Medical versus surgical treatment of first trimester spontaneous abortion: A cost-minimization analysis

Background

Traditionally the gold-standard technique for the treatment of spontaneous abortion has been uterine evacuation by aspiration curettage. However, many studies have proposed medical treatment with misoprostol as an alternative to the conventional surgical treatment. The aim of this study was to apply cost minimization methods to compare the cost and effectiveness of the use of vaginal misoprostol as a medical treatment for first trimester spontaneous abortion with those of evacuation curettage as a surgical treatment.

Methodology/Principal findings

We present a longitudinal, prospective and quasi-experimental research study including a total of 547 patients diagnosed with first-trimester spontaneous abortion, in the period from January 2013 to December 2015. Patients were offered medical treatment with 800 mg vaginal misoprostol or evacuation curettage. Patients treated with misoprostol were followed-up at 7 days and a transvaginal ultrasound was performed to confirm the success of the treatment. If it failed, a second dose of 800 mg of vaginal misoprostol was prescribed and a new control ultrasound was performed. In case of failure of medical treatment after the second dose of misoprostol, evacuation curettage was indicated. The effectiveness of each of the treatment options was calculated using a decision tree. The cost minimization study was carried out by weighting each cost according to the effectiveness of each branch of the treatment. Of the 547 patients who participated in the study, 348 (64%) chose medical treatment and 199 (36%) chose surgical treatment. The overall effectiveness of medical treatment was 81% (283/348) and surgical treatment of 100%. The estimated final cost for medical treatment was € 461.92 compared to € 2038.72 for surgical treatment, which represents an estimated average saving per patient of € 1576.8.

Conclusions/Significance

Medical treatment with misoprostol is a cheaper alternative to surgery: in the Spanish Public Healthcare System, it is five times more inexpensive than curettage. Given its success rates higher than 80%, mild side effects, controllable with additional medication and the high degree of overall satisfaction, it should be prioritized over the evacuation curettage in patients who meet the treatment criteria.

[Cost of medical treatment with methotrexate for ectopic pregnancy. Study comparing medical treatment versus laparoscopy. Experience of Aziza Othmana Hospital]

BACKGROUND

The ectopic pregnancy can be treated surgically (conservative or radical) or medically. Currently, the choice between medical and surgical treatment is a critical issue. One of the parameters of this choice is the total cost of management.

AIM

To compare the cost of the management of ectopic pregnancy by medical treatment (methotrexate, MTX) and coeliochirurgicaux.

METHODS

This is a prospective, comparative, nonrandomized,unicentric study, on 39 patients who have ectopic pregnancies treated with MTX versus 16 patients treated by laparoscopic surgery with conservative treatment. This study was collected at the service of Obstetrics and Gynecology Reproductive Medicine Aziza Othmana Hospital (Tunis) for a period of two years.

RESULTS

The average cost of hospital stay per patient was 549.38 dt for the MTX group against 268.39 dt for laparoscopic surgery group (p <0.001). There was no statistically significant difference between the two groups. In terms of overall absenteeism, there is no statistically significant difference (16.43 vs 17.5 days).

CONCLUSION

The initial treatment with MTX costs more cost than the conservative laparoscopic treatment and this is mainly due to the long period of hospitalization.

Cost-effectiveness analysis of unsafe abortion and alternative first-trimester pregnancy termination strategies in Nigeria and Ghana

To explore the policy implications of increasing access to safe abortion in Nigeria and Ghana, we developed a computer-based decision analytic model which simulates induced abortion and its potential complications in a cohort of women, and comparatively assessed the cost-effectiveness of unsafe abortion and three first-trimester abortion modalities: hospital-based dilatation and curettage, hospital- and clinic-based manual vacuum aspiration (MVA), and medical abortion using misoprostol (MA). Assuming all modalities are equally available, clinic-based MVA is the most cost-effective option in Nigeria. If clinic-based MVA is not available, MA is the next best strategy. Conversely, in Ghana, MA is the most cost-effective strategy, followed by clinic-based MVA if MA is not available. From a real world policy perspective, increasing access to safe abortion in favor over unsafe abortion is the single most important factor in saving lives and societal costs, and is more influential than the actual choice of safe abortion modality.

