Thrombotic Microangiopathy in a Pregnant Woman With Kidney Transplantation: A Case Report.

BACKGROUND: The differential diagnosis of thrombotic microangiopathy (TMA) in pregnancy includes common conditions, such as preeclampsia. In women with kidney transplantation, additional causes of TMA must be considered. CASE: A 22-year-old primigravid woman with a transplanted kidney presented with fetal growth restriction, hypertension, acute kidney injury, and hemolysis at 28 weeks gestation. While her clinical presentation was initially consistent with preeclampsia, hemolysis persisted beyond 1 week postpartum. Diagnoses of TMA associated with tacrolimus and antibody-mediated rejection were considered. An elevated tacrolimus level likely contributed to her TMA and a decrease in dosage improved her clinical picture and laboratory markers. CONCLUSION: We report the case of a pregnant kidney transplant recipient with TMA. A multidisciplinary approach is required to optimize the maternal health outcomes in this complex population.

Preconception and pregnancy management of women with diabetic nephropathy on angiotensin converting enzyme inhibitors.

Angiotensin converting enzyme (ACE) inhibitors are the mainstay of treatment for diabetic nephropathy to slow progression of disease. Diabetic women of childbearing age with nephropathy should be treated with ACE inhibitors as per guidelines in the pre-pregnancy period. ACE inhibitor use and exposure in the first trimester is controversial and requires counselling pre-pregnancy regarding the risks and benefits of use up to the first trimester, as well as the need to stop ACE inhibitors prior to the second trimester. Current evidence does not suggest that ACE inhibitors in the first trimester are associated with a greater risk of fetal malformations when compared to other antihypertensives. This topic is reviewed in depth, along with blood pressure targets in pregnant women with diabetic proteinuric disease, evidence for prevention of pre-eclampsia, self-monitoring of blood pressures at home in the latter half of pregnancy and the signs and symptoms of pre-eclampsia, proteinuria evolution in pregnancy, renal function prognosis, and restarting ACE inhibitors when breast feeding in the post-partum period.

Medication Deprescribing in Patients Receiving Hemodialysis: A Prospective Controlled Quality Improvement Study.

Rationale & Objective: Patients treated with dialysis are commonly prescribed multiple medications (polypharmacy), including some potentially inappropriate medications (PIMs). PIMs are associated with an increased risk of medication harm (eg, falls, fractures, hospitalization). Deprescribing is a solution that proposes to stop, reduce, or switch medications to a safer alternative. Although deprescribing pairs well with routine medication reviews, it can be complex and time-consuming. Whether clinical decision support improves the process and increases deprescribing for patients treated with dialysis is unknown. This study aimed to test the efficacy of the clinical decision support software MedSafer at increasing deprescribing for patients treated with dialysis. Study Design: Prospective controlled quality improvement study with a contemporaneous control. Setting & Participants: Patients prescribed ≥5 medications in 2 outpatient dialysis units in Montréal, Canada. Exposures: Patient health data from the electronic medical record were input into the MedSafer web-based portal to generate reports listing candidate PIMs for deprescribing. At the time of a planned biannual medication review (usual care), treating nephrologists in the intervention unit additionally received deprescribing reports, and patients received EMPOWER brochures containing safety information on PIMs they were prescribed. In the control unit, patients received usual care alone. Analytical Approach: The proportion of patients with ≥1 PIMs deprescribed was compared between the intervention and control units following a planned medication review to determine the effect of using MedSafer. The absolute risk difference with 95% CI and number needed to treat were calculated. Outcomes: The primary outcome was the proportion of patients with one or more PIMs deprescribed. Secondary outcomes include the reduction in the mean number of prescribed drugs and PIMs from baseline. Results: In total, 195 patients were included (127, control unit; 68, intervention unit); the mean age was 64.8 ± 15.9 (SD), and 36.9% were women. The proportion of patients with ≥1 PIMs deprescribed in the control unit was 3.1% (4/127) vs 39.7% (27/68) in the intervention unit (absolute risk difference, 36.6%; 95% CI, 24.5%-48.6%; P < 0.0001; number needed to treat = 3). Limitations: This was a single-center nonrandomized study with a type 1 error risk. Deprescribing durability was not assessed, and the study was not powered to reduce adverse drug events. Conclusions: Deprescribing clinical decision support and patient EMPOWER brochures provided during medication reviews could be an effective and scalable intervention to address PIMs in the dialysis population. A confirmatory randomized controlled trial is needed.

