{"id":4422481,"date":"2025-01-11T20:56:35","date_gmt":"2025-01-12T02:56:35","guid":{"rendered":"https:\/\/myendoconsult.com\/learn\/topics\/diabetic-complications\/"},"modified":"2025-01-12T12:52:38","modified_gmt":"2025-01-12T18:52:38","slug":"diabetic-complications","status":"publish","type":"oen_topic","link":"https:\/\/myendoconsult.com\/learn\/topics\/diabetic-complications\/","title":{"rendered":"Diabetic Complications"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">DIABETIC KETOACIDOSIS (DKA)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Definition and Pathophysiology<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Triad:<\/strong> Hyperglycemia, anion gap metabolic acidosis, and ketonemia.<\/li>\n\n\n\n<li>Primarily seen in <strong><a href=\"https:\/\/myendoconsult.com\/learn\/topics\/type-1-diabetes\/\" data-wpil-monitor-id=\"319\">type 1 diabetes<\/a> mellitus<\/strong> (severe insulin deficiency).<\/li>\n\n\n\n<li><strong>Mechanisms:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Insulin deficiency + excess counterregulatory hormones (glucagon, catecholamines, cortisol, GH).<\/li>\n\n\n\n<li>\u2192 Glycogenolysis, gluconeogenesis, decreased glucose disposal.<\/li>\n\n\n\n<li>\u2192 Excessive lipolysis, increased fatty acid oxidation \u2192 excess ketone production.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Clinical Presentation<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Onset:<\/strong> Can occur rapidly over 24 hours; often preceded by polyuria, polydipsia, weight loss.<\/li>\n\n\n\n<li><strong>Symptoms:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Nausea, vomiting, abdominal pain.<\/li>\n\n\n\n<li>Lethargy, Kussmaul respirations (slow, deep breathing).<\/li>\n\n\n\n<li>Fruity (acetone) odor on breath.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Signs:<\/strong> Hypotension, tachycardia, tachypnea, dehydration, decreased skin turgor, dry mucous membranes.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Laboratory Findings<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Low serum bicarbonate (&lt;10 mEq\/L).<\/strong><\/li>\n\n\n\n<li><strong>High <a href=\"https:\/\/myendoconsult.com\/learn\/anion-gap-formula\/\" data-wpil-monitor-id=\"321\">anion gap<\/a> (&gt;20 mEq\/L).<\/strong><\/li>\n\n\n\n<li><strong>High serum glucose<\/strong> (500\u2013900 mg\/dL).<\/li>\n\n\n\n<li><strong>Low arterial pH (&lt;7.3).<\/strong><\/li>\n\n\n\n<li><strong>Increased ketones<\/strong> (acetoacetate, \u03b2-hydroxybutyrate).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Differential Diagnosis<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Other causes of metabolic acidosis with high anion gap:\n<ul class=\"wp-block-list\">\n<li>Lactic acidosis, starvation ketosis, alcoholic ketoacidosis, uremia, salicylates, etc.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"672\" src=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic.png\" alt=\"\" class=\"wp-image-4421650\" srcset=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic.png 960w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic-300x210.png 300w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/DKA-infographic-768x538.png 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><figcaption class=\"wp-element-caption\">Management Protocol for Diabetic Ketoacidosis<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Treatment and Management<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Fluids:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Normal saline 1 L in first hour \u2192 200\u2013500 mL\/hr guided by clinical\/lab response.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Insulin Administration:<\/strong>\n<ul class=\"wp-block-list\">\n<li>IV bolus (10 U) + continuous infusion (0.1 U\/kg\/hr).<\/li>\n\n\n\n<li>Target: decrease serum glucose by 50\u201375 mg\/dL\/hr.<\/li>\n\n\n\n<li>Reduce insulin infusion rate when glucose ~200 mg\/dL to avoid hypoglycemia &amp; cerebral edema.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Electrolytes:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Potassium often shifts from intracellular to extracellular space, but total body K+ is low.