A Randomized Clinical Trial of the Efficacy of KID21 Point (Youmen) Acupressure on Nausea and Vomiting of Pregnancy

The effect of acupressure and massage on labor pain and birth satisfaction: a randomized controlled trial

OBJECTIVE

This randomized controlled trial was conducted to determine the effect of acupressure and massage used for the management of labor pain in the latent, active, and transition phases of the first stage of labor on labor pain and birth satisfaction.

METHODS

The study was conducted with 66 pregnant women who met the sampling criteria and participated voluntarily at a public hospital in Nicosia. The participants were randomly assigned to one of three groups: a massage group, an acupressure group, or a control group. Participants in the massage group received 10 min of sacral massage during contraction and 10 min of endorphin massage during rest, for a total of 30 min of massage per phase. Participants in the acupressure group received 3 min of acupressure to the LI 4 point at the same dilation intervals, when the contraction was most intense. The control group received no intervention. Pain perceived by the pregnant woman was evaluated with the Visual Comparison Scale (VAS) at the beginning and end of each phase. Postpartum, the Birth Satisfaction Scale was applied.

RESULTS

Massage application was found to be more effective in reducing labor pain than acupressure or the control group. Massage and acupressure did not negatively affect APGAR scores. The lowest oxytocin use was found in the massage group. The group with the highest birth satisfaction scores was also the massage group.

CONCLUSION

Massage application is more effective than acupressure application in reducing labor pain and increasing birth satisfaction.

Efficacy and safety of acupressure in nausea and vomiting during pregnancy: a systematic review and meta-analysis of randomized controlled trials

OBJECTIVE

The purpose of this study was to evaluate the efficacy and safety of acupressure on nausea and vomiting during pregnancy.

METHODS

PubMed, Embase, Springer, Web of Science, and the Cochrane Library were searched for all randomized controlled trials (RCT) of treating nausea and vomiting during pregnancy by acupressure from the inception date of database to July 31st, 2023. Study selection, data extraction, and risk of bias assessment were conducted independently by researchers. The methodological quality of included studies was evaluated by the Cochrane Collaboration's bias risk assessment tool, meta-analysis by Stata 17.0 software, and publication bias by Begg's test.

RESULTS

A total of 11 RCTs involving 1378 pregnant women were included in this review, which was assessed to be moderate quality. 10 RCTs involving 1298 pregnant women were assessed for the meta-analysis. The results revealed that acupressure showed significant difference on improvement in symptom score compared with sham acupressure (pooled MD, - 1.33; 95%CI [- 2.06, - 0.61]; P < 0.001) or control group (pooled MD, - 0.73; 95%CI [- 1.08, - 0.39]; P < 0.001), and incidence of effective rate compared with sham acupressure group (pooled RR, 1.78; 95%CI [1.03, 3.07]; P = 0.039). However, no statistical significance was found between acupressure and control group (pooled RR, 4.53; 95%CI [0.67, 30.48]; P = 0.120) on effective rate. On comparing acupressure with sham acupressure, there was no beneficial effect on preventing nausea and vomiting during pregnancy (pooled RR, 0.83; 95%CI [0.50, 1.38]; P = 0.476), shortening the duration of hospital stay (pooled MD, - 0.78; 95%CI [- 1.98, 0.41]; P = 0.199) and improving patient satisfaction (pooled RR, 1.36; 95%CI [0.47, 3.91]; P = 0.570). Begg's test did not reveal any publication bias. Only one RCT reported minimal acupressure-related adverse events.

CONCLUSION

Acupressure may have potential favorable or encouraging effect on treating nausea and vomiting during pregnancy, but strong supportive data are not yet available. Well-designed and large-scale RCTs should be conducted for assessing and confirming the efficacy and safety of acupressure in nausea and vomiting during pregnancy.

The efficacy and safety of complementary and alternative medicine in the treatment of nausea and vomiting during pregnancy: A systematic review and meta-analysis

Background

Complementary and alternative medicine (CAM) therapies are widely used for nausea and vomiting during pregnancy (NVP) due to the limitations of conventional medicine. However, their efficacy and safety remain controversial. Therefore, this meta-analysis was performed to assess the improvement of CAM therapy on NVP.