Misoprostol in resource poor countries

Is cheap and effective, yet its availability remains restricted

Cost-effectiveness of dilation and evacuation versus the induction of labor for second-trimester pregnancy termination

OBJECTIVE

The purpose of this study was to compare the cost-effectiveness of dilation and evacuation versus misoprostol induction of labor for second-trimester termination.

STUDY DESIGN

Using decision analysis, we compared the cost-effectiveness of dilation and evacuation and misoprostol induction of labor for second-trimester termination. Complications for dilation and evacuation and induction of labor included repeat dilation and curettage, cervical laceration repair, hospital admission, laparotomy, hysterectomy, and maternal death. Induction of labor complications also included failed induction of labor. The primary outcome was cost per quality-adjusted life year. Sensitivity analyses were performed for all relevant variables.

RESULTS

Dilation and evacuation was less costly and more effective than misoprostol induction of labor for second-trimester termination with baseline estimates. In 1-way sensitivity analysis, the model was robust to all variation in probabilities and costs. In Monte Carlo simulation with 1000 trials and a cost-effectiveness threshold of $50,000/quality-adjusted life year, dilation and evacuation was the preferred approach in 97.9% of trials.

CONCLUSION

Dilation and evacuation is less expensive and more effective than misoprostol induction of labor for second-trimester termination.

The true cost differential between mifepristone and misoprostol and misoprostol-alone regimens for medical abortion

Our objective was to evaluate relative differences in direct and total (direct and indirect) costs for medical abortion regimens using mifepristone and misoprostol or misoprostol alone. We created formulas to evaluate relative differences in costs in the United States, Chennai (Madras), India, and a hypothetical developing country based on published protocols and efficacy data. Follow-up visits and suction aspiration procedures in the United States were evaluated over a range of costs. American indirect costs were estimated using earning data. Indirect costs in India and the hypothetical developing country were based on mifepristone cost differences between the United States and India. Although mifepristone costs US dollar 83.33 for every 200-mg tablet in the United States, the actual excess cost of using a mifepristone regimen, as compared with a misoprostol-alone regimen, is only US dollar 22 to US dollar 32. The actual cost of a mifepristone regimen is lower than that of a misoprostol-alone regimen in India. In a hypothetical developing country, a mifepristone regimen is likely to be less expensive than regimens using misoprostol alone. Because of the higher efficacy of medical abortion regimens using mifepristone and misoprostol and the need for fewer follow-up evaluations, such regimens are less expensive or only minimally more expensive than those using misoprostol alone.

Misoprostol and declining abortion-related morbidity in Santo Domingo, Dominican Republic: a temporal association

OBJECTIVE

To validate anecdotal reports that abortion-related complications decreased in the Dominican Republic after the introduction of misoprostol into the country.

DESIGN

Retrospective records reviews and cross-sectional surveys, interviews and focus groups.

SETTING

Family planning clinics, pharmacies, door-to-door canvassing and a tertiary care maternity hospital in Santo Domingo, Dominican Republic.

POPULATION

Women of reproductive age in Santo Domingo, Dominican Republic.

METHODS

Qualitative and quantitative methods were used. Individual interviews and focus groups of reproductive health professionals, non-governmental organisation leaders and women's group leaders (n= 50) were conducted to discover the role of misoprostol in the Dominican Republic. Local women (n= 157) were surveyed to determine their knowledge of misoprostol as an abortifacient and mystery client visits were made to 80 pharmacies in order to purchase misoprostol without a prescription. Sales data were obtained that documented when misoprostol was introduced to the Dominican Republic pharmacies. Hospital admissions for abortions from the prior eight years were reviewed and hospital emergency room consultation ledgers of 31,190 visits for the period 1994-2001 were reviewed for abortion complications.

MAIN OUTCOME MEASURES

Frequencies of maternal morbidities and knowledge of misoprostol.

