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Pancreatitis
22
FrancescoBasile, AntonioBiondi, GuidoBasile, andMarcelloDonati
22.1 Introduction
The pancreatic parenchyma as well known is prone to a progressive atrophy during the time, being reduced to less than its original weight overcoming 80years of age [1]. Also a progressive increase of Wirsung’s duct over 8°years is to be observed [2]. So that in aged pancreas, a Wirsung’s width till 1cm can be occasionally observed without any evidence of obstruction; also calcication of splenic and mesenteric vessels can be registered without pathologic signicance; even a progressive peril­obular brosis is very often present in the elderly [3]. Not only the exocrine function but even the endocrine one was found to be progressively deteriorated with age; clinical signicance of both remains not clear [4].
Anyway pancreatitis in the elderly represents a well-dened spectrum of dis­eases that we could rst divide, relating to clinical evolution in acute pancreatitis and chronic pancreatitis. Those diseases represent completely different clinical con­ditions with different implications, early and long-term complications, and there­fore must be separately considered.
If acute pancreatitis in the elderly can present a dramatic clinical evolution, with complications, requiring sometimes a multidisciplinary approach and sometimes also intensive care support, chronic pancreatitis shows usually an indolent clinical evolution starting often when patients are young and showing “effects” in the elderly.
F. Basile (*) • A. Biondi • M. Donati Department of Surgery and Medical-Surgical Specialties, Surgical Clinic, Vittorio-Emanuele University Hospital of Catania, Catania, Italy e-mail: fbasile@unict.it
G. Basile Department of Surgery and Medical-Surgical Specialties, Emergency Abdominal Surgery Unit, University Hospital of Catania, University of Catania, Catania, Italy
© Springer International Publishing AG, part of Springer Nature 2018 A. Crucitti (ed.), Surgical Management of Elderly Patients,
https://doi.org/10.1007/978-3-319-60861-7_22
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F. Basile et al.
22.2 Acute Pancreatitis
22.2.1 Etiology
The main cause of acute pancreatitis also in the elderly is the cholelithiasis amount­ing for round 60% of cases. In 20–25% of cases, a history of alcoholic abuses can be found in the anamnestic data of those patients [5] even in combination white smoke [6]. While other causes like medicament adverse reaction, neoplastic dis­ease, trauma, and infections account for 5–10% of acute pancreatitis, it remains unclear the cause of about 10–15% that are dened idiopathic [7]. It’s nowadays generally accepted that a big percentage of patients (round 70%) with an idiopathic acute pancreatitis is affected by microlithiasis in duodenal juice, and this aspect shows obviously also therapeutic implications [8]. The most important traumatic cause of traumatic pancreatitis seems to be surgical or endoscopic procedures in the elderly, instead of accident or violent trauma. Of course endoscopic procedures amount for the most important cause of pancreatitis even if most of them are not gaining clinical signicance [9]. Diuretics, steroids, and tetracycline are those medicaments able to induce an acute pancreatitis generally; in the elderly the use of many different drugs for coexisting disease seems to be a rising problem for causing acute pancreatitis [10]. Etodolac, simvastatin, and isoniazid are medicaments more recently associated with acute pancreatitis induction; diffusion of this side effect in the elderly population is unknown.
A double binding exists between acute pancreatitis and pancreatic cancer, while round 10% of patients affected by pancreatic cancer are showing an acute pancreati­tis, and on the other hand, in patients affected by pseudocyst as a consequence of acute pancreatitis rarely, a coexisting pancreatic cancer is to be observed (over 60years round 8%).
There are some other minor causes of pancreatitis that should be mentioned; infectious disease like tuberculosis and fungal infections can be rarely responsible in the elderly of pancreatitis so like hypecalcemia, hypertriglyceridemia, and peptic ulcer.
