- Water birth
Water birth is a method of giving birth, which involves immersion in warm water. Proponents believe this method to be safe and provides many benefits for both mother and
infant, including pain relief and a less traumatic birth experience for the baby. However, critics argue that the procedure introduces unnecessary risks to the infant such as infection and water inhalation.
During the 1960s, Russian researcher Igor Charkovsky undertook considerable research into the safety and possible benefits of water birth in the Soviet Union. In the late 1960s, French
obstetrician Frederick Leboyerdeveloped the practice of immersing newly-born infants in warm water to help ease the transition from the womb to the outside world, and to mitigate the effects of any possible birth trauma.
Another French obstetrician,
Michel Odent, took Leboyer's work further, using the warm-water birth pool for pain relief for the mother, and as a way to normalize the birth process. When some women refused to get out of the water to finish giving birth, Odent started researching the possible benefits for the baby of being born under water, as well as the potential problems in such births. By the late 1990s, thousands of women had given birth at Odent's birthing centerat Pithiviers, and the notion of water birth had spread to many other Western countries.
Water birth first came to the United States through couples giving birth at home, but soon was introduced into the medical environment of hospitals and free-standing birth centers by midwives and obstetricians. In 1991, Monadnock Community Hospital [ [http://www.monadnockhospital.org/pages/OB_BirthingOptions.cfm Monadnock Community Hospital] ] in
Peterborough, New Hampshirebecame the first USAhospital to create a protocol for giving birth in water. By 2005, there were over 9000 hospitals in the US that had adopted such protocols. More than three-quarters of all National Health Servicehospitals in the UK provide this option for laboring women.
The benefits of water birth and its history among some primitive peoples has been advanced as evidence in support of the
aquatic ape hypothesis[ [http://www.bbc.co.uk/radio4/science/scarsofevolution.shtml "Scars of Evolution"] - Presented by Sir David Attenborough, a two part BBC radio 4 series examining the 'aquatic ape hypothesis'] ] .
Considerable research has been undertaken into the safety of water birth. Two of the most prolific researchers have been
Michel Odentand the American obstetrician Michael Rosenthal. Dianne Garland, a midwife in the UK, has focused on gathering research through the National Health Servicesystem, and has published a book called, "Waterbirth: An Attitude to Care". In the US, Barbara Harper, a nurse and childbirth educator, has explored waterbirth throughout the world, and chronicled the history and current use of waterbirth in dozens of countries in her book, "Gentle Birth Choices". Harper has compiled an extensive bibliography of research on the subject, which can be seen at the website for Waterbirth International. [ [http://www.waterbirth.org/store/catalog/images/Documents/Bibliography2004.pdf] , waterbirth.org (PDF)]
For the baby
Childbirthcan be a strenuous experience for the baby. Properly heated water [In most countries, the usual temperature range is roughly 92 to 100 degrees Fahrenheit; this issue is explored in an article by Barbara Harper, [http://data.memberclicks.com/site/wi/MIDIRS_article_BH.PDF "Taking the plunge: reevaluating waterbirth temperature guidelines",] MIDIRS, January 2003] helps to ease the transition from the birth canal to the outside world because the warm liquid resembles the familiar intra-uterine environment, and softens light, colors and noises.
For the mother
Harper reports that water birth is an effective form of
pain managementduring labor and delivery (Harper 2000). Water birth is a form of hydrotherapywhich, in studies, has been shown to be an effective form of pain management for a variety of conditions especially lower back pain(a common complaint of women in labor)Fact|date=June 2007. In an appraisal of 17 randomized trials, two controlled studies, 12 cohort studies, and two case reports, it was concluded that there was a definite "benefit from hydrotherapy in pain, function, self-efficacy and affect, joint mobility, strength, and balance, particularly among older adults, subjects with rheumatic conditions and chronic low back pain," (Geytenbeek 2002). When compared with conventional pain management techniques for labor and delivery (e.g. anesthesiaand narcotics) hydrotherapy is also possibly a safer alternative. In studies, epidural anesthesia(EDA), is correlated with an increased rate of instrumental (e.g. forceps in childbirth) delivery rates and also cesarean sectionrates (Ros et al. 2007). Full immersion in water promotes physiological responses in the mother that reduce pain including a redistribution of blood volume, which stimulates the release of oxytocinand vasopressin(Katz 1990), the latter which also increases oxytocin blood levels (Odent 1998). The Cochrane Database of Systematic Reviews [ [http://www.mrw.interscience.wiley.com/cochrane/clsysrev/articles/CD000111/frame.html Cochrane Database of Systematic Reviews] ] has found that "the statistically significant reduction in maternal perception of pain and in the rate of epidural analgesia suggest that water immersion during the first stage of labour is beneficial for some women. No evidence was found that this benefit was associated with poorer outcomes for babies or longer labours."
