion . Aug 3, 2022 Association of neuraxial labor analgesia with autism spectrum disorder in children: a systematic review and meta-analysis. Lumbreras-Marquez MI, Capdeville G, Ferrigno AS, Villela-Franyutti D, Bain PA, Campos-Zamora M, Butwick AJ, Farber MK International journal of obstetric anesthesia . Jul 14, 2022 Subsequent risk of stillbirth, preterm birth, and small for gestational age: A cross-outcome analysis of adverse birth outcomes. Bane S, Simard JF, Wall-Wieler E, Butwick AJ, Carmichael SL Paediatric and perinatal epidemiology . Apr 18, 2022 A data-driven health index for neonatal morbidities. De Francesco D, Blumenfeld YJ, Maric I, Mayo JA, Chang AL, Fallahzadeh R, Phongpreecha T, Butwick AJ, Xenochristou M, Phibbs CS, Bidoki NH, Becker M, Culos A, Espinosa C, Liu Q, Sylvester KG, Gaudilliere B, Angst MS, Stevenson DK, Shaw GM, Aghaeepour N iScience . Mar 22, 2022 Accuracy of visual estimation of blood loss in obstetrics using clinical reconstructions: an observational simulation cohort study. Athar MW, Abir G, Seay RC, Guo N, Butwick A, Carvalho B International journal of obstetric anesthesia . Mar 18, 2022 Association of Medicaid Expansion With Neuraxial Labor Analgesia Use in the United States: A Retrospective Cross-Sectional Analysis. Xiao MZX, Whitney D, Guo N, Sun EC, Wong CA, Bentley J, Butwick AJ Anesthesia and analgesia . Mar 1, 2022 Trends in eclampsia in the United States, 2009-2017: a population-based study. Xiao MZX, Whitney D, Guo N, Bentley J, Shaw GM, Druzin ML, Butwick AJ Journal of hypertension . Mar 1, 2022 Latest advances in postpartum hemorrhage management. Kumaraswami S, Butwick A Best practice & research. Clinical anaesthesiology . Feb 24, 2022 Viscoelastic haemostatic point-of-care assays in the management of postpartum haemorrhage: a narrative review. Dias JD, Butwick AJ, Hartmann J, Waters JH Anaesthesia . Feb 22, 2022 The relationship between INTEM/HEPTEM coagulation time ratio and heparin plasma concentration in obstetric patients: an exploratory in vitro investigation. Katz D, Leffert L, Getrajdman C, Sison M, Shin DW, Lin HM, Butwick A Canadian journal of anaesthesia = Journal canadien d'anesthesie . Jan 31, 2022 Placenta Accreta Spectrum Disorders: Knowledge Gaps in Anesthesia Care. Warrick CM, Markley JC, Farber MK, Balki M, Katz D, Hess PE, Padilla C, Waters JH, Weiniger CF, Butwick AJ Anesthesia and analgesia . Jan 24, 2022 Epidural labour analgesia and autism spectrum disorder: is the current evidence sufficient to dismiss an association? Butwick AJ, Abrams DA, Wong CA British journal of anaesthesia . Jan 15, 2022 Authors reply re: The Ten Group Classification System - First Things First. Ladfors LV, Muraca GM, Zetterqvist J, Butwick AJ, Stephansson O BJOG : an international journal of obstetrics and gynaecology . Jan 5, 2022 Current State and Future Direction of Postpartum Hemorrhage Risk Assessment. Ende HB, Butwick AJ Obstetrics and gynecology . Dec 1, 2021 Postpartum haemorrhage trends in Sweden using the Robson ten group classification system: a population-based cohort study. Ladfors LV, Muraca GM, Zetterqvist J, Butwick AJ, Stephansson O BJOG : an international journal of obstetrics and gynaecology . Oct 6, 2021 Evidence Mounts Refuting an Association Between Epidural Use and Neurodevelopmental Adverse Outcomes in Children. Butwick AJ, Wall-Wieler E JAMA network open . Oct 1, 2021 The association between postpartum hemorrhage and postpartum depression: A Swedish national register-based study. Liu C, Butwick A, Sand A, Wikström AK, Snowden JM, Stephansson O PloS one . Aug 11, 2021 The Society for Obstetric Anesthesia