| |
The Gall
bladder:
It is a pear shaped organ measuring about 7.5 to 12.5 cm long.
It is capable of considerable distention in certain pathological
conditions.
The Anatomical
subdivisions are
a) fundus
b) body
c) neck; which terminate in the narrow infundibulum.
The mucus membrane contains indentations of the mucosa that sink
into the muscle coat. These are crypts of Luschka
The cystic
duct:
It is about 2.5 cm in length. It contains the spiral valve
of Heister.
The common hepatic duct:
It is usually less than 2.5 cm long. It is formed by the union
of right and left hepatic duct.
The common bile duct:
It is about 7.5 cm long. It is formed by the union of the cystic
and common hepatic ducts. It is divided into four parts;
a) the supraduodenal portion
b) the retroduodenal portion
c) the infraduodenal portion
d) the intraduodenal potion. It is surrounded by the sphincter
of Oddi
The common bile duct terminates by opening on the summit of the
papilla of Vater.
Arterial supply of Gall bladder:
Gall bladder is supplied by cystic artery, which is a branch of
the right hepatic artery and occasionally an accessory cystic
artery from gastroduodenal artery.
Lymphatic drainage:
The lymph vessels of Gall bladder drain into the cystic lymph
nodes of Lund; which lies in the fork created by the junction of
the cystic and common hepatic ducts. Efferent vessels from this
lymph node go to the hilum of the liver and to the coeliac lymph
nodes.
Surgical physiology:
Bile consists of 97% water, 1-2 % bile salts and 1 %
pigments, cholesterol and fatty acids. Liver excretes bile at a
rate estimated at 40 ml per hour.
Functions of Gall bladder:
1. Reservoir of bile:
During fasting, resistance to flow through the sphincter is high
and bile excreted by the liver is diverted to the gall bladder.
After feeding the resistance to the flow through the sphincter
of oddi is reduced, the gallbladder contents and bile enters the
duodenum. This motor response of the biliary tract is effected
by the hormone cholecystokinin released by the upper intestinal
mucosa in response to food, particularly fats.
2. Concentration of bile:
The bile is concentrated 5 to 10 times, by the active absorption
of water, sodium, chloride and bicarbonates by the mucus
membrane of the gall bladder.
3. Secretion of mucin:
About 20 ml is secreted per day.
GALLSTONES
(CHOLELITHIASIS)
Gallstones are the commonest biliary pathology.
Classification:
According to their chemical composition, gallstones are
classified into
a) Cholesterol stones: Comprises 6 %, usually solitary (
Cholesterol Solitaire)
b) Mixed stones: Account for 90% of gallstones. Their main
content is cholesterol, calcium carbonate, calcium phosphate,
calcium bicarbonate, calcium palmitate and proteins. Usually
multiple and often faceted.
c) Pigment stones: They contain calcium bilirubinate. They are
usually small, black and multiple.
Sea gull sign or Mercedes Benz sign:
The center of the stone may contain radioluscent gas in a
triaradiate or biradiate fissure and this gives rise to
characteristic dark shapes on x-ray, which is known as Sea gull
sign or Mercedes Benz sign.
Incidence of gallstone:
A ‘ Fat, Fertile, Flatulent Female of Fifty’ is the classical
sufferer from symptomatic gallstones. Stones are rarer in Africa
and in South India; but not in North India.
Causative factors:
They may be divided into
1. Metabolic
2. Infective
3. Bile stasis
Cholesterol and Mixed stones:
1. Metabolic:
Cholesterol insoluble in water is held in solution by the
detergent action of bile acids and phospholipids, with which it
forms Micelles. Bile containing cholesterol stones has an excess
of cholesterol relative to bile salts and Phospholipids, thus
allowing cholesterol crystals to form. Such a bile is termed ‘
supersaturated or lithogenic’. Bile cholesterol increases with
age and is raised in individuals who are obese and who are
taking contraceptive pills and Clofibrate (a drug used in
hyperlipoproteinemia). The concentration of bile salts is
reduced by oestrogen and by those factors which interrupt the
enterohepatic circulation of bile salts (ileal diseases,
resection or by pass and Cholestyramine therapy). These
conditions are associated with an increased incidence of stones.
2. Infection:
Organisms can be cultured from the center of gallstones. The
radioluscent center of many gallstones represents mucus plugs,
originally formed around bacteria.
3. Bile stasis:
Oestrogens in pregnancy and truncal vagotomy reduce gall bladder
contractility. Gallstones are formed in such situations.
Patients on long term parenteral nutrition also have a high
incidence of stones.
