Pregnancy-related admissions to the intensive care unit

Profile of Obstetric Patients in Intensive Care Unit: A Retrospective Study from a Tertiary Care Center in North India

Background

Critically ill obstetric patients constitute a small number of intensive care unit (ICU) admissions. Physiological changes in pregnancy along with certain pregnancy-specific diseases may cause a rapid worsening of the health status of the patient necessitating ICU care. The present study aims to study the clinical profile of the obstetric patients requiring ICU care.

Materials and methods

It was a retrospective analysis of pregnant/postpartum (up to 6 weeks) admissions over a period of 18 months.

Results

Over these 18 months, 127 women required ICU admission. The most common reasons for ICU admission were obstetric hemorrhage (37.79%) and (pre)eclampsia (28.35%). Ten patients presented with antepartum hemorrhage (placenta previa, placenta accreta, placenta increta). The rest of the patients (n = 38) had atonic postpartum hemorrhage with five having severe anemia. Among the nonobstetric causes (n = 26/127), ICU admission was the most common among those with preexisting heart diseases (n = 10; 7.87%). Forty-nine patients were ventilated mechanically (38.58%), with eclampsia being the most common primary diagnosis (n = 23). We observed 10 maternal deaths (7.87%) with septicemia being the most important cause of death.

Conclusions

Maternal and child health has become an important measure of human and social development. Early diagnosis and prompt treatment of high-risk obstetric patients in a dedicated obstetric ICU in tertiary hospitals can prevent severe maternal morbidity and improve maternal care.

How to cite this article

Gupta H, Gandotra N, Mahajan R. Profile of Obstetric Patients in Intensive Care Unit: A Retrospective Study from a Tertiary Care Center in North India. Indian J Crit Care Med 2021;25(4):388–391.

An assessment of baseline risk factors for peripartum maternal critical care interventions

BACKGROUND

Maternal morbidity presents a growing challenge to the American healthcare system and increasing numbers of patients are requiring higher levels of care in pregnancy. Identifying patients at high risk for critical care interventions, including intensive care unit admission, during delivery hospitalizations may facilitate appropriate multidisciplinary planning and lead to improved maternal safety. Baseline risk factors for critical care in pregnancy have not been well-described previously.

OBJECTIVE

This study assesses baseline factors associated with critical care interventions that were present at admission for delivery.

STUDY DESIGN

This is a secondary analysis of a multicenter observational registry of pregnancy after prior uterine surgery and primary cesarean delivery. All women with known gestational age were included. The primary outcome measure was a composite of critical care interventions that included postpartum intensive care unit admission, mechanical ventilation, central intravenous access, and arterial line placement. Risk for this critical care outcome measure was compared by selected baseline and obstetric characteristics known at the time of hospital admission, including maternal age, pre-pregnancy BMI, race, maternal co-morbidities, parity, and plurality. We evaluated these potential predictors and fit a multivariable logistic regression model to ascertain the most significant risk factors for critical care during a delivery hospitalization.

RESULTS

73,096 of 73,257 women in the parent trial met inclusion criteria, of whom 505 underwent a critical care intervention (0.7%). In the adjusted model, heart disease [aOR = 10.05, CI = 6.97 - 14.49], renal disease [aOR = 2.78, CI = 1.49 - 5.18], and connective tissue disease [aOR = 3.27, CI = 1.52 - 6.99], as well as hypertensive disorders of pregnancy [aOR = 2.04, CI = 1.31 - 3.17] were associated with the greatest odds of critical care intervention [p < .01] (Table 2). Other predictors associated with increased risk included maternal age, African American race, smoking, diabetes, asthma, anemia, nulliparity, and twin pregnancy.

CONCLUSION

In this cohort, women with cardiac disease, renal disease, connective tissue disease and preeclampsia spectrum disorders were at increased risk for critical care interventions. Obstetric providers should assess patient risk routinely, ensure appropriate maternal level of care, and create multidisciplinary plans to improve maternal safety and reduce risk.

Indications and characteristics of obstetric patients admitted to the intensive care unit: a 22-year review in a tertiary care center

Objective

Reviewing indications and characteristics of obstetric patients admitted to the intensive care unit (ICU) of a tertiary care center, comparing those patients by time period and place of delivery, and to verify clinical utility of acute physiology and chronic health evaluation (APACHE) II score in ICU-admitted women.

Methods

Retrospective analyses were carried out for parturients admitted to the ICU of our institution from 1994 to 2015. Clinical characteristics were compared between time period (period 1: 1994-2004; period 2: 2005-2015) and place of delivery (our institution and local hospitals). Receiver operating characteristic (ROC) curve analysis was used to evaluate the usefulness of APACHE II score to predict maternal mortality.