Intact perineum/decreased episiotomy
Water birth is believed to aid stretching of the
perineumand decrease the risk of skin tears. Support from the water slows crowning of the infant's head and offers perineal support [(Garland 2000)] , which decreases the risk of tearing and reduces the use of episiotomy, a surgical procedure which can cause a number of complications. Indeed, there is a zero episiotomy rate in the waterbirth literature (Harper 2000). Moreover, "perineal trauma is reported to be generally less severe, with more intact perineums for multips, but in some literature about the same frequency of tears for pimips in or out of the water," (Harper 2000; also see Burn 1993 and Garland 1997).
Risks and concerns
A large-scale study of waterbirth in the
UK(1994-1996) showed a decrease in perinatal mortality (1.2 per 1,000 for waterbirth vs. 4 per 1,000 for conventional birth during the same period) (Harper 2000; Gilbert 1999; London: Office for National Statistics 2005). While of the 150,000 recorded waterbirths worldwide between 1985 and 1999, problems comparable to non-water births did arise, "there are no valid reports of infants deaths due to water aspirationor inhalation," [(Harper 2000)] .
A review of the literature on water birth suggests that any controversy in the medical community stems from OBGYN and pre-natal care providers who generally support water birth, on the one hand, and
pediatricspecialists who criticize water birth, on the other (see Schuman 2006). While this is by no means a universal divide, it appears to correlate with the "do no harm" credo. The American Academy of Pediatrics2005 statement on water birth explains that because to date there is no adequate randomized controlled study to demonstrate any benefit to the newborn (only concern over possible complications), when parents are informed about water birth, risks (rather than benefits) should be stressed (Schuman 2006). However, on the other hand, studies have shown that laboring in water does offer significant benefits to the mother (as cited above). While as of 2006 the American College of Obstetricians and Gynecologistshad not taken an official position on water birth (Schuman 2006), the Royal College of Obstetricians and Gynaecologistsand the Royal College of Midwivesexplicitly support, "Immersion in water during labour and birth," (Royal College of Midwives 2006). Studies that are critical of water birth generally object to or cite evidence from "poorly managed" or un-monitored water birth by inexperienced care providers [(e.g. Zimmermann et al. 1993)] .
Another concern is that the water could increase the risk of infection. [ [http://www.bmj.com/cgi/content/full/309/6953/511 Water Birth and Infection in Babies - British Medical Journal] ] In a
randomized controlled trialof the effects of water labor in Canada, no difference was noted in the low rates of maternal and newborn signs of infection in women with ruptured membranes [(Rush 1996)] . Due to the rigorous protocols for cleaning birthing tubs between labors (especially in hospitals), there is little (if any) risk of transferring bacteria from infant to mother or mother to infant. In a 1999 study of bacterial cultures carried out at the Oregon Health Sciences UniversityHospital, there were no instances of bacteria cultured from the birth pool itself. While " Pseudomonas" bacteria (common in tap water) were present, even those infants that tested positive for the bacteria needed no treatment for infections [(Harper 2000). These findings confirm those of a British study conducted over a 3-year period (Brown 1998)] .
Due to the documented relaxing effects of water Fact|date=June 2007, laboring in water is sometimes associated with a decrease in the intensity of
contractions, and is thus thought to slow labor. While water birth experts (e.g. Harper, RN) argue that this must be evaluated on a case-by-case basis, some hospitals have adopted a "5 centimeter" rule, allowing women to enter the tub only once the cervixhas already expanded to 5 centimeters (Harper 2000).
Maternal blood loss
For care providers who are inexperienced in delivery in water, it may be difficult to assess the amount of maternal blood loss. While well-developed methods of determining maternal blood loss in water do exist [(Harper 2000)] , many providers prefer to deliver the
placenta"on land" for this reason (e.g. the University of Michigan hospital).
Water birth is accepted and practiced in many parts of the
United States, Canada, Australia, and New Zealand, as well as many European countries, including the United Kingdomand Germany, where manySpecify|date=June 2007 maternity clinics have birthing tubs. ManySpecify|date=June 2007 independent birthing centers and many home birthmidwives offer water birth services. At present, water birth is often practiced by those who choose to have a home birth, because the majority of hospitals have not yet installed proper birth pools in their maternitywards. In 2006, Waterbirth Internationallisted more than 300 U.S. hospitals that offered such facilities. At least two such hospitals were listed in the 2006 U.S. News and World Report"Honor Roll" of best U.S. hospitals: Barnes-Jewish Hospitalin St. Louis, Missouri and the University of Michiganhospital in Ann Arbor, MI.