RESULTS

Mystery clients purchased misoprostol without a prescription in nearly 64% of pharmacies; staff provided little additional information or counselling. Reliable sales data documented the introduction of misoprostol in 1986. Abortion complications decreased from 11.7% of abortions in 1986 to 1.7% in 2001. The majority of professionals interviewed felt that knowledge of these findings should be made public.

CONCLUSIONS

The data were of too poor quality to validate the verbal reports reliably, but misoprostol appears to have been widely used over a period when abortion-related morbidity fell. It remains plausible that the use of misoprostol contributed to the reduction.

Expectant, medical or surgical treatment for spontaneous abortion in first trimester of pregnancy: a cost analysis

BACKGROUND

Misoprostol and expectant care have been shown to be acceptable alternatives to routine surgical evacuation for treatment of spontaneous abortion in the first trimester of pregnancy. The objective of this study was to analyse the cost of expectant care, misoprostol therapy and surgical evacuation.

METHODS

A decision tree was designed to simulate the clinical outcome and health care resource utilization of surgical evacuation, misoprostol and expectant care for patients presenting with uncomplicated spontaneous abortion in the first trimester of pregnancy. Clinical inputs were estimated from literature and the cost analysis was conducted from the perspective of a public health care provider in Hong Kong.

RESULTS

The base-case analysis showed that the misoprostol group (1000 US dollars per patient) was the least costly alternative, followed by the expectant care (1172 US dollars per patient) and surgical evacuation (2007 US dollars per patient). Rates of complete abortion using misoprostol and expectant care were identified as influential factors. Monte Carlo simulation (10000 cohorts) showed that the misoprostol and the expectant care groups were less costly than the surgical evacuation group 100 and 88% of the time. The misoprostol group was less costly than the expectant group 100% of the time.

CONCLUSIONS

Misoprostol therapy appears to be the least costly approach for treatment of uncomplicated spontaneous abortion.

Cost-effectiveness of presumptively medically treating women at risk for ectopic pregnancy compared with first performing a dilatation and curettage

OBJECTIVE

To compare the cost and complication rate of two alternative strategies for the diagnosis and medical management of ectopic pregnancy when ultrasound is nondiagnostic.

DESIGN

A decision tree was constructed to compare [1] dilatation and curettage (D&C) followed by treatment of all ectopic pregnancies with methotrexate versus [2] empiric treatment of all patients with possible ectopic pregnancies with methotrexate without D&C.

SETTING

University setting.

PATIENT(S)

Ten thousand hypothetical women with nonviable pregnancies and a known incidence of ectopic pregnancy were entered into a computer model.

MAIN OUTCOME MEASURE(S)

The two approaches were compared with respect to the number of missed ectopic pregnancies, complications, procedures performed, admissions to the hospital, and cost.

RESULT(S)

The D&C group had 1% more failed managements of ectopic pregnancies and 13.4% fewer patients with a miscarriage undergo a second treatment for resolution. The D&C group had 13.7% fewer complications including 6.3% fewer hospitalizations. D&C costs $173 to $223 more than empiric use of methotrexate per patient.

CONCLUSION(S)

Empirically treating women at risk for ectopic pregnancy with methotrexate does not reduce complications or save money. In the absence of such savings, the desire to make an accurate and definitive diagnosis, allowing objective prognosis on future fertility and risk of repeat ectopic pregnancy, supports the need to distinguish a miscarriage from ectopic pregnancy before treatment with methotrexate.

Economic evaluation of misoprostol in the treatment of early pregnancy failure compared to curettage after an expectant management

BACKGROUND

The increased pressure on health care expenses implies that physicians should consider economic aspects as part of the clinical decision-making process. Direct and indirect costs of a strategy starting with misoprostol in treatment of early pregnancy failure as compared to curettage is therefore performed.

METHODS

We performed a cost-minimization analysis alongside a multicentre randomized trial. Clinical data and data on the use of medical resources were obtained from a randomized trial comparing misoprostol and curettage, which had shown that misoprostol reduced the need for curettage in 53%. In a sensitivity analysis the percentage of women who needed curettage after misoprostol varied between 25 and 90%.