Methods

Randomized controlled trials (RCTs) were searched for where the trial group was CAM and the control group was a conventional medicine or a placebo for NVP. This was done via 8 databases, including PubMed, EMBASE, the Cochrane Library, Web of Science, China National Knowledge Infrastructure, Wanfang, SinoMed, and VIP, from inception to October 25, 2022. The Grades of Recommendation, Assessment, Development and Evaluation (GRADE) was used to assess the quality of evidence. The Stata 15.0 software was used to perform the meta-analysis.

Results

Thirty-three RCTs were included in this study. The acupuncture treatment was superior to conventional medicine at the effective rate [RR = 1.71, 95% CI (1.02, 2.86), P = 0.042; Low-quality evidence]. Ginger had more significant effects than conventional medicine at the Rhodes index [WMD = −0.52, 95% CI (−0.79, −0.24), P ≤ 0.001; Moderate-quality evidence] and it had the same effect as drugs to relieve vomiting [SMD = 0.30, 95% CI (−0.12, 0.73), P = 0.160; Low-quality evidence]. Compared with placebo, ginger had a higher effective rate [RR = 1.68, 95% CI (1.09, 2.57), P = 0.018; Low-quality evidence], and lower Visual analog scale (VAS) of Nausea [WMD = −1.21, 95% CI (−2.34, −0.08), P = 0.036; Low-quality evidence]. Ginger had the same antiemetic effect as placebo [WMD = 0.05, 95% CI (−0.23, 0.32), P = 0.743; Low-quality evidence]. Acupressure was superior to conventional medicine at the reduction of antiemetic drugs [SMD = −0.44, 95% CI (−0.77, −0.11), P = 0.008; Low-quality evidence], and at the effective rate [RR = 1.55, 95% CI (1.30, 1.86), P ≤ 0.001; Low-quality evidence]. Acupressure had the same effect as placebo at the effective rate [RR = 1.25, 95% CI (0.94, 1.65), P = 0.124; Low-quality evidence]. Overall, CAM therapy was safer than conventional medicine or a placebo.

Conclusion

The results showed that CAM therapies were able to alleviate NVP. However, due to the low quality of existing RCTs, more RCTs with large sample sizes are needed to validate this conclusion in the future.

[Expert consensus from the College of French Gynecologists and Obstetricians: Management of nausea and vomiting of pregnancy and hyperemesis gravidarum]

OBJECTIVE

To determine the management of patients with 1st trimester nausea and vomiting and hyperemesis gravidarum.

METHODS

A panel of experts participated in a formal consensus process, including focus groups and two Delphi rounds.

RESULTS

Hyperemesis gravidarum is distinguished from nausea and vomiting during pregnancy by weight loss≥5 % or signs of dehydration or a PUQE score≥7. Hospitalization is proposed when there is, at least, one of the following criteria: weight loss≥10%, one or more clinical signs of dehydration, PUQE (Pregnancy Unique Quantification of Emesis and nausea) score≥13, hypokalemia<3.0mmol/L, hyponatremia<120mmol/L, elevated serum creatinine>100μmol/L or resistance to treatment. Prenatal vitamins and iron supplementation should be stopped without stopping folic acid supplementation. Diet and lifestyle should be adjusted according to symptoms. Aromatherapy is not to be used. If the PUQE score is<6, even in the absence of proof of their benefit, ginger, pyridoxine (B6 vitamin), acupuncture or electrostimulation can be used, even in the absence of proof of benefit. It is proposed that drugs or combinations of drugs associated with the least severe and least frequent side effects should always be chosen for uses in 1st, 2nd or 3rd intention, taking into account the absence of superiority of a class over another to reduce the symptoms of nausea and vomiting of pregnancy and hypermesis gravidarum. To prevent Gayet Wernicke encephalopathy, Vitamin B1 must systematically be administered for hyperemesis gravidarum needing parenteral rehydration. Patients hospitalized for hyperemesis gravidarum should not be placed in isolation (put in the dark, confiscation of the mobile phone or ban on visits, etc.). Psychological support should be offered to all patients with hyperemesis gravidarum as well as information on patient' associations involved in supporting these women and their families. When returning home after hospitalization, care will be organized around a referring doctor.

