Week 4.5: Obesity and GI Flashcards
What is the BMI of pre-obese, Class I Obesity, Class II Obesity, and Class III Obesity
Pre-obese - 25-29.9
Class I - 30-34.9
Class II - 35-39.9
Class III greater than equal to 40
We measure obesity though ___
BMI
BMI
body mass index
a measure of an adult’s weight in relation to his or her height, calculated by using the adult’s weight in kilograms divided by the square of his or her height in meters
What are some chronic conditions we are at risk for when obesity
Alzheimer Disease, Anxiety, Depression, Stroke
Asthma, Obstructive Sleep Apnea, resp infections
Non alcoholic fatty liver disease, liver cancer
thyroid cancer
CAD, MI, heart failure , HTN
Renal cancer
Type II Diabetes and Pancreatic cancer
colorectal cancer
hypercholesterolemia
prostate cancer
osteoarthritis
cholecystitis, cholelithiasis, gallbladder cancer
Treatment Options for Obesity
1 is Behavioral Modifications (diet and exercise)
- Pharmacological management
- Bariatric Surgery
What is the problem with pharmacology management for obesity
rarely do patients lose more than 10% of total body weight
Standard Treatment post Behavioral Modification for Obesity
Bariatric Surgery
How is bariatric surgery trending over time
it is trending upward (13000 in 98 to 278000 in 19)
What are the 2 mechanisms of Bariatric Surgery
- Restriction
2. Malabsorption depending on the type of surgery / Affect Absorption
Benefits of Bariatric Surgery
Total Body Weight Loss
Recovery of Chronic Illnesses
Criteria for Bariatric Surgery
- BMI greater than or equal to 40 kg/m^2
OR
- Patients with BMI greater than or equal to 35 and one or more severe obesity associated comorbid conditions
OR
- Patients with BMI greater than or equal to 30 with type 2 diabetes or metabolic syndrome
4 Major Types of Bariatric Surgery
- Biliopancreatic Diversion w/ Duodenal Switch
- Roux En Y Gastric Bypass
- Sleeve
- Gastric Banding
Biliopancreatic Diversion w/ Duodenal Switch
“Sleeve Gastrectomy w/ Duodenal Switch”
Half of stomach is removed, leaving a small area that holds about 60 mL
Jejunum is excluded from the GI tract and connected to the start of the duodenum and then the ileum on the other side
Pyloric Valve is still intact in this one
Is there risk for dumping syndrome with biliopancreatic diversion w/ duodenal switch
No there is no dumping syndrome since the pyloric valve is intact
Roux En Y Gastric Bypass
horizontal row of staples across fundus of stomach makes a pouch with a capacity of 20-30 mL - the jejunum is then divided and brought to the small pouch and then brought through roux limb
The pyloric valve is bypassed
Is there risk for dumping syndrome in Roux En Y Gastric Bypass
yes, the pyloric valve is bypassed entirely
Sleeve
Sleeve Gastrectomy
Stomach is incised vertically and up to 85% of the stomach is surgically removed, leaving a “sleeve” shaped tube that retains intact nervous innervation and dose not obstruct or decrease the size of the gastric outlet
The Gastric Sleeve can hold up to __ mL
20
Will a pt get dumping syndrome with a sleeve
no pyloric valve is left intact
Gastric Banding
a prosthetic device is used to restrict oral intake by creating a small pouch of 10-15 mL that empties through the narrow outlet into the remainder of the stomach
the band hangs outside the stomach for adjustment
many pts not successful with this procedure
What kind of bariatric surgery is being phased out
Gastric Binding
It is generally unsuccessful and also has lowest level of weight loss
What bariatric surgery leads to most excess weight loss
bilopancreatic diversion with DS
What is important to know about fluids and bariatric surgery
No fluids with meals, and avoid fluid intake 30 min before a meal and 30-60 min after a meal
Bariatric surgery postop care is similar to gastric resection but …
greater risk for complications due to obesity
What is a very important thing to do preop before bariatric surgery?