RESULTS

Direct costs per case were significantly lower in the misoprostol group (mean 433) than in the curettage group (mean 683) (mean difference 250, 95% CI 184 to 316, P < 0.001). These significant differences existed under a wide range of alternative assumptions about unit costs. The differences in direct cost in favour of misoprostol were large for women who had complete evacuation after initial misoprostol treatment as compared to those who needed additional curettage after failed misoprostol. Mean indirect costs were equal for both groups (misoprostol mean 486; curettage mean 428; mean difference 60, 95% CI -61 to 179, P = 0.51). The mean total costs for a strategy starting with misoprostol was 915 versus 1107 for curettage, with a mean difference between both groups of 192 (95% CI 33 to 351, P = 0.04). An increase of the complete evacuation rates for initial misoprostol therapy to 90% in the sensitivity analysis increased the cost difference between misoprostol and curettage to 550.

CONCLUSION

The use of misoprostol for early pregnancy failure after failed expectant management is less costly than curettage.

A comparative study of vaginal misoprostol and intravenous oxytocin for induction of labour in women with intra uterine fetal death in Mulago Hospital, Uganda

BACKGROUND

Intrauterine fetal death is a major problem in obstetrics particularly in developing countries such as Uganda. Induction of labour in cases of fetal death using the available method of oxytocin is often difficult, expensive and frustrating.

OBJECTIVES

To compare the effectiveness of vaginal misoprostol and intravenous oxytocin in induction of labour in women with intrauterine fetal death.

METHODS

One hundred and twenty mothers were allocated in a randomised controlled way to one of the two induction groups. Oxytocin infusion was titrated based on patient response. The starting dose was 50 mcg (1/4 tablet) in misoprostol group and the dose was doubled every six hours till effective contractions were achieved. The two groups were compared for induction to delivery intervals, costs of the drugs and their safety during induction.

RESULTS

The success rate within 48 hours of induction was 100% in the misoprostol group and 96.7% in oxytocin group. The mean induction to delivery time was significantly longer in the oxytocin group compared with the misoprostol group (23.3 versus 12.4 hours; p= 0.004). In the gestational age before 28 weeks, the induction to delivery interval in oxytocin group, was more than twice that used in misoprostol. However beyond 28 weeks, there was no significant difference. Women with intact membranes had induction to delivery interval of 27.9 hours in the oxytocin group and 14.7 hours in the misoprostol group (p=0.002). When the membranes were ruptured, the values were 10.5 and 8.5 hours respectively (p=0.6). The induction to delivery time in cases with Bishop's score < 6 was 29.8 hours in the oxytocin group and 15.9 hours in misoprostol group (p=0.001). The corresponding values for Bishop's scores > 6 were 10 and 7.9 hours respectively (p=0.6). The majority of patients in misoprostol group (62%), required less than one tablet for successful induction. Misoprostol was cheaper (0.65 US dollars than oxytocin (7.86 US dollars) Retained placenta occurred in only 3.3% of the patients in the misoprostol group. There were no cases of ruptured uterus in both groups.

CONCLUSION

Intravaginal misoprostol is more effective and cheaper than intravenous oxytocin for inducing labour in patients with intrauterine fetal death.

An economic evaluation of single dose systemic methotrexate and laparoscopic surgery for the treatment of unruptured ectopic pregnancy

OBJECTIVE

To compare the direct and indirect costs of single dose systemic methotrexate with laparoscopic surgery for the treatment of unruptured ectopic pregnancy.

DESIGN

A cost minimisation study undertaken alongside a randomised trial.

SETTING

Departments of Obstetrics and Gynaecology in three hospitals in Auckland, New Zealand.

PARTICIPANTS

Sixty-two women with an ectopic pregnancy randomised to treatment with either a single dose of methotrexate (50 mg/m2) or laparoscopic surgery.

MAIN OUTCOME MEASURES

Direct and indirect costs based on the results of the randomised trial.