Patients treated with dialysis are commonly prescribed multiple medications, some of which are potentially inappropriate medications (PIMs). PIMs can increase a patient's pill burden and are associated with an increased risk of harm (some examples include falls, fractures, and hospitalization). Deprescribing is a proposed solution that aims to highlight medications that can be stopped, reduced, or switched to a safer option, under supervision of a health care provider. We aimed to determine if a quality improvement intervention in the dialysis unit could increase deprescribing compared to usual care. The study took place in 2 outpatient hemodialysis units where usual care involves nurses and nephrologists performing medication reviews twice a year. The intervention was a deprescribing report that was generated with the help of a software tool called MedSafer, along with brochures for patients with information on PIMs they were taking. In the intervention unit, we increased the number of patients who had a medication safely deprescribed by 36.6% more than on the control unit. Although the study was small, a future larger study in dialysis patients might show that a computer software such as MedSafer can prevent harmful complications from taking too many medications.

Electronic Decision Support for Deprescribing in Patients on Hemodialysis: Clinical Research Protocol for a Prospective, Controlled, Quality Improvement Study.

Background: Patients on dialysis are commonly prescribed multiple medications (polypharmacy), many of which are potentially inappropriate medications (PIMs). Potentially inappropriate medications are associated with an increased risk of falls, fractures, and hospitalization. MedSafer is an electronic tool that generates individualized, prioritized reports with deprescribing opportunities by cross-referencing patient health data and medications with guidelines for deprescribing. Objectives: Our primary aim was to increase deprescribing, as compared with usual care (medication reconciliation or MedRec), for outpatients receiving maintenance hemodialysis, through the provision of MedSafer deprescribing opportunity reports to the treating team and patient empowerment deprescribing brochures provided directly to the patients themselves. Design: This controlled, prospective, quality improvement study with a contemporary control builds on existing policy at the outpatient hemodialysis centers where biannual MedRecs are performed by the treating nephrologist and nursing team. Setting: The study takes place on 2 of the 3 outpatient hemodialysis units of the McGill University Health Centre in Montreal, Quebec, Canada. The intervention unit is the Lachine Hospital, and the control unit is the Montreal General Hospital. Patients: A closed cohort of outpatient hemodialysis patients visit one of the hemodialysis centers multiple times per week for their hemodialysis treatment. The initial cohort of the intervention unit includes 85 patients, whereas the control unit has 153 patients. Patients who are transplanted, hospitalized during their scheduled MedRec, or die before or during the MedRec will be excluded from the study. Measurements: We will compare rates of deprescribing between the control and intervention units following a single MedRec. On the intervention unit, MedRecs will be paired with MedSafer reports (the intervention), and on the control unit, MedRecs will take place without MedSafer reports (usual care). On the intervention unit, patients will also receive deprescribing patient empowerment brochures for select medication classes (gabapentinoids, proton-pump inhibitors, sedative hypnotics and opioids for chronic non-cancer pain). Physicians on the intervention unit will be interviewed post-MedRec to determine implementation barriers and facilitators. Methods: The primary outcome will be the proportion of patients with 1 or more PIMs deprescribed on the intervention unit, as compared with the control unit, following a biannual MedRec. This study will build on existing policies aimed at optimizing medication therapy in patients undergoing maintenance hemodialysis. The electronic deprescribing decision support tool, MedSafer, will be tested in a dialysis setting, where nephrologists are regularly in contact with patients. MedRecs are an interdisciplinary clinical activity performed biannually on the hemodialysis units (in the Spring and Fall), and within 1 week following discharge from any hospitalization. This study will take place in the Fall of 2022. Semi-structured interviews will be conducted among physicians on the intervention unit to determine barriers and facilitators to implementation of the MedSafer-supplemented MedRec process and analyzed according to grounded theory in qualitative research. Limitations: Deprescribing can be limited due to nephrologists' time constraints, cognitive impairment of the hemodialyzed patient stemming from their illness and complex medication regimens, and lack of sufficient patient resources to learn about the medications they are taking and their potential harms. Conclusions: Electronic decision support can facilitate deprescribing for the clinical team by providing a nudge reminder, decreasing the time it takes to review and effectuate guideline recommendations, and by lowering the barrier of when and how to taper. Guidelines for deprescribing in the dialysis population have recently been published and incorporated into the MedSafer software. To our knowledge, this will be the first study to examine the efficacy of pairing these guidelines with MedRecs by leveraging electronic decision support in the outpatient dialysis population. Trial registration: This study was registered on Clinicaltrials.gov (NCT05585268) on October 2, 2022, prior to the enrolment of the first participant on October 3, 2022. The registration number is pending at the time of protocol submission.