CONCLUSION

This work should contribute to improving the care of women with hyperemesis gravidarum. However, given the paucity in number and quality of the literature, researchers must invest in the field of nausea and vomiting in pregnancy, and HG to identify strategies to improve the quality of life of women with nausea and vomiting in pregnancy or hyperemesis gravidarum.

Effects of Complementary Medicine on Nausea and Vomiting in Pregnancy: A Systematic Review

Nausea and vomiting of pregnancy (NVP) is a common problem for pregnant women. Researchers have recently paid special attention to complementary medicine methods for the treatment of NVP. Regarding the high prevalence of NVP as well as maternal and fetal adverse effects of chemical drugs, the present study, focusing on clinical trials carried out in Iran, was conducted to assess safety and efficacy of different nonpharmacological methods in relieving NVP. This systematic review focused on randomized controlled trials (RCTs) and assessed complementary medicine on NVP for which databases including MedLib, Magiran, Iran Medex, SID, PubMed, Scopus, and Google Scholar search engines from 2000 to 2015 were searched. Those articles that gained score 3 or higher, according to Jadad criteria, were recruited for the study. In this study, 31 clinical trials assessing NVP were conducted on Iranian pregnant women. After removing ten articles, 21 articles with scores 3 and higher, according to Jedad criteria, were assessed. Out of 21 papers, 10 papers were about ginger, one was about cardamom, one was about lemon, two were about peppermint aromatherapy, six were about pericardium 6 (P6) acupressure, and one article about KID21 acupressure. Most studies have demonstrated a positive effect on reducing NVP; however, no adverse effect was reported. According to the results of this review, the majority of methods employed were effective in reducing the incidence of NVP, among which ginger and P6 acupressure can be recommended with more reliability.

Treatments for hyperemesis gravidarum and nausea and vomiting in pregnancy: a systematic review and economic assessment

BACKGROUND

Nausea and vomiting in pregnancy (NVP) affects up to 85% of all women during pregnancy, but for the majority self-management suffices. For the remainder, symptoms are more severe and the most severe form of NVP - hyperemesis gravidarum (HG) - affects 0.3-1.0% of pregnant women. There is no widely accepted point at which NVP becomes HG.

OBJECTIVES

This study aimed to determine the relative clinical effectiveness and cost-effectiveness of treatments for NVP and HG.

DATA SOURCES

MEDLINE, EMBASE, Cumulative Index to Nursing and Allied Health Literature, Cochrane Central Register of Controlled Trials, PsycINFO, Commonwealth Agricultural Bureaux (CAB) Abstracts, Latin American and Caribbean Health Sciences Literature, Allied and Complementary Medicine Database, British Nursing Index, Science Citation Index, Social Sciences Citation Index, Scopus, Conference Proceedings Index, NHS Economic Evaluation Database, Health Economic Evaluations Database, China National Knowledge Infrastructure, Cochrane Database of Systematic Reviews and Database of Abstracts of Reviews of Effects were searched from inception to September 2014. References from studies and literature reviews identified were also examined. Obstetric Medicine was hand-searched, as were websites of relevant organisations. Costs came from NHS sources.

REVIEW METHODS

A systematic review of randomised and non-randomised controlled trials (RCTs) for effectiveness, and population-based case series for adverse events and fetal outcomes. Treatments: vitamins B6 and B12, ginger, acupressure/acupuncture, hypnotherapy, antiemetics, dopamine antagonists, 5-hydroxytryptamine receptor antagonists, intravenous (i.v.) fluids, corticosteroids, enteral and parenteral feeding or other novel treatment. Two reviewers extracted data and quality assessed studies. Results were narratively synthesised; planned meta-analysis was not possible due to heterogeneity and incomplete reporting. A simple economic evaluation considered the implied values of treatments.

