What is the water proof dressing is called which apply on sutures
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The waterproof dressing applied over sutures is called a Transparent Film Dressing (also called a Semipermeable Film Dressing).
Transparent Film Dressing (Semipermeable Film Dressing)
The most well-known brand is Tegaderm (by 3M), which is so widely used that this name is often used interchangeably with the generic term.
What it is
A thin, clear polyurethane membrane with an adhesive backing. It is:
- Transparent - allows visual inspection of the wound/sutures without removing the dressing
- Waterproof - impermeable to water and bacteria from outside
- Breathable - permeable to oxygen and water vapor (so the wound does not suffocate)
- Non-absorptive - not suitable for wounds with heavy drainage
As described in Rosen's Emergency Medicine: "Film dressings are thin membranes that are transparent, adhesive, and waterproof but are not absorptive. They are best reserved for wounds with low levels of drainage. Film dressings may be left in place for up to 7 days."
Common Brand Names
| Brand | Manufacturer |
|---|---|
| Tegaderm | 3M (most popular) |
| OpSite / OpSite Flexigrid | Smith & Nephew |
| Bioclusive | Johnson & Johnson |
| CarraFilm | Carrington |
| Mefilm | Molnlycke |
Why it is used over sutures
- Keeps the wound moist, which accelerates epithelialization
- Protects from external contamination and water (patients can shower)
- Supports wound margins and reduces tension
- Allows the clinician to monitor healing without disturbing the dressing
- Stays in place for several days, reducing the number of dressing changes
As shown in Pfenninger and Fowler's Procedures for Primary Care, Tegaderm placed over a subcuticular running closure "provides not only moist healing/protection but support to the wound margins."
When NOT to use it
- Infected wounds (film traps exudate and promotes bacterial growth)
- Heavily draining wounds (it has no absorptive capacity)
- For draining wounds, hydrocolloid dressings (e.g., DuoDerm) are a better waterproof alternative
Blood in vomiting management
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hematemesis upper GI bleeding management guidelines 2024
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Here is a complete management guide for Hematemesis (Blood in Vomiting) - vomiting of blood from an upper GI source.
Hematemesis - Management
Definition & Terminology
| Presentation | Meaning |
|---|---|
| Bright red hematemesis | Active, brisk bleeding - blood hasn't been in stomach long |
| Coffee-ground emesis | Slower or older bleed - blood oxidized by gastric acid |
| Melena (black tarry stools) | Often accompanies hematemesis from upper GI bleed |
Hematemesis = upper GI bleeding proximal to the ligament of Treitz (esophagus, stomach, duodenum).
Common Causes
| Cause | Frequency |
|---|---|
| Peptic ulcer disease | ~35% (most common) |
| Esophageal/gastric varices | ~22% |
| Mallory-Weiss tear | ~4% (retching followed by hematemesis) |
| Erosive gastritis/esophagitis | Common |
| Dieulafoy lesion | ~3% |
| GI tract malignancy | ~3% |
| Portal hypertension lesions | ~5% |
Step-by-Step Management
1. IMMEDIATE STABILIZATION (ABCs)
- Airway: If active hematemesis, altered mental status, or respiratory insufficiency - intubate early to protect airway before endoscopy
- Two large-bore IVs (16G or larger)
- Supplemental oxygen, cardiac monitoring, pulse oximetry
- Position: left lateral decubitus to minimize aspiration risk
2. RESUSCITATION
- IV fluid resuscitation - crystalloids initially
- Blood transfusion: Transfuse if Hb ≤7 g/dL (most patients), or ≤9 g/dL in elderly/those with cardiac comorbidities
- Massive transfusion protocol if large volume blood loss expected (1:1:1 ratio - pRBC:FFP:platelets)
- Correct coagulopathy: Reverse if INR elevated or platelets <50,000/μL
- Do NOT liberally transfuse all patients to high threshold - this causes harm
3. LABORATORY WORKUP
| Test | Purpose |
|---|---|
| CBC | Hemoglobin/hematocrit (may lag behind actual loss initially) |
| Type & Cross-match | Most important - prepare for transfusion |
| BUN / Creatinine | BUN:Cr ratio ≥30 suggests upper GI source (digested blood raises BUN) |
| Coagulation (INR, PTT, platelets) | Guide coagulopathy correction |
| LFTs | Assess for liver disease/varices |
| Lactate | Rising lactate = predictor of in-hospital mortality |
| ECG | Rule out cardiac ischemia from reduced perfusion |
Note: Barium studies are contraindicated - they hinder subsequent endoscopy.