and Perinatology Coronavirus Disease 2019 Registry: An Analysis of Outcomes Among Pregnant Women Delivering During the Initial Severe Acute Respiratory Syndrome Coronavirus-2 Outbreak in the United States. Katz D, Bateman BT, Kjaer K, Turner DP, Spence NZ, Habib AS, George RB, Toledano RD, Grant G, Madden HE, Butwick AJ, Lynde G, Minehart RD, Beilin Y, Houle TT, Sharpe EE, Kodali B, Bharadwaj S, Farber MK, Palanisamy A, Prabhu M, Gonzales NY, Landau R, Leffert L Anesthesia and analgesia . Aug 1, 2021 Association of Epidural Labor Analgesia With Offspring Risk of Autism Spectrum Disorders. Wall-Wieler E, Bateman BT, Hanlon-Dearman A, Roos LL, Butwick AJ JAMA pediatrics . Jul 1, 2021 Association of Gestational Age with Postpartum Hemorrhage: An International Cohort Study. Butwick AJ, Liu C, Guo N, Bentley J, Main EK, Mayo JA, Shaw GM, Stephansson O Anesthesiology . Jun 1, 2021 Antepartum and postpartum anemia: a narrative review. Butwick AJ, McDonnell N International journal of obstetric anesthesia . Mar 29, 2021 Risk factors for postpartum readmission among women after having a stillbirth. DiTosto JD, Liu C, Wall-Wieler E, Gibbs RS, Girsen AI, El-Sayed YY, Butwick AJ, Carmichael SL American journal of obstetrics & gynecology MFM . Mar 9, 2021 Association between Neuraxial Labor Analgesia and Neonatal Morbidity after Operative Vaginal Delivery. Butwick AJ, Wong CA, Lee HC, Blumenfeld YJ, Guo N Anesthesiology . Jan 1, 2021 In Reply. Butwick AJ, Wall-Wieler E Obstetrics and gynecology . Dec 1, 2020 Postpartum Hemorrhage: Wherefore Art Thou, Hyperfibrinolysis? Butwick AJ Anesthesia and analgesia . Nov 1, 2020 Accuracy of postpartum hemorrhage coding in the Swedish Pregnancy Register. Ladfors LV, Muraca GM, Butwick A, Edgren G, Stephansson O Acta obstetricia et gynecologica Scandinavica . Oct 4, 2020 Evaluation of US State-Level Variation in Hypertensive Disorders of Pregnancy. Butwick AJ, Druzin ML, Shaw GM, Guo N JAMA network open . Oct 1, 2020 Machine learning: the next frontier in obstetric anesthesiology? Butwick AJ, McCarthy RJ International journal of obstetric anesthesia . Sep 14, 2020 Opioid Prescription and Persistent Opioid Use After Ectopic Pregnancy. Wall-Wieler E, Shover CL, Hah JM, Carmichael SL, Butwick AJ Obstetrics and gynecology . Sep 1, 2020 Racial and Ethnic Disparities in Hospital-Based Care Associated with Postpartum Depression. Chan AL, Guo N, Popat R, Robakis T, Blumenfeld YY, Main E, Scott KA, Butwick AJ Journal of racial and ethnic health disparities . May 30, 2020 Maternal Health after Stillbirth: Postpartum Hospital Readmission in California. Wall-Wieler E, Butwick AJ, Gibbs RS, Lyell DJ, Girsen AI, El-Sayed YY, Carmichael SL American journal of perinatology . May 4, 2020 How do I manage severe postpartum hemorrhage? Butwick A, Lyell D, Goodnough L Transfusion . Apr 22, 2020 Combatting myths and misinformation about obstetric anesthesia. Butwick AJ, Weiniger CF International journal of obstetric anesthesia . Sep 7, 2019 A call for multidisciplinary cesarean delivery analgesia care. Weiniger CF, Ioscovich A, Butwick AJ American journal of obstetrics & gynecology MFM . Aug 5, 2019 Severe Maternal Morbidity Among Stillbirth and Live Birth Deliveries in California. Wall-Wieler E, Carmichael SL, Gibbs RS, Lyell DJ, Girsen AI, El-Sayed YY, Butwick AJ Obstetrics and gynecology . Aug 1, 2019 Determinants of women's dissatisfaction with anaesthesia care in labour and delivery. Yurashevich M, Carvalho B, Butwick AJ, Ando K, Flood PD Anaesthesia . Jul 1, 2019 Assessing the Association Between Blood Loss and Postoperative Hemoglobin After Cesarean Delivery: A Prospective Study of 4 Blood Loss Measurement Modalities. Fedoruk K, Seligman KM, Carvalho B, Butwick AJ Anesthesia and analgesia . May 1, 2019 Maternal and Infant Adverse Outcomes Associated with Mild and Severe Preeclampsia during the First Year after Delivery in the United States. Ton TGN, Bennett MV, Incerti D, Peneva D, Druzin M, Stevens W, Butwick AJ, Lee HC American journal of perinatology . Feb 19, 2019 The Crystalloid Co-Load: Clinically as Effective as Colloid Preload for Preventing Hypotension from Spinal Anaesthesia for Caesarean Delivery. Riley ET, Mangum K, Carvalho B, Butwick AJ Turkish journal of anaesthesiology and reanimation . Feb 1, 2019 Oral vs intravenous iron therapy for postpartum anemia: a systematic review and meta-analysis. Sultan P, Bampoe S, Shah R, Guo N, Estes J, Stave C, Goodnough LT, Halpern S, Butwick AJ American journal of obstetrics and gynecology . Dec 19, 2018 Prepregnancy maternal body mass index and venous thromboembolism: a population-based cohort study. Butwick AJ, Bentley J, Leonard SA, Carmichael SL, El-Sayed YY, Stephansson O, Guo N BJOG : an international journal of obstetrics and gynaecology . Dec 19, 2018 United States State-Level Variation in the Use of Neuraxial Analgesia During Labor for Pregnant Women. Butwick AJ, Bentley J, Wong CA, Snowden JM, Sun E, Guo N JAMA network open . Dec 7, 2018 Maternal Body Mass Index and Use of Labor Neuraxial Analgesia: A Population-based Retrospective Cohort Study. Butwick AJ, Wong CA, Guo N Anesthesiology . Sep 1, 2018 Effect of Maternal Body Mass Index on Postpartum Hemorrhage. Butwick AJ, Abreo A, Bateman BT, Lee HC, El-Sayed YY, Stephansson O, Flood P Anesthesiology . Apr 1, 2018 Prevalence of Depression Among Women of Reproductive Age in the United States. Guo N, Robakis T, Miller C, Butwick A Obstetrics and gynecology . Apr 1, 2018 The Society for Obstetric Anesthesia and Perinatology Consensus Statement on the Anesthetic Management of Pregnant and Postpartum Women Receiving Thromboprophylaxis or Higher Dose Anticoagulants. Leffert L, Butwick A, Carvalho B, Arendt K, Bates SM, Friedman A, Horlocker T, Houle T, Landau R, Dubois H, Fernando R, Houle T, Kopp S, Montgomery D, Pellegrini J, Smiley R, Toledo P, members of the SOAP VTE Taskforce Anesthesia and analgesia . Mar 1, 2018 Mode of anaesthesia for Caesarean delivery and maternal morbidity: can we overcome confounding by indication? Butwick AJ, Palanisamy A British journal of anaesthesia . Feb 14, 2018 Accuracy of international classification of diseases, ninth revision, codes for postpartum hemorrhage among women undergoing cesarean delivery. Butwick AJ, Walsh EM, Kuzniewicz M, Li SX, Escobar GJ Transfusion . Jan 26, 2018 Tranexamic Acid for the Management of Obstetric Hemorrhage. Butwick AJ, Deneux-Tharaux C, Sentilhes L Obstetrics and gynecology . Dec 1, 2017 Availability and Readability of Online Patient Education Materials Regarding Regional Anesthesia Techniques for Perioperative Pain Management. Kumar G, Howard SK, Kou A, Kim TE, Butwick AJ, Mariano ER Pain medicine (Malden, Mass.) . Oct 1, 2017 A Standardized Approach for Transfusion Medicine Support in Patients With Morbidly Adherent Placenta. Panigrahi AK, Yeaton-Massey A, Bakhtary S, Andrews J, Lyell DJ, Butwick AJ, Goodnough LT Anesthesia and analgesia . Aug 1, 2017 Risk Factors for Severe Postpartum Hemorrhage After Cesarean Delivery: Case-Control Studies. Butwick AJ, Ramachandran B, Hegde P, Riley ET, El-Sayed YY, Nelson LM Anesthesia and analgesia . Aug 1, 2017 Neuraxial Anesthesia in Obstetric Patients Receiving Thromboprophylaxis With Unfractionated or