Obesity Medicine

ABSTRACT: To assess a child for overweight, begin by calculating his or her body mass index (BMI). Note that BMI is used differently in children than it is in adults. A child's BMI is plotted on a growth curve that reflects that child's age and gender. This yields a value-BMI-for-age-that provides a consistent measure across age groups. Children whose BMI-for-age is between 85% and 95% are at risk for becoming overweight. Any child whose BMI-for-age is 95% or more is considered overweight. The 2 main factors associated with overweight in children are poor eating habits and decreased physical activity. Recommend that children have at least 5 servings of fruits and vegetables a day. Children should engage in moderate physical activity for at least 60 minutes on most days of the week, and TV viewing and computer activities should be limited to no more than 2 hours a day.

A 30-year-old man presentedwith severe left flankpain radiating to his abdomenand gross hematuriaof 5 to 10 days’ duration.He also reported a 4- to 6-monthhistory of nausea with intermittentvomiting, anorexia, and progressiveweight loss. He took no medicationsand had no allergies.

Backyard cookouts . . . picnics at the beach . . . these warm-weather pleasures can heighten your patients' risk of exposure to food-borne pathogens. An egg salad sandwich, left in the hot sun too long, can become a breeding ground for Salmonella, and undercooked burgers can harbor Escherichia coli O157:H7.

A 32-year-old woman presents with weight loss of 6.4 kg (14 lb) during the past 8 months and diarrhea of recentonset. Menstruation had ceased 10 weeks earlier. She appears anxious, with pressured speech. Physical examination detectsbaseline sinus tachycardia, sweaty palms, and a diffusely enlarged thyroid gland. Laboratory tests reveal a thyroid-stimulatinghormone (TSH) level of 0.00 µU/mL (normal, 0.45 to 4.5 µU/mL), a free thyroxine (FT4) level of 4.8 ng/dL (normal,0.61 to 1.76 ng/dL), and a positive thyroid-stimulating immunoglobulin (TSI) level with high titer.

Swelling of the lower legs broughtthis 57-year-old woman to a familypractice clinic. She had a history ofhyperthyroidism with weight loss,tachycardia, and anxiety. This conditionwas confirmed with blood testsand radioactive iodine uptake testing.

This 17-year-old presented with a 1-month history of weight loss, increased appetite, mild insomnia, hand tremor, palpitations, sweating, heat intolerance, and quick loss of temper. The number of daily bowel movements had increased from 1 to 2. There was no family history of thyroid disorders.

Because bariatric surgery has traditionally been associated with a high incidence of complications, it has been used primarily for superobese patients. A large body of evidence suggests that laparoscopic adjustable gastric banding is a much safer procedure that is also very effective. This procedure offers an additional option to patients who might benefit from bariatric surgery when diet, exercise, and pharmacologic approaches have failed. Here we address questions primary care physicians often ask about the procedure.

For 2 months, an asymptomatic rash had been present on the upper arms of a 16-year-old boy of normal weight. The rash, as seen on the patient’s right arm, consisted of abundant fine papules. He had no other lesions.

Recreational diving continues to increase in popularity; as many as 15 million Americans are certified scuba divers. Although a few serious and possibly life-threatening conditions require recompression treatment, most diving injuries are uncomplicated and can be managed by the primary care physician. In this article, we address the questions most often asked about fitness and safety issues. In a future article, we will review the principal medical problems associated with sport diving.

ABSTRACT: Urinary incontinence is a widespread disorder that remains underdiagnosed, underreported, and undertreated. Nevertheless, it is highly treatable. Components of the initial office evaluation include a focused history taking, physical examination, a postvoid residual urine volume measurement, and urinalysis. Behavioral interventions are first-line therapy. These include bladder training, pelvic floor muscle training, biofeedback therapy, and caregiver-dependent interventions. The antispasmodics oxybutynin and tolterodine are the most commonly used agents for urge incontinence. Stress incontinence can be treated with pseudoephedrine or topical vaginal estrogen. Imipramine may be helpful in cases of nocturnal or mixed incontinence. Overflow incontinence caused by an anatomic obstruction may be treated with an α-blocker.

ABSTRACT: Consider prophylactic therapy for patients with frequent (5 or more per month), severe migraine attacks; commonly used agents include β-blockers, calcium channel blockers, antidepressants, and antiepileptic agents. Daily or alternate-day use of aspirin or an NSAID may also be helpful, and limited data suggest angiotensin II receptor blockers may provide effective migraine prophylaxis. For treatment of acute migraine attacks, triptans have emerged as the most effective agents. Controlled clinical trials have demonstrated that all the triptans have similar efficacy. The optimal strategy for an acute migraine attack is to initially administer a therapeutic agent at a dose sufficient to relieve symptoms. Intervention during the early, mild stages of an attack is more likely to alleviate pain than intervention after moderate to severe symptoms occur.

Many of the 9.5 million cancer survivors in the United States seek advice about food, physical activity, dietary supplements, and complementary nutritional therapies. Recently, the American Cancer Society (ACS) issued a guide that provides clinicians with information that can help these patients make informed choices.1 Highlights of the report follow.