Pigment stones:
They are seen in patients with hemolysis; in which bilirubin
production is increased. For example: Hereditary Spherocytosis,
Sickle Cell Anemia, Thalassemia, Malaria and mechanical
destruction of red cells by prosthetic heart valves. They are
also seen in patients with benign or malignant strictures. They
are also common in Cirrhosis. They are often associated with
Ascaris lumbricoides infestation. E. coli may be found in the
bile of the patients with pigment stones. E.coli produce enzyme
beta glucoronidase, which converts bilirubin to its unconjugated
insoluble form.
Saint’s triad:
It constitutes;
1. Gallstone
2. Diverticulosis of colon
3. Hiatus hernia
The effects and complications of gallstones:
Gallstones are usually found in the gall bladder; but may
also be present in the bile ducts. The effects and complications
of gallstones may be summarized as follows;
1. In the gall bladder:
Silent stones
Chronic cholecystitis Gangrene
Acute choecystitis Perforation
Empyema
2. In the bile
duct :
Mucocele
Carcinoma
Obstructive jaundice
Cholangitis
Acute pancreatitis
3. In the intestines :
Acute intestinal obstruction
Silent gallstones:
Gallstones may present in the gall bladder without producing
any symptoms for long time. They may be detected accidentally on
X-ray, taken for another condition. Treatment should be
instituted only when symptoms occur.
Chronic calculous cholecystitis:
The gall bladder, which contains stones, may have a
thickened fibrotic wall. Bacteria can be cultured from the bile
and from the gall bladder wall. It may be asymptomtic or
symptomatic. Symptoms are supposed to be due to either
a) Inflammation of the gall bladder wall or
b) Obstruction of the outlet of the gall bladder by a stone
impacted in Hartmann’s pouch.
Symptoms:
1. Right hypochondrial pain:
It may be excruciating in certain cases, but not colicky in
nature. Sometimes it may be merely a discomfort. It may radiate
to between the shoulder blades. It may be associated with nausea
and vomiting. Fatty foods often precipitate the complaint. On
examination there is tenderness of hypochondrium- Murphy’s sign
is positive (catching pain experienced by while palpating the
gall bladder area during deep inspiration)
2. Flatulent dyspepsia:
This term is used to describe a feeling of fullness after food
associated with belching and heart burn. It is brought on by
large or a fatty meal.
Diagnosis is established by the following investigations:
1. USG abdomen is usually the only investigation needed to
show gallstones
2. Plain X-ray abdomen
3. Oral cholecystography
Treatment
a) General measure
Patient should be put on a low fat diet
Fluid and electrolyte balance should be maintained
c) Medicinal measures to alleviate the pain and dissolution of
gallstones
using bile acids ( chenodeoxycholic acid and ursodeoxycholic
acid)
d) Surgical Procedure
• Lithotripsy
• Cholecystostomy
• Cholecystectomy
Acute calculous cholecystitis:
The gall bladder already affected by the chronic
cholecystitis is acutely inflamed (acute exacerbation of chronic
cystitis). In majority of cases the gallstones are found
impacted in Hartmann’s pouch or obstructing the cystic duct.
The organisms, which can be cultured from the bile, are
1. E.coli
2. Klebsiella
3. Streptococcus faecalis
4. Salmonella Typhi
Sequele to an attack of acute cholecystitis include
1. Empyema
2. Perforation of inflamed and distended gall bladder.
3. Gangrene
Symptoms:
1. Sudden onset of pain in right hypopchondrium
2. Severe nausea and vomiting
3. Fever
Signs:
1. On examination tenderness and rigidity in right hypochondrium
2. Boas’s sign positive (there is an area of hyperaesthesia
between 9th and 11th ribs on right side)
Diagnosis is established by performing the following
investigations
1. X-ray – chest and plain abdomen to show the radiopaque stones
2. Examination of blood - Neutrophilia
3. Cholecystography
4. USG abdomen
Differential diagnosis
1. Appendicitis
2. Perforated peptic ulcer
3. Pancreatitis
4. Acute pyelonephritis
5. Myocardial infarction
6. Right lower lobe pneumonia
Treatment:
1. Conservative treatment followed by Cholecystectomy
2. Nasogastric aspiration and intravenous fluid administration
3. Cholecystostomy ( in severely ill and elderly patients)
4. Extracorporeal shock wave lithotrypsy
Mucocele of the gall bladder:
This occurs when a stone obstructs the neck of the gall
bladder, but the content remains sterile. The bile is absorbed
and replaced by mucus secreted by the gall bladder epithelium.
The gall bladder may be palpable.
Empyema of gall bladder:
The gall bladder appears to be filled with pus, it may be a
sequel of acute cholecystitis or the result of a Mucocele
becoming infected. Treatment is Cholecystectomy.
Stones in the Bile ducts:
Stones may be present in intra and extra hepatic bile ducts.