Low-Molecular-Weight Heparin: A Systematic Review of Spinal Epidural Hematoma. Leffert LR, Dubois HM, Butwick AJ, Carvalho B, Houle TT, Landau R Anesthesia and analgesia . Jul 1, 2017 Nitrous oxide for labor analgesia: Utilization and predictors of conversion to neuraxial analgesia. Sutton CD, Butwick AJ, Riley ET, Carvalho B Journal of clinical anesthesia . Apr 19, 2017 Obstetric interventions and maternal morbidity among women who experience severe postpartum hemorrhage during cesarean delivery. Seligman K, Ramachandran B, Hegde P, Riley ET, El-Sayed YY, Nelson LM, Butwick AJ International journal of obstetric anesthesia . Mar 22, 2017 Improving post-caesarean analgesia: where to next? Butwick A BJOG : an international journal of obstetrics and gynaecology . Mar 21, 2017 Effect of a High-Rate Versus a Low-Rate Oxytocin Infusion for Maintaining Uterine Contractility During Elective Cesarean Delivery: A Prospective Randomized Clinical Trial. Duffield A, McKenzie C, Carvalho B, Ramachandran B, Yin V, El-Sayed YY, Riley ET, Butwick AJ Anesthesia and analgesia . Mar 1, 2017 Comparative Effectiveness of Lower Leg Compression Devices Versus Sequential Compression Devices to Prevent Postspinal Hypotension During Cesarean Delivery. Carvalho B, Zheng LL, Butwick A Anesthesia and analgesia . Feb 1, 2017 Postcesarean delivery analgesia. Carvalho B, Butwick AJ Best practice & research. Clinical anaesthesiology . Jan 12, 2017 National and International Guidelines for Patient Blood Management in Obstetrics: A Qualitative Review. Shaylor R, Weiniger CF, Austin N, Tzabazis A, Shander A, Goodnough LT, Butwick AJ Anesthesia and analgesia . Jan 1, 2017 Postpartum hemorrhage following vaginal delivery: risk factors and maternal outcomes. Miller CM, Cohn S, Akdagli S, Carvalho B, Blumenfeld YJ, Butwick AJ Journal of perinatology : official journal of the California Perinatal Association . Dec 15, 2016 Patterns and predictors of severe postpartum anemia after Cesarean section. Butwick AJ, Walsh EM, Kuzniewicz M, Li SX, Escobar GJ Transfusion . Sep 13, 2016 The impact of postpartum hemoglobin levels on maternal quality of life after delivery: a prospective exploratory study. Miller CM, Ramachandran B, Akbar K, Carvalho B, Butwick AJ Annals of hematology . Sep 13, 2016 Clinical and microbiological features of maternal sepsis: a retrospective study. Abir G, Akdagli S, Butwick A, Carvalho B International journal of obstetric anesthesia . Sep 10, 2016 Knowledge of blood loss at delivery among postpartum patients. Farber MK, Miller CM, Ramachandran B, Hegde P, Akbar K, Goodnough LT, Butwick AJ PeerJ . Aug 31, 2016 Evaluation of high-risk obstetric patients: a survey of US academic centers. Butwick AJ, Tiouririne M Journal of clinical anesthesia . Jul 14, 2016 Maternal outcomes of term breech presentation delivery: impact of successful external cephalic version in a nationwide sample of delivery admissions in the United States. Weiniger CF, Lyell DJ, Tsen LC, Butwick AJ, Shachar B, Callaghan WM, Creanga AA, Bateman BT BMC pregnancy and childbirth . Jul 8, 2016 Can extra carbs improve perinatal outcomes? Sutton C, Butwick AJ BJOG : an international journal of obstetrics and gynaecology . Mar 1, 2016 Racial and Ethnic Disparities in Mode of Anesthesia for Cesarean Delivery. Butwick AJ, Blumenfeld YJ, Brookfield KF, Nelson LM, Weiniger CF Anesthesia and analgesia . Feb 1, 2016 Israeli survey of anesthesia practice related to placenta previa and accreta. Ioscovich A, Shatalin D, Butwick AJ, Ginosar Y, Orbach-Zinger S, Weiniger CF Acta anaesthesiologica Scandinavica . Nov 24, 2015 Does Time of Delivery