RESULTS

Seventy-three studies (75 reports) met the inclusion criteria. For RCTs, 33 and 11 studies had a low and high risk of bias respectively. For the remainder (n = 20) it was unclear. The non-randomised studies (n = 9) were low quality. There were 33 separate comparators. The most common were acupressure versus placebo (n = 12); steroid versus usual treatment (n = 7); ginger versus placebo (n = 6); ginger versus vitamin B6 (n = 6); and vitamin B6 versus placebo (n = 4). There was evidence that ginger, antihistamines, metoclopramide (mild disease) and vitamin B6 (mild to severe disease) are better than placebo. Diclectin^® [Duchesnay Inc.; doxylamine succinate (10 mg) plus pyridoxine hydrochloride (10 mg) slow release tablet] is more effective than placebo and ondansetron is more effective at reducing nausea than pyridoxine plus doxylamine. Diclectin before symptoms of NVP begin for women at high risk of severe NVP recurrence reduces risk of moderate/severe NVP compared with taking Diclectin once symptoms begin. Promethazine is as, and ondansetron is more, effective than metoclopramide for severe NVP/HG. I.v. fluids help correct dehydration and improve symptoms. Dextrose saline may be more effective at reducing nausea than normal saline. Transdermal clonidine patches may be effective for severe HG. Enteral feeding is effective but extreme method treatment for very severe symptoms. Day case management for moderate/severe symptoms is feasible, acceptable and as effective as inpatient care. For all other interventions and comparisons, evidence is unclear. The economic analysis was limited by lack of effectiveness data, but comparison of costs between treatments highlights the implications of different choices.

LIMITATIONS

The main limitations were the quantity and quality of the data available.

CONCLUSION

There was evidence of some improvement in symptoms for some treatments, but these data may not be transferable across disease severities. Methodologically sound and larger trials of the main therapies considered within the UK NHS are needed.

STUDY REGISTRATION

This study is registered as PROSPERO CRD42013006642.

FUNDING

The National Institute for Health Research Health Technology Assessment programme.

Comparison Between Effects of Acupuncture and Metoclopramide on Postoperative Nausea and Vomiting after Gynaecological Laparoscopy: A Randomized Controlled Trial

Background

Gynaecological laparoscopy one ofthe most common operations thatis accompanied by postoperative nausea and vomiting (PONV). A non-pharmacological method of preventing PONV is acupuncture therapy.

Objectives

This study is conducted to compare the effects of acupuncture and metoclopramide on post-operative nausea and vomiting (PONV) after gynaecological laparoscopy.

Methods

In this double-blind, randomized, clinical trial study,122female, ASA I, aged 19 - 46, who had been referred to the Imam Khomini Hospital (Ahvaz, Iran) and were candidates for gynaecological laparoscopy were enrolled. Eligible patients were randomly allocated into three groups group I (acupuncture; n = 40), group II (metoclopramide 0.2 mg/kg IV; n = 41), and group III (control; n = 41). In group I, acupuncture was done by inserting a special needle at point P6 in front of the elbow immediately after induction of anaesthesia and removing it before extubation and transfer of the patient to the recovery room. The occurrences of nausea and vomiting during the period of stay in the recovery room (one and two hours after surgery) were recorded through questions or clinical observation. Statistical analysis was conducted using SPSS V. 19, descriptive statistics, and the Chi-square test.

Results

The acupuncture group (11.1%) showed a significant decrease in the incidence of nausea one hour after surgery compared to the metoclopramide group (33.3%) (P = 0.02), but there was no significant difference between the acupuncture and metoclopramide groups in terms of postoperative vomiting (POV) incidence one and two hours after surgery. Incidence of PONV in the acupuncture group (2.7%) was statistically significantly lower than that in the control group (28.5%), two hours after surgery (P < 0.01).

Conclusions

Acupuncture is better for controlling nausea after laparoscopic surgery, compared to metoclopramide. Acupuncture is an effective method for reduction of PONV in gynaecological laparoscopy.

Contemporary acupressure therapy: Adroit cure for painless recovery of therapeutic ailments

Since time immemorial, complementary and alternative medicines (CAM) have played a significant role in human health care. CAM is known to have a strong reputation and reliability within every culture to provide basic health care treatment for patients. CAM acts as a better therapeutic option in human being for treating various diseases and improving quality of life with apt consideration to the economic aspects. Acupressure, one of the known CAM, originated in ancient China is based on the principal of acupoints activation across the meridians which correct the imbalance between Qi. Activation of specific points on the meridians is known to facilitate reduction of pain at the local sites. It also reduces the pain from other body parts. This review outlines various types, devices and mechanisms involved in the acupressure treatment.

Using acupressure to minimize discomforts during pregnancy

OBJECTIVE

To describe responses issued by pregnant women, and the improvement of the gravidic discomforts after the use of the acupressure technique.