<\/li>\n\n\n\n<li>Add K+ if serum K+ &lt;5.3 mEq\/L.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Monitoring:<\/strong>\n<ul class=\"wp-block-list\">\n<li>ICU setting, hourly blood glucose &amp; potassium checks, frequent electrolytes (Ca2+, Mg2+, phosphate).<\/li>\n\n\n\n<li>Correction period usually 12\u201336 hrs.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Identify Underlying Cause:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Often poor insulin compliance in known type 1 diabetes.<\/li>\n\n\n\n<li>Can be triggered by infection, MI, stroke, pancreatitis.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DIABETIC RETINOPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Overview<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Microvascular complication<\/strong> of hyperglycemia \u2192 25\u00d7 higher risk of blindness.<\/li>\n\n\n\n<li><strong>Vision Loss Mechanisms:<\/strong> Retinal hemorrhage, macular edema, retinal detachment, neovascular glaucoma.<\/li>\n\n\n\n<li>Nearly all with type 1 and &gt;50% with <a href=\"https:\/\/myendoconsult.com\/learn\/topics\/type-2-diabetes\/\" data-wpil-monitor-id=\"320\">type 2 diabetes<\/a> develop it within 20 years of diagnosis.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"3000\" height=\"2100\" src=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks.png\" alt=\"\" class=\"wp-image-4422731\" srcset=\"https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks.png 3000w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-300x210.png 300w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-768x538.png 768w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-1536x1075.png 1536w, https:\/\/myendoconsult.com\/learn\/wp-content\/uploads\/Diabetic-Retinopathy-Hallmarks-2048x1434.png 2048w\" sizes=\"auto, (max-width: 3000px) 100vw, 3000px\" \/><figcaption class=\"wp-element-caption\">Classic features of Diabetic Retinopathy<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Pathogenesis<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chronic hyperglycemia<\/strong> \u2192 abnormal retinal vessel permeability + vascular occlusion \u2192 ischemia.<\/li>\n\n\n\n<li><strong>Mechanisms:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Impaired autoregulation of retinal blood flow.<\/li>\n\n\n\n<li>Increased advanced glycation end products, sorbitol.<\/li>\n\n\n\n<li>Microaneurysms form from pericyte loss.<\/li>\n\n\n\n<li>Triggered growth factors (VEGF, etc.) \u2192 neovascularization.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nonproliferative Retinopathy (NPDR)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Key Findings:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Microaneurysms, intraretinal hemorrhages (dot-and-blot, flame-shaped), cotton-wool patches (nerve fiber infarcts), hard exudates (lipid).<\/li>\n\n\n\n<li>Macular edema = main cause of vision loss here.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Risk of Progression:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Mild NPDR: ~5%\/year to proliferative.<\/li>\n\n\n\n<li>Very severe NPDR: ~75%\/year to proliferative.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Proliferative Retinopathy (PDR)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Defining Feature:<\/strong> Neovascularization (new vessels from retinal vessels\/optic disc).<\/li>\n\n\n\n<li><strong>Complications:<\/strong> Vitreous hemorrhage, preretinal hemorrhage, traction retinal detachment \u2192 severe vision loss.<\/li>\n\n\n\n<li><strong>Diagnosis:<\/strong> Fundus exam \u00b1 fluorescein angiography (to detect leak\/ischemia).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Macular Edema<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Retinal thickening \u00b1 edema at or near macula \u2192 most common cause of diabetic vision loss.<\/li>\n\n\n\n<li><strong>Clinically significant macular edema<\/strong>: thickening threatens central visual function.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">COMPLICATIONS OF PROLIFERATIVE DIABETIC RETINOPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Clinical Course<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Neovascularization<\/strong> \u2192 high risk vitreous or preretinal hemorrhage, fibrosis, traction detachment.