Influence the Risk of Neonatal Morbidity? Brookfield KF, O'Malley K, El-Sayed YY, Blumenfeld YJ, Butwick AJ American journal of perinatology . Nov 23, 2015 Labor outcome at extremely advanced maternal age. Osmundson SS, Gould JB, Butwick AJ, Yeaton-Massey A, El-Sayed YY American journal of obstetrics and gynecology . Nov 18, 2015 In Response. Bateman BT, Butwick AJ, Huybrechts KF Anesthesia and analgesia . Nov 1, 2015 Checklists and multidisciplinary team performance during simulated obstetric hemorrhage. Hilton G, Daniels K, Goldhaber-Fiebert SN, Lipman S, Carvalho B, Butwick A International journal of obstetric anesthesia . Aug 21, 2015 Transfusion and coagulation management in major obstetric hemorrhage. Butwick AJ, Goodnough LT Current opinion in anaesthesiology . Jun 1, 2015 Mode of anaesthesia for preterm Caesarean delivery: secondary analysis from the Maternal-Fetal Medicine Units Network Caesarean Registry. Butwick AJ, El-Sayed YY, Blumenfeld YJ, Osmundson SS, Weiniger CF British journal of anaesthesia . May 7, 2015 Morbidity associated with cesarean delivery in the United States: is placenta accreta an increasingly important contributor? Creanga AA, Bateman BT, Butwick AJ, Raleigh L, Maeda A, Kuklina E, Callaghan WM American journal of obstetrics and gynecology . May 5, 2015 In response. Ducloy-Bouthors AS, Vallet B, Susen S, Wong CA, Butwick A, Lockhart E Anesthesia and analgesia . Apr 1, 2015 Risk Factors for Prolonged Postpartum Length of Stay Following Cesarean Delivery. Blumenfeld YJ, El-Sayed YY, Lyell DJ, Nelson LM, Butwick AJ American journal of perinatology . Jan 16, 2015 Second-line uterotonics and the risk of hemorrhage-related morbidity. Butwick AJ, Carvalho B, Blumenfeld YJ, El-Sayed YY, Nelson LM, Bateman BT American journal of obstetrics and gynecology . Jan 9, 2015 The impact of advanced maternal age on peripartum thromboelastographic coagulation profiles: a prospective observational exploratory study. Butwick A, Gutierrez MC, Hilton G Canadian journal of anaesthesia = Journal canadien d'anesthesie . Dec 31, 2014 Antenatal corticosteroids for preterm premature rupture of membranes: single or repeat course? Brookfield KF, El-Sayed YY, Chao L, Berger V, Naqvi M, Butwick AJ American journal of perinatology . Dec 29, 2014 Elective ceasarean section at 38 weeks versus 39 weeks: neonatal and maternal outcomes in a randomised controlled trial. Cho Y, Carvalho B, Butwick A, Blumenfeld Y, Riley E BJOG : an international journal of obstetrics and gynaecology . Dec 1, 2014 Patterns of second-line uterotonic use in a large sample of hospitalizations for childbirth in the United States: 2007-2011. Bateman BT, Tsen LC, Liu J, Butwick AJ, Huybrechts KF Anesthesia and analgesia . Dec 1, 2014 Medical advances in the treatment of postpartum hemorrhage. Ducloy-Bouthors AS, Susen S, Wong CA, Butwick A, Vallet B, Lockhart E Anesthesia and analgesia . Nov 1, 2014 Preventing spinal hypotension during Caesarean delivery: what is the latest? Butwick AJ, Columb MO, Carvalho B British journal of anaesthesia . Jul 30, 2014 Risk factors for obstetric morbidity in patients with uterine atony undergoing caesarean delivery. Butwick AJ, Carvalho B, El-Sayed YY British journal of anaesthesia . Jun 6, 2014 Anticoagulant prescribing practices and anesthetic interventions among anticoagulated pregnant patients: a retrospective study. Butwick A, Hass C, Wong J, Lyell D, El-Sayed Y International journal of obstetric anesthesia . Mar 28, 2014 Perioperative and transfusion outcomes in women undergoing cesarean hysterectomy for abnormal placentation. Brookfield KF, Goodnough LT, Lyell