Results

During 22-year period, 176 women required ICU admission, showing the incidence of 2.2 per 1,000 deliveries. The most common reason for ICU admission was postpartum hemorrhage (56.3%), followed by hypertensive disorders (19.3%), sepsis (3.4%), and pulmonary and amniotic fluid embolism (2.3%). Period 2 showed older maternal age (32.7±4.8 vs. 30.8±4.4 years, P=0.006, higher embolization rate (26.4% vs.1.2%, P<0.001), and lower hysterectomy rate (30.8% vs. 49.4%, P=0.012). Cases from local hospitals showed significantly higher proportion of postpartum hemorrhage (84.5% vs. 42.2%, P<0.001). Overall maternal death occurred in 5.1% (9/176) including 6 direct maternal deaths. The APACHE II score showed area under the ROC curve of 0.813 (confidence interval [CI], 0.607-1.000) for prediction of maternal mortality.

Conclusion

The incidence of obstetric ICU admission was 2.2 per 1,000 deliveries and the most common reason was postpartum hemorrhage followed by hypertensive disorders. APACHE II score could be used to predict mortality in obstetric ICU admission.

Potentially Avoidable Surgical Intensive Care Unit Admissions and Disposition Delays

Importance

High health care costs encourage initiatives that avoid overuse of resources and identify opportunities to promote appropriate care.

Objective

To investigate the causes of potentially avoidable surgical intensive care unit (SICU) admissions and disposition delays to determine whether targeted interventions could decrease these stays.

Design, Setting, and Participants

This prospective, observational study focused on potentially avoidable SICU days, as determined by observers with input from the rounding intensivists at a 24-bed open SICU at an urban, academic hospital. The preintervention phase occurred from April 6 through June 21, 2015; after implementation of targeted interventions, the postintervention phase occurred from April 4 through June 28, 2016. Data collected included demographic characteristics, reason for admission, and length of stay. All patients admitted to the SICU during the preintervention and postintervention phases were included in the analysis.

Interventions

Based on results collected in the preintervention phase, targeted interventions were designed and implemented from July 1, 2015, through March 31, 2016, including (1) reducing SICU care for minor traumatic brain injury, (2) optimizing postoperative airway management, (3) enhancing communication between services regarding transfers to the SICU, (4) identifying and facilitating more timely end-of-life conversations and supportive care consultations, and (5) encouraging early disposition of patients to floor beds.

Main Outcomes and Measures

Changes in the proportion of potentially avoidable SICU days owing to potentially avoidable admissions and/or disposition delays.

Results

A total of 459 patients (253 men [55.1%] and 206 women [44.9%]; median age, 62 years [interquartile range, 46-75 years]) were admitted during the preintervention and postintervention phases. Of 261 patients admitted during the preintervention period and 245 during the postintervention period, median SICU and hospital length of stay remained unchanged. A reduction was noted in the percentage of postintervention SICU days owing to potentially avoidable admissions (152 of 1168 days [13%] vs 118 of 1338 days [8.8%]; P = .001) and disposition delays (138 of 1168 days [11.8%] vs 97 of 1338 days [7.2%]; P < .001). During the postintervention period, decreases were noted in the SICU days related to the most common sources of potentially avoidable admissions (SICU stay ≤24 hours, airway concerns, and somnolence) and disposition delays (end-of-life decisions and floor bed unavailable) as well as in the overall rate of potentially avoidable days (269 of 1168 days [23%] vs 205 of 1338 days [15.3%]; P < .001).

Conclusions and Relevance

Nearly one-fourth of SICU days could be categorized as potentially avoidable. Targeted interventions resulted in a significant reduction of potentially avoidable SICU days.

Evaluation of Admission Indications, Clinical Characteristics and Outcomes of Obstetric Patients Admitted to the Intensive Care Unit of a Teaching Hospital Center: A Five-Year Retrospective Review

Background

Care of obstetric patients has always been a challenge for critical care physicians, because in addition to their complex pregnancy-related disease, fetal viability is considered.

Objectives

The aim of this study was to review the admission indications, clinical characteristics and outcomes of obstetric patients, admitted to the intensive care unit of Alzzahra teaching hospital affiliated to Guilan University of Medical Sciences, Rasht, Iran.

Methods

This retrospective cohort study was conducted on pregnant /post-partum (up to 6 weeks) patients admitted to the ICU over a 5-year period from April 2009 to April, 2014.