Contexte: Les patients sous dialyse se voient souvent prescrire de nombreux médicaments (polypharmacie), dont plusieurs médicaments potentiellement inappropriés (MPI). Les MPI sont associés à un risque accru de chutes, de fractures et d'hospitalisations. MedSécure est un outil électronique qui génère des rapports individualisés et classés par ordre de priorité indiquant les possibilités de déprescription. L'outil fonctionne en croisant les données sur la santé des patients et les médicaments sous ordonnance avec des lignes directrices pour la déprescription. Objectifs de l'étude: L'objectif principal est de favoriser la déprescription par rapport aux soins habituels (Medication Reconciliation [MedRecs] ou bilan comparatif des médicaments) chez les patients ambulatoires recevant une hémodialyse d'entretien, en fournissant des rapports MedSécure de déprescription à l'équipe soignante et des brochures encourageant la déprescription aux patients. Conception: Cette étude prospective et contrôlée (témoin contemporain) d'amélioration de la qualité s'appuie sur la politique existante dans les centers d'hémodialyse ambulatoires où un bilan des médicaments (MedRecs) est effectué deux fois par année par le néphrologue traitant et l'équipe de soins infirmiers. Cadre: L'étude a lieu dans deux des trois unités d'hémodialyse ambulatoire du Center universitaire de santé McGill à Montréal (Québec, Canada). L'unité d'intervention est l'Hôpital de Lachine et l'unité témoin est l'Hôpital général de Montréal. Sujets: Une cohorte fermée de patients ambulatoires sous hémodialyse qui visitent plusieurs fois par semaine un center d'hémodialyse pour leurs traitements. La cohorte initiale de l'unité d'intervention compte 85 patients, tandis que l'unité témoin compte 132 patients. Seront exclus les patients qui recevront une greffe, qui seront hospitalisés pendant leur MedRecs ou qui décèderont avant ou pendant le MedRecs. Mesures: Nous comparerons les taux de déprescription entre les unités témoin et d'intervention après un seul MedRecs. Dans l'unité d'intervention, le MedRecs sera associé aux rapports MedSécure (l'intervention); dans l'unité témoin, le MedRecs aura lieu sans rapports MedSécure (soins habituels). Au sein de l'unité d'intervention, les patients recevront également des brochures encourageant la déprescription pour certaines classes de médicaments (gabapentinoïdes, inhibiteurs de la pompe à protons, hypnotiques sédatifs et opioïdes pour les douleurs chroniques non cancéreuses). Les médecins de l'unité d'intervention seront interviewés après le MedRec pour déterminer les obstacles et les facilitateurs à la mise en œuvre. Méthodologie: Le principal critère d'évaluation sera la proportion de patients dans l'unité d'intervention chez qui au moins un MPI sera déprescrit après un MedRec semestriel, par rapport à l'unité témoin. L'étude s'appuiera sur les politiques existantes visant à optimiser la médication chez les patients suivant des traitements d'hémodialyse d'entretien. L'outil électronique d'aide à la décision de déprescription MedSécure sera testé en contexte de dialyse, où les néphrologues sont régulièrement en contact avec les patients. Les MedRecs sont une activité clinique interdisciplinaire effectuée semestriellement sur les unités d'hémodialyse (au printemps et à l'automne) et dans la semaine suivant un congé de l'hôpital. Cette étude aura lieu à l'automne 2022. Des entretiens semi-structurés seront menés avec les médecins de l'unité d'intervention afin d'établir les obstacles et les facilitateurs à la mise en œuvre du processus MedRec complété par MedSécure, puis analysés selon une théorie fondée sur la recherche qualitative. Limites: La déprescription peut être limitée par des contraintes de temps des néphrologues, des troubles cognitifs résultant des maladies et des régimes médicamenteux complexes des patients sous hémodialyse ou par un manque de ressources pour éduquer les patients sur les médicaments qu'ils prennent et leurs méfaits potentiels. Conclusion: Un outil électronique d'aide à la décision peut faciliter le processus de déprescription pour l'équipe clinique en fournissant un rappel, en réduisant le temps nécessaire à l'examen et à l'application des recommandations, et en limitant les obstacles liés au moment et à la façon de réduire le nombre de médicaments. Des lignes directrices sur la déprescription dans la population des patients sous dialyse ont récemment été publiées et incorporées au logiciel MedSécure. À notre connaissance, il s'agit de la première étude à examiner l'efficacité du couplage des lignes directrices avec le MedRecs en tirant parti de l'outil électronique d'aide à la décision en contexte d'hémodialyse ambulatoire.