DJ, Butwick AJ Transfusion . Nov 4, 2013 Preferred spoken language mediates differences in neuraxial labor analgesia utilization among racial and ethnic groups. Caballero JA, Butwick AJ, Carvalho B, Riley ET International journal of obstetric anesthesia . Sep 11, 2013 Methodological queries about point-of-care haemoglobin data. Butwick A Anaesthesia . May 1, 2013 Anesthetic management of a parturient with VACTERL association undergoing Cesarean delivery. Hilton G, Mihm F, Butwick A Canadian journal of anaesthesia = Journal canadien d'anesthesie . Mar 22, 2013 Postpartum hemorrhage and low fibrinogen levels: the past, present and future. Butwick AJ International journal of obstetric anesthesia . Mar 7, 2013 What's new in obstetric anesthesia in 2011? Reducing maternal adverse outcomes and improving obstetric anesthesia quality of care. Butwick A Anesthesia and analgesia . Sep 13, 2012 2012 Gerard W. Ostheimer Lecture--What's new in obstetric anesthesia? Butwick AJ International journal of obstetric anesthesia . Sep 6, 2012 Postpartum hemorrhage treated with a massive transfusion protocol at a tertiary obstetric center: a retrospective study. Gutierrez MC, Goodnough LT, Druzin M, Butwick AJ International journal of obstetric anesthesia . May 29, 2012 Managing patients with abnormal placentation: what are the best anesthetic and transfusion strategies? Butwick AJ Anesthesiology . May 1, 2012 Platelet counts and coagulation tests prior to neuraxial anesthesia in patients with preeclampsia: a retrospective analysis. Sultan P, Butwick A Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis . Apr 24, 2012 Continuous spinal anesthesia for Cesarean hysterectomy and massive hemorrhage in a parturient with placenta increta. Sultan P, Hilton G, Butwick A, Carvalho B Canadian journal of anaesthesia = Journal canadien d'anesthesie . Mar 7, 2012 Non-invasive haemoglobin measurement in patients undergoing elective Caesarean section. Butwick A, Hilton G, Carvalho B British journal of anaesthesia . Nov 23, 2011 Epidural catheter removal in patients on warfarin thromboprophylaxis: a more cautious interpretation of results required? Carvalho B, Mariano ER, Butwick AJ Regional anesthesia and pain medicine . Nov 1, 2011 The Proseal laryngeal mask airway and elective caesarean section. Dyer RA, James MF, Butwick AJ, Carvalho B Anaesthesia and intensive care . Jul 1, 2011 An in vitro investigation of the coagulation effects of exogenous oxytocin using thromboelastography in healthy parturients. Butwick A, Harter S Anesthesia and analgesia . Jun 3, 2011 Non-invasive measurement of hemoglobin during cesarean hysterectomy: a case series. Butwick AJ, Hilton G, Riley ET, Carvalho B International journal of obstetric anesthesia . Jun 2, 2011 Oxytocin for labour and caesarean delivery: implications for the anaesthesiologist. Dyer RA, Butwick AJ, Carvalho B Current opinion in anaesthesiology . Jun 1, 2011 How we treat: transfusion medicine support of obstetric services. Goodnough LT, Daniels K, Wong AE, Viele M, Fontaine MF, Butwick AJ Transfusion . May 4, 2011 The effectiveness of preemptive sphenopalatine ganglion block on postoperative pain and functional outcomes after functional endoscopic sinus surgery. Cho DY, Drover DR, Nekhendzy V, Butwick AJ, Collins J, Hwang PH International forum of allergy & rhinology . Apr 13, 2011 The association between thromboelastographic parameters and total estimated blood loss in patients undergoing elective cesarean delivery. Butwick A, Ting V, Ralls LA, Harter S, Riley E Anesthesia and analgesia . Apr 7, 2011 The postoperative anaesthetic review. Sultan