Results

Data from 1019 subjects were analyzed. Overall, 90.1% of the patients were admitted in the postpartum period. The most common indications for admission were pregnancy related hypertensive disorders (27.5%) and obstetric hemorrhage (13.5%). Epilepsy (5.4%) and cardiac disease (5.2%) were the most common non-obstetric indications.

Conclusions

Pregnancy-related hypertensive disorders and obstetric hemorrhage were the main reasons for admission, and epilepsy and cardiac disease were the most common non-obstetric indications. Efforts must be concentrated on increasing antenatal care.

The Usefulness of the APACHE II Score in Obstetric Critical Care: A Structured Review

OBJECTIVE

To assess the performance of the Acute Physiology and Chronic Health Evaluation II (APACHE II) mortality prediction model in pregnant and recently pregnant women receiving critical care in low-, middle-, and high-income countries during the study period (1985-2015), using a structured literature review.

DATA SOURCES

Ovid MEDLINE, Embase, Web of Science, and Evidence-Based Medicine Reviews, searched for articles published between 1985 and 2015.

STUDY SELECTION

Twenty-five studies (24 publications), of which two were prospective, were included in the analyses. Ten studies were from high-income countries (HICs), and 15 were from low- and middle-income countries (LMICs). Median study duration and size were six years and 124 women, respectively.

DATA SYNTHESIS

ICU admission complicates 0.48% of deliveries, and pregnant and recently pregnant women account for 1.49% of ICU admissions. One quarter were admitted while pregnant, three quarters of these for an obstetric indication and for a median of three days. The median APACHE II score was 10.9, with a median APACHE II-predicted mortality of 16.6%. Observed mortality was 4.6%, and the median standardized mortality ratio was 0.36 (interquartile range 0.23 to 0.73). The standardized mortality ratio was < 0.9 in 24 of 25 studies. Women in HICs were more frequently admitted with a medical comorbidity but were less likely to die than were women in LMICs.

CONCLUSION

The APACHE II score consistently overestimates mortality risks for pregnant and recently pregnant women receiving critical care, whether they reside in HICs or LMICs. There is a need for a pregnancy-specific outcome prediction model for these women.

Study of Obstetric Admissions to the Intensive Care Unit of a Tertiary Care Hospital

PURPOSE

To analyze obstetric admissions to intensive care unit and to identify the risk factors responsible for intensive care admission.

METHODS

This is a retrospective study of all obstetric cases admitted to the intensive care unit over a period of 3 years. Data were collected from case records. The risk factors responsible for ICU admission were analyzed.

RESULTS

There were 765 obstetric admissions to ICU accounting for 1.24 % of all deliveries. 56.20 % were in the age group of 20-25 years. 38.43 % were in their first pregnancy. 36.48 % of cases were at 37-40 weeks of gestation. Postpartum admissions were 80.91 %. Major conditions responsible were obstetric hemorrhage in 44.05 %, hypertensive disorders of pregnancy in 28.88 %, severe anemia in 14.37 %, heart disease in 12.15 %, and sepsis in 7.97 % of ICU cases. 40.39 % cases required high dependency care. Maternal mortality was seen in 15.55 % of ICU cases. Commonest cause of mortality was hemorrhagic shock (26.89 %) and multiorgan dysfunction syndrome (26.05 %).

CONCLUSION

Commonest risk factors for ICU admissions are obstetric hemorrhage and hypertensive disorders of pregnancy. Other major risk factors are severe anemia, heart disease, sepsis, more than one diagnosis on admission, and the need for cesarean delivery.

Evaluation of obstetric admissions to intensive care unit of a tertiary referral center in coastal India

Background and Aim:

To evaluate the occurrence, indications, course, interventions, and outcome of obstetric patients admitted to the intensive care unit (ICU).

Design:

Retrospective study.

Setting:

ICU of a Medical College Hospital.

Materials and Methods:

The data collected were age, parity, obstetric status, primary diagnosis, interventions, and outcome of obstetric patients admitted to the ICU from Jan 2005 to June 2011.

Results:

Total deliveries were 16,804 in 6.5 years. Obstetric admissions to the ICU were (n = 65) which constitutes 0.39% of deliveries. Majority of the admissions were in the postpartum period (n = 46, 70.8%). The two common indications for admission were obstetric hemorrhage (n = 18, 27.7%) and pregnancy related hypertension with its complications (n = 17, 26.2%). The most common intervention was artificial ventilation (n = 41, 63%). The mortality among obstetric admissions in the ICU was (33.8% (22/65)). The patients appropriate for High Dependency Unit (HDU) care was (32.3% (21/65)). The statistical analysis was done by fractional percentage and Chi-square test.

