Adults

What Parents Need to Know About Screen Time and Language Development

Author/s: 
Lillian E. Sutton, Lindsay A. Thompson

Early childhood exposure to screen time is becoming more common as mobile devices and televisions are part of most households. That is the same time when children, especially those in their first 3 years, are having an explosion of language and acquiring their speech and language skills. Screen time, especially on mobile devices, can be useful to keep children entertained at home and on the go. However, children who have more screen time may have fewer chances to talk with others, affecting their speech and language development. Current guidelines recommend that children younger than 18 months should not have any screen exposure, and children aged 2 to 5 years should be limited to 1 hour of screen time per day.

Current studies show that screen time keeps children from hearing adult words. Children and parents both vocalize or talk less when children engage with screens. There are also fewer back-and-forth conversations between children and caregivers. Spending more time with screens, even background television, may result in reductions in speech. Having a language-rich home environment promotes strong language skills, school readiness, and healthy brain development. If a child does engage with screens, there are ways to support speech development. Some ways to watch and use screens are better than others.

Secondary Prevention after Ischemic Stroke

Author/s: 
Karen L. Furie, Peter J. Kelly

The risk of recurrent ischemic stroke can be reduced by managing modifiable risk factors and instituting a regimen of mechanism-specific secondary stroke prevention. Strategies for secondary prevention should be instituted as early as possible. Poststroke monitoring of risk metrics, lifestyle behaviors, and medication recommendations is of key importance.

IgA Nephropathy in Adults: A Review

Author/s: 
Sinead Stoneman, Jia Wei Teh, Michelle Marie O’Shaughnessy

Importance IgA nephropathy (IgAN) is a chronic kidney disease involving deposition of IgA-containing immune complexes in the glomerulus, causing glomerular inflammation and scarring. It is the most common immune-mediated glomerular disease worldwide, and affects an estimated 198 887 to 208 184 persons in the US. Up to 50% of patients with IgAN develop kidney failure within 10 years of diagnosis.

Observations IgAN typically presents with nephritic syndrome and usually occurs in younger adults, with a mean age at diagnosis of 34 to 45 years. Incidence is highest in East Asia. Approximately 60% of cases are detected incidentally with hematuria or proteinuria on urinalysis. Up to 30% of patients present with episodic visible hematuria, often concomitantly with an upper respiratory or gastrointestinal tract infection (synpharyngitic hematuria). Less common presentations include nephrotic syndrome (<5%) and rapidly progressive glomerulonephritis (<5%). When IgAN is suspected (due to hematuria, proteinuria, or reduced kidney function), initial workup should include quantification of proteinuria and assessment for other causes of nephritic syndrome (eg, lupus nephritis). Adults with suspected IgAN and proteinuria greater than or equal to 0.5 g per day should undergo kidney biopsy. The diagnosis of primary IgAN is based on presence of IgA-dominant immune deposits in the glomerular mesangium after excluding other causes of this histologic appearance, ie, IgA vasculitis, IgA-dominant infection-related glomerulonephritis, and secondary IgAN from diseases such as cirrhosis, inflammatory bowel disease, celiac disease, infection (eg, viral hepatitis), and autoimmune diseases (eg, axial spondyloarthritis). Based on the Kidney Disease: Improving Global Outcomes 2025 clinical practice guideline for the management of IgAN, treatment for patients with proteinuria greater than 0.5 g per day includes behavioral modifications (eg, dietary sodium <2 g/d, smoking cessation, weight control, exercise), antihypertensive medications for goal blood pressure less than 120/70 mm Hg, and therapies to reduce the formation of IgA-containing immune complexes (eg, targeted-release budesonide), decrease glomerular injury (eg, systemic glucocorticoids, iptacopan), and manage existing IgAN-induced nephron loss (eg, renin-angiotensin system inhibitor or dual endothelin angiotensin receptor antagonist [eg, sparsentan] alone or in combination with a sodium-glucose cotransporter 2 inhibitor).