Deprescribing Opportunities for Hospitalized Patients With End-Stage Kidney Disease on Hemodialysis: A Secondary Analysis of the MedSafer Cluster Randomized Controlled Trial.

Background: End-stage kidney disease patients on dialysis have a substantial risk of polypharmacy due their propensity for comorbidity and contact with the health care system. MedSafer is an electronic decision support tool that integrates patient comorbidity and medication lists to generate personalized deprescribing reports focused on identifying potentially inappropriate medications (PIMs). Objective: To conduct a secondary analysis of patients on regular hemodialysis included in the MedSafer randomized controlled trial to investigate the patterns of polypharmacy and evaluate the efficacy of the MedSafer deprescribing algorithms. Design: Secondary analysis of a cluster randomized clinical trial. Setting: Medical units in 11 acute care hospitals in Canada. Patients: The MedSafer trial enrolled 5698 participants with an expected prognosis of >3 months, age 65 years and older, and on 5 or more daily home medications; 140 participants were receiving chronic hemodialysis. Measurements: The primary outcome of the trial was 30-day adverse drug events (ADEs) post-hospital discharge, and a key secondary outcome was deprescribing. Methods: Control patients received usual care (medication reconciliation), whereas clinicians caring for intervention patients received a MedSafer report that highlighted individualized opportunities for deprescribing. Results: There were 70 patients in each of the control and intervention arms. The median number of home medications was 14 (compared with a median of 10 medications in the general trial population). The most frequent medications observed that were potentially inappropriate were proton pump inhibitors (potentially inappropriate in 55/76 users; 72.4%), diabetes medications in patients with a HBA1C <7.5% (36/65 users; 55.4%), docusate (27/27 users; 100%), gabapentinoids (27/36 users; 75%), and combination antiplatelet/anticoagulants (22/97 users; 22.7%). The proportion of PIMs deprescribed was higher during the intervention phase (28.8% vs 19.3%; absolute increase 9.4% [95% confidence interval 1.3%-17.6%]) compared with the control phase. There was no observed difference in ADEs at 30-day post-discharge between the control and the intervention groups. The most common ADE (n = 3) was gastrointestinal bleeding attributed to antiplatelet agents. Limitations: This was a post hoc exploratory analysis, the original trial did not stratify by hemodialysis status, and the small sample size precludes drawing any definitive conclusions. Conclusion: MedSafer facilitates deprescribing in hospitalized patients on hemodialysis. Larger-scale implementation of decision support software for deprescribing in dialysis and long-term follow-up are likely required to demonstrate an impact on ADEs.