Conclusions:

Hemorrhage and pregnancy-related hypertension with its complications are the two common indications for ICU admissions. The need for a HDU should be considered.

Clinical Profile of Obstetric Patients Admitted to the Medical-Surgical Intensive Care Unit (MSICU) of an Inner-City Hospital in New York

BACKGROUND

Pregnancy is associated with physiological and anatomical changes that usually occur uneventfully in majority of women. However, these changes can cause major maternal morbidity with potential catastrophic consequences. The purpose of this study is to evaluate the clinical characteristics of obstetric patients admitted to the MSICU of an inner-city hospital in New York.

METHODS

A prospective, observational study was conducted among all the obstetric patients admitted to the MSICU between June 1, 2009 and June 30, 2012.

RESULTS

A total of 19 obstetric patients were admitted to the MSICU between June 1, 2009 and June 30, 2012. The most common comorbidity on admission was hypertensive disorder. Hemodynamic unstability and shock was the most common admission diagnosis. The mean length of stay was 3.5 days. One patient died.

CONCLUSIONS

Obstetric hemorrhage and pregnancy-induced hypertensive disorders remains as the most common entities requiring intensive care unit (ICU) admission among obstetric patients. A multidisciplinary team involvement is essential in the management of these patients.

Delivering obstetrical critical care in developing nations

Obstetrical critical care has not been able to achieve the same level of peaks in developing nations like India, as in the western countries. Numerous factors, including clinical and economical, have played a major role in widening the gap of quality care delivery in severely ill obstetric patients, between the two extreme worlds. Moreover, this wide gap can be, to a large extent, attributable to the lower literacy rates, paucity of research in obstetrical critical care, poverty, lack of awareness, and the sociocultural and behavioral factors prevalent in these developing nations. The most common indication for Intensive Care Unit (ICU) admission of such patients throughout the world is hemorrhage, both antepartum and postpartum. Hypertensive disorders, pre-eclampsia, and its related complications are also major contributory factors for such admissions. The pattern of the disease necessitating such admissions influences maternal mortality to a great extent. The present article reviews the most common indications of obstetrical admissions to the ICU, the challenges and obstacles in the treatment of severely ill obstetric patients, their possible outcome in the developing nations, room for improvement, and the need for a change in the system for better delivery of critical care obstetrical services.

Maternal severity of illness across levels of care: a prospective, cross-sectional study

BACKGROUND

The severity of illness of women experiencing severe maternal morbidity has not been quantified outside of the intensive care setting yet is likely to have a bearing on clinical needs.

AIM

To examine severity of illness in women with severe maternal morbidity.

METHODS

A prospective observational study of critically ill pregnant and postpartum women was undertaken in intensive care units (ICU), high dependency units (HDU) and delivery suites (DS) of seven tertiary-level hospitals in Melbourne, during 2002-2004. Severity of illness was scored using the Acute Physiology and Chronic Health Evaluation version II (APACHE II) and Therapeutic Intervention Scoring System 28 items (TISS 28).

RESULTS

137 women participated in the study: ICU (n=33), HDU (n=46) and DS (n=58). The mean APACHE II score was 8.6 (95% CI 7.7-9.5) and mean TISS 28 score was 22.5 (95% CI 21.2-23.9). Women in ICU were sicker according to both APACHE II (mean 12.6, 95% CI 8.3-16.9) and TISS 28 (mean 31.5, 95% CI 28.2-35.5) compared to women not admitted to ICU (p<.005). There was no difference in the mean APACHE II scores of women in HDU (7.7, 95% CI 5.5-9.9) and DS (7.0, 95% CI 5.2-8.8; p=.20). Women born outside of Australia were more likely to be admitted to ICU (OR 3.27, 95% CI 1.19-8.97). Known risk factors like multiple pregnancy, age≥35 years and nulliparity were not associated with ICU admission.

CONCLUSIONS

There was no difference in the severity of illness in women cared for in HDU and DS. It was not possible to predict which women would require ICU admission. Measurement of severity of illness adds a valuable dimension to the study of severe maternal morbidity.

The role of the post-anaesthesia care unit in the management of high-risk obstetric patients

INTRODUCTION

High-risk obstetric patients in the immediate postpartum period are frequently admitted to the intensive care unit, but the necessity of this practice has recently been doubted. Herein we describe the efficiency of utilizing the post-anaesthesia care unit (PACU) as an intermediate intensive care facility for those patients.