METHOD

Qualitative and descriptive study conducted with 15 pregnant women between November 2013 and February 2014 in a Basic Health Unit in Natal, RN, Brazil. The data were collected through unstructured interviews and depositions that were then transcribed and treated according to Minayo's operative proposal, carefully read, compared and organized into two groups.

RESULTS

The categories that resulted were: Positive effects of acupressure, and the recommended use of acupressure. According to pregnant women, the discomforts of pregnancy cramps, fatigue in the legs, lower back pain and headaches decreased with the use of acupressure.

CONCLUSIONS

Based on the results, acupressure should be introduced by the nurse in pre-natal care as a therapeutic resource for the pregnant woman's well-being.

Effect of acustimulation on nausea and vomiting and on hyperemesis in pregnancy: a systematic review of Western and Chinese literature

Background

Nausea and vomiting in pregnancy (NVP) and hyperemesis gravidarum (HG) have a significant impact on quality of life. Medication to relieve symptoms of NVP and HG are available but pregnant women and their caregivers have been concerned about the teratogenic effect, side effects and poor efficacy. The aim of this review was to investigate if there is any clinical evidence for the efficacy of acustimulation in the treatment of NVP or HG.

Methods

A systematic review of randomized controlled trials (RCTs), including both English and Chinese databases was conducted to assess the efficacy of various techniques of acustimulation for NVP and HG. The methodological quality of the studies was assessed using the Cochrane’s risks of bias tool. Revised STRICTA (2010) criteria were used to appraise acustimulation procedures. Pooled relative risks (RRp) and standard mean deviations (SMD) with 95 % confidence intervals (CI) were calculated from the data provided by the investigators of the original trials.

Results

Twenty-nine trials including 3519 patients met the inclusion criteria. Twenty trials could be included in statistical pooling. The overall effect of different acustimulation techniques shows a significant reduction for the combined outcome for NVP or HG in pregnancy as a dichotomous variable (RRp 1.73, 95 % CI 1.43 to 2.08). Studies with continuous outcome measures for nausea, vomiting and the combined outcome did not show any evidence for relieving symptoms of NVP and HG (SMD −0.12, 95 % CI −0.35 to 0.12).

Conclusions

Although there is some evidence for an effect of acustimulation on nausea and vomiting or hyperemesis in pregnancy, results are not conclusive. Future clinical trials with a rigorous design and large sample sizes should be conducted to evaluate the efficacy and safety of these interventions for NVP and HG.

Interventions for nausea and vomiting in early pregnancy

BACKGROUND

Nausea, retching and vomiting are very commonly experienced by women in early pregnancy. There are considerable physical, social and psychological effects on women who experience these symptoms. This is an update of a review of interventions for nausea and vomiting in early pregnancy last published in 2014.

OBJECTIVES

To assess the effectiveness and safety of all interventions for nausea, vomiting and retching in early pregnancy, up to 20 weeks' gestation.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register, the Cochrane Complementary Medicine Field's Trials Register (19 January 2015) and reference lists of retrieved studies.

SELECTION CRITERIA

All randomised controlled trials of any intervention for nausea, vomiting and retching in early pregnancy. We excluded trials of interventions for hyperemesis gravidarum, which are covered by another Cochrane review. We also excluded quasi-randomised trials and trials using a cross-over design.

DATA COLLECTION AND ANALYSIS

Four review authors, in pairs, reviewed the eligibility of trials and independently evaluated the risk of bias and extracted the data for included trials.

MAIN RESULTS

Forty-one trials involving 5449 women, met the inclusion criteria. These trials covered many interventions, including acupressure, acustimulation, acupuncture, ginger, chamomile, lemon oil, mint oil, vitamin B6 and several antiemetic drugs. There were no included studies of dietary and other lifestyle interventions. Evidence regarding the effectiveness of P6 acupressure, auricular (ear) acupressure and acustimulation of the P6 point was limited. Acupuncture (P6 or traditional) showed no significant benefit to women in pregnancy. The use of ginger products may be helpful to women, but the evidence of effectiveness was limited and not consistent, though three recent studies support ginger over placebo. There was only limited evidence from trials to support the use of pharmacological agents including vitamin B6, Doxylamine-pyridoxoine and other anti-emetic drugs to relieve mild or moderate nausea and vomiting. There was little information on maternal and fetal adverse outcomes and on psychological, social or economic outcomes.We were unable to pool findings from studies for most outcomes due to heterogeneity in study participants, interventions, comparison groups, and outcomes measured or reported. The methodological quality of the included studies was mixed. Risk of bias was low related to performance bias, detection bias and attrition bias for most studies. Selection bias risk was unclear for many studies and almost half of the studies did not fully or clearly report all pre-specified outcomes.