<\/li>\n\n\n\n<li>Untreated severe PDR \u2192 ~60% risk of vision loss within 5 years.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Management<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Annual screening<\/strong> crucial; retinopathy often asymptomatic until advanced.<\/li>\n\n\n\n<li><strong>Tight glycemic control<\/strong> slows progression.<\/li>\n\n\n\n<li><strong>Laser photocoagulation:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Panretinal (scatter)<\/strong> for severe PDR (~1200\u20131800 burns).<\/li>\n\n\n\n<li><strong>Focal<\/strong> for clinically significant macular edema.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Adjuncts:<\/strong> Intravitreal anti-VEGF agents under study.<\/li>\n\n\n\n<li><strong>Surgery (vitrectomy)<\/strong> for nonresolving vitreous hemorrhage or traction detachment.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DIABETIC NEPHROPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Overview<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Major cause of morbidity\/mortality in both type 1 and type 2 diabetes.<\/li>\n\n\n\n<li>Leading cause of end-stage renal disease (ESRD).<\/li>\n\n\n\n<li><strong>Classic triad:<\/strong> Proteinuria, hypertension, renal impairment.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Stages of Nephropathy<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Hyperfiltration<\/strong>: Elevated GFR, glomerular hypertrophy.<\/li>\n\n\n\n<li><strong>Silent Stage<\/strong>: Normal GFR, no proteinuria, but basement membrane thickening, mesangial expansion.<\/li>\n\n\n\n<li><strong>Incipient Nephropathy<\/strong>: Microalbuminuria (30\u2013300 mg\/24 hr), often with hypertension.<\/li>\n\n\n\n<li><strong>Overt Nephropathy<\/strong>: Macroalbuminuria (&gt;300 mg\/24 hr), rising creatinine.<\/li>\n\n\n\n<li><strong>Uremia<\/strong>: ESRD requiring renal replacement therapy.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Pathogenesis<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chronic hyperglycemia<\/strong> \u2192 thickened glomerular basement membrane, mesangial expansion, nodular\/diffuse glomerulosclerosis.<\/li>\n\n\n\n<li>Hypertrophy \u2192 glomerular hyperfiltration \u2192 progressive damage.<\/li>\n\n\n\n<li>Microangiopathy can cause tubulopathy, type IV RTA, hyperkalemia, hypoaldosteronism.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Treatment<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Glycemic control<\/strong>: slows onset\/progression.<\/li>\n\n\n\n<li><strong>Blood pressure management<\/strong>: ACE inhibitors\/ARBs are first-line for renoprotection (\u2193 albuminuria).<\/li>\n\n\n\n<li><strong>Avoid nephrotoxins<\/strong>: NSAIDs, contrast dyes, etc.<\/li>\n\n\n\n<li><strong>ESRD<\/strong>: Options include hemodialysis, peritoneal dialysis, <a href=\"https:\/\/myendoconsult.com\/learn\/dpc-score-for-kidney-transplant-recipients\/\" data-wpil-monitor-id=\"322\">kidney \u00b1 pancreas transplantation<\/a>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DIABETIC NEUROPATHY<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">General Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>~50% prevalence in those with \u226525 years diabetes.<\/li>\n\n\n\n<li>Not one single entity \u2192 multiple patterns: focal, proximal, distal, autonomic.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Focal Neuropathies<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mononeuropathies<\/strong> in older patients:\n<ul class=\"wp-block-list\">\n<li>Sudden onset, self-limited (2 months).<\/li>\n\n\n\n<li>Commonly CN III, VI, VII, or peripheral nerves (ulnar, peroneal).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Polyradiculopathy<\/strong>: severe pain along nerve roots \u00b1 muscle weakness.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Proximal Motor Neuropathies<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Diabetic amyotrophy<\/strong> \u2192 older type 2 patients.<\/li>\n\n\n\n<li>Thigh\/pelvic girdle pain, quad atrophy, marked weakness in proximal lower limbs.