22.3 Clinical Aspects, Diagnosis, andComplications
In the elderly like for young patients, the main symptom related to an acute pancre­atitis is the epigastric pain, with typical belt-like irradiation. In a cholelithiasis­induced pancreatitis, also a right upper quadrant pain can be referred. A discrepancy between the referred high grade of spontaneous abdominal pain and the clinical objectivity of the abdomen are typical clinical aspects of pancreatitis. A rare clinical sign of severe pancreatitis is the Cullen’s sign (periumbilical ecchymosis Fig.22.1). In the elderly the clinical presentation can be attenuated, also because pancreatitis can often appear in patients in postoperatory recovery, under sedation or being intu­bated. Therefore the clinical course can be not so evident in a consistent proportion of patients (till 40%). Even laboratory tests considering serum amylase and serum
22 Pancreatitis
Fig. 22.1 Cullen sign:
periumbilical ecchymosis due to retroperitoneal hemorrhagic lateral abdominal extension till subcutaneous area of a necrotich hemorrhagic acute pancreatitis
329
Fig. 22.2 Giant pancreatic pseudocyst as a complication of massive acute pancreatitis; 3D recon-
struction (a). On MRI it shows as a transverse diameter of 17cm (b)
lipase, and a threshold of 50ng/mL for urinary trypsinogen-2, can fail to demon­strate an acute pancreatitis in one every ten patients, delaying correct diagnosis and treatment [11]. Interestingly the mortality of pancreatitis is similar in young as in the elderly patients but in the young patients is more due to local complication like necrosis (Fig.22.3) or pseudocysts (Fig.22.2), while in the elderly, septic and sys­temic complications are mainly responsible of death. In fact while in young patients, abscess, necrotizing pancreatitis, and pseudocyst are more frequent complications; in the elderly pulmonary or renal failure and gastrointestinal bleeding and septic
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Fig. 22.3 Pancreatic
head necrosis: intraoperative nding during a necrosectomy
F. Basile et al.
shock are the most important and frequent complications. The mortality rate in the elderly can gain 20%, while in the young remains round 5–6%. This correlates well with the fact that age is intended to be a worse prognosis factor already in Ranson’s criteria.
Diagnostic and evolution of acute pancreatitis out of labor tests is based on US and CT scan, even MRI is very useful to dene retroperitoneal extension of disease, better identify choledocolitiasis or other coexistent diseases, and moni­tor complications’ evolution. Ultrasound is usually intended to be the rst-line imaging modality in the most part of rst aid centers in order to conrm the diagnosis and/or to rule out other kind of acute abdomen. Unfortunately US examination considering the acute clinical settings shows a lot of limitations (Turkvatan 2015); therefore CT scan is very often the very rst-line imaging technique to assess severity of involvement of peripancreatic structures and to check evolution of acute presentations. Rising interests in order to stage the severity of the disease were gained by magnetic resonance imaging. (It is espe­cially useful for imaging of patients with iodine allergies, characterizing collec­tions, and assessment of an abnormal or disconnected pancreatic duct.)
Not only age showed an inuence on clinical evolution, but even the etiology is related to hospital stay. Idiopathic pancreatitis has shown a worse clinical evolution in front of biliary and alcohol-based pancreatitis; those patients are showing a lon­ger hospital stay and a more severe clinical evolution [
12].
One of most diffused complications of surgical interest is represented by pan­creatic pseudocyst (Fig.22.3). The risk of developing a pancreatic pseudocyst is in recent studies (estimated around 7%), most of them are symptomatic, and no specic studies are published for the elderly. Fluid collection becomes an emer­gency when infected leading in the elderly to a high mortality risk (Tables 22.1 and 22.2).
22 Pancreatitis
Table 22.1 Severity score of acute pancreatitis (an overview)
Score (year) SOFA (1996/98) (sequential multiorgan failure assessment)
JSS (2009) (Japanese severity criteria for acute pancreatitis)
BISAP score (2009) Blood urea nitrogen >25mg/dl, impaired
APACHE-II (1985) (Acute Physiology and Chronic Health Evaluation) Balthazar-CTSI (1990) (CT severity index) Ranson (1974) Age, leucocitosis, glucose blood levels,
Factors Sensitivity Arterial oxygen saturation, fraction of
inspired oxygen, serum creatinine, total bilirubin, platelet count, itemized Glasgow Coma Scale score, mean arterial pressure, and use of vasopressors such as dopamine, dobutamine, adrenaline and noradrenaline 5 clinical items 10 blood test items CT ndings SIRS signs Age
mental status, systemic inammatory response syndrome (SIRS), age >60 years, and pleural effusions Age, Glasgow Coma score. Vital parameters, oxygenation, chemistry, hematology
Based on CT scan ndings 66.7 67.1
LDH, SGOT, azotemy, Ca++ blood levels, hematocrite reduction, PO seizure of liquids
, basis lost,
2
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Specicity
80% 79%
90% 79.8%
56% 91%
90% 86.8%
70–80% 44.3
Table 22.2 Complications after acute pancreatitis
Type of complications
Young Necrotizing pancreatitis, uid collection, abscess, pseudocyst 3–4% Elderly Pneumonitis (respiratory failure), renal failure, septic shock 5–10%
Mortality
22.4 Therapy
The treatment of an acute pancreatitis doesn’t differ signicantly from the same pathologic condition in the younger patients. Severe forms can require an intensive care setting. Out of clinical symptoms and evolution, CT scan and US scan are neces­sary to check evolution of diseases even when paucisymptomatic. Acute pancreatitis shows a variability of clinical presentation grades, ranging from light symptomatic to acute violent painful variants in which severe and extended necrosis of the paren­chyma induces even a peritoneal involvement and can cause severe complications. Therapeutic options are surgical and endoscopic, or interventional radiologic methods are reserved to severe and complicated forms. Of course a biliary stone-based pancre­atitis can be approached with ERCP, instead of early treating those patients; MRI and
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F. Basile et al.