Contexte: Le risque de polypharmacie est important chez les patients atteints d'insuffisance rénale terminale (IRT) sous dialyse en raison de leurs nombreuses comorbidités et de leurs contacts fréquents avec le système de santé. MedSafer est un outil électronique d'aide à la décision qui intègre les comorbidités et la liste de médicaments des patients pour générer des rapports de déprescription personnalisés, axés sur l'identification de médicaments potentiellement inappropriés (MPI). Objectifs: Procéder à une analyse secondaire des patients sous hémodialyse inclus dans l'essai contrôlé randomisé MedSafer dans le but d'examiner les profils de polypharmacie et d'évaluer l'efficacité des algorithmes de déprescription de MedSafer. Type d'étude: Analyse secondaire d'un essai clinique randomisé en grappes. Cadre: Les unités médicales de onze hôpitaux de soins aigus au Canada. Sujets: L'essai MedSafer a inclus 5698 patients de 65 ans et plus avec un pronostic attendu de plus de trois mois et prenant au moins cinq médicaments quotidiennement à domicile; 140 patients étaient traités par hémodialyse chronique. Mesures: Le principal critère d'évaluation de l'essai était la survenue d'événements indésirables attribuables aux médicaments (ÉIM) dans les 30 jours suivant le congé de l'hôpital. Un des principaux critères d'évaluation secondaires était la déprescription. Méthodologie: Les patients du groupe témoin recevaient les soins habituels (bilan comparatif des médicaments) alors qu'un rapport MedSafer soulignant les possibilités de déprescription individuelles était envoyé aux cliniciens qui prenaient en charge les patients du groupe d'intervention. Résultats: Chaque bras de l'essai (témoin et intervention) comptait 70 sujets. Le nombre médian de médicaments pris à domicile était de 14 (comparativement à 10 dans la population générale de l'essai). Les médicaments les plus souvent cités comme potentiellement inappropriés étaient les inhibiteurs de la pompe à protons (55/76 patients; 72,4%), les médicaments contre le diabète chez les patients avec un taux d'HbA1c inférieur à 7,5% (36/65 patients; 55,4%), le docusate (27/27 patients; 100%), les gabapentinoïdes (27/36 patients; 75%) et les antiplaquettaires/anticoagulants combinés (22/97 patients; 22,7%). La proportion de MPI déprescrits était plus élevée dans la phase d'intervention que dans la phase témoin (28,8% c. 19,3%; augmentation absolue de 9,4% [IC 95%: 1,3 à 17,6%]). Aucune différence n'a été observée entre les deux groupes en ce qui concerne les ÉIM dans les 30 jours suivant le congé de l'hôpital. Une hémorragie gastro-intestinale attribuable aux agents antiplaquettaires était l'événement indésirable le plus fréquent (n = 3). Limites: Il s'agit d'une analyse exploratoire a posteriori. L'essai initial n'a pas été stratifié selon le status en hémodialyse. La faible taille de l'échantillon ne permet pas de tirer des conclusions définitives. Conclusion: MedSafer facilite la déprescription chez les patients hospitalisés qui reçoivent des traitements d'hémodialyse. Pour démontrer un éventuel impact sur les événements indésirables attribuables aux médicaments, il apparaît nécessaire de faire un suivi à plus long terme et à plus grande échelle du logiciel d'aide à la décision de déprescription en contexte de dialyse.

Term delivery after in vitro fertilization in a patient with cloacal malformation.

BACKGROUND: Cloacal malformation is extremely rare, occurring in approximately 1 in 25 000 births. It frequently has associated Müllerian anomalies that require surgical correction. CASE: We describe here a patient with cloacal malformation, solitary kidney, bilateral fallopian tube obstruction, and didelphic uterus who required in vitro fertilization to conceive. CONCLUSION: Careful surveillance resulted in an excellent pregnancy outcome with term delivery.

Primary hyperaldosteronism presenting as persistent postpartum hypertension: Illustrative case and systematic review.

We present a case of persistent postpartum hypertension found to be secondary to primary hyperaldosteronism in a woman with a history of recurrent hypertensive disorders of pregnancy and associated fetal complications. Our systematic review revealed only 18 cases of primary aldosteronism diagnosed in women with postpartum hypertension, suggesting that this disorder is under-studied in the postpartum period. A review of these cases suggests that women with primary hyperaldosteronism commonly present with hypertensive disorders of pregnancy, but may only be identified de novo postpartum. However, a high index of suspicion is needed to diagnose primary hyperaldosteronism in the postpartum period, guided by a woman's obstetric history.

Hypertension in pregnancy.

