Hemorrhoids are a collection of vascular tissue, smooth muscle, and connective tissue
arranged in an inner column along the anal canal. Although they are normal structures,
the term "hemorrhoids" refers to a pathological or symptomatic process. Internal
hemorrhoids are located above the dentate line and are lined by columnar epithelium,
which is innervated by visceral nerve fibers and not associated with pain, depending on
the degree of prolapse, according to the Goligher classification. External hemorrhoids
lie below the dentate line, are innervated by somatic nerves, and are usually
asymptomatic.
Although the most common pathophysiologic cause of hemorrhoids is increased anal pressure
at rest, the exact etiologic cause remains unclear. Factors that increase intra-abdominal
pressure (IAP), such as straining during a bowel movement, prolonged sitting on the
toilet, constipation/diarrhea, obesity, pregnancy, and age-related tissue weakening, can
contribute to hemorrhoid development. However, the risk factors for hemorrhoids have not
been sufficiently investigated.
The co-contraction of the thoracic, abdominal, and pelvic muscles results in a voluntary
or reflex movement. This movement increases intrathoracic and intra-abdominal pressure
(IAP), with IAP averaging 81.4-107.6 mmHg during coughing, compared to an average of 16.7
mmHg in the sitting position . The effect of coughing on IAP and its possible
complications have been reported in case studies (e.g., urinary incontinence, pelvic
organ prolapse) and electromyography studies.
A. Sadiqa et al. reported that hemorrhoids may develop as a gastrointestinal complication
of coughing, but the relationship between cough and hemorrhoids has never been
prospectively investigated.
Although there are no studies on the prevalence of hemorrhoids in our country, it is the
third most common gastrointestinal diagnosis in the USA, with approximately 4 million
outpatient and emergency department visits per year. The epidemiology of hemorrhoids has
been theorized but remains largely unsupported by reliable research. Simply put, the
commonly believed risk factors for hemorrhoids have not been adequately investigated.
From an epidemiologic standpoint, whether coughing is a predisposing factor for
hemorrhoids will be investigated for the first time in our study. We believe that this
study may provide valuable insights for determining goals and strategies for the
treatment and management of hemorrhoids, optimizing resource utilization, and offering
evidence-based recommendations to patients. The study will be conducted using a
prospective observational data collection method. The sample size was calculated using
G*Power 3 software (Institute of Experimental Psychology, Heinrich Heine University,
Germany). Power analysis showed a medium effect size (Cohen's d: 0.5), and the minimum
number of samples required to detect a statistical difference at 95% power and a
significance level of α = 0.05 was 134.
Patients diagnosed with hemorrhoidal disease in the general surgery outpatient clinic of
our hospital will be included in the study. Demographic information, such as age, gender,
educational status, and occupational status, will be recorded for patients who sign the
voluntary informed consent form. Additionally, data on the duration of hemorrhoidal
disease based on symptomatology, the stage of the disease according to the Goligher
classification, the presence of additional proctologic diseases, the presence or absence
of constipation symptoms, the severity of bleeding, nutrition and toilet habits, and
previous medical or surgical treatments for hemorrhoidal disease will be collected.
Information regarding the presence of cough, additional obstructive pulmonary diseases,
medications, smoking or alcohol use, the Leicester Cough Questionnaire, and the Cough
Visual Analog Scale (Cough VAS) will also be recorded. Patients with cough will be
referred to the Department of Chest Diseases for diagnostic and therapeutic evaluation to
investigate the etiology of cough.
If sufficient information is collected from a sufficient number of patients who meet the
study criteria, the data will be analyzed.