AUTHORS' CONCLUSIONS

Given the high prevalence of nausea and vomiting in early pregnancy, women and health professionals need clear guidance about effective and safe interventions, based on systematically reviewed evidence. There is a lack of high-quality evidence to support any particular intervention. This is not the same as saying that the interventions studied are ineffective, but that there is insufficient strong evidence for any one intervention. The difficulties in interpreting and pooling the results of the studies included in this review highlight the need for specific, consistent and clearly justified outcomes and approaches to measurement in research studies.

Interventions for nausea and vomiting in early pregnancy

BACKGROUND

Nausea, retching and vomiting are very commonly experienced by women in early pregnancy. There are considerable physical, social and psychological effects on women who experience these symptoms. This is an update of a review of interventions for nausea and vomiting in early pregnancy last published in 2014.

OBJECTIVES

To assess the effectiveness and safety of all interventions for nausea, vomiting and retching in early pregnancy, up to 20 weeks' gestation.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register, the Cochrane Complementary Medicine Field's Trials Register (19 January 2015) and reference lists of retrieved studies.

SELECTION CRITERIA

All randomised controlled trials of any intervention for nausea, vomiting and retching in early pregnancy. We excluded trials of interventions for hyperemesis gravidarum, which are covered by another Cochrane review. We also excluded quasi-randomised trials and trials using a cross-over design.

DATA COLLECTION AND ANALYSIS

Four review authors, in pairs, reviewed the eligibility of trials and independently evaluated the risk of bias and extracted the data for included trials.

MAIN RESULTS

Forty-one trials involving 5449 women, met the inclusion criteria. These trials covered many interventions, including acupressure, acustimulation, acupuncture, ginger, chamomile, lemon oil, mint oil, vitamin B6 and several antiemetic drugs. There were no included studies of dietary and other lifestyle interventions. Evidence regarding the effectiveness of P6 acupressure, auricular (ear) acupressure and acustimulation of the P6 point was limited. Acupuncture (P6 or traditional) showed no significant benefit to women in pregnancy. The use of ginger products may be helpful to women, but the evidence of effectiveness was limited and not consistent, though three recent studies support ginger over placebo. There was only limited evidence from trials to support the use of pharmacological agents including vitamin B6, Doxylamine-pyridoxoine and other anti-emetic drugs to relieve mild or moderate nausea and vomiting. There was little information on maternal and fetal adverse outcomes and on psychological, social or economic outcomes.We were unable to pool findings from studies for most outcomes due to heterogeneity in study participants, interventions, comparison groups, and outcomes measured or reported. The methodological quality of the included studies was mixed. Risk of bias was low related to performance bias, detection bias and attrition bias for most studies. Selection bias risk was unclear for many studies and almost half of the studies did not fully or clearly report all pre-specified outcomes.

AUTHORS' CONCLUSIONS

Given the high prevalence of nausea and vomiting in early pregnancy, women and health professionals need clear guidance about effective and safe interventions, based on systematically reviewed evidence. There is a lack of high-quality evidence to support any particular intervention. This is not the same as saying that the interventions studied are ineffective, but that there is insufficient strong evidence for any one intervention. The difficulties in interpreting and pooling the results of the studies included in this review highlight the need for specific, consistent and clearly justified outcomes and approaches to measurement in research studies.

Sham Acupressure Controls Used in Randomized Controlled Trials: A Systematic Review and Critique

OBJECTIVES

To explore the commonly utilized sham acupressure procedures in existing acupressure trials, and to assess whether different types of sham interventions yield different therapeutic outcomes, and, as far as possible, to identify directions for the future development of an adequate sham acupressure method.