Hypertensive disorders of pregnancy are the most common medical disorders of pregnancy and are associated with increased maternal and perinatal risks. The pathophysiology, diagnosis, and treatment are herein reviewed for chronic hypertension, preeclampsia, gestational hypertension, and severe hypertension. The benefits and risks of treating mild, moderate, and severe hypertension are discussed. A variety of oral and parenteral therapies are approved for the treatment of hypertension in pregnancy; methyldopa, labetalol, and nifedipine have been used safely in pregnancy, as has hydrochlorothiazide in those already taking this medication before conception. Angiotensin-converting enzyme inhibitors and angiotensin receptor blockers are contraindicated in pregnancy because of adverse fetal effects, and atenolol should be avoided due to concerns with fetal growth. Severe hypertension >160/110 mmHg may require parenteral therapy, and treatment with intravenous labetalol now supplants the use of hydralazine. Women may remain hypertensive for a period postpartum and require treatment for a short interval. Early or severe preeclampsia warrants workup postpartum for secondary causes. Pregnancy induced hypertension or preeclampsia are emerging as risk factors for future cardiovascular risk.

New Evidence in the Management of Chronic Hypertension in Pregnancy.

Chronic hypertension complicates 1% to 5% of all pregnancies, but debate continues regarding the benefits of lowering blood pressure in pregnancy as well as the optimal blood pressure targets. Women with chronic hypertension are at significant risk for maternal and fetal morbidity and mortality, yet it remains unclear whether antihypertensive treatment during pregnancy lowers these risks. Severe hypertension (systolic ≥ 160 mm Hg) should be treated, but there is considerable variability in the approach to mild-to-moderate hypertension (140-159/90-109 mm Hg). The recently published CHIPS (Control of Hypertension in Pregnancy Study) trial is an important effort to attempt to determine treatment goals in mild to moderate pregnancy hypertension. The risks and benefits of tight versus less tight control of blood pressure in nonproteinuric hypertensive women, most of whom had pre-existing hypertension, were evaluated. A main finding was an increased risk of severe hypertension (adjusted odds ratio, 1.8) when blood pressure was not tightly controlled. In this review, general management of chronic hypertension in pregnancy is discussed, including changes in treatment that may be appropriate in light of new clinical trial data.

Shelter-based managed alcohol administration to chronically homeless people addicted to alcohol.

BACKGROUND: People who are homeless and chronically alcoholic have increased health problems, use of emergency services and police contact, with a low likelihood of rehabilitation. Harm reduction is a policy to decrease the adverse consequences of substance use without requiring abstinence. The shelter-based Managed Alcohol Project (MAP) was created to deliver health care to homeless adults with alcoholism and to minimize harm; its effect upon consumption of alcohol and use of crisis services is described as proof of principle. METHODS: Subjects enrolled in MAP were dispensed alcohol on an hourly basis. Hospital charts were reviewed for all emergency department (ED) visits and admissions during the 3 years before and up to 2 years after program enrollment, and the police database was accessed for all encounters during the same periods. The results of blood tests were analyzed for trends. A questionnaire was administered to MAP participants and staff about alcohol use, health and activities of daily living before and during the program. Direct program costs were also recorded. RESULTS: Seventeen adults with an average age of 51 years and a mean duration of alcoholism of 35 years were enrolled in MAP for an average of 16 months. Their monthly mean group total of ED visits decreased from 13.5 to 8 (p = 0.004); police encounters, from 18.1 to 8.8 (p = 0.018). Changes in blood test findings were nonsignificant. All program participants reported less alcohol consumption during MAP, and subjects and staff alike reported improved hygiene, compliance with medical care and health. INTERPRETATION: A managed alcohol program for homeless people with chronic alcoholism can stabilize alcohol intake and significantly decrease ED visits and police encounters.

Shelter-based convalescence for homeless adults.