* Flade, Ines: Rundbrief Nummer 2. "Einiges über die Wassergeburt."
* Geburtsberichte, Geburtshaus und mehr e. V. Jena, Jena 1999.
* Schroeter, Ken. [http://pediatrics.aappublications.org/cgi/content/full/114/3/855 "Water Births: A Naked Emperor"] "Pediatrics", Vol. 114 No. 3, September 2004, pp. 855-858 (critical commentary in a mainstream medical journal)
* Garland, Dianne. "Waterbirth: An Attitude to Care", Books for Midwives PR, UK, 2000 1 5947 7067 0
* Harper, Barbara, RN. "Waterbirth Basics: From Newborn Breathing to Hospital Protocols". In Midwifery Today Magazine, 2000.
* Geytenbeek, Jenny. "Evidence of effective hydrotherapy". In Physiotherapy. V. 88(9):514-529, 2002.
* Ros, Andrea, Ricardo Felberbaum, Iris Jahnke, Klaus Diedrich, Peter Schmucker, and Michael Huppe. 2007 "Epidural anaethesia for labour: does it influence the mode of delivery?" In Archives of Gynecology and Obstetrics. V. 275(4):269-274(6).
* Katz, V., et al. (1990, Feb.). A comparison of
bed restand immersion for treating the edema of pregnancy. Obstet and Gynecol 75 (2): 147-51
* Odent, M. (1998, March). Use of water during labor—updated recommendations. MIDIRS 8 (1): 68-9
* Burn, E., Greenish, K. (1993). Water Birth. Pooling information. Nursing Times 89 (8): 47-9.
* Garland, D., Jones, K. (1997, June). Ibid.
* Gilbert, R., Tookey, P. (1999, Aug. 21). Perinatal mortality and morbidity among babies delivered in water:surveillance study and postal survey. BMJ 319(7208): 483-7.
* Office of National Statistics. 2007. "Mortality Stastics: Childhood, infant and perinatal - Review of the Registrar General on deaths in England and Wales, 2005." Series DH3 No. 38. London.
* Schuman, Andrew. 2006. "When parents-to-be ask about water birth." In Modern Medicine.
* Royal College of Midwives. 2006. "Immersion in water during labour and birth." Joint Position Paper no. 1. London, Royal College of Obstetricians and Gynecologists and Royal College of Midwives.
* Zimmerman R, Huch A, Huch R. 1993. "Water birth—Is it safe?" In the Journal of Perinatal Medicine 21:5.
* Johnson, Paul. (1996). Birth under water – to breathe or not to breathe. B J of Obstet Gynecol 103 (3): 202-8.
* Fewell, J.E., Johnson, P. (1983). Upper airway dynamics during breathing and during apnea in fetal lambs. J of Physiol 339: 495-504.
* Harding, R., Johnson, P., McClelland, M. (1978) Liquid sensitive laryngeal receptors in the developing sheep, cat, and monkey. J of Physiol 277: 409-22.
* Eriksson, M., et al. (1996, Aug.). Warm tub bath during labor. A study of 1385 women with prelabor rupture of the membranes after 34 weeks of gestation. Acta Obstet et Gynecol Scand 75 (7): 642-644.
* Garland, D., Jones, K. (1997, June). Ibid.
* Siegel, P. (1960). Does bath water enter the vagina? Journal of Obstet and Gynecol 15: 660-1.
* Rush, J., et al. (1996, Sept.). The effects of whirlpool baths in labor: a randomized, controlled trial. Birth 23 (3):136-43.
* Brown, L. (1998, April). The tide of waterbirth has turned: audit of water birth. British Journal of Midwifery 6(4): 236-43.
* "New Active Birth — A Concise Guide to Natural Childbirth,'
Janet Balaskas, HarperCollins, UK, 1995 ISBN 0-7225-2566-4
* " [http://www.amazon.com/dp/1594770670 Gentle Birth Choices] ",
Barbara Harper, Inner Traditions, USA, 2005 ISBN 1-59477-067-0
Having a Great Birth in Australia," David Vernon, Australian College of Midwives, Canberra, 2005 ISBN 0-9751674-3-X
* " [http://www.waterbirthinfo.com/materials.html Water Baby: Experiences of Waterbirth] " an award-winning documentary by filmmaker Karil Daniels
* [http://www.waterbirthinfo.com All About Waterbirth and Water Babies: The Waterbirth Website]
* [http://web.mac.com/david.vernon/iWeb/Having%20a%20Great%20Birth%20in%20Australia/Welcome%20-%20Great%20Birth.html Having a Great Birth in Australia]
* [http://news.bbc.co.uk/1/hi/health/2173451.stm BBC News: Water Birth Drowning Risk, 2002]
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