METHODS

Randomized controlled trials comparing true acupressure with sham interventions were included. Thirteen electronic databases were adopted to locate relevant studies from inception to July 3, 2014. Meanwhile, eight Chinese journals on complementary and alternative medicine were manually searched to locate eligible articles. In addition, eligible studies listed in the reference lists of the included papers and other related systematic reviews on acupressure were also screened to further search any potentially eligible trials. Methodological quality of the included studies was evaluated using the risk of bias assessment tool developed by the Cochrane Back Review Group. Descriptive analysis was adopted to summarize the therapeutic outcomes.

RESULTS

Sixty-six studies with 7265 participants were included. Methodological quality of the included trials was generally satisfactory. Six types of sham acupressure approaches were identified and "non-acupoint" stimulation was the most frequently utilized sham point while an acupressure device was the most commonly used approach for administering sham treatments. Acupressure therapy was a beneficial approach in managing a variety of health problems and the therapeutic effect was found to be more effective in the true acupressure groups than that in the sham comparative groups. No clear association could be identified between different sham acupressure modalities and the reported treatment outcomes.

CONCLUSIONS

A great diversity of sham acupressure controls have been used in clinical practice and research. A solid conclusion whether different sham alternatives are related to different treatment outcomes cannot be derived because of significant clinical heterogeneity among the analyzed trials. Non-acupoints are generally recommended but the definite locations should be identified with caution. For studies using single sham acupoints on hands or legs, it is suggested to apply identical acupressure devices on the same acupoint as in the active intervention without any stimulation. While for studies on pain, stimulation of sham acupoints should be avoided.

Nausea and vomiting in early pregnancy

INTRODUCTION

More than half of pregnant women suffer from nausea and vomiting, which typically begins by the fourth week and disappears by the 16th week of pregnancy. The cause of nausea and vomiting in pregnancy is unknown, but may be due to the rise in human chorionic gonadotrophin concentration. In 1 in 200 women, the condition progresses to hyperemesis gravidarum, which is characterised by prolonged and severe nausea and vomiting, dehydration, and weight loss.

METHODS AND OUTCOMES

We conducted a systematic review and aimed to answer the following clinical questions: What are the effects of treatment for nausea and vomiting in early pregnancy? What are the effects of treatments for hyperemesis gravidarum? We searched: Medline, Embase, The Cochrane Library, and other important databases up to September 2013 (Clinical Evidence reviews are updated periodically; please check our website for the most up-to-date version of this review). We included harms alerts from relevant organisations such as the US Food and Drug Administration (FDA) and the UK Medicines and Healthcare products Regulatory Agency (MHRA).

RESULTS

We found 32 studies that met our inclusion criteria. We performed a GRADE evaluation of the quality of evidence for interventions.

CONCLUSIONS

In this systematic review we present information relating to the effectiveness and safety of the following interventions: acupressure; acupuncture; corticosteroids; ginger; metoclopramide; ondansetron; prochlorperazine; promethazine; and pyridoxine (vitamin B6).

Acupressure and ginger to relieve nausea and vomiting in pregnancy: a randomized study

BACKGROUND

Nausea and vomiting of pregnancy (NVP) is the most common medical condition of pregnancy, affecting up to 85% of expecting mothers. NVP can have serious adverse effects on the quality of a woman's life, social, and domestic functioning, and her general well-being. Therefore, it is very important to treat this condition.

OBJECTIVES

The effectiveness of ginger and acupressure in the treatment of NVP was compared in the present study.

PATIENTS AND METHODS

159 eligible pregnant women with symptoms of mild to moderate nausea and/or vomiting before 16 weeks gestational age participated in a 7-day clinical trial. They were divided randomly into three groups: the acupressure, ginger, and control. Participants did not receive any intervention for three days and interventions were performed for the women in acupressure and ginger groups for four days. No intervention was performed for the control group. Data was collected by self-recorded symptoms according to the Rhodes index. Data was analyzed by ANOVA, Kruskal-Wallis, Chi-square, and Fisher exact tests for quantitative and qualitative variables.

RESULTS

There were no statistical differences in the baseline demographics between the three groups. ANOVA test showed that there were significantly differences in mean difference Rhodes index scores (vomiting, nausea, retching and total score) in the three groups (P < 0.001).

CONCLUSIONS

Ginger is more effective than acupressure to relieve mild to moderate nausea and vomiting in symptomatic pregnant women in less than 16 weeks of gestational age.