Conclusions and Relevance IgAN is the leading cause of immune-mediated glomerular disease worldwide. Patients with suspected IgAN and proteinuria greater than or equal to 0.5 g per day should undergo kidney biopsy to confirm the diagnosis. Treatment of IgAN includes behavioral modifications, blood pressure management, and therapies to decrease formation of IgA-containing immune complexes (eg, targeted-release budesonide), reduce immune complex–mediated glomerular injury (eg, systemic glucocorticoids, iptacopan), and manage IgAN-induced nephron loss (eg, renin-angiotensin system inhibitor, dual endothelin angiotensin receptor antagonist, and sodium-glucose cotransporter 2 inhibitor).

Does This Patient Have Volume Overload? The Rational Clinical Examination

Author/s: 
Benjamin Drum, Bryce La Course, Mark Kelly, Audrey York, Emily Worrall, Jennifer Martins, Stacy Johnson, Edmund A Liles Jr

Importance: Accurate assessment of intravascular volume facilitates management decisions about fluid management in patients with volume overload.

Objective: To identify the most accurate clinical examination, radiographic, and laboratory findings for assessing volume overload in nonintubated patients.

Data sources and study selection: MEDLINE was searched (1946 to January 6, 2026) to identify peer-reviewed English-language studies about the diagnostic accuracy of the clinical examination of spontaneously breathing patients with intravascular volume overload.

Data extraction and synthesis: Three authors independently extracted data for each finding and calculated sensitivity, specificity, and likelihood ratios (LRs). A 2-level mixed logistic regression model was used to pool estimates.

Results: Forty studies, involving 11 490 adult patients, were included, with a prevalence of volume overload of 35% to 69%. Thirty-three of those studies evaluated patients with dyspnea. Prevalence of volume overload was more likely when the physical examination revealed jugular venous distention with the highest point of pulsation more than 3 cm in a vertical line above the sternal angle (LR, 4.1 [95% CI, 2.9-5.6]; specificity, 92%), lower extremity edema (LR, 2.2 [95% CI, 1.5-3.1]; specificity, 80%), or crackles on auscultation (LR, 2.7 [95% CI, 1.7-4.5]; specificity, 81%). Vascular congestion on chest radiography increased the likelihood of intravascular volume overload (LR, 5.9 [95% CI, 2.9-12.0]; specificity, 91%). Point-of-care ultrasonography that identified bilateral pulmonary B-lines suggested volume overload (LR, 4.0 [95% CI, 2.6-6.1]; specificity, 77%), and absence of pulmonary B-lines made volume overload unlikely (LR, 0.09 [95% CI, 0.04-0.23]; sensitivity, 93%). Inferior vena cava collapsibility index of less than 50% increased the likelihood of volume overload (LR, 3.9 [95% CI, 2.5-6.1]; specificity, 79%), and a collapsibility index of at least 50% made it less likely (LR, 0.22 [95% CI, 0.11-0.45]; sensitivity, 82%). Point-of-care ultrasonographic measurement of jugular venous pressure (JVP; >8 cm) also increased the likelihood of volume overload (LR, 2.8 [95% CI, 2.2-3.5]; specificity, 71%), although JVP of 8 cm or less identified patients less likely to have volume overload (LR, 0.26 [95% CI, 0.20-0.33]; sensitivity, 81%). A plasma brain-type natriuretic peptide (BNP) level of 100 ng/mL or higher was the single best test to identify those most likely to have volume overload (LR, 6.9 [95% CI, 2.4-20.4]; specificity, 87%), and a normal value made it less likely (LR, 0.14 [95% CI, 0.08-0.24]; sensitivity, 87%).

Conclusions and relevance: A BNP level of 100 ng/mL or higher and presence of vascular congestion on chest radiography may be the most useful tests to identify patients with volume overload. Absence of pulmonary B-lines using point-of-care ultrasonography or BNP levels of less than 100 ng/mL may be most useful to exclude volume overload.

Pertussis Infection in Adults

Author/s: 
Paul B. Cornia, Benjamin A. Lipsky

Pertussis, or whooping cough, is a highly contagious respiratory illness caused by Bordetella pertussis, a fastidious gram-negative coccobacillus that is a human pathogen without known animal or environmental reservoirs. There are 8 additional known Bordetella species, 3 of which can cause respiratory illness in humans: B parapertussis (which causes infection clinically indistinguishable from pertussis), B bronchiseptica, and B holmesii.