MATERIAL AND METHODS

We retrospectively described the reasons for admission, duration of stay, the anaesthetic used, main interventions and outcome for all obstetric admissions in the PACU during a period of 4 years in a university hospital.

RESULTS

During the 4-year period 47 women were admitted to the PACU after delivery. The frequency of admission to the PACU was 15.3 per 1000 deliveries, while obstetric cases represented 4.4 per 1000 admissions to the PACU. The majority represented caesarean sections (81%). The main reasons for admission to the PACU were haemorrhage (49%), cardiovascular problems (19%) and preeclampsia/eclampsia (17%). Mean length of stay in the PACU was 14.5 ±11.6 h, being significantly less in women having received epidural anaesthesia (8.2 ±5.6 h) compared to those who delivered with general anaesthesia (19.0 ±13.6 h, p < 0.05). General anaesthesia was used in 85% of cases in which emergency delivery was indicated, but only in 27% of cases without emergency indications for delivery (p < 0.01). No death or admission to the intensive care unit occurred during the study period.

CONCLUSIONS

The PACU can offer an intermediate intensive care facility for high-risk obstetric patients, thus reducing unnecessary admissions to the intensive care unit.

Critical Care of Gynecological and Obstetric Patients: A decade of surgical intensive care experience

Despite the emergence of therapeutic advances, the morbidity and mortality still occur in the obstetric patients, although intensive care utilization by obstetric and gynecological patient, are still rare compared to the general population. Majority of obstetric patients needed the intensive care therapy compared to gynecological patients. The aim of our study was to know the indications for the intensive care admission by obstetric and gynecological patients, length of stay and outcome of these patients.

Methods: We retrospectively reviewed the medical records of all obstetric and gynecological patients admitted to our Surgical and Trauma Intensive Care Units (SICU and TICU) from February 1995 to March 2005. Indication for admission, nationality, age, and length of stay in ICU, severity of disease and outcome of these patients were recorded. Data analyzed with SPSS program.

Results: A total of 182 patients were admitted to the SICU of the Hamad Medical Corporation in Doha, Qatar, from the Women's Hospital. 159 (87%) patients were obstetric patients and 23 (13%) patients gynecological patients, 126 (69.6%) patients were admitted post Lower Segment Caesarean Section (LSCS). The most common indication for admission was 73 (39.3%) patients obstetric hemorrhage and Disseminated Intravascular Coagulation (DIC), and then 44 (25.3%) patients of hypertensive disorder of pregnancy. The major anesthesia related indication was scoline apnea, 21 (11.6%). Total three obstetric patients died, two due to severe sepsis and multi-organ failure and one due to cerebral sinus thrombosis, giving mortality rate of 1.66%.

Conclusion: Intensive care therapy required by gynecological and obstetric patient is less than the general population. The commonest indication for admission was obstetric hemorrhage, DIC, and hypertensive disorders of pregnancy. The mortality was due to septic shock with multi-organ failure, and cerebral venous sinus thrombosis.

Is intensive care the only answer for high risk pregnancies in developing nations?

BACKGROUND

Management of high risk obstetric patients.

AIM

The present study was conducted to evaluate the primary causes of the admission of obstetric patients to Intensive Care Unit (ICU), the presence of co-morbid diseases, outcome of such patients, their survival rate as well as the factors which contribute to the maternal mortality.

SETTINGS AND DESIGN

A retrospective study was conducted in the Department of Obstetrics and Gynaecology and Anaesthesiology/ICU of our Institute.

MATERIALS AND METHODS

Sixty-one obstetric patients, who were admitted to ICU between 20 December 2006 and 31 January 2010, were evaluated for various factors responsible for their admission as well as their outcome.

STATISTICAL ANALYSIS

At the end of study, the data were arranged systematically and subjected to statistical analysis using nonparametric tests and P value <0.05 was considered significant.

RESULTS

Majority of the 61 patients admitted in ICU were referred from the peripheral health centers, smaller nursing homes/hospitals and some even without proper primary care and mainly comprising uneducated and rural population. Hemorrhage, pregnancy induced hypertension, cardiac diseases, respiratory insufficiency and sepsis were the main causes for admission. A total of 18 patients among 61 died during their ICU stay in the hospital.

CONCLUSIONS

In the developing countries, high risk pregnancy should be managed at peripheral centers with proper facilities, antenatal visits and timely referral. The intensive care help should be reserved for very high risk pregnancies with co-morbid diseases.

