Initial Experience Using Propranolol as an Adjunctive Treatment in Children with Aggressive Recurrent Respiratory Papillomatosis
ABSTRACT We performed a retrospective chart review with a 6-month follow-up to examine the initial use of propranolol as an adjunctive treatment in children with severe recurrent respiratory papillomatosis. This is the first such report. Two of 3 children with severe recurrent respiratory papillomatosis demonstrated a response to oral propranolol therapy, as evidenced by an improved voice and by an increased time between surgical interventions. One child demonstrated no response to propranolol, and medication was halted. Both children who demonstrated a response had undergone more than 10 surgical interventions in the previous year, along with prior treatment including surgical excision and adjuvant therapy. Both children more than doubled the interval between treatments after propranolol administration, and the parents of both children noted marked improvement of the child's voice as measured by their Pediatric Voice-Related Quality of Life score (from 40 to 67.5 in one child and from 27 to 60 in the other child). No child experienced hypoglycemia or blood pressure abnormalities. We conclude that initial use of propranolol as an adjunctive measure in severe recurrent respiratory papillomatosis shows it to have some efficacy in delaying surgical intervention and improving voice. Previous reports have demonstrated relatively safe use of propranolol in children with hemangiomas. Further studies are needed to determine the long-term effectiveness, dosing strategies, and side-effect profile of propranolol for treatment of recurrent respiratory papillomatosis.
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- "Our patient had undergone multiple excisions till the age of 29 years and then after that has undergone CO2 laser excision at our center which has shown good results in the management of recurrent laryngeal papillomatosis. Other options tried in literature are inhalational interferon, intralesional cidofovir, propranolol, imiquimod and ribavirin, with variable results. The most important factor predisposing patients of laryngeal papilloma to carcinoma was found to be prior radiation therapy to this benign lesion. "
ABSTRACT: A young male patient was diagnosed to have laryngeal papillomas at the age of 3 years for which he underwent permanent tracheostomy and also multiple surgical and laser excision procedures. Then, later in life, the patient had progressive breathlessness and dysphagia. On examination, he had supraclavicular lymphadenopathy showing squamous carcinoma pathology. Since laryngeal papillomas have a high propensity to transform into laryngeal squamous cell carcinoma, he was first evaluated for laryngeal carcinoma which was negative. Esophagoscopy showed a growth in the esophagus, the biopsy of which was positive for squamous malignant cells. Patient was then started on palliative chemotherapy with combination of paclitaxel and carboplatin, and at progression with weekly nanoxel with stable disease. This is a rare case of childhood laryngeal papillomatosis progressing to metastatic esophageal carcinoma. This case has been presented to highlight the fact that patients with laryngeal papillomas are not only at high risk of progressing to laryngeal carcinoma but can also have other malignancies of the upper aerodigestive tract and lung. Most of them have been correlated to human papilloma virus (HPV), but in our patient HPV DNA was negative.Indian journal of medical and paediatric oncology 04/2013; 34(1):34-7. DOI:10.4103/0971-5851.113420
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- "In addition, ICI 118551, a β2-adrenoceptor blocker, significantly synergized the antiproliferative and pro-apoptotic effects induced by gemcitabine to inhibit the proliferation of pancreatic cancer cells.30 The use of propranolol as an adjunctive treatment has been reported for severe recurrent respiratory papillomatosis.31 Propranolol enhanced the sensitivity of gastric cancer cells to radiation by inhibiting β-adrenergic receptors and the downstream nuclear factor kappa-B cells (NF-κB)-VEGF/epidermal growth factor receptor/cyclooxygenase (COX)-2 pathway.32 "
ABSTRACT: Cancer is the leading cause of death in the USA, and the incidence of cancer increases dramatically with age. Beta-adrenergic blockers appear to have a beneficial clinical effect in cancer patients. In this paper, we review the evidence of an association between β-adrenergic blockade and cancer. Genetic studies have provided the opportunity to determine which proteins link β-adrenergic blockade to cancer pathology. In particular, this link involves the major histocompatibility complex class II molecules, the renin-angiotensin system, transcription factor nuclear factor-kappa-light-chain-enhancer of activated B cells, poly(ADP-ribose) polymerase-1, vascular endothelial growth factor, and the reduced form of nicotinamide adenine dinucleotide phosphate oxidase. Beta-adrenergic blockers also exert anticancer effects through non-genomic factors, including matrix metalloproteinase, mitogen-activated protein kinase pathways, prostaglandins, cyclooxygenase-2, oxidative stress, and nitric oxide synthase. In conclusion, β-adrenergic blockade may play a beneficial role in cancer treatment. Additional investigations that examine β-adrenergic blockers as cancer therapeutics are required to further elucidate this role.Cancer Management and Research 12/2012; 4:431-45. DOI:10.2147/CMAR.S39153
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ABSTRACT: The excision of laryngeal papillomas poses a great challenge for both the anesthesiologist and the surgeon. The narrowness of the airways and the great variability of the pathological lesions necessitate close collaboration between the surgical and anesthesia teams to provide optimal operating conditions and ensure adequate ventilation and oxygenation. Our aim was to explore perioperative anesthesia management in pediatric patients during the excision of laryngeal papillomas with a suspension laryngoscope. Fifty-eight pediatric patients suffering from laryngeal papillomas were included in this retrospective study. These patients had degrees of laryngeal obstruction from I to III and underwent suspension laryngoscopic surgery to excise laryngeal papillomas between January 2007 and December 2010. The American Society of Anesthesiologists (ASA) physical status of the patients ranged from I to III. Anesthesia was induced by intravenous administration. Once the child was unconscious, a 2% lidocaine aerosol solution was sprayed over the laryngeal area directly under the laryngoscope. For patients to tolerate suspension laryngoscopy, it is necessary to maintain spontaneous breathing and ensure adequate anesthesia depth. The airway was secured, and sufficient ventilation was established throughout a tracheal tube (ID 2.5 or 3.0) which was placed close to glottis and connected to Jackson Rees system. Hemodynamic parameters and pulse oxygen saturation (SpO(2)) were closely monitored, and adverse events were recorded. Most of the patients 89% (52/58) were hemodynamically stable during the perioperative period. Laryngospasm and laryngeal edema occurred in several children during emergence from the anesthesia. Tracheal intubations were performed in six patients (10.3%). Tracheotomies were performed in two patients. One patient had to be sent to the ICU for comprehensive therapy. The most important consideration for anesthesia during suspension laryngoscopy is (1) the maintenance of adequate ventilation, (2) to permit surgical exposure, and (3) to maintain suitable depth of anesthesia which relaxes the vocal band, avoids laryngeal spasms (reflex closure), reduces cardiovascular reaction and wakes up quickly after operation. Any factors that aggravate laryngeal obstruction and dyspnea should be avoided.International journal of pediatric otorhinolaryngology 09/2011; 75(11):1442-5. DOI:10.1016/j.ijporl.2011.08.012 · 1.19 Impact Factor