An obese 61-year-old man who hadchronic obstructive pulmonary diseaseand sleep apnea heard a “pop”in his stomach while lifting a heavyweight; severe abdominal pain followed.He was short of breath thenext morning, and his physician empiricallyprescribed cephalexin.

ABSTRACT: The metabolic syndrome, which presents as a cluster of atherogenic traits, confers an increased risk of coronary heart disease (CHD) that may be greater than the sum of the risks associated with the individual components. The principal components of the syndrome are abdominal obesity, elevated triglyceride level, low high-density lipoprotein cholesterol level, elevated blood pressure, and elevated fasting glucose. The presence of 3 of the 5 characteristics establishes the diagnosis. First-line therapy for the metabolic syndrome consists of lifestyle modification measures, such as weight reduction and physical activity; however, pharmacologic treatment may be necessary. Statin therapy decreases the elevated levels of low-density lipoprotein cholesterol and triglycerides characteristic of the metabolic syndrome. Control of nonlipid CHD risk factors, such as hypertension and diabetes, is also critical.

ABSTRACT: The presence of blood in the urine is a significant finding that calls for prompt evaluation. Gross hematuria usually indicates a serious problem; its correlation with malignancy-typically a transitional cell carcinoma-is fairly high. Microscopically detectable blood is less likely to signal a major underlying condition; a finding of 0 to 3 red cells per high-power field is probably innocent. The workup for gross and microscopic hematuria focuses on disturbances of urinary tract function and includes a history and physical examination, urinalysis, radiologic imaging, urine cytology, and cystoscopy. The presence of hematuria, proteinuria, and renal insufficiency warrants referral to a nephrologist. A search for the cause of microscopic hematuria is much less likely than a workup for gross hematuria to uncover a life-threatening condition. If the hematuria persists, repeat the urinalysis and cytology every 6 months until the problem resolves or 3 years have passed.

The diagnosis and treatment of migraine as its own entity is a complicated and delicate balance between identification and management. The situation is more complex, however, when the patient with migraine presents with comorbid conditions (eg, mood, neurologic, or musculoskeletal pain disorders). These comorbid conditions have important clinical implications. In fact, the risk of these and other comorbid disorders is much higher for migraineurs than for persons without a history of migraine. Comorbid conditions can also complicate treatment in some patients because of the potential for drug interactions or exacerbation of one condition by therapy for the other. The onus is on the physician to consider migraine treatment regimens that include the potential to manage underlying comorbidities and, conversely, to consider treatment regimens when migraine itself may be secondary to other primary symptoms.

A 34-year-old white woman presentswith a 4-month history of diarrhea,with bulky, foul-smelling stools; flatulence;diffuse abdominal discomfort;and episodic nausea and vomiting. Shehas lost 13.5 kg (30 lb) during this period.The patient has had no fever, andher medical, family, and travel historyare unremarkable.

To distinguish between hypertensive emergencies and urgencies and nonurgent acute blood pressure elevation, evaluate the patient for evidence of target organ damage. Perform a neurologic examination that includes an assessment of mental status; any changes suggest hypertensive encephalopathy. Funduscopy can detect papilledema, hemorrhages, and exudates; an ECG can reveal evidence of cardiac ischemia. Order urinalysis and measure serum creatinine level to evaluate for kidney disease. The possible causes of a hypertensive emergency include essential hypertension; renal parenchymal or renovascular disease; use of various illegal, prescription, or OTC drugs; CNS disorders; preeclampsia or eclampsia; and endocrine disorders. A hypertensive emergency requires immediate blood pressure reduction (although not necessarily to the reference range) with parenteral antibiotics. An urgency is treated with combination oral antihypertensive therapy.

Millions of Americans suffer from anxiety disorders. Many with panic disorder, social anxiety disorder, and/or generalized anxiety disorder present initially to their primary care clinician. Effective treatment is possible in a busy primary care setting; therapy involves patient education and pharmacotherapy. Once other potential causes of symptoms of an anxiety disorder have been ruled out, the first step is to reassure the patient that he or she has a psychological condition-a very common one-and that symptoms are not the result of an undiagnosed disease or "going crazy" or "losing control." Educate and inform patients that complete clinical remission is achievable, often with medication alone. Begin treatment on day 1 with a long-acting benzodiazepine-such as alprazolam XR or clonazepam-or with the anxiolytic agent buspirone; at the same time, start a selective serotonin reuptake inhibitor (SSRI). The anxiolytic agent allays acute somatic symptoms until the full effects of the SSRI are manifest (often 4 to 6 weeks). The anxiolytic can then be gradually tapered. Referral to a psychiatrist for psychotherapy may be indicated when a patient refuses or cannot tolerate drug therapy, or when response to therapy is inadequate.

