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Chronic anal pain: A review of causes, diagnosis, and treatment

Author/s: 
Knowles, C. H., Cohen, R. C.

Chronic anal pain is diffi cult to diagnose and treat, especially with no obvious anorectal cause apparent on clinical examination. This review identifi es 3 main diagnostic
categories for chronic anal pain: local causes, functional
anorectal pain, and neuropathic pain syndromes. Conditions covered within these categories include proctalgia
fugax, levator ani syndrome, pudendal neuralgia, and coccygodynia. The signs, symptoms, relevant diagnostic tests,
and main treatments for each condition are reviewed.

Keywords 
Anal Pain Causes diagnosis treatment chronic pain

Diagnosis and Management of Infectious Diarrhea

Author/s: 
Hamilton, Keith W., Cifu, Adam S.

Infectious diarrhea is the fifth leading cause of death worldwide. In the United States, 179 million cases of acute diarrhea occur per year. Most diarrheal illnesses are self-limited and do not require evaluation or treatment beyond supportive care such as rehydration. Some infections do require antimicrobial therapy, and appropriate use of diagnostic tests and treatments may potentially minimize unnecessary costs, decrease adverse events, optimize clinical outcomes, and limit antibiotic resistance.

Keywords 
infectious diarrhea stool testing

Clinically Diagnosing Pertussis-associated Cough in Adults and Children: CHEST Guideline and Expert Panel Report

Author/s: 
Moore, Abigail, Harnden, Anthony, Grant, Cameron C., Patel, Sheena, Irwin, Richard S.

BACKGROUND:

The decision to treat a suspected case of pertussis with antibiotics is usually based on a clinical diagnosis rather than waiting for laboratory confirmation. The current guideline focuses on making the clinical diagnosis of pertussis-associated cough in adults and children.

METHODS:

The American College of Chest Physicians (CHEST) methodologic guidelines and the Grading of Recommendations, Assessment, Development, and Evaluation framework were used. The Expert Cough Panel based their recommendations on findings from a systematicreview that was recently published on the topic; final grading was reached by consensus according to Delphi methodology. The systematic review was carried out to answer the Key Clinical Question: In patients presenting with cough, how can we most accurately diagnose from clinical features alone those who have pertussis-associated cough as opposed to other causes of cough?

RESULTS:

In adults, after pre-specified meta-analysis exclusions, pooled estimates of sensitivity and specificity were generated for only 4 clinical features: paroxysmal cough, post-tussive vomiting, inspiratory whooping, and absence of fever. Both paroxysmal cough and absence of fever had high sensitivity (93.2% [95% CI, 83.2-97.4] and 81.8% [95% CI, 72.2-88.7], respectively) and low specificity (20.6% [95% CI, 14.7-28.1] and 18.8% [95% CI, 8.1-37.9]). Inspiratory whooping and posttussive vomiting had a low sensitivity (32.5% [95% CI, 24.5-41.6] and 29.8% [95% CI, 18.0-45.2]) but high specificity (77.7% [95% CI, 73.1-81.7] and 79.5% [95% CI, 69.4-86.9]). In children, after pre-specified meta-analysis exclusions, pooled estimates of sensitivity and specificity were generated for only 1 clinical feature in children (0-18 years): posttussive vomiting. Posttussive vomiting in children was only moderately sensitive (60.0% [95% CI, 40.3-77.0]) and specific (66.0% [95% CI, 52.5-77.3]).

CONCLUSIONS:

In adults with acute (< 3 weeks) or subacute (3-8 weeks) cough, the presence of whooping or posttussive vomiting should rule in a possible diagnosis of pertussis, whereas the lack of a paroxysmal cough or the presence of fever should rule it out. In children with acute (< 4 weeks) cough, posttussive vomiting is suggestive of pertussis but is much less helpful as a clinical diagnostic test. Guideline suggestions are made based upon these findings and conclusions.

Keywords 
cough evidence-based medicine guidelines infectious disease diagnosis

Diagnosis and Management of Nonalcoholic Liver Disease

Author/s: 
Paul, Sonali, Davis, Andrew M.

MAJOR RECOMMENDATIONS

• Patients with incidental hepatic steatosis detected on imaging who lack any liver-related symptoms or signs and have normal liver biochemistries should be assessed for metabolic risk factors (eg, obesity, diabetes mellitus, dyslipidemia) and other causes of hepatic steatosis, including alcohol consumption (>14 drinks per week for women; >21 drinks per week for men) and medications.

• Routine screening for NAFLD in high-risk groups is not advised because of uncertainties surrounding diagnostic tests and treatment options, along with lack of knowledge about long-term benefits and cost-effectiveness of screening.

• The FIB-4 (age, aspartate aminotransferase, alanine aminotransferase, platelets) and NAFLD Fibrosis Score (NFS, which adds body mass index and albumin) are clinically useful tools to predict bridging fibrosis.

• Vibration-controlled transient elastography (VCTE) or magnetic resonance elastography (MRE) can noninvasively assess for advanced fibrosis.

• Weight loss generally reduces hepatic steatosis, either by hypocaloric diet alone or in conjunction with increased physical activity.

• Pharmacologic treatments should be limited to patients with biopsy-proven nonalcoholic steatohepatitis (NASH) and advanced fibrosis.

• Statins can be used to treat dyslipidemia in patients with NAFLD, NASH, and compensated NASH cirrhosis.

Keywords 
non-alcoholic liver disease non-alcoholic fatty liver disease liver disease liver cirrhosis
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