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Related Concept Videos

Mitral Valve Prolapse III: Nursing Management01:19

Mitral Valve Prolapse III: Nursing Management

The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
Mitral Stenosis III: Medical Management01:26

Mitral Stenosis III: Medical Management

Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular tachycardia.
Mitral Stenosis IV: Nursing Management01:27

Mitral Stenosis IV: Nursing Management

A comprehensive nursing assessment is essential for patients with valvular heart disease, which involves any dysfunction of the heart valves that could impact blood flow and overall heart function.Subjective Data Collection:Chief Complaint and Present Illness: Start with the patient's primary concerns, focusing on the onset, duration, and progression of cardiac symptoms such as dyspnea, fatigue, chest pain, and palpitations.Past Medical History: Collect detailed information on any previous...
Mitral Regurgitation III: Medical Management01:25

Mitral Regurgitation III: Medical Management

Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
Mitral Regurgitation IV: Nursing Management01:28

Mitral Regurgitation IV: Nursing Management

Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...

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Related Experiment Video

Updated: Jun 11, 2026

Comprehensive Evaluation of the Effectiveness and Safety of Placenta-Targeted Drug Delivery Using Three Complementary Methods
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Published on: September 10, 2018

Maintenance tocolytics for preterm symptomatic placenta previa: a review.

Diwata A Bose1, Barbara G Assel, James B Hill

  • 1Aurora Health Care, Milwaukee, Wisconsin, USA.

American Journal of Perinatology
|July 8, 2010
PubMed
Summary

Prolonged tocolytics for preterm labor with placenta previa may extend pregnancy, but evidence is limited. Current guidelines suggest limiting tocolytic use to 48 hours due to insufficient data.

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Published on: September 5, 2011

Area of Science:

  • Obstetrics and Gynecology
  • Maternal-Fetal Medicine
  • Perinatal Research

Background:

  • Preterm labor with placenta previa presents significant risks to both mother and fetus.
  • The efficacy of prolonged tocolytic therapy in managing symptomatic preterm placenta previa remains uncertain.
  • Current clinical practice often limits tocolytic use to 48 hours, but evidence supporting this duration is debated.

Purpose of the Study:

  • To evaluate whether prolonged tocolytic administration (≥48 hours) in cases of symptomatic preterm placenta previa improves perinatal outcomes.
  • To synthesize evidence from available studies regarding the impact of tocolytic duration on pregnancy prolongation and perinatal results.

Main Methods:

  • A systematic literature search was conducted in OVID MEDLINE and Cochrane Databases from January 1950 to January 2009.
  • Data from identified studies, including retrospective studies and a randomized clinical trial, were analyzed.
  • Odds ratios (OR) and 95% confidence intervals (CI) were calculated to assess the effect of tocolytics.

Main Results:

  • A single randomized clinical trial (RCT) suggested that continued tocolytics could prolong pregnancy by over 7 days (OR 3.10, 95% CI 1.38 to 6.96).
  • However, combined results from two retrospective studies did not confirm this prolongation (OR 1.19, 95% CI 0.63 to 2.28).
  • The included RCT exhibited inadequate compliance with the Consolidated Standards of Reporting Trials (CONSORT) statement.

Conclusions:

  • The available evidence on the benefits of prolonged tocolytic therapy for preterm labor with placenta previa is conflicting and of low quality.
  • The single RCT suggesting a benefit was methodologically limited.
  • Further high-quality, well-designed randomized clinical trials are necessary to definitively determine the optimal duration of tocolytics in this clinical scenario.
  • Pending such evidence, limiting tocolytic use to 48 hours is a prudent approach.