ABSTRACT: The basic screening studies for rheumatic diseases are a complete blood cell count, a determination of the erythrocyte sedimentation rate (ESR) or C-reactive protein (CRP) level, a rheumatoid factor assay, an antinuclear antibody (ANA) test, a measurement of serum uric acid level, and a urinalysis. Test results must be interpreted within a clinical context; for example, a positive ANA assay suggests the possibility of a rheumatic disorder, but it is not specific for any diagnosis. Tests that reveal the nature and extent of target-organ involvement, such as renal function studies in patients with systemic lupus erythematosus, can help guide the selection of therapy. Laboratory results also reflect disease activity; the ESR and CRP level are useful gauges of the activity of most inflammatory rheumatic disorders. Finally, laboratory monitoring can help you minimize the significant toxicity associated with many of the drugs used to manage rheumatic diseases.

A52-year-old white man presented with a pruritic eruption on the neck of 3 months’ duration. The rash had not responded to a potent topical corticosteroid prescribed by another practitioner for the presumed diagnosis of eczema. The patient reported no current health problems. His history included a pubic louse infestation and several episodes of uncomplicated urethral gonorrhea. He readily admitted to having unprotected sexual intercourse with prostitutes.

Treatment of fibromyalgia syndrome (FMS) is a challenge. However, most patients benefit from appropriate management. Essential to treatment are a physician's positive and empathetic attitude, continuous psychological support, patient education, patience, and a willingness to guide patients to do their part in management. Other important aspects involve addressing aggravating factors (eg, poor sleep, physical deconditioning, emotional distress) and employing various nonpharmacologic modalities (eg, regular physical exercise) and pharmacologic therapies. Drug treatment includes use of tricyclic medications alone or in combination with a selective serotonin reuptake inhibitor, and other centrally acting medications. Tender point injection is useful. It is important to individualize treatment. Management of FMS is both a science and an art.

A 67-year-old Hispanic woman is seen for routine physical examination. Has mild hypertension but no other known medical problems. Feels well. No weight loss. No reported difficulty with eating, speaking, or swallowing. Denies any discomfiture in the mouth. States that nothing has changed in her mouth “ever since I lost my baby teeth.” Does not smoke cigarettes nor drink alcohol.

Is hypertension a frequent manifestation of thyroid disease?Which clinical clues suggest hypertension in persons with thyroiddysfunction?

Sudden profound vision loss in her left eye prompted an82-year-old woman to seek evaluation. She also complainedof “just not feeling well” and reported new-onsettemporal and occipital headaches of 6 weeks’ duration.

Signs and symptoms that strongly suggest peripheral arterial occlusive disease include diminished or absent pedal pulses, a unilaterally cool limb, and atrophic skin that is shiny and hairless. An ankle-brachial index of less than 0.5 suggests multisegment disease. Management goals are to decrease functional impairment, treat underlying atherosclerosis, and control risk factors. Smoking cessation is imperative. A graduated walking program is a mainstay of treatment and is associated with greater improvement in pain-free walking than is drug therapy. Surgery and percutaneous intervention are generally reserved for patients with lifestyle-limiting claudication, ischemic pain at rest, tissue loss, or gangrene.

A 75-year-old obese woman with subacute-onset dyspnea and lower right posterior chest pain was brought to the emergency department. She had a history of diastolic heart failure, arthritis, and suspected obstructive sleep apnea. The patient was dyspneic at rest.

ABSTRACT: The results of diagnostic tests do not correlate well with the presence and severity of pain. To avoid missing a serious underlying condition, look for "red flags," such as unexplained weight loss or acute bladder or bowel function changes in a patient with low back pain. Nonopioid medications can be more effective than opioids for certain types of pain (for example, antidepressants or anticonvulsants for neuropathic pain). When NSAIDs are indicated, cyclooxygenase-2 inhibitors are better choices for patients who are at risk for GI problems or who are receiving anticoagulants. However, if nonspecific NSAIDs are not contraindicated, consider using these far less expensive agents. The tricyclic antidepressants are more effective as analgesics than selective serotonin reuptake inhibitors. When opioids are indicated, start with less potent agents (tramadol, codeine, oxycodone, hydrocodone) and then progress to stronger ones (hydromorphone, fentanyl, methadone, morphine) if needed.

A 74-year-old woman was admitted to the hospital with abdominal pain, weight loss, fatigue, and change in bowel habits of 6 months’ duration. Her hemoglobin level was 7 g/dL; carcinoembryonic antigen, 672 ng/dL.

Uncontrolled hypertension is a major health problem among African Americans. Obesity, high sodium and low potassium intake, and inadequate physical activity have been identified as barriers to cardiovascular health in many African Americans. Thus, it is important to educate and counsel patients about lifestyle modifications, such as a low-sodium, DASH (Dietary Approaches to Stop Hypertension)-type diet; regular aerobic exercise; moderation of alcohol consumption; and smoking cessation. All classes of antihypertensive agents lower blood pressure in African Americans, although some may be less effective than others when used as monotherapy. Most patients require combination therapy. Both patient barriers (such as lack of access to health care and perceptions about health and the need for therapy) and physician barriers (such as poor communication styles) contribute to the low rates of hypertension control in African Americans. Patient-centered communication strategies can help overcome these barriers and can improve compliance and outcomes. Such strategies include the use of open-ended questions, active listening, patient education and counseling, and encouragement of patient participation in decision making.