perendoscopic US of the biliary tract can avoid unnecessary early endoscopic explora­tion of biliary tract, due to the fact that most of the stones are passing spontaneously in the duodenum [13, 14]. Laparoscopic cholecystectomy is also in the elderly the necessary approach after reliefs of pancreatitis symptoms and laboratory signs in order to avoid recurrences; the mandatory delay of 4–5weeks is able to reduce con­versions to open cholecystectomy due to periportal inammation making hard some­times the identication of CBD (common bile duct) [15].
Fluids collection can be nowadays safely routinely drained by interventional radiology techniques [16] so that the high success rates of those methods are reduc­ing surgical indications. Surgical exploration remains necessary in case of multi­locular septic involvement and extended necrosis making surgical necrosectomy, abdominal cavity lavage and drainage, and sometimes laparotomy mandatory.
Also a conservative approach especially in the elderly can be in selected patients considered. The surgical exploration should be selectively considered also in the treatment of complications like pseudocyst. Although the transgastric drainage of pseudocyst becomes a standard of care, following some morphological features of pseudocyst is driving the surgeon in the choice of the kind of treatment. In fact the pseudocyst should be contiguous to gastric wall, not in an inferior position in order to avoid complications. MRI and transendoscopic US can clarify which kind of treatment should be adopted, underlying the importance of a multidisciplinary set­ting in the management of pancreatic pseudocysts.
22.5 Chronic Pancreatitis
22.5.1 Etiology andEpidemiology
Chronic pancreatitis in the elderly can be caused by many different factors such as:
– Alcohol abuses – Autoimmune disease – Pancreatic anatomical anomalies (pancreas divisum, etc.) [17]
There is also the idiopathic form that collects all other chronic pancreatitis in which an etiology cannot be identied.
Recent studies [18] have shown the role of autoimmune mechanism in the chronic pancreatitis classifying also this disease in two histological subgroups (types 1 and 2).
The autoimmune pancreatitis should also be mentioned correlated to high levels of IgG4-positive plasma cells inltration of the pancreas and sensible to steroids treatment; this kind of acute pancreatitis was also associated to other clinical condi­tions like sclerosing cholangitis (50%), hilar lymphadenopathy (30%), and salivary gland involvement (20%) [19]. The idiopathic form seems to show to peaks of inci­dence: till 20years and in the elderly after 65.
22 Pancreatitis
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22.6 Symptoms andTherapy
Chronic pain especially postprandial pain and slow evidence of jaundice coming in an indolent way are the rst clinical signs and symptoms of a chronic pancreatitis. During the years it appears also some progressive symptoms of pancreatic insuf­ciency. Instead of pancreatitis in the young patients, in the elderly the clinical course is oligosymptomatic and pain is rarely present. Also signs of exocrine insufciency are slowly clinically evident and in most cases don’t require a surgical approach. The clinical problem can be sometimes the differential diagnosis with pancreatic cancer due to gland atrophy and parenchymal changes to be differentiated from pancreatic cancer. Exocrine pancreas substitution and compensation of diabetes are therapeutical approach with medicaments. The surgical treatment of pain through Frey’s procedure [20] (resection of pancreatic head for decompression of the Wirsung’s duct) or Partington-Rochelle operation (longitudinal jejunum derivation of Wirsung’s duct) [21] that are together with the alcoholization of celiac plexus for the pain control, the most adopted surgical options in the young patients, for this disease is rarely indicated in the elderly. Nowadays endotherapy [22] is the main therapeutical approach for symptoms relief of chronic pancreatitis under US control endoscopic sphincterotomy, and Wirsung’s incannulation is able to obtain clinical resolution of pain. Even plastic ore metallic stent positioning is nowadays more adopted and diffused. Surgery in the elderly was quite completely replaced by endo­scopic procedures [23].