4. NASOGASTRIC LAVAGE
- Confirms upper GI bleeding when hematemesis is absent
- Positive if aspirate shows blood, maroon fluid, or coffee-ground material
- Perform gentle gastric lavage with room-temperature water if bright red blood found
- A negative aspirate does NOT exclude upper GI bleeding (23% false-negative rate)
5. PHARMACOLOGICAL TREATMENT
| Drug | Dose | Indication |
|---|---|---|
| Omeprazole (PPI) | 80 mg IV bolus → then 8 mg/h infusion | Non-variceal bleeding (peptic ulcer) - raises pH >6 to support clot formation |
| Octreotide | 50 mcg IV bolus → then 25-50 mcg/h infusion | Variceal bleeding - reduces splanchnic blood flow and gastric acid |
| Terlipressin | Alternative to octreotide for varices | Vasoconstricts splanchnic circulation |
| Antibiotics (ciprofloxacin 400 mg IV or ceftriaxone 1 g IV) | Cirrhosis patients only - reduces bacterial translocation, rebleeding, and mortality | |
| Erythromycin / Metoclopramide | Promotility agents | Clears blood from stomach for better endoscopic visualization |
6. ENDOSCOPY (Definitive)
Upper GI endoscopy (EGD) is the gold standard for diagnosis AND treatment.
- Timing: Within 6-24 hours for unstable patients (after resuscitation); within 12-36 hours for stable patients
- Allows visualization of the bleeding source and hemostatic therapy
Endoscopic hemostasis options:
- Injection therapy: Epinephrine, tissue adhesives (sclerosants)
- Mechanical: Clips, band ligation (varices)
- Thermal: Electrocoagulation, argon plasma coagulation, laser
7. RISK STRATIFICATION
Blatchford Score (pre-endoscopy): Uses BUN, Hb, blood pressure, heart rate, syncope, melena, liver disease - score 0 = safe for outpatient management.
Rockall Score (pre + post endoscopy): Incorporates age, shock, comorbidities, and endoscopic findings to predict mortality and rebleeding risk.
AIMS65: Albumin <3 g/dL, INR >1.5, altered mental status, SBP <90 mmHg, age >65 - score ≥2 = high mortality risk.
8. BALLOON TAMPONADE (Temporary Bridge)
For life-threatening variceal bleeding as a bridge to endoscopy or transfer:
- Sengstaken-Blakemore tube (gastric + esophageal balloon)
- Minnesota tube (adds esophageal suction port)
9. SURGERY / INTERVENTIONAL RADIOLOGY
For patients failing pharmacologic + endoscopic treatment:
- Non-variceal: Percutaneous angiographic embolization, subtotal/total gastrectomy
- Variceal: TIPS (transjugular intrahepatic portosystemic shunt) or surgical shunts
Disposition
| Risk Level | Action |
|---|---|
| Very low risk (age <60, stable vitals, no red hematemesis, normal labs) | ED observation or discharge with close follow-up |
| High risk (elderly, comorbidities, hemodynamic instability, red hematemesis) | ICU admission + urgent endoscopy |
Sources: Tintinalli's Emergency Medicine (7th Ed.), Sleisenger & Fordtran's GI and Liver Disease, Frameworks for Internal Medicine
Minor Ampullectomy + clip application + OD stenting done
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minor ampullectomy OD stenting pancreas divisum ERCP clip application post-procedure care
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https://pmc.ncbi.nlm.nih.gov/articles/PMC3350907
Here is a detailed breakdown of the procedure documented:
Minor Ampullectomy + Clip Application + OD Stenting
What Each Component Means
1. Minor Ampullectomy
Minor Ampullectomy = Endoscopic resection (papillectomy) of the minor duodenal papilla (also called the minor papilla or accessory papilla / papilla of Santorini).