RESULTS

Direct costs per case were significantly lower in the methotrexate group (mean $NZ 1,470) than in the laparoscopy group (mean $NZ 3,083) with a mean difference of $NZ 1,613 (95% CI $NZ 1,166 - $NZ 2,061). These significant differences existed under a wide range of alternative assumptions about unit costs. The difference in direct costs in favour of methotrexate was greatest for women presenting with low pretreatment serum beta-hCG concentrations. Mean indirect costs were also significantly lower in the methotrexate group (mean $NZ 1,141) than in the laparoscopy group (mean $NZ 1899) with a mean difference of $NZ 758 (95% CI $NZ 277 - $NZ 1,240). For women presenting with pretreatment serum beta-hCG concentrations of over 1,500 IU/ L this difference in indirect costs is lost due to the prolonged follow up required and a higher rate of surgical intervention in women receiving methotrexate.

CONCLUSION

This economic evaluation shows that treating suitable women with an ectopic pregnancy using systemic methotrexate therapy results in a significant reduction in direct costs. The indirect costs borne by the woman and her carers are only likely to be reduced in women with pretreatment serum beta-hCG concentrations under 1,500 IU/L.

Vaginal misoprostol in the management of first-trimester missed abortions

OBJECTIVE

To evaluate the efficacy of a regimen of vaginal misoprostol in causing the complete expulsion of first-trimester missed abortions, or alternatively dilating the cervix for surgical evacuation.

METHOD

Seventy-four women with a transvaginal ultrasound diagnosis of a first-trimester missed abortion and no more than slight vaginal bleeding were consecutively enrolled. Misoprostol (600 microg) was administered vaginally and repeated 4 h later if necessary. Surgical evacuation was performed when complete expulsion was not documented on the ultrasound 10-12 h after treatment.

RESULTS

Complete medical evacuation occurred in 42 women (56.8%), 11 (14.9%) of which required only one dose. Seventy women (94.6%) experienced abdominal pain, 73 (98.6%) vaginal bleeding, 10 (13.5%) nausea, 4 (5.4%) vomiting, 5 (6.8%) diarrhea, and 4 (5.4%) transient hyperthermia. There was one case of heavy vaginal bleeding requiring emergency surgical evacuation, and one re-admission for incomplete abortion at 30 days. All but 4 (5.4%) women had permeable cervices at the time of surgery.

CONCLUSION

The described regimen of vaginal misoprostol is safe and reasonably effective in inducing complete evacuation in missed abortions. When this does not occur, it almost always provides adequate cervical dilatation for surgery.

Cost-effectiveness of single-dose methotrexate compared with laparoscopic treatment of ectopic pregnancy

OBJECTIVE

To evaluate the cost-effectiveness of treatment with intramuscular (IM) methotrexate compared with fallopian tube-sparing laparoscopy for small unruptured ectopic pregnancy.

METHODS

A decision-analytic model accounting for varying resolution rates, complication rates, and cost estimates was built to compare the use of methotrexate with laparoscopy. Meta-analysis results of studies identified by a MEDLINE search for IM methotrexate resolution rates and tube-sparing laparoscopy resolution rates were used in model estimation. A similar process was used to generate model complication rates. Data on associated resource use were derived from established clinical guidelines. Estimates of 1998 costs incurred by provider organizations were calculated using data from a large managed care organization.

RESULTS

The average methotrexate resolution rate among the studies included was 87% (range 75-90%). The average laparoscopy resolution rate was 91% (range 72-100%). Complication rates for methotrexate ranged from 0% to 22%, with an average of 10% for minor complications, and from 0% to 11% for serious complications, with an average of 7%. Complication rates for laparoscopy ranged from 0% to 8% for intraoperative complications, with an average of 2%, and from 0% to 15% for postoperative complications, with an average of 9%. Baseline model estimates indicated an average cost saving of more than $3000 per resolved ectopic pregnancy with methotrexate treatment compared with laparoscopy. Results of extensive sensitivity analyses supported the finding of a cost saving with methotrexate treatment.

CONCLUSION

Single-dose methotrexate is a cost-saving, nonsurgical, fallopian tube-sparing treatment for ectopic pregnancy.