Indications and outcome for obstetric patients' admission to intensive care unit: a 7-year review

The objective of this retrospective study was to investigate the indications, interventions and clinical outcome of pregnant and newly delivered women admitted to the multidisciplinary intensive care unit at the King Abdullah University Hospital in Jordan over a 7-year period from January 2002 to December 2008. The collected data included demographic characteristics of the patients, mode of delivery, pre-existing medical conditions, reason for admission, specific intervention, length of stay and maternal outcome. A total of 43 women required admission to the intensive care unit (ICU), which represented 0.37% of all deliveries. The majority (95.3%) of patients were admitted to the ICU postpartum. The most common reasons for admissions were (pre)eclampsia (48.8%) and obstetric haemorrhage (37.2). The remainder included adult respiratory distress syndrome (6.9%), pulmonary embolism (2.3%) and neurological disorders (4.6%). Mechanical ventilation was required to support 18.6% of patients and transfusion of red blood cells was needed for 48.8% of patients. There were three maternal deaths (6.9%). A multidisciplinary team approach is essential to improve the management of hypertensive disorders and postpartum haemorrhage to achieve significant improvements in maternal outcome. A large, prospective study to know which women are at high risk of admission to the intensive care units and to prevent serious maternal morbidity and mortality is warranted.

Pregnant and postpartum admissions to the intensive care unit: a systematic review

PURPOSE

To determine the incidence and characteristics of pregnant and postpartum women requiring admission to an intensive care unit (ICU).

METHODS

Medline, PubMed, EMBASE and CINAHL databases (1990-2008) were systematically searched for reports of women admitted to the ICU either pregnant or up to 6 weeks postpartum. Two reviewers independently determined study eligibility and abstracted data.

RESULTS

A total of 40 eligible studies reporting outcomes for 7,887 women were analysed. All studies were retrospective with the majority reporting data from a single centre. The incidence of ICU admission ranged from 0.7 to 13.5 per 1,000 deliveries. Pregnant or postpartum women accounted for 0.4-16.0% of ICU admissions in study centres. Hypertensive disorders of pregnancy were the most prevalent indication for ICU admission [median 0.9 cases per 1,000 deliveries (range 0.2-6.7)]. There was no difference in the profile of ICU admission in developing compared to developed countries, except for the significantly higher maternal mortality rate in developing countries (median 3.3 vs. 14.0%, p = 0.002). Studies reporting patient outcomes subsequent to ICU admission are lacking.

CONCLUSIONS

ICU admission of pregnant and postpartum women occurs infrequently, with obstetric conditions responsible for the majority of ICU admissions. The ICU admission profile of women was similar in developed and developing countries; however, the maternal mortality rate remains higher for ICUs in developing countries, supporting the need for ongoing service delivery improvements. More studies are required to determine the impact of ICU admission for pregnant and postpartum women.

A simple score to predict the outcome of severe malaria in adults

BACKGROUND

World Health Organization treatment guidelines recommend that adults with severe malaria be admitted to an intensive care unit (ICU). However, ICU facilities are limited in the resource-poor settings where most malaria occurs. Identification of patients at greater risk of complications may facilitate their triage and resource allocation.

METHODS

With use of data from a trial conducted in Southeast Asia (n=868), a logistic regression model was built to identify independent predictors of mortality among adults with severe malaria. A scoring system based on this model was tested in the original dataset and then validated in 2 series from Bangladesh (n=188) and Vietnam (n=292).

RESULTS

Acidosis (base deficit) and cerebral malaria (measured as Glasgow Coma Score) were the main independent predictors of outcome. The 5-point Coma Acidosis Malaria (CAM) score was simply derived from these 2 variables. Mortality increased steadily with increasing score. A CAM score <2 predicted survival with a positive predictive value (PPV) of 95.8% (95% confidence interval [CI], 93%- 97.7%). Of the 14 of 331 patients who died with a CAM score <2, 11 (79%) had renal failure and death occurred late after hospital admission (median, 108 h; range, 40-360 h). Substitution of plasma bicarbonate as the measure of acidosis only slightly reduced the prognostic value of the model. Use of respiratory rate was inferior, but a score <2 still predicted survival with a PPV of 92.2% (95% CI, 89.1%-94.7%).

CONCLUSIONS

Patients with a CAM score <2 at hospital admission may be safely treated in a general ward, provided that renal function can be monitored.

A national survey of obstetric early warning systems in the United Kingdom

BACKGROUND

Despite recommendations in the two most recent Confidential Enquiries into Maternal and Child Health (CEMACH) reports, and improvements in patient care using early warning scoring systems (EWS) in the general adult population, no validated system currently exists for the obstetric population.

METHODS

We performed an Obstetric Anaesthetists' Association (OAA) approved postal survey of all UK consultant-led obstetric anaesthetic units in November 2007 to assess opinions on the value and of such a system and how it could be implemented, and invited comments and samples of systems already in use.