PSYCHOSOCIAL INTERVENTIONS to modify eating behaviors
What is contraindicated following a bariatric surgery
an NG tube - risk for perforation from disrupting surgical suture line
Nursing Diagnoses for Bariatric Surgery
Deficient knowledge about dietary limitations
Anxiety related to impending surgery
Acute pain related to surgical procedure
risk for deficient fluid volumes related to nausea, gastric irritation and pain
risk for infection related to anastomotic
imbalanced nutrition
disturbed body image
risk for constipation and/or diarrhea
Goals Pre and Post Op for Bariatric Surgery
preop and postop knowledge, manage anxiety
post op: manage pain, maintain homeostatic fluid balance, prevent infection, adhere to dietary instructions, vitamin supplements, lifelong follow up, positive body image, and normal bowel habits
T/F: After bariatric surgery, the average pt loses between 25-35% of presurgical body weight within the first 18-24 months post-procedure
True - pt will expect to see weight loss following bar surgery if following instructions
T/F: After bowel sounds have returned and oral intake is resumed follow bariatric surgery, 6 small feedings consisting of a total of 600 to 800 calories per day should be consumed
True
T/F: Traditionally, the term morbid obesity applies to adults whose body mass index (BMI) exceeds 40 kg/m^2
True
Risk Factors for GI Disorders
Family Hx
Lifestyle - stress, poor diet, alcohol, tobacco, smoking can all lead to these disorders - many of the disorders are associated with lifestyle behaviors
Domino Effect
Previous abdominal surgeries or trauma
Neurologic disorder
What can GERD lead to?
Barret’s esophagus –> predisposition for esophageal cancer
What can chronic gastritis lead to?
predisposition of gastric cancer
What can previous abdominal surgeries lead to
potential adhesions –> potential obstructions
What can neurological disorders like MS/Parkinsons can impair what
pt ability to move and have peristalsis which impairs movement of waste products
GERD
Backward movement of gastric or duodenal contents
makes pt feel like they are having heartburn and these episodes occur more than 2 times a week
What is the major cause of GERD
relaxation or weakness of LES (lower esophageal sphincter)
obesity can also cause GERD
Things that Trigger LES Relaxation
Fatty Food
Caffeinated Beverages
Carbonation
Chocolate
Milk
Chocolate Milk
Tobacco
Spearmint
Progesterone therapy and in surgery
NG tube also permanently impairs function
Medications: NSAIDS, Calcium Channel Blockers, Blood Pressure Meds, Nitroglycerine for chest pain
Pyloric Stenosis
Mucosal irritants - tomato’s and citrus
What to do prior to laying down for the night when you have GERD
do not eat 3 hours prior to laying down - no supine if you do
What is a classic symptom of GERD
“Waking up in the middle of the night feeling a pain in their throat or feeling heartburn”
Clinical Manifestations of GERD
Pyrosis Dyspepsia Sour Taste Hypersalivation Dysphagia Ordynophagia Eructation Fullness (even when eating a v small amount of food) - Early Satiety Nausea
Pyrosis
burning in the esophagus / heartburn
Dyspepsia
pain in the upper abdomen
Dysphagia
difficulty swallowing
Ordynophagia
Painful swallowing
Eructation
belching
When do symptoms worsen for GERD
worsens lying down, bending over, and occurs 30 min to 2 hours post meal
Non Surgical Interventions
Dont let the sphincters relax
Promote gastric emptying and avoid gastric distention
Watch those acidic foods
Medications
(eat small meals, lose some weight, stop smoking, keep HOB elevated after a meal, avoid tight clothing, avoid lying down after eating)
Surgical Intervention for GERD
Nissen Fundoplication
Nissen Fundoplication
takes the fundus and wraps it around the LES to reinforce the closing function of the sphincter
Risks of surgery of Nissen Fundoplication