Direct cost of single dose methotrexate for unruptured ectopic pregnancy. Prospective comparison with laparoscopy

OBJECTIVES

to compare the direct cost of single dose methotrexate (MTX) and laparoscopy in the treatment of unruptured ectopic pregnancy (unruptured EP).

STUDY DESIGN

A prospective nonrandomized study. Thirty-two women received intramuscular MTX (1 mg/kg) on an out-patient basis when they fulfilled the following requirements: human chorionic gonadotropin (hCG) level <5000 IU/l, hematosalpinx diameter <3 cm and peritoneal fluid <100 cc. Follow-up consisted of clinical controls and hCG assays. Twenty-seven women eligible for MTX therapy according to the above conditions underwent laparoscopic salpingectomy because some of them refused the therapy while others had contraindications to MTX. We recorded all the medical expenses related to the out-patient and in-patient management for the two treatment options. The cost was calculated according to the French General Nomenclature of Professional Acts and expressed in Euros.

RESULTS

MTX resulted in a significantly lower mean direct cost in comparison with surgery (E 1145 vs. 2442, P=0.006) that was mainly due to shortened hospital stay (1.1 vs. 2.8 days, P=0.007). Conversely MTX required a significantly higher number of medical acts during the follow-up. Costs for MTX therapy were closely related to the length of hospitalization and to the duration of the follow-up.

CONCLUSION

Single dose MTX provides significant cost-savings when compared to laparoscopy. Savings reach a peak for small unruptured EP because hospitalization is not required and the length of follow-up reduced.

Extra-amniotic saline infusion versus extra-amniotic prostaglandin F2alpha for cervical ripening and induction of labor

OBJECTIVE

To compare the effectiveness of extra-amniotic saline infusion versus extra-amniotic prostaglandin F2alpha for cervical ripening, induction of labor and achievement of vaginal delivery in patients with unfavorable cervices.

METHOD

A randomized trial of extra-amniotic saline infusion versus extra-amniotic prostaglandin F2alpha performed at Harare Central Hospital Maternity Unit, Zimbabwe. One hundred and sixty-four patients were recruited from those referred to Harare Central Hospital Maternity Unit who required induction of labor for either maternal or fetal indications.

RESULTS

162 patients (extra-amniotic PgF2alpha group, N = 81; extra-amniotic saline infusion group, N = 81) had complete information. Two patients (one from each group) were lost to follow up. The demographic characteristics of the patients and the indications for induction were not statistically different. There was a marginally statistically significant difference in the change of Bishop Score in favor of the extra-amniotic saline infusion (4.0, S.D. = 1.4) as compared to (4.5, S.D. = 1.5) for extra-amniotic PgF2alpha (P value = 0.047). All other parameters showed no statistically significant differences. Maternal and fetal complications were minimal and not significantly different. Extra-amniotic saline infusion was however almost six times cheaper than PgF2alpha.

CONCLUSION

Extra-amniotic saline infusion is as effective as PgF2alpha, safe, but much cheaper than PgF2alpha and should be seriously considered as a method of first choice in resource-poor settings.

Comparative study of intravaginal misoprostol with gemeprost as an abortifacient in second trimester missed abortion

This prospective, randomized study compared the efficacy of intravaginal misoprostol (Cytotec) and gemeprost (Cervagem) as an abortifacient for intrauterine deaths in second trimester pregnancy. Side-effects, complications and the cost-effectiveness associated with each drug were assessed. 21 out of 25 patients (84%) in the misoprostol group aborted whereas only 17 out of 25 patients (68%) in the gemeprost group aborted within 24 hours after the initiation of therapy. In the misoprostol group, the abortion rate was influenced by the gestational age with 100% abortion rate for those > 17 weeks' gestation compared to 67% for those with a gestational age of 13-16 weeks. Side-effects were rare in either group and no major complications were reported in either group. Misoprostol was definitely more cost-effective compared to gemeprost as the mean cost of inducing an abortion using misoprostol was RM 1.08 whereas that of gemeprost was RM 105. We thus concluded that misoprostol was at least as effective as gemeprost as an abortifacient for intrauterine death in second trimester pregnancy. Moreover, it was less costly, with very few side-effects.