- The minor papilla is located ~2 cm proximal and slightly anterior to the major papilla in the duodenum
- It is the orifice of the dorsal pancreatic duct (duct of Santorini)
- In pancreas divisum, the dorsal duct drains most of the pancreas through this minor papilla
Indications for minor ampullectomy:
- Adenoma or neoplasm at the minor papilla
- Symptomatic pancreas divisum (recurrent pancreatitis, chronic pain)
- Obstructive lesion at the minor papilla causing ductal hypertension
The resection is done via endoscopic snare resection (similar to major papillectomy technique) using a side-viewing duodenoscope.
2. Clip Application
After resection of the papilla, hemostatic clips are applied to:
- Control post-resection bleeding (a common complication after papillectomy)
- Bleeding can range from mild venous oozing to brisk arterial hemorrhage
- Clips are placed at the base of the resection site for mechanical hemostasis
Key point: There is a technical challenge here - clips should ideally NOT be placed before identifying and cannulating the pancreatic duct orifice, as they can obscure the ductal opening and make stenting difficult.
3. OD Stenting
OD Stenting = Orifice of the Duct stenting = Pancreatic Duct (PD) Stenting through the resected minor papilla orifice.
This is the most critical step after minor ampullectomy:
- A 5 Fr (French) short pancreatic stent is placed into the dorsal pancreatic duct through the minor papilla opening
- Purpose: Prophylaxis against post-ampullectomy pancreatitis - the single most important complication to prevent
- Level 1 evidence confirms PD stent placement markedly reduces the risk of post-ampullectomy pancreatitis
- The stent keeps the newly resected pancreatic orifice patent and prevents edema-induced obstruction
Best practice: PD stenting should be the FIRST maneuver after resection, before bleeding obscures the ductal orifice. Prompt placement is essential.
Full Procedural Sequence (Standard Protocol)
1. Pre-resection: MRCP/EUS to assess anatomy (rule out pancreas divisum)
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2. Pre-resection PD cannulation and pancreatogram (map ductal anatomy)
↓
3. Snare resection of minor papilla (ampullectomy)
↓
4. IMMEDIATE PD cannulation + OD stenting (5 Fr stent) ← priority step
↓
5. Hemostatic clip application to bleeding resection base
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6. Specimen retrieval for histopathology
Why This Combination Matters
| Step | Rationale |
|---|---|
| Ampullectomy | Removes lesion / relieves obstruction |
| OD (PD) stenting | Prevents post-procedure pancreatitis (most dangerous complication) |
| Clip application | Controls post-resection hemorrhage |
Post-Procedure Care
- Pancreatic stent removal within 2 weeks to minimize risk of pancreatic ductal injury from the stent itself
- Monitor for post-ERCP/ampullectomy pancreatitis (serum amylase, lipase at 4-6 hours)
- Surveillance endoscopy at 4 months with biopsy of resection site
- Annual endoscopy with side-viewing scope for 3-5 years thereafter
- Abdominal X-ray at 7-10 days to confirm stent position/passage
Key Complications to Watch For
| Complication | Frequency | Management |
|---|---|---|
| Pancreatitis | Most common | Prevented by PD stenting; treat as post-ERCP pancreatitis |
| Bleeding | Common post-resection | Clips, epinephrine injection, thermocoagulation |
| Perforation | Rare | Conservative vs surgical repair |
| Ductal stenosis | Late | Re-intervention, balloon dilation |
| Residual/recurrent adenoma | ~10-30% | Detected on surveillance endoscopy |
Sources: Bailey & Love's Short Practice of Surgery 28e; Bassan M et al. "Endoscopic ampullectomy: a practical guide," Frontline Gastroenterology 2012; Sleisenger & Fordtran's GI and Liver Disease
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