OBJECTIVES: Homelessness is associated with increased hospital costs and length of stay, and medical or surgical conditions are typically complicated by secondary diagnoses of substance abuse or mental illness. Convalescence care to provide timely treatment has not been analyzed. This is a retrospective study of diagnoses and utility of shelter-based convalescence in a cohort of homeless subjects. METHODS: A 20-bed shelter-based unit providing up to 3 months stay post hospital discharge, or for treatment of addictions or for those too ill to remain in the general shelter was studied. Charting was by the use of an electronic health record developed for the project. Demographics, reason for admission and outcomes are retrospectively described. RESULTS: 140 men had 181 admissions from July 2000-April 2003; 23.8% were post hospital discharge, 57.4% were from the general shelter. Average length of stay was 40 days. 83.4% were treated for a medical or surgical condition, 83.6% for psychiatric disease and 29.8% for addictions. Medication adherence was >80% in the majority. During admission, 20% obtained a new health card, 43.6% a new drug card, 89.3% received transportation to appointments, 60% applied for housing and 24.3% obtained housing. CONCLUSION: A shelter-based convalescence unit can provide health care to homeless persons, treat medical and mental illness, ensure adherence to treatment regimes, decrease substance abuse and assist with housing.

Antihypertensive therapy in pregnancy.

The benefits of antihypertensive therapy in pregnancy remain uncertain. Blood pressure control to prevent or correct severe hypertension can avert maternal target organ damage and may allow obstetricians to prolong pregnancy or avoid hospitalization. Several factors limit the conclusions derived from systematic review of the available studies, including failure to distinguish among women with preeclampsia, gestational hypertension, or whose hypertension antedated pregnancy. As well, the application of consensus guidelines is limited by the unfortunate tendency to measure blood pressure by use of oscillometric devices rather than auscultation. We review the basis for using specific antihypertensive drugs in pregnancy and highlight important shortcomings in therapeutic knowledge that should be addressed in future studies.

Management of chronic kidney disease and dialysis in homeless persons.

End-stage renal disease and dialysis are complicated illnesses to manage in homeless persons, who often suffer medical comorbidities, psychiatric disease, cognitive impairment and addictions; descriptions of this population and management strategies are lacking. A retrospective review of dialysis patients who were homeless or unstably housed was undertaken at an urban academic Canadian center from 2001 to 2011. Electronic hospital records were analyzed for demographic, housing, medical, and psychiatric history, dialysis history, adherence to treatment, and outcomes. Two detailed cases of homeless patients with chronic kidney disease are presented. Eleven homeless dialysis patients with a mean age of 52.7±12.3 years, mostly men and mostly from minority groups were dialyzed for 41.1±29.2 months. Most resided permanently in shelters, eventually obtained fistula access, and were adherent to dialysis schedules. Patients were often nonadherent to pre-dialysis management, resulting in emergency starts. Many barriers to care for homeless persons with end-stage kidney disease and on dialysis are identified, and management strategies are highlighted. Adherence is optimized with shelter-based health care and intensive team-oriented case management.

Stage 1 chronic kidney disease in pregnancy.

Stage 1 chronic kidney disease (CKD) is defined by normal renal function, an estimated glomerular filtration rate of >90 mL/minute and abnormalities on urinalysis or ultrasound. These patients when pregnant are commonly seen, and diagnoses include diabetic nephropathy, glomerulonephritis, nephrolithiasis, reflux nephropathy, polycystic kidney disease and lupus nephritis. Underlying renal disease may also first become apparent in pregnancy, posing a diagnostic challenge. Patients tend to do well, but all need to be closely monitored particularly for hypertension and pre-eclampsia, which are more common in patients with stage 1 CKD overall. Relevant pregnancy outcomes may be divided into maternal (e.g. renal deterioration, nephrolithiasis, lupus flare, urinary infection or pyelonephritis), fetal (e.g. growth restriction, fetal death or stillbirth) and obstetric (e.g. hypertension, pre-eclampsia, preterm delivery, thrombosis). Specific diagnoses, their clinical features, management strategies and prognosis are reviewed.

Antihypertensive drugs in pregnancy.

Blood pressure targets and medications that are safe differ in pregnant women compared with nonpregnant individuals. The principles of treatment for mild, moderate, and severe hypertension in pregnancy, chronic versus gestational versus preeclampsia, and women hypertensive at term versus remote from term are reviewed. The choice of antihypertensive drugs also is discussed; methyldopa, labetalol, and nifedipine, among others, appear safe for use in pregnancy, whereas angiotensin converting enzyme inhibitors and angiotensin receptor blockers should be avoided. The management of increased blood pressure in the postpartum period, and agents to use in lactation, are also discussed.