Hemorrhage, Bleeding, Infection, Obstruction (If too tight)
Short bouts of temporary dysphagia
Bloating and gas buildup
Does Nissen Fundoplication cure GERD
no they still need to follow non surgical recommendations
Barretts Esophagus
w/ prolonged GERD acid erodes lining of the esophagus and turns cells of esophagus to look like the lining of the intestines
alterations can lead to esophageal cancer
Hiatal Hernia
when the opening through the diaphragm where the esophagus passes becomes enlarged and part of upper stomach moves into lower portion of the thorax
Risk Factors for Hiatal Hernias
Age
Obesity
Women more at risk
Concerns of Hiatal Hernias
Obstructions and Strangulations
What are the two types of Hiatal Hernias
- Sliding
2. Rolling
Sliding Hiatal Hernia
Gastroesophageal jxn is compromised
the stomach sits right in the esophagus
Rolling Hiatal Hernia
Gastroesophageal junction is intact or compromised
the stomach is pushed through the diaphragm and sits next to esophagus
How does a Sliding Hiatal Hernia present
can be asymptomatic
GERD symptoms
How does a Rolling HIatal Hernia Present
can be asymptomatic
GERD symptoms
breathlessness after eating
chest pain that mimics angina
feeling of suffocation
worse lying down (SOB)
since it is pushing on resp tract
Which type of hiatal hernia has a higher risk for strangulation?
Rolling Hiatal Hernia
Piece of stomach can be strangulated - leading to higher risk for strangulation
Interventions for Hiatal Hernias
limit or eliminate foods that relax LES
promote gastric emptying or avoid gastric distention (this also helps prevent movement of the hernia)
limit or eliminated foods that add fuel to the acid fire d/t acidic content (tomato and citrus)
medication reconcilliation
sleep in low fowlers position
Reglin to promote mobility and peristalsis
Gastritis
lining of the stomach is inflamed or swollen - disrupted stomach lining
over time the mucosa can erode due to this
Gastritis can be ___ or ___
acute or chronic
How long is acute gastritis compared to chronic gastritis
Acute = few hours to days
chronic = repeated exposure/recurrent episodes
What is the cause of non erosive acute gastritis
H pylori
What is the cause of erosive Gastritis
NSAIDS, motrin, ASA< Alcohol use
Why can H Pylori lead to pernicious anemia
Chronic Gastritis caused by H Pylori can destroy the parietal cells of the stomach leading to a lack of intrinsic factor production which is needed for VitB12 absorption –> therefore chronic gast. pts may need VitB12 injections lifelong
What makes gastritis worse
stress
caffeinated beverages
any triggers for GERD: smoking, spicy or highly se4asoned food, alcohol etc
What are some s/s of gastritis
acute: anorexia, epigastric pain, hemtaemesis, hiccups, melena or hematochezia, NV
Chronic: belching, early satiety, intolerance to fatty or spicy foods, NV, pyrosis, sour taste in mouth, vague epigastric discomfort relieved by eating
What are the goals for patients hospitalized for gastritis
relieving pain (abdominal)
promote fluid balance
reduce anxiety
promote optimal nutrition
Why is nutrition balance and fluid balance impaired with gastritis
they become essentially NPO and are not consuming enough calories so they arnt getting the food they need or are drinking and risk dehydration
Interventions to Treat Chronic Gastritis
If caused by H Pylori –> Combo of antibiotics
NSAIDS/Alcohol –> collaborate with health care team, educate patient, refer
smoking cessation
stress management
avoid trigger foods
focus on the mind-gut connection
Peptic Ulcer Disease (PUD)
sores in the lining of the GI system and these sores can erode at the mucosa
How does gastritis and PUD differ
Gastritis only effects the stomach lining while peptic ulcers are localized sores that can erode past the mucosal layer at least half a centimeter (deeper than gastritis)