Calcium pyrophosphate deposition disease

Author/s: 
Timothy S.H. Kwok, Gregory Choy

Calcium pyrophosphate deposition (CPPD) disease is caused by CPP crystal accumulation in musculoskeletal tissues, leading to inflammation
Symptomatic CPPD disease (formerly known as “pseudogout”) is more common in older than younger adults and typically affects joints with previous damage. Chondrocalcinosis visible on radiographs affects 10% of adults and 50% of those older than 80 years, but most people are asymptomatic and findings are noted incidentally.1

The most common presentation is acute inflammatory monoarthritis affecting the wrists or knees, which resolves within 4 weeks
Extra-articular structures can also be affected, leading to acute inflammatory tendinitis. Crowned dens syndrome comprises 5% of CPPD disease presentations and can mimic bacterial meningitis, manifesting with acute cervical neck pain, fever, and elevated inflammatory markers with CPPD at C1 to C2, seen on computed tomography. The chronic (> 3 mo) inflammatory phenotype presents with hand or wrist symmetric polyarthritis, or with recurrent flares, and can be misdiagnosed as seronegative rheumatoid arthritis. Calcium pyrophosphate deposition disease and osteoarthritis can co-exist — underlying CPPD disease should be considered in patients with osteoarthritis at atypical locations (e.g., metacarpophalangeal joints, wrists, ankles, shoulders, elbows).2

Diagnosis can be confirmed with CPP crystals identified from synovial fluid, or the presence of the crowned dens syndrome
Although used for research, the 2023 Classification Criteria have high sensitivity (99.2%) and specificity (92.5%), thereby providing a diagnostic framework.2 Supportive diagnostic features include acute knee or wrist inflammatory arthritis in an older adult, osteoarthritis at atypical areas, or CPPD on imaging.3

Patients younger than 60 years at diagnosis should be assessed for associated metabolic diseases
Investigations for secondary causes of CPPD disease include calcium (hypercalcemia), parathyroid hormone (hyperparathyroidism), ferritin, transferrin saturation (hemochromatosis), magnesium (hypomagnesemia), and alkaline phosphatase (hypophosphatasia).2

Corticosteroids, colchicine, and nonsteroidal antiinflammatory drugs can treat acute flares4
Inflammatory arthritis lasting more than 3 months or recurrent flares (> 2/yr) should prompt rheumatology referral for consideration of chronic suppressive colchicine, hydroxychloroquine, or methotrexate (Appendix 1, available at www.cmaj.ca/lookup/doi/10.1503/cmaj.250933/tab-related-content).5

What Is Ovarian Cancer?

Author/s: 
Rebecca Voelker

Ovarian cancer is a malignancy of the ovary, the female reproductive organ that produces eggs.

How Common Is Ovarian Cancer?
Among women worldwide, ovarian cancer is the eighth most common malignancy and cause of cancer death. In 2022, ovarian cancer was diagnosed in about 325 000 individuals and caused 206 839 deaths worldwide. In 2025, it is estimated that 20 890 US women will be diagnosed with ovarian cancer and 12 730 will die of it.1

What Are the Risk Factors for Ovarian Cancer?
Risk factors for ovarian cancer include older age (the most common age at diagnosis is 63 years), a family history of breast cancer or ovarian cancer, endometriosis (a chronic inflammatory disease in which uterine lining cells are found outside of the uterus), and never having given birth. About 25% of ovarian cancers are due to inherited genetic variants, primarily in BRCA1 and BRCA2 genes.

What Are the Symptoms of Ovarian Cancer?
At the time of diagnosis, most patients with ovarian cancer have symptoms such as abdominal pain, bloating, urgent or frequent urination, and/or increased abdominal size. Signs and symptoms of advanced ovarian cancer may include a mass in the abdominal area, weight loss, and trouble breathing due to abdominal swelling or from fluid surrounding the lungs.