Postpartum course of gestational hypertension and preeclampsia.

BACKGROUND: New onset hypertension (gestational hypertension and preeclampsia) complicates 6-8% of pregnancies and usually resolves postpartum, but the time to normalization of blood pressure (BP) in the postpartum period is not known. METHODS: We performed a retrospective cohort study of previously normotensive women who developed gestational hypertension or preeclampsia, and determined the number of weeks postpartum to BP normalization. RESULTS: 62 women with no history of hypertension prior to pregnancy were included, age 35.3 +/- 7.1 years. Hypertension developed at gestational age 15-40 weeks; 45% developed hypertension within 3 days of delivery, 52% developed hypertension 1-22 weeks prior to delivery, and 5% had onset only postpartum. Infants were born at gestational age 35.15 +/- 4.7 weeks. Average BP at treatment initiation was 162/95 mm Hg. Preeclampsia and/or HELLP syndrome was diagnosed in 48%. Most were treated with BP medication in the puerperium. In those whose BP normalized, time to normalization was 5.4 +/- 3.7 weeks. Those who remained hypertensive beyond 6 months (19%) were older (38.8 years vs. 34.4, p = 0.018). Three women had secondary hypertension; primary hyperaldosteronism was diagnosed in 2 women and renovascular hypertension in 1. CONCLUSION: Hypertension presenting in pregnancy normalized postpartum in 81% of this cohort, in most by 3 months. Those who remained hypertensive at 6 months postpartum tended to be older than patients whose BP normalized. Secondary hypertension was detected and surgically corrected in 3 patients. Further studies are needed to characterize those most likely to benefit from postpartum antihypertensive treatment and to guide management.

Pregnancy-associated parvovirus B19 infection causing postinfectious glomerulonephritis.

BACKGROUND: Postinfectious glomerulonephritis due to parvovirus B19 during pregnancy is not described in the literature. OBJECTIVE: A case and renal biopsy of postinfectious glomerulonephritis due to parvovirus B19 during pregnancy is presented. DISCUSSION AND CONCLUSIONS: The patient contracted "fifth disease," parvovirus B19, in the 10th week of pregnancy, and 2 weeks later developed hypertension, nephrotic range proteinuria, pleural effusions, and evidence of pure red cell aplasia. Serum parvovirus B19 IgM was positive; a renal biopsy was performed, revealing diffuse proliferative glomerulonephritis with immunofluorescent and electron microscopic changes consistent with postinfectious glomerulonephritis. Renal, hemodynamical, and hematological parameters returned to normal by the 16th week gestation, and the pregnancy proceeded without further complication to the mother, with term delivery of a healthy infant.

Management of renal disease in pregnancy.

Although renal disease in pregnancy is uncommon, it poses considerable risk to maternal and fetal health. This article discusses renal physiology and assessment of renal function in pregnancy and the effect of pregnancy on renal disease in patients with diabetes, lupus, chronic glomerulonephritis, polycystic kidney disease, and chronic pyelonephritis. Renal diseases occasionally present for the first time in pregnancy, and diagnoses of glomerulonephritis, acute tubular necrosis, hemolytic uremic syndrome, and acute fatty liver of pregnancy are described. Finally, therapy of end-stage renal disease in pregnancy, dialysis, and renal transplantation are reviewed.

Intensifying renal replacement therapy during pregnancy: the role for nocturnal home hemodialysis.

Fertility among women receiving conventional hemodialysis or peritoneal dialysis is very low. For those able to conceive it appears that infant survival is poor, and prematurity and its related complications are still commonplace. Nocturnal hemodialysis (NHD) is a form of intensive, self-administered hemodialysis whereby patients receive 3-4 times the duration of conventional hemodialysis resulting in superior removal of uremic toxins compared to traditional dialysis modalities. NHD has been associated with increased fertility, infants with higher birth weights born at more advanced gestational ages, and fewer maternal and fetal complications. These encouraging results suggest a greater role for much more intensive dialysis in pregnancy.