RESULTS

The response rate was 71%. Of those who replied a median usefulness score of 80% for a standardised national obstetric EWS was demonstrated. Eighty-nine percent of units thought it would be possible to implement a system, and although 96% of UK hospitals already use a non-obstetric EWS, only 23% of respondents thought this to be relevant to obstetric physiology and disease. Nine units returned copies of their obstetric EWS. Using extracts from some of the submitted versions we have designed and implemented a system locally and submitted it to the OAA for consideration.

CONCLUSIONS

The survey results support CEMACH recommendations for a nationally agreed obstetric EWS.

[Morbidity and mortality of patients with preeclampsia or HELLP syndrome transferred in intensive care]

CONTEXT

During pregnancy, the two leading causes of admission in intensive care are preeclampsia and obstetric haemorrhage. However, there are few studies about preeclamptic patients admitted in intensive care. Our purpose was to determine the outcome of pregnancies with preeclampsia and/or HELLP syndrome admitted in intensive care.

METHODS

We performed a retrospective study between March 1996 and April 2005 in a level III maternity. 533 patients were managed with preeclampsia and/or HELLP syndrome during this period. We compared patients admitted in intensive care with patients who did not require admission in intensive care.

RESULTS

Sixty six patients (12,4%) with preeclampsia and/or HELLP were admitted in intensive care. Severe HELLP syndrome, eclampsia, neurological troubles and acute pulmonary oedema were the four leading causes of admission. The mean duration of admission was 3, 2+/-2,9 days. Mean age of the patients (28, 2+/-5,8 vs. 29,0+/-5,8 years, NS) and number of primiparous (71, 2% vs 66,6%, NS) were similar between the two groups. The mean gestational age of delivery was reduced when patients were needed admission in intensive care (29,8+/-3,9 weeks of gestation versus 32,5+/-4,4, p<0,001). 77, 3% of babies survived in the intensive care group compared with 90,4% in the other group (p<0,01).

CONCLUSION

The short-term outcome of patients admitted in intensive care for preeclampsia or HELLP syndrome is generally good. However, neonatal morbidity and mortality remained important when women needed management in intensive care.

Infection in obstetric critical care

Infections in critically ill obstetric patients are observed worldwide, although the incidence, aetiology and patient outcome vary between geographic locations. This chapter focuses on sepsis, with emphasis on the pathophysiology, outcome and specific management issues.

Temporizing treatment for the respiratory-compromised gravida: an observational study of maternal and neonatal outcome

Acute lung disease may originate in pregnancy because of the pregnancy itself or because of an intercurrent etiology. The purpose of this study was to describe the effect of prolonged antepartum mechanical ventilatory support on the mother and the neonate when the strategy was to prolong the pregnancy rather than deliver preterm. Among 72 312 parturients over eight years, three gravidae required mechanical ventilation 12-48 h after admission for different conditions, 45-91 days before delivery. Gestational age at intubation was 21-28 weeks. Appropriate analgesia, broad-spectrum antibiotics, vasopressors and betamethsone for fetal lung maturity were used in all cases. None received tocolysis. Despite uterine distension, respiratory support provided adequate oxygenation and FiO2 could be maintained below critical levels, obviating the need for early delivery. All women survived, were weaned from ventilatory support, discharged, and delivered healthy neonates at term. Mode of delivery was dictated by obstetrical indicators only. All five infants (two sets of twins) are healthy at 12-36 months with appropriate developmental milestones. We conclude that when the maternal condition is amenable to therapy, and given the risks of labor induction and of prematurity, there is only limited benefit of delivery while on mechanical ventilation.

Obstetric critical care: a blueprint for improved outcomes

INTRODUCTION

Obstetric patients are generally young and healthy. However, the potential for catastrophic complications is real, and despite the therapeutic advances of the last few decades, maternal morbidity and mortality continue to occur. This may be related to the pregnancy itself, aggravation of a preexisting illness, or complications of the (operative) delivery.

PURPOSE

The purpose of this review is two-fold: first, to provide an update on currently available reports pertaining to important critical care issues of the obstetric patient population and, second, to present current comprehensive treatment options for preeclampsia and massive obstetric hemorrhage because both are responsible for the majority of maternal mortality and morbidity worldwide.