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Benign andMalignant Lesions oftheLiver
FrancescaRomanaPonziani, GiuliaGibiino, andAntonioGasbarrini
23.1 Introduction
Primary liver cancer represents approximately 4% of all new cancer diagnosed worldwide and is the third most common cause of cancer-related deaths among men and the sixth among women, respectively [1].
Hepatic tumors may derive from hepatocytes, bile duct epithelium, or mesenchy­mal tissue or spread to the liver from primary tumors in remote or adjacent organs.
In adults, hepatic metastases are more common than primary malignant tumors of the liver, whereas in children, primary malignant tumors outnumber both metas­tases and benign lesions. Except for cavernous hemangiomas, benign hepatic tumors are rare in all geographic regions and in all age groups. It is widely accepted that the risk of developing hepatocellular carcinoma (HCC) is age dependent [2]; hence, in Western countries, the diagnosis of HCC is more frequent in patients aged 70 or more, and being faced with elderly cirrhotic patients with HCC has become fre­quent in clinical practice [24].
23
23.2 Primary Malignant Tumors
23.2.1 Hepatocellular Carcinoma
Hepatocellular carcinoma is the most common primary malignant tumor of the liver, accounting for 85–90% of all primary liver cancers. It is the fth most com­mon cancer in men and the eighth most common in women, ranking fourth in annual cancer mortality rates [5]. The global age distribution of HCC varies by region,
F.R. Ponziani (*) • G. Gibiino • A. Gasbarrini Internal Medicine, Gastroenterology and Hepatology, Agostino Gemelli Hospital, Rome, Italy e-mail: Antonio.Gasbarrini@unicatt.it
© Springer International Publishing AG, part of Springer Nature 2018 A. Crucitti (ed.), Surgical Management of Elderly Patients,
https://doi.org/10.1007/978-3-319-60861-7_23
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incidence rate, gender, and etiology. In Western low-risk populations, men are gen­erally more susceptible to HCC, and the highest rates occur among persons aged 75 and older [6, 7].
The mechanisms of HCC pathogenesis are complex and usually involve liver injury followed by inammation, necrosis, and hepatocytes proliferation. The per­petuation of this destructive- regenerative process results in the development of liver cirrhosis, which is characterized by regenerating nodules that progress to dysplastic nodules and ultimately to HCC [8]. Indeed, cirrhosis is present in about 80–90% of patients with HCC being, therefore, the most frequent risk factor. Other risk factors are hepatitis B virus (HBV) and hepatitis C virus (HCV) infections, aatoxin, alco­hol intake, obesity, and diabetes.
Worldwide, around 400 million people are estimated to be chronically infected by HBV [9]. The HBV appears to be directly and indirectly carcinogenic, and HCC develops in as many as 25% of them [10].
HBV continues to be the major HCC risk factor worldwide, being the main lead­ing factor to date compared to HCV, although its importance is expected to decrease during the coming decades due to the widespread diffusion of HBV vaccination in the newborns [5]. Approximately 170 million people in the world are chronically infected with HCV and are at increased risk of HCC development.
In Japan, Italy, and Spain, HCV is the cause of about 75% of HCCs, and, in other industrialized countries, chronic HCV infection, often in combination with alcohol abuse, is emerging as a major cause of this tumor. Patients with HCV-induced HCC are generally older than those with HBV-related tumors, and HCV infection was usually acquired in adult life [11].
Together, HBV and/or HCV chronic infections account for 80–90% of all HCC worldwide [12]. The variable age-specic patterns in different countries are related to differences in the dominant hepatitis virus in the population, the age at viral infection ,and the existence of other risk factors. According to EASL recommenda­tions, in patients with chronic hepatitis, antiviral therapies leading to maintained HBV suppression in chronic hepatitis B and to sustained viral response in hepatitis C are recommended, since they have been shown to prevent progression to cirrhosis and hence HCC development [
10].
Heavy alcohol intake, dened as ingestion of >50–70g/day for prolonged peri­ods, is a well-established risk factor for HCC, and there is also evidence of a syner­gistic effect of heavy alcohol intake with HCV or HBV chronic infection [13].
Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH), often associated with metabolic syndrome, are other well-known risk fac­tors for HCC.
The relationship between cigarette smoking and HCC has been widely examined in both low- and high-risk areas, and discordant ndings have been reported [5].
Although the typical clinical features of HCC (including abdominal pain and weight loss in patients with cirrhosis) are not always present and difcult to be rec­ognized in patients with liver cirrhosis, nowadays more patients are being diagnosed at an early tumor stage, when they have no specic symptoms or signs. This is prob­ably the result of the surveillance programs adopted among patients with cirrhosis,