From seizures to Granulation Nation: The Unexpected Story of Phenytoin in Wound Healing

From seizures to Granulation Nation: The Unexpected Story of Phenytoin in Wound Healing

This episode traces how phenytoin — an anticonvulsant known for causing gingival overgrowth — was repurposed into a topical therapy for chronic wounds. It outlines the drug’s mechanisms in wounds: activating fibroblasts, increasing collagen synthesis, reducing MMP activity, modulating inflammation, and promoting granulation and angiogenesis in stalled diabetic foot ulcers.

Listeners will hear clinical implications, common formulations, and important cautions: topical phenytoin can aid healing in selected chronic ulcers but does not replace debridement, offloading, vascular optimization, or infection control, and should be avoided in malignant wounds, untreated osteomyelitis, or critical ischemia. The episode also highlights the drug’s history and future delivery innovations.

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Avsnitt(319)

Forgotten Infection Friday- Buruli Ulcer vs Diabetic Foot: Lessons from a Painless Wound

Forgotten Infection Friday- Buruli Ulcer vs Diabetic Foot: Lessons from a Painless Wound

This episode explores the rare Buruli (Buruli) ulcer caused by Mycobacterium ulcerans and its toxin mycolactone, which destroys tissue, suppresses immune signaling, and reduces pain, leading to delaye...

12 Juni 25min

Why we use Saline vs. Sterile Water vs. Tap Water vs Seawater- Not all water is equal

Why we use Saline vs. Sterile Water vs. Tap Water vs Seawater- Not all water is equal

In this episode Dr. G explains why 0.9% sterile saline is the preferred when using to cleanse for diabetic foot ulcers, diving into osmosis, isotonicity, and how saline preserves cell function while...

11 Juni 29min

Wound Intelligence Wednesday: Atraumatic Dressings for Diabetic Limbs

Wound Intelligence Wednesday: Atraumatic Dressings for Diabetic Limbs

This episode explains traumatic dressing selection for diabetic wounds, emphasizing atraumatic (especially silicone-based) dressings that protect fragile peri-wound skin, preserve keratinocytes and ca...

10 Juni 27min

Beyond Closure/ Post Healing Maintenance : Inside the Long Remodeling Phase of Wound Healing

Beyond Closure/ Post Healing Maintenance : Inside the Long Remodeling Phase of Wound Healing

Dr. G explains why skin closure in diabetic foot ulcers is a transition, not a cure: the remodeling phase can last months to years, leaving the scar biologically weaker and at high risk of recurrence....

9 Juni 31min

Pentoxifylline: How a 'Blood-Flow' Drug Helps Diabetic Foot Ulcers

Pentoxifylline: How a 'Blood-Flow' Drug Helps Diabetic Foot Ulcers

In this episode of Diabetic Foot Files Dr. G explores pentoxifylline — a decades-old methylxanthine drug — and how it improves microcirculation, reduces blood viscosity and inflammation, and may suppo...

8 Juni 21min

The Hidden Thief: How Dehydration Stops Diabetic Foot Ulcer Healing

The Hidden Thief: How Dehydration Stops Diabetic Foot Ulcer Healing

This episode explains how chronic dehydration—often overlooked in diabetic patients—slows blood flow, reduces oxygen and nutrient delivery, and stalls cellular repair, turning otherwise manageable foo...

7 Juni 28min

Why Vaseline Can Be Dangerous for Diabetic Feet

Why Vaseline Can Be Dangerous for Diabetic Feet

This episode explains what Vaseline (petroleum jelly) does: it is an occlusive that seals moisture in but does not hydrate. It can soften intact dry skin but is unsafe for diabetic ulcers, macerated o...

6 Juni 24min

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