How Is Ovarian Cancer Diagnosed and Staged?
Ovarian cancer is often diagnosed and staged based on findings from a pelvic ultrasound, abdominal computed tomography (CT) scan, and/or abdominal magnetic resonance imaging (MRI). Total-body positron emission tomography (PET) can detect cancer that has spread to more distant sites in the body. To help with staging, some patients may undergo diagnostic laparoscopy, a minimally invasive surgical procedure, in which clinicians look for a tumor within the abdomen and perform biopsies to assess for ovarian cancer.

Stage I ovarian cancer is limited to the ovary or fallopian tube. Stage II cancer has spread beyond the ovaries and fallopian tubes but is still confined within the pelvis. Stage III cancer involves sites outside the pelvis such as nearby lymph nodes or other areas of the abdomen. Stage IV cancer involves organs or tissues outside the abdominal cavity, such as the liver, spleen, or lungs.

How Is Ovarian Cancer Treated?
All patients diagnosed with ovarian cancer should undergo genetic testing, including for BRCA1/2 variants, to help guide treatment and counseling. First-line treatment for patients with early-stage (I and II) ovarian cancer is surgery, including removal of both ovaries and fallopian tubes, the uterus, lymph nodes, and fatty tissue covering the abdominal organs, followed by chemotherapy. Patients with stage I cancer who are considering having children may undergo more limited surgery with removal of the cancerous ovary and fallopian tube, leaving in place the other ovary and fallopian tube and the uterus.

Treatment for patients with stages III and IV (advanced) ovarian cancer includes both surgery and chemotherapy, often combined with individualized targeted therapies such as bevacizumab and/or poly–ADP ribose polymerase (PARP) inhibitors.

Prognosis After Treatment for Ovarian Cancer
Patients with stages I and II ovarian cancer have a 5-year overall survival rate of 70% to 95%. The 5-year overall rate for stages III and IV ovarian cancer is 10% to 40%. However, 5-year survival is about 70% among patients with advanced-stage ovarian cancer who have BRCA genetic variants and are treated with PARP inhibitors.

Pharmacologic Treatment of Perinatal Depression

Author/s: 
Emily S. Miller, S. Karlene Cunningham, Lauren M. Osborne

Approximately 1 in 7 individuals are affected by perinatal depression, defined as a depressive episode occurring during pregnancy or within 12 months after delivery. Although the diagnostic criteria are similar to those of major depressive disorder, perinatal depression may also include symptoms such as difficulty forming an emotional attachment with the fetus or infant, persistent doubts about parenting abilities, and intrusive thoughts of harm to self or infant.1 Mental health conditions are leading contributors to maternal mortality in the US; among reporting states, the rate of death from perinatal suicide ranges from 4.2 to 21.4 per 100 000 pregnancies.2 Untreated or undertreated perinatal depression increases other maternal risks, including limited engagement in care, impaired relationships, substance use, preeclampsia, and suicide, as well as fetal or neonatal risks, including preterm birth, low birth weight, and disrupted attachment with long-term developmental consequences.3 Individuals from marginalized communities, such as those who are non–English speaking, uninsured, or geographically isolated, experience a higher prevalence of perinatal depression and are at increased risk of underdiagnosis and undertreatment.3

Risk factors for perinatal depression include a personal or family history of depression, abuse, stressful life events, low socioeconomic status, adolescent or single parenthood, and pregnancy complications, such as preterm birth or pregnancy loss. Each factor individually confers only a small increase in risk, making accurate prediction based on clinical factors challenging.4 Therefore, to facilitate early identification and treatment, universal screening during and after pregnancy is recommended. The American College of Obstetricians and Gynecologists (ACOG) recently issued 2 Clinical Practice Guidelines on perinatal mental health, 1 on screening and diagnosis5 and 1 on treatment and management,3 highlighting opportunities for obstetricians to address existing health gaps.

What Should I Know About Stopping Routine Cancer Screening?

Author/s: 
Zhang, Grace, Incze, Michael

Cancer screening tests are not perfect. Test results may suggest cancer when there is none (false-positive screen). They can also miss cancer even if it is present (false-negative screen). False-positive results can lead to emotional stress and more testing without improving health. Screening tests may also lead to overdiagnosis. Overdiagnosis is when screening tests find slow-growing forms of cancer that would never have caused symptoms or affected health if left undetected.

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