RESULTS

The most common reasons for intensive care unit admission are hypertensive disorders and massive obstetric hemorrhage. Timely delivery and prompt initiation of antihypertensive therapy for severe hypertension form the mainstay of care in preeclampsia. Restoration of circulating blood volume and rapid control of bleeding and impaired coagulation are the main factors in the management of massive obstetric hemorrhage. Puerperal morbidity has become the main topic of quality of care issues in maternity care. Although the Acute Physiology and Chronic Health Evaluation II score is commonly used in the intensive care unit, it does not seem to be appropriate for pregnant women because it overestimates their mortality rates. A high-dependency care unit suits the needs for at least half of the obstetric patient population in need of higher acuity care and will save considerable cost.

CONCLUSION

Emphasis on early detection of maternal problems and prompt referral to tertiary centers with intensive care unit facilities to provide optimum care of the circulation, blood pressure, and respiration at an early stage could minimize the prevalence of multiple organ failure and mortality in critically ill obstetric patients.

Caring for pregnant and postnatal women in intensive care: what do we know?

Critically ill pregnant and postnatal women admitted to intensive care units (ICUs) require highly specialised care, components of which many critical care nurses are unfamiliar with. There are no specialist critical care obstetric centres in Australia, with critically ill obstetric patients admitted to general ICUs. There are no published guidelines and little research that assist critical care nurses to care for such women. Furthermore, the admission of pregnant or postnatal women to ICUs is likely to increase with emerging childbearing patterns in Australia. It is therefore timely to review what we know about caring for critically ill pregnant and postnatal women. This paper analyses the literature on intensive care utilisation by obstetric patients and provides an overview regarding which pregnant and postpartum women require intensive care. The key areas of providing mechanical ventilation to pregnant women and assessment of fetal wellbeing are explored in detail. The most frequent conditions and their treatment, preeclampsia and obstetric haemorrhage, are also reviewed. The establishment of lactation is also considered as the critical carenurse is commonly involved in supporting the woman's endeavour to breastfeed.

Utility of Acute Physiology, Age, and Chronic Health Evaluation (APACHE III) score in maternal admissions to the intensive care unit

OBJECTIVE

A mean Acute Physiology, Age, and Chronic Health Evaluation (APACHE III) score of > 50 is associated with increased intensive care unit mortality rate in nonpregnant cardiac and trauma patients. The objective was to determine the usefulness of the APACHE III score in maternal admissions to an intensive care unit in a tertiary care center in an urban multicultural city.

STUDY DESIGN

This was a retrospective review of all maternal admissions (> 20 weeks of gestation or after delivery) to an intensive care unit between January 2002 and May 2004. Demographics, obstetric and medical history, and 20 physiologic variables that comprise the APACHE III were recorded. The minimum APACHE III score (lowest risk of death) is 0; maximum is 299. The association between APACHE III score and maternal death was assessed with Mann Whitney U test. Significance was assumed at a probability value of < .05.

RESULTS

Fifty-eight subjects met the study criteria. Thirty percent of these women were admitted antepartum (27 +/- 1.0 weeks of gestation); 31% of the women were admitted on the day of delivery; and 29% of the women were admitted after delivery. Mean maternal age was 27 +/- 6.7 years. Acute conditions that resulted in transfer to the intensive care unit included preeclampsia (24%), cardiorespiratory disease (21%), hemorrhage (16%), infection (12%), trauma (7%), and thromboembolism (3%). Fifty-five percent of the women had no previous underlying obstetric complications, and 98% of the women had no underlying chronic health condition. Fifty-eight percent of the women received care in a medical intensive care unit; 28% of the women received care in a surgical intensive care unit; 10% of the women received care in a cardiac intensive care unit, and 3% of the women received care in a neurologic intensive care unit. The mean intensive care unit stay was 3.7 +/- 4.6 days, and the mean hospital stay was 9.0 +/- 7 days. Three patients died; the rest of the patients went home in good condition. The median APACHE III score was 34 (range, 14-102) and was not correlated with maternal death.

CONCLUSION

The APACHE III is not associated with risk of intensive care unit-related maternal death.

Critical illness during pregnancy: considerations for evaluation and treatment of the fetus as the second patient

When a critically ill woman is pregnant, clinical interventions for the mother can have a profound effect on fetal status. It is essential that the fetus be considered as the second patient when developing the plan of care. The most practical solution for providing comprehensive care to pregnant women in the intensive care unit (ICU) is a collaborative approach involving members of the ICU and the perinatal team, each contributing their unique knowledge and skills to the care of the mother and her unborn baby. The purpose of this article is to describe a collaborative approach to caring for a pregnant woman in the ICU along with a brief overview of fetal assessment for ICU care providers so they can become familiar with terms and methods used in assessing fetal status and common interventions that promote fetal well-being.