<\/li>\n\n\n\n<li>Often weight loss, depression.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Distal Symmetric Polyneuropathy (DSPN)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Most common<\/strong> form.<\/li>\n\n\n\n<li>Slow onset, symmetric, \u201cstocking-and-glove.\u201d<\/li>\n\n\n\n<li>Small-fiber neuropathy \u2192 burning pain, hyperalgesia, allodynia.<\/li>\n\n\n\n<li>Large-fiber neuropathy \u2192 decreased vibration\/proprioception, muscle weakness, absent reflexes.<\/li>\n\n\n\n<li>Risk of foot ulcers, Charcot arthropathy.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Autonomic Neuropathy<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pervasive<\/strong> sympathetic &amp; parasympathetic involvement \u2192\n<ul class=\"wp-block-list\">\n<li>Pupillary changes, orthostatic hypotension, gastroparesis, nocturnal diarrhea, neurogenic bladder, erectile dysfunction, sweat disturbances, hypoglycemic unawareness, silent MI.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">ATHEROSCLEROSIS IN DIABETES<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Overview<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Macrovascular complications more extensive and faster progression than in nondiabetics.<\/li>\n\n\n\n<li>Diabetes = CHD \u201crisk equivalent,\u201d same approach as known CHD.<\/li>\n\n\n\n<li><strong>Pathophysiology<\/strong>:\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/myendoconsult.com\/learn\/homa-ir-calculator\/\" data-wpil-monitor-id=\"323\">Insulin resistance<\/a> \u2192 \u2191 free fatty acids \u2192 \u2191 VLDL \u2192 dyslipidemia (low HDL, high small dense LDL).<\/li>\n\n\n\n<li>Insulin &amp; hyperglycemia potentiate platelet-derived growth factor \u2192 vascular smooth muscle proliferation.<\/li>\n\n\n\n<li>\u2191 plasminogen activator inhibitor 1, decreased nitric oxide.<\/li>\n\n\n\n<li>M\u00f6nckeberg arteriosclerosis (medial calcific sclerosis) more common.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Cardiovascular Risk Reduction<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Lifestyle<\/strong>: weight loss, exercise, stop smoking.<\/li>\n\n\n\n<li><strong>Optimal glycemic control<\/strong> and <strong>BP &lt;130\/80<\/strong>.<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/myendoconsult.com\/learn\/courses\/lipid-management-in-endocrine-disease\/\" data-wpil-monitor-id=\"324\">Lipid management<\/a><\/strong> (statins).<\/li>\n\n\n\n<li><strong>Aspirin<\/strong> for primary\/secondary prevention.<\/li>\n\n\n\n<li><strong>ACE inhibitors\/ARBs<\/strong> reduce CHD events in patients with diabetes.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Myocardial Infarction in Diabetes<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>2\u00d7 higher fatality rate vs. nondiabetics.<\/li>\n\n\n\n<li>Mechanisms: more severe underlying disease, microvascular involvement, less collateral flow, autonomic dysfunction, maladaptive remodeling.<\/li>\n\n\n\n<li>Glycemic control can shift myocardial substrate use from fatty acids to glucose, improving efficiency.<\/li>\n\n\n\n<li>Post-MI care: ACE inhibitors, cardioselective \u03b2-blockers, aspirin.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">VASCULAR INSUFFICIENCY IN DIABETES: THE DIABETIC FOOT<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Epidemiology<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Foot ulcers in ~10% of diabetics; ~1% need amputation.<\/li>\n\n\n\n<li>Neuropathy + vascular disease major contributors.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Pathogenesis<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Neuropathy<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Sympathetic \u2192 decreased sweating \u2192 dry, cracked skin \u2192 infection risk.<\/li>\n\n\n\n<li>Motor \u2192 small muscle atrophy \u2192 deformities (claw toes) \u2192 pressure points.<\/li>\n\n\n\n<li>Sensory \u2192 decreased pain\/proprioception \u2192 unnoticed trauma\/ulcers.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Vascular Insufficiency<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Peripheral arterial disease more severe, accelerated by diabetes-related endothelial dysfunction, atherosclerosis.