P, Jigajinni S, McGlennan A, Butwick A Journal of perioperative practice . Apr 1, 2011 Retrospective analysis of anesthetic interventions for obese patients undergoing elective cesarean delivery. Butwick A, Carvalho B, Danial C, Riley E Journal of clinical anesthesia . Nov 1, 2010 ST depression at caesarean section and the relation to oxytocin dose. A randomised controlled trial. Butwick A, Dyer R BJOG : an international journal of obstetrics and gynaecology . Aug 1, 2010 Anticoagulant and antithrombotic drugs in pregnancy: what are the anesthetic implications for labor and cesarean delivery? Butwick AJ, Carvalho B Journal of perinatology : official journal of the California Perinatal Association . Jun 17, 2010 Neuraxial anesthesia in obstetric patients receiving anticoagulant and antithrombotic drugs. Butwick AJ, Carvalho B International journal of obstetric anesthesia . Mar 3, 2010 Minimum effective bolus dose of oxytocin during elective Caesarean delivery. Butwick AJ, Coleman L, Cohen SE, Riley ET, Carvalho B British journal of anaesthesia . Mar 1, 2010 A survey of perioperative and postoperative anesthetic practices for cesarean delivery. Aiono-Le Tagaloa L, Butwick AJ, Carvalho B Anesthesiology research and practice . Feb 24, 2010 Retrospective analysis of transfusion outcomes in pregnant patients at a tertiary obstetric center. Butwick AJ, Aleshi P, Fontaine M, Riley ET, Goodnough LT International journal of obstetric anesthesia . Jul 22, 2009 Obstetric hemorrhage during an EXIT procedure for severe fetal airway obstruction. Butwick A, Aleshi P, Yamout I Canadian journal of anaesthesia = Journal canadien d'anesthesie . Apr 25, 2009 Intraoperative forced air-warming during cesarean delivery under spinal anesthesia does not prevent maternal hypothermia. Butwick AJ, Lipman SS, Carvalho B Anesthesia and analgesia . Nov 1, 2007 Vaginal twin delivery: a survey and review of location, anesthesia coverage and interventions. Carvalho B, Saxena A, Butwick A, Macario A International journal of obstetric anesthesia . Sep 18, 2007 Can we improve maternal outcome for high-risk obstetric patients? Butwick AJ, Carvalho B International journal of obstetric anesthesia . Aug 14, 2007 Neuraxial anesthesia for cesarean delivery in a parturient with type 1 von Willebrand disease and scoliosis. Butwick AJ, Carvalho B Journal of clinical anesthesia . May 1, 2007 Successful spinal blockade in a parturient with myotonia congenita. Butwick AJ, Riley ET International journal of obstetric anesthesia . Apr 23, 2007 The effect of colloid and crystalloid preloading on thromboelastography prior to Cesarean delivery. Butwick A, Carvalho B Canadian journal of anaesthesia = Journal canadien d'anesthesie . Mar 1, 2007 Remifentanil patient-controlled analgesia in labor. Butwick A, Carvalho B Anesthesia and analgesia . Jan 1, 2006 Management of pregnancy in a patient with beta thalassaemia major. Butwick A, Findley I, Wonke B International journal of obstetric anesthesia . Oct 1, 2005 Recombinant factor VIIa for life-threatening post-partum haemorrhage. Butwick AJ, Riley ET, Ahonen J, Jokela R British journal of anaesthesia . Oct 1, 2005 Maternal and neonatal side-effects of remifentanil patient-controlled analgesia in labour. Volikas I, Butwick A, Wilkinson C, Pleming A, Nicholson G British journal of anaesthesia . Aug 19, 2005 Ventilator-assisted nasotracheal intubation. Butwick A, Garewal D Anaesthesia . Feb 1, 2004 A pilot study of the effect of the Queen's Square external bladder stimulator on urinary retention after knee replacement surgery. Butwick A, Carter P, Dolin SJ Anaesthesia . Jun 1, 2003