Usually they originate in the gall bladder and pass down the
cystic duct. Sometimes they form in the ducts and are then
called ‘ primary duct stones’. This may happen;
a) Secondary to infestation of the biliary tree by Ascaris
lumbricoids and Clonorchis Sinesis.
b) Any condition causing prolonged biliary obstruction
Consequences of duct stones:
1. Obstruction to the bile flow
2. Infection ( Cholangitis)
Symptoms:
1. Pain in the right hypochondrium
2. Jaundice – it may be intermittent or persistent. Obstructive
in type with dark urine and pale stool with pruritis
3. Fever and rigor
These three symptoms together constitute Charcot’s triad.
It indicates acute Cholangitis.
Signs:
Tenderness may be elicited in epigastrium and right
hypochondrium.
The gall bladder is impalpable.
Courvoisier’s law:
Gall bladder distention seldom occurs in obstruction of the
common bile duct due to stone (because the obstruction is
partial), where as obstruction of common bile duct due to other
causes (example; malignant obstructions which is often complete)
results in distention of gall bladder.
Differential diagnosis:
1. viral hepatitis
2. drug induced jaundice
3. primary biliary cirrhosis
4. pancreatic carcinoma
5. malignant jaundice
Diagnosis is established by performing the following
investigations:
1. Liver function test
2. USG abdomen
3. Endoscopic Retrograde Cholangio Pancreatico Graphy
4. Percutaneous Trans hepatic Cholangiography
Complications:
1. Biliary cirrhosis
2. Suppurative Cholangitis
3. Liver abscess
4. Septicemia
5. Clotting abnormalities
Management:
1. Treatment of liver failure if present
2. High intake of glucose to build up the store of liver
glycogen
3. Vitamin K administration
4. Rehydration using IV dextrose 5% or Mannitol
Surgical intervention:
1. Endoscopic Papillotomy:
This procedure is performed in patients who are unfit for
operation or who have previously had a Cholecystectomy. Stones
are extracted after performing ERCP. If stones cannot be removed
insertion of a stent will relieve the symptoms temporarily.
2. Percutaneous removal of stones:
If stones are detected on a postoperative T-tube cholangiogram,
it is possible to extract them through the T-tube.
3. Supra duodenal Choledochotomy and Trans duodenal
Choledochotomy:
These are procedure adopted for removal of stone from the common
bile duct and Ampulla of vater.
4. Choledochoduodenostomy:
Performed when multiple stones are present in common bile duct.
Miasm:
Sycotic on Psoric background.
The rubrics related
to Cholelithiasis:( In Synthesis 7.0)
1. Abdomen: Gallstones (727)
2. Abdomen: Pain; colic gallstone (746)
3. Abdomen : Liver and region of liver; complaints of ( 732)
4. Abdomen : Distention; eating after ( 722)
5. Abdomen : Flatulence (725)
6. Abdomen: Inflammation; gall bladder (731)
7. Abdomen : Pain; hypochondria, right (740)
8. Stomach : Eructations; empty (666)
9. Stomach: Heart burn ( 672)
10. General : Food; fat , aggr ( 1608)
11. Skin: Discoloration; yellow ( 1526)
12. Urine : Bile, containing ( 869)
13. Stool: Clay colored (821)
14. Chill : Shaking ( 1490)
15. Skin: itching ; jaundice; during ( 1545)
Therapeutics of Cholelithiasis:
Drainage remedies liver and bile ducts:
1. Solidago
2. Chelidonium
3. Cardus marianus
4. Taraxacum
5. Hydrastis
6. Chionanthus
7. China
8. Myrica
9. Berberies
Ground remedies:
5. Lycopodium
6. Phosphorus
7. Sulphur
8. Natrum sulphuricum
9. Lachesis
10. Arsenicum album
11. Sepia
12. Nux vomica
Functional remedies:
1. Chelidonium
2. Podophyllum
Organopathic remedies:
1. Fel tauri
2. Bilis
3. Proxitasis
Remedies useful
in painful spasms of the bile ducts:
1. Colocynthis
2. Dioscoria villosa
3. Bryonia
4. Chamomilla
Specifics useful in cholecystis:
1. Ricinus communis
3. Vipera
Remedies prepared from the organic substances:
4. Liver extract
5. Bile extract
6. Biliary salts
7. Calculus biliaris
8. Cholestrinum
9. Lecithin
10. Lutein
Choleretics and cholagogs:
1. Polypode
2. Cyanara scolymus
3. Combratum
4. Boldo
5. Rosemary
Reference:
1.
Short practice of surgery( 21st edition) – Bailey & Love
2. A manual on Clinical Surgery ( 4th edition) – S. Das
3. Therapeutics of the diseases of Liver and of the Bile ducts –
Fortier – Bernoville
4. Synthesis – Frederick Schroyens
5. Repertory of the Homoeopathic Materia medica – Kent.J.T.
|
|