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Prevention &amp; Screening<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-examination\/\" data-type=\"link\" data-id=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-examination\/\">Annual foot exams<\/a><\/strong>:\n<ul class=\"wp-block-list\">\n<li>Check pulses (dorsalis pedis, posterior tibial), skin temperature, dependent rubor.<\/li>\n\n\n\n<li>Inspect foot architecture for calluses, deformities (hammer\/claw toes), dryness.<\/li>\n\n\n\n<li><strong>Monofilament testing<\/strong> (Semmes-Weinstein 5.07 for protective sensation).<\/li>\n\n\n\n<li>Check vibration (128-Hz tuning fork), reflexes, color changes.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Foot Care<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Smoking cessation, avoid walking barefoot, test bath water temp, trim nails properly, daily inspection for lesions, well-fitting footwear.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Diabetic Foot Ulcer Classification (<a href=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-ulcer-stages\/\" data-type=\"link\" data-id=\"https:\/\/myendoconsult.com\/learn\/diabetic-foot-ulcer-stages\/\">Wagner Classification<\/a>)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Grade 0<\/strong>: No ulcer; high risk (deformity, callus).<\/li>\n\n\n\n<li><strong>Grade 1<\/strong>: Superficial ulcer (full-thickness).<\/li>\n\n\n\n<li><strong>Grade 2<\/strong>: Deeper ulcer (tendons, not bone).<\/li>\n\n\n\n<li><strong>Grade 3<\/strong>: Osteitis\/osteomyelitis (bone involvement).<\/li>\n\n\n\n<li><strong>Grade 4<\/strong>: Partial gangrene (e.g., toes\/forefoot).<\/li>\n\n\n\n<li><strong>Grade 5<\/strong>: Whole foot gangrene.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Management of Foot Ulcers<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Correct arterial insufficiency<\/strong> if present.<\/li>\n\n\n\n<li><strong>Treat infection<\/strong> aggressively (culture, antibiotics).<\/li>\n\n\n\n<li><strong>Offload pressure<\/strong> (removable cast boot, orthotics).<\/li>\n\n\n\n<li><strong>Debride<\/strong> devitalized tissue.<\/li>\n\n\n\n<li><strong>Imaging<\/strong> for suspected osteomyelitis \u2192 plain X-ray, MRI, bone scan.<\/li>\n\n\n\n<li><strong>Surgical resection<\/strong> for infected bone or extensive gangrene.<\/li>\n\n\n\n<li><strong>Self-amputation<\/strong> may occur if localized, noninfected necrosis (e.g., toe tip). Larger gangrene \u2192 urgent vascular, orthopedic consult.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>DIABETIC KETOACIDOSIS (DKA) Definition and Pathophysiology Clinical Presentation Laboratory Findings Differential Diagnosis Treatment and Management DIABETIC RETINOPATHY Overview Pathogenesis Nonproliferative Retinopathy (NPDR) Proliferative Retinopathy (PDR) Macular Edema COMPLICATIONS OF PROLIFERATIVE DIABETIC RETINOPATHY Clinical Course Management DIABETIC NEPHROPATHY Overview Stages of Nephropathy Pathogenesis Treatment DIABETIC NEUROPATHY General Features Focal Neuropathies Proximal Motor Neuropathies Distal Symmetric Polyneuropathy [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","oen_topic_chapter":[686],"class_list":["post-4422481","oen_topic","type-oen_topic","status-publish","hentry","oen_topic_chapter-the-pancreas","post-wrapper","thrv_wrapper"],"_links":{"self":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic\/4422481","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic"}],"about":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/types\/oen_topic"}],"version-history":[{"count":7,"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic\/4422481\/revisions"}],"predecessor-version":[{"id":4422755,"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic\/4422481\/revisions\/4422755"}],"wp:attachment":[{"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/media?parent=4422481"}],"wp:term":[{"taxonomy":"oen_topic_chapter","embeddable":true,"href":"https:\/\/myendoconsult.com\/learn\/wp-json\/wp\/v2\/oen_topic_chapter?post=4422481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}